Patents by Inventor Thomas Scharf

Thomas Scharf 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: 10199788
    Abstract: The present invention relates to monolithic structures for use as an electrical contact. In particular, these structures are formed from a laminate alloy, which in turn is composed of a Mn+1AXn compound. Electrical contact assemblies and electrical components having such contacts are also described herein. In some example, such monolithic structures display increased wear resistance, which is useful for sliding electrical contacts.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: February 5, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Nicolas Argibay, Thomas Scharf
  • Patent number: 8486856
    Abstract: Process for producing activated carbon having a high catalytic activity, in which a carbonaceous material is brought into contact with nitrogen compounds, wherein the carbonaceous material is partially gasified with a mixture of steam, nitrogen and CO2 at temperatures above 800° C. in a manner known per se in a multistage fluidized bed and wherein a nitrogen compound is added into the furnace and/or at least one stage of the multistage fluidized bed.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: July 16, 2013
    Assignee: CarboTech AC GmbH
    Inventors: Klaus-Dirk Henning, Wolfgang Bongartz, Nicolai Daheim, Thomas Scharf
  • Patent number: 8317551
    Abstract: The invention relates to an electrical contact arrangement for high pulsed currents and for connection with a polygonal socket. The electrical contact arrangement includes first contact, arm, a second contact arm, an intermediate space provided between the first and second contact arms, and a third contact arm. The second contact arm positioned apart from the first contact arm in a deflection direction extending perpendicularly to the plug-in direction. The first contact arm and second contact arm extend substantially in a plug-in direction, and one of the first contact arm or second contact arm resiliently deflectable relative to the other contact arm in the deflection direction. The third contact arm extends in the plug-in direction and is positioned apart from the first contact arm and the second contact arm in a transverse direction extending perpendicularly to the plug-in and deflection directions. The third contact arm movable in the deflection direction and into the intermediate space.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: November 27, 2012
    Assignee: Tyco Electronics AMP GmbH
    Inventors: Mohamed Aboulkassem, Bert Bergner, Rudolf Kraemer, Luis Javier Puras Trueba, Thomas Scharf, Christian Schrettlinger
  • Publication number: 20110195617
    Abstract: The invention relates to an electrical contact arrangement for high pulsed currents and for connection with a polygonal socket. The electrical contact arrangement includes first contact, arm, a second contact arm, an intermediate space provided between the first and second contact arms, and a third contact arm. The second contact arm positioned apart from the first contact arm in a deflection direction extending perpendicularly to the plug-in direction. The first contact arm and second contact arm extend substantially in a plug-in direction, and one of the first contact arm or second contact arm resiliently deflectable relative to the other contact arm in the deflection direction. The third contact arm extends in the plug-in direction and is positioned apart from the first contact arm and the second contact arm in a transverse direction extending perpendicularly to the plug-in and deflection directions. The third contact arm movable in the deflection direction and into the intermediate space.
    Type: Application
    Filed: April 15, 2011
    Publication date: August 11, 2011
    Inventors: Mohamed Aboulkassem, Bert Bergner, Rudolf Kraemer, Luis Javier Puras Trueba, Thomas Scharf, Christian Schrettlinger
  • Patent number: 7985792
    Abstract: A dispersion containing a high-surface-area, pyrogenically-produced aluminium oxide with a surface area and BET of more than 115 m2/g and a Sears number of more than 8 ml/2 g, is produced by mixing a high-surface-area, pyrogenically-produced aluminium oxide having a BET specific surface area of more than 115 m2/g and a Sears number of more than 8 ml/2 g, with water, setting a pH value of 2 to 11 (preferably 3 to 8) and dispersing the mixture by the introduction of controlled shearing forces. It can be used for the production of Inkjet media, digital imaging products and other printing medium.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 26, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Heinz Lach, Gerrit Schneider, Thomas Scharfe
  • Patent number: 7921164
    Abstract: Method and apparatus for stopping output of a correspondence are provided. A correspondence is created and it is determined whether an automatic flag is defined in the user settings for the correspondence and if the automatic flag is set. If it is determined that the automatic flag is not defined in the user settings, it is determined whether an automatic flag is defined in customizing for the correspondence. If the automatic flag is not set in the user settings or the automatic flag is not defined in the customizing, the correspondence is stored in a storage area and output is initiated. The correspondence is then rendered.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: April 5, 2011
    Assignee: SAP AG
    Inventors: Holger Bohle, Simone Buchwald, Thomas Scharf
  • Publication number: 20100092762
    Abstract: A dispersion containing a high-surface-area, pyrogenically-produced aluminium oxide with a surface area and BET of more than 115 m2/g and a Sears number of more than 8 ml/2 g, is produced by mixing a high-surface-area, pyrogenically-produced aluminium oxide having a BET specific surface area of more than 115 m2/g and a Sears number of more than 8 ml/2 g, with water, setting a pH value of 2 to 11 (preferably 3 to 8) and dispersing the mixture by the introduction of controlled shearing forces. It can be used for the production of Inkjet media, digital imaging products and other printing medium.
