Damper with integral support

摘要

Attaching structure to secure a fire damper in proper position in a fluid passage in a fire wall comprising an elongated bendable strap of sheet material secured to the damper frame on each side of the damper. The frame is inserted in the passage by the installing workmen and the projecting legs are then bent from their initial positions lying flat against the exterior surface of the damper frame and into embracing relationship with the building studs defining the passage opening. The bent legs of the strap securely anchor the damper in position against forces applied to the damper.