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:
Jul. 08, 1980
Filed:
May. 12, 1977
Applicant:
Inventor:
Erich Kotthaus, Wallisellen, CH;
Assignee:
Werkzeugmaschinenfabrik Oerlikon-Buhrle, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F / ; B23F / ;
U.S. Cl.
CPC ...
409 26 ; 409 30 ; 409 53 ;
Abstract
A method of producing pairs of mating spur gears by cutting tooth gaps with a rotating end cutter head, wherein, in order to manufacture the one spur gear, one of the elements--the spur gear or the end cutter head--carries out an arcuate or circular rolling movement about an axis which coincides or approximately coincides with the gear axis of the other gear, and the other gear is produced by a cutting-in depth or plunge cut operation without any rolling movement.