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:
Jun. 06, 1989
Filed:
Feb. 17, 1988
Francis Froment, Lyons, FR;
Equipements Electriques Moteur, Creteil Cedex, FR;
Abstract
A double casing for an electric rotating machine stator includes two pipes placed coaxially one inside the other. The pipes have therethrough aligned openings for receiving screws for mounting polar supports to the inside of the casing. Each hole in the outer pipe is formed by performing a punching deformation operation of an initially cylindrical hole in the outer pipe. This forms a countersink dimensioned to accommodate the head of a respective screw. Such operation also forms a boss of the material of the outer pipe and causes such boss to extend inwardly from the countersink into the corresponding hole in the inner pipe.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile