GEZA GRUENWALD
Engineers in Erie, PA
License number
Pennsylvania PE029243E
Category
Engineers
Type
Professional Engineer
Address
Address
Erie, PA 16508
Professional information
Method Of Curing Vacuum Pressure Impregnated Coils
US Patent:
3937855, Feb 10, 1976
Filed:
Jun 21, 1974
Appl. No.:
5/481900
Inventors:
Geza Gruenwald - Erie PA
Assignee:
General Electric Company - Erie PA
International Classification:
B05D 306, H01F 506
US Classification:
427 54
Abstract:
After vacuum pressure impregnating an insulated coil with liquid polyester resin the outer surface of the combination is treated to cause a quick low temperature gellation of an outer shell of the resin to thereby encapsulate the remaining liquid portion. A subsequent high temperature cure is imposed for a relatively long period of time to solidify the liquid inner portion and to fully cure the resin throughout the insulation.
Commutator Cone
US Patent:
4385253, May 24, 1983
Filed:
Aug 21, 1981
Appl. No.:
6/295162
Inventors:
Geza Gruenwald - Erie PA
Assignee:
General Electric Company - Erie PA
International Classification:
H01R 3904, H02K 1304
US Classification:
310236
Abstract:
A non-micaceous commutator cone for insulating commutator bars from retaining rings of a commutator assembly in a dynamoelectric machine, comprising an annular laminated member including at least one layer of non-conductive, resin-impregnated fibrous elements sandwiched between outer layers of thin, seamless, impervious, non-thermoplastic polymeric films. The wall of this laminate has the dielectric strength, the uniform thickness, the stability, and the resiliency that are required for a commutator cone in a relatively large, high temperature machine.