Patents by Inventor Rolf E. A. Tornkvist

Rolf E. A. Tornkvist 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: 4258270
    Abstract: A marine wave power plant includes interconnected, swingable, floating basic units with anchoring means. Each unit consists of bearing displacement tubes, a stationary member and a displacement body movably joined thereto and moving with the waves. The wave movements are converted to electrical energy via a hydraulic-electrical system. The rear surface of the movable member is curved with its center of curvature at the journalling axis on the stationary member to avoid pumping between the two members, while a journalling arm is length-adjustable for different wave characteristics. To control the various parameters dependent on incoming waves, a sensor measures the water level in front of the displacement body. The movements of this body, the radian volume of the hydraulic motor and the electrical power output is controlled via a process computer.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: March 24, 1981
    Assignee: Salen Energy AB
    Inventor: Rolf E. A. Tornkvist
  • Patent number: 4036563
    Abstract: A wave energy transformer for transformation of wave energy into pressure energy of water in a pipe system. The transformer consists of a submerged space network of chambers at least partially closed by walls pivoted to adjacent walls. The walls are deformable due to the action of the waves. At least two of said deformable walls in each chamber are connected to at least one pumping means for pumping water into said pipe system owing to the deformation of said walls.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: July 19, 1977
    Inventor: Rolf E. A. Tornkvist