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:
Dec. 03, 2002
Filed:
Mar. 14, 2000
John R. Debesis, Penfield, NY (US);
Yung-Rai R. Lee, Pittsford, NY (US);
Edwin A. Mycek, Scottsville, NY (US);
Larry L. Lapa, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An improved diaphragm ( ) for drop on demand ink jet print heads and method for manufacturing the same. The present diaphragm ( ) includes a support element ( ) defining at least a portion of a chamber ( ) for holding ink, the support element ( ) defining an opening ( ) adjacent to the chamber ( ), and the diaphragm ( ) being electroformed on a surface ( ) of the support element ( ) around the opening ( ) at least substantially covering the opening ( ) and enclosing the chamber ( ). The diaphragm ( ) preferably has a central region ( ) disposed generally centrally over the opening ( ) and a bellows ( ) surrounds the central region ( ). The central region ( ) of the electroformed diaphragm ( ) is disposed in contact with a piezoelectric transducer ( ) for effecting reciprocal movement of the diaphragm ( ) for alternately contracting and expanding the volume of the ink holding chamber ( ), producing uniform pressure or acoustic waves through ink contained in the chamber ( ) whereby ink menisci in nozzles of a print head in communication with the chamber ( ) are uniformly oscillated.