Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1984-02-13
1986-02-18
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
367136, 367162, 367166, 367157, G08B 1300
Patent
active
045715793
ABSTRACT:
A swimming pool alarm consists of a sensor suspended beneath the water surface of the pool, including an electrical resonator element and a captive element agitatable by the pool water adjacent the resonator element, and an alarm device external of the pool which responds to the amplitude of resonance of the resonator element exceeding a certain level.
REFERENCES:
patent: 2423459 (1947-07-01), Mason
patent: 2659829 (1953-11-01), Baerwald
patent: 2741754 (1956-04-01), Miller
patent: 2832915 (1958-04-01), McCoy
patent: 2942247 (1960-06-01), Lienau et al.
patent: 3192470 (1965-06-01), Wadey
patent: 3681750 (1972-08-01), Larka
patent: 3810146 (1974-05-01), Lieb
patent: 3969712 (1976-07-01), Butman et al.
patent: 4013992 (1977-03-01), Dewberry et al.
patent: 4170769 (1979-10-01), Morris et al.
patent: 4187502 (1980-02-01), Beverly et al.
patent: 4322714 (1982-03-01), Morgan
patent: 4490640 (1984-12-01), Honda
Mullen Jr. Thomas J.
Rowland James L.
LandOfFree
Swimming pool alarm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Swimming pool alarm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Swimming pool alarm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1552451