Patents by Inventor Philippe Barthe

Philippe Barthe 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: 11965506
    Abstract: A scroll compressor includes a compressor housing, a high-pressure chamber, a low-pressure chamber, an oil return channel having an oil return throttle arranged therein, a driven eccentric unit, a fixed scroll, an orbiting displacement scroll arranged on the driven eccentric unit which interacts with the fixed scroll, a sliding disk arranged between the orbiting displacement scroll and the compressor housing, a back-pressure chamber arranged adjacent to the orbiting displacement scroll, and a gas connecting channel having a gas connecting throttle arranged therein. The oil return channel fluidically connects the high-pressure chamber with the low-pressure chamber. The gas connecting channel fluidically connects the back-pressure chamber with the high-pressure chamber. The oil return channel and/or the gas connecting channel extends through the sliding disk. The sliding disk includes the oil return throttle and/or the gas connecting throttle.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: April 23, 2024
    Assignee: PIERBURG GMBH
    Inventors: Lukas Loehmer, Philipp Barth, Jan Berwanger
  • Publication number: 20230349379
    Abstract: A scroll compressor includes a compressor housing, a high-pressure chamber, a low-pressure chamber, an oil return channel having an oil return throttle arranged therein, a driven eccentric unit, a fixed scroll, an orbiting displacement scroll arranged on the driven eccentric unit which interacts with the fixed scroll, a sliding disk arranged between the orbiting displacement scroll and the compressor housing, a back-pressure chamber arranged adjacent to the orbiting displacement scroll, and a gas connecting channel having a gas connecting throttle arranged therein. The oil return channel fluidically connects the high-pressure chamber with the low-pressure chamber. The gas connecting channel fluidically connects the back-pressure chamber with the high-pressure chamber. The oil return channel and/or the gas connecting channel extends through the sliding disk. The sliding disk includes the oil return throttle and/or the gas connecting throttle.
    Type: Application
    Filed: January 9, 2020
    Publication date: November 2, 2023
    Applicant: PIERBURG GMBH
    Inventors: LUKAS LOEHMER, PHILIPP BARTH, JAN BERWANGER
  • Patent number: 7659008
    Abstract: The invention relates to a lubricating metal coating and to a process for its preparation. The material constituting the coating in a composite material comprising a metal matrix within which talc particles are distributed as lamellae, the metal matrix being composed of a metal chosen from Fe, Co, Ni, Mn, Cr, Cu, W, Mo, Zn, Au, Ag, Pb or Sn or of an alloy of these metals or of a metal/semimetal alloy. The coating is obtained by a process consisting in carrying out an electrolytic deposition using a solution of precursors of the metal matrix of the coating which additionally comprises talc particles in suspension, which particles are modified at the surface by irreversible adsorption of a cellulose-derived compound by replacement of all or part of the hydroxyl groups.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: February 9, 2010
    Assignee: Centre National de la Recherche Scientifique
    Inventors: François Martin, Jean-Pierre Bonino, Patrice Bacchin, Stéphane Vaillant, Eric Ferrage, William Vautrin, Philippe Barthes
  • Publication number: 20060162655
    Abstract: The invention relates to a lubricating metal coating and to a process for its preparation. The material constituting the coating in a composite material comprising a metal matrix within which talc particles are distributed as lamellae, the metal matrix being composed of a metal chosen from Fe, Co, Ni, Mn, Cr, Cu, W, Mo, Zn, Au, Ag, Pb or Sn or of an alloy of these metals or of a metal/semimetal alloy. The coating is obtained by a process consisting in carrying out an electrolytic deposition using a solution of precursors of the metal matrix of the coating which additionally comprises talc particles in suspension, which particles are modified at the surface by irreversible adsorption of a cellulose-derived compound by replacement of all or part of the hydroxyl groups.
