Patents by Inventor Joe Forrest London, Jr.

Joe Forrest London, Jr. 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).

  • Spin annealed poly(trimethylene terephthalate) yarn
    Patent number: 7005093
    Abstract: A spinning process for poly(trimethylene terephthalate) and an analytical method wherein the process provides an aging resistant poly(trimethylene terephthalate) yarn and the analytical method provides predictability to the process.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: February 28, 2006
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Zhuomin Ding, Joe Forrest London, Jr.
  • Process of making partially oriented poly(trimethylene terephthalate) yarn
    Patent number: 6998079
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: February 14, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Processes for making poly(trimethylene terephthalate) yarn
    Patent number: 6685859
    Abstract: Processes for making poly(trimethyelene terephthalate) yarn are provided. The process includes extruding a polyester polymer through a spinneret to form non-round filaments at a spinning speed less than 4500 mpm and a temperature between about 255° C. and about 275° C. The polyester polymer composition includes at least 85 mole percent poly(trimethylene terephthalate) wherein at least 85 mole percent of the repeating units consist of trimethylene units, and the polyester polymer has an intrinsic viscosity of at least 0.70 dl/g.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: February 3, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr.
  • Processes of preparing partially oriented and draw textured poly(trimethylene terephthalate) yarns
    Patent number: 6672047
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: January 6, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Processes for making poly (trimethylene terephthalate) yarns
    Patent number: 6663806
    Abstract: Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw ratio is within 10 percent of the predicted draw ratio determined according to: [(elongation to break of the feed yarn)+115]/[(elongation to break of the drawn yarn)+115)].
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 16, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Fine denier yarn from poly (trimethylene terephthalate)
    Patent number: 6383632
    Abstract: Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw ratio is within 10 percent of the predicted draw ratio determined according to: [(elongation to break of the feed yarn)+115]/[(elongation to break of the drawn yarn)+115)] are disclosed.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 7, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Partially oriented poly(trimethylene terephthalate) yarn
    Patent number: 6287688
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: September 11, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James M. Howell, Joe Forrest London, Jr., Michelle H. Watkins
  • Making high filament count fine filament polyester yarns
    Patent number: 5827464
    Abstract: A direct melt spinning process for providing high filament count fine filament polyester yarns having excellent mechanical quality and along-end uniformity and unitary interlace by spinning all the filaments of such high filament count yarn from a single spinneret. Such yarns may be used as direct-use yarns and as draw-feed yarns for preparing drawn flat yarns and draw-textured yarns.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 27, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David George Bennie, Robert James Collins, Hans Rudolf Edward Frankfort, Stephen Buckner Johnson, Benjamin Hughes Knox, Joe Forrest London, Jr., Elmer Edwin Most, Jr., Girish Anant Pai
  • High filament count fine filament polyester yarns
    Patent number: 5741587
    Abstract: A direct melt spinning process for providing high filament count fine filament polyester yarns having excellent mechanical quality and along-end uniformity and unitary interlace by spinning all the filaments of such high filament count yarn from a single spinneret. Such yarns may be used as direct-use yarns and as draw-feed yarns for preparing drawn flat yarns and draw-textured yarns.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 21, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David George Bennie, Robert James Collins, Hans Rudolf Edward Frankfort, Stephen Buckner Johnson, Benjamin Hughes Knox, Joe Forrest London, Jr., Elmer Edwin Most, Jr., Girish Anant Pai
  • Polyester mixed yarns with fine filaments
    Patent number: 5691057
    Abstract: Polyester mixed fine filament yarns having excellent mechanical quality and uniformity, and preferably with a balance of good dyeability and shrinkage, are prepared by a simplified direct spin-orientation process by selection of polymer and spinning conditions.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 25, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David George Bennie, Robert James Collins, Hans Rudolf Edward Frankfort, Stephen Buckner Johnson, Benjamin Hughes Knox, Joe Forrest London, Jr., Elmer Edwin Most, Jr., Girish Anant Pai