Patent ID: 9624637
Date: 2017-04-18
CPC Classifications: E02B,E04B,E06B,F24F

Claim:
1. A flood vent, comprising: a frame forming a fluid passageway through an opening in a structure; a door pivotally mounted to the frame in the fluid passageway for allowing a fluid to flow through the fluid passageway, the door having an outer perimeter defined by a top edge of the door, a bottom edge of the door, a first side edge of the door, and a second side edge of the door; and one or more pieces of insulation positioned on the top edge of the door, the bottom edge of the door, the first side edge of the door, and the second side edge of the door, the one or more pieces of insulation extending at least substantially along an entire length of the outer perimeter of the door; a first float positioned within the door, the first float having a first float pin that extends horizontally in a first direction from the first float and out of the outer perimeter of the door, the first float pin being configured to be received within a first opening disposed within the frame; a second float positioned within the door, the second float having a second float pin that extends horizontally in a second direction from the second float and out of the outer perimeter of the door, the second float pin being configured to be received within a second opening disposed within the frame, wherein the first float, the first float pin, the second float, and the second float pin are configured to allow the door to pivot to an open position when the first float pin and the second float pin are vertically raised out of the first and second openings; wherein the one or more pieces of insulation comprise a first piece of insulation positioned on the top edge of the door, a second piece of insulation positioned on the bottom edge of the door, a third piece of insulation positioned on the first side edge of the door, and a fourth piece of insulation positioned on the second side edge of the door; wherein the third piece of insulation includes a first insulation opening dimensioned to allow the first float pin to be raised and lowered vertically within the first insulation opening, wherein the first insulation opening is covered by a first flap positioned between the first float pin and an exterior side of the structure, and further covered by a second flap positioned between the first float pin and an interior side of the structure, wherein the first flap and the second flap are configured to at least partially prevent air from passing through the first insulation opening; and wherein the fourth piece of insulation includes a second insulation opening dimensioned to allow the second float pin to be raised and lowered vertically within the second insulation opening, wherein the second insulation opening is covered by a third flap positioned between the second float pin and the exterior side of the structure, and further covered by a fourth flap positioned between the second float pin and the interior side of the structure, wherein the third flap and the fourth flap are configured to at least partially prevent air from passing through the second insulation opening.