Patents by Inventor Roald Gundersen

Roald Gundersen 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).

  • Truss and column structures incorporating natural round timbers and natural branched round timbers
    Patent number: 9499983
    Abstract: Trusses comprising natural round timbers as top and bottom cords are provided. Also provided are truss and column assemblies comprising natural branched round timber columns connected to a truss.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: November 22, 2016
    Assignee: Whole Trees, LLC
    Inventor: Roald Gundersen
  • TRUSS AND COLUMN STRUCTURES INCORPORATING NATURAL ROUND TIMBERS AND NATURAL BRANCHED ROUND TIMBERS
    Publication number: 20150225956
    Abstract: Trusses comprising natural round timbers as top and bottom cords are provided. Also provided are truss and column assemblies comprising natural branched round timber columns connected to a truss.
    Type: Application
    Filed: April 22, 2015
    Publication date: August 13, 2015
    Inventor: Roald Gundersen
  • Truss and column structures incorporating natural round timbers and natural branched round timbers
    Patent number: 9038347
    Abstract: Trusses comprising natural round timbers as top and bottom cords are provided. Also provided are truss and column assemblies comprising natural branched round timber columns connected to a truss.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 26, 2015
    Assignee: Whole Trees, LLC
    Inventor: Roald Gundersen
  • TRUSS AND COLUMN STRUCTURES INCORPORATING NATURAL ROUND TIMBERS AND NATURAL BRANCHED ROUND TIMBERS
    Publication number: 20140174017
    Abstract: Trusses comprising natural round timbers as top and bottom cords are provided. Also provided are truss and column assemblies comprising natural branched round timber columns connected to a truss.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: Whole Trees, LLC
    Inventor: Roald Gundersen
  • Method for upgrading of silicon-containing residues obtained after leaching of copper-containing residues from chlorosilane synthesis
    Patent number: 5772728
    Abstract: The present invention relates to a method for upgrading silicon-containing solid residues obtained after leaching of copper from copper-containing residues from direct synthesis of organochlorosilanes. Solid residue, optionally together with an oxidation agent, is supplied to a smelting furnace where the residues are melted and form a molten metallic phase substantially containing silicon and a calcium silicate slag and tapping of the molten metallic phase and an inert slag from the smelting furnace.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: June 30, 1998
    Assignee: Elkem ASA
    Inventors: Inger Johanne Eikeland, Roald Gundersen, Ragnhild Jensen
  • Method for treatment of residues from organochlorosilane and/or chlorosilansynthesis
    Patent number: 5651807
    Abstract: The present invention relates to method for treatment of residues originating from organochlorosilanes- and/or chlorosilane syntheses. The residues are, optionally together with an oxidation agent, supplied to a smelting furnace where the residues are melted in order to form a molten metallic phase comprising at least of silicon and copper and a slag phase, tapping of the metallic melt and an inert slag from the smelting furnace. Copper is dissolved from the solidified silicon-copper containing metallic phase by leaching with a mineral acid in order to produce a solid product substantially containing silicon, whereafter copper is recovered from the leach solution.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 29, 1997
    Assignee: Elkem a/s
    Inventors: Roald Gundersen, Inger Johanne Eieland, Ragnhild Jensen
  • Method for recovering iron chloride, aluminum chloride and calcium chloride from a leach solution
    Patent number: 5585080
    Abstract: The present invention relates to a method for recovering iron chloride, aluminum chloride and calcium chloride from silicon and ferrosilicon or from residues which contain silicon and/or ferrosilicon and metal chlorides and optionally copper and/or copper compounds, which materials are leached with HCl or HCl+FeCl.sub.3 /FeCl.sub.2 solutions, whereafter the solid silicon or ferrosilicon residue is removed from the leach solution and where any copper is removed from the leach solution. Fe.sup.2+ in the leach solution is oxidized to Fe.sup.3+ whereafter the leach solution is subjected to a liquid-liquid extraction by means of an organic phase containing n-tributyl phosphate dissolved in a hydrocarbon solvent in order to extract FeCl.sub.3 and at least a part of CaCl.sub.2 from the leach solution, stripping FeCl.sub.3 and any CaCl.sub.2 from the organic phase by water, concentrating the remaining solution by evaporation and adding HCl gas to the solution in order to selectively precipitate AlCl.sub.3.6H.sub.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: December 17, 1996
    Assignee: Elkem a/s
    Inventors: Einar Andersen, Bruno Ceccaroli, Roald Gundersen