Patents by Inventor Johannes Arnold

Johannes Arnold 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).

  • Publication number: 20090056913
    Abstract: The invention relates to a heat exchanger comprising at least one pipe (1) and at least one lamella (2), for exchanging heat between a first coolant that flows through the pipe (1) and a second coolant that wets the heat exchanger under the influence of centrifugal forces in order to be cooled and to be available to further cool a rotating machine element (3) that is situated in a housing (4), where the heat exchanger is of approximately ring-shaped design, essentially surrounds the rotating machine element (3) and is integrated into the housing (4).
    Type: Application
    Filed: August 20, 2008
    Publication date: March 5, 2009
    Applicants: LuK Lamellen und Kupplungsbau Beteiligungs KG, Modine Manufacturing Company
    Inventors: Viktor Brost, Rainer Kaesinger, Ivo Agner, Oliver Noehl, Johannes Arnold
  • Patent number: 7461732
    Abstract: A liquid-cooled friction clutch contains at least one lamella, which is connected rotationally fixed to a driveshaft, at least one lamella, which is connected rotationally fixed to an output shaft, these lamellae being able to be pressed mutually against one another and being positioned inside a clutch housing connected rotationally fixed to the driveshaft, and a coolant liquid return line, which leads from an area radially outside the lamellae to an area radially inside the lamellae and returns coolant liquid after its radial flow along the lamellae from the radial external area into the radial internal area, an end area of the return line being implemented as a scoop tube having an intake opening which is immersed radially outside the lamellae in a coolant liquid ring rotating together with the clutch housing and returns the coolant liquid into the area radially inside the lamellae without flowing through a pump driven by external force.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: December 9, 2008
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Johannes Arnold, Wolfgang Reik, Ivo Agner, Oliver Noehl
  • Publication number: 20070065707
    Abstract: In order to provide a method of producing an electrically insulating sealing arrangement for a fuel cell stack which comprises a plurality of fuel cell units that succeed one another along a stack direction by means of which the housings of the fuel cell units are connectable to one another in such a way that an adequate electrically insulating effect and adequate mechanical rigidity are ensured even at the high operating temperature, it is proposed that the method comprise the following process steps: producing a ceramic metal layer from a mixture of a ceramic material and a metal material and/or a metal precursor; and at least partially converting the metal of the ceramic metal layer into an electrically non conductive metal compound so as to produce a non conductive boundary layer.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 22, 2007
    Inventors: Hans-Rainer Zerfass, Rudolf Henne, Johannes Arnold
  • Publication number: 20070003811
    Abstract: In order to provide a sealing arrangement for a fuel cell stack, which comprises a plurality of fuel cell units, which are arranged consecutively in a stacking direction, wherein the sealing arrangement has an electrical insulation effect, and which also has an adequate electrical insulation effect and an adequate mechanical strength at a high operating temperature of the fuel cell stack, it is proposed that the sealing arrangement comprises at least one ceramic-metal layer formed from a mixture of a ceramic material and a metal material.
    Type: Application
    Filed: June 19, 2006
    Publication date: January 4, 2007
    Inventors: Hans-Rainer Zerfass, Rudolf Henne, Johannes Arnold
  • Publication number: 20060207855
    Abstract: A liquid-cooled friction clutch contains at least one lamella, which is connected rotationally fixed to a driveshaft, at least one lamella, which is connected rotationally fixed to an output shaft, these lamellae being able to be pressed mutually against one another and being positioned inside a clutch housing connected rotationally fixed to the driveshaft, and a coolant liquid return line, which leads from an area radially outside the lamellae to an area radially inside the lamellae and returns coolant liquid after its radial flow along the lamellae from the radial external area into the radial internal area, an end area of the return line being implemented as a scoop tube having an intake opening which is immersed radially outside the lamellae in a coolant liquid ring rotating together with the clutch housing and returns the coolant liquid into the area radially inside the lamellae without flowing through a pump driven by external force.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 21, 2006
    Applicant: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Johannes Arnold, Wolfgang Reik, Ivo Agner, Oliver Noehl
  • Patent number: 4108846
    Abstract: An improved solid phase peptide synthesis method is disclosed utilizing base labile N.alpha.-amino acid protecting groups. Such method provides a more efficient synthesis procedure in that it eliminates acid treatment thereby preventing loss of peptide from the support during each deprotection cycle and eliminates a substantial number of wash cycles in each step. A preferred base labile N.alpha.-amino protecting group is the 9-fluorenylmethyloxycarbonyl group (Fmoc) and a preferred base for deprotection is piperidine.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: August 22, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Johannes Arnold Meienhofer
  • Patent number: 4082221
    Abstract: A rotatable atomizer having a stationary supporting member and a rotatable disk with a shaft. The disk has an internal atomizing chamber with a plurality of substantially radially positioned discharge channels with a reduced cross-sectional outlet. Two labyrinth seals are provided between the supporting member and the disk as well as the shaft. Both seals have a steam supply.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: April 4, 1978
    Assignee: Stork Amsterdam B.V.
    Inventor: Johannes Arnold Julius Brummelhuis
  • Patent number: 3960828
    Abstract: The use of catalytic hydrogenolysis to selectively deblock protected moieties in sulfur containing compounds has not been a practical process due to poisoning of the catalyst by the sulfur compound. It has now been found that catalytic hydrogenolysis of sulfur compounds can be successfully carried out by conducting the reaction in liquid ammonia as solvent.
    Type: Grant
    Filed: March 20, 1974
    Date of Patent: June 1, 1976
    Assignee: The United States of America as represented by the Department of Health, Education and Welfare
    Inventor: Johannes Arnold Meienhofer