Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2005-09-26
2008-08-19
Epps, Georgia Y. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C356S616000, C356S617000, C341S013000, C341S031000, C033S00100V
Reexamination Certificate
active
07414238
ABSTRACT:
An optical encoder device for a small-sized motor has a code wheel attached to a motor shaft which extends to the exterior of the motor through a bearing accommodated in a bearing-retaining section provided on an end bell of the motor, and a board on which a photosensor module is mounted such that an optical modulation track portion of the code wheel is positioned and disposed in a gap of the photosensor module. While a spacer is sandwiched between the end bell and the board, the motor, the spacer, and the board are fixed together by soldering a pair of motor terminals to a printed wiring portion of the board. The spacer has a generally U-shaped structure so as to allow fitting in position thereof from a direction orthogonal to the motor shaft.
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Igarashi Kouhei
Kamiyoshihara Toshihiro
Epps Georgia Y.
Legasse Jr. Francis M
Mabuchi Motor Co. Ltd.
McGlew & Tuttle P.C.
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