Method of resin impregnating electric machinery

Details Method of resin impregnating electric machinery Method of resin impregnating electric machinery

1991-02-26

1992-09-22

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

26427213, 2642722, 264313, 264337, B29C 4518, B29C 4546

Patent

active

051494833

ABSTRACT:
A method of impregnating electric machinery (32) containing windings with a resin (46) in accordance with the invention includes providing a vessel (30) for containing the electric machinery and an impreganting resin with the vessel having an interior volume (40) in contact with an exterior surface (42) of the electric machinery to be contacted with resin to impregnate the windings; heating the vessel containing the electric machinery to a temperature sufficient to reduce viscosity of the resin upon contact with the machinery to promote flow of resin into contact with the windings; contacting the heated vessel and electric machinery with the resin with the heated electric machinery reducing the viscosity of the resin with the reduced viscosity resin flowing into contact with the windings to be impregnated; curing the resin within the vessel to cause the resin to be retained in contact with the windings and removing the electric machinery from the vessel.

REFERENCES:
patent: 2489867 (1949-11-01), D'Orio
patent: 2632211 (1953-03-01), Trigg
patent: 3058156 (1962-10-01), O'Connor
patent: 3608023 (1971-09-01), Scarborough
patent: 3906622 (1975-09-01), Sakano et al.
patent: 4492884 (1985-01-01), Asano et al.
patent: 4681718 (1987-07-01), Oldham
patent: 4765942 (1988-08-01), Christensen et al.

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