Duct Assembly

Description

FIELD OF THE INVENTION

The present invention relates to a duct assembly and, more particularly, to a duct assembly for streamlined insulation.

BACKGROUND

In general, previous heating, ventilation, and air conditioning (“HVAC”) include defects such as air leaks which equals to air drag and increase noise. In order to combat these deficiencies, the duct assembly focuses on each section of a complete polyvinyl chloride (“PVC”) duct system to improve efficiency in hot or cold airflow throughout a given structure, eliminating air leaks, causes for air drag, and noise reduction. The duct assembly enables a single individual to complete a streamlined install with the use of very few industry tools, safer to work with, and handle without compromising installation time. The duct assembly of the application removes the potential for debris buildup and provides a clean out solution.

As the foregoing illustrates, the invention provides the duct assembly to rectify the deficiencies of previous designs available to the public.

SUMMARY

A duct assembly includes a starting collar which includes a first layer and a second layer. The duct assembly further includes a first end of a supply plenum which couples to the starting collar. The duct assembly further includes a transition collar connected to a second end of a supply plenum. The duct assembly further includes a trunk line with a plurality of trunks, each trunk includes a male end connection and a female end connection, the male end connection of a first trunk is slidably connectable to the female end connection of a second trunk.

BRIEF DESCRIPTION OF DRAWINGS

In the following, the present invention is described in more detail with references to the drawings in which:

FIG. 1 illustrates a perspective view of the duct assembly;

FIG. 2 illustrates an exploded view of a portion of the duct assembly;

FIG. 2A is an isolated view of FIG. 2;

FIG. 3 is an exploded view;

FIG. 4 is a front, top, left side perspective view;

FIG. 5 illustrates a left side perspective view;

FIG. 6 illustrates a top, left side perspective view;

FIG. 7 illustrates a front, top, left side perspective view;

FIG. 8 illustrates a front, top, left side perspective view;

FIG. 9 illustrates a left side perspective view;

FIG. 10 illustrates a left side exploded view;

FIG. 11 illustrates a left side exploded view;

FIG. 12 illustrates a left side perspective view;

FIG. 13 illustrates a top, left side perspective view;

FIG. 14 illustrates a left side perspective view;

FIG. 15 illustrates a left side perspective view;

FIG. 16 illustrates a left side exploded view;

FIG. 17 illustrates a left side exploded view;

FIG. 18 illustrates a left side exploded view;

FIG. 19 illustrates a left side exploded view;

FIG. 20 illustrates a front perspective view;

FIG. 21 illustrates a left side perspective view;

FIG. 22 illustrates another left side perspective view of FIG. 21;

FIG. 23 illustrates another top, left side perspective view;

FIG. 24 illustrates another top, left side perspective view;

FIG. 25 illustrates a front, top, left side perspective view;

FIG. 26 illustrates a front, top, left side perspective view;

FIG. 27 illustrates a front, top, left side perspective view;

FIG. 28 illustrates a front, top, left side perspective view;

FIG. 29 illustrates a left side perspective view;

FIG. 30 illustrates a right side perspective view of FIG. 29;

FIG. 31 illustrates a left side perspective view;

FIG. 32 illustrates a front, top, left side perspective view;

FIG. 33 illustrates a front, top, right side perspective view;

FIG. 34 illustrates a left side perspective view;

FIG. 35 illustrates a top, left side perspective view;

FIG. 36 illustrates a front, top, left side perspective view;

FIG. 37 illustrates a front, top, left side perspective view;

FIG. 38 illustrates a front, top, right side perspective view;

FIG. 39 illustrates a left side perspective view;

FIG. 40 illustrates a front, top, left side perspective view;

FIG. 41 illustrates a front, top, left side perspective view;

FIG. 42 illustrates a front, top, left side perspective view;

FIG. 43 illustrates an exploded view;

FIG. 44 illustrates another exploded view of FIG. 43; and

FIG. 45 illustrates a front, top, left side perspective view.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure includes a duct assembly according to the invention. In the exemplary embodiment, the duct assembly 1 is generally constructed by a plurality of components.

As shown in FIGS. 2-45, the plurality of components will be described below.

As shown in FIG. 2, a supply plenum 10 is shown.

In the exemplary embodiment, the supply plenum 10 as shown is a rectangular member. Specifically, the supply plenum 10 is a five-sided box structure. A length of the supply plenum 10 is 48″. The supply plenum 10 further includes a passageway 12 on a bottom portion of the supply plenum 10.

In the exemplary embodiment, the supply plenum 10 further includes a rough cut passageway 14 positioned towards an upper portion of the supply plenum 10. The rough cut passageway 14 extends within the supply plenum 10.

The supply plenum 10 further includes a clean out passageway 16 positioned below the rough cut out passageway 14. The clean out passageway 16 extends within the supply plenum 10. In the exemplary embodiment, the clean out passageway 16 is 6″ in diameter. The remaining measurements of the supply plenum 10 are sized to fit a furnace F or air handler and supply starting collar 20 as it will slide into the passageway 12 of the bottom portion which is about ¼″ thick.

