Wedge sealed damper

Details Wedge sealed damper Wedge sealed damper

1979-11-19

1981-10-13

Nilson, Robert G.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

49 92, 181226, 251305, 251306, F16K 1114

Patent

active

042942837

ABSTRACT:
A damper assembly comprising, in combination, a generally rectangular frame including side, top and bottom members, a plurality of damper blades supported at opposite ends on the side members of the frame for limited rotative movement about axes extending longitudinally and substantially centrally of the blades, each of said blades comprising a resilient sealing strip along at least one edge of said blade, and the ends of the blades being angled in opposite directions above and below the rotative axis of the blades, and cooperating with resilient side sealing strips in the frame, the ends of the blades wedging against the sealing strips as the blades approach closed position, the blades being held in closed position by the wedging action.

REFERENCES:
patent: 2890503 (1959-06-01), Paine
patent: 3084715 (1963-04-01), Scharres
patent: 3381601 (1968-05-01), McCabe
patent: 3484990 (1969-12-01), Kahn
patent: 3540154 (1970-11-01), Claudio
patent: 3547152 (1970-12-01), Hess
patent: 3771559 (1973-11-01), Alley
patent: 3813896 (1974-06-01), Lebahn
patent: 3885347 (1975-05-01), Adachi
patent: 3964377 (1976-06-01), Chapman

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