The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1992
Filed:
Apr. 01, 1991
Stephen P Johnston, Hawley, MN (US);
Gene H Utke, Rochert, MN (US);
Robert G Klabunde, Detroit Lakes, MN (US);
S. J. Electro Systems, Inc., Detroit Lakes, MN (US);
Abstract
A sphere-actuated float switch including (i) a cage defining a longitudinal raceway, (ii) a yoke pivotally mounted externally to the cage and having first and second legs which extend into the raceway, (iii) an electrical switching means which is electrically open when the yoke is in a first position and electrically closed when the yoke is in a second position, (iii) an over-center spring capable of biasing the yoke into the appropriate electrically open and the electrically closed positions once the yoke is urged past a transition point, and (iv) a sphere within the raceway for urging the yoke between the electrically open and the electrically closed positions.