Metal seals for damper blades

Details Metal seals for damper blades Metal seals for damper blades

1984-03-16

1985-10-08

Chambers, A. Michael

Valves and valve actuation

Valve

Removable seat engaging element

137601, 98110, 981212, F24F 1308

Patent

active

045455660

ABSTRACT:
There is disclosed metal seals for damper blades, preferably made of sheet metal, as well as the combination of the blade with the metal seal. The damper blade is pivotably mountable and has longitudinally extending edges which are formed to define a groove spaced from and close to the longitudinal edge of the blade and parallel thereto. The metal seal is constituted by a rolled strip of metal formed to include a pair of opposite sides and a bottom defining a U-shaped portion, a hook portion extends inwardly from the free end of one of said sides toward the bottom of the U, and a sealing flap is reversely bent to extend away from the end of the other of said sides. In use, the U-portion of the seal is forced onto the grooved edge until the free end of the hook portion snaps and locks into the groove.

REFERENCES:
patent: 3530783 (1970-09-01), Alamprese
patent: 3631790 (1972-01-01), Olsen et al.
patent: 3698429 (1972-10-01), Lowe et al.
patent: 4199898 (1980-04-01), Connor
patent: 4325411 (1982-04-01), Squirrell

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