Patents by Inventor Josef Renn
Josef Renn 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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Publication number: 20230356557Abstract: A hydraulic fluid supply system, in particular for a suspension system, having a pump for supplying a connection of the hydraulic fluid supply system for a connectable actuator. Starting from the pump, a minimum-pressure-maintaining valve having a control connection for the connectable actuator, is operatively provided upstream of the connection.Type: ApplicationFiled: November 25, 2020Publication date: November 9, 2023Inventor: Josef RENN
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Patent number: 10632813Abstract: Adjustable spring support comprising a spring plate which is axially adjustable by an annular actuator, wherein the actuator is supplied with pressure medium via a pressure medium supply system, wherein the annular actuator has a pressure medium connection to the pressure medium supply system, and the housing of the actuator is connected directly to a housing of the pressure medium supply system.Type: GrantFiled: April 12, 2016Date of Patent: April 28, 2020Assignee: ZF Friedrichshafen AGInventors: Andreas Väth, Josef Renn, Tom Schneider, Jan Rossberg
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Patent number: 10532625Abstract: Adjustable spring support includes a first spring plate and a second spring plate, wherein at least one of the spring plates is axially adjustable relative to the other spring plate by an actuator, wherein the actuator is supplied with pressure medium via a pump which is driven by a motor and which is connected to a supply receptacle, wherein the motor, the pump and the supply receptacle form a constructional unit, and the constructional unit provides a cylindrical surface of the actuator.Type: GrantFiled: April 12, 2016Date of Patent: January 14, 2020Assignee: ZF Friedrichshafen AGInventors: Josef Renn, Alexander Schwarz, Hendrik Marquar, Tom Schneider, Jan Rossberg
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Publication number: 20190176558Abstract: An adjustable spring carrier includes a spring plate. At least one spring plate is axially displaceable by an actuator and is fixed with respect to rotation in circumferential direction relative to a longitudinal axis of the spring carrier. A housing for a drive unit of the actuator and a spring plate abutment surface are connected to one another, and the housing is driven by the actuator for the axial movement of the spring plate.Type: ApplicationFiled: January 16, 2017Publication date: June 13, 2019Inventors: Josef RENN, Ralf FAMBACH, Jan ROSSBERG, Tom SCHNEIDER
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Publication number: 20180201084Abstract: Adjustable spring support comprising a spring plate which is axially adjustable by means of an annular actuator, wherein the actuator is supplied with pressure medium via a pressure medium supply system, wherein adjustable spring support comprising a spring plate which is axially adjustable by means of an annular actuator, wherein the actuator is supplied with pressure medium via a pressure medium supply system, wherein the annular actuator has a pressure medium connection to the pressure medium supply system, and the housing thereof is connected directly to a housing of the pressure medium supply system.Type: ApplicationFiled: April 12, 2016Publication date: July 19, 2018Inventors: Andreas VÄTH, Josef RENN, Tom SCHNEIDER, Jan ROSSBERG
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Publication number: 20180147909Abstract: Adjustable spring support includes a first spring plate and a second spring plate, wherein at least one of the spring plates is axially adjustable relative to the other spring plate by an actuator, wherein the actuator is supplied with pressure medium via a pump which is driven by a motor and which is connected to a supply receptacle, wherein the motor, the pump and the supply receptacle form a constructional unit, and the constructional unit provides a cylindrical surface of the actuator.Type: ApplicationFiled: April 12, 2016Publication date: May 31, 2018Inventors: Josef RENN, Alexander SCHWARZ, Hendrik MARQUAR, Tom SCHNEIDER, Jan ROSSBERG
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Publication number: 20170008558Abstract: An arrangement for connecting chassis parts, in particular a screw connection, between a structure made of a fiber-plastic composite and a metallic load-introducing element, designed as a traction member. The structure is double-walled having a first wall and at least a second wall spaced from the first wall. The first and second walls have each coaxially positioned recesses and a spacer, having a through hole, is positioned between the first and second walls. The load-introducing element extends through at least one recess and the hole of the spacer. The load-introducing element has a holding part assigned to it, and the load-introducing element and the holding part are connected to one another by a connecting segment. The connecting segment and/or the holding part essentially pass through the first and/or the second wall.Type: ApplicationFiled: January 12, 2015Publication date: January 12, 2017Inventors: Sven Philip KRÜGER, Andreas VÄTH, Hendrik MARQUAR, Josef RENN, Sven GREGER, Edmont HOFMANN
