Patents by Inventor Dirk Lude
Dirk Lude 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: 8950771Abstract: What is disclosed is a bicycle frame (1) comprising a seat tube (4) in which a saddle pillar (2) for a saddle is at least partially held, wherein the saddle pillar (2) or the main tube (12) thereof is adapted for translatory movement and height-adjustment relative to the bicycle frame (1). In this case, a rotation prevention device and a locking device, in particular a seat device, are fastened on the seat tube (4). Both securing devices act between the seat tube (4) and the main tube (12) in a form-fitting manner. In this case, the device for securing against rotation engages permanently in the main tube and the latching device can engage in, and can be disengaged from, the main tube.Type: GrantFiled: May 31, 2011Date of Patent: February 10, 2015Assignee: B-Labs AGInventors: Andreas Felsl, Jorg Poppe, Dirk Lude
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Publication number: 20140191491Abstract: The invention relates to a suspension fork (1) having at least one positive chamber (31), at least one negative chamber (32) and an adjusting device (40) for adjusting the length of the suspension fork (1), the adjusting device (40) comprising a valve means (50) which is arranged between the at least one positive chamber (31) and the at least one negative chamber (32), and an actuation device (60), characterized in that the actuation device (60) has at least one first position for adjusting a short length of the suspension fork (1) (lowered suspension fork) and at least one second position for adjusting a long length of the suspension fork (1) (extended suspension fork).Type: ApplicationFiled: May 18, 2011Publication date: July 10, 2014Applicant: GUSTAV MAGENWIRTH GMBH & CO KGInventors: Dirk Lüde, Jürgen Beier
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Patent number: 8678415Abstract: A lower leg (1) for a suspension fork has two tubes (2, 3) with, in each case, a receptacle device (4, 5) for receiving a stanchion tube displaceably mounted in the receptacle device. Two stabilizers (6, 7) connect those end regions of the two tubes which are opposite the dropouts of the tubes to one another. The lower leg (1) has a stiffening member (8, 9) which connects the two stabilizers to one another.Type: GrantFiled: March 18, 2013Date of Patent: March 25, 2014Assignee: Gustav Magenwirth GmbH & Co. KGInventors: Dirk Lüde, Reiner Künstle
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Publication number: 20130241171Abstract: A lower leg (1) for a suspension fork has two tubes (2, 3) with, in each case, a receptacle device (4, 5) for receiving a stanchion tube displaceably mounted in the receptacle device. Two stabilizers (6, 7) connect those end regions of the two tubes which are opposite the dropouts of the tubes to one another. The lower leg (1) has a stiffening member (8, 9) which connects the two stabilizers to one another.Type: ApplicationFiled: March 18, 2013Publication date: September 19, 2013Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Dirk Lüde, Reiner Künstle
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Publication number: 20130187359Abstract: What is disclosed is a bicycle frame (1) comprising a seat tube (4) in which a saddle pillar (2) for a saddle is at least partially held, wherein the saddle pillar (2) or the main tube (12) thereof is adapted fro translatory movement and height-adjustment relative to the bicycle frame (1). In this case, a rotation prevention means and a locking device, in particular a seat device, are fastened on the seat tube (4). Both securing means act between the seat tube (4) and the main tube (12) in a form-fitting manner. In this case, the means of securing against rotation engages permanently in the main tube and the latching device can engage in, and can be disengaged from, the main tube.Type: ApplicationFiled: May 31, 2011Publication date: July 25, 2013Applicant: B-Labs AGInventors: Andreas Felsl, Jorg Poppe, Dirk Lude
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Patent number: 8439381Abstract: A lower leg (1) for a suspension fork has two tubes (2, 3) with, in each case, a receptacle device (4, 5) for receiving a stanchion tube displaceably mounted in the receptacle device. Two stabilizers (6, 7) connect those end regions of the two tubes which are opposite the dropouts of the tubes to one another. The lower leg (1) has a stiffening member (8, 9) which connects the two stabilizers to one another.Type: GrantFiled: March 1, 2010Date of Patent: May 14, 2013Assignee: Gustav Magenwirth GmbH & Co. KGInventors: Dirk Lüde, Reiner Künstle
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Patent number: 8393448Abstract: A spring fork, in particular for bicycles, with a suspension system and a hydraulic damping system, includes a compression stage damping system (6) for a spring deflection process and a traction stage damping system (5) for a rebound process. At least one piston (3, 16, 27) is provided, which is located in the cylinder (2), and at least one connecting channel (17, 17a) is provided which connects the cylinder chambers located on both sides of the piston and is intended for the overflow of hydraulic oil (21). The compression stage damping system (6), which is activated during the spring deflection process, can be blocked by closing the connecting passage (lockout). At least with the compression stage damping system (6) blocked and, if appropriate, also with the traction stage damping system (5) also blocked, a bypass channel (11, 20, 20a) which has a reduced cross-section in comparison to the connecting channel (17, 17a) is opened.Type: GrantFiled: February 23, 2007Date of Patent: March 12, 2013Assignee: Gustav Magenwirth GmbH & Co. KGInventors: Reiner Kunstle, Dirk Lude
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Patent number: 8267484Abstract: An axle arrangement (1) for two-wheelers, particularly for bicycles, includes a quick-release axle (2) having an axle (6) as the supporting part for a hub (7). The axle (6) can be inserted in receiving or dropout ends (3, 4) of a fork (5), a linkage, a rear end or similar mount. The axle (6) has a threaded end (16) and a quick-release fastener (9) with a tensioning lever (10) on the other end. One of the dropout ends (3, 4), or an intermediate supporting part that can be connected to the dropout ends (3, 4), has a screw-in thread (15) for screwing in the one threaded axle end (16) of the axle (6). In addition, an adjustable stop may be provided for the purpose of limiting the screw-in depth of the threaded axle end (16) in the screw-in thread (15) of the dropout ends or in the screw-in thread (15) of the intermediate supporting part connected to the dropout ends (3, 4).Type: GrantFiled: February 1, 2008Date of Patent: September 18, 2012Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Dirk Lüde
