Opening and closing valve

Details Opening and closing valve Opening and closing valve

2007-11-20

2007-11-20

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Systems

Multiple inlet with multiple outlet

C251S038000, C251S230000

Reexamination Certificate

active

10525994

ABSTRACT:
A switching valve assembly32for use in a mixing faucet is disclosed. The switching valve assembly comprises a switching valve assembly32for use in a mixing faucet, which comprises a manual operation member36adapted to be moved in response to a pressing operation by a user, a push rod35having a base end joined to the manual operation member, a pilot valve40disposed relative to a distal end of the push rod, a coil spring42interposed between the pilot valve and the distal end of the push rod, a diaphragm main valve46having a pilot-valve port designed such that the pilot valve is selectively brought into contact therewith and separated therefrom, a pressure chamber48formed on the side of a back surface of the main valve to contain a part of the push rod, the pilot valve and the coil spring, and a valve seat52designed such that a front surface of the main valve is selectively seated thereon and unseated therefrom.

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