B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
26/113, 18/674
B29C 39/10 (2006.01) B29C 35/02 (2006.01) B29C 67/22 (1990.01)
Patent
CA 1290564
METHOD OF MANUFACTURING A POLYPHENYLENE SULFIDE POTTED POLE AND COIL ASSEMBLY Abstract of the Disclosure A method of making a pole and coil assembly for a dynamo-electric machine (e.g., interpole for locomotive traction motors) comprising providing the coil wires with a polyphenylene sulfide coating, filling the pole-coil interspace with solid, foamable polyphenylene sulfide ground insulation and heating the assembly such as to foam the ground insulation in place and cause it to constrictively engage and bond to the pole as well as fuse to the PPS coating on the coil. Roughening and/or coating the surface of the pole with PPS for improved pole retention is also disclosed.
464475
Cotton Dale L.
Nachman Frank J.
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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