Patents by Inventor Allan Fredholm

Allan Fredholm 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: 8443628
    Abstract: The present invention relates to a method for manufacturing a non-planar product in glass-ceramic. Said method comprises the following steps: (i) in a conventional furnace (3), heating a sheet of precursor glass of said glass-ceramic, so that said sheet becomes formable while avoiding its ceramming; (ii) forming said heated sheet; (iii) cooling said formed sheet (2b); (iv) ceramming said formed, cooled sheet.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: May 21, 2013
    Assignee: Eurokera
    Inventors: Allan Fredholm, Christophe Pierron, Claude Vanotti
  • Publication number: 20100077798
    Abstract: The present invention relates to a method for manufacturing a non-planar product in glass-ceramic. Said method comprises the following steps: (i) in a conventional furnace (3), heating a sheet of precursor glass of said glass-ceramic, so that said sheet becomes formable while avoiding its ceramming; (ii) forming said heated sheet; (iii) cooling said formed sheet (2b); (iv) ceramming said formed, cooled sheet.
    Type: Application
    Filed: December 4, 2007
    Publication date: April 1, 2010
    Inventors: Allan Fredholm, Christophe Pierron, Claude Vanotti
  • Publication number: 20070130994
    Abstract: A method of a drawing a glass ribbon from molten glass sheet via a downdraw process by creating a temperature drop across a thickness of the molten glass flowing over forming surfaces of a forming wedge. The forming wedge includes an electrically conductive material for heating the glass above the root.
    Type: Application
    Filed: November 13, 2006
    Publication date: June 14, 2007
    Inventors: Olus Boratav, Frank Coppola, Andrey Filippov, Allan Fredholm, Michael Gildea, Bruno Gallic, George Shay
  • Publication number: 20050014008
    Abstract: Disclosed are mono- or multi-component glass-ceramic articles (10; 20; 30; 40; 50; 60; 70; 80; 90) having at least one weld joint (100), as well as a method of manufacturing such articles (10; 20; 30; 40; 50; 60; 70; 80; 90), which includes the implementation of at least one welding. The present invention is based upon mastery of the welding of glass-ceramic precursor glasses.
    Type: Application
    Filed: June 29, 2004
    Publication date: January 20, 2005
    Inventors: Claude Gille, Allan Fredholm
  • Patent number: 4639280
    Abstract: A monocrystalline alloy with a high resistance to creep having a nickel base matrix, with a density of the order of 8.5 and having a percentage, by weight, composition as follows: Co 5 to 8%--Cr 6.5 to 10%--Mo 0.5 to 2.5%--W 5 to 9%--Ta 6 to 9%--Al 4.5 to 5.8%--Ti 1 to 2%--Nb 0 to 1.5%--C, Zr, and B each less than 100 ppm--Ni remainder to 100%. Furthermore, the summation Ta+Mo+1/2 W lies between 11.5% and 13.5% by weight, the atomic sum Ti+Al+Ta+Nb lies between 15.5% and 17%, the atomic sum Ta+Nb+Mo+1/2 W lies between 4% and 5.5%, the atomic sum Ti+Al+Ta+Nb+Mo+1/2 W lies between 17.5% and 19% and the atomic sum Ti+Al lies between 12.8% and 14.5%.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: January 27, 1987
    Assignees: Association pour la Recherche et le Developpement des Methodes et Processus Industriels "A.R.M.I.N.E.S.", Societe Imphy S.A., Office National d'Etudes et de Recherche Aerospatiales (ONERA), Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventors: Allan Fredholm, James H. Davidson, Tasadduq Khan, Jean-Mare C. F. Theret