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Flow control device

  • US 4,429,422 A
  • Filed: 10/09/1981
  • Issued: 02/07/1984
  • Est. Priority Date: 10/09/1981
  • Status: Expired due to Fees
First Claim
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1. A liquid flow control device for delivering from a hot water supply and a cold water supply either cold water or hot water mixed with cold water, said flow control device comprising a chamber having a first inlet, a second inlet and a discharge outlet for connection to a sink delivery fitting, means connecting said first inlet to said cold water supply means for connecting said second inlet to said hot water supply, means for connecting said first inlet to said second inlet by a breech pipe, a one way valve interposed in said breech pipe for preventing the transfer of hot water to said first inlet while permitting transfer of cold water to said second inlet, a solenoid operated valve which stops and starts the flow of water through said first inlet into said chamber, a solenoid operated valve which stops and starts the flow of water through said second inlet into said chamber, and switch means for controlling said solenoids so that some cold water flows through the liquid flow control device each time it operates.

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