Locks – Operating mechanism – Key
Patent
1999-04-21
2000-05-09
Barrett, Suzanne Dino
Locks
Operating mechanism
Key
70423, 70453, E05B 1500
Patent
active
060587520
ABSTRACT:
A pick-resistant lock system including an essentially cylindrical housing with an axial cylindrical bore and a plurality of radial bores spaced along the cylindrical bore and constituting a pin chamber, the radial bores having open ends in communication with the axial bore; a rotatable main cylinder rotatably located within the axial bore, the man cylinder having radial bores alienable with the radial bores of the housing and a planar key way alienable with the radial bores when in the locked orientation; a plurality of pins formed of plural segments positionable within the radial bores of the housing and main cylinder and with springs urging the pins toward the key way, the segments of the pins having interfaces which are alienable with the interface between the bores of the main cylinder and housing; a generally cylindrical facing cylinder axially alienable with the main cylinder and freely rotatable with respect thereto, the facing cylinder having an enlargement matable with a complementary recess in the housing, the facing cylinder also having an introductory key way alienable with the key way of the main cylinder for receiving a key, and a cam secured to the face of the main cylinder remote from the facing cylinder for effecting the unlocking of the lock upon rotation of the cylinder and cam by rotation of a key.
REFERENCES:
patent: Re29277 (1977-06-01), Harrington
patent: 1414348 (1922-05-01), Falk
patent: 2007143 (1935-07-01), Keil
patent: 3478549 (1969-11-01), Schlage
patent: 3531959 (1970-10-01), Weber
patent: 3736780 (1973-06-01), Singer
patent: 4074552 (1978-02-01), Smith
patent: 4103526 (1978-08-01), Surko, Jr.
patent: 4160368 (1979-07-01), Solow
patent: 4404824 (1983-09-01), Hennessy
patent: 4490998 (1985-01-01), Wellekens
patent: 4530223 (1985-07-01), Oliver
patent: 4631941 (1986-12-01), Sjunnesson
patent: 4638652 (1987-01-01), Morse et al.
patent: 4741188 (1988-05-01), Smith
patent: 4953375 (1990-09-01), Izou
patent: 5063765 (1991-11-01), Squire et al.
patent: 5070716 (1991-12-01), Whorlow
patent: 5361614 (1994-11-01), Metcalf
patent: 5400629 (1995-03-01), Myers
patent: 5475997 (1995-12-01), Chung
patent: 5640865 (1997-06-01), Widen
patent: 5927115 (1999-07-01), Feder
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