Patents by Inventor Llewellyn Bentley Richardson, III

Llewellyn Bentley Richardson, III 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: 20170217120
    Abstract: A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer wherein the refractory layer comprises platelets in an amount at least 85% by weight with a dry areal weight of 15 to 50 gsm and has a residual moisture content of no greater than 10 percent by weight.
    Type: Application
    Filed: April 20, 2017
    Publication date: August 3, 2017
    Inventors: LLEWELLYN BENTLEY RICHARDSON, III, DARIUSZ WLODZIMIERZ KAWKA
  • Patent number: 9643711
    Abstract: A multilayer laminate for use as a flame barrier in an aircraft comprising (i) a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, (ii) an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., (iii) an inorganic refractory layer, and (iv) aramid paper comprising from 50 to 90 weight percent of aramid fibers and from 10 to 50 weight percent of meta-aramid binder wherein the inorganic refractory layer of (iii) comprises platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and a residual moisture content of no greater than 10 percent by weight.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: May 9, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Patent number: 9434142
    Abstract: A method of making a composite sandwich panel comprises the steps of (i) making a core structure, (ii) making at least one facesheet, (iii) bonding at least one of the at least one facesheets to the core structure, wherein the growth of a carbon nanotube structure is achieved during at least one of steps (i) to (iii).
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: September 6, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mikhail R Levit, Llewellyn Bentley Richardson, III, Warren Francis Knoff, Dariusz Wlodzimierz Kawka
  • Publication number: 20160101604
    Abstract: A multilayer laminate comprising a first polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, a first adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., an inorganic refractory layer comprising platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and having a residual moisture content of no greater than 10 percent by weight, a second adhesive layer having an areal weight of from 4 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and a second polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 minutes.
    Type: Application
    Filed: December 17, 2015
    Publication date: April 14, 2016
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Patent number: 9242717
    Abstract: A multilayer laminate comprising a first polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, a first adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., an inorganic refractory layer comprising platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and having a residual moisture content of no greater than 10 percent by weight, a second adhesive layer having an areal weight of from 4 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and a second polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 minutes.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: January 26, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Patent number: 9238505
    Abstract: A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer wherein the refractory layer comprises platelets in an amount at least 85% by weight with a dry areal weight of 15 to 50 gsm and has a residual moisture content of no greater than 10 percent by weight.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: January 19, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Publication number: 20150367608
    Abstract: A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer wherein the refractory layer comprises platelets in an amount at least 85% by weight with a dry areal weight of 15 to 50 gsm and has a residual moisture content of no greater than 10 percent by weight.
    Type: Application
    Filed: August 27, 2015
    Publication date: December 24, 2015
    Inventors: LLEWELLYN BENTLEY RICHARDSON, III, WARREN FRANCIS KNOFF, JIAN WANG
  • Publication number: 20150353184
    Abstract: A multilayer laminate for use as a flame barrier in an aircraft comprising (i) a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, (ii) an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., (iii) an inorganic refractory layer, and (iv) aramid paper comprising from 50 to 90 weight percent of aramid fibers and from 10 to 50 weight percent of meta-aramid binder wherein the inorganic refractory layer of (iii) comprises platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and a residual moisture content of no greater than 10 percent by weight.
