Patents by Inventor Roy Kristiansen

Roy Kristiansen 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).

  • Helmet, helmet liner and method for manufacturing the same
    Patent number: 7676854
    Abstract: This invention relates to a helmet, comprising an external shell (9) and an impact-absorbing helmet liner (10) in which the helmet liner comprises a layer provided with protruding, deformable and impact-absorbing hollow knobs (7) distributed on an substantial part of the surface of the helmet liner as a protective layer. The helmet is characterized in that the hollow knots (7) are arranged for deformation by crushing in case of external impact on the helmet, and that the helmet liner (10) with the hollow knots (7) exhibits undercut. The helmet may also comprise an impact-absorbing and preferably resilient layer (2) which may be arranged between the external shell (9) and an internal lining (11) being arranged to rest in contact with the head of a user.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: March 16, 2010
    Assignee: Crescendo AS
    Inventors: Jan Gisle Berger, Johan Horsrud, Ulf Tolfsen, Roy Kristiansen
  • Helmet, helmet liner and method for manufacturing the same
    Publication number: 20050246824
    Abstract: This invention relates to a helmet, comprising an external shell (9) and an impact-absorbing helmet liner (10) in which the helmet liner comprises a layer provided with protruding, deformable and impact-absorbing hollow knobs (7) distributed on an substantial part of the surface of the helmet liner as a protective layer. The helmet is characterized in that the hollow knots (7) are arranged for deformation by crushing in case of external impact on the helmet, and that the helmet liner (10) with the hollow knots (7) exhibits undercut. The helmet may also comprise an impact-absorbing and preferably resilient layer (2) which may be arranged between the external shell (9) and an internal lining (11) being arranged to rest in contact with the head of a user.
    Type: Application
    Filed: April 7, 2005
    Publication date: November 10, 2005
    Applicant: CRESCENDO AS
    Inventors: Jan Berger, Johan Horsrud, Ulf Tolfsen, Roy Kristiansen
  • Walker
    Patent number: D503909
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: April 12, 2005
    Assignee: Acess AS
    Inventors: Ulf Tolfsen, Terje Johansen, Roar Abrahamsen, Roy Kristiansen