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:
Aug. 29, 2006
Filed:
Sep. 12, 2003
Applicants:
Cary R. Bybee, Lebanon, OR (US);
Anthony D. Studer, Albany, OR (US);
David J. Benson, Albany, OR (US);
Kevin D. Almen, Albany, OR (US);
Bob Wickwire, Corvallis, OR (US);
Inventors:
Cary R. Bybee, Lebanon, OR (US);
Anthony D. Studer, Albany, OR (US);
David J. Benson, Albany, OR (US);
Kevin D. Almen, Albany, OR (US);
Bob Wickwire, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ink delivery apparatus includes a pressure tuned rolling piston having a distal end. The distal end includes a pressure responsive portion. A first convolute portion supports the pressure responsive portion, and the first convolute portion is configured to provide a first level of resistance against a negative pressure.