Patent Number: 6,253,611

Title: Magnetic float type liquid level gauges

Abstract: Liquid level indicators include an upright cylindrical tube of non-magnetic material, a cylindrical, permanent first magnet element aligned with and movable coaxially within the tube, a float, and an annular, permanent second magnet element aligned with and movable coaxially outside the tube. The first and second magnet elements have magnetic fields in alignment with one another, with one of the first and second magnet elements being carried by the float. The first and second magnet elements are axially spaced relative to one another such that the one magnet element which is carried by the float supports by magnetic attraction the other magnet element which is not carried by the float.

Inventors: Varga; Otto Herman (Bradford on Avon, GB), Carter; Jason (Bristol, GB)

Assignee: Seetru Limited

International Classification: G01F 23/30 (20060101); G01F 23/72 (20060101); G01F 23/76 (20060101); G01F 023/56 (); G01F 023/76 ()

Expiration Date: 07/03/2018