Quarter-turn dual end stop actuator and method

  • US 6,604,449 B2
  • Filed: 04/19/2002
  • Issued: 08/12/2003
  • Est. Priority Date: 12/14/2000
  • Status: Expired due to Fees
First Claim
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1. An assembly with a dual end stop to provide an actuator operable to operate a quarter turn valve, said actuator comprising an actuator housing having a zone for pressure containment and a rotary drive having at least a portion thereof mounted for rotation within said actuator housing, said assembly comprising:

  • a first stop surface and a second stop surface mounted for stopping said rotary drive in a corresponding first rotational position and a second rotational position;

    a first stop member for engaging said first stop surface, said first stop member being mounted outside of said zone for pressure containment; and

    a second stop member for engaging said second stop surface, said second stop member being mounted outside of said zone for pressure containment, said first stop member and said second stop member being adjustable to provide that an extent of rotation between said first rotational position and said second rotational position that is greater than ninety degrees.

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