    Type: Application
    Filed: December 8, 2003
    Publication date: July 27, 2006
    Applicant: CENTRE NATIONAL DE LA RECHERCHE
    Inventors: Francois Martin, Jean-Pierre Bonino, Patrice Bacchin, Stephane Vaillant, Eric Ferrage, William Vautrin, Philippe Barthes
  • Patent number: 6548032
    Abstract: The invention relates to a process for the treatment of gases with high oxygen content, with a view to controlling nitrogen oxide emissions, characterized in that use is made of a catalytic composition comprising manganese oxide and at least one oxide chosen from cerium oxide and zirconium oxide. This composition may furthermore comprise at least one other element chosen from those in groups VIII, IB, IVB and VB. The process of the invention applies in particular to the treatment of exhaust gases of internal-combustion engines, more particularly diesel engines or lean-burn engines.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: April 15, 2003
    Assignee: Rhodia Chimie
    Inventors: Philippe Barthe, Catherine Hedouin, Thierry Seguelong
  • Patent number: 6143903
    Abstract: The invention relates to a process for the production of enantiomerically-pure AzeOH which comprises selective crystallisation of a diastereomerically-pure AzeOH-tartrate salt from a homogeneous solution of AzeOH, optically-active tartaric acid, an organic acid and an aldehyde, followed by liberation of the free amino acid.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: November 7, 2000
    Assignee: Astra Aktiebolag
    Inventors: Philipp Barth, Armin Pfenninger
  • Patent number: 5942630
    Abstract: The invention relates to a process for the production of enantiomerically-pure AzeOH which comprises selective crystallisation of a diastereomerically-pure tartrate salt thereof, followed by liberation of the free amino acid, as well as the compounds L-azetidine-2-carboxylic acid-D-tartrate and D-azetidine-2-carboxylic acid-L-tartrate.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: August 24, 1999
    Assignee: Astra AB
    Inventors: Philipp Barth, Hugo Fritschi, Jan-Erik Nystrom, Armin Pfenninger
  • Patent number: 5876681
    Abstract: Oxygen-rich exhaust gases, for example those emanating from internal combustion engines, e.g., diesel engines, are catalytically treated/converted to reduce emissions of NO.sub.x, in the presence of a catalytically effective amount of a spinel mass oxide essentially having the formula ZnAl.sub.2 O.sub.4 which was prepared by forming a solution or suspension of the salts of the constituent elements of the mass oxide, drying by atomizing the solution or suspension and calcining the salts of the constituent elements of the mass oxide so as to result in the spinel mass oxide.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: March 2, 1999
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Barthe, Pierre Macaudiere, Thierry Seguelong
  • Patent number: 5813223
    Abstract: The object of the invention is a filtration and combustion process for carbon particulate matter from an internal combustion engine. The process is characterized by the following steps: a rare earth or rare earth mixture derivative is introduced into the fuel at a concentration of 10 ppm to 500 ppm (by weight), and preferably of 20 ppm to 200 ppm; the soot produced by the internal combustion engine is collected on a filter, the temperature of the gases entering the filter being selected in the range of 100.degree. C. to 350.degree. C.; the soot is allowed to build up until a significant fraction or rate of incoming soot is balanced by the combustion of soot in the soot cake on the filter, and no is effected as long as the head loss caused by the soot does not exceed a preselected value and is not higher than 400 millibars. This invention is useful for organic synthesis.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: September 29, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Barthe, Jacques Lemaire, Dennis Petta
  • Patent number: 5736114
    Abstract: Oxygen-rich exhaust gases, for example those emanating from internal combustion engines, e.g., diesel engines, are catalytically treated/converted to reduce emissions of NO.sub.x, in the presence of a catalytically effective amount of either (a) a spinel mass oxide essentially having the formula ZnAl.sub.2 O.sub.4, or (b) a normal or inverse spinel oxide other than ZnAl.sub.2 O.sub.4, for example ZnGa.sub.2 O.sub.4, SnZnGa.sub.2 O.sub.4 or MgAl.sub.2 O.sub.4.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: April 7, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Barthe, Pierre Macaudiere, Thierry Seguelong