Patents by Inventor Peter Grawenhof
Peter Grawenhof 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: 10520010Abstract: A joint shaft, in particular a universal joint shaft, has first and second axial connection ends and a central part that connects the two connection ends to one another in a torsionally rigid and pivotable manner. At least one intermediate sleeve is provided between a first and a second shaft element with internal gearing having inner teeth, which are distributed over the circumference and extend in the direction of the longitudinal axis, and external gearing with outer teeth, which are distributed over the circumference and extend in the direction of the longitudinal axis. The sleeve is longitudinally displaceable relative to the first shaft element and to the second shaft element and is attached directly or indirectly in a torsionally rigid manner to the first shaft element by way of the intermediate sleeve external gearing and to the second shaft element by way of the intermediate sleeve internal gearing.Type: GrantFiled: October 16, 2015Date of Patent: December 31, 2019Assignee: Voith Patent GmbHInventors: Peter Grawenhof, Erich Haluk, Roger Clement
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Patent number: 10427196Abstract: A journal receptacle for a wobbler connection, in particular for the rotationally secure connection of a drive shaft, such as an articulated shaft, to a roll of a rolling mill. A wobbler hub has a receiving opening that extends in an axial direction of the wobbler hub, for the positive-locking reception of a roll journal. The receiving opening has an inner surface, extending in the axial direction and over the periphery and at least one torque transmission surface. The latter is clad at least partially with at least one wearing plate. The at least one wearing plate is held in a positive-locking manner on the torque transmission surface by at least one clamping piece, which extends in the axial direction on the torque transmission surface and which is connected to the torque transmission surface by a connecting device.Type: GrantFiled: October 16, 2015Date of Patent: October 1, 2019Assignee: Voith Patent GmbHInventors: Juergen Stocker, Dieter Maier, Peter Grawenhof
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Publication number: 20180250726Abstract: A journal receptacle for a wobbler connection, in particular for the rotationally secure connection of a drive shaft, such as an articulated shaft, to a roll of a rolling mill. A wobbler hub has a receiving opening that extends in an axial direction of the wobbler hub, for the positive-locking reception of a roll journal. The receiving opening has an inner surface, extending in the axial direction and over the periphery and at least one torque transmission surface. The latter is clad at least partially with at least one wearing plate. The at least one wearing plate is held in a positive-locking manner on the torque transmission surface by at least one clamping piece, which extends in the axial direction on the torque transmission surface and which is connected to the torque transmission surface by a connecting device.Type: ApplicationFiled: October 16, 2015Publication date: September 6, 2018Inventors: JUERGEN STOCKER, DIETER MAIER, PETER GRAWENHOF
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Publication number: 20180017098Abstract: A joint shaft, in particular a universal joint shaft, has first and second axial connection ends and a central part that connects the two connection ends to one another in a torsionally rigid and pivotable manner. At least one intermediate sleeve is provided between a first and a second shaft element with internal gearing having inner teeth, which are distributed over the circumference and extend in the direction of the longitudinal axis, and external gearing with outer teeth, which are distributed over the circumference and extend in the direction of the longitudinal axis. The sleeve is longitudinally displaceable relative to the first shaft element and to the second shaft element and is attached directly or indirectly in a torsionally rigid manner to the first shaft element by way of the intermediate sleeve external gearing and to the second shaft element by way of the intermediate sleeve internal gearing.Type: ApplicationFiled: October 16, 2015Publication date: January 18, 2018Inventors: PETER GRAWENHOF, ERICH HALUK, ROGER CLEMENT
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Patent number: 8382599Abstract: A universal joint arrangement with a journal cross, supported by bearings in two joint yokes offset to one another by 90°. Each joint yoke comprises a flange and two bearings. Each bearing has an axial bearing pressure disk that is supported by a first connection element on the joint yoke and a second connection element on the journal cross to form a first and second friction pairing. One of the connection elements has at least one elevated support region facing the axial bearing pressure disk. The support region is arranged in the region of low relative movement of the joint yoke with the journal cross, while the regions other than the support region lie in the region of greatest relative motion.Type: GrantFiled: January 20, 2011Date of Patent: February 26, 2013Assignee: Voith Turbo GmbH & Co. KGInventors: Peter Grawenhof, Hans Rosle
