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Padlock with indication device

  • US 8,256,250 B2
  • Filed: 06/11/2010
  • Issued: 09/04/2012
  • Est. Priority Date: 11/23/2004
  • Status: Active Grant
First Claim
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1. A padlock comprising:

  • a housing;

    a shackle having a shaft portion movably mounted in thehousing, and a locking portion extended from the shaft portion and located outside of the housing;

    a limit knob partly received in the housing and having a first position where the limit knob keeps the shackle from rotating and a second position where the limit knob allows the shackle to rotate, and the limit knob being movable between the first position and the second position;

    a block movably located on the limit knob, the block being movable to a predetermined position which is outside of the housing.

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