Patents by Inventor John R. Carnes

John R. Carnes 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).

  • Method of cleaning for an inkjet printer
    Patent number: 6673160
    Abstract: In order that sensitive structures of inkjet printing mechanisms be cleaned without damaging these structures, a cleaning sheet and a process of using the sheet has been created. Debris and dried ink is removed from print cartridges and their carriage using a cleaning sheet having two strips of material spaced with a napped surface disposed longitudinally between the side edges and spaced apart from each other. By controlling the distance the strips are spaced from the sheet feed edge of the cleaning sheet, the print cartridges can be placed adjacent the strips for scrubbing against the strips without resulting in a media jam in the printer due to the increased thickness of the cleaning sheet.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: January 6, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ralph L Stathem, John R. Carnes, Kevin Almen, Babak Honaryar, Kris M. English
  • Cleaner kit for an inkjet printer
    Publication number: 20010005538
    Abstract: In order that sensitive structures of inkjet printing mechanisms be cleaned without damaging these structures, a cleaning sheet and a process of using the sheet has been created. Debris and dried ink is removed from print cartridges and their carriage using a cleaning sheet having two strips of material spaced with a napped surface disposed longitudinally between the side edges and spaced apart from each other. By controlling the distance the strips are spaced from the sheet feed edge of the cleaning sheet, the print cartridges can be placed adjacent the strips for scrubbing against the strips without resulting in a media jam in the printer due to the increased thickness of the cleaning sheet.
    Type: Application
    Filed: February 5, 2001
    Publication date: June 28, 2001
    Inventors: Ralph L. Stathem, John R. Carnes, Kevin Almen, Babak Honaryar, Kris M. English