Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Reexamination Certificate
2006-11-15
2009-08-18
Hepperle, Stephen (Department: 3753)
Fluid handling
Removable valve head and seat unit
Retained by bonnet or closure
C137S527800, C137S556600, C137S597000, C137S606000, C137S876000, C137S887000
Reexamination Certificate
active
07575019
ABSTRACT:
The present invention is related to a water faucet having a water temperature retaining feature. The water faucet includes a hot water control, a cold water control, a mixing chamber for receiving the hot water and the cold water, a first flow control cartridge operationally coupled with the hot water control for regulating the flow of hot water, a second flow control cartridge operationally coupled with the cold water control for regulating the flow cold water, an outlet for dispensing a mixture of hot and cold water received from the mixing chamber, and a master control for controlling the dispensing of water through the outlet, wherein the master control is capable of stopping the dispensing of water through the outlet while either of the hot water control and the cold water is in an open position.
REFERENCES:
patent: 508584 (1893-11-01), Stevens
patent: 4605200 (1986-08-01), Huppee
patent: 4628962 (1986-12-01), Pezzarossi
patent: 4738277 (1988-04-01), Thomas
patent: 5487408 (1996-01-01), Pokhis
patent: 5725010 (1998-03-01), Marty et al.
patent: 6626208 (2003-09-01), Chen
Hepperle Stephen
Lee Hong Degerman Kang & Waimey
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