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Solenoid operated faucet

  • US 4,915,347 A
  • Filed: 05/18/1989
  • Issued: 04/10/1990
  • Est. Priority Date: 05/18/1989
  • Status: Expired due to Term
First Claim
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1. A faucet comprising:

  • a faucet body having an inner chamber and a spout which opens into the inner chamber at an aperture through an inner wall of said body;

    a valve housing, mounted substantially entirely within the inner chamber of said faucet body and separable therefrom, having a inlet chamber opening transversely into an external annular channel and an outlet chamber having a first opening centrally located relative to said annular channel, said valve housing having an annular surface between the channel and the outlet chamber first opening thereby defining a valve seat, said valve housing a first portion slidably disposed in the aperture and a second portion secured to said faucet body;

    a resilient diaphragm having a first surface that releasably engages the valve seat and has a periphery which sealably engages said valve housing, said diaphragm including a central aperture and including a metering aperture communicating with the inlet chamber;

    a tapered pin extending from said valve housing into the metering aperture;

    a diaphragm retainer in the central aperture of said diaphragm and having an aperture therethrough which communicates with the outlet; and

    a solenoid assembly mounted on said valve housing to form a cavity between said diaphragm and said solenoid assembly into which the metering aperture communicates, said solenoid assembly including a plunger biased against said diaphragm retainer to releasably seal the aperture of said diaphragm retainer, and including a electrical coil around the plunger.

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