Patents by Inventor Torbjörn Carlberg

Torbjörn Carlberg 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).

  • METHOD FOR PRODUCING AND PROCESSING WOOD CHIPS
    Publication number: 20120325370
    Abstract: This patent application describes a method to produce wood chips with the intention of reducing the energy consumption in the subsequent process steps for pulp production. With the present method wood chipping is done in a wood chipper where the chipping tool (3) has an angle ? (4) within the interval of 75° to 105° between the fibre direction of the log and the side of the tool which faces the chip (2). Angles in this interval will cause an axially directed compression of the chip which will cause a cracking of the wood during chipping.
    Type: Application
    Filed: March 2, 2011
    Publication date: December 27, 2012
    Inventors: Lisbeth Hellström, Per Engstrand, Torbjörn Carlberg, Per Gradin, Oyvind Gregersen