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. 29, 2013
Filed:
Jun. 02, 2010
James M. Casella, Webster, NY (US);
Andrew W. Hays, Fairport, NY (US);
Peter M. Gulvin, Webster, NY (US);
Jun MA, Penfield, NY (US);
James M. Casella, Webster, NY (US);
Andrew W. Hays, Fairport, NY (US);
Peter M. Gulvin, Webster, NY (US);
Jun Ma, Penfield, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
An ink jet print head includes an ink chamber defined by an electrostatically actuated membrane and a nozzle plate opposing the membrane. The nozzle plate includes a nozzle hole and a group of priming holes, the priming holes configured to maintain a substantially ink free surface on the nozzle plate during a freeze thaw cycle of ink in the ink chamber. A method for accommodating expansion and contraction of ink during a freeze thaw cycle of ink in an ink chamber is also provided. The method includes providing a group of priming holes in a nozzle plate of the ink chamber, the group of priming holes maintaining a substantially ink free surface on the nozzle plate during the freeze thaw cycle.