Patents by Inventor Julie A. Whitney

Julie A. Whitney 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 source regulator for an inkjet printer
    Patent number: 6837577
    Abstract: A regulator adapted to regulate the throughput of an ink between an ink source and a print head includes: (a) a pressurized chamber including an ink inlet in fluid communication with the ink source, an ink outlet in fluid communication with the print head, and at least one flexible wall; and (b) a lever including a flexible arm extending along a portion of the flexible wall and an opposing arm operatively coupled to a seal biased to close the ink inlet when the lever is in a first position and to open the ink inlet to allow fluid communication between the ink inlet and the pressurized chamber when the lever is pivoted to a second position; where a lower pressure differential across the flexible wall causes the flexible wall to actuate the flexible arm, pivoting the lever to the first position (inlet closed), where a higher pressure differential across the flexible wall causes the flexible wall to actuate the flexible arm to pivot the lever to the second position (inlet open), and where a pressure change from
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: January 4, 2005
    Assignee: Lexmark International, Inc.
    Inventors: James D. Anderson, James P. Drummond, John R. Fowler, Trevor D. Gray, David E. Greer, Timothy L. Howard, Steve R. Komplin, Matthew J. Russell, Julie A. Whitney, Jon B. Whitney
  • INK SOURCE REGULATOR FOR AN INKJET PRINTER
    Publication number: 20040257413
    Abstract: A regulator adapted to regulate the throughput of an ink between an ink source and a print head includes: (a) a pressurized chamber including an ink inlet in fluid communication with the ink source, an ink outlet in fluid communication with the print head, and at least one flexible wall; and (b) a lever including a flexible arm extending along a portion of the flexible wall and an opposing arm operatively coupled to a seal biased to close the ink inlet when the lever is in a first position and to open the ink inlet to allow fluid communication between the ink inlet and the pressurized chamber when the lever is pivoted to a second position; where a lower pressure differential across the flexible wall causes the flexible wall to actuate the flexible arm, pivoting the lever to the first position (inlet closed), where a higher pressure differential across the flexible wall causes the flexible wall to actuate the flexible arm to pivot the lever to the second position (inlet open), and where a pressure change from
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Inventors: James D. Anderson, James P. Drummond, John R. Fowler, Trevor D. Gray, David E. Greer, Timothy L. Howard, Steven R. Komplin, Matthew J. Russell, Julie A. Whitney, Jon B. Whitney