Patents by Inventor Paul Dambre
Paul Dambre 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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Patent number: 7300706Abstract: A wire for external exposure, i.e. without chemical binding with a polymer or rubber matrix. The wire has a steel core, a nickel sub-coating and a zinc or zinc alloy top coating above the nickel sub-coating. The steel core has a carbon content exceeding 0.20%. The wire is in a work-hardened state by drawing or rolling. The wire has an excellent corrosion resistance and provides an excellent barrier against hydrogen. Preferable uses are wires in off-shore applications.Type: GrantFiled: July 28, 2006Date of Patent: November 27, 2007Assignee: NV Bekaert SAInventors: Ludo Adriaensen, Paul Dambre, Danny Gonnissen, Gilbert Van Loo, Johan Vanbrabant
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Publication number: 20070026253Abstract: A wire for external exposure, i.e. without chemical binding with a polymer or rubber matrix. The wire has a steel core, a nickel sub-coating and a zinc or zinc alloy top coating above the nickel sub-coating. The steel core has a carbon content exceeding 0.20%. The wire is in a work-hardened state by drawing or rolling. The wire has an excellent corrosion resistance and provides an excellent barrier against hydrogen. Preferable uses are wires in off-shore applications.Type: ApplicationFiled: July 28, 2006Publication date: February 1, 2007Inventors: Ludo Adriaensen, Paul Dambre, Danny Gonnissen, Gilbert Loo, Johan Vanbrabant
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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: 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: 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: 5014760Abstract: High strength steel wire for use e.g. in tire reinforcement is treated so as to have a cementite free surface region. This can be achieved by electroplating or other coating methods, or be decarburizing the surface. The wire has increased resistance to hydrogen embrittlement and corrosion fatigue. The wire with its ferrous surface region is then covered with a rubber adherent outer layer of e.g. brass.Type: GrantFiled: January 16, 1987Date of Patent: May 14, 1991Inventors: Martin Bombeke, Paul Dambre
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Patent number: 4952249Abstract: After a last patenting operation at a first diameter d.sub.1 a steel wire is (a) drawn by means of a lubricant to an intermediate work hardened state at an intermediate diameter d.sub.2, (b) coated at said intermediate diameter d.sub.2 and work hardened state with a brass alloy, (c) drawn at said intermediate diameter d.sub.2 and work hardened state to a final diameter d.sub.f. This process may increase the ultimate tensile strength of the steel wire and may reduce the frequency of fractures during the drawing operation. The process also may provide steel wires with an improved adhesion to rubber.Type: GrantFiled: May 9, 1988Date of Patent: August 28, 1990Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4854032Abstract: A method of manufacturing a steel wire with high tensile strength having improved bending and torsional ductility properties useful as a reinforcement wire or cord, especially for rubber products such as tires, comprising providing steel comprising less than 0.015%, preferably less than 0.010%, and most preferably less than 0.008% by weight sulfur and drawing said steel beyond normal drawing limits into a wire having a tensile strength in N/mm.sup.2 of at least 2250-1130 log d where d is the wire diameter in millimeters, and optionally, depositing a covering layer of rubber adherable material such as brass on the drawn wire.Type: GrantFiled: March 15, 1988Date of Patent: August 8, 1989Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4829760Abstract: A steel cord comprises a central bundle of three twisted steel filaments (1) with a diameter d.sub.1 and nine steel filaments twisted around said central bundle with the same twist pitch and twist direction as the central bundle. Three filaments (2) of said nine steel filaments have a diameter d.sub.2 and contact two adjacent steel filaments of the central bundle. Six steel filaments (3) of said nine steel filaments have a diameter d.sub.3 and contact both one steel filament of the central bundle and one steel filament of the three filaments with diameter d.sub.2. The ratio d.sub.2 /d.sub.1 is greater than 1.05 and smaller than 1.16. The raio d.sub.3 /d.sub.1 is greater than-0.205=0.814.times.d.sub.2 /d.sub.1 and smaller than-0.105+0.814=d.sub.2 /d.sub.1.Type: GrantFiled: April 22, 1988Date of Patent: May 16, 1989Assignee: N.B. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4759806Abstract: A process for manufacturing pearlitic steel wire, particularly with fine diameters and for use in reinforcing rubber vehicle tires. The wire is subjected to a patenting treatment before being drawn down to its final diameter, but is held at the transformation temperature for no more tha 5 seconds after transformation has taken place. Such a step renders the wire capable of being subjected to true strains of more than 3.0 and achieving tensile strengths of 3000 Nmm.sup.-2 or more. The wire may be cooled from the transformation temperature via a first stage in which the temperature is reduced to 400.degree. to 450.degree. C. over a period of time not less than 3 seconds.Type: GrantFiled: December 31, 1986Date of Patent: July 26, 1988Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4737392Abstract: Bending and torsional ductility of high tensile reinforcement steel wire or cord, especially for rubber products, such as tires, is improved by taking care that the steel compositions that are currently used for such application, have an extra low sulphur content, i.e. below 0.015%, preferably below 0.010%.Type: GrantFiled: July 17, 1986Date of Patent: April 12, 1988Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4651513Abstract: A steel cord for reinforcing rubber products such as truck tires comprises a plurality of steel wires twisted together to form a multiwire layered cable construction having two or more successive wire layers around a common core. The wires of the outer layer are covered by a rubber adherable coating of, e.g. brass, and the wires (shaded) of the layer inwardly adjacent the surface layer are covered by a corrosion resistant coating, such as zinc or a zinc alloy.Type: GrantFiled: September 24, 1985Date of Patent: March 24, 1987Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4645718Abstract: A rubber adherable ferrous substrate for use in reinforcing vulcanizable elastomeric products includes a cold worked steel wire having a brass alloy coating of specified compact structure on its surface. There is provided also a process for covering a steel wire substrate with a compact alloy coating, in particular a thin brass diffusion coating having a specified permeability.Type: GrantFiled: October 8, 1985Date of Patent: February 24, 1987Assignee: N.V. Bekaert S.A.Inventor: Paul Dambre
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Patent number: 4612792Abstract: In order to improve the fatigue resistance of a cable, particularly a rubber adherable cable for reinforcing rubber articles such as vehicle tires, substantially uniformly distributed residual compressive stress is induced in substantially the complete peripheral zone of the wires making up the cable. The stress may be induced by submitting lengths of the cable to a number of elementary bending-unbending operations in considerably different planes and simultaneously tensioning the cable.Type: GrantFiled: September 26, 1984Date of Patent: September 23, 1986Assignee: N. V. Bekaert S. A.Inventors: Marc De Bondt, Urbain D'Haene, Paul Dambre
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Patent number: 4481996Abstract: In order to improve the fatigue resistance of a cable, particularly a rubber adherable cable for reinforcing rubber articles such as vehicle tires, substantially uniformly distributed residual compressive stress is induced in substantially the complete peripheric zone of the wires making up the cable. The stress may be induced by submitting lengths of the cable to a number of elementary bending--unbending operations in considerably different planes and simultaneously tensioning the cable.Type: GrantFiled: February 4, 1982Date of Patent: November 13, 1984Assignee: N. V. Bekaert S.A.Inventors: Marc De Bondt, Urbain D'Haene, Paul Dambre