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Publication number: 20110207537Abstract: The invention relates to a universal joint arrangement for an articulated shaft, particularly a heavy-duty articulated shaft. The universal joint arrangement comprises two joint forks having fork holes, and a journal cross. The journals of the journal cross are each supported through bearing devices in the fork holes. The bearing devices comprise at least one axial bearing and at least one radial bearing for the respective journal. The axial bearing is arranged in the area of the journal shoulder. The fork hole comprises a contact collar on the inside of said fork hole, and the journal shoulder of the respective journal comprises a contact surface. The axial bearing is now arranged between the contact surface and the contact collar. A minimum path between the force application and the support of the axial bearing is thereby realized, which makes possible an extremely robust axial bearing support and which can do without additional attachment rims for supporting axial force.Type: ApplicationFiled: September 25, 2009Publication date: August 25, 2011Inventors: Peter Grawenhof, Simon Ritter
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Publication number: 20110143844Abstract: The invention relates to a universal joint arrangement with a journal cross, supported by bearings in two joint yokes offset to one another by 90° and in reflected arrangement to the plane of symmetry of the journal cross located perpendicular to the joint axis; each joint yoke comprises a flange part and two bearing parts, wherein each bearing part exhibits a bearing bore, in which the journals of the journal cross are supported by bearings; each journal is supported by means of a bearing arrangement; the bearing arrangement comprises one radial bearing and one axial bearing, wherein the axial bearing is designed as a friction bearing.Type: ApplicationFiled: January 20, 2011Publication date: June 16, 2011Applicant: VOITH TURBO GmbH & CO. KGInventors: Peter Grawenhof, Hans Rosle
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Patent number: 7892099Abstract: A universal joint arrangement with a journal cross, supported by bearings in two joint yokes offset to one another by 90°. Each joint yoke comprises a flange and two bearings. Each bearing has an axial bearing mold element that is supported by a connection element on the joint yoke and at least indirectly on the journal cross to form a first and second friction pairing. The mold element has a planar face and a second face having at least one elevated support region facing the first or second friction pairing, and is arranged with the support region on the connection element, which elastically deflects under load. The regions on the second face other than the support region are free from contact with the connection element in every load state. The support region is arranged in the region of low relative movement of the connection element with the journal cross, while the regions other than the support region lie in the region of greatest relative motion.Type: GrantFiled: December 7, 2006Date of Patent: February 22, 2011Assignee: Voith Turbo GmbH & Co. KGInventors: Peter Grawenhof, Hans Rosle
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Publication number: 20080234056Abstract: The invention relates to a universal joint system for use in cardan shafts, especially in heavy duty cardan shafts. Said universal joint system comprises a journal cross-assembly mounted in double yokes, the individual yoke comprising two yoke parts. Every yoke part comprises a base part and a bearing part, the yoke parts being positively interlinkable in the area of their base parts in coupling areas constituting coupling surfaces. The base parts of the yoke parts, on their coupling surface pointing to the base part of the respective other yoke part in the area of their outer periphery, have a first toothed section that is complementary thereto. The extensions of at least one tooth trace characterizing the first toothed section form an angle of >0° to <180° with a plane which is produced by the journal axis of the journal mounted in a yoke part and a yoke axis that is concurrent with a rotational axis of the yoke.Type: ApplicationFiled: January 20, 2005Publication date: September 25, 2008Applicant: VOITH TURBO GMBH & CO. KGInventor: Peter Grawenhof
