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Regulator for liquefied petroleum gas systems

  • US 4,016,905 A
  • Filed: 02/06/1976
  • Issued: 04/12/1977
  • Est. Priority Date: 02/06/1976
  • Status: Expired due to Term
First Claim
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1. A regulator, as for use in a fluid system, comprising:

  • a valve body defining a high pressure chamber, a vented low pressure chamber and a passage between said chambers with a contiguous first valve seat;

    a spring-biased diaphragm means affixed to said valve body for closing said vented low pressure chamber;

    a valve stem means affixed to said diaphragm means and extending through said passage so as to be variously positioned therein under control of said diaphragm, said valve stem means including a stud affixed to extend coaxially from said diaphragm means,valve member means slidably disposed on said valve stem for cooperation with said first valve seat to regulate the flow of gas through said passage from said high pressure chamber to said low pressure chamber,said valve member means defining a second valve seat for cooperation with said valve stem means whereby a pair of concentric valves are provided in said regulator on said valve stem means, anda coil spring mounted on said stud between said valve member means and said diaphragm to spring bias said valve member.

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