Patents by Inventor Hans Baach

Hans Baach 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).

  • Submerged arc welding process
    Patent number: 4572936
    Abstract: In a submerged arc multiple wire welding system, only one or two of the welding wires used are over or microalloyed wires. The other wires are commercially available unalloyed or low-alloyed solid wires. The process produces a weld metal which has unexpectedly high toughness values, and can be performed more economically. This multiple wire welding system is used in single or multiple-pass welding operations.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: February 25, 1986
    Assignee: Schweissindustrie Oerlikon Buhrle AG
    Inventors: Erhard Scholz, Edmund Heimann, Hans Baach