158412 ⎘
Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening; Ducting arrangements Duct comprising an opening for inspection, e.g. manhole
FIELD-ASSEMBLED AIR CONVEYANCE APPARATUS, SYSTEMS AND METHODS
#2AIR CLEANING SYSTEM
#3PARALLEL FAN POWERED TERMINAL UNIT
#4Air conditioner with modular makeup air assembly
#5Smart system for manhole event suppression system
#6SYSTEMS AND METHODS FOR THE DELIVERY OF FLUIDIC SUBSTANCES IN AN HVAC SYSTEM
#7System and method of ventilating a utility structure
#8Tool for dampening oscillation of a rotating shaft
#9Parallel fan powered terminal unit
#10Air conditioner indoor unit and air conditioner
#11Smart system for manhole event suppression system
#12Frameless hinged access door system
#13Convertible access panel latch assembly
#14Method of identifying burning by monitoring water level and combustion analytes
#15Duct cleaning access door
#16Ventilation system for manhole vault
#17Smart system for manhole event suppression system
#18Systems for circulating air inside a manhole vault
#19Ventilation system for manhole vault
#20ACCESS PORT
#21DOOR ASSEMBLY WITH SCANNING MECHANISM, AND CONTAINMENT SYSTEM WITH SAME
#22MECHANICALLY AUTOMATICALLY OPERATING VOLUMETRIC FLOW REGULATOR
#23Removable access panels and transitions in HVAC systems
#24Duct access door
#25Duct access door
#26MULTI-USE HATCH COVER FOR DUCTS HAVING A CURVED CIRCUMFERENCE
#27Removable vent trap
#28APPARATUS HAVING A CLOSED-OFF WORK CHAMBER WITH IMPROVED CLEANABILITY
#29AIR PURIFYING DEVICE
#30Fire resistant access panel for ducts and air handling equipment
#31Fire resistant access panel for ducts and air handling equipment
#32View port window with optional illumination and alarm system
#33Air handler coil access
#34Exhaust vent assembly with selectively removable top
#35Removable access panel for HVAC closet
#36Field-assembled air conveyance apparatus, systems and methods