Linear motor and linear guiding apparatus

Details Linear motor and linear guiding apparatus Linear motor and linear guiding apparatus

2005-12-20

2005-12-20

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S013000, C310S027000

Reexamination Certificate

active

06977450

ABSTRACT:
A linear motor is provided that includes a rod-like member having a cylindrical body made of a non-magnetic material and a plurality of plate-like segment magnets accommodated in the cylindrical body such that they are stacked in a longitudinal axial direction of the cylindrical body and a coil member having a polyphase coil. The rod-like member is arranged to extend through a center bore of the coil member. The rod-like member of the linear motor comprises the cylindrical body having a substantially oval or substantially rectangular section and the plurality of segment magnets having a substantially oval or substantially rectangular plate shape that are accommodated in the cylindrical body and stacked in the axial direction of the cylindrical body. The section of the center bore of the coil member is substantially oval or substantially rectangular corresponding to the shape of the section of the rod-like member.

REFERENCES:
patent: 3659124 (1972-04-01), Lathrop
patent: 6236124 (2001-05-01), Sekiyama et al.
patent: 6570273 (2003-05-01), Hazelton
patent: 6833638 (2004-12-01), Kang et al.
patent: 08275495 (1995-03-01), None
patent: 11-150973 (1999-06-01), None

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