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:
Apr. 05, 2011
Filed:
Sep. 30, 2009
Applicants:
Hisashi Kawamoto, Chiba, JP;
Osamu Takano, Chiba, JP;
Inventors:
Hisashi Kawamoto, Chiba, JP;
Osamu Takano, Chiba, JP;
Assignee:
Seiko Precision Inc., Narashino-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vane driving device includes: a board having an opening; a blade changing an area of the opening, having a cam slot, and being elastically deformable; and a drive member transmitting a drive force from a drive source to the blade, and having a drive pin engaging the cam slot. The drive member is stopped by contacting the drive pin with at least one of end portions of the cam slot, when the blade is located in a fully opened state or in a small aperture state.