Patents by Inventor Gunther Handke
Gunther Handke 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: 9360111Abstract: A piston-cylinder unit includes a cylinder having a closure body at the end. The closure body has a sleeve body which is fixedly connected on one side to the closure body and which is fastened to the cylinder. The sleeve body has a base which supports an operating pressure in the cylinder in direction of the closure body.Type: GrantFiled: April 18, 2013Date of Patent: June 7, 2016Assignee: ZF Friedrichshafen AGInventors: Manfred Schuler, Günther Handke, Bernd Zeissner, Bernhard Weingärtner
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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: 8800734Abstract: Vibration damper includes a tubular body to which an external part, which acts as a stop, is fastened. A component such as a steering knuckle, which is supported against the stop, is also fastened to the tubular body. When a normal load on the component is exceeded, a deformation area allows the component to shift on the tubular body.Type: GrantFiled: February 17, 2006Date of Patent: August 12, 2014Assignee: ZF Friedrichshafen AGInventors: Günther Handke, Dieter Lutz, Janine Bull
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Patent number: 8794265Abstract: A damping valve arrangement for a vibration damper includes a damping valve body, which has at least one through-flow opening for the damping medium, and at least one valve disk which at least partly covers the through-flow openings under the influence of a closing force. The damping valve arrangement includes at least one spring element which has at least one supporting portion axially supported at another structural component part of the damping valve arrangement, and at least one spring portion disposed at a distance from the supporting portion and which introduces a spring force into the valve disk at least indirectly, wherein the spring force of the spring element is directed counter to the closing force acting on the valve disk, and wherein the spring force of the spring element is less than the closing force of the valve disk.Type: GrantFiled: November 22, 2011Date of Patent: August 5, 2014Assignee: ZF Friedrichshafen AGInventors: Günther Handke, Klaus Lieblein, Thomas Frank
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Publication number: 20140027220Abstract: A separating piston for hydropneumatic units, separating a cylinder interior which is filled with liquid in a cylinder from a gas-filled compensation chamber or spring space in a sealing manner and which is formed of two parts and has a radially circumferential seal groove in which is arranged an annular seal which can tightly contact the inner wall of the cylinder. One of the two separating piston parts is a guide part which has characteristics conducive to sliding and which slides at the inner wall of the cylinder, and the other separating piston part is a retaining part which is connected to the guide part. The guide part is a stamped and/or bent sheet metal part which is coated with a guide or running layer at least on its guide area sliding along the inner wall of the cylinder.Type: ApplicationFiled: July 25, 2013Publication date: January 30, 2014Inventors: Günther HANDKE, Thomas Thein, Hassan Asadi
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Publication number: 20130276625Abstract: A The piston-cylinder unit includes a cylinder having a closure body at the end. The closure body has a sleeve body which is fixedly connected on one side to the closure body and which is fastened to the cylinder. The sleeve body has a base which supports an operating pressure in the cylinder in direction of the closure body.Type: ApplicationFiled: April 18, 2013Publication date: October 24, 2013Inventors: Manfred SCHULER, Günther HANDKE, Bernd ZEISSNER, Bernhard WEINGÄRTNER
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Patent number: 8403116Abstract: A protective pipe for a piston-cylinder unit comprises a pipe body having at one end a bottleneck-shaped base which is axially and radially supported at least indirectly at a piston rod of the piston-cylinder unit. A surface region of the bottleneck-shaped base has an accumulation of material which increases radially inward starting from its outer edge.Type: GrantFiled: August 13, 2008Date of Patent: March 26, 2013Assignee: ZF Friedrichshafen AGInventors: Günther Handke, Alexander Miller
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Patent number: 8336686Abstract: A mount for supporting a vibration damper in a vehicle has a cap provided with an anti-twist surface and configured to extend through a recessed support surface of the vehicle. The mount is provided with a retainer operable to couple the anti-twist surface to the support surface so as to suspend the vibration damper on the vehicle before and independently from fastening the vibration damper to the vehicle.Type: GrantFiled: August 17, 2005Date of Patent: December 25, 2012Assignees: Ford-Werke GmbH, ZF Friedrichshafen AGInventors: Günther Handke, Markus Schulz
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Publication number: 20120138837Abstract: A damping valve arrangement for a vibration damper includes a damping valve body, which has at least one through-flow opening for the damping medium, and at least one valve disk which at least partly covers the through-flow openings under the influence of a closing force. The damping valve arrangement includes at least one spring element which has at least one supporting portion axially supported at another structural component part of the damping valve arrangement, and at least one spring portion disposed at a distance from the supporting portion and which introduces a spring force into the valve disk at least indirectly, wherein the spring force of the spring element is directed counter to the closing force acting on the valve disk, and wherein the spring force of the spring element is less than the closing force of the valve disk.Type: ApplicationFiled: November 22, 2011Publication date: June 7, 2012Applicant: ZF Friedrichshafen AGInventors: Günther HANDKE, Klaus LIEBLEIN, Thomas FRANK
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Patent number: 8109491Abstract: A vibration damper, comprising a damping medium-filled cylinder, in which a piston rod is guided with freedom of axial movement, where, inside a working space in the cylinder, a stop spring in the form of a circular ring is located, which, after the piston rod has reached a defined stroke position, is compressed between a stop surface on the piston rod side and an end surface forming an axial boundary of the working space, and where the stop spring also forms a boundary of a radially inner space, which is connected to the working space outside the stop spring by means of at least one radial channel. The stop surface on the piston rod side and/or the axially limiting end surface is formed by a rigid body and is provided with at least one radial channel, which extends from the radially inner space to the radially outer working space, “inner” and “outer” being defined with respect to the stop spring.Type: GrantFiled: December 15, 2006Date of Patent: February 7, 2012Assignee: ZF FriedrichshafenInventors: Günther Handke, Hans Gonschorrek
