Patents by Inventor Barbara A. Cunningham

Barbara A. Cunningham 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).

  • Method for producing enhanced solid state
    Patent number: 7250484
    Abstract: A method for enhancing solid state polymerization of polyethylene terephthalate is disclosed in which at least one monomeric unit of diacid and/or dimethyl ester comprising at least one pendant chemical side group is copolymerized with a diol and a diacid or a dimethyl ester. The at least one pendant chemical side group may include groups chosen from tertiary butyl, hexyl, pentyl, butyl, propyl, ethyl, methyl, nitrosyl (NO2) and sulfonyl (SO2) groups.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: July 31, 2007
    Assignee: Invista North America S.AR.L.
    Inventors: Michael William Gardner, Jill Barbara Cunningham, Derek J. Winter, Stephen D. Jenkins
  • Eyeglass cleaning apparatus
    Patent number: 5335394
    Abstract: An apparatus wherein an oscillating motor and drive shaft arrangement selectively directs an eyeglass pair, and more specifically the lenses thereof, into a cleaning solution, having spherical resilient members therewithin to enhance cleaning. A timer mechanism after a predetermined timed event of cleaning maintains the lenses between front and rear walls of the entrance conduit into the fluid chamber, wherein heated drying air is directed onto the lenses of the eyeglass pair.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: August 9, 1994
    Inventors: James W. Cunningham, Jr., Barbara A. Cunningham
  • Dual travel cable control system
    Patent number: 4895041
    Abstract: A dual travel cable control system for use in an environment such as a throttle body wherein movement is provided through dual actuators such as a cruise control cable strand or a manually operated cable strand comprising an assembly of a first tube to which a strand end is connected for relative motion in tension and lost motion in the other and a second element adapted to close the tubular element after assembly of the strand to the first tubular element for attachment to the actuator of one of the devices.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: January 23, 1990
    Assignee: Babcock Industries Inc.
    Inventor: Barbara A. Cunningham