ClassID:

158312

F24F2011/0004 - CPC Classification

Classification description:

Control or safety arrangements for ventilation for admittance of outside air to create overpressure in a room

Recent Application in this class:
#1
20260110448
2026-04-23

WORK SPACE FORMING EQUIPMENT, WORK METHOD, AND MANAGEMENT SPACE FACILITY

#2
20250224126
2025-07-10

INDOOR AIR CLEANING SYSTEM

#3
20240230124
2024-07-11

SYSTEM AND CONTROLLER FOR ADJUSTING AN AMOUNT OF EXTERIOR AIR SUPPLIED TO A PREMISE

#4
20230375201
2023-11-23

METHOD AND SYSTEM FOR CONTROLLING A VENTILATION SYSTEM TO PREVENT INFILTRATION OF POLLUTANTS THROUGH A BUILDING ENVELOPE

#5
20230032285
2023-02-02

FACILITY AND IMPLEMENTATION METHOD FOR MANUFACTURING OF ARTICLE USING SAID FACILITY

#6
20220404046
2022-12-22

System and method for access control using differential air pressure

#7
20200292187
2020-09-17

System and method for access control using differential air pressure

#8
20200236871
2020-07-30

Method and system for the air conditioning of closed environments, in particular for vertical farms

#9
20190323713
2019-10-24

BUILDING STRUCTURE FOR CRAWL SPACE MOUNTED APPARATUS

#10
20190314653
2019-10-17

Smoke ventilation

#11
20190086116
2019-03-21

Building pressure control

#12
20180326665
2018-11-15

Clean chamber technology for 3D printers and bioprinters

#13
20180178617
2018-06-28

Airflow control system of a work vehicle

#14
20170118874
2017-04-27

Cooling systems for small equipment rooms and methods of cooling small equipment rooms

#15
20140248833
2014-09-04

Smoke ventilation

#16
20140099872
2014-04-10

Ventilation system, ventilation method, ventilation control device, and non-transitory computer-readable recording medium

#17
20130324026
2013-12-05

Clean room control system and method

#18
20130305589
2013-11-21

Method of protecting buildings from termite attack

#19
20130040548
2013-02-14

Fan flow synchronizer

#20
20120255720
2012-10-11

Temperature Controller for Unit

#21
20120222346
2012-09-06

Method of protecting buildings from termite attack

#22
20120090860
2012-04-19

Device for setting the leakage rate for a leakage at a gap-like opening

#23
20120071079
2012-03-22

Positive air pressure isolation system

#24
20120058717
2012-03-08

Overpressure-based System to protect vertical evacuation routes against smoke infiltration

#25
20120055561
2012-03-08

Method to control pressures in vertical escape routes

#26
20120055104
2012-03-08

Solar attic pressurizer

#27
20120028560
2012-02-02

Fresh Air Recovery System

#28
20110300790
2011-12-08

Control device for ventilation and air conditioning systems

#29
20110179732
2011-07-28

High rise building with a stairwell and a intake air shaft

#30
20110100617
2011-05-05

AIR-CONDITIONING APPARATUS

#31
20110065372
2011-03-17

Recreation room and method of adjusting the room atmosphere

#32
20100061865
2010-03-11

SYSTEM AND/OR METHOD FOR MONITORING AND/OR CONTROLLING THE RELATIVE INTERNAL AIR PRESSURE OF A FACILITY

#33
20100044447
2010-02-25

Temperature control for positive pressure air purification unit

#34
20100041328
2010-02-18

Positive air pressure isolation system

#35
20100029195
2010-02-04

AIR HANDLING UNIT USING MULTIPLE FANS

#36
20090294116
2009-12-03

Device for minimizing an undesired passage of fluid from a first sector to a second sector as well as a heat exchanger system comprising such a device

#37
20090023376
2009-01-22

Damper for positive pressure air cleaner

#38
20080250800
2008-10-16

Total room air purification system with air conditioning, filtration and ventilation

#39
20080248738
2008-10-09

Flow controlling assembly and method

#40
20080233860
2008-09-25

Air handling system with self balancing air entrance door

#41
20080113608
2008-05-15

System, combination and method for controlling airflow in convective treatment

#42
20080113606
2008-05-15

Crawlspace air apparatus

#43
20080066758
2008-03-20

Physical fitness system

#44
20070275651
2007-11-29

Positive air pressure isolation system

#45
20070253831
2007-11-01

Method and apparatus for maintaining air characteristics in an air ventilated facility using fan filter units

#46
20070207724
2007-09-06

Air pressure control system and method

#47
20070207722
2007-09-06

Fresh Air Intake System

#48
20070066205
2007-03-22

Clean room unit

#49
20060286921
2006-12-21

Safe rooms and other such spaces and air processing systems for such safe rooms and spaces

#50
20060199518
2006-09-07

Recreation room and method for controlling the atmosphere in the room

#51
20060189270
2006-08-24

Pressurizing buildings to improve drying

#52
20060177356
2006-08-10

Positive pressure air purification and conditioning system

#53
20060151013
2006-07-13

Clean assembling module device, produciton system formed with the module, industrial robot, and pollution spred prevention system

#54
20060021375
2006-02-02

Environmental control unit for hospital room

#55
20050211415
2005-09-29

Integrated air processing devices and isolation containment systems using such devices