Sink stopper

Details Sink stopper Sink stopper

2005-04-19

2005-04-19

Huson, Gregory (Department: 3751)

Baths, closets, sinks, and spittoons

Strainer, stopper, plug or closure

Plugs

C004S286000

Reexamination Certificate

active

06880179

ABSTRACT:
A sink stopper is provided for a sink body having a base formed with a drain hole, and includes a strainer, an operating device and a closure member. The strainer is mounted on the base, and has a perforated strainer wall disposed in the drain hole. The operating device includes a stationary member mounted on the strainer wall, a movable member coupled movably to the stationary member, and a switching unit operable to retain releasably the movable member between first and second positions relative to the stationary member. The closure member is mounted on the movable member, is configured to form a clearance with the base to permit draining of water through the drain hole when the movable member is at the first position, and abuts sealingly against the base to seal the drain hole when the movable member is at the second position.

REFERENCES:
patent: 4369531 (1983-01-01), Swanson
patent: 6219861 (2001-04-01), Chen
patent: 6442770 (2002-09-01), Lin
patent: 6490739 (2002-12-01), Lee
patent: 22233894 (1991-01-01), None

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