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, 2005
Filed:
Dec. 18, 2002
Michael J. Debar, Rochester, NY (US);
Edward P. Furlani, Lancaster, NY (US);
Constantine N. Anagnostopoulos, Mendon, NY (US);
Christopher N. Delametter, Rochester, NY (US);
Michael J. DeBar, Rochester, NY (US);
Edward P. Furlani, Lancaster, NY (US);
Constantine N. Anagnostopoulos, Mendon, NY (US);
Christopher N. Delametter, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A drop emission device includes a chamber having a nozzle orifice through which a drop of liquid can be emitted. A deformable electrode is associated with the chamber such that movement of the electrode in a first direction increases the chamber's volume and movement of the electrode in a second direction decreases the chamber's volume to emit a drop through the nozzle orifice. A fixed electrode opposes to the deformable electrode to define a second chamber there between such that control of relative voltage differences between the deformable and the fixed electrodes selectively moves the deformable electrode in the first or second directions. The variable volume is vented to a source of dielectric material through an opening in the fixed electrode. The ratio of the cross-sectional area of the opening to the perimeter of the opening is greater than 0.5 μm, and is preferably about 5 μm.