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:
Sep. 26, 2000
Filed:
Nov. 13, 1998
Applicant:
Inventor:
David L Kordecki, Elkhart, IN (US);
Assignee:
CTS Corporation, Elkhart, IN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01P / ; H02K / ;
U.S. Cl.
CPC ...
3242072 ; 324174 ; 32420712 ; 32420725 ; 310 / ;
Abstract
According to the present invention, a zero-speed rotary pulse generator is disclosed. The zero-speed rotary pulse generator detects and counts shaft rotation of DC motors. The invention measures the rotation of a shaft by being coupled to a disc-shaped magnet having alternating polarity on its face. The magnet rotates at the same speed as the motor. Positioned close to the rotating magnet is a Hall effect device that can sense the alternating magnet polarity as the shaft rotates. The Hall effect device provides a digital output based upon the direction and the strength of the magnetic field it senses.