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Safety helmet lockout system

  • US 6,003,156 A
  • Filed: 05/28/1998
  • Issued: 12/21/1999
  • Est. Priority Date: 05/28/1998
  • Status: Expired due to Fees
First Claim
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1. An equipment use-prevention lockout system comprising:

  • an item of equipment rendered in a non-operational condition until enabled to an operational condition by an enabling means;

    a protective apparatus separate from said item of equipment intended to be worn by a user during operation of said item of equipment and having a sensor system for determining that said user has properly secured said protective apparatus to said user; and

    said sensor system communicating with said enabling means to permit said enabling means to alter the condition of said equipment from said non-operational condition to said operational condition only when said sensor system has determined that said user has properly secured said protective apparatus to said user, said protective apparatus comprising a protective safety helmet for wearing on a user head and having a chin strap, and a locking buckle lockable and unlockable with an enabling key;

    said sensor system comprising a plurality of physio sensors disposed within said chin strap and intended to contact said user during wearing of said helmet when said chin strap is fastened, and a tension sensor for detecting tension within said chin strap;

    said sensor system generating a pin or tumbler retracting signal adapted to release said enabling key from said locking buckle only when all of said plurality of physio sensors and said tension sensor indicate that said helmet is properly secured to the head of said user; and

    said enabling means of said item of equipment adapted to receive said released enabling key to permit said user to render said item of equipment from said non-operational condition to said operational condition.

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