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Padlock with indication device

  • US 9,890,567 B2
  • Filed: 05/06/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 11/23/2004
  • Status: Active Grant
First Claim
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1. A lock comprising:

  • a shell;

    a shackle movably mounted on the shell and comprising a short section and a long section;

    a first lock core inserted in the shell and movable between an unlocking position and a locking position, wherein the first lock core prevents rotation of the short section of the shackle about the long section of the shackle in the locking position;

    a second lock core inserted in the shell and movable between an unlocking position and a locking position for preventing linear movement of the long section of the shackle;

    an indicator operatively connected to the first lock core and movable between an original position and an indication position;

    wherein the indicator is movable into the indication position from the original position by the first lock core when the first lock core is moved into the unlocking position from the locking position a first time before the long section of the shackle is linearly moved relative to the second lock core;

    wherein the indicator is not returned into the original position from the indication position by the first lock core when the first lock core is returned into the locking position from the unlocking position;

    wherein the indicator is kept in the indication position once the first lock core is moved into the unlocking position from the locking position; and

    wherein an end of the short section of the shackle is operable to return the indicator into the original position from the indication position.

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