Jeffrey N Mccoy

US Patent:

51246074, Jun 23, 1992

Filed:

May 19, 1989

Appl. No.:

7/354061

Inventors:

John C. Rieber - Louisville KY
Jeffrey S. McCoy - Jeffersontown KY

Assignee:

General Electric Company - Fort Wayne IN

International Classification:

H02K 3493
H02K 104
H02K 1500

US Classification:

310214

Abstract:

A high permeability slot wedge for a dynamoelectric machine with the wedge configured as an elongated bar of uniform cross-sectional configuration formed of a ferromagnetic material having modestly good electrically insulative properties comprising approximately by weight 60% to 80% relatively small ferromagnetic particles such as powdered iron, about 10% reinforcing glass fabric; and 15% to 20% unsaturated thermosetting plastic resin binder such as a polyester resin is disclosed. The ferromagnetic material is homogeneously distributed throughout the thermosetting plastic binder so that the permeability and resistivity of the resulting wedge is substantially uniform throughout.

US Patent:

52148394, Jun 1, 1993

Filed:

Sep 15, 1992

Appl. No.:

7/945007

Inventors:

John C. Rieber - Louisville KY
Jeffrey S. McCoy - Jeffersontown KY

Assignee:

General Electric Company - Fort Wayne IN

International Classification:

H02K 1510

US Classification:

29596

Abstract:

A high permeability slot wedge for a dynamoelectric machine with the wedge configured as an elongated bar of uniform cross-sectional configuration formed of a ferromagnetic material having modestly good electrically insulative properties comprising approximately by weight 60% to 80% relatively small ferromagnetic particles such as powdered iron, about 10% reinforcing glass fabric; and 15% to 20% unsaturated thermosetting plastic resin binder such as a polyester resin is disclosed. The ferromagnetic material is homogeneously distributed throughout the thermosetting plastic binder so that the permeability and resistivity of the resulting wedge is substantially uniform throughout.