Burglar alarm

Details Burglar alarm Burglar alarm

1982-05-21

1983-11-15

Frankfort, Charles E.

Signals and indicators

Combined functions

Alarms with indicators

116 78, 116 86, 116 16, 116100, G08B 1702

Patent

active

044149123

ABSTRACT:
The invention is an improved burglar alarm for doors and windows or other similar openings in an enclosure to be protected against secretive entry. The invention consists of a series or plurality of bell-like devices which are automatically dumped or knocked to the floor when entry is made, thus creating an alarm noise. The alarm is operable on doors or windows that swing or slide, or which open inwardly or outwardly. The alarm is of simple construction and easy to install, consisting of a plurality of bell-like elements, a supporting rod, mounting apparatus for the supporting rod, and a wiper member for certain mounting positions.

REFERENCES:
patent: 787358 (1905-04-01), Day
patent: 1419954 (1922-06-01), Brichetto
patent: 1798207 (1931-03-01), Koeune
patent: 2546463 (1971-03-01), Lustig
patent: 2561743 (1951-07-01), Kusharowis
patent: 2601839 (1952-07-01), Kucewicz
patent: 4098509 (1978-07-01), Van Krevelen
patent: 4203383 (1980-05-01), Hill

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