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Adjustable lockout device for knife gate valves

  • US 6,044,860 A
  • Filed: 02/01/1999
  • Issued: 04/04/2000
  • Est. Priority Date: 02/01/1999
  • Status: Expired due to Term
First Claim
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1. A lockout device for preventing actuation of a material flow control valve having a pair of spaced apart, generally opposed abutment surfaces, with at least one of the abutment surfaces being shiftable relative to the other in such a manner that the spacing between the abutment surfaces decreases when the valve is actuated, said lockout device comprising:

  • a body including a pair of generally oppositely facing engagement faces positionable between the pair of abutment surfaces,said body being operable to permit selective adjustment of the distance between the engagement faces so that the engagement faces are positively engageable with the pair of abutment surfaces to prevent the spacing between the abutment surfaces from decreasing, and thereby prevent actuation of the valve.

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