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Lock assembly

  • US 5,487,289 A
  • Filed: 06/23/1993
  • Issued: 01/30/1996
  • Est. Priority Date: 06/23/1993
  • Status: Expired due to Term
First Claim
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1. A lock assembly for locking a door to a frame element, comprising:

  • a rotatable locking element;

    a locking rod connected to said rotatable locking element, wherein rotation of said locking element in one sense results in said locking rod moving toward a first side of said frame element and rotation in the other sense results in said locking rod moving away from said first side of said frame element;

    a pin having a first end and a second end, wherein said first end selectively engages said rotatable locking element at an engaged position so that said locking element is prevented from rotating;

    a pin actuating mechanism for moving said pin from said engaged position to a disengaged position wherein said pin does not engage said locking element; and

    a rotatable cam having a striking surface to strike said second end of said pin when said pin is at said disengaged position causing said first end of said pin to contact and ride along a surface of said rotatable locking element as it rotates.

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