Keyhole sighter

Locks – Parts – attachments – accessories and adjuncts – For key-operated mechanism

Patent

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Details

E05B 1508

Patent

active

042953502

ABSTRACT:
A keyhole sighting device for mounting on a key receiving member at a kehole therein. A shell projects forward from the key receiving member and has a funnel-like interior cavity converging toward and terminating in a key receiving opening for mechanically guiding a key to a keyhole within said key receiving opening. The shell is of elastomeric, light emitting material and is fixed to the key receiving member as by a rearwardly extending elastomeric skirt or rearward facing adhesive layer. A modification employs a light reflecting (e.g. white or light colored) material surface rather than a light emitting material to enhance visibility in the dark.

REFERENCES:
patent: 2566490 (1951-09-01), Heinz
patent: 2579146 (1951-12-01), Heinz
patent: 2941392 (1960-06-01), Byrne
patent: 2993362 (1961-07-01), Baccolla

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