Pressure regulator with selector control

  • US 6,202,682 B1
  • Filed: 01/04/1999
  • Issued: 03/20/2001
  • Est. Priority Date: 01/04/1999
  • Status: Expired due to Term
First Claim
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1. A pressure regulator for providing a reduced output pressure from an elevated fluid supply pressure, said pressure regulator comprising:

  • a body having an inlet adapted to be connected to the fluid supply pressure, an outlet chamber and an outlet communicating with said outlet chamber;

    a valve orifice separating said inlet and outlet chamber;

    a valve member in said outlet chamber movable relative to said valve orifice for controlling flow through said valve orifice from said inlet to said outlet; and

    a pressure responsive member in said outlet chamber movable in response to output pressure variations;

    said pressure regulator being characterized by;

    an overtravel cartridge connected between said pressure responsive member and said valve member for moving said valve member toward said valve orifice in response to an increase in output pressure;

    said overtravel cartridge including first and second relatively movable, spaced apart end members and a spring captured between said end members;

    said valve member being connected to said first end member and said pressure responsive member being coupled to said second end member;

    said end members being interlocked to compress said spring with a preload force greater than required to hold said valve member against said valve orifice in opposition to fluid supply pressure; and

    a selector assembly movable between a normal position and a flush position, said selector assembly including an actuator spaced from said end members in said normal position and said actuator engaging said first end member and further compressing said spring to move said valve member away from said valve orifice in said flush position.

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