Patent 7513393 was granted and assigned to Lincoln Industrial Corporation on April, 2009 by the United States Patent and Trademark Office.
A container system of this invention includes a container for holding a fluid, a follower in the container which moves in the container in response to a change in a level of fluid in the container, and a sensor assembly for sensing the level of fluid in the container. The sensor assembly is especially (albeit not exclusively) suited for viscous fluids.