Patents by Inventor Mary E. Haviland

Mary E. Haviland has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ink supply system for an ink jet printer having large volume ink containers
    Patent number: 6007190
    Abstract: An ink jet printer having an inking system that includes an ink jet cartridge, a large ink reservoir mounted on the ink jet printer at a location which is remote from the ink jet cartridge and tubing connecting the ink reservoir to the ink jet cartridge. The tubing and the ink reservoir are permanently mounted within the ink jet printer. Only the ink jet cartridge needs to be replaced, because the jet plate has a finite life span during which the print quality from the jet plate is satisfactory. The ink jet cartridge includes a quick release fitting which enables the easy disconnection of an old ink jet cartridge and reconnection of a new ink jet cartridge with the tubing. Further, the size of the ink jet cartridge is reduced since almost all of the ink storage is moved to a location which is remote from the ink jet cartridge.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: December 28, 1999
    Assignee: Encad, Inc.
    Inventors: Richard A. Murray, William M. Fries, Mary E. Haviland