Patent ID: 6471264
Filing Date: 2002-10-29
Classification: E05C,Y10T

Abstract:
A door security apparatus for protecting a building from forced entry, which comprises:(a) a substantially hollow, elongated housing mounted in a vertical orientation on an interior surface of a door, a lower end of said housing spaced slightly from a floor of said premises; (b) an elongated principal brace bar, which is disposed so as to slideably and rotatably insert into said housing, said principal brace bar having a vertical orientation, which is coaxial to said housing and having a lower end, which extends below the lower end of said housing, but retains a clearance above the floor of said premises; (c) at least one substantially horizontal rod, said rod having a proximate end, which is rigidly mounted to the lower end of said principal brace bar below the lower end of said housing, and a distal end, which extends in a substantially horizontal fashion towards an interior of said premises; (d) a vertically oriented, slideable brace bar having at least one hole therein, said hole corresponding to said substantially horizontal rod, said slideable brace bar mounted on said substantially horizontal rod, in such a manner that said substantially horizontal rod is operative to slide through said hole as said door moves to and from a closed position; and (e) a receptacle in the floor, which is dimensioned to receive a lower end of said slideable brace bar and is operative to: (i) receive the lower end of said slideable brace bar, which extends below the floor of said premises, and (ii) immobilize said slideable brace bar at a predetermined position of said receptacle, such that: when said door is opening, said substantially horizontal rod slides towards the interior of said premises through the hole in said slideable brace bar, said door reaching a partially open position, where the proximate end of said substantially horizontal rod reaches said slideable brace bar and said slideable brace bar abuts against said principal vertical brace bar, thereby bracing said door in said partially open position, and when said door is closing, said substantially horizontal rod slides away from the interior of said premises through the hole in said slideable brace bar, said door coming to a rest in a fully closed position when said slideable brace bar is at the distal end of said substantially horizontal rod.