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:
Feb. 18, 2014
Filed:
Jan. 20, 2009
Adel Jilani, Redmond, WA (US);
Tony S. Cruz-uribe, Corvallis, OR (US);
Martha A. Truninger, Corvallis, OR (US);
Kenneth Michael Kramer, Corvallis, OR (US);
Adel Jilani, Redmond, WA (US);
Tony S. Cruz-Uribe, Corvallis, OR (US);
Martha A. Truninger, Corvallis, OR (US);
Kenneth Michael Kramer, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
In one embodiment, a fluid ejector structure includes: a chamber for containing a fluid; a flexible membrane forming one wall of the chamber; a plurality of piezoelectric elements; a backing operatively connected to the piezoelectric elements such that an expansion and/or contraction of a piezoelectric element causes the piezoelectric element to bend; a rigid plate overlaying a center portion of the membrane; a post coupling the piezoelectric elements to the plate through the backing such that a movement of each piezoelectric element toward the chamber is transmitted to the plate through the post. The plate is configured to transmit movement of the post to the membrane in a rigid, or substantially rigid, piston-like manner.