Patents by Inventor Erik O. Jansson

Erik O. Jansson 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).

  • Stay ring for the spiral casing of a rotary hydraulic machine
    Patent number: 4269568
    Abstract: A stay vane ring for the spiral casing of a rotary hydraulic machine comprises two axially spaced-apart ring members disposed coaxially about the machine axis and a plurality of axially extending stay vanes connected between the ring members. Each ring member comprises a substantially cylindrical ring of metal plate and the axial ends of the stay vane plates are extended in axial direction on both sides of said cylindrical plate ring of the ring members at least substantially all the way out to the most distant circular edge of the cylindrical plate ring so that a cross-joint is formed between each stay vane plate and the cylindrical plate ring of each ring member. At each such cross-joint the stay vane plate and the cylindrical plate ring are welded to each other.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: May 26, 1981
    Assignee: Aktiebolaget Karlstads Mekaniska Werkstad
    Inventors: Erik O. Jansson, Bengt O. Naucler, Thomas Asberg