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. 16, 2018
Filed:
Oct. 30, 2014
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventors:
Alexander Govyadinov, Corvallis, OR (US);
Adam L Ghozeil, Corvallis, OR (US);
Boon Bing Ng, Singapore, SG;
Patrick Leonard, Leixlip, IE;
Raymond Connolly, Leixlip, IE;
Assignee:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B41J 2/18 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01); B41J 2/18 (2013.01);
Abstract
A print head has an ink slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A recirculation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the recirculation passage.