Patents by Inventor David S. Lashmore

David S. Lashmore 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: 9236669
    Abstract: A conductive adapter for carrying relatively high current from a source to an external circuit without degradation is provided. The adapter includes a conducting member made from a conductive nanostructure-based material and having opposing ends. The adapter can also include a connector portion positioned on one end of the conducting member for maximizing a number of conductive nanostructures within the conducting member in contact with connector portion, so as to enable efficient conduction between a nanoscale environment and a traditional electrical and/or thermal circuit system. The adapter can further include a coupling mechanism situated between the conducting member and the connector portion, to provide a substantially uniform contact between the conductive nanostructure-based material in the conducting member and the connector portion. A method for making such a conductive adapter is also provided.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: January 12, 2016
    Assignee: Nanocomp Technologies, Inc.
    Inventors: Jennifer Mann, David S. Lashmore, Brian White
  • Patent number: 9198232
    Abstract: A heating device having a thermally conducting member made from a matrix of carbon nanotubes and having opposing ends. A connector portion can be positioned at each end of the conducting member, and can be capable of receiving a current from an external source to permit the conducting member to generate heat. A coupling mechanism can be included and associated with the connector portion so as to provide the connector portion with substantially uniform contact across a contact surface area with the conducting member. Methods of using the heating device are also disclosed.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: November 24, 2015
    Assignee: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Cory Timoney
  • Publication number: 20150183642
    Abstract: The present invention relates to systems and methods for generating nanoscopically aligned carbon nanotubes in yarns, tapes and sheets. Some embodiments relate to methods and systems to allow in situ alignment of the tubes within the growth chamber. In particular, processes for in situ alignment include: (1) gas flow alignment using gas lenses introduced within the reaction tube, (2) electrostatic alignment using electrostatic lenses surrounding the reaction tube, (3) gas flow alignment by convergent flow within the reaction tube, (4) placing catalysts on a fixed substrate and flowing reaction gas parallel to the substrate. Other embodiments involve post processing of the CNT material in order to align the materials once it has been produced.
    Type: Application
    Filed: December 1, 2014
    Publication date: July 2, 2015
    Inventors: David S. Lashmore, Mark Schauer, Diana Lewis, Thomas Van Vechten, David Degtiarov
  • Publication number: 20150176163
    Abstract: A system that receives nanomaterials, forms nanofibrous materials therefrom, and collects these nanofibrous materials for subsequent applications. The system include a housing coupled to a synthesis chamber within which nanotubes are produced. A spindle may extend from within the housing, across the inlet, and into the chamber for collecting nanotubes and twisting them into a yarn. A body portion may be positioned at an intake end of the spindle. The body portion may include a pathway for imparting a twisting force onto the flow of nanotubes and guide them into the spindle for collection and twisting into the nanofibrous yarn. Methods and apparatuses for forming nanofibrous are also disclosed.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 25, 2015
    Inventors: David S. Lashmore, Joseph J. Brown, Jared K. Chaffee, Bruce Resnicoff, Peter Antoinette
  • Patent number: 9061913
    Abstract: An apparatus for use with a reactor for synthesis of nanostructures is provided. The apparatus includes a chamber having one end in fluid communication with the reactor and defining a pathway along which a fluid mixture for the synthesis of nanostructures can be injected into the reactor. The apparatus also has a tube in fluid communication with an opposite of the chamber to impart a venturi effect in order to generate from the fluid mixture small droplets prior to introducing the fluid mixture into the chamber. A heating zone is situated downstream from the tube to provide a temperature range sufficient to permit the formation, from components within the fluid mixture, of catalyst particles upon which nanostructures can be generated. A mechanism is further provided at a distal end of the chamber to minimize turbulent flow as the fluid mixture exits the chamber, and to impart a substantially laminar flow thereto. A method for synthesis of nanostructures is also provided.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: June 23, 2015
    Assignee: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Jared Chaffee, Mark Schauer
  • Publication number: 20150107890
    Abstract: A cable having a conducting member made from a nanostructure-based material, and a shielding layer made of nanostructure-based material. The shielding layer can be circumferentially situated about the conducting member so as to enhance conductivity along the conducting member. A coupling mechanism may be situated between the shielding layer and the conducting member so as to secure the shielding layer in its position on the conducting member. A method of making the cable is also disclosed.