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Patent number: 7338381Abstract: A spider, for a universal joint for prop shafts suitable for the transmission of torque, comprising pins arranged around a mid-point and extending from the base body in pairs about a common axis, whereby the axes cross at the center of the spider at a right angle. Each pin comprises a surface arranged concentrically about the corresponding pin axis forming a running surface, or has a running surface for the rollers of a roller bearing and a transition region between the surface forming, or supporting a running surface and the base body.Type: GrantFiled: December 16, 2003Date of Patent: March 4, 2008Assignee: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Peter Grawenhof, Holger Wegmann
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Publication number: 20070149297Abstract: The invention relates to a universal joint arrangement with a journal cross, supported by bearings in two joint yokes offset to one another by 90° and in reflected arrangement to the plane of symmetry of the journal cross located perpendicular to the joint axis; each joint yoke comprises a flange part and two bearing parts, wherein each bearing part exhibits a bearing bore, in which the journals of the journal cross are supported by bearings; each journal is supported by means of a bearing arrangement; the bearing arrangement comprises one radial bearing and one axial bearing, wherein the axial bearing is designed as a friction bearing.Type: ApplicationFiled: December 7, 2006Publication date: June 28, 2007Inventors: Peter Grawenhof, Hans Rosle
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Publication number: 20060100023Abstract: The invention relates to a spider, for a universal joint for prop shafts suitable for the transmission of torque, comprising pins arranged around a mid-point and extending from the base body in pairs about a common axis, whereby the axes cross at the centre of the spider at a right angle. Each pin comprises a surface arranged concentrically about the corresponding pin axis forming a running surface, or has a running surface for the rollers of a roller bearing and a transition region between the surface forming, or supporting a running surface and the base body.Type: ApplicationFiled: December 16, 2003Publication date: May 11, 2006Inventors: Hans Lindenthal, Peter Grawenhof, Holger Wagmann
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Patent number: 6923726Abstract: The invention relates to a yoke (4) which is used in universal-joint propeller shafts, having at least one leg member (7) which is connected to an input or output part of a machine element comprising at least one bearing part (8) surrounding a bore (9). Said bore (9) forms a supporting surface (10) at least one partial zone of a roller-bearing arrangement (11) for the positioning of a journal (6) of a differential-pinion shaft (3). The invention is characterized in that the supporting surface has at least one local recess (20) in the region of the rolling elements (14)) of the roller-bearing arrangement (11) which is subjected to maximum tensile stress during the transmission of the torque.Type: GrantFiled: August 23, 2000Date of Patent: August 2, 2005Assignee: Voith Turbo GmbH & Co., KGInventors: Hans Lindenthal, Peter Grawenhof
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Patent number: 6722787Abstract: A thrust ring, in particular an axial bearing thrust ring, for forming a running surface for rolling elements, for use in bearing systems for universal joints of cardan shafts. The ring has a first planar end side and a second end side, having two surface regions on the second end side which have been machined symmetrically with respect to a first axis of symmetry SD of the thrust ring, and also in terms of its profile in the circumferential direction as seen starting from the first axis of symmetry, in the circumferential direction, to a further, second axis of symmetry SSD which runs at right angles to the first axis of symmetry SD.Type: GrantFiled: June 28, 2001Date of Patent: April 20, 2004Assignee: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Hans Rösle, Peter Grawenhof
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Patent number: 6716105Abstract: A thrust ring, in particular an axial bearing thrust ring, for forming a running surface for rolling elements, for use in bearing systems for universal joints of cardan shafts. The ring has a first planar end side and a second end side, having two surface regions on the second end side which have been machined symmetrically with respect to a first axis of symmetry SD of the thrust ring, and also in terms of its profile in the circumferential direction as seen starting from the first axis of symmetry, in the circumferential direction, to a further, second axis of symmetry SSD which runs at right angles to the first axis of symmetry SD.Type: GrantFiled: November 12, 2002Date of Patent: April 6, 2004Assignee: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Hans Rösle, Peter Grawenhof
