Chimney damper

Details Chimney damper Chimney damper

F - Mech Eng,Light,Heat,Weapons

23

L

126/90

F23L 17/10 (2006.01) F23L 11/00 (2006.01) F23L 13/00 (2006.01) F24B 1/189 (2006.01)

Patent

CA 1254089

ABSTRACT A chimney damper attachable to the top of a chimney flue. The damper is characterized by includ- ing a frame mountable to and extending above the chimney flue, a damper plate suspended from the frame, above and in alignment with the flue opening, by an expansion spring, and a vertical stern resiliently at- tached to the damper plate and extending downwardly therefrom. The stem is mounted to the chimney flue so as to allow vertical movement thereof, and is con- nected by a cable to a control mechanism mounted in the fireplace opening. The control mechanism, in co- operation with the expansion spring, allows selective movement of the damper plate toward and away from the flue opening to control or eliminate movement of air through the flue. The resilient mounting of the stem to the damper plate allows the latter to pivot with respect to the stem, promoting a tight seal between the damper plate and the flue.

480602

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