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:
Aug. 13, 1985
Filed:
Aug. 01, 1983
Dominic Arbisi, Minnetonka, MN (US);
Roger E Mitchell, Minneapolis, MN (US);
Other;
Abstract
An impulse motor includes a stator and a rotor concentrically mounted about a rotational axis. A plurality of flat primary drive coils are circumferentially arranged around the stator and are connected in a parallel circuit. The primary drive coils are oriented to produce magnetic fields in radial directions when energized. The rotor is positioned inside the stator and has a plurality of electrically conductive elements circumferentially arranged around it. A plane formed by each conductive element is parallel to the rotational axis and is tilted a predetermined angle off a perpendicular formed with a radial axis. The magnetic fields produced by the primary drive coils induce circulating currents in the conductive elements. The circulating currents in the conductive elements in turn produce magnetic fields in directions generally orthogonal to the plane of the conductive elements. The magnetic fields of the conductive elements and the primary drive coils interact to create opposing forces with a resultant circumferential component which causes rotational motion of the rotor.