Patents by Inventor Gunnar Johnsen

Gunnar Johnsen 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: 10468925
    Abstract: Rotor for motor or generator, which rotor (11) includes a rotor ring (12), which rotor includes a yoke formed by yoke segments (13) which by arrangement to the rotor ring (12) forms a complete yoke. The yoke segments (13) are provided with one or more magnet blanks (19), which magnet blanks (19) are formed by one or more permanent magnets (18).
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: November 5, 2019
    Assignee: Rolls-Royce Marine AS
    Inventors: Gunnar Johnsen, Charles Skar
  • Patent number: 9592897
    Abstract: The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets (4) are arranged round the propeller unit's rotatable rotor housing (1), comprising a number of propeller blades (3), and a number of permanent magnets round the propeller unit's external, stationary casing (2) housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 14, 2017
    Assignee: Rolls-Royce Marine AS
    Inventor: Gunnar Johnsen
  • Publication number: 20150048701
    Abstract: Rotor for motor or generator, which rotor (11) includes a rotor ring (12), which rotor includes a yoke formed by yoke segments (13) which by arrangement to the rotor ring (12) forms a complete yoke. The yoke segments (13) are provided with one or more magnet blanks (19), which magnet blanks (19) are formed by one or more permanent magnets (18).
    Type: Application
    Filed: March 22, 2013
    Publication date: February 19, 2015
    Applicant: Rolls-Royce Marine AS
    Inventors: Gunnar Johnsen, Charles Skar
  • Patent number: 8814617
    Abstract: In a thruster for a vessel including a hull, the thruster comprises at least one tunnel element and at least one thruster unit. The tunnel element includes at least a part of a through tunnel in the hull when arranged in the hull. The at least one thruster unit and the at least one tunnel element include cooperating fastening devices for detachably fixing the at least one thruster unit in the at least one tunnel element such that the at least one thruster unit is configured to be passed through the tunnel and mounted to the at least one tunnel element, or demounted from the at least one tunnel element and passed out of the tunnel. A method for mounting and demounting a thruster in a tunnel element includes a tunnel element arranged in the vessel of a hull.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: August 26, 2014
    Assignee: Rolls-Royce Marine AS
    Inventors: Ole Arnt Marholm, Gunnar Johnsen, Dag Brandal
  • Publication number: 20130040514
    Abstract: In a thruster for a vessel including a hull, the thruster comprises at least one tunnel element and at least one thruster unit. The tunnel element includes at least a part of a through tunnel in the hull when arranged in the hull. The at least one thruster unit and the at least one tunnel element include cooperating fastening devices for detachably fixing the at least one thruster unit in the at least one tunnel element such that the at least one thruster unit is configured to be passed through the tunnel and mounted to the at least one tunnel element, or demounted from the at least one tunnel element and passed out of the tunnel. A method for mounting and demounting a thruster in a tunnel element includes a tunnel element arranged in the vessel of a hull.
    Type: Application
    Filed: November 25, 2010
    Publication date: February 14, 2013
    Applicant: ROLLS-ROYCE MARINE AS
    Inventors: Ole Arnt Marholm, Gunnar Johnsen, Dag Brandal
  • Publication number: 20120122356
    Abstract: The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets (4) are arranged round the propeller unit's rotatable rotor housing (1), comprising a number of propeller blades (3), and a number of permanent magnets round the propeller unit's external, stationary casing (2) housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor for housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.
    Type: Application
    Filed: May 12, 2010
    Publication date: May 17, 2012
    Applicant: ROLLS-ROYCE MARINE AS
    Inventor: Gunnar Johnsen