As shown in FIG. 2, a starting collar 20 as shown includes a first layer 22 and a second layer 24.

The first layer 22 is a rectangular seal. In another embodiment, the first layer 22 can be a different design depending on the opening of the furnace. The first layer 22 is composed of foam. The first layer is ¼″ in thickness and ½″ wide. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

As shown in FIG. 2, the second layer 24 is adherent to the first layer 22. The second layer 24 includes a female collar 26 positioned against the first layer 22. The female collar 26 is a 2″ inch square member. The female collar 26 is ¼″ in thickness.

The female collar 26 includes a central component 28, a first outside component 30 and a second outside component 32.

The central component 28 is a square shaped opening. In another embodiment, the central component 28 can include a different polygonal shape. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

The first outside component 30 is rectangular shaped, which is attached firmly to one end of the central component 28. The first outside component 30 further has a perimeter greater than a perimeter of the central component 28.

In the exemplary embodiment, the first outside component 30 further includes a plurality of snap fittings 34. Each of the snap fittings 34 includes a base member 36 and contact member 38. The base member 36 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The base member 36 extends from an outer surface of an opening of the female collar 26. The contact member 38 is an elongated triangular shape, specifically, the contact member 38 abuts and tapers away from the base member 36. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment, as shown in FIG. 2-2A each of the snap fitting 34 are equally spaced around the opening of the female collar 26. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment, the second outside component 32 is rectangular shaped, which is attached firmly to a second end of the central component 28. The second outside component 32 has a perimeter less than the perimeter of the central component 28.

In the exemplary embodiment, the second outside component 32 includes a male end connection 40 oppositely facing the first outside component 30.

The central component 28, the first outside component 30 and the second outside component 32 all share an opening in the central region extending through. The starting collar 26 will be used for an airtight connection to connect the supply plenum 10 to the HVAC system's supply outlet, furnace or air handler.

As shown in FIG. 3, a transition collar 50 includes a first layer 52 and a coupler 54.

In the exemplary embodiment, the first layer 52 is a rectangular seal. In another embodiment, the first layer 52 can be a different design depending on an opening of the supply plenum 10. The first layer 52 is composed of foam. The first layer 52 is ¼″ in thickness and ½″ wide. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

As shown, the coupler 54 includes a central component 55, a first outside component 58 and a second outside component 62.

The central component 55 is a four wall enclosure. Specifically, the central component 55 includes at least three tapering side walls 56 and a planar top wall 57.

The first outside component 58 is rectangular shaped, which is attached firmly to one end of the central component 55. The first outside component 58 has a perimeter greater than a perimeter of the central component 55.

In the exemplary embodiment, the first outside component 58 further includes a plurality of snap fittings 60, the snap fittings 60 are similar to the snap fittings of the female collar 26. For sake of brevity, the snap fittings will not be introduced again.

In the exemplary embodiment, the second outside component 62 is rectangular shaped and attaches firmly to a second end of the central component 55. The second outside component 62 has a perimeter less than the perimeter of the central component 55.

The second outside component 62 includes a male end connection 64 oppositely facing the first outside component 58.

The central component 55, the first outside component 58 and the second outside component 62 all share an opening in the central region extending through. The transition collar 50 will be used for coupling the supply plenum 10 to a plurality of trunk components.

In the exemplary embodiment, as shown in FIG. 4, a trunk line 70 with a plurality of trunks 72 is shown.

In the exemplary embodiment, each trunk 72 of the plurality of trunks 72 is a rectangular structure. Each trunk 72 includes a hanger flange 74 coupled to each top corner of each trunk 72. Each hanger flange 74 is 1″×¼″ in order to slide into hangers to secure the trunk line 70 to an upper structure. Each hanger flange 74 is stepped shaped. One skilled in the art would understand the dimensions of the HVAC unit will determine the size of each trunk 72 of the trunk line 70.

Each trunk 72 further includes a clean out passageway 76 positioned on a central bottom portion of the trunk 72. Each trunk 72 further includes a channel 78 extending through the inner portion of the trunk 72. One skilled in the art would understand the applicant's design is not the exclusive embodiment. In an alternative embodiment, the clean out passageway 76 is not present.

As shown in FIG. 5, each trunk 72 further includes a male end connection 80.

In the exemplary embodiment, the male end connection 80 is 1″ long×⅛″ in thickness. The male end connection 80 is positioned adjacent a border of the trunk 72 and extends beyond an exterior of the trunk 72.

In the exemplary embodiment, each trunk 72 further includes a female end connection 82. The female end connection 82 is positioned on a border of each trunk 72 opposite the male end connection 80. The female end connection 82 is 1″ long×⅛″ in thickness. The female end connection 82 is positioned entirely within the interior of the trunk 72. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

As shown in FIG. 5, the male end connection 80 of a first trunk 72 is coupled and slides into the female end connection 82 of a second trunk 72 creating a linking of the first trunk and the second trunk.

