Patents by Inventor Luc Bourgois
Luc Bourgois 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).
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Patent number: 7566486Abstract: A braided hose reinforcement includes left and right turning strips. Each of the strips includes a number of elongated metal elements embedded in a matrix of a polymer material.Type: GrantFiled: May 4, 2001Date of Patent: July 28, 2009Assignee: NV Bekaert SAInventors: Luc Bourgois, Paul Dambre, Dirk Meersschaut, Luc Ravelingien
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Publication number: 20070110937Abstract: A strip (10) for use in manufacturing a flexible pipe or tube (30) comprises a thermoplastic matrix (12) with reinforcing elements (14) and further comprises a barrier layer (16, 18, 20), which is bonded to the thermoplastic matrix (12). The strip provides the two functions of both reinforcement and barrier and allows simplifying the way of manufacturing a flexible pipe or tube.Type: ApplicationFiled: October 4, 2004Publication date: May 17, 2007Inventors: Erwin Lokere, Luc Bourgois
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Patent number: 6883551Abstract: A braided hose reinforcement (14) comprises left and right turning strips (20, 22). Each of said strips comprises a number of steel wires. The steel wires (24) located at the side regions of the strips have a tensile strength which is substantially lower than the tensile strength of the steel wires of the central region.Type: GrantFiled: April 5, 2001Date of Patent: April 26, 2005Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Paul Dambre, Dirk Meersschaut, Luc Ravelingien
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Publication number: 20030150167Abstract: A window elevator system (10) is adapted to be built inside the door of a motor vehicle comprises a driving drum (12), a transmission member (14) and a window (16). The transmission member (14) transmits the movement from the drum to the window. The transmission member is comprises a belt (14). The belt (14) is reinforced by one or more steel cords (28, 38)): at least one of said steel cords is of one of following types which has an improved fatigue resistance: (i) The steel cord (28) comprises more than one strand (30, 34) and each of 18 the strands (30, 34) comprises steel filaments (32, 36) with a diameter less than or equal to 0.12 mm, at least five strands (34) are arranged at the circumferential side of the cord (28); (ii) The steel cord (38) comprises more than one filament (40, 42, 44) and each of the filaments has a diameter less than or equal to 0.12 mm, at least five filaments (44) are arranged at the circumferential side of said cord.Type: ApplicationFiled: November 8, 2002Publication date: August 14, 2003Inventors: Luc Bourgois, Paul Bruyneel, Bert Vanderbeken
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Publication number: 20030129336Abstract: A braided hose reinforcement comprises left and right turning strips. Each of said strips comprises a number of elongated metal elements embedded in a matrix of a polymer material.Type: ApplicationFiled: November 21, 2002Publication date: July 10, 2003Inventors: Luc Bourgois, Paul Dambre, Dirk Meersschaut, Luc Ravelingien
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Patent number: 6247298Abstract: A fabric (144) for use as a stab-resistant insert in protective textiles comprises a plurality of steel cords (100). Each of the steel cords (100) comprises a longitudinal axis (102) and two or more steel filaments (104). Each of the steel filaments (104) forme a twisting angle &agr; with the longitudinal axis (102) of the steel cord (100). The steel cords (100) have two or more of such twisting angles which are substantially different from each other so that any penetrating stab or knife is stopped.Type: GrantFiled: January 5, 1999Date of Patent: June 19, 2001Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Pol Bruyneel, Roger Vanassche, Frans Van Giel
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Patent number: 5883018Abstract: A fabric (144) for use as a stab-resistant insert in protective textiles comprises a plurality of steel cords (100). Each of the steel cords (100) comprises a longitudinal axis (102) and two or more steel filaments (104). Each of the steel filaments (104) forme a twisting angle .alpha. with the longitudinal axis (102) of the steel cord (100). The steel cords (100) have two or more of such twisting angles which are substantially different from each other so that any penetrating stab or knife is stopped.Type: GrantFiled: January 15, 1997Date of Patent: March 16, 1999Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Pol Bruyneel, Roger Vanassche, Frans Van Giel
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Patent number: 5768874Abstract: A steel cord (10) comprises eight or more strands (12, 14) twisted together. Each of the strands has a substantially same cord twisting direction and a substantially same cord twisting pitch in the steel cord, and each of the strands consists of two to five individual filaments (16, 18) twisted together. Such a multi-strand steel cord can be manufactured without having to twist the individual strands separately and beforehand.Type: GrantFiled: October 8, 1996Date of Patent: June 23, 1998Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Paul Soenen, Frans Van Giel
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Patent number: 5461850Abstract: 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: GrantFiled: December 2, 1993Date of Patent: October 31, 1995Assignee: N.V. Bekaert S.A.Inventors: Pol Bruyneel, Luc Bourgois
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Patent number: 5321941Abstract: A steel cord (1) for the reinforcement of rubber articles such as tires includes a core of two to four steel filaments (2) and a layer of steel filaments (3, 4) around the core. All of the filaments have a diameter between 0.15 and 0.40 mm and are twisted in the same direction and at the same pitch. The cord has over a substantial portion of its entire length cross-sections where the accumulated gaps between adjacent layer filaments are at least 0.03 mm. At least one filament of the layer has been preformed differently from the other filaments. The above structure avoids core migration.Type: GrantFiled: October 25, 1991Date of Patent: June 21, 1994Assignee: N.V. Bekaert S.A.Inventors: Jan Bollen, Luc Bourgois, Bernard Huysentruyt
