The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1985
Filed:
Jan. 13, 1984
Applicant:
Inventors:
Hiroyoshi Inaba, Kanagawa, JP;
Akiyasu Sumi, Kanagawa, JP;
Hidefumi Notagashira, Kanagawa, JP;
Makoto Katsuma, Kanagawa, JP;
Hiroyasu Murakami, Tokyo, JP;
Akira Hiramatsu, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G05D / ;
U.S. Cl.
CPC ...
3542711 ; 354453 ; 350269 ;
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.