Patents by Inventor Daniel M. Pierpont

Daniel M. Pierpont 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: 10446868
    Abstract: An automated roll to roll method of making a fuel cell roll good subassembly is described wherein an elongated first subgasket web having a plurality of apertures is moved relative to a plurality of individual electrolyte membranes, each individual electrolyte membrane having a center region. The individual electrolyte membranes are aligned with the first subgasket web so that a center region of each electrolyte membrane is aligned with an aperture of the first subgasket web and the individual electrolyte membranes are attached to the first subgasket web.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 15, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Eric J. Iverson, Daniel M. Pierpont, Michael A. Yandrasits, Steven J. Hamrock, Stephan J. Obradovich, Donald G. Peterson
  • Patent number: 10361441
    Abstract: Membrane electrode assembly comprising a first gas diffusion layer having a first microporous layer on a major surface thereof, wherein the first microporous layer has a major surface, wherein the major surface of the first microporous layer has discontinuous areas therein substantially free of microporous material, and wherein at least a portion of the first discontinuous areas has adhesive therein; and methods for making the same. Membrane electrode assemblies described herein are useful, for example, in fuel cells.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 23, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Daniel M. Pierpont, Joseph W. Frisk, Eric J. Hanson
  • Publication number: 20190181461
    Abstract: The present disclosure relates membrane-electrode assemblies and electrochemical cells and liquid flow batteries produced therefrom. The membrane-electrode assemblies include a first porous electrode; an ion permeable membrane, having a first major surface and an opposed second major surface; a first discontinuous transport protection layer disposed between the first porous electrode and the first major surface of the ion permeable membrane; and a first adhesive layer in contact with the first porous electrode and at least one of the first discontinuous transport protection layer and the ion permeable membrane. The first adhesive layer is disposed along the perimeter of the membrane-electrode assembly.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 13, 2019
    Inventors: Brian T. Weber, Brandon A. Bartling, Onur Sinan Yordem, Andrew T. Haug, John E. Abulu, Gregory M. Haugen, Kazuki Noda, Shunsuke Suzuki, Bharat R. Acharya, Daniel M. Pierpont, David J. Miller, Eric J. Iverson
  • Publication number: 20190097241
    Abstract: The present disclosure relates to electrode assemblies, membrane-electrode assemblies and electrochemical cells and liquid flow batteries produced therefrom. The electrode and membrane-electrode assemblies include (i) a porous electrode having a first major surface with a first surface area, Ae, an opposed second major surface and a plurality of voids; (ii) a discontinuous transport protection layer, comprising polymer, disposed on the first major surface and having a cross-sectional area, Ap, substantially parallel to the first major surface; and (iii) an interfacial region wherein the interfacial region includes a portion of the polymer embedded in at least a portion of the plurality of voids, a portion of the porous electrode embedded in a portion of the polymer or a combination thereof; and wherein 0.02Ae?Ap?0.85Ae and the porous electrode and discontinuous transport protection layer form an integral structure.
    Type: Application
    Filed: March 15, 2017
    Publication date: March 28, 2019
    Inventors: Brian T. Weber, Brandon A. Bartling, Onur S. Yordem, Raymond P. Johnston, Andrew T. Haug, John E. Abulu, Gregory M. Haugen, Kazuki Noda, Shunsuke Suzuki, Jimmy M. Le, Blake R. Griffith, Daniel E. Johnson, Bharat R. Acharya, Bradley W. Eaton, Michael D. Romano, Daniel M. Pierpont, David J. Miller, Eric J. Iverson
  • Publication number: 20180006315
    Abstract: An article comprising a first gas distribution layer (100), a first gas dispersion layer (200), or a first electrode layer, having first and second opposed major surfaces and a first adhesive layer having first and second opposed major surfaces, wherein the second major surface (102) of the first gas distribution layer (100), the second major surface (202) of the first gas dispersion layer (200), or the first major surface of the first electrode layer, as applicable, has a central area, wherein the first major surface of the first adhesive layer contacts at least the central area of the second major surface of the first gas distribution layer, the second major surface of the first gas dispersion layer, or the first major surface of the first electrode layer, as applicable, and wherein the first adhesive layer comprises a porous network of first adhesive including a continuous pore network extending between the first and second major surfaces of the first adhesive layer.
