Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate
2005-12-27
2005-12-27
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
C335S261000, C335S279000, C335S281000, C310S012060, C310S015000, C417S410100, C417S417000
Reexamination Certificate
active
06980072
ABSTRACT:
A linear actuator has inner yokes, outer yokes forming gaps between themselves and the inner yokes, and a movable body provided with planar magnets in the gaps. Eight pieces each of the inner yokes and the outer yokes are arranged at equal angular intervals in a circumferential direction with planar faces of each of the inner yokes and the of the outer yokes being opposed to each other. The movable body has magnet retaining portions having a substantially triangular shape and placed between adjacent inner yokes and between adjacent outer yokes. A linear actuator having high magnetism usability can be structured using magnetic parts suitable for mass production.
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Tanaka Shohzoh
Ueda Kazuhiko
Yumita Yukinobu
Barrera Ramon M.
Flynn ,Thiel, Boutell & Tanis, P.C.
Nidec Sankyo Corporation
Sharp Kabushiki Kaisha
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