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:
Oct. 16, 2012
Filed:
Mar. 13, 2009
Applicants:
Toshiharu Shimizu, Asago, JP;
Shigehisa Kinugawa, Asago, JP;
Shinichi Sugahara, Asago, JP;
Inventors:
Assignee:
Tacmina Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 43/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a diaphragm that can be securely and firmly fixed to a predetermined fixing position without deteriorating the function of a film part. The diaphragm is provided with a film part () that is elastically deformable by a predetermined pressure, a thick part () that is disposed at a rim portion of the film part () and has a thickness greater than the film part (), and a protection part () that is disposed between the film part () and the thick part () in contact with the film part () and is elastically deformable along with elastic deformation of the film part () to protect the film part ().