Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1997-09-15
2000-08-01
Walton, George L.
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137197, 137392, 73304R, F16K 3104, F16K 3112
Patent
active
060951788
ABSTRACT:
A system for monitoring and controlling the level of liquid in a closed cainer includes a block for mounting at an upper end of the container, a lower level electrode for extending from the block vertically into the container, an upper level electrode for extending from the block vertically into the container and shorter than the lower level electrode, a valve for venting gas from the container, and a motor for driving the valve. Electric circuitry is responsive to liquid in the container rising to a free end of the upper level electrode to activate the motor to close the valve to increase gas pressure in the container to force lowering of the level of the liquid, and further electrical circuitry is responsive to the liquid in the container dropping below a free end of the lower level electrode to activate the motor to open the valve to vent the container and reduce gas pressure therein to permit rising of the liquid level.
REFERENCES:
patent: 2411986 (1946-12-01), Cowherd
patent: 3279379 (1966-10-01), Klyce
patent: 3342204 (1967-09-01), Royce
patent: 3416547 (1968-12-01), Glenn, Jr. et al.
patent: 3481350 (1969-12-01), Chamberlain
patent: 3599666 (1971-08-01), Curtis et al.
patent: 3743444 (1973-07-01), Kazama et al.
patent: 3922564 (1975-11-01), Kachuk et al.
patent: 4061442 (1977-12-01), Clark et al.
patent: 4120656 (1978-10-01), Henningsen
patent: 4182363 (1980-01-01), Fuller
patent: 4576552 (1986-03-01), Smith.
patent: 4715398 (1987-12-01), Shouldice et al.
patent: 4879902 (1989-11-01), Loniello
patent: 5511950 (1996-04-01), Agata
patent: 5544672 (1996-08-01), Payne et al.
patent: 5771917 (1998-06-01), Carney et al.
patent: 5871028 (1999-02-01), Liu
Gilbert Paul A.
Jobe Terry V.
McEwen Thomas Vertis
Morrow Johnny Lee
Marsh Luther A.
U.S. Army Corps of Engineers as represented by the Secretary of
Walton George L.
LandOfFree
System for monitoring and controlling the level of a liquid in a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for monitoring and controlling the level of a liquid in a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for monitoring and controlling the level of a liquid in a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-654369