Patents by Inventor Daniel Wenk

Daniel Wenk 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 generating welding pressure in a roller seam welding machine
    Patent number: 5951885
    Abstract: In a roller seam welding machine, the upper welding roller is led through a welding-force adjustment device with two spring elements. One spring is already effective when the initial deflection of the welding roller occurs. The other spring comes into operation only when a certain deflection (D) is reached. A marked improvement in weld quality can be obtained in this way, particularly at the start of the weld seam.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: September 14, 1999
    Assignee: Elpatronic AG
    Inventors: Nobuo Takahashi, Kiyoshi Kobayashi, Akira Takamatsu, Daniel Wenk