Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1977-08-24
1979-08-21
Caldwell, Sr., John W.
Communications: electrical
Condition responsive indicating system
Specific condition
340605, 73304R, G08B 2100
Patent
active
041655095
ABSTRACT:
A liquid level monitoring system functions by applying an alternating voltage to a probe. When the liquid level in a reservoir touches the probe, a low impedance to ground is present, thereby permitting current to flow to ground. When the liquid level falls below the probe, a high impedance to ground is created and current flows to a detector. The detector switches on an alarm which flashes an appropriate warning.
REFERENCES:
patent: 3694804 (1972-09-01), Hill
patent: 3978463 (1976-08-01), Kerscher
Betts Donald J.
Hamilton Martin W.
Caldwell Sr. John W.
Crist E.
Eaton Corporation
Johnston R. A.
McCloskey R. J.
LandOfFree
Dual liquid level monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual liquid level monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual liquid level monitor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1325368