Patents by Inventor Sven-Olof Malmsten

Sven-Olof Malmsten 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).

  • Exhaust silencer
    Patent number: 5162622
    Abstract: An exhaust silencer has an inner, flexible pipe having a plurality of connected overlapping annular sections, an outer casing and a noise-suppressing material between the pipe and the outer casing. The casing has a first strip wound helically in a first direction of winding with partial overlap in a first overlap region between adjacent portions of the strips. A curable adhesive is arranged between the adjacent portions in the overlap region to provide a substantially leak proof seal.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: November 10, 1992
    Assignee: Dorchester Enterprises Ltd.
    Inventor: Sven-Olof Malmsten