Unidirectional vent

Details Unidirectional vent Unidirectional vent

1984-11-21

1986-02-04

Joyce, Harold

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to regulate or vary operation of device

13751215, F16K 2404

Patent

active

045678162

ABSTRACT:
An energy saving unidirectional vent, for permitting the passage of air from one defined space to another includes a frame for mounting over an opening communicating therebetween. The frame having a central passageway disposed therethrough and a flap movably mounted to the frame, so as to be movable from a closed position substantially blocking the passageway, to an open position, permitting the flow of air therethrough. A membrane is affixed to the flap on the surface facing the exhaust defined space. An adjustment device is provided to maintain the flap in a partially open position, if desired.

REFERENCES:
patent: 891967 (1908-06-01), Wiemann
patent: 928481 (1909-07-01), Tehold et al.
patent: 2272960 (1942-02-01), Young, Jr.
patent: 2846935 (1958-08-01), Still
patent: 3120167 (1964-02-01), Kearny
patent: 3382895 (1968-05-01), McCullough
patent: 4108238 (1978-08-01), Vary et al.

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