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Door gasket resistance based intrusion alarm system

  • US 5,942,974 A
  • Filed: 04/29/1998
  • Issued: 08/24/1999
  • Est. Priority Date: 04/29/1998
  • Status: Expired due to Term
First Claim
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1. An intrusion detection system comprising:

  • a container which encloses electrical equipment;

    a door connected to said container for allowing access to said electrical equipment;

    a gasket located between the door and the container which reduces the ingress and egress of electromagnetic radiation into and from said container, said gasket having an associated resistance value; and

    ,a circuit for monitoring the resistance value of said gasket to determine if the door has become at least partially separated from the container.

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