Baths – closets – sinks – and spittoons – Strainer – stopper – plug or closure – Plugs
Reexamination Certificate
2005-11-22
2005-11-22
Huynh, Khoa D. (Department: 3751)
Baths, closets, sinks, and spittoons
Strainer, stopper, plug or closure
Plugs
C004S293000, C004S693000, C004S688000
Reexamination Certificate
active
06966077
ABSTRACT:
Disclosed is an apparatus for opening and shutting a drain valve in a washstand, particularly, an apparatus for automatically opening and shutting a drain valve in a washstand, wherein an automatic opening and shutting means for automatically opening and shutting the drain valve is mounted. The apparatus for automatically opening and shutting the drain valve in the washstand, wherein a drain-pipe is connected to the bottom of a washstand, and the top of the drain-pipe, i.e., a drain-outlet is opened and shut by a drain valve built in the drain-pipe, including a deceleration motor formed at one side of the drain-pipe, a working cam closely contacting the bottom of the drain valve, wherein the working cam is disposed on the axis of the deceleration motor, and a touch button for turning on/off the deceleration motor, wherein the touch button is disposed at a predetermined portion of the washstand.
REFERENCES:
patent: 3965492 (1976-06-01), Hendricks
patent: 4508143 (1985-04-01), Ogasawara
patent: 5048556 (1991-09-01), Grumelot et al.
patent: 10212747 (1998-08-01), None
Huynh Khoa D.
Ladas & Parry LLP
LandOfFree
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