    Type: Application
    Filed: May 6, 2015
    Publication date: December 10, 2015
    Inventors: LLEWELLYN BENTLEY RICHARDSON, III, WARREN FRANCIS KNOFF, JIAN WANG
  • Patent number: 9056666
    Abstract: A multilayer laminate for use as a flame barrier in an aircraft comprising (i) a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, (ii) an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., (iii) an inorganic refractory layer, and (iv) aramid paper comprising from 50 to 90 weight percent of aramid fibers and from 10 to 50 weight percent of meta-aramid binder wherein the inorganic refractory layer of (iii) comprises platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and a residual moisture content of no greater than 10 percent by weight.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: June 16, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Publication number: 20140072763
    Abstract: A multilayer laminate comprising a first polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, a first adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., an inorganic refractory layer comprising platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and having a residual moisture content of no greater than 10 percent by weight, a second adhesive layer having an areal weight of from 4 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and a second polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 minutes.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Publication number: 20140072762
    Abstract: A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer wherein the refractory layer comprises platelets in an amount at least 85% by weight with a dry areal weight of 15 to 50 gsm and has a residual moisture content of no greater than 10 percent by weight.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson III, Dariusz Wlodzimierz Kawka
  • Publication number: 20140065357
    Abstract: A multilayer laminate for use as a flame barrier in an aircraft comprising (i) a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, (ii) an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., (iii) an inorganic refractory layer, and (iv) aramid paper comprising from 50 to 90 weight percent of aramid fibers and from 10 to 50 weight percent of meta-aramid binder wherein the inorganic refractory layer of (iii) comprises platelets in an amount of at least 85% by weight with a dry areal weight of 15 to 50 gsm and a residual moisture content of no greater than 10 percent by weight.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 6, 2014
    Applicant: E I Du Pont De Nemours And Company
    Inventors: LLEWELLYN BENTLEY RICHARDSON, III, DARIUSZ WLODZIMIERZ KAWKA
  • Patent number: 8607927
    Abstract: A multilayer laminate comprising a first polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, a first adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C., an inorganic refractory layer, a second adhesive layer having an areal weight of from 4 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and a second polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, wherein at least one of the first or second polymeric film layers is thermoplastic.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 17, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Patent number: 8607926
    Abstract: A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 17, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Patent number: 8607928
    Abstract: A multilayer laminate for use as a flame barrier in an aircraft comprising a polymeric film layer capable of withstanding a temperature of at least 200 C for at least 10 min, an adhesive layer, an inorganic refractory layer and an aramid paper comprising from 50 to 90 weight percent of aramid fibers and from 10 to 50 weight percent of meta-aramid binder.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 17, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Llewellyn Bentley Richardson, III, Dariusz Wlodzimierz Kawka
  • Publication number: 20130196175
    Abstract: A method of making a composite sandwich panel comprises the steps of (i) making a core structure, (ii) making at least one facesheet, (iii) bonding at least one of the at least one facesheets to the core structure, wherein the growth of a carbon nanotube structure is achieved during at least one of steps (i) to (iii).
    Type: Application
    Filed: January 25, 2013
    Publication date: August 1, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mikhail R. LEVIT, Llewellyn Bentley RICHARDSON, III, Warren Francis KNOFF, Dariusz Wlodzimierz KAWKA
  • Patent number: 8387748
    Abstract: This invention is directed to a composite laminate comprising in order (a) a flame retardant polymeric moisture barrier (b) an inorganic platelet layer and (c) a flame retardant thermoplastic film layer The invention is also directed to a thermal insulation and acoustic blanket comprising a core of fibrous material or foam surrounded by the above composite laminate wherein the thermoplastic film layer of the composite laminate contacts and encapsulates the core.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 5, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Llewellyn Bentley Richardson, III, Jian Wang, Warren Francis Knoff
  • Publication number: 20120321848
    Abstract: A multilayer laminate comprising in order, a polymeric film layer capable of withstanding a temperature of at least 200 C. for at least 10 min, an adhesive layer having an areal weight of from 2 to 40 gsm capable of activation at a temperature of from 75 to 200 degrees C. and an inorganic refractory layer.
    Type: Application
    Filed: December 14, 2011
    Publication date: December 20, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson III, Dariusz Wlodzimierz Kawka
  • Patent number: RE46658
    Abstract: This invention is directed to a composite laminate comprising in order (a) a flame retardant polymeric moisture barrier (b) an inorganic platelet layer and (c) a flame retardant thermoplastic film layer The invention is also directed to a thermal insulation and acoustic blanket comprising a core of fibrous material or foam surrounded by the above composite laminate wherein the thermoplastic film layer of the composite laminate contacts and encapsulates the core.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: January 2, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Warren Francis Knoff, Jian Wang
  • Patent number: RE46859
    Abstract: This invention is directed to a composite laminate comprising in order (a) a flame retardant polymeric moisture barrier (b) an inorganic platelet layer and (c) a flame retardant thermoplastic film layer The invention is also directed to a thermal insulation and acoustic blanket comprising a core of fibrous material or foam surrounded by the above composite laminate wherein the thermoplastic film layer of the composite laminate contacts and encapsulates the core.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: May 22, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Llewellyn Bentley Richardson, III, Warren Francis Knoff, Jian Wang