Electronic liquid level control apparatus

Details Electronic liquid level control apparatus Electronic liquid level control apparatus

1981-02-23

1983-06-28

Yasich, Daniel M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

73304R, 137392, G05D 912, H01H 3518

Patent

active

043907938

ABSTRACT:
Liquid level control system in which there is a basic resistive level sensing electrode or probe extending into a vessel or tank containing liquid. In addition there is a conductive guard ring or shield insulated from both the probe and from the conductive member or portion of the body of the vessel. The guard ring electrode acts as a current source to counteract electrical leakage across the surfaces between the probe and vessel body to minimize the effects of leakage and maintain the liquid level sensing control operative under most leakage conditions by balancing the leakage currents. In the event the leakage becomes excessive, a control is activated to signal the excessive leakage condition in a suitable manner.

REFERENCES:
patent: 3119266 (1964-01-01), Atkinson
patent: 3783369 (1974-01-01), Chambers
patent: 3922564 (1975-11-01), Kackuk et al.
patent: 4019067 (1977-04-01), Gladstone
patent: 4027172 (1977-05-01), Hamelink
patent: 4259982 (1981-04-01), Bartels
patent: 4263587 (1981-04-01), John

Affiliated with

Also associated with

Rating

Electronic liquid level control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic liquid level control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic liquid level control apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-935595