Patents by Inventor Per Kristian Egeberg

Per Kristian Egeberg 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 and method for compaction of silicon powder
    Patent number: 8418605
    Abstract: An apparatus is provided for compaction of silicon powder in a reactor to minimize oxidation of the silicon, which compaction is in part effected by using the drop in pressure across a filter for exit gases from the reactor, the silicon powder being passed along a duct towards an exit of a reactor. The compaction is in addition carried out mechanically with the aid of a piston arranged at a gas exit, the filter advantageously being arranged on the piston, the filter being permeable to the gases, but collecting the powder. A method is also provided for compaction of silicon powder using an apparatus as described above.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: April 16, 2013
    Assignee: SilanSil AS
    Inventor: Per Kristian Egeberg
  • APPARATUS AND METHOD FOR COMPACTION OF SILICON POWDER
    Publication number: 20110018159
    Abstract: An apparatus is provided for compaction of silicon powder in a reactor to minimise oxidation of the silicon, which compaction is in part effected by using the drop in pressure across a filter for exit gases from the reactor, the silicon powder being passed along a duct towards an exit of a reactor. The compaction is in addition carried out mechanically with the aid of a piston arranged at a gas exit, the filter advantageously being arranged on the piston, the filter being permeable to the gases, but collecting the powder. A method is also provided for compaction of silicon powder using an apparatus as described above.
    Type: Application
    Filed: August 7, 2008
    Publication date: January 27, 2011
    Applicant: SILANSIL AS
    Inventor: Per Kristian Egeberg