Patents by Inventor Greg Heffner

Greg Heffner 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).

  • Publication number: 20140000935
    Abstract: A cable is provided containing one or o polymeric elements for reduction of crosstalk. The cable includes a plurality of unshielded twisted pairs, each of which is an insulated conductor pair twisted around one another, each having a different lay length. A jacket encloses the plurality of unshielded twisted pairs, where an unshielded twisted pair, has the longest lay length among the plurality of unshielded twisted pairs is positioned within the center of the jacket such that an axis of the twisted pairs that has the longest lay length substantially coincides with the central longitudinal axis of the cable. A plurality of bumper elements are disposed within the jacket in the interstices between said plurality of unshielded twisted pairs, where the bumper elements are profiled polymer structures.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Inventors: Greg Heffner, Joshua Keller, Qibo Jiang, Paul Kroushl, Frederic Jean, Kathy Perevosnik
  • Publication number: 20130126209
    Abstract: The present arrangement provides a twisted pair of conductors, each with a profiled insulation thereon, where in the twisted pair, the peak to peak contact of adjacent conductor insulation is ensured along the length of the pair. To this end, each of the profiled insulations on the conductors of the pair are forward twisted prior to twinning to ensure the maximum number of peak to peak contacts per unit length of the pair.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 23, 2013
    Inventor: Greg Heffner
  • Patent number: 7993568
    Abstract: A device for making a profiled insulation having an extrusion die with an extrusion tip and a polymer chamber surrounding the extrusion tip. The polymer chamber has at least one air chamber therein. The air chamber is held in place and coupled to the outside of the extrusion die by a vertical fin extending outwards from the extrusion tip. When molten polymer flows through the polymer chamber around the air chamber, an opening is introduced into the polymer such that the profiled insulation is formed as the polymer exits the extrusion die, having a longitudinal cavity therein corresponding to the location of the opening formed by the at least one air chamber.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: August 9, 2011
    Assignee: Nexans
    Inventor: Greg Heffner
  • Publication number: 20100276178
    Abstract: A wire, having a conductor and an insulation, extruded onto the conductor. The insulation has a plurality of alternating plateaus and valleys thrilling a profile along the outer circumference, where a circumference ratio of an outer circumference of the insulation at the full thickness of the plateaus relative to the portion of the outer circumference of the insulation that is at the reduced thickness of valleys is substantially 1.5 or greater.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventors: Joshua Keller, Greg Heffner
  • Patent number: 7560646
    Abstract: A wire has a conductor and an insulation extruded onto the conductor. The insulation has a plurality of alternating crests and crevasses, where the ratio of the distance from the conductor to a top of the crest to the distance from the conductor to a lowest point in the adjacent crevasse is at least 1.1 and where the ratio is sustained within a tolerance variation of not more than 15% along the length of the wire.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 14, 2009
    Assignee: Nexans
    Inventor: Greg Heffner
  • Publication number: 20090018225
    Abstract: A foaming composition includes a polymer having a melting temperature above 250° C., and an organic salt as chemical foaming agent having a decomposition temperature above the melting point of the polymer, where the organic salt is selected from the group of citrate derivatives and tartrate derivatives, or a mixture thereof.
    Type: Application
    Filed: December 11, 2007
    Publication date: January 15, 2009
    Inventors: Alfred Gemmel, Jerome Alric, Lawrence Letch, Greg Heffner, Gilberto Lunardi, Mikael Abeguile, Thierry Auvray
  • Publication number: 20080296042
    Abstract: A wire has a conductor and an insulation extruded onto the conductor. The insulation has a plurality of alternating crests and crevasses, where the ratio of the distance from the conductor to a top of the crest to the distance from the conductor to a lowest point in the adjacent crevasse is at least 1.1 and where the ratio is sustained within a tolerance variation of not more than 15% along the length of the wire.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Inventor: Greg Heffner
  • Publication number: 20070098940
    Abstract: A device for making a profiled insulation having an extrusion die with an extrusion tip and a polymer chamber surrounding the extrusion tip. The polymer chamber has at least one air chamber therein. The air chamber is held in place and coupled to the outside of the extrusion die by a vertical fin extending outwards from the extrusion tip. When molten polymer flows through the polymer chamber around the air chamber, an opening is introduced into the polymer such that the profiled insulation is formed as the polymer exits the extrusion die, having a longitudinal cavity therein corresponding to the location of the opening formed by the at least one air chamber.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 3, 2007
    Inventor: Greg Heffner