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Patent number: 5234044Abstract: A reinforcing strip, and method of making same specifically adapted for use in reinforcing plies in the belt of rubber tires. The strip comprises a number, preferably 4 to 7, of parallel wires, tightly bound together by a wrapping wire or a binder. This strip form allows to combine the advantages of steel strip, i.e. high lateral and low radial stiffness and thinner plies, with those of conventional steel cord, i.e. high tensile strength and fatigue resistance.Type: GrantFiled: May 17, 1991Date of Patent: August 10, 1993Assignee: N.V. Bekaert S.A.Inventor: Luc Bourgois
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Patent number: 5198307Abstract: A steel strip (1) comprises two to seven round steel filaments (2) lying in parallel adjacent to one another so as to form a single plane of core filaments and one or more filaments (4) which are wrapped around the core filaments in one single wrapping direction. One or more core filaments, individually, or the plane of the core filaments as a whole have residual elastic torsions to such an extent that the strip remains substantially flat over the whole length of the strip if the strip is not subjected to external forces.Type: GrantFiled: November 20, 1991Date of Patent: March 30, 1993Assignee: N. V. Bekaert S.A.Inventors: Luc Bourgois, Urbain D'Haene, Daniel Van Wassenhove
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Patent number: 4969497Abstract: Strand for application as reinforcement in objects of polymer material comprising at least one core and less than six outside wires arranged round it, the core having an outside diameter larger than the diameter of the circle tangent to each of the outside wires in the hollow space that remains free when their cross-sections have the highest packing density and smaller than the diameter of the outside wires, whereby the outside wires are made of carbon steel wire with a tensile strength of at least 2250-1130 log d N/mm.sup.2, d being the wire diameter in mm.Type: GrantFiled: December 13, 1988Date of Patent: November 13, 1990Assignee: N.V. Bekaert S.A.Inventor: Luc Bourgois
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Patent number: 4840214Abstract: A reinforcing strip, and method of making same, specifically adapted for use in reinforcing plies in the belt of rubber tires. The strip comprises a number, preferably 4 to 7, of parallel wires, tightly bound together by a wrapping wire or a binder. This strip form allows to combine the advantages of steel strip, i.e. high lateral and low radial stiffness and thinner piles, with those of conventional steel cord, i.e. high tensile strength and fatigure resistance.Type: GrantFiled: September 10, 1987Date of Patent: June 20, 1989Assignee: N. V. Bekaert S. A.Inventor: Luc Bourgois
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Patent number: 4818631Abstract: A strand for reinforcing objects made of polymer material comprising at least one core wire and less than six outside wires arranged round it, the core wire having an outside diameter larger than the diameter of the circle tangent to each of the outside wires in the hollow space that remains free when their cross-sections have the highest packing density and smaller than the diameter of the outside wires, whereby the outside wires are made of carbon steel wire with a tensile strength of at least 2250-1130 log d N/mm.sup.2, d being the wire diameter in mm. The core wire has a tensile strength less than 2250-1130 log d N/mm.sup.2.Type: GrantFiled: May 11, 1987Date of Patent: April 4, 1989Assignee: N.V. Bekaert S.A.Inventor: Luc Bourgois
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Patent number: 4785617Abstract: A process and machine for making a cord in a structure of one or more layers of filaments, all twisted with a same twist pitch p around a core in which the filaments are not twisted around each other with that same twist pitch p. The cord is made in one continous process in which the core filaments are bundled in a twister, then the layer filaments are joined in parallel to the core bundle on exit from the twister, and the whole is then twisted in a double-twist bunching machine.Type: GrantFiled: April 20, 1987Date of Patent: November 22, 1988Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Luc Sabbe
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Patent number: 4724663Abstract: A steel cord, for use in the reinforcement of resilient articles such as rubber tires, comprises a central bundle of wires surrounded by a circumferential layer of helicoidally twisted wires. In the central bundle, one can distinguish a core and a surrounding layer, the latter having the same twist pitch as the circumferential layer. In order to reduce wire migration, the wires of the central bundle show a limited number of relative position changes, between 2 and 300 per 30 cm cord length.Type: GrantFiled: September 5, 1986Date of Patent: February 16, 1988Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Freddy Baillievier
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Patent number: 4722210Abstract: A process for the manufacture of hose or tubing conditions plastic high pressure hose having at least one reinforcing layer of steel wires, cords or longitudinal segments thereof. The hose is internally pressurized for a predetermined period of time which provides a residual permanent elongation of at least 0.5% and increases the interior volume by at least 2% upon release of the pressure.Type: GrantFiled: February 26, 1986Date of Patent: February 2, 1988Assignee: N.V. Bekaert S.A.Inventors: Luc Bourgois, Urbain D'Haene, Godfried Vanneste
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Patent number: 4628683Abstract: A steel cord, for use in the reinforcement of resilient articles such as rubber tyres, comprises a central bundle of wires surrounded by a circumferential layer of helicoidally twisted wires. In the central bundle, one can distinguish a core and a surrounding layer, the latter having the same twist pitch as the circumferential layer. In order to reduce wire migration, the wires of the central bundle show a limited number of relative position changes, between 2 and 300 per 30 cm cord length.Type: GrantFiled: June 26, 1985Date of Patent: December 16, 1986Assignee: N. V. Bekaert S.A.Inventors: Luc Bourgois, Freddy Baillievier
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Patent number: 4627229Abstract: A steel cord for use in the reinforcement of resilient articles such as rubber tires has a core and one surrounding layer of wires, the diameter and twist pitch of the core wires being substantially different from the diameter and twist pitch of the wires of the layer surrounding the core. This construction eliminates wire migration without loss of reinforcing ability of the cord in the resilient material.Type: GrantFiled: June 26, 1985Date of Patent: December 9, 1986Assignee: N.V. Bekaert S.A.Inventor: Luc Bourgois