Patents Examined by Stanley S. Silverman
  • Patent number: 10384313
    Abstract: A brazing filler metal with excellent wetting behavior on stainless steel base material is provided. The brazing filler metal produces a brazed joint with high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder comprises: 11-35 wt % chromium, 0-30 wt % nickel, 2-20 wt % copper, 2-10 wt % silicon, 4-10 wt % phosphorous, 0-10 wt % manganese, and at least 20 wt % iron, and if Si is equal to or less than 6 wt % then P should be above 8 wt %, and if P is less or equal to 8 wt % then Si should be above 6 wt %.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: August 20, 2019
    Assignee: HÖGANÄS AB (PUBL)
    Inventor: Ulrika Persson
  • Patent number: 8252259
    Abstract: Nano-sized rare earth metal oxide particles are prepared from aqueous reverse micelles. The engineered nanoparticles have large surface area to volume ratios, and uniformly incorporate a surfactant in each particle, so that when applied to the inner surface of a pipeline or sprayed onto a fluid stream in a pipeline, the particles reduce the roughness of the inside surface of pipe being used to transport fluid. The application of a nanolayer of this novel nanoceria mixture causes a significant reduction in pressure drops, friction, and better recovery and yield of fluid flowing through a pipeline.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: August 28, 2012
    Assignees: University of Central Florida Research Foundation, Inc., CC Technologies Laboratories, Inc.
    Inventors: Sudipta Seal, William P. Jepson, Sameer Deshpande, Suresh C. Kuiry, Swanand D. Patil
  • Patent number: 7947246
    Abstract: A carbon material suitable for the preparation of electrodes for electrochemical capacitors is obtained by single-stage carbonization of biopolymers with a large content of heteroatoms. Neither addition of an activating agent during carbonization nor subsequent gas phase activation is necessary. Several biopolymers which are available by extraction from seaweed are suitable precursors. Alternatively, the seaweed containing such biopolymers is carbonized directly.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: May 24, 2011
    Assignees: SGL Carbon SE, Centre National de la Recherche Sientifique, L'Universite d'Orleans
    Inventors: Martin Cadek, Francois Beguin, Encarnacion Raymundo-Pinero
  • Patent number: 7939046
    Abstract: A process for producing a microporous graphite foam including a matrix of graphite fibers joined by a graphitized graphite-forming precursor. In one embodiment, the process includes providing a plurality of graphite fibers; mixing the graphite fibers with a graphite-forming precursor; compressing the mixture; forming a precursor matrix comprising the graphite fiber and the graphite-forming precursor; first heating the matrix to a temperature at which the graphite-forming precursor is carbonized, forming a carbonized matrix; and second heating the carbonized matrix to a temperature at which the carbonized graphite-forming precursor is graphitized, forming the microporous graphite foam. The graphite foam has one or more of pore sizes less than about ten microns, low bulk density, high physical strength and good machinability, while also having the desirable characteristics of graphite, including high thermal conductivity, electrical conductivity and solderability.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: May 10, 2011
    Assignee: Raytheon Company
    Inventor: Philip Christopher Theriault
  • Patent number: 7926440
    Abstract: Apparatus and method for synthesizing nanostructures in a controlled process. An embodiment of the apparatus comprises a stage or substrate holder that is heated, e.g., resistively, and is the primary source of heating for the substrate for nanostructure synthesis. The substrate and substrate heater are enclosed in a chamber, e.g., a metal chamber, which is ordinarily at a lower temperature than are the substrate and substrate heater during synthesis. Some embodiments of the invention are particularly useful for chemical vapor deposition (CVD), low pressure CVD (LPCVD), metal organic CVD (MOCVD), and general vapor deposition techniques. Some embodiments of the present invention allow for in situ characterization and treatment of the substrate and nanostructures.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 19, 2011
    Assignee: Etamota Corporation
    Inventors: Thomas W. Tombler, Jr., Jon W. Lai, Brian Y. Lim, Borys Kolasa
  • Patent number: 7922993
    Abstract: A method for producing carbon nanostructures according to the invention includes injecting acetylene gas into a reactant liquid. The injected acetylene molecules are then maintained in contact with the reactant liquid for a period of time sufficient to break the carbon-hydrogen bonds in at least some of the acetylene molecules, and place the liberated carbon ions in an excited state. This preferred method further includes enabling the liberated carbon ions in the excited state to traverse a surface of the reactant liquid and enter a collection area. Collection surfaces are provided in the collection area to collect carbon nanostructures.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: April 12, 2011
    Assignee: Clean Technology International Corporation
    Inventor: Anthony S. Wagner
  • Patent number: 7914684
    Abstract: A method and apparatus for treating mixed waste by pyrolysis. Organic mass is carbonized by heating to carbon in a pyrolysis reactor (3) in an oxygen-free environment. Pyrolysis gases are distilled for oil and the gases are used for energy production. Solid matter resulting from pyrolysis is sieved for separating inorganic coarse particles from a carbon fraction. The carbon fraction is milled in two operations, first with a roller mill (8) and then with a jet mill (10), a removal of metal being performed between the operations. The pulverized carbon fraction is classified by means of ionizing particle separators (11, 12, 13). The multi-stage particle separation is followed by discharging clean air and recovering fine carbon.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: March 29, 2011
    Assignee: BCDE Group Waste Management Ltd Oy
    Inventor: Hannu L. Suominen
  • Patent number: 7901653
    Abstract: A method for producing carbon nanostructures according to the invention includes injecting acetylene gas into a reactant liquid. The injected acetylene molecules are then maintained in contact with the reactant liquid for a period of time sufficient to break the carbon-hydrogen bonds in at least some of the acetylene molecules, and place the liberated carbon ions in an excited state. This preferred method further includes enabling the liberated carbon ions in the excited state to traverse a surface of the reactant liquid and enter a collection area. Collection surfaces are provided in the collection area to collect carbon nanostructures.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 8, 2011
    Assignee: Clean Technology International Corporation
    Inventor: Anthony S. Wagner
  • Patent number: 7887775
    Abstract: Method and apparatus for producing filamentary structures. The structures include single-walled nanotubes. The method includes combusting hydrocarbon fuel and oxygen to establish a non-sooting flame and providing an unsupported catalyst to synthesize the filamentary structure in a post-flame region of the flame. Residence time is selected to favor filamentary structure growth.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: February 15, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Murray J. Height, Jack B. Howard, John B. Vandersande
  • Patent number: 7833493
    Abstract: A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: November 16, 2010
    Assignee: Nano-C, Inc.
