Patents by Inventor Dilip Shrivastava

Dilip Shrivastava 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).

  • Patent number: 7331657
    Abstract: According to an embodiment of the present invention, a deflection electrode assembly is provided for use in a continuous ink jet printer of the type which projects a stream of ink drops toward a substrate and controls placement of the ink drops on the substrate by selectively charging the individual ink drops and passing the charged ink drops through a deflection field created by the deflection electrode assembly. The deflection electrode assembly includes a high voltage electrode, a low voltage electrode, and an insulating housing which positions the high and low voltage electrodes in a predetermined spaced relationship along the ink drop stream. The insulating housing also has an internal resistor in electrical connection to the high voltage electrode and an external circuit. The insulating housing also contains an insulating member which supports the high voltage electrode as well as minimizes the possibility for arcing between the two electrodes.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: February 19, 2008
    Assignee: Videojet Technologies, Inc.
    Inventors: Dilip Shrivastava, Mick Rybicki
  • Publication number: 20080012912
    Abstract: A system and method of aligning a charge tunnel of a continuous inkjet printer with a drop generator and a catcher, wherein the charge tunnel passes through an outer wall of a charge tunnel unit, including adjusting a linear position of the charge tunnel unit, and adjusting a rotary position of the charge tunnel unit. The adjusting steps are performed to ensure that the charge tunnel is aligned with the drop generator and the catcher.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 17, 2008
    Inventor: Dilip Shrivastava
  • Patent number: 7252373
    Abstract: A system and method of aligning a charge tunnel of a continuous inkjet printer with a drop generator and a catcher, wherein the charge tunnel passes through an outer wall of a charge tunnel unit, including adjusting a linear position of the charge tunnel unit, and adjusting a rotary position of the charge tunnel unit. The adjusting steps are performed to ensure that the charge tunnel is aligned with the drop generator and the catcher.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: August 7, 2007
    Assignee: Videojet Technologies, Inc.
    Inventor: Dilip Shrivastava
  • Publication number: 20050280677
    Abstract: According to an embodiment of the present invention, a deflection electrode assembly is provided for use in a continuous ink jet printer of the type which projects a stream of ink drops toward a substrate and controls placement of the ink drops on the substrate by selectively charging the individual ink drops and passing the charged ink drops through a deflection field created by the deflection electrode assembly. The deflection electrode assembly includes a high voltage electrode, a low voltage electrode, and an insulating housing which positions the high and low voltage electrodes in a predetermined spaced relationship along the ink drop stream. The insulating housing also has an internal resistor in electrical connection to the high voltage electrode and an external circuit. The insulating housing also contains an insulating member which supports the high voltage electrode as well as minimizes the possibility for arcing between the two electrodes.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 22, 2005
    Inventors: Dilip Shrivastava, Mick Rybicki
  • Publication number: 20050281083
    Abstract: A system and method of aligning a charge tunnel of a continuous inkjet printer with a drop generator and a catcher, wherein the charge tunnel passes through an outer wall of a charge tunnel unit, including adjusting a linear position of the charge tunnel unit, and adjusting a rotary position of the charge tunnel unit. The adjusting steps are performed to ensure that the charge tunnel is aligned with the drop generator and the catcher.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 22, 2005
    Inventor: Dilip Shrivastava