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Method and apparatus for monitoring keys and other articles

  • US 4,595,922 A
  • Filed: 12/10/1984
  • Issued: 06/17/1986
  • Est. Priority Date: 12/10/1984
  • Status: Expired due to Fees
First Claim
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1. Apparatus for storing and monitoring the locations of articles such as keys, said apparatus comprising:

  • a plurality of article holders each holding one article and each having a unique identification code which identifies the article held thereby;

    a storage member having a plurality of fixed and stationary storage locations for the articles, each storage location having a unique address and being adapted to receive and store one article holder at a time, each article holder being removable from the storage location at which it is stored and each article holder being replaceable on the storage member at any randomly selected storage location which is not already storing another of the article holders;

    an indicator for each storage location on said storage member, each indicator having energized and deenergized conditions;

    means for scanning all of said addresses periodically to determine and periodically update for each address the identification code of the article holder stored at the storage location corresponding to the address;

    means for accepting and recording valid user codes assigned to authorized users;

    means for accepting coded requests each requesting the storage location of an article holder, each request corresponding to the indentification code of the article holder whose storage location is requested;

    means for energizing the indicator for the storage location of each article holder whose identification code corresponds to a coded request, thereby indicating the location of the article holder to which each coded request corresponds;

    means for recording the identification code of each article holder that is removed from said storage member; and

    means for displaying the user code and the identification code of each removed article holder, thereby identifying the user code of the user who removed each article holder that has been removed from said storage member.

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