As shown in FIG. 6, a center trunk line reducer 90 as shown is a coupling member. The center trunk line reducer 90 includes a first sector 92, a second sector 96 and a third sector 98.

In the exemplary embodiment, the first sector 92 is rectangular shaped. The first sector 92 further includes a female end connection 94. The female end connection 94 is positioned entirely within the first sector 92 and extends an entire opening of the first sector 92.

In the exemplary embodiment, the second sector 96 is a tapering member coupled to the first sector 92. The second sector 96 has a larger width near the first sector 92 than the third sector 98.

In the exemplary embodiment, the third sector 98 is square shaped. The third sector 98 further includes a male end connection 100. The male end connection 100 extends beyond a perimeter opening of the third sector 98 and around the perimeter opening of the third sector 98.

The center trunk line reducer 90 is a smaller dimensional version of the trunks 72 described above. The center trunk line reducer 90 reduces the size of the trunk line 70 to maintain air flow (CFM) velocity as the trunk line 70 increases in length.

As shown in FIG. 7, a “T” trunk line 110 is shown.

In the exemplary embodiment, the “T” trunk line 110 includes polygonal structure 112. The polygonal structure 112 includes an inward passageway 114 and a pair of outward passageways 120.

The inward passageway 114 extends within the polygonal structure 112. The inward passageway 114 includes a female end connection 116. The female end connection 116 extends a perimeter of the inward passageway 114. The inward passageway 114 further includes a pair of edging 118 positioned on opposite sides of the inward passageway 114. The pair of edging 118 extends away from the polygonal structure 112.

The outward passageways 120 extend through the polygonal structure 112. Each outward passageway 120 includes a male end connection 122 positioned past an opening of the outward passageways 120. The outward passageways further include a peak 124. The peak 124 is a tapering member, tapering towards the inward passageway 114. The inward passageway 114 is positioned between the two outward passageways 120 in order to divert air coming from the inward passageway 114. The outward passageways 120 further include an edging 126. The edging 126 extends past and away from the polygonal structure 112. Additionally, the edging 126 extends above the peak 124 and along both outward passageways 120.

As shown in FIG. 8, a trunk line end cap 130 is shown.

The trunk line end cap 130 is a rectangular member positioned at an end of the completed trunk line 70. The trunk line end cap 130 includes a female end connection 132, extending around an inner perimeter of the trunk line end cap 130. One skilled in the art would understand the dimensions of the trunk line end cap depend on the size of the trunk line implemented.

The trunk line end cap 130 further includes a circular passageway 134 extending through the central region of the trunk line end cap 130. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment, the trunk line end cap 130 further includes a stopper 136. The stopper 136 is a circular member, configured to be positioned within the circular passageway 134. However, one skilled in the art would understand the applicant's design is not the exclusive embodiment.

As shown in FIG. 9, a supply/return line 140 is shown. The round supply/return line 140 is an elongated cylindrical member. A diameter of the size of the supply/return line 140 is 4″, 5″, 6″, 7″, 8″, 9″. A length size of the supply/return line 140 is 2′, 5′, 10′. The supply/return line 140 includes a passageway 142 extending through the length of the supply/return line 140.

As shown in FIG. 9, the supply/return line 140 includes a male end connection 144. The male end connection 144 is 1″×⅛″. The male end connection 144 is positioned at one end of the supply/return line 140 and extends outwards from the supply/return line 140. The male end connection 144 extends an entire opening of the supply/return line 140.

The supply/return line 140 further includes a female end connection 146. The female end connection 146 is 1″×⅛″. The female end connection 146 is positioned at a second end of the cylindrical member. The female end connection 146 is positioned entirely within the supply/return line 140. The female end connection 146 extends an inner circumference of the supply/return line 140.

The supply/return line 140 extends from the trunk 72 of the plurality of trunks 70 to circulate hot and cold air flow into specific areas of the structure and cycle air back through the return plenum 580.

As shown in FIG. 10, a top take-off snap-in fitting 150 is shown.

In the exemplary embodiment, the top take-off snap-in fitting 150 includes a flange portion 152, a throat portion 162 and a male connection portion 164.

The flange portion 152 is a circular opening. The flange portion 152 is about ½″ wide×¼″ thickness. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The flange portion 152 further includes a passageway 154 extending within the flange portion 152.

The flange portion 152 further includes a plurality of snap fittings 156. Each of the snap fittings 156 includes a base member 158 and contact member 160. The base member 158 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The contact member 160 is an elongated triangular shape, specifically, the contact member 160 abuts and tapers away from the base member 158. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

The snap fittings 156 are positioned on the perimeter of the flange portion 152. Each snap in fitting 156 is ⅝″ L×1″ W×⅛″. Additionally, each snap in fitting 156 is spaced apart 1″ on the perimeter of the flange portion 152.