    Type: Application
    Filed: August 29, 2014
    Publication date: April 23, 2015
    Inventors: Jennifer Mann, David S. Lashmore, Brian White, Peter L. Antoinette
  • Patent number: 8999285
    Abstract: A system that receives nanomaterials, forms nanofibrous materials therefrom, and collects these nanofibrous materials for subsequent applications. The system include a housing coupled to a synthesis chamber within which nanotubes are produced. A spindle may extend from within the housing, across the inlet, and into the chamber for collecting nanotubes and twisting them into a yarn. A body portion may be positioned at an intake end of the spindle. The body portion may include a pathway for imparting a twisting force onto the flow of nanotubes and guide them into the spindle for collection and twisting into the nanofibrous yarn. Methods and apparatuses for forming nanofibrous are also disclosed.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: April 7, 2015
    Assignee: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Joseph J. Brown, Jared K. Chaffee, Bruce Resnicoff, Peter Antoinette
  • Publication number: 20150033937
    Abstract: A method and apparatus for producing boron nitride nanotubes and continuous boron nitride nanotube yarn or tapes is provided. The apparatus includes rotating reaction tubes that allow for continuous chemical vapor deposition of boron nitride nanotubes. The rotation of the reaction tubes allows the boron nitride nanotubes to be spun into yarns or made into tapes, without post process or external rotation or spinning of the gathered nanotubes. Boron nitride nanotube yarns or tapes of great length can be produced as a result, thereby providing industry with a readily useable format for this type of material. Dopants such as carbon can be added to engineer the band gap of the nanotubes. Catalysts may be formed outside or inside the reactor.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Applicant: UNIVERSITY OF NEW HAMPSHIRE
    Inventors: David S. Lashmore, Tyler Bennett
  • Patent number: 8847074
    Abstract: A cable having a conducting member made from a nanostructure-based material, and a shielding layer made of nanostructure-based material. The shielding layer can be circumferentially situated about the conducting member so as to enhance conductivity along the conducting member. A coupling mechanism may be situated between the shielding layer and the conducting member so as to secure the shielding layer in its position on the conducting member. A method of making the cable is also disclosed.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: September 30, 2014
    Assignee: Nanocomp Technologies
    Inventors: Jennifer Mann, David S. Lashmore, Brian White, Peter L. Antoinette
  • Patent number: 8722171
    Abstract: A nanotube-based insulator is provided having thermal insulating properties. The insulator can include a plurality of nanotube sheets stacked on top of one another. Each nanotube sheet can be defined by a plurality of carbon nanotubes. The plurality of carbon nanotubes can be configured so as to decrease normal-to-plane thermal conductivity while permitting in-plane thermal conductivity. A plurality of spacers can be situated between adjacent nanotube sheets so as to reduce interlayer contact between the nanotubes in each sheet. The plurality of spacers can be ceramic or alumina dots or provided by texturing the nanotube sheets.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: May 13, 2014
    Assignee: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Diana Lewis
  • Publication number: 20130264116
    Abstract: An apparatus having a conductive body defined by a plurality of nanotubes forming a planar structure. The apparatus further includes a plurality of junctions, formed by adjacent nanotubes, and a plurality of conductive deposits positioned at the junctions to electrically join the adjacent nanotubes at the junctions and reduce electrical resistance between the nanotubes, thereby increasing overall conductivity of the body.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 10, 2013
    Applicant: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Paul Jarosz, Joe Johnson
  • Publication number: 20130039838
    Abstract: The present disclosure provides systems and methods for production of nanostructures using a plasma generator. In an embodiment, a system for use with a reactor for synthesis of nanostructures may include a chamber defining a pathway for directing a fluid mixture for the synthesis of nanostructures through the chamber. The system may further include one or more heating zones disposed along the chamber to provide a temperature gradient in the chamber to form catalyst particles upon which nanostructures can be generated from the components of the fluid mixture. The system may also include a plasma generator for generating a plasma flame in a conduit through which the fluid mixture may be passed to decompose a carbon source in the fluid mixture into its constituent atoms before proceeding into the reactor for formation of nanostructures.
    Type: Application
    Filed: July 27, 2012
    Publication date: February 14, 2013
    Applicant: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Robert Dean
  • Patent number: 8354593
    Abstract: One method of fabricating hybrid conductors includes complexing conductive metal elements (e.g., silver, gold, copper), transition metal elements, alloys, wires, or combinations thereof, with carbon nanotube materials. In the alternative, the hybrid conductors may be formed by doping the carbon nanotube materials in salt solutions.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: January 15, 2013
    Assignee: Nanocomp Technologies, Inc.
