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Class Information
Number: 236/49.3
Name: Automatic temperature and humidity regulation > Ventilator type > Electrically actuated
Description: Device wherein the means operates the air flow control device by way of electricity.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Patent Number Title Of Patent Date Issued
4294404 Environmental control system Oct. 13, 1981
4291749 Method and apparatus for controlling compartment temperature of a vehicle Sep. 29, 1981
4284236 Air conditioning system Aug. 18, 1981
4281789 Climate control for an animal barn Aug. 4, 1981
4277019 Electrically-controlled damper Jul. 7, 1981
4272966 Cooling system utilizing outside air Jun. 16, 1981
4272015 Coach climate conditioning blower control Jun. 9, 1981
4270694 Fluid flow regulating systems Jun. 2, 1981
4267967 Two-speed automatic control of supply fans May. 19, 1981
4261509 Pneumatic switch control for pneumatic actuator in air conditioning control systems Apr. 14, 1981
4258877 Damper blade control Mar. 31, 1981
4251026 Attic ventilation control system Feb. 17, 1981
4250716 Auxiliary refrigeration system utilizing atmospheric air Feb. 17, 1981
4245481 Supplemental cold-air supply system Jan. 20, 1981
4244517 Temperature control for variable volume air conditioning system Jan. 13, 1981
4244193 Ambient air cooling system Jan. 13, 1981
4243174 Method and apparatus for control of air flow to a plurality of rooms Jan. 6, 1981
4241871 Apparatus and method for ventilation of animal enclosures Dec. 30, 1980
4240580 Temperature dependent electronic control switch Dec. 23, 1980
4227645 Electronic air conditioner Oct. 14, 1980
4219009 Vented solar panel Aug. 26, 1980
4211362 Smoke detecting timer controlled thermostat Jul. 8, 1980
4210278 Apparatus for supplying conditioned air at a substantially constant temperature and humidity Jul. 1, 1980
4202492 Air circulation system May. 13, 1980
4189094 Control of heating and ventilation systems Feb. 19, 1980
4186564 Air ventilation system Feb. 5, 1980
4184415 Air circulation apparatus Jan. 22, 1980
4183290 Air vent Jan. 15, 1980
4182484 Temperature control for variable volume air conditioning system Jan. 8, 1980
4175401 Refrigeration system Nov. 27, 1979
4126269 Ventilated enclosure Nov. 21, 1978
4115677 Induction heating apparatus Sep. 19, 1978
4113175 Ventilation system for poultry or livestock house Sep. 12, 1978
4107941 Environmental control system Aug. 22, 1978
4086799 Installation tool for tapped plugs May. 2, 1978
4086781 Variable air volume air conditioning system May. 2, 1978
4078721 Greenhouse control device Mar. 14, 1978
4068799 Automatic ventilation regulating device for windows, doors and the like Jan. 17, 1978
4057806 Apparatus for analyzing movements of an animate or inanimate object Nov. 8, 1977
4037783 Reduced outside air capability for unit ventilators Jul. 26, 1977
4023947 Ambient air assist for a refrigerator unit May. 17, 1977
3952947 Heating and ventilation system Apr. 27, 1976
3951336 Ventilation system for livestock housing Apr. 20, 1976
3948154 Air circulation system Apr. 6, 1976
3935898 Device for air-conditioning a number of rooms the heat requirements of which are different and vary preferably with respect to time Feb. 3, 1976
3934797 Individual room temperature control system Jan. 27, 1976

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17










 
 
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