Pressurized control signal apparatus

Details Pressurized control signal apparatus Pressurized control signal apparatus

1979-06-04

1980-11-04

Makay, Albert J.

Automatic temperature and humidity regulation

Motors

Fluid-operated

236 49, 236 80R, G05D 2308

Patent

active

042315158

ABSTRACT:
Pressurized control signal apparatus is disclosed, which being supplied with air from a source of variable pressure, is operative to produce a control signal essentially independent of variations in the supply pressure. In one aspect of the invention, the control signal is amplified in volume of flow; in another, it is generated in response to temperature. The apparatus is specifically adapted to effect regulation of air flow in a variable air volume (VAV) temperature conditioning system in response to temperature in a conditioned zone, wherein the supply air for the apparatus is derived from a temperature conditioned air distribution duct of the VAV system.

REFERENCES:
patent: 2828076 (1958-03-01), Donahue
patent: 2868459 (1959-01-01), Modes
patent: 2978183 (1961-04-01), Donahue
patent: 3806027 (1974-04-01), Ginn et al.
patent: 3812873 (1974-05-01), Laakaniemi et al.
patent: 3817452 (1974-06-01), Dean, Jr.
patent: 3835876 (1974-09-01), Laakaniemi et al.
patent: 3971396 (1976-07-01), Bentsen
patent: 4007873 (1977-02-01), Duchek
patent: 4017025 (1977-04-01), Draumeks et al.
patent: 4157159 (1979-06-01), Modes

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