Switch mechanism, mounting assembly, and shaft position indicator device for a rotary or linear valve

  • US 5,278,530 A
  • Filed: 10/17/1991
  • Issued: 01/11/1994
  • Est. Priority Date: 10/17/1991
  • Status: Expired due to Term
First Claim
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1. An arrangement associated with a shaft of a device for indicating an operative or an inoperative state for said device, comprising:

  • a switch mechanism including a unitary enclosure having a cavity and magnetic proximity switch means in said cavity for producing electrical signals upon actuation thereof,a mounting assembly for slideably receiving and supporting said switch mechanism as a unit,shaft position indicator and control means associated with said mounting assembly and said switch mechanism and having magnetic means, andmeans for coupling said shaft position indicator and control means to said shaft of said device,said unitary enclosure of said switch mechanism substantially enclosing said cavity and said proximity switch means in said cavity,said mounting assembly including means for positioning said switch mechanism in the vicinity of said magnetic means of said shaft position indicator and control means,said shaft position indicator and control means further including means connected to said shaft coupling means for rotating said magnetic means of said shaft position indicator and control means to cause said magnetic means of said indicator and control means to travel adjacent to said magnetic proximity switch means of said switch mechanism for said actuation of said switch means upon said movement of said shaft of said device during said operative state of said device.

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