Washing machine with snubbers for limiting unbalanced load vibra

Details Washing machine with snubbers for limiting unbalanced load vibra Washing machine with snubbers for limiting unbalanced load vibra

1994-08-01

1996-06-25

Stinson, Frankie L.

Textiles: fluid treating apparatus

Machines

Combined

68131, 248613, 248610, 248634, D06F 3720

Patent

active

055289134

ABSTRACT:
A plurality of snubbers for a washing machine dampens and isolates unbalanced load excursions by using the positive displacement pumping action of air being forced through an orifice in each snubber. One end of each snubber is attached to the washing machine housing and the other end attached to the tub or mounting platform and has a resilient middle portion sidewall defining a cavity that changes in volume to minimize the effects basket excursions caused by unbalanced loads. The snubber sidewall defines an orifice providing a passageway for egress and ingress of air during the change in volume. The orifice meters air so that the resiliency of the snubber is greater for low frequency excursions than for high frequency excursions to thereby function as a damper for low frequency excursions and as a gas spring for high frequency excursions.

REFERENCES:
patent: 2396105 (1946-03-01), Kirby
patent: 2693098 (1954-11-01), Young
patent: 3494471 (1970-02-01), Grippo

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