Patents by Inventor M'hand Nait Oukhedou
M'hand Nait Oukhedou 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: 9080629Abstract: A shock absorber includes a piston disposed within a pressure tube. A valve assembly is attached to the piston. The valve assembly defines a first fluid flow through an always open fluid passage; a second fluid flow due to elastic deformation of a valve disc of the piston assembly; and a third fluid flow due to movement of the entire valve disc away from the piston. In one embodiment, the valve assembly is designed to be pre-assembled at an off-line and/or off-site location.Type: GrantFiled: September 7, 2012Date of Patent: July 14, 2015Assignee: Tenneco Automotive Operating Company Inc.Inventors: M'Hand Nait Oukhedou, Gert Mangelschots, Ward Opdekamp, Werner Bosmans
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Patent number: 8701846Abstract: A shock absorber includes a hydraulic compression stop. The hydraulic stop includes a pressure tube surrounding the pressure tube of the shock absorber and a piston in hydraulic communication with the interior of the pressure tube. The piston can be disposed within the pressure tube and can be attached to the pressure tube or to the shock absorber. The hydraulic stop can also include a hydraulic fluid chamber and the piston can be disposed within the hydraulic fluid chamber.Type: GrantFiled: August 26, 2009Date of Patent: April 22, 2014Assignee: Tenneco Automotive Operating Company IncInventors: Koen Reybrouck, M'Hand Nait Oukhedou, Simon Anne de Molina
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Publication number: 20140069753Abstract: A shock absorber includes a piston disposed within a pressure tube. A valve assembly is attached to the piston. The valve assembly defines a first fluid flow through an always open fluid passage; a second fluid flow due to elastic deformation of a valve disc of the piston assembly; and a third fluid flow due to movement of the entire valve disc away from the piston. In one embodiment, the valve assembly is designed to be pre-assembled at an off-line and/or off-site location.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INCInventors: M'Hand Nait Oukhedou, Gert Mangelschots, Ward Opdekamp, Werner Bosmans
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Patent number: 8627933Abstract: A shock absorber includes a two stage valve assembly that has two valve discs. The second valve disc defines the first stage at lower valve pressures and the first valve disc defines the second stage at higher valve pressures. The two valve discs can be defined by a single piece component or they can be separate components. The second valve disc can permit fluid flow by deflection of the second valve disc or by movement of the entire second valve disc. The two stage valve assembly can be incorporated into the piston assembly of the shock absorber and/or the two stage valve assembly can be incorporated into a base valve assembly.Type: GrantFiled: June 1, 2010Date of Patent: January 14, 2014Assignee: Tenneco Automotive Operating Company Inc.Inventors: Kristoff Six, M'Hand Nait Oukhedou, Ronny Vanbrabant, Frank Gommans
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Patent number: 8511444Abstract: A shock absorber includes an external control valve which controls the damping characteristics of the shock absorber. The external control valve controls the flow of fluid between the lower working chamber of the shock absorber and the reservoir chamber and between the upper working chamber of the shock absorber. The damping characteristics are dependent on the amount of current being applied to a solenoid valve which controls a fluid valve assembly. A soft fluid valve assembly is disposed in series with the fluid valve assembly to allow for the tuning of the damping forces at low current levels provided to the solenoid valve.Type: GrantFiled: May 22, 2012Date of Patent: August 20, 2013Assignee: Tenneco Automotive Operating Company Inc.Inventors: Gert Mangelschots, David Holiviers, Gert Vanhees, Patrick Vanmechelen, Sjaak Schel, M'hand Nait Oukhedou
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Publication number: 20120228072Abstract: A shock absorber includes an external control valve which controls the damping characteristics of the shock absorber. The external control valve controls the flow of fluid between the lower working chamber of the shock absorber and the reservoir chamber and between the upper working chamber of the shock absorber. The damping characteristics are dependent on the amount of current being applied to a solenoid valve which controls a fluid valve assembly. A soft fluid valve assembly is disposed in series with the fluid valve assembly to allow for the tuning of the damping forces at low current levels provided to the solenoid valve.Type: ApplicationFiled: May 22, 2012Publication date: September 13, 2012Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INCInventors: Gert Mangelschots, David Holiviers, Gert Vanhees, Patrick Vanmechelen, Sjaak Schel, M'hand Nait Oukhedou
