Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1991-03-28
1992-09-15
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
H01L 4108
Patent
active
051480751
ABSTRACT:
A vibration wave driven motor includes a vibration member for generating a vibration wave in response to an applied signal. A contact member includes a contact element which contacts the vibration member. The vibration wave creates relative movement between the vibration member and the contact member, and the surface of the contact member is made of a non-fiber type compound resin having a Rockwell hardness of 80-110 while the vibration member is made of a stainless steel of precipitation.
REFERENCES:
patent: 4736129 (1988-04-01), Endo et al.
patent: 5034646 (1991-07-01), Shirasaki
American National Standard, "Standard Test Method for Rockwell Hardness of Plastic and Electrical Insulating Materials", ANSI/ASTM D 785-65, pp. 315-320.
American National Standard, "Standard Test Method for Rubber Property-Durometer Hardness", ANSI/ASTM D 2240-75, pp. 705-708.
Budd Mark O.
Canon Kabushiki Kaisha
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