Hinge bolt set
AssigneeNouveaux Security Products Limited
InventorsAlan R. Zebedee, Derek R. Hutchins
Life of this patent
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Abstract
A hinge bolt set is disclosed for improving security of hinged doors and the like, comprising a circular metal rod (1) adapted to be located in an edge face of a door (D) adajcent to but spaced from a hinge (H) and a synthetic resinous keep (7) adapted to be located in a opposing face of a door jamb (J), the keep having a tapered cavity (9) therein to receive a projecting end of the rod (1), which cavity terminates in an arcuate surface 13 to receive the bolt (1). The rod may be held in place by a knurled portion (3) and the keep with screws (17).
Claims9
A hinge bolt set comprising a rod of circular cross-section adapted to be inserted into an aperture in an edge face of a door to which face hinges are normally connected and a keep adapted to be inserted into an aperture in the jamb of a frame of the door, said keep having a cavity therein extending from a side edge thereof to a central portion thereof so as to permit the rod, during use, to move into and out of said cavity, the inner end of said cavity terminating in an arcuate surface complementary with that of said rod and wherein one of the rod and keep is formed of a synthetic resinous material, and the other of said parts is formed of metal.
Dependencies are inferred from the claim text.