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. 02, 1996
Filed:
Aug. 16, 1993
Ismael R Sanchez, Rochester, NY (US);
Alexander A Antonelli, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An ink filling apparatus for filling ink cartridges with a quantity of ink. The ink filling apparatus includes ink injecting members or needles to inject ink into an ink saturating material or wicking medium contained in the ink cartridges. A compression member compresses the ink saturating medium while ink is injected into the saturating medium. A vent cover covers a vent tube in the ink cartridge and directs the flow of pressurized air or gas through the vent tube to prevent ink from entering the vent tube during the ink filling operation. A piston pump delivers a specific quantity of ink to the ink filling apparatus to accurately fill each ink cartridge.