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:
Dec. 06, 1994
Filed:
Sep. 21, 1992
Applicant:
Inventors:
Michael F Coffman, Metamora, IL (US);
Steven W Judy, Chillicothe, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P / ; G01P / ; G01B / ;
U.S. Cl.
CPC ...
324165 ; 340672 ;
Abstract
An apparatus for determining the speed and direction of a rotating shaft is provided. The apparatus includes a rotor connected to the shaft. The rotor has a plurality of teeth of alternating widths. The apparatus detects the teeth and responsibly determines the speed and direction of rotation of the shaft.