Patents by Inventor Per Arne Schieflo

Per Arne Schieflo 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: 6748670
    Abstract: Method of drying a medium for producing a porous matrix from a solution, a paste, an extract, a granulated material or such, where a liquid inert agent is fed into a vessel (5) at controlled pressure and amount through a valve (7), transferring the pressurized liquid inert agent to a mixing vessel (4), said mixing vessel (4) also receiving the solution, such as paste, extract or granulated material, through an inlet valve (10), adjusting the pressure and temperature inside the mixing vessel (4) to desired levels by a release valve (6), upon complete mixing of the inert agent with the solution, the mixture is expanded into a porous matrix and injected into a drying circuit through a drying chamber (3), the matrix thereby being kept suspended in the drying chamber by the flowing drying medium, supplied by the blower (2), the matrix moisture being removed from the mixture through a heat exchanger coil comprising a first heat exchanger (11) where the water vapour is condensed and removed from the circuit and fina
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: June 15, 2004
    Assignee: DTech AS
    Inventors: Ola Jonassen, Ingvald Strømmen, Per Arne Schieflo, Odilio Alves-Filho
  • Patent number: 6363743
    Abstract: Method for formulating particles from solutions, wherein cooling the solution down to the initial freezing point, to mix the solution under pressure with an inert medium, to expand the solution to solid, fluidable frozen particles comprising the insert medium and the solution in a frozen shape.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: April 2, 2002
    Assignee: Leiv Eiriksson Nyfotek AS
    Inventors: Ola Jonassen, Ingvald Strommen, Per Arne Schieflo, Odilio Alves-Filho