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:
Aug. 14, 1990
Filed:
Oct. 12, 1988
Udo Schapp, Wessling, DE;
Josef Lohrer, Munich, DE;
Carl Hurth Maschinen- und Zahnradfabrik GmbH & Co., Munich, DE;
Abstract
A method for the precision working of crowned tooth flanks of particularly hardened gears with a two-flank abutment and at crossed axes with an abrasive gear-shaped or rack-shaped tool, in which the tool carries out several back and forth feed movements relative to the workpiece in a direction X extending at an angle .epsilon. inclined with respect to the workpiece axis 4 and a plunge feed movement in the sense of a center-distance reduction. The tool does not have corrected teeth. The crowning is created only at the end of the precision working during at least one back and forth feed movement without a plunge feed movement.