Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-12-26
2006-12-26
Waks, Joseph (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
Reexamination Certificate
active
07154200
ABSTRACT:
A motor has a stator substantially encapsulated within a body of thermoplastic material; and one or more solid parts used in the motor either within or near the body. The thermoplastic material has a coefficient of linear thermal expansion such that the thermoplastic material contracts and expands at approximately the same rate as the one or more solid parts. In another aspect, a motor for a hard disc drive comprises at least one conductor, at least one magnet, at least one bearing and a shaft; and a monolithic body of thermoplastic material substantially encapsulating the at least one conductor. The bearing is either encapsulated in the thermoplastic material, housed in a hollow cylindrical insert encapsulated in the thermoplastic material, or secured in a bore formed in the body of thermoplastic material. The motor has improved shock resistance.
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Brinks Hofer Gilson & Lione
Encap Technologies Inc.
Shurtz Steven P.
Waks Joseph
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