Patents Assigned to N.V. Bekaert S.A.
  • 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
  • Reproduction apparatus with microwave detection
    Patent number: 5672859
    Abstract: A reproduction apparatus (14) for reproducing documents (12) which comprise a base material. The apparatus comprises a platen (10) for forming a scanning area and for positioning the documents (12) on its one side, scanning means (18) for scanning the scanning area, and means for obtaining a relative movement between the scanning means and the documents in order to allow for the scanning. The scanning means (18) comprise a microwave system which is constituted by microwave transceivers (26) arranged in an array such that they can detect the presence of particles (13) which have electromagnetic properties which are substantially different from the electromagnetic properties of the base material and which are incorporated in at least a part of the documents (12), irrespective of the position of the documents (12) on the scanning area.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: September 30, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Johan Samyn, Walter Van Loock
  • Wire bead plaster, stucco and the like
    Patent number: 5669195
    Abstract: The invention relates to a wire bead (1) for plaster, stucco and the like comprising a strip of bent diagonal wires (2) and longitudinal wires (3) welded to one another, in which the strip is bent at an angle around a longitudinal wire (4) to form a wire bead (1) having a virtually V-shaped cross-section, in which the longitudinal wire running along the apex of the wire bead (1) is provided with a longitudinal profile (7) having a virtually triangular-shaped cross-section.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: September 23, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Alois Looverie, Pol Timperman
  • Sintered multilayer metal fiber web
    Patent number: 5665479
    Abstract: A pressure resistant sintered non-woven multilayer metal fiber web is particularly useful for high pressure filtration applications (e.g., polymer filtration). The web has a porosity of between 50% and 74%, a weight of between 750 and 1600 g/m.sup.2, and a fiber diameter in each successive layer of between 1.2 to 2 times less than the fiber diameter in the previous layer. The web may be covered with an outer permeable layer at one, or both, of its planar sides.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: September 9, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Johan Vandamme, Jan Loncke
  • Additive for lubricants containing a metal complex
    Patent number: 5650382
    Abstract: An additive for lubricants including a dispersible metal complex compound containing phosphorus and nitrogen. This complex compound consists of a co-ordination compound containing a fatty acid residue and at most one RCOO group per two metal atoms. Zinc is the metal of preference. Utilization for wet drawing of metal wire.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: July 22, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Frank Deruyck, Wilfried Coppens
  • 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
  • Non-wrapped non-sleeving compact cord
    Patent number: 5592806
    Abstract: A steel cord (10) adapted for the reinforcement of elastomeric articles including a center structure of one to five center filaments (16) and a maximum of two layers of layer filaments surrounding said center structure: an outer layer of outer layer filaments (12, 13) and optionally, an intermediate layer of intermediate layer filaments (24) between the center structure and the outer layer. All the center filaments (16) and all the layer filaments (12, 13, 24) have the same twist hand and have the same twist pitch. The outer layer filaments (12, 13) exert a force which is directed radially inward.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: January 14, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Joost Berghmans, Johan De Waegenaere, Pierre Klingeleers, Frans Van Giel
  • Twisting steel cord with wavy filament
    Patent number: 5581990
    Abstract: A steel cord comprises steel filaments twisted around each other in a first direction about at least one steel core filament having a wave form. The twisted filaments are individually subjected to a rotation about their own axes. This steel cord is formed by deforming the core filament into a planar wave form and twisting the core filament in a second direction to a predetermined degree. The core filaments together with the other filaments are twisted in the first direction so that the twisted filaments are individually subjected to a rotation around their own axes in the first direction.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: December 10, 1996
    Assignee: N.V. Bekaert S.A.
    Inventors: Frans Van Giel, Xavier De Vos, Luc Sabbe
  • Fence with mesh panels
    Patent number: 5542649
    Abstract: A fencing section comprises a rod panel which is attached in the edge zone on both sides to an adjacent post in a number of attachment points by using of an attachment device. Such a device has a frontal part and a side part containing a horizontal groove wherein a horizontally extending section of the mesh panel runs. For a first part number the groove is located in the upper surface of the device, and for the other part number in the lower surface of the device. The device has a stud in its frontal part that fits into an opening in a frontal vane of the post. In at least one of the two part numbers, the device is elastically deformable. Such a fencing section is easy to assemble, but is extremely difficult to dismantle by vandalism.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: August 6, 1996
    Assignee: N.V. Bekaert S.A.
    Inventors: Marnix Allegaert, Steven Wostyn
  • Steel cord construction
    Patent number: 5512380
    Abstract: A steel cord (10) adapted for the reinforcement of elastomers, comprises individual steel filaments (12, 14). Some of these steel filaments (12) have a difference in torsion saturation level in comparison with other steel filaments (14). All of the individual steel filaments have a predetermined number of residual torsions and are preferably free of residual torsions. Such a steel cord is manufactured by making use of two false twisters.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: April 30, 1996
    Assignee: N. V. Bekaert S.A.
