Patent ID: 6584997
Filing Date: 2003-07-01
Classification: F02D,F02M,G05D,Y10T

Abstract:
A liquid transfer system for repeatedly transferring a liquid from a main liquid source to a container while preventing overflow of the container, the system comprising:a liquid path fluidly connecting the main liquid source to the container; an electrically controllable flow control device positioned along the liquid path for enabling controlled delivery of liquid through the liquid path from the main liquid source to the container along the liquid path; a first liquid level sensor operatively positioned relative to the container for sensing when the level of liquid within the container rises to a predetermined high level; a second liquid level sensor operatively positioned relative to the container for sensing when the level of liquid within the container rises to a predetermined extreme high level; a normally-closed switching device electrically connected between a source of electrical energy and the electrically controllable flow control device; and a normally-open switching device electrically connected between the normally-closed switching device and the electrically controllable flow control device; the second liquid level sensor being operatively connected to the normally-closed switching device for effecting the opening thereof when the level of liquid in the container reaches the predetermined extreme high level.