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. 22, 2005
Filed:
Nov. 14, 2002
Applicant:
Udo Friese, Ahlen, DE;
Inventor:
Udo Friese, Ahlen, DE;
Assignee:
WF-Maschinenbau und Blechformtechnik GmbH & Co. KG, Sendenhorst, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D053/28 ; B23P015/14 ;
U.S. Cl.
CPC ...
Abstract
In a method of making a rotation-symmetrical gear member, an outer edge of a circular blank is shaped to form a concentric thickened area which extends in axial direction to thereby realize a ring structure. A remaining area of the circular blank is then shaped into a cap-like structure through application of compressive forces by means of a pressure roller such that the ring structure adjoins a sidewall of the cap structure and projects outwardly in radial direction. The ring is then formed with outer teeth in opposition to the sidewall.