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Class Information
Number: 236/49.1
Name: Automatic temperature and humidity regulation > Ventilator type
Description: Device comprising particular temperature responsive means for operating a device which controls air flow to, from, or within a ventilated space.










Sub-classes under this class:

Class Number Class Name Patents
236/49.3 Electrically actuated 846
236/49.5 Mechanical linkage actuated 129
236/49.4 Pneumatically actuated 110
236/49.2 Responsive to fire or smoke 22


Patents under this class:
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Patent Number Title Of Patent Date Issued
8676545 Methods and apparatus to determine air duct system configurations Mar. 18, 2014
8646287 Airflow regulating device Feb. 11, 2014
8611072 Thermal actuator for configurable imaging systems Dec. 17, 2013
8464961 Electronic apparatus Jun. 18, 2013
8385066 Flow control device and cooled electronic system employing the same Feb. 26, 2013
8258726 Battery cooling system for vehicle Sep. 4, 2012
8249731 Smart air ventilation system Aug. 21, 2012
8118236 Basement ventilator Feb. 21, 2012
8042352 Control method and device for an air conditioning economizer system Oct. 25, 2011
8042784 Mounting frame for portable equipment Oct. 25, 2011
8036778 Air-conditioning system Oct. 11, 2011
7895019 Fire suppression system design tool Feb. 22, 2011
7837127 Ventilation system Nov. 23, 2010
7828224 Air conditioning diffuser having function of automatically changing air supply direction Nov. 9, 2010
7789130 System air fans in integrated control apparatus Sep. 7, 2010
7775451 Variable flow mixing valve Aug. 17, 2010
7644869 Auxiliary stage control of multistage thermostats Jan. 12, 2010
7578734 Unit ventilator having a splitter plate and a pivoting damper blade assembly Aug. 25, 2009
7464560 Air conditioner for automobile Dec. 16, 2008
7341201 Fully articulated and comprehensive air and fluid distribution, metering, and control method and apparatus for primary movers, heat exchangers, and terminal flow devices Mar. 11, 2008
6983889 Forced-air zone climate control system for existing residential houses Jan. 10, 2006
6976911 Method and apparatus for filtering airborne contaminants Dec. 20, 2005
6938626 Method and apparatus for wet-cleaning substrate Sep. 6, 2005
6916239 Air quality control system based on occupancy Jul. 12, 2005
6844691 Ventilator having an abnormal operation indication device Jan. 18, 2005
6592449 Smart fan modules and system Jul. 15, 2003
6496110 Rapid fire emergency response for minimizing human casualties within a facility Dec. 17, 2002
6456023 Method and apparatus to control a variable speed motor Sep. 24, 2002
5771879 Heated makeup air system for a commercial kitchen Jun. 30, 1998
5524556 Induced draft fan control for use with gas furnaces Jun. 11, 1996
5417275 Air circulator control apparatus and method May. 23, 1995
5364025 Combination motor cooler and air aspirator for climate control system Nov. 15, 1994
5304094 Method of mixing cold introduced air with warmer room air Apr. 19, 1994
5236124 Apparatus for automatically ventilating buildings such as winter gardens, sun lounges, and greenhouses Aug. 17, 1993
5084659 Method of operation of air cleaner Jan. 28, 1992
4931948 Method and system for controlling a single zone HVAC supplying multiple zones Jun. 5, 1990
4919327 Air-processing installation designed for the ventilation and air-conditioning of several rooms and air-processing module designed for an installation of this type Apr. 24, 1990
4886110 HVAC zone control system Dec. 12, 1989
4860231 Calibration technique for variable speed motors Aug. 22, 1989
4858677 Automobile air-conditioning apparatus with air blower control Aug. 22, 1989
4856710 Dual air conditioner for a vehicle Aug. 15, 1989
4841733 Dri-Pc humidity and temperature controller Jun. 27, 1989
4829882 Crawl space ventilation system May. 16, 1989
4830275 Temperature control of buildings May. 16, 1989
4830276 Heater system for greenhouses May. 16, 1989
4819716 Advanced zone damper system Apr. 11, 1989
4805835 Methods and apparatus for the control of smoke and fire in buildings Feb. 21, 1989
4750544 Movable heat exchanger system Jun. 14, 1988
4739924 Air volume regulator valve Apr. 26, 1988
4690203 Automotive air-conditioning system adapted to obviate the influence of insolation during blower start-up Sep. 1, 1987

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