Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2008-04-01
2008-04-01
Schuberg, Darren E. (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S080000
Reexamination Certificate
active
11455481
ABSTRACT:
A driving apparatus includes a stepping motor having a lead screw, a rack, and a rack-retaining bar, a barrel, a barrel-retaining bar, and a connecting spring for connecting the rack to the barrel. The connecting spring includes an engaging portion that engages with a spherical output member of the rack. The stepping motor in which the lead screw and the rack are integrated with each other and the barrel are connected to each other with provides a structure that absorbs relative positioning error and backlash.
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Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
Mok Alex W
Schuberg Darren E.
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