Locks – Operating mechanism – Key
Patent
1989-10-31
1992-02-18
Gall, Lloyd A.
Locks
Operating mechanism
Key
294011, 2940208, 70382, 70385, 70420, 70453, E05B 1506
Patent
active
050883062
ABSTRACT:
A cylinder lock is capable of providing a changeable keyway by means of elongated warding members which are insertable into a keyway access slot which has a cross-sectional configuration larger than for a desired key. There may be one or more warding members which are insertable into the plug and extend the length of the keyway access lot to define the cross-sectional area of a desired key.
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Gall Lloyd A.
Medeco Security Locks Inc.
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