Patents by Inventor Roger L. Clough

Roger L. Clough 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: 5100587
    Abstract: A new type of RL light source consisting of a zeolite crystalline material, the intralattice spaces of which a tritiated compound and a luminophore are sorbed, and which material is optionally further dispersed in a refractive index-matched polymer matrix.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: March 31, 1992
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Roger L. Clough, John T. Gill, Daniel B. Hawkins, Clifford L. Renschler, Timothy J. Shepodd, Henry M. Smith
  • Patent number: 4997597
    Abstract: A solid state radioluminescent composition for light source comprises an optically clear polymer organic matrix containing tritiated organic materials and dyes capable of "red" shifting primary scintillation emissions from the polymer matrix. The tritiated organic materials are made by reducing, with tritium, an unsaturated organic compound that prior to reduction contains olefinic or alkynylic bonds.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: March 5, 1991
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Roger L. Clough, John T. Gill, Daniel B. Hawkins, Clifford L. Renschler, Timothy J. Shepodd, Henry M. Smith
  • Patent number: 4832870
    Abstract: An electrically conductive composite material is disclosed which comprises a conductive open-celled, low density, microcellular carbon foam filled with a non-conductive polymer or resin. The composite material is prepared in a two-step process consisting of first preparing the microcellular carbon foam from a carbonizable polymer or copolymer using a phase separation process, then filling the carbon foam with the desired non-conductive polymer or resin. The electrically conductive composites of the present invention has a uniform and consistant pattern of filler distribution, and as a result is superior over prior art materials when used in battery components, electrodes, and the like.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: May 23, 1989
    Assignee: The United States Department of Energy
    Inventors: Roger L. Clough, Alan P. Sylwester
  • Patent number: 4832881
    Abstract: A low density, open-celled microcellular carbon foam is disclosed which is prepared by dissolving a carbonizable polymer or copolymer in a solvent, pouring the solution into a mold, cooling the solution, removing the solvent, and then carbonizing the polymer or copolymer in a high temperature oven to produce the foam. If desired, an additive can be introduced in order to produce a doped carbon foam, and the foams can be made isotropic by selection of a suitable solvent. The low density, microcellular foams produced by this process are particularly useful in the fabrication of inertial confinement fusion targets, but can also be used as catalysts, absorbents, and electrodes.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: May 23, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Charles Arnold, Jr., James H. Aubert, Roger L. Clough, Peter B. Rand, Alan P. Sylwester
  • Patent number: 4673695
    Abstract: Low density, microporous polymer foams are provided by a process which comprises forming a solution of polymer and a suitable solvent followed by rapid cooling of the solution to form a phase-separated system and freeze the phase-separated system. The phase-separated system comprises a polymer phase and a solvent phase, each of which is substantially continuous within the other. The morphology of the polymer phase prior to and subsequent to freezing determine the morphology of the resultant foam.Both isotropic and anisotropic foams can be produced. If isotropic foams are produced, the polymer and solvent are tailored such that the solution spontaneously phase-separates prior to the point at which any component freezes. The morphology of the resultant polymer phase determines the morphology of the resultant foam and the morphology of the polymer phase is retained by cooling the system at a rate sufficient to freeze one or both components of the system before a change in morphology can occur.
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: June 16, 1987
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: James H. Aubert, Roger L. Clough, John G. Curro, Carlos A. Quintana, Edward M. Russick, Montgomery T. Shaw