Damper with integral support

Details Damper with integral support Damper with integral support

1982-12-06

1985-06-25

Joyce, Harold

Pipe joints or couplings

With casing, lining or protector

Insulated

285 64, F24F 1100

Patent

active

045246785

ABSTRACT:
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.

REFERENCES:
patent: 1612075 (1926-12-01), Tapman, Jr.
patent: 1780406 (1930-11-01), Siebenlist
patent: 3347569 (1967-10-01), Lindgren
patent: 3712649 (1973-01-01), Martin
patent: 3727663 (1973-04-01), McCabe
patent: 3985158 (1976-10-01), Felter
"The Home of Comfort Air Distribution Systems", Char-Gale, Char-Gale Manufacturing Co., Anoka, MN, Jan. 1957, pp. 40 and 41.
"Steel Switch and Outlet Boxes", Pitt Line, Illustrated Catalog 177-R, The Pitt Manufacturing Co., Carnegie, PA, Jan. 1977.

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