Electric actuator and motor used therein

Electrical generator or motor structure – Dynamoelectric – Rotary

Reexamination Certificate

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Details

C310S07500D, C310S090000, C310S154010

Reexamination Certificate

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11410753

ABSTRACT:
A motor comprises a rotor fixed to a shaft and a stator comprising a permanent magnet on the inner circumferential surface of a motor casing. The shaft extends from the opening end of the motor casing and has a worm wheel in a gear casing. The end face of the gear casing has an annular projection. The motor casing has an outward flange at the opening end. When the motor casing is connected with the gear casing, an elastic O-ring is fitted between a space formed by the outer circumferential surface of the annular projection, an outer vertical seat face of the gear casing and a corner of the outward flange thereby achieving suitable alignment of the motor casing with the gear casing. The permanent magnet is made of Nd magnet which is pressingly fitted on the inner circumferential surface of the motor casing.

REFERENCES:
patent: 5184039 (1993-02-01), Kraft
patent: 5895207 (1999-04-01), Burgdorf et al.
patent: 6459188 (2002-10-01), Lombardo et al.
patent: 2002/0175573 (2002-11-01), Hayashi
patent: 2004/0012280 (2004-01-01), Frey et al.
patent: 2004/0012296 (2004-01-01), Sakai et al.
patent: 2004/0070296 (2004-04-01), Ursel et al.
patent: 2004/0164629 (2004-08-01), Kawakami et al.
patent: 2004/0189117 (2004-09-01), Hama et al.
patent: 2004/0189120 (2004-09-01), Takashima et al.
patent: 27 29 398 (1979-11-01), None
patent: 2005-30545 (2005-02-01), None

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