Pneumatic thermostat

Details Pneumatic thermostat Pneumatic thermostat

1975-04-09

1977-02-15

Wayner, William E.

Automatic temperature and humidity regulation

Ventilator type

236 80R, 236 87, F24F 1102

Patent

active

040078736

ABSTRACT:
An improved pneumatic thermostat is provided which is capable of generating from a variable pressure air supply a pressurized air signal indicative of ambient temperature. The thermostat is used in conjunction with an air flow regulator in an air distribution system and utilizes as an air supply a portion of the air flow being distributed. The thermostat utilizes a pressure reducing valve which is referenced to pressure downstream from the air flow regulator, a flapper and nozzle pneumatic mechanism activated by a bi-metallic lever, and a self-aspirating arrangement which insures the bi-metallic lever is continuously sensing the true ambient temperature.

REFERENCES:
patent: 3048012 (1962-08-01), Slatter
patent: 3411711 (1968-11-01), O'Hara et al.
patent: 3434409 (1969-03-01), Fragnito
patent: 3685732 (1972-08-01), Haskins et al.
patent: 3779275 (1973-12-01), Ley et al.
patent: 3817452 (1974-06-01), Dean, Jr.

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