Cylinder lock

Details Cylinder lock Cylinder lock

1998-11-12

2000-07-18

Boucher, Darnell

Locks

Operating mechanism

Key

70375, 70379R, 70493, E05B 904

Patent

active

060890592

ABSTRACT:
The present invention relates to a detachable cylinder lock, which includes a case shell having an axial row of conic pin-holes for avoiding the pins falling out; a cylinder having a row of pinholes, in which a lower pin is located, corresponding to the pinholes of the case shell; the cylinder has an axial keyhole for a key inserting in, and a slant face (or a conic face) for the convenience of the cylinder inserting into the cylinder hole of the case shell; a follow block has a hole for the rear lug of the cylinder inserting in, and a cross hole penetrating through them for a fastening component screwing in or out.

REFERENCES:
patent: 1484406 (1924-02-01), Ottinger
patent: 1597517 (1926-08-01), Estabrook
patent: 1832108 (1931-11-01), Falk
patent: 2247621 (1941-07-01), Speer
patent: 3336794 (1967-08-01), Gray et al.
patent: 3500670 (1970-03-01), Hawkins
patent: 4211097 (1980-07-01), Martikainen et al.
patent: 4631942 (1986-12-01), Sierra
patent: 5121618 (1992-06-01), Scott
patent: 5138856 (1992-08-01), Chyun
patent: 5966973 (1999-10-01), Watts

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