Patents by Inventor Lieven Anaf

Lieven Anaf 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).

  • Metal stack for fuel cells or electrolysers
    Patent number: 7585583
    Abstract: A stack, to be used in a fuel cell or electrolyzer, includes a collector layer, at least one diffusion layer and at least one anchoring layer. The collector layer being a metal foil or metal plate or foamed metal sheet, the diffusion layer can be a metal mesh or expanded metal sheet. An anchoring layer having a thickness of less than 0.5 mm can include metal fibers and be sintered between the collector layer and the diffusion layer.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: September 8, 2009
    Assignee: NV Bekaert SA
    Inventors: Ronny Losfeld, Lieven Anaf
  • Bipolar plate comprising metal wire
    Publication number: 20060213767
    Abstract: A bipolar plate as subject of the invention comprises a polymer wall (420) and a first (430) and a second (440) electrode. The first electrode is positioned at a first side of the polymer wall and the second electrode is positioned at the second side of the polymer wall. The first and the second electrode are partially embedded in the polymer wall where they make electrical contact with each other in the polymer wall. At least one of the electrodes comprises a metal wire knitted fabric, which is partially embedded in the polymer wall.
    Type: Application
    Filed: April 29, 2003
    Publication date: September 28, 2006
    Inventor: Lieven Anaf
  • Short metal fibers
    Publication number: 20060143882
    Abstract: The present invention relates to short metal fibers. A set of short metal fibers, with an equivalent diameter ranging from 1 to 150 ?m, comprises entangled and curved fibers. At least 10% of the short metal fibers are entangled, whereas the length of the curved fibers is distributed according to a gamma-distribution, having an average length preferably between 10 and 2000 ?m.
    Type: Application
    Filed: March 1, 2006
    Publication date: July 6, 2006
    Inventors: Ronny Losfeld, Lieven Anaf
  • Temperature resistant material comprising short metal fibers
    Patent number: 7048996
    Abstract: A temperature resistant material, comprising a temperature resistant matrix and a set of short metal fibers, which characterized in that the set of short metal fibers represents at least 0.5% by weight of the temperature resistant material. The set of short metal fibers has an equivalent diameter D in the range of 1 to 150 ?, and comprising curved fibers and entangled fibers. The curved fibers have an average length L in the range of 10 to 2000 ?.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: May 23, 2006
    Assignee: N.V. Bekaert S.A.
    Inventors: Ronny Losfeld, Lieven Anaf
  • Short metal fibers
    Patent number: 7045219
    Abstract: The present invention relates to short metal fibers. A set of short metal fibers, with an equivalent diameter ranging from 1 to 150 $(m)m, comprises entangled and curved fibers. At least 10% of the short metal fibers are entangled, whereas the length of the curved fibers is distributed according to a gamma-distribution, having an average length preferably between 10 and 2000 $(m)m.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: May 16, 2006
    Assignee: N.V. Bekaert S.A.
    Inventors: Ronny Losfeld, Lieven Anaf
  • Short metal fibers
    Publication number: 20050233666
    Abstract: The present invention relates to short metal fibers. A set of short metal fibers, with an equivalent diameter ranging from 1 to 150 ?m, comprises entangled and curved fibers. At least 10 % of the short metal fibers are entangled, whereas the length of the curved fibers is distributed according to a gamma-distribution, having an average length preferably between 10 and 2000 ?m.
    Type: Application
    Filed: May 17, 2005
    Publication date: October 20, 2005
    Inventors: Ronny Losfeld, Lieven Anaf
  • Porous metal stack for fuel cells or electrolysers
    Publication number: 20050069747
    Abstract: A stack to be used in a fuel cell or an electrolyser, comprises an impermeable metal structure, at least one first metal fiber layer and at least one second metal fiber layer. The impermeable metal structure is sintered to one side of said first metal fibers layer and the second metal fibers layer is sintered to the other side of said first metal fibers layer. A planar air permeability of said stack of more than 0.02 l/min*cm is provided, whereas the porosity of said second metal fiber layer being less than 80%.
    Type: Application
    Filed: December 19, 2002
    Publication date: March 31, 2005
    Inventors: Lieven Anaf, Ronny Losfeld
  • Metal stack for fuel cells or electrolysers
    Publication number: 20040265677
    Abstract: A stack, to be used in a fuel cell or electrolyser, comprises a collector layer, at least one diffusion layer and at least one anchoring layer. The collector layer being a metal foil or metal plate or foamed metal sheet, the diffusion layer being a metal mesh or expanded metal sheet. An anchoring layer having a thickness of less than 0.5 mm and comprising metal fibers, is sintered between the collector layer and the diffusion layer.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 30, 2004
    Inventors: Ronny Losfeld, Lieven Anaf
  • Short metal fibers
    Publication number: 20040062925
    Abstract: The present invention relates to short metal fibers. A set of short metal fibers, with an equivalent diameter ranging from 1 to 150 $(m)m, comprises entangled and curved fibers. At least 10% of the short metal fibers are entangled, whereas the length of the curved fibers is distributed according to a gamma-distribution, having an average length preferably between 10 and 2000 $(m)m.
    Type: Application
    Filed: June 12, 2003
    Publication date: April 1, 2004
    Inventors: Ronny Losfeld, Lieven Anaf
  • Temperature resistant material comprising short metal fibers
    Publication number: 20040029705
    Abstract: A temperature resistant material, comprising a temperature resistant matrix and a set of short metal fibers, which characterized in that the set of short metal fibers represents at least 0.5% by weight of the temperature resistant material. The set of short metal fibers has an equivalent diameter D in the range of 1 to 150&mgr;, and comprising curved fibers and entangled fibers. The curved fibers have an average length L in the range of 10 to 2000&mgr;.
    Type: Application
    Filed: June 12, 2003
    Publication date: February 12, 2004
    Inventors: Ronny Losfeld, Lieven Anaf
  • Heterogeneous knitted fabric
    Patent number: 5631067
    Abstract: Heterogeneous custom knitted fabric for lining the surfaces of molds includes predetermined surface zones with different knitted patterns. The knitted fabric can be utilized in devices designed for the shaping of, for example, plates of glass.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: May 20, 1997
    Assignee: N. V. Bekaert S.A.
    Inventors: Lieven Anaf, Gabriel Dewaegheneire