Key safe

Details Key safe Key safe

1985-08-26

1986-10-07

Pate, III, William F.

Safes, bank protection, or a related device

Supports and mountings

109 46, 109 59R, 70 63, 70388, 49171, 49379, 49394, E05G 100, E06B 728

Patent

active

046152814

ABSTRACT:
In combination with a building door, there is provided a key safe for a door key comprising an open ended housing secured within and projecting through the door. A safe door is hinged to and closes one end of the housing and has a retractable latch bar engageable with the building door to lock the safe door. A combination lock on the safe door includes a normally open printed circuit connected to a power source. A solenoid is connected to the circuit and includes a plunger connected to the latch bar. A tamper proof key tray is nested within the housing and normally spring biased for ejection inwardly of the building door. A first detent assembly is interposed between the safe door and tray so that any forceful opening of the safe door disengages the detent assembly.

REFERENCES:
patent: 2253332 (1941-08-01), Jackson
patent: 2732816 (1956-01-01), Stein
patent: 2737910 (1956-08-01), Shuman
patent: 3084008 (1963-04-01), Mallett
patent: 3411046 (1968-11-01), Swannick
patent: 3795417 (1974-03-01), Cohen
patent: 4296617 (1981-10-01), Campagna

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