Patents by Inventor Charles K. Baker

Charles K. Baker 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: 20240254695
    Abstract: A process for foam forming webs is disclosed. A foamed suspension of fibers is fed into a mixing chamber and then directed through a narrow constriction where the velocity of the foamed suspension of fibers is increased. From the narrow constriction, the foamed suspension of fibers enters a forming chamber which causes the foamed suspension of fibers to rapidly decrease in velocity. In one embodiment, for example, the foamed suspension of fibers undergoes a hydraulic jump resulting in significant fiber reorientation. Through the process, fiber orientation can be controlled. For example, webs can be produced that have comparable fiber orientation in the machine direction in comparison to the cross-machine direction.
    Type: Application
    Filed: June 27, 2022
    Publication date: August 1, 2024
    Inventors: Peter Wallace, Joseph K. Baker, Charles W. Colman
  • Patent number: 9388054
    Abstract: The present disclosure relates to luminescent phosphors and more particularly, to fluoride-based luminescent phosphors, and methods for their preparation in deep eutectic solvent (DES) systems. The luminescent phosphors are formed with accompanying particle size control, relatively higher crystallinity and relatively higher fluorescence intensity.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: July 12, 2016
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Robert D. Gutierrez, Benjamin R. Furman, Charles K. Baker
  • Publication number: 20150329776
    Abstract: The present disclosure relates to luminescent phosphors and more particularly, to fluoride-based luminescent phosphors, and methods for their preparation in deep eutectic solvent (DES) systems. The luminescent phosphors are formed with accompanying particle size control, relatively higher crystallinity and relatively higher fluorescence intensity.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 19, 2015
    Inventors: Robert D. GUTIERREZ, Benjamin R. FURMAN, Charles K. BAKER
  • Patent number: 9103046
    Abstract: The present invention is directed to composite films containing nanostructures within a polymer or monomeric matrix which composite may be formed on a metallic substrate and subsequently removed to provide bulk material. The nanostructures and polymer or monomer matrix may be assembled electrophoretically by initially providing a mixture of the nanostructures and polymer or monomer matrix material within generally anhydrous environments such as polar aprotic solvents followed by deposition of the composite film material.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: August 11, 2015
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Benjamin R. Furman, Stephen T. Wellinghoff, Charles K. Baker
  • Patent number: 8506782
    Abstract: A method of electrophoretic deposition of adsorbent media onto an electrically conducting substrate. The adsorbent media may include one or more porous coordination polymers and/or one or more secondary adsorbing particles. The adsorbent media may be continuously applied from a liquid composition at a selected thickness and at a controlled rate and as a function of voltage profiles.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: August 13, 2013
    Assignee: Southwest Research Institute
    Inventors: Charles K. Baker, Benjamin R. Furman, Joel J. Kampa, Christopher N. Tiftickjian
  • Publication number: 20120274616
    Abstract: A composite textile for generating an electrophoretically driven image. The textile has at least three layers. An outer (relative to an observer of the image) electrode layer is made from a transparent and electrically conductive material. A fibermat layer is under the outer electrode layer, and comprises a mat of one or more fibers, each fiber being transparent and dielectric and having a hollow core that contains a fluid suspension of particles (typically nanoparticles) of at least two color types. A pattern layer is under the fiber mat layer, and has an arrangement of features made from an electrically conductive material. When voltage is applied to the pattern layer, the particles respond by migrating toward the outer electrode or pattern layer, depending on their charge.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Cliff J. Scribner, James D. Oxley, Charles K. Baker
  • Publication number: 20120114926
    Abstract: A method of electrophoretic deposition of adsorbent media onto an electrically conducting substrate. The adsorbent media may include one or more porous coordination polymers and/or one or more secondary adsorbing particles.
