Personal security alarm

Details Personal security alarm Personal security alarm

1979-02-05

1980-12-23

Caldwell, Sr., John W.

Communications: electrical

Systems

Plural

340321, 340327, 340331, 340371, 340384E, 362186, 362363, G08B 700, G08B 500

Patent

active

042413320

ABSTRACT:
A personal security alarm including a loud speaker powered by an audio frequency signal generator to produce a siren effect and a high intensity flashlamp, both of which are activated upon operation of a remote switch and can be deactivated only by a key switch on the alarm. A generally conical transparent plastic extension from the center of the loud speaker horn encloses the flashlamp and also disperses the sound. Preferably the high voltage power for the flashlamp is derived from a transformer supplied with the audio frequency signal provided to the loud speaker.

REFERENCES:
patent: 2809366 (1957-10-01), Van Boort et al.
patent: 3786498 (1974-01-01), Lipe et al.
patent: 3898514 (1975-08-01), Takahashi
patent: 4101880 (1978-07-01), Haus

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