Patent · US Expired

Method for producing the surface geometry of solenoids

US7328498B2 · kind B2 · utility

0Cited by

6References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Eckl · Amberg, DE
Ralph-Ronald Gobel · Amberg, DE
Johann Hofrichter · Schmidgaden, DE
Matthias Knab · Freudenberg, DE
Norbert Mitlmeier · Ursensollen, DE
Norbert Zimmermann · Sulzbach-Rosenberg, DE

Key dates

Filing date	Jan 31, 2003
Grant date	Feb 12, 2008
Priority date	—
Expiry date	Jul 15, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49105
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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 In the tensioned state, the pole surfaces are ground so that the solenoid, when withdrawn from the tensioning device, has a convex support surface constituted by the pole surfaces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.