    Type: Application
    Filed: July 10, 2009
    Publication date: April 15, 2010
    Inventors: Heinz Lach, Gerrit Schneider, Thomas Scharfe
  • Publication number: 20100034726
    Abstract: Process for producing activated carbon having a high catalytic activity, in which a carbonaceous material is brought into contact with nitrogen compounds, wherein the carbonaceous material is partially gasified with a mixture of steam, nitrogen and CO2 at temperatures above 800° C. in a manner known per se in a multistage fluidised bed and wherein a nitrogen compound is added into the furnace and/or at least one stage of the multistage fluidised bed.
    Type: Application
    Filed: September 13, 2007
    Publication date: February 11, 2010
    Applicant: CARBOTECH AC GMBH
    Inventors: Klaus-Dirk Henning, Wolfgang Bongartz, Nicolai Daheim, Thomas Scharf
  • Patent number: 7572854
    Abstract: Aqueous dispersions of a pyrogenically-produced aluminum oxide are prepared form a mixture containing water, additives and a high-surface-area pyrogenically-produced aluminum oxide with a BET specific surface area of more than 115 m2/g and a Sears number of more than 8 ml/2 g using controlled high shearing conditions. Prior to subjecting the mixture to high shear conditions, the pH of the mixture is adjusted to a value between of 2 to 11 (preferably 3 to 8). The aqueous dispersion has a mean particle size distribution of d50<150 nm. These dispersions are useful in the production of Inkjet media, digital imaging products and other printing media and result in high color densities, photo-realistic reproductions and particularly good print and gloss quality.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 11, 2009
    Assignee: Degussa AG
    Inventors: Gerrit Schneider, Heinz Lach, Thomas Scharfe
  • Patent number: 7241336
    Abstract: Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. AI2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis or preferably flame hydrolysis by a joint combustion of the gaseous raw substances. They can be used to produce coating colors, especially for inkjet papers or inkjet foils or other inkjet materials.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: July 10, 2007
    Assignee: Degussa GmbH
    Inventors: Thomas Scharfe, Ronald Apel, Alfons Moster, Helmut Mangold, Ralph Brandes
  • Publication number: 20070100945
    Abstract: Method and apparatus for stopping output of a correspondence are provided. A correspondence is created and it is determined whether an automatic flag is defined in the user settings for the correspondence and if the automatic flag is set. If it is determined that the automatic flag is not defined in the user settings, it is determined whether an automatic flag is defined in customizing for the correspondence. If the automatic flag is not set in the user settings or the automatic flag is not defined in the customizing, the correspondence is stored in a storage area and output is initiated. The correspondence is then rendered.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventors: Holger Bohle, Simone Buchwald, Thomas Scharf
  • Publication number: 20060163533
    Abstract: Stable, aqueous dispersion containing powders A and B,—wherein powder A is an amorphous silicon dioxide powder having an average particle diameter of 0.05 to 0.7 ?m and a BET surface aa of 5 to 50 m2/g, and—wherein powder B is a metal oxide or non-metal oxide powder consisting of aggregates of intergrown primary particles and displays a primary particle size of 5 to 50 nm and a BET surface area of 50 to 400 m2/g. Coating slip to form an ink-absorptive coating using the dispersion and at least one hydrophilic binder. Absorptive medium using the coating slip and a support.
