Communications: electrical – Selective – Having indication or alarm
Patent
1986-05-02
1988-03-01
Rowland, James L.
Communications: electrical
Selective
Having indication or alarm
340603, G08B 2100
Patent
active
047289244
ABSTRACT:
A hollow tubular cartridge (4) is tethered on an insulated electrical lead (10) connected to a hand held box (18) containing sensing circuitry. The cartridge (4) is lowered into a fuel tank (12) for sensing water in the tank (18) by a reduced electrical resistance path between probe electrodes (6 and 8) on the cartridge (4) which is sensed by circuitry within the box (18).
REFERENCES:
patent: 3582930 (1971-06-01), Wiley
patent: 3670319 (1972-06-01), Ohtani
patent: 3909948 (1975-10-01), Markfelt
patent: 4410885 (1983-10-01), Stenstrom
patent: 4638291 (1987-01-01), Pascasu
Scully Facts, Scully WB100G Water Detector, Scully Signal Systems, 60578, Scully Signal Company, 70 Industrial Way, Wilmington, Mass. 01887.
Scully Facts, Scully Water Detector, Scully Signal Systems, 60577, Scully Signal Company, 70 Industrial Way, Wilmington, Mass. 01887.
Nelson Industries Inc.
Rowland James L.
Tumm Brian R.
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