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. 03, 1976
Filed:
Jul. 23, 1974
Roy Price Bowcott, Solihull, EN;
The Lucas Electrical Company Limited, Birmingham, EN;
Abstract
A method of manufacturing stator assemblies for dynamo electric machines in which the stator assemblies are of the kind including a hollow cylindrical yoke carrying a pole member on its inner surface comprising starting with a pole member having upstanding therefrom an integral spigot, and a yoke member, the wall of which includes a through bore of larger diameter than the spigot, performing a deforming operation on the yoke at the outer end of the bore to enlarge the diameter of the outer end of the bore and at the same time reduce the diameter of the bore intermediate its ends. The intermediate diameter of the bore is reduced to that of the spigot, and the spigot is then inserted through the bore from the inner end thereof so that the pole member lies against the inner surface of the yoke. The free end of the spigot is then deformed to produce a rivet head occupying the outer, enlarged region of the bore, and thus secure the pole member to the yoke.