Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1983-05-23
1986-12-16
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
123 4105, 340606, 340608, 340984, 440 2, 374145, 374148, G08B 2100, G08B 2300, H05B 606
Patent
active
046300368
ABSTRACT:
An early warning system detects the failure of a marine cooling system by monitoring a resistance ground signal generated by a sensing element inserted into the cooling system. An alarm is given upon the detection of an increased resistance value of the resistance ground signal due to cessation or a severe reduction of water flow through the cooling system and hence contacting the sensing element. The sensing element is preferably inserted into the exhaust system portion of a marine engine cooling system and a detection circuit is connected to the sensing element. An alarm signal is generated by the detection circuit if insufficient water flow is present to maintain a low resistance value for the resistance ground signal generated by the sensing element. Such low resistance signal is maintained either by the electrical conduction of the water or the cooling effects of the water on the sensing element.
REFERENCES:
patent: 2957348 (1960-10-01), Walker, Jr.
patent: 3343004 (1967-09-01), Ovshinky
patent: 3475745 (1969-10-01), White, Jr.
patent: 3860837 (1975-01-01), Carlson
patent: 3864260 (1975-02-01), Banner
patent: 3908578 (1975-09-01), Buelk
patent: 3921398 (1975-11-01), Kashmerick
patent: 3955416 (1976-05-01), Waiwood
patent: 4036162 (1977-07-01), Maier et al.
patent: 4078531 (1978-03-01), Hewitt
patent: 4135186 (1979-01-01), Minorikawa et al.
patent: 4160733 (1979-07-01), Nelson
patent: 4196361 (1980-04-01), Nakata
patent: 4278970 (1981-07-01), Streczyn
patent: 4350010 (1982-09-01), Yukishima
patent: 4364226 (1982-12-01), Croset et al.
patent: 4556330 (1985-12-01), Regtien
patent: 4564834 (1986-01-01), Steele
patent: 4587931 (1986-05-01), Duprez
News release entitled "`Failsafe` Condition Monitoring System Fitted on SSV2", Joseph Lucas Ltd. of England, May 1972.
Rowland James L.
Swarthout Brent A.
Vernay Laboratories, Inc.
LandOfFree
Early warning of marine cooling system failure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Early warning of marine cooling system failure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Early warning of marine cooling system failure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-247377