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Internal rotary valve actuator system

  • US 5,238,022 A
  • Filed: 10/15/1991
  • Issued: 08/24/1993
  • Est. Priority Date: 10/09/1990
  • Status: Expired due to Term
First Claim
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1. An actuator system comprising:

  • a pressure vessel for containing pressure fluid;

    a rotatable element positioned in said pressure vessel;

    a ratchet wheel connected to said rotatable element for controllably rotating said rotatable element;

    a ratchet member engageable with said ratchet wheel;

    reciprocating means positioned at least partially within said pressure vessel and controllable from outside of said pressure vessel for reciprocating said ratchet member relative to said ratchet wheel to controllably rotate said ratchet wheel and thereby said rotatable element; and

    a sealed chamber assembly disposed in said pressure vessel and within which at least a portion of said reciprocating means is positioned for protection from pressure fluid in said pressure vessel.

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