Patents by Inventor Reidar Vaardal

Reidar Vaardal 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).

  • Propulsion system for ships
    Patent number: 8299638
    Abstract: Propulsion system for ships and other mobile marine structures, with a driving machine for running an electrical generator, which is further connected to an electrical propulsion motor with connection to a propeller or similar propulsion device. The system can be simplified in that the generator and the propulsion motor are permanently magnetized synchronous machines. The two synchronous machines have substantially the same basic construction, with approximately identical voltage characteristics with regard to frequency, and they are directly connected together with a rigid electrical connection.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 30, 2012
    Assignee: Inpower AS
    Inventors: Normann Sandöy, Reidar Vaardal
  • Propulsion System for Ships
    Publication number: 20070293104
    Abstract: Propulsion system for ships and other mobile marine structures, with a driving machine for running an electrical generator, which is further connected to an electrical propulsion motor with connection to a propeller or similar propulsion device. The system can be simplified in that the generator and the propulsion motor are permanently magnetized synchronous machines. The two synchronous machines have substantially the same basic construction, with approximately identical voltage characteristics with regard to frequency, and they are directly connected together with a rigid electrical connection.
    Type: Application
    Filed: August 27, 2004
    Publication date: December 20, 2007
    Inventors: Normann Sandoy, Reidar Vaardal