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:
Sep. 28, 2010
Filed:
Dec. 04, 2006
David A. Tyvoll, San Diego, CA (US);
Winthrop D. Childers, San Diego, CA (US);
David M. Hagen, Corvallis, OR (US);
Douglas Hoffman, San Diego, CA (US);
David A. Tyvoll, San Diego, CA (US);
Winthrop D. Childers, San Diego, CA (US);
David M. Hagen, Corvallis, OR (US);
Douglas Hoffman, San Diego, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
In one embodiment, a method for refilling a used ink cartridge includes determining a quantity of ink remaining in an ink holding chamber in the cartridge, determining a desired quantity of ink to refill the chamber based on a difference between a capacity of the chamber and the quantity of ink remaining in the chamber, and refilling the chamber with the desired quantity of ink. In another embodiment, a method for refilling a used ink cartridge includes introducing ink into an ink holding chamber in the cartridge, simultaneously with introducing ink into the chamber, monitoring the level of ink in the chamber, and ending the introduction of ink into the chamber when the level of ink in the chamber reaches a desired level.