Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2005-05-03
2005-05-03
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
06888288
ABSTRACT:
A vibration member for use in a vibration wave driving apparatus, and a vibration wave driving apparatus, the vibration member including an elastic member having a through hole, a fastening member having a threaded portion, an electro-mechanical energy transducer having a through hole, and a shaft inserted into the through holes of the elastic member and the electro-mechanical energy transducer, the shaft having a threaded screw portion that meshes with the threaded portion of the fastening member, and a step that restricts a position of the elastic member relative to the shaft in a thrust direction, wherein the elastic member is sandwiched between the step of the shaft and the fastening member and fixed therebetween by screwing and fastening the threaded screw portion of the shaft with the threaded portion of the fastening member, and the shaft is restricted from rotating relative to the elastic member.
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Kojima Nobuyuki
Nitto Kiyoshi
Seki Hiroyuki
Addison Karen
Canon Kabushiki Kaisha
Dougherty Thomas M.
Fitzpatrick ,Cella, Harper & Scinto
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