    Inventors: Brian White, Craig Lombard, David S. Lashmore
  • Publication number: 20120315539
    Abstract: A secondary battery capable of being charged after discharging is provided. The battery includes a positive electrode, made from a sheet of carbon nanotubes infiltrated with mixed metal oxides, and a negative electrode made from a sheet of carbon nanotubes with silicon or germanium particles.
    Type: Application
    Filed: February 7, 2012
    Publication date: December 13, 2012
    Applicant: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Amanda Simpson
  • Publication number: 20120312343
    Abstract: Systems for producing electrical energy from heat are disclosed. The system may include a carbon-nanotube based pathway along which heat from a source can be directed. An array of thermoelectric elements for generating electrical energy may be situated about a surface of the pathway to enhance the generation of electrical energy. A carbon nanotube-based, heat-dissipating member may be in thermal communication with the array of thermoelectric elements and operative to create a heat differential between the thermoelectric elements and the pathway by dissipating heat from the thermoelectric elements. The heat differential may allow the thermoelectric elements to generate the electrical energy. Methods for producing electrical energy are also disclosed.
    Type: Application
    Filed: April 12, 2012
    Publication date: December 13, 2012
    Applicant: Nanocomp Technologies, Inc.
    Inventors: Tom VanVechten, David S. Lashmore, Diana Lewis
  • Publication number: 20120276799
    Abstract: A method and system for aligning nanotubes within an extensible structure such as a yarn or non-woven sheet. The method includes providing an extensible structure having non-aligned nanotubes, adding a chemical mixture to the extensible structure so as to wet the extensible structure, and stretching the extensible structure so as to substantially align the nanotubes within the extensible structure. The system can include opposing rollers around which an extensible structure may be wrapped, mechanisms to rotate the rollers independently or away from one another as they rotate to stretch the extensible structure, and a reservoir from which a chemical mixture may be dispensed to wet the extensible structure to help in the stretching process.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 1, 2012
    Applicant: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Robert Braden, Anastasios John Hart, John Welch
  • Patent number: 8246886
    Abstract: A method and system for aligning nanotubes within an extensible structure such as a yarn or non-woven sheet. The method includes providing an extensible structure having non-aligned nanotubes, adding a chemical mixture to the extensible structure so as to wet the extensible structure, and stretching the extensible structure so as to substantially align the nanotubes within the extensible structure. The system can include opposing rollers around which an extensible structure may be wrapped, mechanisms to rotate the rollers independently or away from one another as they rotate to stretch the extensible structure, and a reservoir from which a chemical mixture may be dispensed to wet the extensible structure to help in the stretching process.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 21, 2012
    Assignee: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Robert Braden, Anastasios John Hart, John Welch
  • Publication number: 20120177926
    Abstract: A nanostructured sheet that can include a substantially planar body, a plurality of nanotubes defining a matrix within the body, and a protonation agent that can be dispersed throughout the matrix of nanotubes for enhancing proximity of adjacent nanotubes to one another. A method of making such a nanostructured sheet is also disclosed.
    Type: Application
    Filed: May 7, 2009
    Publication date: July 12, 2012
    Inventors: Jennifer Mann, David S. Lashmore, Brian White, Peter L. Antoinette
  • Publication number: 20120171411
    Abstract: A nanotube-based insulator is provided having thermal insulating properties. The insulator can include a plurality of nanotube sheets stacked on top of one another. Each nanotube sheet can be defined by a plurality of carbon nanotubes. The plurality of carbon nanotubes can be configured so as to decrease normal-to-plane thermal conductivity while permitting in-plane thermal conductivity. A plurality of spacers can be situated between adjacent nanotube sheets so as to reduce interlayer contact between the nanotubes in each sheet. The plurality of spacers can be ceramic or alumina dots or provided by texturing the nanotube sheets.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 5, 2012
    Applicant: Nanocomp Technologies, Inc.
    Inventors: David S. Lashmore, Diana Lewis
  • Publication number: 20120118552
    Abstract: The device for extracting heat from carbon nanotubes wires or cables used under high power applications is provided. The device can include a thermally conductive member for placement against a heat source and for directing heat away from the heat source to a heat dissipating medium. The device can further include an electrically conductive member positioned on the thermally conductive member and made from a layer of carbon nanotubes, to reduce electrical resistance along the electrically conductive member. A geometric pattern can be imparted to the electrically conductive member to enhance dissipation of heat away from the thermally conductive member and the heat source.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 17, 2012
    Applicant: Nanocomp Technologies, Inc.
    Inventors: Brian White, Craig Lombard, David S. Lashmore