Patent · US Expired

Synchronous linear motor with improved means for positioning and fastening permanent magnets

US5952742A · kind A · utility

37Cited by

7References

7Claims

0Family size

Assignees

KraussMaffei GmbH · DE
InTraSys GmbH · DE

Inventors

Dietmar Stoiber · Grünwald, DE
Peter Rosner · Usedom, DE

Key dates

Filing date	Oct 2, 1996
Grant date	Sep 14, 1999
Priority date	—
Expiry date	Oct 2, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/27
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A synchronous linear motor with primary part having a winding and a secondary part including an elongated bearing plate to which the pre-magnetized permanent magnets of brittle and corrosion-prone material, are firmly adhesively secured while maintaining the pole pitch grid. In order to be able to securely bond the pre-magnetized permanent magnets to the secondary part economically and with high precision, it is proposed that spacers (2,3) corresponding to the pole pitch grid of the synchronous linear motor be arranged between pre-magnetized permanent magnets (4).

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