Patent · US Active

Secondary part of an electrical machine

US7638916B2 · kind B2 · utility

5Cited by

17References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Hoppe · Lemgo, DE
Zeljko Jajtic · Birkenfeld, DE
Gerhard Matscheko · Starnberg, DE
Christian Volmert · Munich, DE

Key dates

Filing date	Mar 21, 2007
Grant date	Dec 29, 2009
Priority date	—
Expiry date	Mar 21, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02K21/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A secondary part of an electric machine has a toothed profile, with at least one tooth being unlaminated. The at least one tooth is made of at least two materials, wherein the at least one tooth forms a cavity which is filled with an iron-containing material representing one of the two materials.

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