Lock condition indicator device

Details Lock condition indicator device Lock condition indicator device

1995-09-05

1997-01-21

Meyers, Steven N.

Locks

Parts, attachments, accessories and adjuncts

Condition indicators

70395, 70438, E05B 4100

Patent

active

055950809

ABSTRACT:
A lock condition indicator device which is adapted for affixation to a key for a cylinder lock has a substantially circular movable means adapted to be retained in juxtaposition to a head portion of the key, but rotatable about a longitudinal axis of the key when an engaging means on the circumference of the movable means encounters an obstructing means on an outer surface of the lock, resulting in the movable means being rotated into one of a plurality of indicator positions.

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patent: 4908605 (1990-03-01), Takatsuka
patent: 4936896 (1990-06-01), Takatsuka
patent: 5435160 (1995-07-01), Linsalato et al.

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