Patents by Inventor Dirk Meersschaut
Dirk Meersschaut 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: 9169528Abstract: A cold drawn carbon steel filament has a surface with traces of bismuth. The steel filament can be used as a sawing wire or as part of a steel cord. During its manufacturing the steel filament has been subjected to a controlled cooling by bringing the steel filament in contact with bismuth. Bismuth may replace lead without harming the environment.Type: GrantFiled: February 13, 2009Date of Patent: October 27, 2015Assignee: NV Bekaert SAInventors: Koen Vanoverberghe, Willem Dekeyser, Dirk Meersschaut
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Patent number: 8883306Abstract: A steel filament adapted for the reinforcement of elastomer or for thermoplastic products has a carbon content ranging up to 0.20 per cent by weight. The steel filament is provided with a coating promoting the adhesion with elastomer or thermoplastic products. The steel filament is drawn until a final diameter of less than 0.60 mm and a final tensile strength of more than 1200 MPa. Intermediate heat treatments are avoided so that the carbon footprint of the steel filament is substantially reduced.Type: GrantFiled: February 25, 2009Date of Patent: November 11, 2014Assignee: NV Bekaert SAInventors: Javier Del Río Rodriguez, Dirk Meersschaut
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Publication number: 20110114231Abstract: A cold drawn carbon steel filament has a surface with traces of bismuth. The steel filament can be used as a sawing wire or as part of a steel cord. During its manufacturing the steel filament has been subjected to a controlled cooling by bringing the steel filament in contact with bismuth. Bismuth may replace lead without harming the environment.Type: ApplicationFiled: February 13, 2009Publication date: May 19, 2011Applicant: NV BEKAERT SAInventors: Koen Vanoverberghe, Willem Dekeyser, Dirk Meersschaut
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Publication number: 20110000593Abstract: A steel filament adapted for the reinforcement of elastomer or for thermoplastic products has a carbon content ranging up to 0.20 per cent by weight. The steel filament is provided with a coating promoting the adhesion with elastomer or thermoplastic products. The steel filament is drawn until a final diameter of less than 0.60 mm and a final tensile strength of more than 1200 MPa. Intermediate heat treatments are avoided so that the carbon footprint of the steel filament is substantially reduced.Type: ApplicationFiled: February 25, 2009Publication date: January 6, 2011Applicant: NV BEKAERT SAInventors: Javier Del Rio Rodriguez, Dirk Meersschaut
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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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Patent number: 7228681Abstract: A steel cord adapted for the reinforcement of elastomers includes: a core steel filament with a diameter dc and coated with a polymer, six intermediate steel filaments with a diameter di smaller than or equal to dc, the intermediate steel filaments being twisted around the core steel filament, ten to eleven outer steel filaments with a diameter do, smaller than or equal to di wherein these outer steel filaments are twisted around the intermediate steel filaments, and the outer steel filaments are preformed in order to allow rubber penetration inside the cord. The core steel filament, the intermediate steel filaments, and the outer steel filaments all have a tensile strength of at least 2600 MPa. The cord has an outer diameter D according to the following formula: D?dc+2×di+2×do+0.1 mm, wherein all diameters are expressed in millimeters (mm).Type: GrantFiled: June 25, 2004Date of Patent: June 12, 2007Assignee: NV Bekaert SAInventors: Dirk Meersschaut, Stijn Vanneste, Hans Cauwels
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Patent number: 7152391Abstract: A steel cord comprises a metal core strand and adjacent layer of steel elements. Between the metal core strand and adjacent layer of steel elements, a polymer layer with a minimum thickness of more than 0.02 mm is provided. These steel cords are to be used to reinforce off-the-road tires or conveyor belts.Type: GrantFiled: November 20, 2001Date of Patent: December 26, 2006Assignee: NV Bekaert SAInventors: Stijn Vanneste, Steven Wostyn, Niko De Rore, Dirk Meersschaut
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Publication number: 20060191619Abstract: A steel cord (10) adapted for the reinforcement of elastomers comprises: a core steel filament (12) with a core steel filament diameter dc and coated with a polymer (14); six intermediate steel filaments (16) with an intermediate steel filament diameter di smaller than or equal to the core steel filament diameter dc; these intermediate steel filaments (16) are twisted around the core steel filament (12); ten or eleven outer steel filaments (18) with an outer steel filament diameter do smaller than or equal to the intermediate steel filament diameter dl; these outer steel filaments (18) are twisted around the intermediate steel filaments (16), the outer steel filaments (18) are preformed in order to allow rubber penetration inside the core (10). The core steel filament (12), the intermediate steel filaments (16) and the outer steel filaments (18) all have a tensile strength at least 2600 MPa. The cord (10) has an outer diameter D according to following formula: D?dc+2×di+2×do+0.Type: ApplicationFiled: June 25, 2004Publication date: August 31, 2006Inventors: Dirk Meersschaut, Stijn Vanneste, Hans Cauwels
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Patent number: 7089723Abstract: A steel cord comprises a core with one or more core steel filaments and further comprises a first layer of intermediate steel filaments twisted around the core, and a second layer of second steel filaments twisted around the first layer. At least one of the intermediate steel filaments is individually coated by means of a polymer with a minimum thickness of 0.010 mm. The polymer reduces the fretting between the coated intermediate steel filaments and the other steel filaments and makes the steel cord suitable for reinforcement of carcass plies of a tire.Type: GrantFiled: September 9, 2002Date of Patent: August 15, 2006Assignee: NV Bekaert SAInventors: Stijn Vanneste, Steven Wostyn, Dirk Meersschaut