    Type: Application
    Filed: December 15, 2015
    Publication date: January 4, 2018
    Inventors: Daniel M. Pierpont, Michael A. Yandrasits, Joseph W. Frisk
  • Patent number: 9829453
    Abstract: An apparatus comprising: first and second aligned roller pairs each having a nip between the aligned rollers of each aligned roller pair, wherein each of the first and second roller pairs have parallel axes of rotation, wherein each of the first and second aligned roller pairs is configured to electrically excite a portion of the web passed through the nip and to measure an electrical property of the excited web, wherein the first and second aligned roller pairs are configured to electrically excite a portion of the web passed through their respective nips are configured to provide a line of charge parallel to the axes of rotation of the respective roller pairs, and wherein the rollers of the aligned roller pairs are each electrically insulated from each other and from the apparatus; and a processing unit configured to at least analyze the measured electrical properties.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: November 28, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Orlin B. Knudson, Daniel M. Pierpont, James F. Poch
  • Publication number: 20170317368
    Abstract: A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane comprising a first polymer electrolyte and at least one manganese compound; and one or more electrode layers comprising a catalyst and at least one cerium compound. The membrane electrode assembly demonstrates an unexpected combination of durability and performance.
    Type: Application
    Filed: July 13, 2017
    Publication date: November 2, 2017
    Inventors: Daniel M. Pierpont, Steven J. Hamrock, Matthew H. Frey
  • Patent number: 9728801
    Abstract: A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane comprising a first polymer electrolyte and at least one manganese compound; and one or more electrode layers comprising a catalyst and at least one cerium compound. The membrane electrode assembly demonstrates an unexpected combination of durability and performance.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: August 8, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Daniel M. Pierpont, Steven J. Hamrock, Matthew H. Frey
  • Publication number: 20170212067
    Abstract: An apparatus comprising: first and second aligned roller pairs each having a nip between the aligned rollers of each aligned roller pair, wherein each of the first and second roller pairs have parallel axes of rotation, wherein each of the first and second aligned roller pairs is configured to electrically excite a portion of the web passed through the nip and to measure an electrical property of the excited web, wherein the first and second aligned roller pairs are configured to electrically excite a portion of the web passed through their respective nips are configured to provide a line of charge parallel to the axes of rotation of the respective roller pairs, and wherein the rollers of the aligned roller pairs are each electrically insulated from each other and from the apparatus; and a processing unit configured to at least analyze the measured electrical properties.
    Type: Application
    Filed: April 10, 2017
    Publication date: July 27, 2017
    Inventors: Orlin B. Knudson, Daniel M. Pierpont, James F. Poch
  • Patent number: 9666883
    Abstract: A method for assessing the quality of a membrane electrode assembly (MEA), the method comprising: applying a first voltage across the thickness of a first (MEA) passed through a nip of a first pair of rollers thereby providing a first charge to the first MEA; determining a first electrical figure of merit (FOM) of the first charged MEA at a first period of time; after the first period of time applying a second voltage across the thickness of the first (MEA) passed through a nip of a second pair of rollers thereby providing a second charge to the first (MEA); determining a second electrical (FOM) of the second charged first (MEA) at a second, later period of time; and calculating a total electrical (FOM) using the first and second electrical (FOM); and comparing the total electrical (FOM) to a predetermined quality value to assess the quality of the first (MEA).
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: May 30, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Orlin B. Knudson, Daniel M. Pierpont, James F. Poch
  • Publication number: 20160322651
    Abstract: Membrane electrode assembly comprising a first gas diffusion layer having a first microporous layer on a major surface thereof, wherein the first microporous layer has a major surface, wherein the major surface of the first microporous layer has discontinuous areas therein substantially free of microporous material, and wherein at least a portion of the first discontinuous areas have adhesive therein; and methods for making the same. Membrane electrode assemblies described herein are useful, for example, in fuel cells.
    Type: Application
    Filed: December 10, 2014
    Publication date: November 3, 2016
    Inventors: Daniel M. Pierpont, Joseph W. Frisk, Eric J. Hanson
  • Patent number: 9431670
    Abstract: A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: August 30, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Matthew H. Frey, Daniel M. Pierpont, Steven J. Hamrock
  • Publication number: 20160141642
    Abstract: An automated roll to roll method of making a fuel cell roll good subassembly is described wherein an elongated first subgasket web having a plurality of apertures is moved relative to a plurality of individual electrolyte membranes, each individual electrolyte membrane having a center region. The individual electrolyte membranes are aligned with the first subgasket web so that a center region of each electrolyte membrane is aligned with an aperture of the first subgasket web and the individual electrolyte membranes are attached to the first subgasket web.
