Submerged alarm device for monitoring swimming pools

Details Submerged alarm device for monitoring swimming pools Submerged alarm device for monitoring swimming pools

1990-12-21

1992-11-10

Ng, Jin F.

Communications: electrical

Condition responsive indicating system

Specific condition

340573, 367136, 367188, 367151, G08B 1300

Patent

active

051627779

ABSTRACT:
An alarm device is placed in the water of a swimming pool for monitoring the swimming pool by triggering an alarm in response to changes in water pressure or sound as a result of persons falling into the swimming pool. The device includes a switch element and wave detector, as well as an acoustic alarm. A covering device or shelf, placed below the water surface and above the detector device is an integral component of the alarm device. The covering device includes a parabolically designed wall which is placed around the detector and is in hydraulic connection with it.

REFERENCES:
patent: 2761117 (1956-08-01), Green
patent: 3482237 (1969-12-01), Hamburg
patent: 4348750 (1982-09-01), Schwind

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