Patents by Inventor Arnulf Spieth

Arnulf Spieth 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: 20100155169
    Abstract: A flanged joint (1) of an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided for fastening a tubular body (4) of the exhaust system to another component (5). The flanged joint includes a tube bell (2) formed at the end area of the tubular body (4) as well as a ring-shaped flange (3), which surrounds the tubular body (4) on a side of the tube bell (2) facing away from the other component (5) and which has a plurality of fastening sites (6, 7) for connection to the other component (5).
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Inventors: Robert HANITZSCH, Arnulf SPIETH
  • Patent number: 7650964
    Abstract: An arrangement of parts having a first part in the form of sheet metal which is in contact with the second part along an edge and is fixedly connected to the second part via at least one weld. To reduce stress peaks at the ends of welds, the first part has a slot in a section adjacent to the respective end of the weld, the slot beginning at the edge and extending to its end with a curved profile a curve bent by at least 180° up to its end.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: January 26, 2010
    Assignee: J. Eberspaecher GmbH & Co. KG
    Inventor: Arnulf Spieth
  • Patent number: 7617909
    Abstract: A connection between a plate and a pipe wherein the pipe passes through an opening in the plate, and wherein the plate has a spring-elastic tongue at the opening which is fixedly connected to the pipe.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: November 17, 2009
    Assignee: J. Eberspaecher GmbH & Co. KG
    Inventors: Thomas Wolf, Arnulf Spieth, Remus Boriga
  • Patent number: 7543682
    Abstract: The present invention relates to a sheet-metal-type part, in particular a muffler bottom having at least one through-opening for a tubular part. The sheet-metal-type part has at least one slot passing through the sheet-metal-type part in an area adjacent to the through-opening. The slot runs essentially in the circumferential direction or runs tangentially to the through-opening.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: June 9, 2009
    Assignee: J. Eberspaecher GmbH & Co. KG
    Inventors: Robert Hanitzsch, Thomas Werber, Arnulf Spieth
  • Patent number: 7444806
    Abstract: An exhaust-carrying component (2) of an exhaust system (1) for an internal combustion engine is provided, in particular for a motor vehicle. The component (2) includes a pipe (4) through which exhaust gas can flow from one longitudinal end (6) to the other longitudinal end (7) and which has between its longitudinal ends (6, 7) a longitudinal section (8), the wall (9) of which is provided with perforations (10). The component (2) also has a housing (5) which surrounds the pipe (4) in a circumferential direction and to which the pipe (4) is fixedly connected in both one end area (11) having a longitudinal end (6) and in another end area (12) having the other longitudinal end (7). In order for the component (2) to nevertheless be able to resist the thermal stresses that occur during operation, the perforations (10) are designed so that the longitudinal section (8) can absorb thermal longitudinal expansion forces between the pipe (4) and the housing (5) through elastic deformation.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: November 4, 2008
    Assignee: J. Eberspaecher GmbH & Co, KG
    Inventors: Thomas Werber, Arnulf Spieth
  • Publication number: 20080121460
    Abstract: The present invention relates to a sheet-metal-type part, in particular a muffler bottom having at least one through-opening for a tubular part. The sheet-metal-type part has at least one slot passing through the sheet-metal-type part in an area adjacent to the through-opening. The slot runs essentially in the circumferential direction or runs tangentially to the through-opening.
    Type: Application
    Filed: May 23, 2007
    Publication date: May 29, 2008
    Inventors: Robert Hanitzsch, Thomas Werber, Arnulf Spieth
  • Publication number: 20070241168
    Abstract: An arrangement of parts having a first part in the form of sheet metal which is in contact with the second part along an edge and is fixedly connected to the second part via at least one weld. To reduce stress peaks at the ends of welds, the first part has a slot in a section adjacent to the respective end of the weld, the slot beginning at the edge and extending to its end with a curved profile a curve bent by at least 180° up to its end.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 18, 2007
    Inventor: Arnulf Spieth
  • Publication number: 20070227812
    Abstract: A connection between a plate and a pipe wherein the pipe passes through an opening in the plate, and wherein the plate has a spring-elastic tongue at the opening which is fixedly connected to the pipe.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 4, 2007
    Inventors: Thomas Wolf, Arnulf Spieth, Remus Boriga
  • Publication number: 20070209354
    Abstract: An exhaust-carrying component (2) of an exhaust system (1) for an internal combustion engine is provided, in particular for a motor vehicle. The component (2) includes a pipe (4) through which exhaust gas can flow from one longitudinal end (6) to the other longitudinal end (7) and which has between its longitudinal ends (6, 7) a longitudinal section (8), the wall (9) of which is provided with perforations (10). The component (2) also has a housing (5) which surrounds the pipe (4) in a circumferential direction and to which the pipe (4) is fixedly connected in both one end area (11) having a longitudinal end (6) and in another end area (12) having the other longitudinal end (7). In order for the component (2) to nevertheless be able to resist the thermal stresses that occur during operation, the perforations (10) are designed so that the longitudinal section (8) can absorb thermal longitudinal expansion forces between the pipe (4) and the housing (5) through elastic deformation.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 13, 2007
    Inventors: Thomas WERBER, Arnulf SPIETH
  • Publication number: 20070107707
    Abstract: The invention relates to a crosstalk device for coupling of two exhaust lines of an exhaust system of an internal combustion engine through which exhaust can flow in parallel. The crosstalk device has a housing having two inlets and two outlets that are connected so they communicate through an interior space of the housing and by which the two exhaust lines can be connected to the crosstalk device. The crosstalk device has an inexpensive design and high stability because its housing is assembled from two half-shells whose parting plane extends across the main direction of flow of the crosstalk device.
    Type: Application
    Filed: November 14, 2006
    Publication date: May 17, 2007
    Inventors: Arnulf Spieth, Markus Tuech, Michael Krause