Closure fasteners – Keepers
Patent
1989-03-14
1989-05-23
Raduazo, Henry E.
Closure fasteners
Keepers
292DIG53, 16384, 16382, E05C 2102
Patent
active
048323888
ABSTRACT:
One of the most popular ways of gaining access to a locked premise is through forced entry of a door assembly. Presented is a door assembly incorporating a system of components cooperating in a door assembly to increase resistance to forced entry through such door assembly. Forced entry is generally defined as being an unauthorized entry accomplished by the use of force upon the physical components of the premises, generally doors and windows, and usually exterior entry doors. Such forced entry usually takes the form of battering on the door adjacent to the door lock assembly, or adjacent to the center hinge of the door, usually applied by one or more solid kicks delivered to the door. Presented is a door assembly incorporating a reinforcement plate for the door lock assembly, a strike plate of novel design cooperating with the door assembly to strengthen the union between the door lock assembly and the strike jamb of the door frame, and a reinforcement plate associated with one or all of the hinges to reinforce the union between the hinges and the hinge jamb. In one aspect, the invention includes readily available mass produced consumer installable components that are capable of resisting breaking or bending or splintering of associated wood members as by a pry tool, and in another aspect, includes the use of extraordinarily long screw fasteners driven through the associated component at an angle and to a depth that they engage structural members so that any attempted forced entry through the door imposes tension on one or more such screw fasteners and requires that the elongated screw fasteners be stripped axially from the wall structure before forced entry can be accomplished.
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Leavitt John J.
Raduazo Henry E.
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