Fluid handling – Liquid level responsive or maintaining systems – Electrical characteristic sensing
Patent
1991-12-26
1994-03-01
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
Electrical characteristic sensing
116109, 116202, 116227, 137558, 141 95, 141243, 222 66, 2221445, 340619, 340620, F16K 2118, F16K 3700, B67D 512
Patent
active
052898466
ABSTRACT:
An automatic water replenishing system is designed for use with multiple dye vats used for tinting eyeglass lenses, but the broad principles of the invention could apply to other systems used for replenishing individual ones of plural vats or reservoirs with water or some other liquid. A rotary water distributor rotates about an arc when it is signaled by water level sensors that the water in a particular vat is low. As the rotary distributor reaches the low reservoir, the LED carried by the distributor actuates a photo transistor adjacent the particular reservoir that needs replenishing, causing the motor to stop and the water supply solenoid valve to be actuated, filling the reservoir until a brief period of time after the level sensor indicates a full condition to the central control system.
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Chika Hani E.
Elias Tariq J.
Branscomb Ralph S.
Walton George L.
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