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:
Dec. 01, 1987
Filed:
Dec. 12, 1986
Stephen R Reid, Winter Springs, FL (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
In a dynamoelectric machine rotor whose armature has circumferentially spaced teeth defining therebetween coil slots in which coils are disposed and which are closed by coil wedges provided with shoulders which engage armature tooth projections formed at the radially outer ends of the armature teeth to retain the slot wedges and the coils in the coil slots, the shoulders of the coil slots have self-lubricating material structures disposed thereon by which they are in engagement with armature tooth projections for the transmission of centrifugal forces generated by the coils and slot wedges to the armature teeth through the self-lubricating material structure thereby greatly reducing armature tooth peak stresses.