Tap pressure balance valve

Details Tap pressure balance valve Tap pressure balance valve

2008-05-06

2008-05-06

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

C137S315090, C137S607000, C285S101000

Reexamination Certificate

active

07367351

ABSTRACT:
A tap pressure balance valve for maintaining normal operation of the tap has a coil spring and a cut-off washer disposed in a though hole of a secondary case at where in relation to a water outlet provided on a deck of a primary case for the coil spring to push against the cut-off to maintain water tight between the through hole of the secondary case and the water outlet of the primary case so to avoid seepage from the interface where both cases are incorporated to each other.

REFERENCES:
patent: 3841670 (1974-10-01), Bottoms
patent: 4022242 (1977-05-01), Turecek
patent: 4787654 (1988-11-01), Zeitlin
patent: 5332233 (1994-07-01), Futa et al.
patent: 5425394 (1995-06-01), Clare
patent: 5730171 (1998-03-01), Niakan
patent: 5732729 (1998-03-01), Shieh
patent: 5931181 (1999-08-01), Cook et al.
patent: 6050285 (2000-04-01), Goncze et al.
patent: 6095176 (2000-08-01), Yang

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