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Safety monitoring system for punch press operators

  • US 4,621,300 A
  • Filed: 07/05/1984
  • Issued: 11/04/1986
  • Est. Priority Date: 07/05/1984
  • Status: Expired due to Fees
First Claim
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1. A passive safety monitoring system for press operators, comprising in combination:

  • a wrist mountable unit containing mechanism which controls light passage through two optical fiber cables secured to said wrist mountable unit when the wrist unit is properly positioned on the wrist of the operator;

    a separate electronic unit which initiates light passage through one of the optical fiber cables to the wrist unit and, also, receives light through the second optical fiber cable from the wrist unit completing a light transmission circuit to activate additional electronic circuitry in the electronic unit to energize press control circuits;

    a press operating system activated by the press control circuits in said additional electronic circuitry.

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