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Security and locking mechanism for a double door utilized in a security safe, vault or bunker

  • US 7,003,991 B2
  • Filed: 08/06/2004
  • Issued: 02/28/2006
  • Est. Priority Date: 03/18/1999
  • Status: Expired due to Fees
First Claim
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1. A security and locking mechanism for a double door utilized in a security safe, vault or bunker, said security and locking mechanism comprising:

  • a security safe, vault or bunker having a plurality of interconnected side walls, a top wall interconnected with said side walls, and a bottom wall interconnected with said side walls, there being formed on one of said side walls an outward opening double door for ingress and egress into said security safe, vault or bunker, said double door being secured by a security and locking mechanism, said double door comprising a first door and a second door hinged to one of said side walls along one vertical longitudinal edge, an opposing vertical longitudinal edge of said first door and said second door in abutting relationship to each other when in a closed position forming a seam between said doors, said doors having an interior surface and an exterior surface;

    a keypad or combination member mounted on said exterior surface of said first door;

    a rotatable handle member mounted on said exterior on said first door, said rotatable handle member in communication with a rotatable gear member mounted on a common spindle with said rotatable handle member on said interior surface of said first door, said rotatable gear member in communication with a linear gear member mounted on said security and locking mechanism on said interior of said first door, said rotatable handle member rotatable in response to correct combination being entered on said keypad or said combination member;

    a lever handle member mounted on the exterior of one of said first or second doors for the hingeable opening and closing of said double door;

    a plurality of vertically oriented first bolt channels secured to said interior surface of said first and second doors, proximate said hinged vertical longitudinal edge, said bolt channels proximate said hinged vertical longitudinal edge having fixedly secured thereto a plurality of horizontally disposed fixed security bolts extending in a plane parallel to said door and extending beyond said hinged vertical longitudinal edge so as to overlap an inner wall of said security safe, vault or bunker;

    a second bolt channel fixedly vertically oriented and secured to the inner surface of said second door proximate said seam formed by said first and second doors when in a closed position, said second bolt channel having a plurality of horizontal aligned apertures there through;

    a third bolt channel vertically oriented and fixably secured to the inner surface of said first door, said third bolt channel overlapping said seam formed between said first and second doors, said third bolt channel having a plurality of horizontal aligned apertures there through in alignment with said apertures in said second bolt channel;

    a horizontally movable throw bolt support bar having a vertical orientation and positioned between said first bolt channel and said third bolt channel on said first door, and having a plurality of throw bolts fixedly mounted thereon and extending to one side thereof horizontally, said throw bolts alignable with apertures formed in said second bolt channel and said third bolt channel mounted proximate said seam of said first and second doors, one of said throw bolts extending to an opposing side of said throw bolt support bar and engageable in an alignable aperture formed in said first bolt channel proximate said hinged vertical edge on said first door;

    one of said throw bolts having secured thereon, said linear gear member in communication with said rotatable gear for movement of said throw bolt support bar and secured throw bolts from a closed locked position wherein said throw bolts extend through said second and third bolt channels to an open position wherein said throw bolts are withdrawn such that said throw bolts do not extend beyond said seam of said doors into engagement with said second bolt channel.

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