Patents by Inventor Peter Wienhold

Peter Wienhold 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: 4950543
    Abstract: The process for making a structural element subjected to a high thermal stress and made of a material of high thermal conductivity such as molybdenum, tungsten, copper, aluminum or an alloy of these metals with a protective layer protecting the surface of the structural element comprises treating the surface of the structural element to remove surface impurities present and then coating the surface with an amorphous hydrogen containing carbon layer. For reduction, i.e. removal, of the surface impurities the structural element can advantageously be exposed to a hydrogen flow containing hydrogen atoms and/or ions at a temperature of from C. to C. at a pressure of from 10.sup.-2 to 10.sup.2 Pa. The hydrogen atoms and/or the hydrogen ions coming in contact with the surface of the structural element are formed by contact dissociation at at least one hot surface or by glow discharge or by electron cyclotron resonance and the volatile products are pumped away.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: August 21, 1990
    Assignee: Kernforschungsanlage Julich GmbH
    Inventors: Jorg Winter, Hans-Gunter Esser, Francois Waelbroeck, Peter Wienhold
  • Patent number: 4944777
    Abstract: In separating hydrogen from a mixture of gases by diffusion through a non-porous membrane which is selectively permeable to hydrogen, the hydrogen being at least partially dissociated prior to being contacted with the membrane, the membrane is made up of at least two layers of different materials. The layer on the upstream side of the membrane is less dissolving to hydrogen and has a lower release rate constant at C. than the layer on the downstream side. The membrane may consist of an iron diaphragm with a thin coating of copper on the upstream side.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: July 31, 1990
    Inventors: Walter T. Shmayda, Francois Waelbroeck, Peter Wienhold, Joerg Winter
  • Patent number: 4634454
    Abstract: A method and apparatus for separation of an isotope mixture of hydrogen, sting predominantly in molecular form and/or inbound form, from the remaining components of a gas. A first chamber is separated from a second chamber by a wall which is permeable for atomic hydrogen and less permeable for molecular hydrogen. The hydrogen is converted into atomic hydrogen or, if necessary, is separated in atomic form from the material with which the hydrogen has gone into chemical composition. A device electrically operable independently of the wall is provided for converting the molecular and/or bound hydrogen to form atomic hydrogen in apparatus for this purpose. A heating device for elevating the temperature of thread, wire, or body of other form capable of being heated above 1500 K is provided and such thread, wire, or body is made of high-melting material, such as tungsten, iridium, osmium, or rhenium.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: January 6, 1987
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Imran A. Khan, Karl-Jurgen Dietz, Francoise Waelbroeck, Peter Wienhold
  • Patent number: 4494965
    Abstract: An apparatus utilized for separating hydrogen isotopes from a gas mixture separate isotopes contained in a hydrogen isotope mixture. The apparatus is provided with two chambers closable by valves and surrounded on all sides by walls and separated from each other by a wall or partition of material differing from palladium though permeable preferably for atomic hydrogen and permeable only to a lesser extent for molecular hydrogen. One of the chambers is connected with a gas supply line as well as a gas discharge line, and the other chamber, provided for collecting isotope mixture coming through the permeable wall, is capable of being evacuated. The remaining walls of the chambers consist of material which is not or is only poorly permeable for hydrogen isotopes.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 22, 1985
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Imran Ali-Khan, Karl-Jurgen Dietz, Francois Waelbroeck, Peter Wienhold