Patents by Inventor Jill Cummings

Jill Cummings 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).

  • Fluid aeration test apparatus and method
    Publication number: 20050172698
    Abstract: A test apparatus for measuring the air entrainment characteristics of a fluid includes a reservoir for containing the fluid, an aerator apparatus to cause air entrainment of the fluid, and a density meter to measure the effects of air entrainment on fluid density. The test apparatus enables in-situ measurement of the transient air entrainment behavior of the fluid. A corresponding method is provided.
    Type: Application
    Filed: February 11, 2004
    Publication date: August 11, 2005
    Inventors: Jill Cummings, Christopher Morgan, Roy Fewkes, James Linden, Diana Foghel
  • Method of low PMD optical fiber manufacture
    Publication number: 20020178761
    Abstract: A method of fabricating an optical waveguide fiber from a preform having a centerline hole which includes pressurizing and expanding the centerline hole to improve uniformity, circularity, and/or symmetry of hole closure in order to achieve low levels of polarization mode dispersion in the fiber.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 5, 2002
    Inventors: Jill A. Cummings, Douglas G. Neilson