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Electromagnetic door lock with on-board programmable access control

  • US 5,479,151 A
  • Filed: 03/31/1994
  • Issued: 12/26/1995
  • Est. Priority Date: 03/31/1994
  • Status: Expired due to Term
First Claim
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1. An electromagnetic lock system transformable between locked and unlocked states comprising:

  • electromagnet means comprising a core and a coil positioned about said core and selectively energizable for generating an electromagnetic field;

    armature means for attraction by said electromagnetic field;

    housing means for housing said electromagnet means; and

    microprocessor means comprising a microprocessor disposed in said housing means and comprising input means for providing a plurality of input signals to said microprocessor and output means for generating an output signal from said microprocessor, said coil being selectively energizable in response to said output signal.

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