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:
Jan. 13, 2004
Filed:
Apr. 24, 2002
Michael F Bilotta, Fallbrook, CA (US);
Antonio Cruz-Uribe, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Printer ink cartridge and method of assembling same. The cartridge comprises a shell formed by a wall defining a cavity in the shell for storing ink. Disposed in the shell is a print head for ejecting ink drops through ink ejection orifices formed in the shell. The shell also defines an inlet port through the wall for allowing access to the cavity. An elastomeric seal or septum is matingly disposed in the port for sealing the port, the septum having a slit centrally therethrough for receiving an ink supply needle. A removable barrier is interposed between the cavity and the septum during manufacture of the cartridge. The barrier covers the port for isolating the ink in the cavity from the septum in order to avoid chemical interaction between the ink and the septum. During refilling of the cartridge, the ink supply needle is received through the slit and pushes the barrier from the port to allow refill ink to be supplied into the cavity.