Patents by Inventor Stephen Lee Spruell

Stephen Lee Spruell 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: 8267140
    Abstract: An extrusion head may be provided. The extrusion head may include an inner flow path, an outer flow path, and at least one sealant flow path. The inner flow path may be configured to direct a flow of an inner layer around a conductor. The outer flow path may be configured to direct a flow of an outer layer around the inner layer. The at least one sealant flow path may extend to a connecting point with the inner flow path and the outer flow path. The at least one sealant flow path may be configured to direct a sealant to fill at least one sealant channel region between the inner layer and the outer layer. The connection point may be configured to cause the flow of the inner layer and the flow of the outer layer to join before the sealant fills the at least one sealant channel region.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 18, 2012
    Assignee: Southwire Company
    Inventor: Stephen Lee Spruell
  • Publication number: 20120152429
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation. A self-sealing elastomeric material is applied to the conductor surface or is present between the fins and between the inner protective layer and the outer insulation layer.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 21, 2012
    Inventors: Stephen Lee Spruell, Philip Anthony Sasse, Kimberly M. Nuckles, David Reece
  • Patent number: 8101862
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation. A self-sealing elastomeric material is applied to the conductor surface or is present between the fins and between the inner protective layer and the outer insulation layer.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: January 24, 2012
    Assignee: Southwire Company
    Inventors: Stephen Lee Spruell, Philip Anthony Sasse, Kimberly M. Nuckles, David Reece
  • Publication number: 20100086630
    Abstract: An extrusion head may be provided. The extrusion head may include an inner flow path, an outer flow path, and at least one sealant flow path. The inner flow path may be configured to direct a flow of an inner layer around a conductor. The outer flow path may be configured to direct a flow of an outer layer around the inner layer. The at least one sealant flow path may extend to a connecting point with the inner flow path and the outer flow path. The at least one sealant flow path may be configured to direct a sealant to fill at least one sealant channel region between the inner layer and the outer layer. The connection point may be configured to cause the flow of the inner layer and the flow of the outer layer to join before the sealant fills the at least one sealant channel region.
    Type: Application
    Filed: December 8, 2009
    Publication date: April 8, 2010
    Applicant: Southwire Company
    Inventor: Stephen Lee Spruell
  • Patent number: 7637298
    Abstract: An extrusion head may be provided. The extrusion head may include an inner flow path, an outer flow path, and at least one sealant flow path. The inner flow path may be configured to direct a flow of an inner layer around a conductor. The outer flow path may be configured to direct a flow of an outer layer around the inner layer. The at least one sealant flow path may extend to a connecting point with the inner flow path and the outer flow path. The at least one sealant flow path may be configured to direct a sealant to fill at least one sealant channel region between the inner layer and the outer layer. The connection point may be configured to cause the flow of the inner layer and the flow of the outer layer to join before the sealant fills the at least one sealant channel region.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: December 29, 2009
    Assignee: Southwire Company
    Inventor: Stephen Lee Spruell
  • Publication number: 20080286399
    Abstract: An extrusion head may be provided. The extrusion head may include an inner flow path, an outer flow path, and at least one sealant flow path. The inner flow path may be configured to direct a flow of an inner layer around a conductor. The outer flow path may be configured to direct a flow of an outer layer around the inner layer. The at least one sealant flow path may extend to a connecting point with the inner flow path and the outer flow path. The at least one sealant flow path may be configured to direct a sealant to fill at least one sealant channel region between the inner layer and the outer layer. The connection point may be configured to cause the flow of the inner layer and the flow of the outer layer to join before the sealant fills the at least one sealant channel region.
    Type: Application
    Filed: February 22, 2008
    Publication date: November 20, 2008
    Applicant: Southwire Company
    Inventor: Stephen Lee Spruell
  • Patent number: 7367373
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer and the self-sealing material can be formed sequentially or simultaneously in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: May 6, 2008
    Assignee: Southwire Company
    Inventor: Stephen Lee Spruell
  • Patent number: 6914193
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: July 5, 2005
    Assignee: Southwire Company
    Inventors: John Nicholas Ware, Stephen Lee Spruell
  • Publication number: 20030168245
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation.
    Type: Application
    Filed: February 11, 2003
    Publication date: September 11, 2003
    Inventors: Stephen Lee Spruell, Scott Mitchell Robertson, John Nicholas Ware, David Reece
  • Patent number: 6573456
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of conductors have an inner protective layer extruded thereabout, a ribbed or finned surface exterior thereto which includes a plurality of longitudinally extending ribs or fins between which exist a plurality of channel regions, an outer insulation layer thereabout, and a material within the channel regions which provides self-sealing properties to the cable, all applied to the conductor as a combined multilayer, the inner layer and outer layer merging to form the fins therebetween.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: June 3, 2003
    Assignee: Southwire Company
    Inventors: Stephen Lee Spruell, Scott Mitchell Robertson, John Nicholas Ware, Jr.
  • Publication number: 20030062188
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation.
    Type: Application
    Filed: September 4, 2002
    Publication date: April 3, 2003
    Inventors: John Nicholas Ware, Stephen Lee Spruell
  • Publication number: 20020108773
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout, the inner protective layer having an exterior ribbed or finned surface which includes a plurality of longitudinally extending ribs or fins between which exist a plurality of voids. An outer insulation layer can be formed in the same operation as the finned or ribbed inner layer or in a subsequent operation.
    Type: Application
    Filed: December 6, 2000
    Publication date: August 15, 2002
    Inventors: John Nicholas Ware, Stephen Lee Spruell
  • Publication number: 20020100604
    Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of conductors have an inner protective layer extruded thereabout, a ribbed or finned surface exterior thereto which includes a plurality of longitudinally extending ribs or fins between which exist a plurality of channel regions, an outer insulation layer thereabout, and a material within the channel regions which provides self-sealing properties to the cable, all applied to the conductor as a combined multilayer, the inner layer and outer layer merging to form the fins therebetween.
    Type: Application
    Filed: May 8, 2001
    Publication date: August 1, 2002
    Inventors: Stephen Lee Spruell, Scott Mitchell Robertson, John Nicholas Ware