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LOCK WITH SECURITY COUNTER

  • US 3,789,639 A
  • Filed: 07/10/1972
  • Issued: 02/05/1974
  • Est. Priority Date: 07/10/1972
  • Status: Expired due to Term
First Claim
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1. A lock comprising a main body portion;

  • a shackle movable with relation to said main body portion from an unlocked position to a locked position, a locking mechanism for locking the shackle in said locked position, a registering counter operated by said shackle for counting and registering the number of times the shackle is moved from unlocked to locked position;

    wherein the shackle comprises a leg including rack means and the registering counter includes pinion means in meshed engagement with said rack means.

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