The throat portion 162 is an elongated L-shaped member. The throat portion 162 is coupled to the flange portion 152 and has a smaller perimeter than a perimeter of the flange portion 152.

The throat portion 162 further includes a male connection portion 164. The male connection portion 164 is positioned on an opposite end from the opening of the flange portion 156. The male connection portion 164 has a smaller perimeter opening than a perimeter opening of the throat portion 156. The male connection portion 164 extends beyond the perimeter opening of the throat portion 156.

The top take-off snap-in fitting 150 further incudes a seal portion 166 positioned against the flange portion 152.

As shown in FIG. 10, the seal portion 166 is ½″ wide×¼″ thick. The seal portion 166 is composed of foam. The top take-off snap-in fitting 150 is implemented for adding supply/return lines 140 from the top of the trunk 70.

As shown in FIG. 11, a side take-off snap-in fitting 170 is shown.

In the exemplary embodiment, the side take-off snap-in fitting 170 is a cylindrical member. A length of the cylindrical member is 2″. The side take-off snap-in fitting 170 includes a flange portion 172 and a male connection portion 180.

The flange portion 172 is a circular member having a perimeter greater than the perimeter of the cylindrical member. The flange portion 172 is positioned on a bottom portion of the cylindrical member. The flange portion 172 is ½″ wide×¼″ thick.

As shown in FIG. 11, the flange portion 172 further includes a plurality of snap in fittings 174. Each of the snap fittings 174 includes a base member 176 and contact member 178. The base member 176 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The contact member 178 is an elongated triangular shape, specifically, the contact member 178 abuts and tapers away from the base member 176. One skilled in the art would understand the applicant's design is not the exclusive embodiment. Each snap in fitting 174 is ⅝″ L×1″ W×⅛″. Additionally, each snap in fitting 174 is spaced apart 1″ on the perimeter of the flange portion 172.

The side take-off snap-in fitting 170 further includes a male connection portion 180 positioned on an opposite end of the flange portion 172. The male connection portion 180 is 1″×⅛″. The male connection portion 180 has a smaller perimeter than the cylindrical member and extends beyond the opening of the cylindrical member of the side take-off snap-in fitting 170. The side take-off snap-in fitting 170 is implemented for adding supply/return lines 140 to a side of the trunk 72.

The side take-off snap-in fitting 170 further includes a seal portion 182 positioned against the flange portion 172. The seal portion 182 is ½″ wide×¼″ thick. The seal portion 182 is composed of foam.

As shown in FIG. 12, a round coupler 190 is shown.

In the exemplary embodiment, the round coupler 190 is a cylindrical member. The round coupler 190 further includes a passageway 192 extending therethrough. The round coupler 190 is used for supply/return lines 140 that need to be reconnected. One skilled in the art would understand the clients design is not the exclusive embodiment. The round coupler 190 may include a diameter size of 4″, 5″, 6″, 7″, 8″, 9″ and ¼″ thickness. The round coupler 190 includes a length of 2″.

The round coupler 190 further includes a wide collar 194 positioned cylindrically within the round coupler 190. The wide collar 194 is ¼″ wide.

As shown in FIG. 13, a coupler 200 is shown. The coupler 200 includes a rectangular outer housing 202.

The coupler 200 further includes a first interior section 204 and a second interior section 206 positioned within the rectangular outer housing 202.

The first interior section 204 is a pair of rectangular openings. The first interior section 204 includes almost the entire portion of an interior of the coupler 200.

The second interior section 206 is a rectangular opening with a width less than a width of the first interior section 204. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

As shown in FIGS. 14 and 15, a supply/return line 220 is shown. The supply/return line 220 includes a rectangular elongated member 222. The rectangular elongated member 222 includes a length size of 2′, 4′, 6′, 8′, a width size of: 8″, 10″, 12″, a height size of: 2″ and a thickness of ¼″. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment, the supply/return line 220 includes a male end connection 224. The male end connection 224 is positioned along a perimeter of an end of the rectangular elongated member 222. The male end connection 224 protrudes beyond the rectangular elongated member 222.

In the exemplary embodiment, the supply/return line 220 further includes a female end connection 226 positioned at an end opposite from the male end connection 224. The female end connection 226 is a rectangular insert positioned along an interior of the return supply/return 220. Specifically, the female end connection 226 is positioned along an interior opening of the rectangular elongated member 222.

The return supply/return line 220 further includes a clean out passageway 228 positioned on a bottom portion of the rectangular elongated member 222. The rectangle supply/return line 220 extends from the trunk line 72 to circulate hot and cold air flow into specific areas of the structure and cycle air back through the return plenum.

In the alternate exemplary embodiment, the return supply/return line 220 further includes a pair of flanges 230 extending from opposing sides edges of the rectangular elongated member 222. Each flange 230 protrudes outwards and away from the rectangular elongated member 222.

