Anti-burglary sound emitting device

Details Anti-burglary sound emitting device Anti-burglary sound emitting device

1974-12-06

1976-05-18

Queisser, Richard C.

Signals and indicators

Combined functions

Burglar alarms

116 81, 116 85, 116112, 222192, G08B 1308, B67D 532

Patent

active

039570126

ABSTRACT:
An anti-burglary sound emitting device in which a pressurized fluid is discharged to audibly oscillate a diaphram to create a warning signal when an intruder opens a window or door to enter an area unauthorized to the intruder. The anti-burglary device employs a spring biased pressurized container for discharging a fluid through a passageway and diaphram valving structure. A mechanical trigger for releasably retaining a pressurized container in cocked position and for releasing the slidably mounted pressurized container to cause sound is described.

REFERENCES:
patent: 2541770 (1951-02-01), Lawrence
patent: 2570438 (1951-10-01), Flagge et al.
patent: 2626586 (1953-01-01), Mendes
patent: 3000344 (1961-09-01), Ferrell
patent: 3804053 (1974-04-01), Gray

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