    Inventors: Xavier De Vos, Frans Van Giel
  • Guiding bow
    Patent number: 5509260
    Abstract: A guiding bow (1) for an elongated element (3) in a twisting or winding apparatus. At least part of the length of the guiding bow (1) has a transversal cross-section which is streamlined. The core (5) of the guiding bow may be made of a load carrying material, the sheath (7) of a synthetic material.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: April 23, 1996
    Assignee: N.V. Bekaert S.A.
    Inventor: Marc Derdeyn
  • Method and device for overtwisting and undertwisting a steel cord
    Patent number: 5487262
    Abstract: A steel cord, having steel filaments twisted so as to have a final twist pitch, is manufactured by plastically deforming the steel filaments by overtwisting the steel cord to a twist pitch which is smaller than the final twist pitch, untwisting the steel cord to the final twist pitch, further untwisting the steel cord to a twist pitch which is greater than the final twist pitch, and twisting the steel cord again to the final twist pitch. The first two steps (i.e., overtwisting and untwisting) are done under a first tension and the third and fourth steps (i.e., further untwisting and twisting) are done under a second tension which is lower than half of the first tension.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: January 30, 1996
    Assignee: N.V. Bekaert S.A.
    Inventors: Johan De Waegenaere, Luc Sabbe, Frans Van Giel
  • Multi-strand steel cord having a core and peripheral strands surrounding the core
    Patent number: 5461850
    Abstract: A steel cord (10) has a diameter D and includes a core strand (12) and up to nine peripheral strands (14) surrounding the core strand. The core strand (12) has a diameter D1 and the peripheral strands (14) have a diameter D2. The ratio core strand diameter to peripheral strand diameter D1/D2 is greater than a predetermined value in order to enable rubber penetration. Each strand has a center of one or more center filaments (16, 22) and two or more layers of filaments (18, 20, 24, 26) surrounding the center. The twist angle of a radially outer layer is smaller than the twist angle of a radially inner layer of the same strand. A first free space (28) ranging from 0.0015.times.D to 0.0075.times.D is provided in at least the core strand between each pair of filaments (18) of the radially most inner layer.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: October 31, 1995
    Assignee: N.V. Bekaert S.A.
    Inventors: Pol Bruyneel, Luc Bourgois
  • Method apparatus and spool for automated winding
    Patent number: 5460333
    Abstract: A spool (10) where an elongated metal element (25) is to be wound, comprises a core ( 12 ) and two flanges ( 14 ). The core (12) and/or the flanges (14) comprise at least one reference mark (18). The core comprises at least one fixing hole (16). At least one of the fixing holes (16) is located at a predetermined distance from the reference mark (18). The leading end of the elongated element is plastically bent. Next the reference mark (18) is located and the bent part of the elongated element (25) is put into one of the fixing holes (16). Thereafter the elongated element (25) is wound on the spool (10).
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: October 24, 1995
    Assignee: N.V. Bekaert S.A.
    Inventor: Herve Vanhuyse
  • Spool filled with elongated metal element
    Patent number: 5425509
    Abstract: A spool (10) is filled with an elongated metal element (12) which is wound onto the spool with a plurality of windings. The plurality of windings end with a final winding (22) and n windings (24) preceding the final winding ("n preceding windings"), n is hereby greater than or equal to one. The final winding (22) comprises a beginning part (26), a middle part (28) and a trailing end (20). The middle part (28) is under the n preceding windings (24) in order to secure the final winding to the rest of the elongated element. The beginning part (26) and the trailing end (20) are at the same side of the n preceding windings (24).
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: June 20, 1995
    Assignee: N.V. Bekaert S.A.
    Inventors: Bernard Van Severen, Willy Coopman, John Verhaeghe
  • Tensile member for communication cables
    Patent number: 5408560
    Abstract: A communication cable (10) comprises optical fibres (24) and/or metal conductors (20) for the transmission of information, and a tensile member, the tensile member comprising a steel strand and synthetic material. The steel strand has a modulus of elasticity of at least 140 000 N/mm.sup.2. The steel strand comprises a core wire (12) and one layer of layer wires (14) surrounding the core wire. A contact is provided between the layer wires and the core wire. The interstices between the layer wires and the core wire are filled with a first synthetic material (13) having a melting-point above 150.degree. C. The steel strand is covered by a layer of a second synthetic material (16). The filling with the first synthetic material and the covering by a layer of a second synthetic material is such that watertightness is obtained in the longitudinal direction of the tensile member.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: April 18, 1995
    Assignee: N.V. Bekaert S.A.
    Inventors: Geert Seynhaeve, Gerard Vandewalle, Johan Veys
  • Spool
    Patent number: D358931
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: June 6, 1995
    Assignee: N.V. Bekaert S.A.
    Inventor: Herve Vanhuyse
  • Two-piece gate bolting assembly
    Patent number: D365268
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: December 19, 1995
    Assignee: N.V. Bekaert S.A.
    Inventor: Steven Wostyn
  • Sliding gate for a fence
    Patent number: D373199
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: August 27, 1996
    Assignee: N. V. Bekaert S.A.
    Inventor: Rafael Vanthournout
  • Fence
    Patent number: D383792
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: September 16, 1997
    Assignee: N.V. Bekaert S.A.
    Inventor: Stephan Stephani