    Type: Application
    Filed: November 18, 2003
    Publication date: July 27, 2006
    Inventors: Christoph Batz-Sohn, Thomas Scharfe, Wolfgang Lortz
  • Patent number: 7015270
    Abstract: A stable, aqueous dispersion, which includes: silicon dioxide mixed-oxide particles dispersed in at least one water-soluble cationic polymer having a mass average molar mass of less than 100,000 g/mol, said mixed-oxide including aluminum oxide or titanium dioxide, wherein said particles are produced by flame hydrolysis, wherein said particles have a BET specific surface area of 5 to 600 m2/g and a negative zeta potential, and wherein the dispersion has a positive zeta potential.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: March 21, 2006
    Assignee: Degussa AG
    Inventors: Thomas Scharfe, Christoph Batz-Sohn, Wolfgang Lortz
  • Patent number: 6808769
    Abstract: The present invention provides an aqueous dispersion containing at least two powder types selected from one or more metal oxide powders and/or one or more non-metal oxide powder. The present invention also provides a coating composition containing this dispersion, an inkjet recording medium containing the coating composition, and methods of making the same.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: October 26, 2004
    Assignee: Degussa AG
    Inventors: Christoph Batz-Sohn, Thomas Scharfe, Wolfgang Lortz
  • Patent number: 6695907
    Abstract: Dispersions of pyrogenic oxides, doped using an aerosol, are prepared by mixing the oxide with a suspending agent and milling. The dispersions can be used to prepare inkjet paper.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: February 24, 2004
    Assignee: Degussa AG
    Inventors: Thomas Scharfe, Rainer Golchert, Helmut Mangold
  • Publication number: 20040034144
    Abstract: A stable, aqueous dispersion, which includes:
    Type: Application
    Filed: January 27, 2003
    Publication date: February 19, 2004
    Applicant: Degussa AG
    Inventors: Thomas Scharfe, Christoph Batz-Sohn, Wolfgang Lortz
  • Publication number: 20040025746
    Abstract: The present invention provides an aqueous dispersion containing at least two powder types selected from one or more metal oxide powders and/or one or more non-metal oxide powder. The present invention also provides a coating composition containing this dispersion, an inkjet recording medium containing the coating composition, and methods of making the same.
    Type: Application
    Filed: March 24, 2003
    Publication date: February 12, 2004
    Applicant: DEGUSSA AG
    Inventors: Christoph Batz-Sohn, Thomas Scharfe, Wolfgang Lortz
  • Patent number: 6680109
    Abstract: Pyrogenically produced aluminum oxide, in which the BET specific surface area is greater than 115 m2/g and the Sears index is over 8 ml/2 g and the dibutyl phthalate absorption as a powder measured with a 16 g weighed portion is not measurable, is produced by means of flame oxidation or preferably flame hydrolysis, whereby a vaporizable aluminum compound is used as starting material. The aluminum oxide can be used as an ink-absorbing substance in inkjet media and also as a filler, as a substrate, as a catalytically active substance, as a starting material for the production of dispersions, as a polishing material (CMP applications), as a ceramic raw material, in the electronics industry, in the cosmetics industry, as an additive in the silicone and rubber industry, to adjust the rheology of liquid systems, as a heat stabilizer, in the paint industry.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: January 20, 2004
    Assignee: Degussa AG
    Inventors: Peer Plambeck-Fischer, Volker Hamm, Thomas Scharfe, Helmut Mangold, Thomas Hennig
  • Publication number: 20030124321
    Abstract: A dispersion containing a high-surface-area, pyrogenically-produced aluminium oxide with a surface area and BET of more than 115 m2/g and a Sears number of more than 8 ml/2 g, is produced by mixing a high-surface-area, pyrogenically-produced aluminium oxide having a BET specific surface area of more than 115 m2/g and a Sears number of more than 8 ml/2 g, with water, setting a pH value of 2 to 11 (preferably 3 to 8) and dispersing the mixture by the introduction of controlled shearing forces.
    Type: Application
    Filed: October 22, 2002
    Publication date: July 3, 2003
    Inventors: Gerrit Schneider, Heinz Lach, Thomas Scharfe
  • Publication number: 20030118499
    Abstract: Dispersions of pyrogenic oxides, doped using an aerosol, are prepared by mixing the oxide with a suspending agent and milling. The dispersions can be used to prepare inkjet paper.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 26, 2003
    Applicant: Degussa AG
    Inventors: Thomas Scharfe, Rainer Golchert, Helmut Mangold