Swimming pool alarm

Details Swimming pool alarm Swimming pool alarm

1997-11-04

1999-09-28

Lee, Benjamin C.

Communications: electrical

Condition responsive indicating system

Specific condition

3405731, 3405734, 340553, 367 93, 367 94, G08B 2300

Patent

active

059595345

ABSTRACT:
A method and apparatus for detecting unauthorized or accidental entry of an object into a body of water is disclosed, wherein the frequency or frequency range of sound waves in a body of water generated by the entry of the object into the body of water is determined. Then the sound waves having the frequency generated in the body of water are detected and an electrical output waveform representative of the amplitude of the sound wave in the frequency is generated. The amplitude of the electrical output waveform is subsequently averaged, so that an alarm signal is generated when the amplitude of the electrical output waveform exceeds the averaged amplitude by a predetermined value in a predetermined period of time. Once the alarm signal is generated an alarm is activated.

REFERENCES:
patent: 2071933 (1937-02-01), Miessner
patent: 2655645 (1953-10-01), Bagno
patent: 2783459 (1957-02-01), Lienau et al.
patent: 2832915 (1958-04-01), McCoy
patent: 3155954 (1964-11-01), Larrick et al.
patent: 3158850 (1964-11-01), Poznanski
patent: 3486166 (1969-12-01), Campana et al.
patent: 3504145 (1970-03-01), Layher
patent: 3513463 (1970-05-01), Stevenson et al.
patent: 3732556 (1973-05-01), Caprillo et al.
patent: 3740704 (1973-06-01), Suter
patent: 3810146 (1974-05-01), Lieb
patent: 3867711 (1975-02-01), Ruscus
patent: 4121200 (1978-10-01), Colmenero
patent: 4131887 (1978-12-01), Birkenhead
patent: 4170769 (1979-10-01), Morris et al.
patent: 4187502 (1980-02-01), Beverly et al.
patent: 4189722 (1980-02-01), Lerner
patent: 4196423 (1980-04-01), Carver et al.
patent: 4203097 (1980-05-01), Manning
patent: 4213197 (1980-07-01), Magori
patent: 4260980 (1981-04-01), Bates
patent: 4290126 (1981-09-01), McFadyen et al.
patent: 4346374 (1982-08-01), Groff
patent: 4349897 (1982-09-01), Boehme et al.
patent: 4541080 (1985-09-01), Kodaira
patent: 4639902 (1987-01-01), Leverance et al.
patent: 4747085 (1988-05-01), Dunegan et al.
patent: 4853691 (1989-08-01), Kolbatz
patent: 5043705 (1991-08-01), Rooz et al.
patent: 5049859 (1991-09-01), Arnell
patent: 5091714 (1992-02-01), de solminihac
patent: 5121104 (1992-06-01), Nelson et al.
patent: 5268673 (1993-12-01), Nelson et al.
EDO Corp.--Piezoelectric Ceramics Catalog.
Mastroc--Guide to Modern Piezoelectrice Ceramics Catalog--Mar. 1993.
PCT Written Opinon, dated Sep. 7, 1995.
The New Encyclopaedia Britannica, vol. 27, 15th Edition, Sound, 1987, pp. 626-631.
Brochure: 20 Eye Opening Reasons Pool's Eye Is The Best Surveillance System You Can Buy, Splash Industries, Inc. Nov. 14, 1993.
Video: Where's Katy?, Splash Industries, Inc., first shown Nov. 14, 1993.

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