Patents by Inventor Per-Arne Fröderberg

Per-Arne Fröderberg 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).

  • Apparatus for treating material comprising pressure vessel with drum rotatable arranged inside
    Patent number: 8431085
    Abstract: An apparatus for treating material includes a pressure vessel and an agitation device for agitating the material received in the pressure vessel. The agitation device may include a drum which may be rotatably arranged inside the pressure vessel and which has an inner space for receiving the material that is introduced into the pressure vessel. The agitation device may include one or more agitation blades mounted in the drum so as to act on the material received in the inner space of the drum as the drum rotates in relation to the pressure vessel. A drive mechanism may rotate the drum in relation to the pressure vessel. Waste, such as garbage, may be treated with steam and pressure using the apparatus.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: April 30, 2013
    Assignee: Sanciflex AB
    Inventors: Per-Arne Fröderberg, Melvin R. Madeley, Anna-Lena Seedhill
  • APPARATUS FOR TREATING MATERIAL COMPRISING PRESSURE VESSEL WITH DRUM ROTATABLE ARRANGED INSIDE
    Publication number: 20100055010
    Abstract: An apparatus for treating material includes a pressure vessel and an agitation device for agitating the material received in the pressure vessel. The agitation device may include a drum which may be rotatably arranged inside the pressure vessel and which has an inner space for receiving the material that is introduced into the pressure vessel. The agitation device may include one or more agitation blades mounted in the drum so as to act on the material received in the inner space of the drum as the drum rotates in relation to the pressure vessel. A drive mechanism may rotate the drum in relation to the pressure vessel. Waste, such as garbage, may be treated with steam and pressure using the apparatus.
    Type: Application
    Filed: November 6, 2009
    Publication date: March 4, 2010
    Applicant: Sanciflex AB
    Inventors: Per-Arne Fröderberg, Melvin R. Madeley, Anna-Lena Seedhill