The rectangle supply/return line 220 extends from the trunk line 72 to circulate hot and cold air flow into specific areas of the structure and cycle air back through the return plenum 580.

In the exemplary embodiment, as shown in FIG. 16, a top take-off snap-in fitting 240 includes a rectangular member 242, a throat portion 248 and a flange portion 252.

The rectangular member 242 includes a male end connection 244. The male end connection 244 is 1″×⅛″.

The throat portion 248 includes a curvature member. The throat portion 248 is coupled to the rectangular member 242. The throat portion 248 further includes a rectangular opening 250 opposing the male end connection 244.

The flange portion 252 is an edging extending around a perimeter of the rectangular opening 250. The flange portion 252 has a perimeter greater than the perimeter of the rectangular opening 250.

The flange portion 252 further includes a plurality of snap in fittings 254. Each of the snap fittings 254 includes a base member 256 and contact member 258. The base member 256 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The contact member 258 is an elongated triangular shape, specifically, the contact member 258 abuts and tapers away from the base member 256. One skilled in the art would understand the applicant's design is not the exclusive embodiment. Each snap in fitting 254 is ⅝″ L×1″ W×⅛″. Additionally, each snap in fitting 254 is spaced apart 1″ on the perimeter of the flange portion 252.

The top take-off snap-in fitting 240 further includes a seal portion 260 positioned against the flange portion 252. The seal portion 260 is ½″ wide×¼″ thick. The seal portion 260 is composed of foam. The top take-off snap-in fitting 240 is implemented for adding supply/return lines from the top of the trunk 72. In the exemplary embodiment, as shown in FIG. 17, side take-off snap fitting 270 as shown includes a rectangular member 272 and a flange member 276.

The rectangular member 272 includes a male end connection 274. The male end connection 274 is positioned at a top portion of the rectangular member 272. The male end connection 274 extends beyond the rectangular member 272.

In the exemplary embodiment, the flange member 276 is an edging positioned at an opposing end from the male connection member 274. The flange member 276 extends beyond a perimeter of the rectangular member 272.

The flange portion 276 further includes a plurality of snap in fittings 278. Each of the snap fittings 278 includes a base member 280 and contact member 282. The base member 280 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The contact member 282 is an elongated triangular shape, specifically, the contact member 282 abuts and tapers away from the base member 280. One skilled in the art would understand the applicant's design is not the exclusive embodiment. Each snap in fitting 278 is ⅝″ L×1″ W×⅛″. Additionally, each snap in fitting 278 is spaced apart 1″ on the perimeter of the flange member 276.

The side take-off snap fitting 270 further includes seal 284 positioned abutting the flange member 276. The side take-off snap fitting 270 is implemented for adding supply/return lines from the side of the trunk 72.

In the exemplary embodiment and as shown in FIG. 18, a top take-off snap-in fitting 290 includes a rectangular member 292. The rectangular member 292 further includes a plurality of sloped sides 294 extending upwards from the rectangular member 292. The rectangular member 292 further includes a circular opening 296 formed by the plurality of sloped sides 294.

The rectangular member 292 further includes a flange 298 coupled to a bottom portion of the rectangular member 292. The flange 298 extends beyond the edges of the rectangular member 292.

The flange 298 further includes a plurality of snap in fittings 302. Each of the snap fittings 302 includes a base member 304 and contact member 306. The base member 304 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The contact member 306 is an elongated triangular shape, specifically, the contact member 306 abuts and tapers away from the base member 304. One skilled in the art would understand the applicant's design is not the exclusive embodiment. Each snap in fitting 302 is ⅝″ L×1″ W×⅛″. Additionally, each snap in fitting 302 is spaced apart 1″ on the perimeter of the flange 298.

The top take-off snap-in fitting 290 further includes an elbow joint 308. The elbow joint 308 is a curvature member. The elbow joint 308 further includes an opening 310 positioned at both ends of the elbow joint 308. The elbow joint 308 further includes a male end connection 312 extending around and from a perimeter of the opening 310 of the elbow joint 308.

In the exemplary embodiment, the top take-off snap-in fitting 290 further includes a rectangular foam seal 312 positioned abutting the rectangular member 292.

In the exemplary embodiment, as shown in FIG. 19, a side take-off snap-in fitting 320 includes a rectangular member 322, a tapering member 332 and a cylindrical member 336.

The rectangular member 322 is positioned at a bottom portion of the side take-off snap-in fitting 320. The rectangular member 322 further includes a flange 324 coupled to a bottom portion of the rectangular member 322. The flange 324 extends beyond the edges of the rectangular member 322.

