Patents by Inventor Carsten Haavardtun

Carsten Haavardtun 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: 8783630
    Abstract: A riser clamp (1) made up of several parts and designed to carry a plurality of fluid pipes (11) in parallel with and spaced apart from a surface coated steel riser (10) is shown. The riser (10) itself is designed to be deployed into the sea for communication between a well head at the seabed and a surface vessel. Each riser clamp (1) is designed for frictional, non rotatable fixation to the surface coated riser (10) and is provided with a plurality of pipe saddles (V) to carry the respective fluid pipes (11). The riser clamp (1) has an internal abutment surface (2) made of fiber reinforced composite material which is configured substantially complementary to and designed to bear against the external, surface coated surface of the riser (10). The riser clamp (1) is tightened by means of circumferentially acting tightening means.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 22, 2014
    Assignee: Aker Subsea AS
    Inventors: Per Kristian Gronlund, Carsten Haavardtun, Kjell Hagatun, Helge Grande Urhamar
  • Publication number: 20110316274
    Abstract: A riser clamp (1) made up of several parts and designed to carry a plurality of fluid pipes (11) in parallel with and spaced apart from a surface coated steel riser (10) is shown. The riser (10) itself is designed to be deployed into the sea for communication between a well head at the seabed and a surface vessel. Each riser clamp (1) is designed for frictional, non rotatable fixation to the surface coated riser (10) and is provided with a plurality of pipe saddles (V) to carry the respective fluid pipes (11). The riser clamp (1) has an internal abutment surface (2) made of fibre reinforced composite material which is configured substantially complementary to and designed to bear against the external, surface coated surface of the riser (10). The riser clamp (1) is tightened by means of circumferentially acting tightening means.
    Type: Application
    Filed: March 17, 2010
    Publication date: December 29, 2011
    Inventors: Per Kristian Grønlund, Carsten Haavardtun, Kjell Hagatun, Helge Grande Urhamar