Patents by Inventor Alfward Fawer

Alfward Fawer 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).

  • Inert gas for the arc welding of aluminum
    Patent number: 5609783
    Abstract: In arc welding of aluminum using an inert gas, 80 to 250 ppm of N.sub.2 O is added to the inert gas to improve the welding process and the welding result.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: March 11, 1997
    Assignee: Messer Griesheim GmbH
    Inventor: Alfward Fawer
  • Inert gas for the arc welding of aluminum
    Patent number: 5558791
    Abstract: In arc welding of aluminum using an inert gas, such as argon or a mixture of argon and helium, 80 to 250 ppm of a mixture of N.sub.2 and N.sub.2 O is added to the inert gas to improve the welding process and the welding result.
    Type: Grant
    Filed: June 8, 1995
    Date of Patent: September 24, 1996
    Assignee: Messer Griesheim
    Inventor: Alfward Fawer