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:
Mar. 29, 1977
Filed:
Jun. 24, 1975
Paul S Johrde, Franklin Township, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
A coil retention system for large dynamoelectric machines with a locking slot wedge of two parts of which one part is T-shaped with the top of the T disposed in the space between adjacent packs of core laminations and the bottom of the T lying in the slot and tapered to a small thickness, the other part of the locking wedge being located in lateral grooves at the slot opening and having a tapered portion that fits over and retains in position the T-shaped part. The locking wedge is used at the ends of the coil slot while intermediate core packs may have conventional slot wedges driven in through lateral grooves. An insulating tape overlies the coil in the slot and wraps around the end of a slot filler and has an extremity locked in place between the locking wedge and the adjacent slot wedge of the next core pack. Cured resinous material bonds together the two parts of the locking wedge and an adhesive on the insulating tape bonds it to the slot filler.