    Inventors: Jack B. Howard, David F. Kronholm, Anthony J. Modestino, Henning Richter
  • Patent number: 7833497
    Abstract: A method of processing fullerenes includes generating a gas stream having suspended soot particles and condensable gases, wherein the condensable gases comprising fullerenes, and separating at least a portion of the condensable gases from the suspended soot particles using a gas/solid separations process. At least a portion of the fullerenes in the condensable gases can be condensed and collected after separation of the condensable gases.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: November 16, 2010
    Assignee: Nano-C, LLC.
    Inventors: David F. Kronholm, Jack B. Howard
  • Patent number: 7829055
    Abstract: A method of functionalizing nano-carbon materials with a diameter less than 1 ?m, comprising: contacting the nano-carbon materials with a free radical generating compound such as azo-compound in an organic solvent under an inert gas atmosphere, thereby obtaining nano-carbon materials with functional groups thereon. The physical and chemical properties of the nano-carbon materials can be modified through the aforementioned method.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: November 9, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chrong-Ching Lee, Kuo-Chen Shih, Mei Hua Wang, Sui-Wen Ho, Shu-Jiuan Huang
  • Patent number: 7829057
    Abstract: Methods of producing carbon black in a multi-stage reaction are described. Also described is carbon black formed from the processes.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: November 9, 2010
    Assignee: Cabot Corporation
    Inventors: Yakov E. Kutsovsky, William L. Sifleet, Sheldon B. Davis, Francois M. Terrade, Gregory T. Gaudet
  • Patent number: 7820131
    Abstract: The present invention is directed to new uses and applications for colorless, single-crystal diamonds produced at a rapid growth rate. The present invention is also directed to methods for producing single crystal diamonds of varying color at a rapid growth rate and new uses and applications for such single-crystal, colored diamonds.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: October 26, 2010
    Assignee: Carnegie Institution of Washington
    Inventors: Russell J. Hemley, Ho-Kwang Mao, Chih-Shiue Yan
  • Patent number: 7820130
    Abstract: The present invention is directed to functionalized nanoscale diamond powders, methods for making such powders, applications for using such powders, and articles of manufacture comprising such powders. Methods for making such functionalized nanodiamond powders generally comprise a fluorination of nanodiamond powder. In some embodiments, such methods comprise reacting fluorinated nanodiamond powder with a subsequent derivatization agent, such as a strong nucleophile.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: October 26, 2010
    Assignee: William Marsh Rice University
    Inventors: Valery N. Khabashesku, Yu Liu, John L. Margrave, Mary Lou Margrave, legal representative
  • Patent number: 7815886
    Abstract: A method includes isolating carbon atoms as conditioned carbide anions below a surface of a reactant liquid. The conditioned carbide anions are then enabled to escape from the reactant liquid to a collection area where carbon nanostructures may form. A carbon structure produced in this fashion includes at least one layer made up of hexagonally arranged carbon atoms. Each carbon atom has three covalent bonds to adjoining carbon atoms and one unbound pi electron.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 19, 2010
    Assignee: Clean Technology International Corporation
    Inventor: Anthony S. Wagner
  • Patent number: 7815885
    Abstract: A method includes liberating carbon atoms from hydrocarbon molecules by reaction with or in a reactant liquid and maintaining the liberated carbon atoms in an excited state. The chemically excited liberated carbon atoms are then enabled to traverse a surface of the reactant liquid and are directed across a collection surface. The collection surface and the conditions at and around the collection surface are maintained so that the liberated carbon atoms in the excited state phase change to a ground state by carbon nanostructure self-assembly.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 19, 2010
    Assignee: Clean Technology International Corporation
    Inventor: Anthony S. Wagner
  • Patent number: 7799309
    Abstract: A process for enhancing the expansion of intercalated graphite flake is presented. The process includes annealing the graphite flake at a temperature of at least about 3000° C. prior to intercalation and intercalating in the presence of a lubricious additive.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: September 21, 2010
    Assignee: GrafTech International Holdings Inc.
    Inventors: Robert Anderson Reynolds, III, Ronald Alfred Greinke
  • Patent number: 7794601
    Abstract: Chars may be produced by carbonization or pyrolysis of poultry manure. Chars produced from poultry manure by the method described herein exhibit enhanced activity for metal ion adsorption.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: September 14, 2010
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Isabel M. Lima, Wayne E. Marshall
  • Patent number: 7794684
    Abstract: Methods of producing carbon nanostructures utilizing a polymer and a nanostructure template to form carbon nanostructures are disclosed. The method does not require a metal catalyst.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: September 14, 2010
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Jianying Miao, Ning Wang, Ping Sheng