Unidirectional vent
AssigneeLeonard W. Suroff
InventorStanley Kolt
Life of this patent
Estimating the term…
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.
Claims14
An energy saving unidirectional vent for permitting the passage of air from one defined space to another comprising:
- (a) frame means for mounting over an opening communicating between said one defined space to said another defined space having a passageway disposed therethrough;
- (b) perforated flap means movably mounted to said frame means, said flap means being movable from a closed position substantially blocking said passageway to an open position permitting the free flow of air therethrough, said flap means assuming said closed position when at rest;
- (c) membrane means affixed along one edge of said flap means for preventing the flow of air from said another defined space to said one defined space when said flap means is in said closed position and permitting increased air flow from said one defined space to said another defined space under certain conditions;
- and
- (d) adjustment means coupled between said flap means and frame means for adjusting the amount of opening of said flap means.
An energy saving unidirectional vent for permitting the passage of air from one defined space to another comprising:
- (a) frame means for mounting over an opening communicating between said one defined space to said another defined space having a passageway disposed therethrough;
- (b) perforated flap means movably mounted to said frame means, said flap means being movable from a closed position substantially blocking said passageway to an open position permitting the free flow of air therethrough, said flap means assuming said closed position when at rest;
- (c) membrane means affixed along one edge of said flap means for preventing the flow of air from said another defined space to said one defined space when said flap means is in said closed position and permitting increased air flow from said one defined space to said another defined space under certain conditions, said membrane means being a relatively light weight, flexible material capable of responding to lightly moving air currents;
- and
- (d) adjustment means coupled between said flap means and frame means for adjusting the amount of opening of said flap means.
Dependencies are inferred from the claim text.