Cylindrical lock assembly

Details Cylindrical lock assembly Cylindrical lock assembly

1990-10-12

1992-09-08

Moore, Richard E.

Closure fasteners

Knobs

70369, 292DIG60, E05B 2902

Patent

active

051452235

ABSTRACT:
A cylindrical lock assembly (20) includes an inside subassembly (22) and an outside subassembly (24) which are assembled with a door (326). Each subassembly (22,24) includes a rose liner (26,38), a return spring cassette (28,40), a rose (30,42), a lever (32,46) and a lever insert (34,48). The inside subassembly (22) also includes a turn button (36) and the outside subassembly (24) includes a cylinder lock (44).
The lever inserts (34,48) are each formed from a plastic material with a first element (400) and a second element (414) which are integrally joined by a plastic ribbon (426). In one instance, the first and second elements (400,414) are separated from the ribbon (426) and are joined to form structure which fills voids in the exterior of the levers (32,46). The voids are necessary for the insertion of the cylinder lock (44) which contains, for example, six tumbler pins. In another instance, only the first element (400) is used where the cylinder lock (44) contains, for example, seven tumbler pins.

REFERENCES:
patent: 1575092 (1926-03-01), Best
patent: 3197985 (1965-08-01), Cosio
patent: 3237976 (1966-03-01), Campoli
patent: 4073172 (1978-02-01), Schlage
patent: 4655059 (1987-04-01), Best et al.
patent: 4672828 (1987-06-01), Theriault
patent: 4715201 (1987-12-01), Craig
patent: 4843852 (1989-07-01), Forshee et al.

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