Rekeyable lock method and apparatus

Details Rekeyable lock method and apparatus Rekeyable lock method and apparatus

1981-12-07

1984-04-03

Wolfe, Robert L.

Locks

Operating mechanism

Key

70383, 70340, E05B 2500

Patent

active

044400098

ABSTRACT:
A rekeyable cylinder lock includes removeable spacers between top and bottom tumbler pins, and a key bit device for removing a spacer from the pin chamber through the key way. The key bit device includes bitting thereon to position the spacer in the top pin chamber and a cut in the opposite side thereof adapted to capture the spacer from the top pin chamber and remove it from the lock. In another embodiment of the invention, a key bit device is provided for placing a spacer into a pin chamber of the lock to rekey the lock. It includes a mechanism, such as a spring, in a cut on the back side of the key bit that is adapted to force a spacer out of the cut and into the pin chamber in the lock.

REFERENCES:
patent: 1650568 (1927-11-01), Hurd
patent: 3070987 (1963-01-01), Baker
patent: 3073146 (1963-01-01), Patriquin
patent: 3078705 (1963-02-01), Morrison
patent: 3125878 (1964-03-01), Gutman
patent: 3175378 (1965-03-01), Russell
patent: 3563071 (1971-02-01), Barger

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