Fluid handling – Liquid level responsive or maintaining systems – Electrical characteristic sensing
Patent
1996-01-24
1997-12-09
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
Electrical characteristic sensing
73304R, 137358, 101350, 340620, F16K 2118, F16K 3102, F16K 3700
Patent
active
056949740
ABSTRACT:
A fluid level detection system (50) for ink in a printing press (10) having a vessel (58) having walls (60) defining a chamber (62), an elongated rotatable shaft (64) in the chamber (62), a motor (66) for rotating the shaft (64), an elongated flexible blade (68) affixed to the shaft 64 such that the motor (66) rotates the blade (68), and a proximity sensor (72) adjacent the walls (60) of the vessel (58) to detect the rotating blade (68) in the absence of ink at the level of the blade (68), with the blade (68) flexing in the presence of ink such that the sensor (72) does not detect the blade (68).
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Czajka Frank R.
Manser John W.
Niemiro Thaddeus A.
Vucko Joseph
Whiting Frederick J.
Goss Graphic Systems Inc.
Walton George L.
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