Patent ID: 8393827

Claim:
A damper system for storm water treatment vault structures, comprising: a frame attached to an inner wall of a vault structure, the frame having an opening therethrough; tracks attached to the frame about the opening; a door slidably received within the tracks, the door having an open position for allowing water to pass into the vault structure and a closed position for preventing water from passing into the vault structure; and moveable members along one side face of the door for pushing the door against portions of the tracks to seal the door against water intrusion, wherein the moveable members include: a left vertical bar member rotatably mounted by at least one left bar mount only to the door adjacent to a left side of the door; a right vertical bar member rotatably mounted by at least one right bar mount only to the door adjacent to a right side of the door, the left vertical bar member and the right vertical bar member each having a longitudinal axis; a plurality of spaced apart left cams each mounted to extend horizontal and perpendicular to the left vertical bar member, the plurality of spaced apart left cams including an upper left cam mounted adjacent to an upper left corner of the door and a lower left cam mounted adjacent to a lower left corner of the door; and a plurality of spaced apart right cams each mounted to extend horizontal and perpendicular to the right vertical bar member, the plurality of spaced apart right cams including an upper right cam mounted adjacent to an upper right corner of the door and a lower right cam mounted adjacent to a lower right corner of the door, wherein rotating the left vertical bar member and the right vertical bar member rotates the left cams and the right cams in a horizontal axis from an unlocked position where the door is loosely seated in the tracks and a locked position where the door is pushed against one side of the tracks by the left cams and the right cams, wherein the locked position prevents the water from passing about edges of the door.