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. 26, 2002
Filed:
Sep. 30, 1999
Craig W. Luttrell, Loganville, GA (US);
Reliance Electric Technologies, LLC, Mayfield Heights, OH (US);
Abstract
A method of making an electromechanical machine stator assembly in provided in which concentric coil groups are alternately inserted from both ends of the stator core. A first phase group is inserted through a first axial end of the stator core. A second phase coil group is then inserted through an opposite end of the stator core, such as by rotation of the stator core 180 degrees. Additional coil groups are similarly inserted into the stator core to complete the stator. The alternating insertion process provided a winding configuration utilizing a combination of full and shared slots of the stator core with leads exiting from both ends. The method permits the use of automated winding equipment in large induction motors, and facilitates subsequent connection to the stator coil leads.