Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1981-04-28
1983-01-18
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310215, H02K 348
Patent
active
043693890
ABSTRACT:
Device for securing winding bars in slots of electric machines, including at least one winding bar having sides and being disposed in each slot, a slot-closing wedge disposed in vicinity of the opening of the slot, at least one wavy slot-closing spring having a given first spring travel distance, and being disposed in the slot in longitudinal direction thereof, the slot-closing spring being formed of glass fabric embedded in a hardenable resin and being compressed by approximately 80% of the given first spring travel distance, and a wavy lateral slot spring having a given second spring travel distance and being disposed between a side of the at least one winding bar and an adjacent side wall of the slot in longitudinal direction of the slot, the lateral slot spring being formed of glass fabric embedded in a hardenable resin and being compressed by at least 85% of the given second spring travel distance.
REFERENCES:
patent: 2664214 (1953-12-01), Huntley
patent: 2922058 (1960-01-01), Bacon
patent: 3158770 (1964-11-01), Coggeshall et al.
patent: 3780325 (1973-12-01), Frankenhauser
patent: 3909931 (1975-10-01), Lambrecth
patent: 3949255 (1976-04-01), Brown et al.
Lerner Herbert L.
Skudy R.
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