Patents by Inventor Wolfgang Sapia

Wolfgang Sapia 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 and apparatus for arc welding
    Publication number: 20060243704
    Abstract: A method and apparatus for protective gas welding using at least two consumable electrodes to which at least two different potentials are applied is disclosed. A common weld pool is formed by one leading electrode and at least one trailing electrode. When two electrodes are used, this method is also referred to as tandem welding. A larger electrode diameter is used for the leading electrode in comparison with the trailing electrode. Furthermore, a protective gas mixture consisting of 3 to 40 volume % carbon dioxide and/or oxygen and argon and optionally helium is used.
    Type: Application
    Filed: March 31, 2006
    Publication date: November 2, 2006
    Applicant: Linde Aktiengesellschaft
    Inventors: Christoph Matz, Ernst Miklos, Wolfgang Sapia