Patents by Inventor John B. Campbell

John B. Campbell 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: 10472432
    Abstract: The present disclosure relates to methods of making an article comprising PTFE, methods of making expanded articles comprising PTFE, articles comprising PTFE, and expanded articles comprising PTFE having improved mechanical and electrical performance and particularly reduced variability in mechanical, electrical and dimensional properties, particularly over long lengths.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 12, 2019
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Jessica L. McCoy, Georges Moineau, Philip C. Guy, Mark E. Schiek, Joseph B. MacDonald, Frank M. Keese, Jennifer Adamchuk, Silvia Ruth Gorman, Scott P. Campbell, Paul J. Beaumont, John Marko
  • Publication number: 20190285204
    Abstract: A flexible air duct contains a uniformly-spaced reflective insulation system, with or without bulk insulation, a liner, and an outer jacket that would allow a reduced amount or no amount of bulk insulation to be used to obtain a desired R-value insulation. The flexible air duct can be used to move conditioned air to one or more desired locations.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 19, 2019
    Inventors: Ronald L. CARLAY II, John Cullen SCHLAGETER, Donald B. CAMPBELL
  • Patent number: 10352482
    Abstract: A flexible air duct contains a uniformly-spaced reflective insulation system, with or without bulk insulation, a liner, and an outer jacket that would allow a reduced amount or no amount of bulk insulation to be used to obtain a desired R-value insulation. The flexible air duct can be used to move conditioned air to one or more desired locations.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: July 16, 2019
    Assignee: FLEXIBLE TECHNOLOGIES, INC.
    Inventors: Ronald L. Carlay, II, John Cullen Schlageter, Donald B. Campbell
  • Patent number: 6813960
    Abstract: A column assembly for use in conjunction with a test machine, for inducing high-cycle fatigue (at kilohertz vibration rates) in a specimen of a material under test. The column assembly has isolation masses, a specimen grip, and two actuators, the latter for imparting dynamic forces to the test specimen. The actuators are arranged on the column assembly asymmetrically relative to the test specimen.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: November 9, 2004
    Assignee: Southwest Research Institute
    Inventors: Thomas E. Owen, David L. Davidson, John B. Campbell, Andrew Nagy
  • Patent number: 6601456
    Abstract: A fretting fixture accessory for a_test machine (10) that induces high-cycle fatigue (at kilohertz vibration rates) in a specimen of a material under test. The fretting fixture (20) is clamped to the test specimen (21), for the purpose of testing for fretting damage. The fixture (20) is designed to provide both the normal and shearing forces that result in fretting damage.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: August 5, 2003
    Assignee: Southwest Research Institute
    Inventors: David L. Davidson, Thomas E. Owen, John B. Campbell
  • Patent number: 3981937
    Abstract: Dichlorobutene is treated with aqueous inorganic alkali in the presence of a catalytic amount of a quaternary ammonium compound catalyst to dehydrochlorinate the dichlorobutene and directly form chloroprene.
    Type: Grant
    Filed: February 13, 1970
    Date of Patent: September 21, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John B. Campbell, Robert Edward Tarney
  • Patent number: D402997
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: December 22, 1998
    Assignee: Campbell Hausfeld/ Scott Fetzer Company
    Inventors: John B. Campbell, Kurt W. Kamka, Randy A. Smith