Locks – Operating mechanism – Key
Patent
1992-07-27
1994-03-01
Cuomo, Peter M.
Locks
Operating mechanism
Key
70372, 70461, 81 159, 30240, 30226, E05B 908
Patent
active
052897087
ABSTRACT:
The lock cylinder with an external housing accommodates, on its rear face, a closure element acting upon a mortise lock or the like and with an exchangeably inserted core unit the casing of which contains housing pins as tumblers and a cylinder core equipped with a key channel, said cylinder core also receiving core pins as tumblers and being connected merely in a plug-in manner to coupling pins which issue from said closure element and project freely into a socket in said external housing serving for insertion of said core unit, wherein engagement of said coupling pins extends only over a rear region, which is free from key channels, of said cylinder core. A tool is provided for cutting coupling pins on lock cylinders, which is designed as a gripper with two shearing jaws which are located axially in series and rest laterally adjacently to or in a carrying mandrel such that one of said shearing jaws is arranged rigidly on said carrying mandrel resting on one gripper arm and the second of said shearing jaws connected to a second gripper arm is rotatably mounted behind it in said carrying mandrel.
REFERENCES:
patent: 13570 (1855-09-01), Grover
patent: 2494996 (1950-01-01), Geddes
patent: 2527735 (1950-10-01), Johnson
patent: 2543018 (1951-02-01), Hainline
patent: 2560318 (1951-07-01), Wenger
patent: 3333338 (1967-08-01), Burns
patent: 3370353 (1968-02-01), Weissman et al.
patent: 4194286 (1980-03-01), Kearns
Sieg Giselher
Wollweber Peter
Cuomo Peter M.
Dino Suzanne L.
Emhart Inc.
Hoofnagle J. Bruce
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