Insulated dynamo windings

Details Insulated dynamo windings Insulated dynamo windings

1988-10-26

1990-03-13

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310208, H02K 1510

Patent

active

049085352

ABSTRACT:
The commutating poles of vehicular-type dc motors, for example for trolley buses or trolley cars, are made by winding, on edge, a copper strip, permitting the wound copper strip to resiliently, spring-like expand so that the individual spiral loops thereof will be slightly spaced from each other, and then exposing the copper strip in a fluidized bed to an insulating powder, for example polyethylene or polyurethane, which is subsequently cured in a hardening or sintering process.

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patent: 3333131 (1967-07-01), Bush
patent: 3877142 (1975-04-01), Hamano
patent: 4471247 (1984-09-01), Cotton
patent: 4616407 (1986-10-01), Tamaki et al.
patent: 4617725 (1986-10-01), Holter et al.
patent: 4651039 (1987-03-01), Yamamoto
patent: 4682410 (1987-07-01), Kreuzer et al.
patent: 4782254 (1988-11-01), Kreuzer
patent: 4813126 (1989-03-01), Williamson

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