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Authorization system and method using a weighing scale to control access based on a registered weight of a key and key ring combination

  • US 8,513,544 B2
  • Filed: 08/18/2010
  • Issued: 08/20/2013
  • Est. Priority Date: 08/18/2010
  • Status: Expired due to Fees
First Claim
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1. A key identification system comprising:

  • keys to be identified being placed on key rings;

    a weight and an identity of each ring and key combination being registered with a controller;

    a weigh scale arranged outside of a storage box for ring and key combinations, the weigh scale being adapted to weigh ring and key combinations;

    the weigh scale delivering to the controller a signal corresponding to a weight of a ring and key combination;

    the controller being adapted to compare a scale weight of a ring and key combination with a registered weight of the same ring and key combination; and

    the controller using the weight signal to control access to the storage box.

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