Patents by Inventor Michael Asberg

Michael Asberg 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).

  • Propeller drive unit
    Patent number: 5755605
    Abstract: A propeller drive installation in a boat has two propeller drive units (8, 9) which extend out through individual openings (4, 5) in the bottom (1) of a V-bottomed boat, so that the legs are inclined relative to each other. The leg of one drive unit can be set to turn the boat in one direction at the same time as the leg of the other drive unit can be set to turn the boat in the opposite direction, so that the horizontal counteracting forces acting on the legs cancel each other, while the vertical forces are added to each other to trim the running position of the boat in the water.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: May 26, 1998
    Assignee: AB Volvo Penta
    Inventor: Michael Asberg