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:
Apr. 12, 2022
Filed:
Jan. 25, 2018
Hewlett-packard Development Company, L.p., Spring, TX (US);
William S Osborne, Corvallis, OR (US);
John J Cantrell, Vancouver, WA (US);
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
An example system includes an ink tank including a feeder tank, wherein the feeder tank is to hold a fluid therein, the feeder tank having a port, the feeder tank being under a negative gauge pressure. The example system further includes a print cartridge in fluid communication with the port of the feeder tank, the print cartridge having a nozzle plate. The port of the feeder tank is positioned to a lower corner of the feeder tank distally to the print cartridge, wherein the nozzle plate is disposed above a predetermined level within the feeder tank when the system is not tilted, the predetermined level corresponding to a free surface of a predetermined volume of the fluid when the system is not tilted. When the system is tilted to position the nozzle plate below the port, the volume of fluid uncovers the port.