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:
Jun. 11, 2002
Filed:
Jun. 01, 1999
Elmer C. Allwine, Santa Clara, CA (US);
CTS Corporation, Elkhart, IN (US);
Abstract
In a non-contacting angular position sensor ( ), an angular positioning of a rotating object, such as a crankshaft, is measured by a Hall effect device ( ) that remains stationary in an air gap ( ) between two discs ( ), both coupled to the rotating object via a shaft ( ). A ring magnet ( ) is attached to one of the two discs ( ) that has a groove ( ) therein. The groove ( ) varies in width from a wide region ( ) to a narrow region ( ). There is a transition region ( ) between where the groove ( ) is narrowest and where it is widest. As the shaft ( ) rotates, the Hall effect device ( ) senses a magnetic field that varies with the width of the groove ( ), thereby measuring the angular position of the rotating object coupled to the shaft ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile