Patents by Inventor Hans-Joachim Kaschuba

Hans-Joachim Kaschuba 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).

  • Powder metallurgy produced valve body and valve fitted with said valve body
    Patent number: 6712872
    Abstract: The invention relates to a valve body produced by powder metallurgical methods that exhibits high thermal and wear resistance and has the following composition by weight: 0.5% to 2.0% C; 5.0% to 16% Mo; 0.2% to 1.0% P; 0.1% to 1.4% Mn; 0% to 5% Cr; 0% to 5% S; 0% to 7% W; 0% to 3% V, <2% of other elements with the remainder being Fe. It also relates to a valve fitted with such valve body.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: March 30, 2004
    Assignees: Bleistahl-Produktions GmbH, Volkswagen Aktiengesellschaft
    Inventors: Gerd Krüger, Hans-Joachim Kaschuba, Franz-Josef Schleifstein
  • Powder metallurgy produced valve body and valve fitted with said valve body
    Publication number: 20030136475
    Abstract: The invention relates to a valve body produced by powder metallurgical methods that exhibits high thermal and wear resistance and has the following composition by weight:
    Type: Application
    Filed: November 12, 2002
    Publication date: July 24, 2003
    Inventors: Gerd Kruger, Hans-Joachim Kaschuba, Franz-Josef Schleifstein