Mechanical code lock

Details Mechanical code lock Mechanical code lock

1990-11-13

1992-04-14

Luebke, Renee S.

Locks

Operating mechanism

Key

70384, 70409, 70411, E05B 2700

Patent

active

051036614

ABSTRACT:
A code lock includes an intermediate bead seat, upper and lower bead seats, all of which are provided with tumbler bead holes receiving tumbler beads. The upper and lower bead seats are slidable relative to the intermediate bead seat between a normal position in which the bead holes of the upper and lower bead seats are aligned with first bead holes of the intermediate bead seat and a resetting position in which the bead holes thereof are aligned with second bead holes of the intermediate bead seat. The combination of the tumbler beads can be changed by using a code key which selectively transfers some tumbler beads from the first to the second bead holes.

REFERENCES:
patent: 3877267 (1975-04-01), Harris
patent: 4377082 (1983-03-01), Wolter
patent: 4667495 (1987-05-01), Girard
patent: 4712402 (1987-11-01), Monahan
patent: 4741188 (1988-05-01), Smith

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