Method of installing a combination lock deadbolt assembly and a

Details Method of installing a combination lock deadbolt assembly and a Method of installing a combination lock deadbolt assembly and a

1994-04-21

1996-01-02

Gall, Lloyd A.

Locks

Parts, attachments, accessories and adjuncts

For combination-operated mechanism

29464, 295251, 70370, 70451, 70466, 408 1R, 408115R, 408241B, E05B 906

Patent

active

054798027

ABSTRACT:
A method of installing a combination lock deadbolt assembly includes the steps of providing a combination lock deadbolt assembly for mounting on a door surface in combination with a drill resistant hard plate. The hard plate, mounted on the outer door surface, includes legs extending through the door for attachment to the deadbolt assembly. A drill guide is provided having a tapered outer surface which corresponds to tapered openings in the combination lock deadbolt assembly. In use, the tapered drill guide is inserted into the openings in the deadbolt followed by insertion of a drill bit which drills holes through the door. After drilling each hole, the larger holes are drilled to facilitate attachment leg insertion into the door. The deadbolt can then be mounted to the door surface and to the drill resistant hard plate. A combination dial lock can then be mounted in the deadbolt assembly. A kit for combination lock installation includes the deadbolt assembly, the tapered drill guide and the drill resistant hard plate.

REFERENCES:
patent: 1579126 (1926-03-01), Maxwell
patent: 1791029 (1931-02-01), Hurd
patent: 1831813 (1931-11-01), Levedahl
patent: 3899907 (1975-08-01), Prahl
patent: 4351170 (1982-09-01), Clompus
patent: 4530223 (1985-07-01), Oliver
patent: 4688409 (1987-08-01), Oliver et al.
patent: 4708007 (1987-11-01), Stoia
patent: 4967577 (1990-11-01), Gartner et al.
patent: 5092144 (1992-03-01), Fleming et al.
patent: 5220816 (1993-06-01), Fish et al.
patent: 5257519 (1993-11-01), Miller, III

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