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:
Feb. 07, 1989
Filed:
Jun. 29, 1987
Gene J Seider, Bloomington, MN (US);
FMC Corporation, Chicago, IL (US);
Abstract
A linear belt motor, especially useful for driving a land vehicle, having a pair of sprockets with a belt trained over them. Permanent magnets are attached to the belt and u-shaped stator poles are positioned astraddle the belt between the sprockets. Windings on the stator poles are connected with a control circuit means for independently determining the speed and torque output of the motor and its direction of rotation. Each stator pole has large radius faces and a width which is substantially twice that of the permanent magnets. A second embodiment employs a second belt also provided with permanent magnets and u-shaped stator poles having their windings also energized by the control circuit means.