    Type: Application
    Filed: January 25, 2016
    Publication date: May 19, 2016
    Inventors: Eric J. Iverson, Daniel M. Pierpont, Michael A. Yandrasits, Steven J. Hamrock, Stephan J. Obradovich, Donald G. Peterson
  • Patent number: 9276284
    Abstract: A fuel cell roll good subassembly is described that includes a plurality of individual electrolyte membranes. One or more first subgaskets are attached to the individual electrolyte membranes. Each of the first subgaskets has at least one aperture and the first subgaskets are arranged so the center regions of the individual electrolyte membranes are exposed through the apertures of the first subgaskets. A second subgasket comprises a web having a plurality of apertures. The second subgasket web is attached to the one or more first subgaskets so the center regions of the individual electrolyte membranes are exposed through the apertures of the second subgasket web. The second subgasket web may have little or no adhesive on the subgasket surface facing the electrolyte membrane.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 1, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Eric J. Iverson, Daniel M. Pierpont, Michael A. Yandrasits, Steven J. Hamrock, Stephan J. Obradovich, Donald G. Peterson
  • Publication number: 20150221968
    Abstract: A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane comprising a first polymer electrolyte and at least one manganese compound; and one or more electrode layers comprising a catalyst and at least one cerium compound. The membrane electrode assembly demonstrates an unexpected combination of durability and performance.
    Type: Application
    Filed: April 13, 2015
    Publication date: August 6, 2015
    Inventors: Daniel M. Pierpont, Steven J. Hamrock, Matthew H. Frey
  • Patent number: 9023496
    Abstract: A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane comprising a first polymer electrolyte and at least one manganese compound; and one or more electrode layers comprising a catalyst and at least one cerium compound. The membrane electrode assembly demonstrates an unexpected combination of durability and performance.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: May 5, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Daniel M. Pierpont, Steven J. Hamrock, Matthew H. Frey
  • Publication number: 20150061693
    Abstract: Apparatus and method for assessing the quality of membrane electrode assemblies.
    Type: Application
    Filed: March 19, 2013
    Publication date: March 5, 2015
    Inventors: Orlin B. Knudson, Daniel M. Pierpont, James F. Poch
  • Patent number: 8921002
    Abstract: A first transport system moves a web comprising a subgasketed CCM layer and an application system applies a crosslinkable resin to at least a subgasketed portion of the subgasketed CCM layer. The crosslinkable resin preferably comprises a photocurable cationic crosslinkable resin. A first curing apparatus subjects an exposed surface of the crosslinkable resin to a photo curing process to initiate curing of the crosslinkable resin. A second transport system moves a GDL into adhering contact with a partially cured exposed surface of the crosslinkable resin of the CCM layer so as to form an MEA layer. A second curing apparatus subjects the GDL, partially cured crosslinkable resin, and CCM layer structure to a thermal curing process to substantially complete curing of the crosslinkable resin. A converting system is configured to receive the MEA layer and produce a plurality of discrete MEAs from the MEA layer.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: December 30, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Michael A. Yandrasits, Michael T. Hicks, Daniel M. Pierpont
  • Publication number: 20140093808
    Abstract: A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Matthew H. Frey, Daniel M. Pierpont, Steven J. Hamrock
  • Publication number: 20140093807
    Abstract: A fuel cell roll good subassembly is described that includes a plurality of individual electrolyte membranes. One or more first subgaskets are attached to the individual electrolyte membranes. Each of the first subgaskets has at least one aperture and the first subgaskets are arranged so the center regions of the individual electrolyte membranes are exposed through the apertures of the first subgaskets. A second subgasket comprises a web having a plurality of apertures. The second subgasket web is attached to the one or more first subgaskets so the center regions of the individual electrolyte membranes are exposed through the apertures of the second subgasket web. The second subgasket web may have little or no adhesive on the subgasket surface facing the electrolyte membrane.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Eric J. Iverson, Daniel M. Pierpont, Michael A. Yandrasits, Steven J. Hamrock, Stephan J. Obradovich, Donald G. Peterson