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:
Mar. 21, 2017
Filed:
Mar. 29, 2016
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventors:
Curt Gonzales, Corvallis, OR (US);
Ralph L. Stathem, Lebanon, OR (US);
David N. Olsen, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B41J 2/19 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17563 (2013.01); B41J 2/17509 (2013.01); B41J 2/17513 (2013.01); B41J 2/17556 (2013.01); B41J 2/17596 (2013.01); B41J 2/19 (2013.01); B41J 2/175 (2013.01);
Abstract
An example pen housing includes a first regulator to actuate in response to a first pressure change to enable gas within a first chamber to flow from the first chamber to a second chamber, the first chamber to flow ink to a printhead, the second chamber not to receive ink directly from an ink supply; and a second regulator to actuate in response to a second pressure change to enable the gas received from the first chamber to be discharged from the second chamber.