Communications: electrical – Systems – Call station
Patent
1973-09-19
1976-03-02
Habecker, Thomas B.
Communications: electrical
Systems
Call station
340332, G08B 2100
Patent
active
039421678
ABSTRACT:
Apparatus responsive to immersion in water to complete an electrical circuit through which a signalling means is energized from an electrical energy source includes a sensor which is salt or fresh water actuated depending on the sensitivity of the circuitry utilized in conjunction with the sensor. The sensor comprises an outer peripheral shield, such as an outer conductor, and an inner conductor, or pair of inner conductors, wherein air holes or slots are provided in the outer shield so as to enable the venting of air from within the interior of the outer shield at substantially any depth of immersion of the sensor in water less than total immersion while preventing the inadvertent entry of splash water prior to such immersion. In this manner water may enter within the outer shield interior to contact the conductor elements and complete the electrical circuit at immersion depths where the water pressure is normally insufficient to cause such entry without venting of the air.
REFERENCES:
patent: 2452615 (1948-11-01), Thomson
patent: 2792566 (1957-05-01), Shanhouse
patent: 2999230 (1961-09-01), Laakmann
patent: 3311983 (1967-04-01), Green
LandOfFree
Immersion responsive sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Immersion responsive sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Immersion responsive sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1281716