Paul W Greenlee

US Patent:

44321350, Feb 21, 1984

Filed:

Sep 24, 1982

Appl. No.:

6/423417

Inventors:

Paul W. Greenlee - Hendersonville TN

Assignee:

General Electric Company - Fort Wayne IN

International Classification:

H02K 1510

US Classification:

29598

Abstract:

A method of locking coiled conductors in slots of a dynamoelectric machine rotor by placing deformable locking members over selected axially limited areas of the coiled conductors and driving the ends of the locking members under tips of salient rotor poles to secure the locking members firmly in position against the outer surfaces of the conductors. In one form of the invention preformed sheets of insulating material are positioned around the coiled conductors and under the deformable locking members to insulate the coils from the sides of the rotor poles and from the locking members. An aspect of the invention includes the combination in a dynamoelectric machine rotor of a plurality of deformable locking members positioned to secure coiled conductors in rotor slots and to secure preformed sheets of insulating material between the outer surfaces of the conductors and the locking members when they are arranged in their coil-locking positions.

US Patent:

47924624, Dec 20, 1988

Filed:

Nov 26, 1985

Appl. No.:

6/801901

Inventors:

William R. Smith - Gallatin TN
Marvin W. Sheets - Los Gatos CA
Paul W. Greenlee - Hendersonville TN

Assignee:

General Electric Company - Fort Wayne IN

International Classification:

B05D 314
B05D 302
B05D 118

US Classification:

427 49

Abstract:

A method of applying solventless varnish to stator windings in electrical machinery. A magnetic core having a plurality of stator windings disposed in the slots of the core is positioned above a tank containing a solventless varnish, and the tank is then raised to immerse the end turns of the windings on one end of the core into the varnish. The windings are energized to heat them and the varnish which adheres to the end turns to reduce the viscosity of the varnish. The tank is then lowered and the stator and windings are inverted so that a portion of the reduced viscosity varnish which adheres to the end turns flows downwardly through the slots of the stator. This is repeated until varnish begins to flow freely through the slots to the other end, thereby indicating that good coating of the winding within the slots has been accomplished. Next, the current through the windings is increased to raise the temperature of the end turns of the windings to the gel point of the varnish, and the end turns on both ends of the stator are then alternately dipped into the varnish bath to build up a protective coating on the end turns. Once a sufficient thickness has been achieved, the current through the windings is increased further to raise the temperature of the windings to the point where the adhered varnish cures.

US Patent:

44332629, Feb 21, 1984

Filed:

Nov 30, 1978

Appl. No.:

5/965034

Inventors:

Paul W. Greenlee - Hendersonville TN

Assignee:

General Electric Company - Fort Wayne IN

International Classification:

H02K 348

US Classification:

310214

Abstract:

A method of locking coiled conductors in slots of a dynamoelectric machine rotor by placing deformable locking members over selected axially limited areas of the coiled conductors and driving the ends of the locking members under tips of salient rotor poles to secure the locking members firmly in position against the outer surfaces of the conductors. In one form of the invention preformed sheets of insulating material are positioned around the coiled conductors and under the deformable locking members to insulate the coils from the sides of the rotor poles and from the locking members. An aspect of the invention includes the combination in a dynamoelectric machine rotor of a plurality of deformable locking members positioned to secure coiled conductors in rotor slots and to secure preformed sheets of insulating material between the outer surfaces of the conductors and the locking members when they are arranged in their coil-locking positions.