Patents by Inventor Ronny Losfeld

Ronny Losfeld 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
  • Layered filter structure comprising short metal fibers
    Patent number: 7445853
    Abstract: The invention relates to a layered filter structure, said filter element comprises—a first layer, said first layer comprising a porous metal layer;—a second layer, said second layer comprising a self-supporting layer of sintered short metal fibers. The first and the second layer are sintered together. The layered filter structure is in particular suitable as surface filtration medium, for example for the filtration of liquids or gases.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: November 4, 2008
    Assignee: NV Bekaert SA
    Inventors: Ronny Losfeld, Johan Versieck
  • 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 $(m)m.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: May 16, 2006
    Assignee: N.V. Bekaert S.A.
    Inventors: Ronny Losfeld, Lieven Anaf
  • Layered filter structure comprising short metal fibers
    Publication number: 20060003162
    Abstract: The present invention relates to short metal fibers. A set of short metal fibers, with an equivalent diameter ranging from 1 to 150$(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: October 6, 2003
    Publication date: January 5, 2006
    Applicant: N.V.BEKAERT S.A.
    Inventors: Ronny Losfeld, Johan Versieck
  • 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
  • Hot gas filtration system
    Patent number: 6733575
    Abstract: A coal-fired power generation system including means for the production of coal-derived gas and a filter system for the filtration of this coal-derived gas. The filter system comprises at least one high temperature and, corrosion resistant filter. The filter is made from a Fe—Cr—Al based alloy further comprising at least one additional element selected from the group consisting of Sc, Y, Ti, Zr, Hf, V, Nb, Ta and the lanthanides.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: May 11, 2004
    Assignee: N.V. Bekaert S.A.
    Inventors: Ignace Lefever, Ronny Losfeld, Johan Vandamme
  • 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
  • Laminated metal structure
    Patent number: 6379816
    Abstract: Laminated metal structure includes a radially outer component and a radially inner component concentrically interconnected with each other. The radially outer component has a porosity of at least 80% and the radially inner component is a radially impermeable strength element such as a metal foil. The metal structure can be used in a continuous ambulant peritoneal dialysis treatment for anchoring a catheter in the human body.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 30, 2002
    Assignee: N.V. Bekaert S.A.
    Inventors: Boudewijn De Loose, Ronny Losfeld
  • Process for continuously manufacturing a porous laminate
    Patent number: 5679441
    Abstract: A method for manufacturing a porous laminate includes continuously passing a laminate preform having a metal wire mesh and a metal non-woven fiber web superposed on the wire mesh between rotating pressure rollers having differing electrical potentials. The fibers of the non-woven web are sintered together at mutual points of contact and to the mesh by passing an electrical current cross-sectionally through the laminate preform in a zone of contact with the rollers, thereby forming the porous laminate.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: October 21, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Johan Saelens, Roger De Bruyne, Ronny Losfeld
  • Burner membrane
    Patent number: 5088919
    Abstract: The invention relates to a burner membrane (1) for radiant burner comprising a porous sintered web of inorganic fibres that are resistant to high temperatures, wherein at least the membrane surface (3) opposite from the fuel supply side (2) has been provided with grooves (4) in the shape of a grid and which grooves bound the meshes (5) of the grid. Preferably, the meshes are regular polygons with a surface area of between 4 and 400 mm.sup.2. The porosity is between 70% and 90% and the permeability variation over its surface is less than 25%.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: February 18, 1992
    Assignee: N. V. Bekaert S.A.
    Inventors: Roger De Bruyne, Ronny Losfeld
  • Compacting of a metal web product made
    Patent number: 4983467
    Abstract: A method of compacting a non-woven sintered metal web (1), characterized in that said non woven metal web (1) as such is isostatically pressed, preferably cold isostatically pressed. The isostatically pressed metal web may be used in filter applications and in radiant surface combustion burners.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: January 8, 1991
    Assignee: N. V. Bekaert S.A.
    Inventors: Roger De Bruyne, Herve Schepens, Ignace Lefever, Ronny Losfeld
  • Laminated object comprising metal fibre webs
    Patent number: 4810587
    Abstract: Laminated object comprising sintered metal fibre webs at least one web of which consists of application-active metal fibres joined to an adjacent mixed-fibre web and a carrier. Depending on the nature of the active fibres, the object is e.g. applicable in membranes for radiant burners, in catalysts and wear-resistant seals.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: March 7, 1989
    Assignee: N.V. Bekaert S.A.
    Inventors: Ronny Losfeld, Ignace Lefever