The flange portion 324 further includes a plurality of snap in fittings 326. Each of the snap in fittings 326 includes a base member 328 and contact member 330. The base member 328 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The contact member 330 is an elongated triangular shape, specifically, the contact member 330 abuts and tapers away from the base member 330. One skilled in the art would understand the applicant's design is not the exclusive embodiment. Each snap in fitting 302 is ⅝″ L×1″ W×⅛″. Additionally, each snap in fitting 326 is spaced apart 1″ on the perimeter of the flange 324.

In the exemplary embodiment, the side take-off snap-in fittings 320 further includes a tapering member 332 coupled to the rectangular member 322. The tapering member 332 includes a plurality of sloped sides 334 extending away from the rectangular member 322.

In the exemplary embodiment, the side take-off snap-in fittings 320 further includes a cylindrical member 336 coupled to the plurality of sloped sides 334 opposing the rectangular member 322.

The cylindrical member 336 further includes a male end connection portion 338. The male end connection portion 338 is a cylindrical opening extending from the cylindrical member 336. The side take-off snap-in fittings 320 are implemented for adding round supply/return lines from the side of the trunk 72.

In the exemplary embodiment, the side take-off snap-in fittings 320 further includes a foam seal 340 positioned abutting and within the flange 324.

In the exemplary embodiment, as shown in FIGS. 20-21, a supply/return line 350 is shown.

The supply/return line 350 is an ovular elongated member. The oval supply/return line 350 includes a female end connection 352 positioned at a first end 354 of the oval supply/return line 350. In an opposing second end 356, the oval supply/return line 350 includes a male end connection 358. The oval supply/return line 350 are primarily used as wall ducting and circulate hot and cold air flow into specific areas of the structure and cycle air back through the return plenum 580.

In the exemplary embodiment and illustrated in FIG. 22, an oval coupler 360 as shown is implemented for oval supply/return lines 350 that need to be reconnected. The oval coupler 360 includes a pair of female end connections 362.

In the exemplary embodiment and illustrated in FIG. 23, a ceiling return box 370 is shown.

The ceiling return box 370 is a five-sided rectangular member. The ceiling return box 370 further includes an opening 372 on a bottom portion of the five-sided rectangular member. The ceiling return box 370 further includes a flange 374 extending on each side of the opening on the bottom portion of the ceiling return box 370. The ceiling return box 370 further includes a rough cut opening 376 on a top portion of the ceiling return box 370. One skilled in the art would understand the dimension of the ceiling return box with the flange 374 depends on the dimensions of the overall assembly.

In the alternate exemplary embodiment and illustrated in FIG. 24, a wall return box 380 is shown as a five-sided rectangular member. The wall return box 380 further includes an opening 382 on a bottom portion of the five-sided rectangular member. The wall return box 382 further includes a flange 384 extending on each side of the opening 382 on the bottom portion of the five-sided rectangular member. The wall return box 380 further includes a rough cut opening 376 on a top portion of the five-sided rectangular member. The wall return box 380 returns air through grilled ducts which pull air back into the HVAC system for heating or cooling.

In the exemplary embodiment and illustrated in FIG. 25, a return panning 390 is shown. The return panning 390 is a rectangular member. The return panning 390 further includes a male end underlap 392 positioned at one end of the return panning 390. The return panning 390 further includes a female end overlap 394 at an opposing end from the male end underlap 392. The return panning 390 returns air back to the HVAC system to circulate warm and cool air.

In the exemplary embodiment and illustrated in FIG. 26, a round to square straight boot 400 is shown. The round to square straight boot 400 includes a circular member 402, a tapering member 408 and a rectangular member 422.

The circular member 402 includes a passageway 404 extending through. The circular member 402 further includes a male end connection 406. The male end connection 406 is coupled and extends from a perimeter opening of the circular member 402.

The tapering member 408 includes a plurality of sloped sides 410 tapering away from the circular member 402.

The round to square straight boot 400 further includes a rectangular member 412. The rectangular member 412 includes a female end connection 414. The female end connection 414 extends around an entire interior perimeter of an opening of the rectangular member 412. The round to square straight boot 400 is a type of register boot located at the end of a supply line where hot or cool air is released into a structure space.

In the exemplary embodiment and illustrated in FIG. 27, a square to round straight boot 420 is shown. The square to round straight boot 420 includes a rectangular member 422, a slot member 426 and a circular member 428.

The rectangular member 422 is an elongated passageway. The rectangular member 422 further includes a female end connection 424 positioned entirely within a perimeter opening of the rectangular member 422.

The slot member 426 is a pair of tapering sides extending away from the rectangular member 422.

The circular member 428 is a passageway coupled to the slot member 426. The circular member 428 further includes a male end connection 430. The male end connection 430 extends away and around an opening of the circular member 428. The square to round straight boot is a type of register boot located at the end of a supply line where hot or cool air is released into a structure space.

In the exemplary embodiment and illustrated in FIG. 28, a floor ell boot 440 is shown. The floor ell boot 440 includes a circular member 442, a tapering member 446 and a coupling box 450.

