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:
May. 28, 2013
Filed:
Apr. 30, 2008
Jon Rittgers, Co. Kildare, IE;
Fionnula Farrell, Co. Kildare, IE;
Edward Savage, Co. Kildare, IE;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of making a print cartridge comprises providing an ink housinghaving a top and a base and at least one interior compartment, the housing further having a passagewayin the base with an entrance in the compartment to allow fluid communication between the interior of the compartment and a print headmounted at the base of the housing. A block of hydrophobic foam materialis inserted under compression into the compartment immediately above the passageway entrance. Inkis injected into the foam block through two hollow needlesextending downwardly through the block from the top of the housing and terminating at points disposed respectively towards opposite edgesof the passageway entrance. The volume of ink injected by the needles is sufficient to fill the passageway and cover the passageway entrance but insufficient to form a horizontal air seal around the internal periphery of the compartment.