Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-03-21
2006-03-21
Le, Dang (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S049030, C310S257000
Reexamination Certificate
active
07015604
ABSTRACT:
A stepping motor includes: a rotary shaft; a rotor magnet mounted fixedly on the rotary shaft; a bearing member including a smaller-diameter portion and a larger-diameter portion, and supporting the rotary shaft; and a yoke including a plurality of magnetic pole teeth surrounding an outer circumferential surface of the rotor magnet, and a bottom plate having an opening into which the smaller-diameter portion of the bearing member is inserted. The smaller-diameter portion of the bearing member is fitted in the opening of the bottom plate and clamped radially outward.
REFERENCES:
patent: 3197659 (1965-07-01), Marshall
patent: 3633055 (1972-01-01), Maier
patent: 3894256 (1975-07-01), Sholtz
patent: 4185214 (1980-01-01), Gerber et al.
patent: 4363984 (1982-12-01), Torii et al.
patent: 4438361 (1984-03-01), Manson
patent: 4480206 (1984-10-01), Manson
patent: 4480881 (1984-11-01), Fujimori
patent: 4795926 (1989-01-01), Someya et al.
patent: 4857786 (1989-08-01), Nihei et al.
patent: 5091667 (1992-02-01), Tomite
patent: 5105113 (1992-04-01), Ishikura et al.
patent: 5117128 (1992-05-01), Albrecht et al.
patent: 5770900 (1998-06-01), Sato et al.
patent: 5945759 (1999-08-01), Tanaka et al.
patent: 6040649 (2000-03-01), Horng
patent: 6469412 (2002-10-01), Patarchi
patent: 6717306 (2004-04-01), Kudou et al.
patent: 2-218072 (1990-08-01), None
patent: 6-98520 (1994-04-01), None
patent: 10-84463 (1998-03-01), None
Iwase Masato
Takagi Masaaki
Le Dang
McGinn IP Law Group PLLC
Nidec Copal Corporation
LandOfFree
Stepping motor and method of manufacturing stepping motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stepping motor and method of manufacturing stepping motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stepping motor and method of manufacturing stepping motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3605099