Patent · US Expired

Electric motor with circulator pump

US7484941B2 · kind B2 · utility

2Cited by

12References

20Claims

0Family size

Assignees

Oliver Laing · DE
Karsten Laing · DE
Birger Laing · DE

Inventors

Karsten Laing · Althütte, DE
Zoltan Jagasics

Key dates

Filing date	Oct 3, 2002
Grant date	Feb 3, 2009
Priority date	—
Expiry date	Oct 3, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2201/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

To create an electric motor, comprising a rotor and a stator, whereby the rotor is spherically supported, which motor has a high efficiency, it is proposed, that the rotor produces a magnetic field, that the surface of the rotor facing the stator has a spherical configuration, that the rotor and stator are adapted to each other so that a maximal magnetic attraction force which keeps the rotor on the spherical bearing is larger than the maximal axial counterforce.

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