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Security system

  • US 5,195,448 A
  • Filed: 12/02/1991
  • Issued: 03/23/1993
  • Est. Priority Date: 12/02/1991
  • Status: Expired due to Fees
First Claim
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1. A security system for controlling the entry and exit of persons from an establishment comprising a substantially enclosed vestibule entry;

  • at least tow doorways set in the walls of said vestibule, each of said doorways having a door extending from the floor to the ceiling of said vestibule, said doors and walls of said vestibule being made of bullet resistant material;

    means for detecting the movement of persons through each of said doorways;

    means, responsive to said detection means for selectively controlling the locking of said at least two doors so as to enable a person to pass through or to be detained within said vestibule;

    a vertically oriented panel mounted on the edge of the wall abutting the free edge of each of said doors, each of said vertically oriented panels being pivotable about a vertical axis; and

    means for acting on each of said panels to cause an object placed in the space between the free edge of the associated door and panel to be pushed away from said space so as to prevent the unwanted obstruction of said doorway and/or the wedging of the door in an undesired open condition.

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