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VEHICLE ELECTRICAL COMBINATION LOCK

  • US 3,710,316 A
  • Filed: 09/01/1971
  • Issued: 01/09/1973
  • Est. Priority Date: 09/01/1971
  • Status: Expired due to Term
First Claim
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1. A combination-operated electrical lock system for providing signals to open a lock when signals representing N digits of an N-digit combination are sequentially entered into the system comprising means for providing a sequence of combination input signals, sequencing means for providing a series of signal conditions in predetermined sequence, means responsive to coincidence between predetermined ones of said input signals and predetermined ones of said signal conditions for advancing said sequencing means to an N+1 signal condition providing an unlocking output signal, and means responsive to coincidence between the N+1 signal condition and a predetermined one of said combination input signals for providing a semi-locking output signal.

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