Patents by Inventor Ralf Kulmann

Ralf Kulmann 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).

  • Method for producing a run-flat support body for run-flat vehicle wheels
    Patent number: 7313864
    Abstract: A run-flat support body for run-flat vehicle wheels. The support body is typically embodied as a shell-shaped, metallic annular body having an undulated supporting annular surface. A simple, effective method for producing one such annular body, according to which a rectangular blank which is cut out of a strip of sheet metal is bent along the longitudinal side to form a ring and the open ends of the ring are interconnected by a material connection. The annular blank thus produced is provided with the desired profile according to the pressure-rolling method, is provided with connecting elements, and cut open between the same.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: January 1, 2008
    Assignee: ISE Innomotive Systems Europe GmbH
    Inventors: Jakob E. Lowen, Meinolf Koch, Ralf Kulmann, Christian Reuber, Lutz Maiwald
  • Method for producing a run-flat support body for run-flat vehicle wheels
    Publication number: 20050028367
    Abstract: The invention relates to a run-flat support body for run-flat vehicle wheels. Said support body is typically embodied as a shell-shaped, metallic annular body (3) having an undulated supporting annular surface. The invention relates to a simple, effective method for producing one such annular body (3), according to which a rectangular blank (6) which is cut out of a strip of sheet metal is bent along the longitudinal side to form a ring and the open ends of the ring are interconnected by a material connection. The annular blank (7) thus produced is provided with the desired profile according to the pressure-rolling method, is provided with connecting elements (9), and cut open between the same.
    Type: Application
    Filed: September 10, 2002
    Publication date: February 10, 2005
    Inventors: Jakob Lowen, Meinolf Koch, Ralf Kulmann, Christian Reuber, Lutz Maiwald