Patents by Inventor Bendt Persson

Bendt Persson 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).

  • Means for splicing two pipes
    Patent number: 4641775
    Abstract: Explosion welding is used for splicing thick pipes (1 and 2) or the transport of oil and gas. A plating ring (4) and its explosive (7) are located inside the pipes, and a support (12 and 13) surrounding the two pipes (1 and 2) in order to limit the deformation occurring in the pipes (1 and 2) during the actual welding process. Since the pipes (1 and 2) are deformed, the support (12 and 13) will also be deformed. To enable repeated used of the support (12 and 13), the section (20) thereof which is subjected to the deformation is replaced by an elastomeric material.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: February 10, 1987
    Assignees: Nitro Nobel AB, AB Volvo
    Inventors: Goran Lande, Bendt Persson