Fluent material handling – with receiver or receiver coacting mea – With means to move supply means and/or receiver to – from or...
Patent
1976-02-10
1978-06-20
Bell, Houston S.
Fluent material handling, with receiver or receiver coacting mea
With means to move supply means and/or receiver to, from or...
141392, 264272, 310196, B65B 304
Patent
active
040956270
ABSTRACT:
According to the invention, electrically conductive paths are formed between the coil armor and the core laminations of dynamoelectric machines for inhibiting corona. This is achieved by injecting an uncured, semiconducting, elastomeric material between the coil sides and slot walls through the use of an injector tool inserted between them, and thereafter curing the material. The uncured material has a viscosity which enables it to be forced under pressure into these spaces, and when cured it has a resistance high enough not to form eddy current paths between laminations and yet low enough to conduct charge from the coil armor to the core. It is also capable of retaining its strength, elasticity, conductivity, etc., and remaining in place between the coils and core under vibrations, coolant flow, electric stresses, repeated temperature changes, etc., for the normal operating life of the machine.
REFERENCES:
patent: 2292599 (1942-08-01), Batie
Lonseth Palmer
Moorby Donald G.
Panter Hubert Gerald
Ahern John F.
Bell Houston S.
Canadian General Electric Company
Messenger Herbert E.
Mitchell James W.
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