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. 29, 2008
Filed:
Dec. 30, 2004
James Vogeley, Yorktown, VA (US);
James Vogeley, Yorktown, VA (US);
Adaptivenergy, LLC., Hampton, VA (US);
Abstract
A pump comprises a diaphragm assembly which includes a first diaphragm () having a first diaphragm edge () and a second diaphragm () having a second diaphragm edge (). The first diaphragm edge () and the second diaphragm edge () are bonded together so that a bellows chamber () is formed between the first diaphragm () and the second diaphragm (). At least one and possibly both of the first diaphragm () and the second diaphragm () is a piezoelectric diaphragm which displaces in accordance with application of an electrical signal. A driver applies the electrical signal to whichever of the first diaphragm () and the second diaphragm () is the piezoelectric diaphragm. The first diaphragm and the second diaphragm bow outwardly together and shrink in diameter during a suction stroke but flatten out and increase in diameter during a pump stroke.