Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2006-09-19
2006-09-19
Keasel, Eric (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S625400, C251S324000
Reexamination Certificate
active
07108011
ABSTRACT:
A self closing cartridge for a single handle faucet includes a casing having a piston therein which is held in a normally closed, up position by water pressure. There are seal members positioned to form a seal between the sleeve and the casing. Further, a spring is incorporated to assist the hydraulic self closure of the cartridge by raising the piston to a normally closed position under low water pressure conditions and to mechanically shear and digest any deposited matter in the area of the spring.
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Koepsel Scott H.
Lordahl Var
Keasel Eric
Lordahl Var
McManus Kajane
Schneider Craig M.
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