Patent ID: 9670717
Date: 2017-06-06
CPC Classifications: E02B,E04B,E04C,E04H,E06B

Claim:
1. A flood vent, the vent comprising: a door pivotable within a frame between a closed position and an open position; a retainer pivotable between a first position and a second position, wherein, in the first position, a first face of the retainer is positioned against a first face of the door, and the retainer is configured to prevent the door from pivoting between the closed position and the open position in a first direction, wherein, in the second position, the first face of the retainer is positioned against the frame, and the retainer is configured to allow the door to pivot between the closed position and the open position in both the first direction and a second direction opposite of the first direction; wherein the retainer is further configured to pivot between the first position and the second position in the second direction in response to a first pressure applied to a second face of the retainer by a flow of a fluid into the frame in the second direction; and wherein the door is configured to pivot between the closed position and the open position in the second direction in response to a second pressure applied to the first face of the door by the flow of the fluid into the frame in the second direction.