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Locking device for systems access to which is time-restricted

  • US 6,081,199 A
  • Filed: 01/30/1998
  • Issued: 06/27/2000
  • Est. Priority Date: 08/01/1995
  • Status: Expired due to Term
First Claim
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1. In a system for the controlled, time-restricted use of objects of use with a locking device and an access control unit, a method comprisingthe access control unit (1) issuing an opening code (4),the locking device (2) receiving the opening code (4) to unlock an object of use controlled thereby,inputting an end code (6) into the locking device for ending use of the object, andthe locking device outputting a confirmation code (8) and changing the opening code (4→

  • 4'"'"').

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