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Publication number: 20110181009Abstract: A pneumatic spring device (1) for limiting the impact response of a vehicle wheel is provided, with at least one piston-cylinder arrangement (2) which has a piston (3) mounted in an axially displaceable manner in an internal cavity (5) of the cylinder (4), wherein the cylinder (4) is closed at its end regions which face away from each other by end walls (6) which are arranged at a fixed distance from one another. The piston (3) is connected to a piston rod (7) which passes through the end wall (6) and is guided in a sealing manner in the latter, wherein working spaces (8, 8?) which are delimited from each other on both sides of the piston (3) by the piston (3) and are formed as piston space (8) and piston rod space (8?) , which are filled with a compressible medium. The working spaces (8, 8?) can be connected to each other by a connecting device (10).Type: ApplicationFiled: February 23, 2007Publication date: July 28, 2011Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventors: Dirk Lude, Jurgen Beier
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Publication number: 20100282015Abstract: A shifting device, particularly for bicycle gearshifts, having an attachment device (2) for the installation of the shifting device on a handle bar (3) or similar steering unit, and having a shifting lever (10) for manual operation. The shifting device has a single shifting lever (10) for both shifting directions. The shifting lever (10) is pivotally supported about two different axes (6, 15), and one shifting direction is associated with each pivot axis (6, 15).Type: ApplicationFiled: January 15, 2009Publication date: November 11, 2010Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventor: Dirk Lude
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Publication number: 20100219607Abstract: A spring fork, in particular for bicycles, with a suspension system and a hydraulic damping system, wherein a compression stage damping system (6) is provided for a spring deflection process and a traction stage damping system (5) is provided for a rebound process. At least one piston (3, 16, 27) is provided, which is located in the cylinder (2), and at least one connecting passage (17, 17a) is provided which connects the cylinder chambers located on both sides of the piston and is intended for the overflow of hydraulic medium (21). The compression stage damping system (6) which is activated during the spring deflection process can be blocked by closing the connecting passage (lockout). At least with the compression stage damping system (6) blocked, if appropriate also with the traction stage damping system (5) also blocked, a bypass passage (11, 20, 20a) which has a reduced cross-section in comparison to the connecting passage (17, 17a) is opened.Type: ApplicationFiled: February 23, 2007Publication date: September 2, 2010Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventors: Reiner Kunstle, Dirk Lude
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Publication number: 20100164200Abstract: The invention relates to a lower leg (1) for a suspension fork having two tubes (2, 3) with in each case a receptacle device (4, 5) for receiving a stanchion tube displaceably mounted in the receptacle device and with two stabilizers (6, 7) which connect those end regions of the two tubes which are opposite the dropouts of the tubes to one another, the lower leg (1) having a stiffening device (8, 9) which connects the two stabilizers to one another.Type: ApplicationFiled: March 1, 2010Publication date: July 1, 2010Applicant: Gustav Magenwirth GmbH & Co. KGInventors: Dirk Lüde, Reiner Künstle
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Publication number: 20100096912Abstract: An axle arrangement (1) for two-wheelers, particularly for bicycles, wherein the arrangement includes a quick-release axle (2) having an axle (6) as the supporting part for a hub (7), wherein the axle can be inserted in receiving or dropout ends (3, 4) of a fork, a linkage, a rear end or similar mount. The axle has a threaded end (16) and a quick-release fastener (9) with a tensioning lever (10) on the other end. One of the receiving ends (3, 4), or an intermediate supporting part (13, 22) that can be connected to the dropout end, has a screw thread (15) for screwing in the one threaded end (16) of the axle (6). In addition, an adjustable stop may be provided for the purpose of limiting the screw-in depth of the threaded axle end (16) in the screw thread (15) of the receiving end (4) or in the screw thread (15) of the intermediate supporting part connected to the receiving end.Type: ApplicationFiled: February 1, 2008Publication date: April 22, 2010Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventor: Dirk Lude
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Publication number: 20090223763Abstract: A shock absorber for a suspension fork or a suspension unit, especially for bicycles, with a damping space (4) filled with damping fluid (5), and a rebound piston (8) that engages in the damping space (4) and moves relative to the damping space for damping the rebound. A reservoir (14) receives displaced damping fluid for downward a deflection. A compression piston (16) is arranged in the damping space (4) for damping the compression. Through the arrangement of the compression damping unit in the form of a compression piston within the damping space, the construction of the shock absorber is significantly simplified, because the damping fluid no longer has to be guided through a channel in the rebound piston rod to the remote compression damper.Type: ApplicationFiled: March 10, 2009Publication date: September 10, 2009Applicant: GUSTAV MAGENWIRTH GMBH & CO. KGInventor: Dirk Lude
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Patent number: 6592108Abstract: A suspension device (1) that has at least one reciprocating cylinder device (2) including a piston (4) located in the inner cavity of the cylinder (3) and which can move along the axis. The cylinder (3) is closed on its opposing ends facing by end walls (5a, 5b). The piston (4) is connected to a piston rod (6) which penetrates one of the end walls (5a). On both sides of the piston (4), there are working spaces (8a, 8b) formed by the surrounding piston (4) and the end walls (5a, 5b) which are filled with a working gas and are sealed airtight when in use. A filling device is provided for filling the working spaces (8a, 8b) with the working gas and includes a common feed line (9) for filling both of the working spaces (8a, 8b).Type: GrantFiled: July 18, 2002Date of Patent: July 15, 2003Inventor: Dirk Lüde