Swimmer protection and pool safety warning device

Details Swimmer protection and pool safety warning device Swimmer protection and pool safety warning device

1990-09-21

1992-03-17

Swann, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340529, 367910, G08B 2300

Patent

active

050972545

ABSTRACT:
A swimmer protection and pool safety warning device comprises a portable sonic signal generating member worn by a swimmer in a pool, the signal generating member having a switch or similar device which is activated at a predetermined depth. Also included is a timer for detecting immersion at said predetermined depth for a predetermined time. On immersion occurring at the predetermined depth for the predetermined time, a sonic signal is generated, and detected by a receiver mounted in the pool. An alarm signal is generated to operate an alarm device. Calibration of the source signal generating member can be provided.

REFERENCES:
patent: 3587038 (1971-06-01), Massa, Jr.
patent: 3686656 (1972-08-01), Richards
patent: 3810146 (1974-05-01), Lieb
patent: 3867711 (1975-02-01), Ruscus
patent: 4635242 (1987-01-01), Hart
patent: 4820953 (1989-04-01), Saubolle et al.
patent: 4932009 (1990-06-01), Lynch

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