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Padlock with fully integrated dual locking system with indicator/signal assembly

  • US 7,225,648 B2
  • Filed: 10/06/2005
  • Issued: 06/05/2007
  • Est. Priority Date: 11/04/2003
  • Status: Active Grant
First Claim
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1. A padlock constructed for providing two separate and independent locking means in a single, integrated construction, with a first locking assembly being controlled by a combination and a second locking assembly being key controlled, said padlock comprising:

  • A. a housing or cover incorporating a combination controlled locking section and a key controlled locking section said key controlled locking section being further defined as comprising at least one cylinder mounted therein for arcuate pivoting movement relative to the housing/cover in response to the receipt and use of an activating key, with the arcuate pivoting movement of said cylinder being constructed for releasing a shackle from locked engagement with the housing/cover;

    B. said shackle cooperatively associated with the housing/cover and movable between a first lockingly engaged position and a second unlocked, released position, wherein said second position is attainable using either the combination controlled section or the key controlled section;

    C. a signal/indicator assemblya. mounted in the housing/cover in cooperating relationship with the key controlled section and responsive to the use of the key controlled section for being movable from a first non-alert position to a second alert-providing position in response to the use of the key controlled locking section for opening the padlock, andb. comprising an elongated rod or shaft1. mounted in the housing/cover in juxtaposed, adjacent, spaced, axial relationship to the cylinder,2. extending outwardly from the housing/cover a fixed axial distance, defining an outwardly extending portion and forming an alert providing indicator,3. constructed for arcuate pivoting movement about its central axis in response to the use of the key controlled section, and movable between a first non-alert providing position and a second alert-providing position without being axially movable, and4. comprising a radially extending arm mounted for cooperative engagement with said rod/shaft, with said arm being constructed for controlled movement with the arcuate pivoting movement of said cylinder, thereby causing said rod/shaft to arcuately pivot simultaneously therewith; and

    c. comprising locking means for maintaining the indicator member in its second alert-providing position, said locking means being responsive to the use of a reset key for enabling the indicator member to be replaced in its first non-alert position; and

    1. comprising a locking plate mounted to the rod/shaft and pivotally movable in the housing/cover in response to the arcuate pivoting movement of said radially extending arm; and

    2. cooperating with an axially movable, spring biased shaft mounted in an elongated cavity formed in said housing/cover, with the first end of said shaft being in contact with the locking plate and in juxtaposed relationship with a shaft receiving zone formed in the locking plate, whereby movement of the indicator member from its first position to its second position causes the shaft receiving zone to be axially aligned with the spring biased shaft, for enabling the shaft to move into locking engagement with the receiving zone, thereby assuring that the indicator member is secured in its second, alert-providing position when activated; and

    D. a reset key cooperatively associated with the padlock for being inserted into the housing/cover after movement of the signal/indicator assembly into its second position and arcuately pivoting therein for causing the signal/indicator assembly to be returned to its first position.

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