Patents by Inventor Herbert Ammann

Herbert Ammann 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 for welding a top part and an associated bottom part
    Patent number: 3934788
    Abstract: In order to weld a cup-shaped member to a ring, claws are secured to the exterior surfaces of each part. In addition, a resilient member such as a ductile aluminum plate is placed between each pair of claws. The parts are spaced apart to form a gap in which a welding seam can be made. During cooling, the welding seam shrinks. This causes the aluminum plates between the claws to plastically deform. Thereafter, the claws and plates can be removed and the finished welding carried out.
    Type: Grant
    Filed: January 17, 1974
    Date of Patent: January 27, 1976
    Assignee: Sulzer Brothers Limited
    Inventor: Herbert Ammann