Patent ID: 6443005
Filing Date: 2002-09-03
Classification: G01F,H01H

Abstract:
A fluid level system, comprising:a vessel adapted to hold a fluid therein; and a fluid pressure sensing and switching apparatus, the apparatus including a first member having an area normally exposed to the fluid and responsive to a fluid pressure wherein each such fluid pressure corresponds to a certain fluid level, a second member providing a force against the first member in an opposite direction from the force exerted by the pressure of the fluid on the exposed area of the first member, the first member normally disposed at a first, lower elevation within the vessel and connected proximate a first end of the apparatus, one or more switches, said one or more switches disposed within the apparatus at a second end and normally disposed at a second, higher elevation within the vessel above the fluid level within the vessel, and a force translation and switch actuation member adapted to actuate the one or more switches in response to a predetermined fluid level within the vessel such that, for every incremental distance change in position of the force translation and switch actuation member between a first and second position, a greater incremental distance change in fluid elevation within the vessel is being represented corresponding to a first and second fluid level within the vessel.