System powered damper blade assembly for use in an air condition

Details System powered damper blade assembly for use in an air condition System powered damper blade assembly for use in an air condition

1977-12-07

1980-02-05

Staab, Lawrence J.

Automatic temperature and humidity regulation

Ventilator type

137468, 137497, F24F 700

Patent

active

041868765

ABSTRACT:
An air conditioning system having conditioned air supplied through at least one duct includes a damper blade assembly for varying the volume of conditioned air flow through said duct. A first inflatable bellows is connected to the damper blade assembly to vary the position thereof in said duct. The bellows is inflated in response to changes in the supply pressure of the conditioned air to maintain a substantially constant volume conditioned air flow downstream of said damper blade assembly. A second inflatable bellows is connected to the damper blade assembly for further varying the position thereof in the duct. The second inflatable bellows is inflated in response to the temperature of the air in the enclosure whereby the quantity of air discharged thereinto is reduced as the temperature of the enclosure approaches a predetermined level.

REFERENCES:
patent: 1630755 (1927-05-01), Milker
patent: 3143292 (1964-08-01), Church et al.
patent: 3554112 (1971-01-01), Herb
patent: 3719321 (1973-03-01), McNabney
patent: 3806027 (1974-04-01), Ginn et al.
patent: 3817452 (1974-06-01), Dean
patent: 3840177 (1974-10-01), Osheroff
patent: 3845783 (1974-11-01), De Lepeleire
patent: 3945565 (1976-03-01), Lynch et al.
patent: 4017025 (1977-04-01), Dravnieks et al.
patent: 4040564 (1977-08-01), Waeldner et al.

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