Damping arrangement

Details Damping arrangement Damping arrangement

1978-12-19

1981-03-10

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

With fluid regulated in response to inertia of valve member

137 38, F16F 934

Patent

active

042548497

ABSTRACT:
A damping arrangement for the tub assembly of a washing machine and the like in which a piston mounted on a piston rod in the cavity of a cylinder axially separates two compartments of the cavity and is formed with restricted throttling passages connecting the compartments. The piston may be by-passed by a bore in the piston rod having respective orifices in the two compartments, one orifice being capable of being blocked by an inert mass mounted on the piston rod in one of the compartments for oscillation at the end of a spring. Movement of the inert mass away from a rest position toward which it is normally biased by the spring is limited by a secondary hydraulic damper to prevent operating noise and reduce premature wear.

REFERENCES:
patent: 1818141 (1931-08-01), Lang
patent: 2060532 (1936-11-01), Rossman
patent: 2083272 (1937-06-01), McCann
patent: 2329803 (1943-09-01), Whisler, Jr.
patent: 3319741 (1967-05-01), Hauck
patent: 3447644 (1969-06-01), Duckett
patent: 3963227 (1976-06-01), Molders
patent: 4126302 (1978-11-01), Curnutt

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