Flexible seals for sliding blade dampers

Details Flexible seals for sliding blade dampers Flexible seals for sliding blade dampers

1983-07-08

1985-01-01

Rosenthal, Arnold

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

138 943, 126285A, 251174, 251328, F16K 302, F16K 3312

Patent

active

044911440

ABSTRACT:
A sliding blade damper is provided with an improved seal arrangement around the blade withdrawal aperture. Two pairs of flexible sealing strips are used, mounted on either side of the aperture and pressing against the opposite sides of the blade. The unattached edges of the sealing strips are curled and bent away from the blade. The curled edges of one pair of strips hook the curled edges of the other pair, so that when the blade is inserted into the damper, the spreading apart of the first pair of strips serves to partially spread apart the second pair as well. In this manner the leading edge of the blade penetrates between the second pair of strips rather easily, lessening the chances that those strips will be bent or torn.

REFERENCES:
patent: 3504883 (1970-04-01), Beck
patent: 4088146 (1978-05-01), Hagar
patent: 4093245 (1978-06-01), Connor
patent: 4176673 (1979-12-01), Connor
patent: 4334550 (1982-06-01), Connor

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