Patents by Inventor Robert Ronald

Robert Ronald 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).

  • CONTROLLING DIFFUSED-AIR BUBBLES IN INK-JET PRINT CARTRIDGES
    Publication number: 20030030709
    Abstract: A spacer is incorporated into the standpipe of a foam-ink-containment type of inkjet print cartridge for retarding the growth of a diffused-air bubble in the standpipe, thereby extending the shelf life of the cartridge by ensuring the bubble will not become so large during storage of the cartridge that the bubble occludes flow of ink to the printhead.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 13, 2003
    Inventors: Govind Sanjeevanrao Deshmukh, Carey Yliniemi, Robert Ronald
  • Controlling diffused-air bubbles in ink-jet print cartridges
    Patent number: 6513920
    Abstract: A spacer is incorporated into the standpipe of a foam-ink-containment type of inkjet print cartridge for retarding the growth of a diffused-air bubble in the standpipe, thereby extending the shelf life of the cartridge by ensuring the bubble will not become so large during storage of the cartridge that the bubble occludes flow of ink to the printhead.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: February 4, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Govind Sanjeevanrao Deshmukh, Carey Yliniemi, Robert Ronald