The circular member 442 is a passageway. The circular member 442 further includes a female end connection 444. The female end connection 444 is positioned entirely within the circular member 442.

The tapering member 446 includes a plurality of sloped sides 448 extending away from the circular member 442. The tapering member 446 couples to the circular member 442.

The coupling box 450 is a rectangular member. The coupling box 450 includes a plurality of coupling passageways 452. The coupling box 450 attaches to the tapering member 446.

The floor ell boot 440 is a type of register boot located at the end of a supply line where hot or cool air is released into a structure space. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment and illustrated in FIG. 29, an end boot 460 is shown. The end boot 460 includes a rectangular member 462 and a cylindrical member 468.

The rectangular member 462 includes a passageway 464 extending through the rectangular member 462. The rectangular member 462 further includes a flange portion 466. The flange portion 466 is an edging extending around a perimeter opening of the rectangular member 462.

The cylindrical member 468 extends from an upper area of the rectangular member 462. The cylindrical member 468 tapers above the rectangular member 462. The cylindrical member 470 includes a female connection 470 extending entirely within a perimeter opening of the cylindrical member 468. The end boot 460 is a type of register boot located at the end of a supply line where hot or cool air is released into a structure space. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment and illustrated in FIG. 30, an end boot 480 is shown. The end boot 480 includes a rectangular member 482 and a cylindrical member 486.

The rectangular member 482 includes a plurality of passageways 484 on an upper area of the rectangular member 482.

The cylindrical member 486 extends from a lower area of the rectangular member 482. The cylindrical member 486 tapers below the rectangular member 482. The cylindrical member 486 includes a female connection 488 extending entirely within a perimeter opening of the cylindrical member 486. The end boot 480 is a type of register boot located at the end of a supply line where hot or cool air is released into a structure space. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment and illustrated in FIG. 31, an elbow joint 490 is shown. The elbow joint 490 includes a male end connection 492 and a female end connection 494. The male end connection 492 and the female end connection 494 are positioned at opposite openings of the elbow joint 490. The male end connection 492 extends beyond and around an opening of the elbow joint 490. The female end connection 494 is positioned entirely within a second opening of the elbow joint 490. The elbow joint 490 as shown forms a 90 degree angle. The elbow joint is implemented to make turns in runs of round supply/return lines or flex duct.

In the exemplary embodiment and illustrated in FIG. 32, a step connector 500 is shown. The step connector is L-shaped.

The step connector 500 includes a male end connection 502 and a female end connection 504. The male end connection 502 is a passageway. The male end connection 502 extends beyond an opening of the step connector 500. The female end connection 504 is a passageway. The female end connection 504 is positioned entirely within a second opening of the step connector 500.

In another embodiment of the step connector 500 as shown in FIG. 33, the step connector 500 further includes a pair of hanger flanges 506 positioned on an outer edge of the step connector 500. The step connector forms a 90 degree angle. The step connector 500 is used to make turns in runs of trunk lines.

In the exemplary embodiment and illustrated in FIGS. 34-35, a round up connector 520 is shown. The round up connector 520 is a curvature member. The round up connector 520 further includes a male end connector 522 and a female end connector 524. The male end connector 522 extends away from an opening of the round up connector 520. The female end connector 524 is positioned entirely within a second opening of the round up connector 520. The round up connector 520 is implemented to make turns in runs of rectangle supply/return lines.

In the exemplary embodiment as shown in FIGS. 36-37, a round to oval connector 530 is shown.

The round to oval connector 530 is an elbow shaped member. A female connector 532 is positioned within a circular passageway 534. A male connector 536 extends from an ovular passageway 538. The male connector 536 is positioned at an opposite end of the elbow shaped member 530. The round to oval connector 530 is implemented to make turns in runs of round to oval supply/return lines, generally used in walls.

In the exemplary embodiment and illustrated in FIG. 38, an adjustable round return/supply line bracket 540 is a slidable elongated member. The adjustable round return/supply line bracket 540 further includes a pair of side edges 542. The pair of side edges 542 are elongated members extending away from the slidable elongated member. The adjustable round return/supply line bracket 540 further includes a pair of passageways 544 extending through each side edge 542.

In the exemplary embodiment and illustrated in FIG. 39, a shop vac clean-out connector 550 is shown. The shop vac clean-out connector 550 is a conical shaped member. The shop vac clean-out connector 550 further includes a clean out receiver 552. The clean out receiver 552 is a threaded member. The shop vac clean-out connector 550 further includes a hose receiver 554. The hose receiver 554 is barbed on an inner portion of the hose receiver 554. The shop vac clean-out connector 550 is implemented to handily clean out duct systems of any dust and debris.

In the exemplary embodiment and illustrated in FIGS. 40-41, a trunk line connector 560 is shown. The trunk line connector 560 is a 45 degree connector. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The trunk line connector 560 further includes a male end connector 562. The male end connector 562 is positioned and extends away from an opening of the trunk line connector 560. The trunk line connector 560 further includes a female end connector 564 positioned entirely within a second opening of the trunk line connector 560.