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Publication number: 20100213655Abstract: A protective pipe for a piston-cylinder unit comprises a pipe body having at one end a bottleneck-shaped base which is axially and radially supported at least indirectly at a piston rod of the piston-cylinder unit. A surface region of the bottleneck-shaped base has an accumulation of material which increases radially inward starting from its outer edge.Type: ApplicationFiled: August 13, 2008Publication date: August 26, 2010Inventors: Günther Handke, Alexander Miller
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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: 20090050426Abstract: The invention relates to an vibration damper (1) comprising a cylinder (15) on which a protection against stones (3) is arranged in a fixed manner in the form of a tubular part (5). Said tubular part (5) is supported by means of holding tongues (11a;11b) on a connection element (13) in which the holding tongues (11a;11b) are actively connected to the tubular part (5) by means of at least one catch connection. Each holding tongue (11a;11b) represents a separate component and comprises catch means (7a;7b) which enter into the catch connection with the tubular part (5).Type: ApplicationFiled: December 16, 2006Publication date: February 26, 2009Applicant: ZF Friedrichshafen AGInventor: Gunther Handke
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Patent number: 7473036Abstract: A bearing housing with at least one bearing for the vibration damper, where the bearing has a bearing input part and a bearing output part, which are able to rotate with respect to each other during operation. The bearing has an assembly lock, which prevents the bearing input part from rotating with respect to the bearing output part during installation in a vehicle.Type: GrantFiled: September 7, 2004Date of Patent: January 6, 2009Assignee: ZF Friedrichshafen AGInventor: Günther Handke
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Patent number: 7364177Abstract: A suspension strut top mount having a bearing connection onto a vehicle body and a spring retainer for a vehicle support. The spring retainer is set obliquely relative to a central axis of a suspension strut. The suspension strut top mount further has an obliquely set bearing arranged between the bearing connection and the spring retainer and has a bearing input part, which is associated with the bearing connection, and a bearing output part, which is associated with the spring retainer. A stop buffer, which is arranged concentrically to the central axis of the suspension strut, comes into contact on a cylinder-end surface of the suspension strut in a defined spring compression position. The stop buffer has an effective connection to the bearing output part of the bearing.Type: GrantFiled: April 29, 2005Date of Patent: April 29, 2008Assignee: ZF Friedrichshafen AGInventors: Günther Handke, Markus Schulz
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Publication number: 20070138721Abstract: A vibration damper, comprising a damping medium-filled cylinder, in which a piston rod is guided with freedom of axial movement, where, inside a working space in the cylinder, a stop spring in the form of a circular ring is located, which, after the piston rod has reached a defined stroke position, is compressed between a stop surface on the piston rod side and an end surface forming an axial boundary of the working space, and where the stop spring also forms a boundary of a radially inner space, which is connected to the working space outside the stop spring by means of at least one radial channel. The stop surface on the piston rod side and/or the axially limiting end surface is formed by a rigid body and is provided with at least one radial channel, which extends from the radially inner space to the radially outer working space, “inner” and “outer” being defined with respect to the stop spring.Type: ApplicationFiled: December 15, 2006Publication date: June 21, 2007Inventors: Gunther Handke, Hans Gonschorrek
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Publication number: 20060198693Abstract: Joint lug for a piston-cylinder unit includes a tubular body which is formed as one piece with a right-angle web, in which a through-opening for a fastening connector is provided. The right-angle web includes a support web having at least one tab which is supported against the tubular body.Type: ApplicationFiled: March 1, 2006Publication date: September 7, 2006Applicant: ZF Friedrichshafen AGInventors: Gunther Handke, Janine Bull
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Publication number: 20060196742Abstract: Vibration damper includes a tubular body to which an external part, which acts as a stop, is fastened. A component such as a steering knuckle, which is supported against the stop, is also fastened to the tubular body. When a normal load on the component is exceeded, a deformation area allows the component to shift on the tubular body.Type: ApplicationFiled: February 17, 2006Publication date: September 7, 2006Applicant: ZF Friedrichshafen AGInventors: Gunther Handke, Dieter Lutz, Janine Bull
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Patent number: 7077248Abstract: Suspension strut unit comprising a connector bearing for piston rod of the suspension strut unit, a spring plate for a vehicle spring, and a first has a bearing with a bearing input part on the spring plate side and a bearing output part on the connector bearing side, which bearing allows relative rotational movement between the vehicle spring and the connector bearing of the piston rod. After the piston rod has traveled inward a certain distance, the cylinder is supported against the connector bearing by way of a stop buffer. A second bearing allows relative rotational movement between the connector bearing and the cylinder when the stop buffer is active; the second bearing is located functionally between the stop buffer and the connector bearing, and a functional separation is present between the bearing input part for the spring plate and the second bearing.Type: GrantFiled: February 24, 2004Date of Patent: July 18, 2006Assignee: ZF Sachs AGInventors: Günther Handke, Manfred Schuler, Wolfgang Breun, Ali Dogan, Stephan Zuber