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:
Mar. 19, 1991
Filed:
Jul. 16, 1990
Hermann Stadtfeld, Dielsdorf, CH;
Werkzeugmaschinenfabrik Oerlikon-Buhrle AG, Zurich, CH;
Abstract
For manufacturing a pinion of a pair of mating bevel gears having contact-line tooth bearing or crowning in accordance with the method developed by Litvin et al, the cutter radii of respective outer and inner blade edges in the duplex or double-cut method and therewith the centers of rotation of the cutter heads as well as the center of rotation of a generating gear are altered in relation to the settings for manufacturing the mating or meshing gear. This would require cutter heads provided with adjustable cutter radii. In order to render possible the use of commercially available cutter heads, provision is made for achieving the alternation of the cutter radii by inclination of the cutter-head axes.