Sealed rotary motion damper

Details Sealed rotary motion damper Sealed rotary motion damper

1983-12-16

1985-04-30

Silverberg, Fred A.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Closure checks

188290, 277 84, E05F 502

Patent

active

045134731

ABSTRACT:
An oil type damper comprises a rotor provided with a toothed wheel and a boss, a base seat provided with a tubular part adapted to be fitted to the boss of the rotor and a shaft adapted to be inserted into the interior of the rotor, and an oil sealer element adapted to be set in position in the interior of the rotor in an unrotatable state relative to the shaft of the base seat. The open edge of the sealer element is folded back and held in fast contact with the inner surface of the boss of the rotor to provide prevention of leakage of the oil interposed between the rotor and the sealer element even when the oil is thermally expanded.

REFERENCES:
patent: 4342135 (1982-08-01), Matsuo et al.
patent: 4426752 (1984-01-01), Nakayama
patent: 4468836 (1984-09-01), Omata

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