Lock assembly with a curved keyway and a flexible key for actuat

Details Lock assembly with a curved keyway and a flexible key for actuat Lock assembly with a curved keyway and a flexible key for actuat

1995-12-04

1997-09-30

Dino, Suzanne

Locks

Operating mechanism

Key

70399, 70419, 70453, 70407, E05B 904

Patent

active

056716230

ABSTRACT:
A lock assembly includes a lock and a flexible key. The lock includes a lock and an elongated plug unit having a longitudinal curved keyway that is accessible by the key. The keyway has several turns and several branch slots, each of which extends from one of the turns of the curved keyway in a direction different from that of a portion of the curved keyway succeeding the turn so as to mislead an undesirable flexible stick into the slot.

REFERENCES:
patent: 2044381 (1936-06-01), Denull
patent: 3343386 (1967-09-01), Hall
patent: 3465556 (1969-09-01), McIlvenny
patent: 3478549 (1969-11-01), Schlage
patent: 3494159 (1970-02-01), Greenwald
patent: 4111019 (1978-09-01), Rabinow
patent: 4599877 (1986-07-01), Rabinow
patent: 5086632 (1992-02-01), Hsu
patent: 5131247 (1992-07-01), Hsu

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