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:
Nov. 22, 1994
Filed:
Nov. 12, 1992
Applicant:
Inventors:
Stephen R Cooper, Tustin, MI (US);
Mark R Wheeler, Caditlor, MI (US);
Assignee:
Nartron Corporation, Reed City, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; H01F / ;
U.S. Cl.
CPC ...
32420717 ; 32420713 ; 32420722 ; 32420725 ; 336 20 ;
Abstract
A multi-turn rotational position sensor. A spirally wound conductor has an inner end coupled to a rotatable shall through a transmission. As the shaft rotates, the spirally wound conductor changes shape. The spirally wound conductor is inductively coupled to a transfcrmer secondary and the transformer coupling between the spirally wound conductor changes as the shaft rotates. An output from the transformer secondary is used to determine the shaft's rotational position.