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Patent number: 6904744Abstract: Steel cord includes a first group and a second group. The second group is helically twisted around the first group with a cord twisting step. The first group includes a first number of first steel filaments. The first number ranges between three and eight. The second group comprises a second number of second steel filaments. The second number is equal to or greater than the first number. The first filaments having a twist step greater than 300 mm. At least one of the second filaments is polygonally performed in order to allow rubber penetration.Type: GrantFiled: October 14, 2003Date of Patent: June 14, 2005Assignee: N.V. Bekaert S.A.Inventors: Hans Cauwels, Dirk Meersschaut, Stijn Vanneste
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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: 20050037197Abstract: A steel cord (10) comprises a core with one or more core steel filaments (12) and further comprises a first layer of intermediate steel filaments (14) twisted around the core, and a second layer of second steel filaments (18) twisted around the first layer. At least one of the intermediate steel filaments is individually coated by means of a polymer (16) with a minimum thickness of 0.010 mm. The polymer (16) reduces the fretting between the coated intermediate steel filaments (14) and the other steel filaments and makes the steel cord suitable for reinforcement of carcass plies of a tire.Type: ApplicationFiled: September 9, 2002Publication date: February 17, 2005Inventors: Stijn Vanneste, Steven Wostyn, Dirk Meersschaut
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Publication number: 20040134181Abstract: Steel cord includes a first group and a second group. The second group is helically twisted around the first group with a cord twisting step. The first group includes a first number of first steel filaments. The first number ranges between three and eight. The second group comprises a second number of second steel filaments. The second number is equal to or greater than the first number. The first filaments having a twist step greater than 300 mm. At least one of the second filaments is polygonally performed in order to allow rubber penetration.Type: ApplicationFiled: October 14, 2003Publication date: July 15, 2004Inventors: Hans Cauwels, Dirk Meersschaut, Stijn Vanneste
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Publication number: 20040099323Abstract: 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: ApplicationFiled: November 21, 2002Publication date: May 27, 2004Inventors: Luc Bourgrois, Paul Dambre, Dirk Meersschaut, Luc Ravelingien
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Publication number: 20040045652Abstract: A steel cord according to the invention comprises a metal core strand (11) and adjacent layer of steel elements (13). Between metal core strand (11) and adjacent layer of steel elements (13), a polymer layer (16) with a minimum thickness of more than 0.02 mm is provided. These steel cords are to be used to reinforce off-the-road tires or conveyor belts.Type: ApplicationFiled: May 22, 2003Publication date: March 11, 2004Inventors: Stijn Vanneste, Steven Wostyn, Niko De Rore, Dirk Meersschaut
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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: 6475636Abstract: A steel cord particularly adapted for reinforcement of a protection ply in a tire has under compression in rubber a deformation Wk at instability of at least 3% and is stress-relieved so that its total elongation at rupture in rubber exceeds 3.5%. The steel cord comprises pearlite filaments.Type: GrantFiled: March 28, 2000Date of Patent: November 5, 2002Assignee: N.V. Bekaert S.A.Inventors: Urbain D'Haene, Marc Eggermont, Yvan Lippens, Dirk Meersschaut
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Publication number: 20020150786Abstract: A steel cord (10) particularly adapted for reinforcement of a protection ply in a tire has under compression in rubber a deformation Wk at instability of at least 3% and is stress-relieved so that its total elongation at rupture in rubber exceeds 3.5%. The steel cord (10) comprises steel filaments (12) having a pearlitic structure.Type: ApplicationFiled: March 28, 2000Publication date: October 17, 2002Inventors: URBAIN D'HAENE, MARC EGGERMONT, YVAN LIPPENS, DIRK MEERSSCHAUT
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Patent number: 6228188Abstract: A process of patenting at least one steel wire (10) with a diameter less than 2.8 mm. The cooling is alternatingly done by film boiling in water (14, 16) during one or more water cooling periods and in air during one or more air cooling periods. A water cooling period immediately follows an air cooling period and vice versa. The number of the water cooling periods, the number of the air cooling periods, the length of each water cooling period are so chosen so as to avoid the formation of martensite or bainite.Type: GrantFiled: July 22, 1994Date of Patent: May 8, 2001Assignee: N.V. Bekaert S.A.Inventors: Dirk Meersschaut, Godfried Vanneste
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Patent number: 5843583Abstract: A steel cord adapted for the reinforcement of an elastomer comprises steel filaments of a pearlitic structure. The steel cord has a plastic and elastic elongation at break of x % and a plastic and elastic elongation capability in the vulcanized elastomer of y %, the values x and y fulfilling following equation:y-0.50.ltoreq.x.ltoreq.y+0.50,which means that the total elongation at break does not fall down considerably after embedding the steel cord into an elastomer.Type: GrantFiled: January 15, 1997Date of Patent: December 1, 1998Assignee: N.V. Bekaert S.A.Inventors: Urbain D'Haene, Marc Eggermont, Dirk Meersschaut