1984-01-13
1985-01-01
Perkey, William B.
354453, 350269, G03B 906, G05D 2500
Patent
active
044914016
ABSTRACT:
In a diaphragm device, a progressive oscillation wave is generated at a vibrating member by electrically energizing electrostriction members while a movable member which is arranged to actuate diaphragm blades is pressed into contact with the vibrating member by means of an urging member. The movable member is then frictionally driven by the oscillation wave to drive the diaphragm.
REFERENCES:
patent: 3518930 (1970-07-01), Thieme et al.
Hiramatsu Akira
Inaba Hiroyoshi
Katsuma Makoto
Murakami Hiroyasu
Notagashira Hidefumi
Canon Kabushiki Kaisha
Perkey William B.
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