Adjustable water valve of time-controlled type

Valves and valve actuation – Fluid actuated or retarded – Dashpot or fluid controlled retarder or timer

Reexamination Certificate

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Details

C251S339000, C251S900000, C222S509000, C239S583000

Reexamination Certificate

active

07975980

ABSTRACT:
An adjustable water valve of time-controlled type consists of an inner shell and a time-controlled apparatus. The time-controlled apparatus is disposed inside the inner shell and includes an elastomer and a push rod. The elastomer is disposed between a support lid and the push rod. When the push rod is pushed into the inner shell, the water valve is opened, so the user can wash with the water ejected. After certain time, the water pressures are balanced and the elastomer which has been compressed will push the push rod back to its initial position to close the valve.

REFERENCES:
patent: 4187804 (1980-02-01), Von Taschi
patent: 4512551 (1985-04-01), Dalferth
patent: 4940206 (1990-07-01), Chung-Shan
patent: 5065700 (1991-11-01), Cross
patent: 5203376 (1993-04-01), Chung-Shan
patent: 5704397 (1998-01-01), Lu
patent: 6739572 (2004-05-01), Shen et al.
patent: 6942195 (2005-09-01), Kao
patent: 7143997 (2006-12-01), Kao
patent: 2144226 (1993-10-01), None
patent: 2242381 (1996-12-01), None
patent: 2515463 (2002-10-01), None
patent: 2636004 (2004-08-01), None
patent: 1796852 (2006-07-01), None
patent: 2001-146979 (2001-05-01), None
patent: 093138665 (2006-10-01), None

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