Dual end stop actuator and method

  • US 6,604,448 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 actuator assembly with a dual end stop to provide an actuator operable to operate a quarter turn valve, said dual end stop comprising:

  • an actuator housing, said actuator housing having a zone for pressure containment, a rotary drive having at least a portion thereof mounted for rotation within said actuator housing, 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;

    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 for controlling said first rotational position and said second rotational position, said actuator assembly consisting of no other stop adjustment members besides said first stop member and said second stop member; and

    said first stop member and said second stop member being adjustable to provide that said extent of rotation is greater than ninety degrees.

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