Patent ID: 7300196
Filing Date: 2007-11-27
Classification: B01F,Y10T

Abstract:
1. A dispensing apparatus comprising: a dissolving tank enabled by volume thereof for receiving a solid chemical cake; a holding tank communicating with the dissolving tank for gravitational flow of a liquid chemical mixture from the dissolving tank to the holding tank for delivery of the chemical mixture to a system using such mixture; a liquid level sensor engaged within the holding tank for sensing a liquid level therein; a water delivery conduit interconnecting a source of water to the dissolving tank, the water delivery conduit providing: a) a pressure regulator; b) an electrically operated normally closed inlet flow valve; and c) an electrically operated normally open safety shutoff valve; and a timer; the liquid level sensor in the holding tank interconnected for signal communication with the inlet flow valve and the safety shutoff valve, such that with the liquid level at a low liquid level point in the holding tank the inlet flow valve is opened enabling water flow from the source of water into the dissolving tank, and with the liquid level above a high liquid level point in the holding tank the safety shutoff valve is closed, preventing water flow into the dissolving tank; the timer engaged with the inlet flow valve for closing the inlet flow valve after a selected open inlet flow valve time duration.