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:
Jun. 15, 1993
Filed:
Oct. 24, 1991
Applicant:
Inventors:
Erich Sieger, Friedrichshafen, DE;
Detlef Muller-Wiesner, Harpstedt, DE;
Michael Schnellbugel, Meckenbeuren, DE;
Assignee:
Zeppelin-Metallwerke GmbH, Friedrichshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 69 ; 72 84 ;
Abstract
A process and a device for metal spinning a blank into a formed part, especially into a vessel bottom, are described, which can be used for forming materials including materials which are difficult to deform, with high dimensional accuracy and/or high degrees of deformation. For attaining this object, the blank is clamped on its circumference and forced freely, i.e. without using a spinning chuck, into a clearance by means of a motion-controlled spinning tool until its finished dimension is reached.