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:
Feb. 12, 2008
Filed:
Jan. 31, 2003
Peter Eckl, Amberg, DE;
Ralph-ronald Göbel, Amberg, DE;
Johann Hofrichter, Schmidgaden, DE;
Matthias Knab, Freudenberg, DE;
Norbert Mitlmeier, Ursensollen, DE;
Norbert Zimmermann, Sulzbach-Rosenberg, DE;
Peter Eckl, Amberg, DE;
Ralph-Ronald Göbel, Amberg, DE;
Johann Hofrichter, Schmidgaden, DE;
Matthias Knab, Freudenberg, DE;
Norbert Mitlmeier, Ursensollen, DE;
Norbert Zimmermann, Sulzbach-Rosenberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for producing a solenoid with a center limb and two outer pole shanks that have one pole surface each and one back resting so that it faces away from it. The back is first at least partially freely formed. The solenoid is then elastically tensioned towards the back by a tensioning device. In the tensioned state, the pole surfaces are ground so that the solenoid, when withdrawn from the tensioning device, has a convex support surface constituted by the pole surfaces.