Locks – Operating mechanism – Key
Patent
1996-02-02
1998-07-07
Boucher, Darnell M.
Locks
Operating mechanism
Key
70399, 70493, 70395, E05B 2706
Patent
active
057751447
ABSTRACT:
A system of non-reproducible locking key and cylinder for said key, which being a flat-blade type key (1) has installed a lengthwise swinging member (6) with the capacity of realizing two combined rotary movements of limited width, which are: a first perpendicular transverse movement at the bottom of said flat blade (1), a second angular sweep rotary movement which takes place in the direction of the width of said blade, movements which are produced respectively with relation to a first (7a, 7b) and second (8) axes. The swinging member (6) being located in a sectorial window (9) which runs through the thickness of the key, forming radial lateral sidewalls (9c) which extend divergently between a relatively narrower front wall (9b) located adjacent the entering end of key (1), and a relatively wider arched rear wall (9c) in opposition thereto.
REFERENCES:
patent: 485724 (1892-11-01), Toops
patent: 1382826 (1921-06-01), Dove
patent: 1567979 (1925-12-01), Northrop
patent: 1735868 (1929-11-01), Klingel
patent: 3877267 (1975-04-01), Harris, Jr.
patent: 4377082 (1983-03-01), Wolter
patent: 4771620 (1988-09-01), Kleinhany
patent: 5086632 (1992-02-01), Hsu
patent: 5170651 (1992-12-01), Errani
patent: 5533369 (1996-07-01), Valdajos-Gallego
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