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THERMOSENSITIVE FLOW CONTROL DEVICE

  • US 3,856,206 A
  • Filed: 07/26/1973
  • Issued: 12/24/1974
  • Est. Priority Date: 07/26/1973
  • Status: Expired due to Term
First Claim
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1. A flow control device which retards flow of a liquid stream when the stream temperature exceeds a predetermined first temperature and which restores full flow when the stream temperature drops to or below a predetermined second and lower temperature, said device comprising:

  • a flow head connected to said liquid stream;

    flow port means in said head through which said liquid stream flows;

    a temperature responsive disc connected to said flow port means and positioned a preselected distance therefrom when said stream temperature is less than said predetermined first temperature, to permit full stream flow through said flow port means;

    said disc having at least a portion thereof free for flexural movement toward and away from said flow port means with such flexural movement occurring in response to temperature variations in said liquid stream;

    said disc arranged and constructed to be flexed toward said flow port means when said stream temperature exceeds said predetermined first temperature, to partially close said flow port means to provide a controlled reduced stream flow through said flow port means;

    said disc portion arranged and constructed to be flexed away from said flow port means and returned to its predetermined spacing at said preselected distance from said flow port means when said stream temperature drops to or below said predetermined second and lower temperature, whereupon full stream flow through said port means is restored.

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