Patents by Inventor Knut Johan Røssberg

Knut Johan Røssberg 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).

  • Open collar for multi-cable towing system
    Patent number: 9442210
    Abstract: Disclosed are methods and systems for towing multiple source cables with spreader lines coupled to the source cables using open collars. An example system for multi-cable towing may comprise a plurality of source cables coupled to a survey vessel. The example system may further comprise a plurality of energy sources, wherein each o the energy sources is coupled to a respective one of the source cables. The example system may further comprise a plurality of spreader lines extending between the source cables. The example system may further comprise a plurality of open collars coupling the spreader lines to the source cables, wherein the open collars are slidably coupled to the source cables.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: September 13, 2016
    Assignee: PGS Geophysical AS
    Inventors: Kenneth Karlsen, Knut Johan Røssberg
  • Open Collar for Multi-Cable Towing System
    Publication number: 20140153361
    Abstract: Disclosed are methods and systems for towing multiple source cables with spreader lines coupled to the source cables using open collars. An example system for multi-cable towing may comprise a plurality of source cables coupled to a survey vessel. The example system may further comprise a plurality of energy sources, wherein each o the energy sources is coupled to a respective one of the source cables. The example system may further comprise a plurality of spreader lines extending between the source cables. The example system may further comprise a plurality of open collars coupling the spreader lines to the source cables, wherein the open collars are slidably coupled to the source cables.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: PGS Geophysical AS
    Inventors: Kenneth Karlsen, Knut Johan Røssberg
  • System for adjusting geophysical sensor streamer front end towing depth
    Publication number: 20110158045
    Abstract: A system for towing a marine geophysical sensor streamer includes a lead in line extending from a tow vessel. A streamer front end termination is coupled to an end of the lead in line and to a forward end of the sensor streamer. A floatation device is coupled by a line proximate to the front end termination. A winch is disposed on the floatation device to extend and retract the line. A depth sensor is disposed proximate the front end termination. A controller is in signal communication with the winch and the depth sensor so that the forward end of the streamer is maintained at a selected depth in the body of water.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Inventors: Kenneth Karlsen, Martin Austad, Marit Ronaess, Svend Edland, Knut Johan Rossberg