Patents by Inventor Kurt Ewald

Kurt Ewald 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: 8691358
    Abstract: Component (1) having at least one element (2) having a curved surface (3), wherein the element (2) is provided with a coded, electronically readable identification (4), which is introduced into the surface as a topographic identification (4), wherein the identification (4) is embodied in such a way that it can be read in two dimensions by means of a reader.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: April 8, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Peter Kritzer, Kurt Ewald, Christian Geubert, Thorsten Wieland, Jan Helms
  • Patent number: 8351052
    Abstract: A method for reading a topographic structure applied to a component includes providing the component with the topographic structure, applying an agent configured to enhance a contrast of the structure to at least a region of the component where the structure is located and reading the topographic structure after the applying the agent.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: January 8, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Peter Kritzer, Christian Bickel, Kurt Ewald, Christian Geubert
  • Publication number: 20110059297
    Abstract: Component (1) having at least one element (2) having a curved surface (3), wherein the element (2) is provided with a coded, electronically readable identification (4), which is introduced into the surface as a topographic identification (4), wherein the identification (4) is embodied in such a way that it can be read in two dimensions by means of a reader.
    Type: Application
    Filed: November 12, 2010
    Publication date: March 10, 2011
    Applicant: CARL FREUDENBERG KG
    Inventors: Peter Kritzer, Kurt Ewald, Christian Geubert, Thorsten Wieland, Jan Helms
  • Publication number: 20110043824
    Abstract: A method for reading a topographic structure applied to a component includes providing the component with the topographic structure, applying an agent configured to enhance a contrast of the structure to at least a region of the component where the structure is located and reading the topographic structure after the applying the agent.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 24, 2011
    Applicant: CARL FREUDENBERG KG
    Inventors: Peter Kritzer, Christian Bickel, Kurt Ewald, Christian Geubert
  • Publication number: 20100330349
    Abstract: A component includes at least one element made of a sealing material, wherein a topographic marking is incorporated into the at least one element,
    Type: Application
    Filed: February 27, 2009
    Publication date: December 30, 2010
    Applicant: CARL FREUDENBERG KG
    Inventors: Kurt Ewald, Christian Geubert, Jan Helms, Peter Kritzer, Thorsten Wieland
  • Patent number: 6390137
    Abstract: This invention relates to a co-tube assembly for a heating and air conditioning system. The co-tube assembly comprises a connector an inner tube and an outer tube. The connector including a first opening, a second opening and a third opening. The inner tube extends through the first opening and the second opening of the connector. The inner tube has a first portion axially outwardly of the first opening of the connector and a second portion axially outwardly of the second opening of the connector. The outer tube is disposed over the first portion of said inner tube and inserted into said first opening of the connector.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: May 21, 2002
    Assignee: TI Group Automotive Systems, LLC
    Inventors: Kurt Ewald, Charles Thrift, John Horst
  • Patent number: 5984312
    Abstract: A sealing device comprises a slide ring and a counterring having sealing surfaces, the slide ring and counterring contacting one another under axial prestressing in a sealing manner and capable of rotating relative to one another, the counterring and a substantially L-shaped engaging ring being interconnected, the engaging ring being affixed to a shaft to be sealed, and the counterring and the engaging ring being sealed relatively to each other by a sealing ring. The counterring contacts a radial segment of the engaging ring and surrounds an axial segment with radial clearance, and the sealing ring is sealingly arranged, under elastic prestressing, in the gap formed by the clearance. The counterring has an inner peripheral surface which forms an angle .alpha. of about 0.5.degree. to about 60.degree. with an axis of rotation, and the radial clearance in which the sealing ring is arranged is greater on the side facing the radial segment of the engaging ring than on the side facing the slide ring.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 16, 1999
    Assignee: Firma Carl Freudenberg
    Inventors: Armin Hintenlang, Klaus Schafer, Reinhold Kraus, Kurt Ewald, Andreas Jaekel, Rolf Weis, Erwin Schafer, Bernd Stichler
  • Patent number: 5964466
    Abstract: A sealing device comprises a slide ring having a sliding surface and a counterring affixed to a shaft, the sliding surface of the slide ring sealingly contacting the counterring and capable of rotating relative to the counterring, the slide ring, on a side facing away from the sliding surface, being sealed relative to a retaining ring by a sealing element of elastomeric material, the retaining ring being biased by a compression spring away from a housing which has an essentially C-shaped cross-section open in the direction of the slide ring. The sealing element is constructed as a ring-shaped bellows and has an essentially N-shaped cross-section with a first radial segment and a second radial segment which are connected by an axial segment. The first radial segment sealingly contacts an end face of the slide ring facing away from the sliding surface, and the second radial segment sealingly contacts an inner segment of the housing.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: October 12, 1999
    Assignee: Firma Carl Freudenberg
    Inventors: Armin Hintenlang, Klaus Schafer, Reinhold Kraus, Kurt Ewald, Andreas Jaekel, Rolf Weis, Erwin Schafer, Bernd Stichler