Damper in a washing machine and fabricating method of the same

Brakes – Internal-resistance motion retarder

Reexamination Certificate

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Reexamination Certificate

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10514647

ABSTRACT:
A damper for a washing machine includes: a cylinder; a piston body having one end inserted into the cylinder; a first friction member interposed in a contact surface between the piston body and the cylinder; an extension bar extended from an inserted portion of the piston body, the extension bar having a circumferential stopper at the extended portion; a friction ring formed between the circumferential stopper and the first friction member; and a second friction member formed on an outer circumferential surface of the friction ring to contact with an inner surface of the cylinder.

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patent: 2000-0014081 (2000-03-01), None

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