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:
Nov. 13, 1979
Filed:
Sep. 26, 1977
George B Soden, Wolcott, CT (US);
Hasit H Parikh, Southington, CT (US);
Richard J Kavanaugh, Bristol, CT (US);
North American Philips Corporation, New York, NY (US);
Abstract
An electric motor has a stator construction which includes identical facing cup shaped members having a circumferential surface which includes a plurality of tabs and recesses. The tabs of one cup shaped member are dimensioned and configured for an engagement with the recesses of the other cup shaped member to positively position axially and radially each cup shaped member relative to the other. In one form the tabs may have a negative taper such that the base extremity of the tab has a smaller width than the other extremity of the tab. The negative taper produces a more pronounced interference fit and causes the cups to snap together without the necessity for cementing, welding, or other metal joining process. Each cup in one form is also provided at a plurality of angularly spaced recesses for receiving two identical generally planar plates having cooperating tabs and upstanding pole pieces. The recesses in one form extend along the circumferential surfaces to the tabs.