Automatic dilution system with overflow protection

Details Automatic dilution system with overflow protection Automatic dilution system with overflow protection

2007-11-27

2007-11-27

Soohoo, Tony G. (Department: 1723)

Agitating

Having specified feed means

Responsive to condition sensor

C366S182400, C422S263000, C137S087020

Reexamination Certificate

active

11078213

ABSTRACT:
A chemical solution dispensing apparatus uses a dissolving tank to hold a solid chemical cake. The dissolving tank delivers the chemical solution into a holding tank by gravitational flow and then to a receiving system. A liquid level sensor in the holding tank senses the liquid level of the solution and calls for water delivery through a conduit into the dissolving tank. When the level reaches a low point a circuit opens a inlet flow valve to deliver water into the dissolving tank. When the level reaches a high point, the circuit closes a safety shutoff valve in the conduit line. A pressure regulator and control relay enable the conduit line to be properly pressurized by an inlet source of water through a shutoff valve that is normally open. When the level in the holding tank rises above the high point, an alarm signal is released to initiate an audible alarm.

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