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Patent number: 8256586Abstract: A shock absorber includes an external control valve which controls the damping characteristics of the shock absorber. The external control valve controls the flow of fluid between the lower working chamber of the shock absorber and the reservoir chamber and between the upper working chamber of the shock absorber. The damping characteristics are dependent on the amount of current being applied to a solenoid valve which controls a fluid valve assembly. A soft fluid valve assembly is disposed in series with the fluid valve assembly to allow for the tuning of the damping forces at low current levels provided to the solenoid valve.Type: GrantFiled: February 24, 2011Date of Patent: September 4, 2012Assignee: Tenneco Automotive Operating Company Inc.Inventors: Gert Mangelschots, David Holiviers, Gert Vanhees, Patrick Vanmechelen, Sjaak Schel, M'hand Nait Oukhedou
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Publication number: 20110290604Abstract: A shock absorber includes a two stage valve assembly that has two valve discs. The second valve disc defines the first stage at lower valve pressures and the first valve disc defines the second stage at higher valve pressures. The two valve discs can be defined by a single piece component or they can be separate components. The second valve disc can permit fluid flow by deflection of the second valve disc or by movement of the entire second valve disc. The two stage valve assembly can be incorporated into the piston assembly of the shock absorber and/or the two stage valve assembly can be incorporated into a base valve assembly.Type: ApplicationFiled: June 1, 2010Publication date: December 1, 2011Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INC.Inventors: Kristoff Six, M'Hand Nait Oukhedou, Ronny Vanbrabant, Frank Gommans
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Publication number: 20110139557Abstract: A shock absorber includes an external control valve which controls the damping characteristics of the shock absorber. The external control valve controls the flow of fluid between the lower working chamber of the shock absorber and the reservoir chamber and between the upper working chamber of the shock absorber. The damping characteristics are dependent on the amount of current being applied to a solenoid valve which controls a fluid valve assembly. A soft fluid valve assembly is disposed in series with the fluid valve assembly to allow for the tuning of the damping forces at low current levels provided to the solenoid valve.Type: ApplicationFiled: February 24, 2011Publication date: June 16, 2011Applicant: Tenneco Automotive Operating Company Inc.Inventors: Gert Mangelschots, David Holiviers, Gert Vanhees, Patrick Vanmechelen, Sjaak Schel, M'hand Nait Oukhedou
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Patent number: 7926632Abstract: A shock absorber includes an external control valve which controls the damping characteristics of the shock absorber. The external control valve controls the flow of fluid between the lower working chamber of the shock absorber and the reservoir chamber and between the upper working chamber of the shock absorber. The damping characteristics are dependent on the amount of current being applied to a solenoid valve which controls a fluid valve assembly. A soft fluid valve assembly is disposed in series with the fluid valve assembly to allow for the tuning of the damping forces at low current levels provided to the solenoid valve.Type: GrantFiled: April 16, 2007Date of Patent: April 19, 2011Assignee: Tenneco Automotive Operating Company Inc.Inventors: Gert Mangelschots, David Holiviers, Gert Vanhees, Patrick Vanmechelen, Sjaak Schel, M'hand Nait Oukhedou
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Publication number: 20110048880Abstract: A shock absorber includes a hydraulic compression stop. The hydraulic stop includes a pressure tube surrounding the pressure tube of the shock absorber and a piston in hydraulic communication with the interior of the pressure tube. The piston can be disposed within the pressure tube and can be attached to the pressure tube or to the shock absorber. The hydraulic stop can also include a hydraulic fluid chamber and the piston can be disposed within the hydraulic fluid chamber.Type: ApplicationFiled: August 26, 2009Publication date: March 3, 2011Applicant: TENNECO AUTOMOTIVE OPERATING COMPANY INC.Inventors: Koen Reybrouck, M'Hand Nait Oukhedou, Simon Anne de Molina