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Publication number: 20150354661Abstract: A cylinder unit includes a cylinder which is closed at one end by a base, wherein an adhesive joint is formed between the cylinder and the base, characterized in that the adhesive joining of the base is carried out in an annular space filled with adhesive, wherein the cylinder or the base is wetted with adhesive in the annular space at an inner wall and at an outer wall so that there are two gluing surfaces separated by the wall.Type: ApplicationFiled: January 9, 2014Publication date: December 10, 2015Inventors: Robert PRADEL, Josef RENN, Andreas SIEBER, Klaus SCHREINER, Wolfgang HERTZ, Dirk BECKER, Markus SCHÄFER
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Publication number: 20150069688Abstract: A vibration damper for a motor vehicle includes at least one cylinder tube with a longitudinal extension axis and a support spring, wherein the support spring has a first end portion and a second end portion, the support spring surrounds the cylinder tube in circumferential direction and is axially supported by the first end portion indirectly at a supporting device of the motor vehicle with respect to the longitudinal extension axis of the cylinder tube, and wherein the support spring is axially supported by its second end portion at the cylinder tube of the vibration damper. The cylinder tube has a spring disk which is formed integral with the cylinder tube, is formed out of the cylinder tube, and has a supporting surface for an end coil of the support spring.Type: ApplicationFiled: September 8, 2014Publication date: March 12, 2015Inventors: Manfred SCHULER, Andreas HARTUNG, karin SUNDERMANN, Josef Renn, Günther HANDKE, Manuel RUSS, Peter HEUSINGER, Peter MALIK
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Patent number: 8919753Abstract: A spring plate, especially for a MacPherson strut unit, having an axial support surface for the final turn of a helical spring. The helical spring is centered by radial centering surfaces in the area of the circumferential contour of the final turn. The centering surface is divided into individual, partial centering surfaces, which come to rest against the circumferential contour of the helical spring.Type: GrantFiled: September 13, 2005Date of Patent: December 30, 2014Assignee: ZH Friedrichshafen AGInventors: Bruno Deigner, Günther Handke, Frank Hassmann, Jörg Hermes, Joachim Koberstein, Alexander Miller, Jörg Pagel, Josef Renn, Manfred Schuler, Klaus Stretz, Andreas Zietsch, Gottfried Zimmermann
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Patent number: 8910759Abstract: A vibration damper including a cylinder with a cylinder-side connection member. The at least one mounted component is fastened to the cylinder by a material bond. The cylinder and the mounted component are made of plastic. The mounted component and/or the cylinder are based on at least one ready-prepared semi-finished product that forms the surface of the vibration damper on at least one body side in the final state. Plastic supplemental volume fractions determine the finished body contour.Type: GrantFiled: September 9, 2010Date of Patent: December 16, 2014Assignees: ZF Friedrichshafen AG, Leichtbau-Zentrum Sachsen GmbHInventors: Hendrik Marquar, Manfred Schuler, Josef Renn, Klaus Stretz, Karin Sundermann, Michael Zutzmann, Werner Hufenbach, Martin Lepper, Jens Werner, Enrico Ladusch, Stefan Effmert
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Patent number: 8297600Abstract: A plastic spring having a corrugated tubular body with connection surfaces at its ends for transmitting force between two structural component parts which are movable relative to one another. A connection surface of the plastic spring is constructed as a tubular body which engages in a cup element of one of the supporting structural component parts. The cup element can be filled with a displacement mass, and the tubular body accordingly carries out a displacing movement within the cup element for axially adjusting the preloading of the plastic spring.Type: GrantFiled: September 9, 2010Date of Patent: October 30, 2012Assignees: ZF Friedrichshafen AG, Leichtbau-Zentrum Sachsen GmbHInventors: Hendrik Marquar, Manfred Schuler, Josef Renn, Klaus Stretz, Karin Sundermann, Michael Zutzmann, Werner Hufenbach, Martin Lepper, Jens Werner, Christian Köhler
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Publication number: 20110215209Abstract: A supporting tube for a vibration damper including an axial supporting surface on which rests an outer cylinder of the vibration damper. A fixing cap which holds a second axial supporting surface for securing the cylinder against loading in the opposing direction. The fixing cap is connected to the supporting tube by positive engagement, and separate locking elements for both parts are arranged between the fixing cap and the supporting tube, which locking elements position the outer cylinder relative to the supporting tube.Type: ApplicationFiled: September 9, 2010Publication date: September 8, 2011Applicant: ZF Friedrichshafen AGInventors: Hendrik Marquar, Manfred Schuler, Josef Renn, Klaus Stretz, Karin Sundermann, Michael Zutzmann
