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:
Sep. 13, 2011
Filed:
Jan. 25, 2006
Harunori Kitahara, Hirakata, JP;
Tsukasa Hojo, Hirakata, JP;
Harunori Kitahara, Hirakata, JP;
Tsukasa Hojo, Hirakata, JP;
Panasonic Electric Works Co. Ltd., Osaka, JP;
Abstract
A piezoelectric-driven diaphragm pump is comprised of a driving unit () having a driving diaphragm () and a first housing (), a replaceable driven unit () having a driven film () and a second housing (), and a fixing unit () for fixing the driven unit () to the driving unit (). A vibration transmitting face () of the driving diaphragm () from which displacement of the driving diaphragm () is transmitted to the driven film () and a vibration transmitted face () of the driven film () to which the displacement of the driving diaphragm is transmitted are not parallel to a reference plane () of the first housing () which faces the second housing (), and the vibration transmitting face () of the driving diaphragm () contacts with entire of the vibration transmitted face () of the driven film (). Thereby, the displacement of the driving diaphragm () is efficiently transmitted to the driven film (), so that a capacity of a pump room () can be varied largely.