Patents by Inventor Walter Rasch

Walter Rasch 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 of producing cylinder heads, and cylinder heads produced thereby
    Patent number: 4337736
    Abstract: A cylinder head produced having partially reinforced cylinder heads, particularly of internal combustion engines, providing a preformed workpiece of a predetermined material composition, and casting on said workpiece a material capable of producing a bond with said predetermined material composition for forming a positive connection between said workpiece and said casting material, including a cast portion; and a preformed workpiece positively connected to said cast portion for reinforcing those parts of said cast portion which are highly stressed during use.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: July 6, 1982
    Assignee: M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
    Inventors: Walter Rasch, Karl-Heinz Caspers, Klaus Wiebicke, Max Albert
  • Method of producing cylinder heads, and cylinder head produced thereby
    Patent number: 4284041
    Abstract: A method of producing partially reinforced cylinder heads, including casting a material on a preformed workpiece with special material properties, whereby the casting material produces a mechanical and/or metallic bond with the preformed workpiece in the transition phase of the two materials, and cylinder head made according to this process.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: August 18, 1981
    Assignee: Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
    Inventors: Walter Rasch, Karl-Heinz Caspers, Klaus Wiebecke, Max Albert
  • Cylinder head for internal combustion engines
    Patent number: 4011852
    Abstract: A cylinder head for internal combustion engines in which at least two adjacent passages for inlet and/or outlet valves are provided with seating rings. The outer peripheral surface of each seating ring which surface faces toward the adjacent seating ring is provided with a flattened area directly engaging a corresponding flattened area of the adjacent seating ring faced thereby.
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: March 15, 1977
    Assignee: Maschinenfabrik Augsburg-Nurnberg AG
    Inventor: Walter Rasch