Level sensor for stored fluids and particulate material
OwnerGilbert Kivensoninventor
Life of this patent
Estimating the term…
Abstract
A level sensing system for fluids and particulate material comprised of an immersed rotating body, an arrangement for measuring the resistance to rotation encountered by said body and a compensating method for reducing the effect of extraneous variables whereby said resistance varies primarily with changes in level. Output devices and controls attached to read and act from said resistance measurements can thus be calibrated in terms of fluid and particulate material levels in various storage vessels.
Claims5
An apparatus for detecting, remotely indicating and controlling the level of materials contained in walled vessels at varying temperatures comprising in combination:
- a. means for rotating a vertically oriented and elongated body through said materials;
- b. means for making measurements of the resistance to motion encountered by said vertically oriented and elongated body as it rotates and for converting said measurements to equivalent signals;
- c. means for the transmission of said signals to indicating and control devices positioned externally to said vessels;
- d. means for the compensation of temperature induced changes in the said resistance to motion offered by said materials.
Dependencies are inferred from the claim text.