Door retainer and alarm device

Details Door retainer and alarm device Door retainer and alarm device

1979-12-03

1981-12-22

Moore, Richard E.

Closure fasteners

Bolts

Sliding

E05B 4700

Patent

active

043067441

ABSTRACT:
A door retainer and alarm device for retaining a swinging door in a closed position in a door frame and actuating an alarm. The retainer includes an electrical switch which may be wired to an alarm so that when the door is opened without authorization the alarm is actuated. The retainer automatically holds the door in a closed position in the door frame.

REFERENCES:
patent: 2497697 (1950-02-01), Smith
patent: 2586900 (1952-02-01), Alderman
patent: 2786701 (1957-03-01), Povlich
patent: 3426166 (1969-02-01), Canceill
patent: 3431002 (1969-03-01), Melgaard
patent: 3751086 (1973-08-01), Geringer
patent: 4155576 (1979-05-01), Kennon

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