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Patent number: 7992693Abstract: Presented is a vibration damper that includes an outer cylinder with a lateral surface, a pin-shaped fastening element that includes a stop surface, and a mounting coupled to the lateral surface. The mounting defines a through-hole that is configured to receive the pin-shaped fastening element and extends circumferentially with respect to the lateral surface. The mounting includes a formation that extends in a radial direction with respect to the cylinder. The formation cooperates with the outer cylinder to form a socket for the stop surface. The stop surface rests against the mounting in an axial direction of the pin-shaped fastening element.Type: GrantFiled: August 3, 2007Date of Patent: August 9, 2011Assignee: ZF Friedrichshafen AGInventors: Christian Böttger, Josef Renn, Jörg Pagel, Klaus Stretz
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Publication number: 20110057369Abstract: A plastic spring having a corrugated tubular body with connection surfaces at its ends for transmitting force between two structural component parts which are movable relative to one another. A connection surface of the plastic spring is constructed as a tubular body which engages in a cup element of one of the supporting structural component parts. The cup element can be filled with a displacement mass, and the tubular body accordingly carries out a displacing movement within the cup element for axially adjusting the preloading of the plastic spring.Type: ApplicationFiled: September 9, 2010Publication date: March 10, 2011Applicants: ZF Friedrichshafen AG, Leichtbau-Zentrum Sachsen GmbHInventors: Hendrik MARQUAR, Manfred SCHULER, Josef RENN, Klaus STRETZ, Karin SUNDERMANN, Michael ZUTZMANN, Werner HUFENBACH, Martin LEPPER, Jens WERNER, Christian KÖHLER
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Publication number: 20110056785Abstract: A vibration damper including a cylinder with a cylinder-side connection member. The at least one mounted component is fastened to the cylinder by a material bond. The cylinder and the mounted component are made of plastic. The mounted component and/or the cylinder are based on at least one ready-prepared semi-finished product that forms the surface of the vibration damper on at least one body side in the final state. Plastic supplemental volume fractions determine the finished body contour.Type: ApplicationFiled: September 9, 2010Publication date: March 10, 2011Applicants: ZF Friedrichshafen AG, Leichtbau-Zentrum Sachsen GmbHInventors: Hendrik MARQUAR, Manfred Schuler, Josef Renn, Klaus Stretz, Karin Sundermann, Michael Zutzmann, Werner Hufenbach, Martin Lepper, Jens Werner, Enrico Ladusch, Stefan Effmert
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Publication number: 20100111596Abstract: A cylinder having an attachment on which a component having an internal taper surface is fixed, wherein in a positive anti-turning connection is in effect between the cylinder, and the taper connection has at least two regions in the circumferential direction having a smaller and a larger taper angle.Type: ApplicationFiled: March 18, 2008Publication date: May 6, 2010Applicant: ZF Friedrichshafen AGInventors: Günther Handke, Manfred Schuler, Klaus Stretz, Josef Renn
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Publication number: 20080029358Abstract: Presented is a vibration damper that includes an outer cylinder that includes a lateral surface, a pin-shaped fastening element that includes a stop surface, and a mounting coupled to the lateral surface. The mounting defines a through-hole that is configured to receive the pin-shaped fastening means and extends circumferentially with respect to the lateral surface. The mounting includes a formation that extends in a radial direction with respect to the cylinder. The formation cooperates with the outer cylinder to form a socket for the stop surface. The stop surface rests against the mounting in an axial direction of the pin-shaped fastening element.Type: ApplicationFiled: August 3, 2007Publication date: February 7, 2008Inventors: Christian Bottger, Josef Renn, Jorg Pagel, Klaus Stretz
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Publication number: 20060061025Abstract: A spring plate, especially for a MacPherson strut unit, having an axial support surface for the final turn of a helical spring. The helical spring is centered by radial centering surfaces in the area of the circumferential contour of the final turn. The centering surface is divided into individual, partial centering surfaces, which come to rest against the circumferential contour of the helical spring.Type: ApplicationFiled: September 13, 2005Publication date: March 23, 2006Inventors: Bruno Deigner, Gunther Handke, Frank Hassmann, Jorg Hermes, Joachim Koberstein, Alexander Miller, Jorg Pagel, Josef Renn, Manfred Schuler, Klaus Stretz, Andreas Zietsch, Gottfried Zimmermann