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:
May. 08, 1990
Filed:
Dec. 16, 1988
Hubert Vaillant de Guelis, Aubergenville, FR;
Patrice Jamain, Maule, FR;
Jean-Pierre Roland, Vetheuil, FR;
Aerospatiale Societe Nationale Industrielle, Paris, FR;
Abstract
A polyphase electric motor including a body mobile relative to a fixed body, one of these bodies carrying an exciter strip formed by a plurality of alternating coil windings aligned with each other and connected to an energizer device including a switch adapted to excite the pluralities of coils alternately, the other body comprising a row of alternating magnets and, one on each side of this row, two magnetic bars determining along the row an airgap of constant width in which the exciter strip is disposed. The permanently magnetized row is disposed parallel to the magnetization directions of the magnets constituting it between two continuous magnetic plates.