    Type: Application
    Filed: August 13, 2010
    Publication date: May 10, 2012
    Applicant: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Charles K. BAKER, Benjamin R. FURMAN, Joel J. KAMPA, Christopher N. TIFTICKJIAN
  • Publication number: 20120006686
    Abstract: The present invention is directed to composite films containing nanostructures within a polymer or monomeric matrix which composite may be formed on a metallic substrate and subsequently removed to provide bulk material. The nanostructures and polymer or monomer matrix may be assembled electrophoretically by initially providing a mixture of the nanostructures and polymer or monomer matrix material within generally anhydrous environments such as polar aprotic solvents followed by deposition of the composite film material.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 12, 2012
    Applicant: Southwest Research Institute
    Inventors: Benjamin R. FURMAN, Stephen T. WELLINGHOFF, Charles K. BAKER
  • Patent number: 6249261
    Abstract: A direction-finding antenna constructed from polymer composite materials which are electrically conductive is shown with the polymer composite materials replacing traditional metal materials. An inherent advantage of replacing metal materials is significantly lower radar reflectivity (radar cross section) and lower weight. The reduced radar reflectivity reduces the range of detectability of the antenna by possible adversaries. Despite significantly lower radar reflectivity, the antenna assembly has direction-finding characteristics which are essentially equivalent to traditional metal antennas.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: June 19, 2001
    Assignee: Southwest Research Institute
    Inventors: Ruell F. Solberg, Jr., Dayle D. Winnie, Steven P. Saulnier, Charles K. Baker, Patrick J. Siemsen, Charles H. Parr
  • Patent number: 5580433
    Abstract: A thin film solid state amperometric detector for nitric oxide is provided based upon a mobile cation electrolyte that selectively transmits nitrosonium cations (NO*) therethrough. The presently most preferred embodiment employs NO-.beta.-alumina as the mobile cation electrolyte. The electrodes of the detector are preferably arranged in a bipotentiostat arrangement. The first and second working electrodes share a common reference electrode and a common counter electrode, which are positioned such that the potentials of the first and second working electrodes can be independently controlled. The first working electrode is exposed to a fluid (liquid or gaseous), whereas the second working electrode is normally isolated from the fluid. The first working electrode is set at a potential capable of oxidizing NO to NO+, the NO+ moves through the mobile cation solid electrolyte to the second electrode, and the second working electrode is set at a potential capable of reducing the NO+ back to NO.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: December 3, 1996
    Inventors: Charles K. Baker, Mohan R. A. Ram, Stephen T. Wellinghoff
  • Patent number: 5466350
    Abstract: A thin film, solid sate amperometric detector for mac oxide is provided based upon a mobile cation electrolyte that selectively transmits nitrosonium cations (NO.sup.+) therethrough. The presently most preferred embodiment employs NO-.beta.-alumina as the mobile cation electrolyte. The electrodes of the detector are preferably arranged in a bipotentiostat arrangement. The first and second working electrodes share a common reference electrode and a common counter electrode, which are positioned such that the potentials of the first and second working electrodes can be independently controlled. The first working electrode is exposed to a fluid (liquid or gaseous), whereas the second working electrode is normally isolated from the fluid. The first working electrode is set at a potential capable of oxidizing NO to NO.sup.+, the NO.sup.+ moves through the mobile cation solid electrolyte to the second electrode, and the second working electrode is set at a potential capable of reducing the NO.sup.+ back to NO.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: November 14, 1995
    Inventors: Charles K. Baker, Mohan R. A. Ram, Stephen T. Willinghoff
  • Patent number: 5409591
    Abstract: A thin film, solid state amperometric detector for nitric oxide is provided based upon a mobile cation electrolyte that selectively transmits nitrosonium cations (NO.sup.+) therethrough. The presently most preferred embodiment employs NO-.beta.-alumina as the mobile cation electrolyte. The electrodes of the detector are preferably arranged in a bipotentiostat arrangement. The first and second working electrodes share a common reference electrode and a common counter electrode, which are positioned such that the potentials of the first and second working electrodes can be independently controlled. The first working electrode is exposed to a fluid (liquid or gaseous), whereas the second working electrode is normally isolated from the fluid. The first working electrode is set at a potential capable of oxidizing NO to NO.sup.+, the NO.sup.+ moves through the mobile cation solid electrolyte to the second electrode, and the second working electrode is set at a potential capable of reducing the NO.sup.+ back to NO.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: April 25, 1995
    Inventors: Charles K. Baker, Mohan R. A. Ram, Stephen T. Willinghoff
  • Patent number: 5130412
    Abstract: An electrically conducting self-doped carbazole polymer of the formula: ##STR1## wherein A is a bifunctional molecule capable of bonding to a positively charged molecule at one end and is capable of bonding to a flexible spacer group Z at another end, Z is a flexible spacer group capable of bonding to an anionic group A at one end and is capable of bonding either to a nitrogen or aromatic electron withdrawing or electron donating group at another end, E is a bifunctional molecule capable of bonding to nitrogen at one end and is capable of bonding to a flexible spacer group Z at anther end, X is a positively charged counterion, and n is at least 2.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: July 14, 1992
    Assignee: Southwest Research Institute
    Inventors: Stephen T. Wellinghoff, Charles K. Baker
  • Patent number: 4994023
    Abstract: An electrochemical drug release article containing an electrically conducting self-doped carbazole polymer of the formula: ##STR1## wherein A is a bifunctional molecule capable of bonding to a positively charged molecule at one end and is capable of bonding to a flexible spacer group Z at another end, Z is a flexible spacer group capable of bonding to an anionic group A at one end and is capable of bonding either to a nitrogen or aromatic electron withdrawing or electron donating group at another end, E is a bifunctional molecule capable of bonding to nitrogen at one end and is capable of bonding to a flexible spacer group Z at another end, X is a positively charged counterion, and n is at least 2.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: February 19, 1991
    Inventors: Stephen T. Wellinghoff, Charles K. Baker