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:
Jan. 30, 1979
Filed:
Sep. 15, 1977
Jean-Francois Pfister, Sonceboz, CH;
Societe Industrielle de Sonceboz S.A., Sonceboz, CH;
Abstract
An electrical drive device comprising a stator arrangement of the claw pole type surrounding a stator chamber or compartment and producing therein at least one magnetic field containing at least one rotary field component. There is provided a permanent magnet-rotor arranged in such rotor chamber in such a manner that it rotates in synchronism with such magnetic field and a hysteresis magnetic coupling, the driving part of which is form-lockingly connected with such rotor and the driven part of which is force-lockingly secured to a shaft constituting the power take-off shaft of the drive device. The stator arrangement, the rotor, the driving part of the hysteresis magnetic coupling and the driven part of such coupling are all housed in a common housing.