Patents by Inventor Stephen Locke

Stephen Locke 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).

  • Gamut description and visualization
    Publication number: 20040100643
    Abstract: This invention pertains to a computer-implemented method and program for the comparison of color gamuts.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventors: David Edward Jones, John Stephen Locke
  • Ink jet printing
    Publication number: 20030128246
    Abstract: This invention pertains to ink jet printing and more particularly to ink jet printing of wide format substrates such as textiles, and to inks and inks sets suitable for use in such printing.
    Type: Application
    Filed: October 4, 2002
    Publication date: July 10, 2003
    Inventors: Martin E. Redding, John Stephen Locke, Robert Clifton Strum, Tony Z. Liang, Michael Lee Rudolph, Waifong Liew Anton, Hisanori Omura
  • Sonic measurement of web tension
    Patent number: 4335603
    Abstract: Tension in a moving web is measured by subjecting the web to an ultrasonic pulse train and measuring the time interval for the resultant transverse waves in the web to proceed a known distance past a point upstream (or downstream). The composite web plus wave velocity is calculated and the web travel time is added (or subtracted) to obtain wave velocity which is related to tension in accordance with the equation T=a.sup.2 w/g.sub.c, where T=web tension, a=wave velocity, w=mass per unit area and g.sub.c =lb mass ft/lb force sec.sup.2 conversion factor.
    Type: Grant
    Filed: August 13, 1980
    Date of Patent: June 22, 1982
    Assignee: Beloit Corporation
    Inventor: Stephen A. Locke