Patents by Inventor Bertil Schmidt

Bertil Schmidt 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).

  • Patent number: 4569617
    Abstract: The invention relates to a pile construction comprising a number of steel tube sections (1) that are joined together. Each tube section (1) is formed with joining portions (2, 4) in its respective ends. One joining portion is constituted by a male end (2) having a conical envelope surface (3) and the other portion by a socket end (4), the interior surface (5) of which is conical in correspondence to the conicity of the male end (2). When the tube sections (1) are joined the male end (2) of one section interacts with the socket end (4) of the next section, so that a stiff joint is obtained.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: February 11, 1986
    Assignee: Aktiebolaget Gustavsberg
    Inventors: Bertil Schmidt, Pentti Kosonen