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Class Information
Number: 454/253
Name: Ventilation > Having both inlet and outlet airways > With air pump means > For outlet airway
Description: Subject matter wherein the air moving means directly contacts air to force it out of the ventilated space.










Patents under this class:

Patent Number Title Of Patent Date Issued
7992552 Cooking device Aug. 9, 2011
6945058 Cooling of data centers Sep. 20, 2005
6834512 Cooling of data centers Dec. 28, 2004
6832489 Cooling of data centers Dec. 21, 2004
6832490 Cooling of data centers Dec. 21, 2004
6491580 Individual room duct and ventilation system for livestock production building Dec. 10, 2002
6484524 System of and a method of cooling an interior of a room provided with a wall air conditioning unit Nov. 26, 2002
6319115 Air cycle houses and house ventilation system Nov. 20, 2001
6287191 Combination bath fan, register box, air conditioning and heating boot Sep. 11, 2001
6109049 System for cooling outdoor golf practice tees Aug. 29, 2000
6021953 Year-round air conditioning apparatus and method Feb. 8, 2000
5989119 Automatic power flow fresh air inlet Nov. 23, 1999
5964659 Ventilated enclosure for gas cylinders and manifolds Oct. 12, 1999
5924921 Apparatus for storing volatile chemicals Jul. 20, 1999
5779537 Deposit cupboard for solvents, combustible liquids and the like Jul. 14, 1998
5775988 Method and means for improved sidewall ventilation Jul. 7, 1998
5746653 Air distributor or collector May. 5, 1998
5676596 Controller for animal enclosure ventilation system Oct. 14, 1997
5664997 Apparel and equipment locker incorporating contamination and toxic materials extraction and evacuation system Sep. 9, 1997
5619862 Multi-channel motor vehicle ventilation apparatus Apr. 15, 1997
5472466 Smoker's module Dec. 5, 1995
5435377 Ventilator with air-to-air heat exchanger and pressure responsive damper Jul. 25, 1995
5360372 Control system for doors of a negative air pressure enclosure Nov. 1, 1994
5302151 Variable air flow eddy control Apr. 12, 1994
5236391 Flush-mounted air intake Aug. 17, 1993
5206173 Air hood Apr. 27, 1993
5187949 Air conditioner having a selectable air discharge Feb. 23, 1993
5176566 Variable air flow eddy control Jan. 5, 1993
5173094 Positive-pressure filter arrangement for hazardous gases Dec. 22, 1992
5145460 Rolling ramp gasket assembly Sep. 8, 1992
5076151 Burial monument vault air circulation and filtration system Dec. 31, 1991
4988237 Soil gas reduction system Jan. 29, 1991
4843786 Enclosure conditioned housing system Jul. 4, 1989
4823679 Building ventilation system with air inlet flap control Apr. 25, 1989
4706551 Enclosure Nov. 17, 1987
4671350 Ventilation and heat exchanging system for premises housing animals, in particular for poultry farming Jun. 9, 1987
4498373 Air inlet system Feb. 12, 1985
4316405 Greenhouse and solarium structurers and related method Feb. 23, 1982
4292927 Swine shelter ventilating system Oct. 6, 1981
4201121 Method of venting heat from homes May. 6, 1980
4091719 Welding booths May. 30, 1978
4034572 Refrigerated front and rear loading dairy handling case Jul. 12, 1977











 
 
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