In the exemplary embodiment and illustrated in FIG. 42, a joining collar 570 is shown. The joining collar 570 is a sleeve member. The joining collar 570 is composed of canvas material. The joining collar 570 will be used when adding on new PVC Designed HVAC Duct system to an existing metal duct system. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

In the exemplary embodiment and illustrated in FIGS. 43-44, a return plenum 580 is shown. The return plenum 580 is a curvature member 582. The curvature member 582 includes a 90 degree angle. The return plenum 580 further includes a female end connector 584. The return plenum 580 further incudes a clean out plug 586 positioned adjacent the female end connector 584. The return plenum 580 further includes a roughcut opening 588 positioned at an opposite end from the female end connector 584. The return plenum 580 connects the return ducts in the ductwork back to the HVAC system since air filters are usually positioned in the return plenum 580.

In the exemplary embodiment and illustrated in FIGS. 43-44, a return starting collar 590 is shown. The return starting collar 590 is a rectangular member. The return starting collar 590 further includes a slot 592. The slot 592 is positioned in the central region of the return starting collar 590. The slot 592 receives an air filter. The return starting collar 590 further includes a flange 594. The flange 594 is an edging positioned around a perimeter opening of the return starting collar 590. The return starting collar 590 is for direct application of the return plenum 580 to the HVAC system.

In another embodiment, the flange 594 includes a plurality of snap fittings 596. Each of the snap fittings 596 includes a base member 598 and contact member 600. The base member 598 is an elongated rectangle. One skilled in the art would understand the applicant's design is not the exclusive embodiment. The base member 598 extends from an outer surface of an opening of the return starting collar 590. The contact member 600 is an elongated triangular shape, specifically, the contact member 600 abuts and tapers away from the base member 598. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

A return seal 602 is a rectangular member. The return seal 602 is positioned abutting the flange 594. The return seal 602 is composed of foam. The return starting collar 590 will be used for an airtight connection to connect the return plenum 580 directly to the HVAC system.

In the exemplary embodiment and illustrated in FIG. 45, a return box 610 is shown. The return box 610 is a rectangular structure. Specifically, the return box 610 is a five sided box. The return box includes an air handler unit opening 612 positioned on a central region of a face of the return box 610.

A plurality of flanges 614 are positioned around the air handler unit opening 612. The return box 610 further includes a return plenum rough-cut opening 616. The return box 610 further includes a clean out opening 618. The return box 610 further includes a return box foam seal. The return box foam seal 620 is a rectangular member.

The return box 610 returns air through grilled ducts which pulls air back into the HVAC system for heating or cooling. The return box cradles an air handler unit. One skilled in the art would understand the applicant's design is not the exclusive embodiment.

The starting collar 20 couples to the furnace F and the supply plenum 10. The starting collar 20 couples to the furnace F by positioning the first layer 22 and the second layer 24 of the starting collar 20 against the furnace F. The rough cut out passageway 14 of the supply plenum 10 fastens to the male end connection 40 of the starting collar 20. The transition collar 50 couples to the supply plenum 10 by connecting the rough cut out passageway 14 to the snap fittings 34 of the transition collar 50. A first trunk 72 couples to the supply plenum 10 by the male end connection 40, fastening the male end connection 40 to the female end connection 82 of the first trunk 72.

A second trunk 72 couples to the first trunk 72. Specifically, the male end connection 80 of the first trunk 72 slidably connects to the female end connection 82 of the second trunk 72. The male end connection 80 abuts and locks with the female end connection 82. The operator couples each trunk 72 to a ceiling by the plurality of hangers coupling to the hanger flanges 74 of each trunk 72.

An operator may use the central trunk line reducer 90 to reduce a size of the trunk line 70 and maintain air flow as the trunk line 70 increases in length. When the operator utilizes air flow in two different directions, the operator will couple the “T” trunk line 110. When the operator has applied the proper trunk line 70, the operator will couple the male end connection 80 of the trunk 72 with the female end connection 82 of the trunk line end cap 130. One of the snap-in fittings is positioned at the top of the return plenum 580 and coupled to a female end connector 584.

The return seal 602 of the snap fitting 596 is abutted against the return box foam seal 620 and couples to the return plenum rough-cut opening 616.

A duct from the plurality of ducts couples to the return plenum 580 by the female end connector 584 of the return plenum 580. The roughcut opening 588 of the return plenum 580 is coupled to the return starting collar 590. The return starting collar 590 is coupled to the furnace or HVAC system.

It should be noted that various changes and modifications to the embodiments described herein will be apparent to those skilled in the art. Such changes and modifications may be made without departing from the spirit and scope of the present invention and without diminishing its intended advantages. For example, various embodiments of the systems and methods may be provided based on various combinations of the features and functions from the subject matter provided herein.