Electrical insulation particularly for use in winding slots of d

Details Electrical insulation particularly for use in winding slots of d Electrical insulation particularly for use in winding slots of d

1974-03-20

1976-08-10

McCamish, Marion E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

310 45, 310215, 428251, 428285, 428302, 428317, 428474, H01B 1760, H02K 336, B32B 502, B32B 514

Patent

active

039743144

ABSTRACT:
A laminated molded insulation material for insulation of electrical machines and particularly useful for conductor slot insulation of dynamo-electric machines is produced by covering both sides of a dielectrically strong, homogeneous electrically insulating polyheterocylene foil such as polyhydantoin with protective layers of tangled fibers such as an aromatic polyamide paper known under the trade name "Nomex". The composite consisting of the protective tangled fiber layers joined to the insulating foil is then enclosed on both sides by layers of a high-tensile strength, fiber-reinforced synthetic resin using, for example, a glass fleece or glass-silk fabric as the fiber material, and which are joined to the protective tangled fiber layers and in such manner that within the protective layers opposite the insulating foil there exists a continuous remainder of non-resin impregnated tangled-fiber structure consisting solely of tangled fibers.

REFERENCES:
patent: 563397 (1896-07-01), Jefferson
patent: 2202820 (1940-06-01), Baird et al.
patent: 2320866 (1943-06-01), Hill
patent: 2417746 (1947-03-01), Fletcher
patent: 2924264 (1960-02-01), Imhof
patent: 3427394 (1969-02-01), McKean
patent: 3450968 (1969-06-01), Cox
patent: 3735169 (1973-05-01), Balke et al.
Dupont, "Laminating, Fabricating, and Processing of Nomex High Temperature Resistant Nylon Paper," Bulletin N-204, Feb. 1967.

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