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. 15, 1987
Filed:
Apr. 04, 1986
Ulrich Vetter, Stuttgart, DE;
Schaudt Maschinenbau GmbH, Stuttgart, DE;
Abstract
The surface of a rotating cylindrical workpiece is monitored by an optical testing unit while the workpiece rotates and is treated by the grinding wheel in a circular grinding machine. The optical testing unit is mounted in part on one sensor of a second testing unit which monitors the diameter of the surface of the workpiece. A transducer and a light source of the optical testing unit are remote from the one sensor and are connected by fiber optic conductors with a head which is recessed into the one sensor and focuses light upon the surface of the rotating workpiece and intercepts light which is reflected by the workpiece. Lubricant which coats the surface of the workpiece in the course of the grinding operation is blown away from such surface in the region where the light beam is focused upon the workpiece.