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Publication number: 20030103707Abstract: The invention relates to a thrust ring, in particular an axial bearing thrust ring, for forming a running surface for rolling elements, for use in bearing systems for universal joints of cardan shafts. The ring has a first planar end side and a second end side, having two surface regions on the second end side which have been machined symmetrically with respect to a first axis of symmetry SD of the thrust ring, and also in terms of its profile in the circumferential direction as seen starting from the first axis of symmetry, in the circumferential direction, to a further, second axis of symmetry SSD which runs at right angles to the first axis of symmetry SD.Type: ApplicationFiled: November 12, 2002Publication date: June 5, 2003Applicant: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Hans Rosle, Peter Grawenhof
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Patent number: 6540617Abstract: A flange yoke for a universal joint, two joint fork halves, each comprising a base component and a bearing component. The joint fork halves can be connected in a form-locking manner to one another in the region of their base component to form a flange. The base components have mutually complementary toothing in the region of the outer circumference on their coupling face, wherein the extension of a tooth trace of the toothing on the coupling face forms an angle of from >0 degrees to <180 degrees with a plane formed by the pin axis of a pin supported in a joint fork half and a joint fork axis coinciding with an axis of rotation of the joint fork. A second set of toothing is formed in the region of the joint fork axis on the mutually facing coupling faces of the base components. Extensions of these tooth traces are arranged at an angle of between 70 degrees and 110 degrees inclusive to the extension of a tooth trace of the first set of toothing.Type: GrantFiled: July 31, 2001Date of Patent: April 1, 2003Assignee: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Hans Rösle, Peter Grawenhof
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Publication number: 20020045487Abstract: A flange yoke for a universal joint, two joint fork halves, each comprising a base component and a bearing component. The joint fork halves can be connected in a form-locking manner to one another in the region of their base component to form a flange. The base components have mutually complementary toothing in the region of the outer circumference on their coupling face, wherein the extension of a tooth trace of the toothing on the coupling face forms an angle of from >0 degrees to <180 degrees with a plane formed by the pin axis of a pin supported in a joint fork half and a joint fork axis coinciding with an axis of rotation of the joint fork. A second set of toothing is formed in the region of the joint fork axis on the mutually facing coupling faces of the base components. Extensions of these tooth traces are arranged at an angle of between 70 degrees and 110 degrees inclusive to the extension of a tooth trace of the first set of toothing.Type: ApplicationFiled: July 31, 2001Publication date: April 18, 2002Applicant: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Hans Rosle, Peter Grawenhof
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Publication number: 20020001425Abstract: The invention relates to a thrust ring, in particular an axial bearing thrust ring, for forming a running surface for rolling elements, for use in bearing systems for universal joints of cardan shafts. The ring has a first planar end side and a second end side, having two surface regions on the second end side which have been machined symmetrically with respect to a first axis of symmetry SD of the thrust ring, and also in terms of its profile in the circumferential direction as seen starting from the first axis of symmetry, in the circumferential direction, to a further, second axis of symmetry SSD which runs at right angles to the first axis of symmetry SD.Type: ApplicationFiled: June 28, 2001Publication date: January 3, 2002Applicant: Voith Turbo GmbH & Co. KGInventors: Hans Lindenthal, Hans Rosle, Peter Grawenhof
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Patent number: 5547423Abstract: A universal joint attached to a cardan shaft and adapted for transmitting high torques. The universal joint includes two yokes, with each yoke having two bearing bores. A spider has a plurality of journals which are respectively disposed in the bearing bores. Each journal defines a corresponding journal axis, and has a journal bore defining an inner edge. The spider defines a joint axis extending generally perpendicular to each journal axis. A plurality of radial bearings are disposed within a respective bearing bore for rotatably supporting the journal within the bearing bore. Each radial bearing includes an inner race having a collar extending toward a respective journal axis. The collar extends radially inward of the inner edge and includes a first running face which faces toward the joint axis and parallel to the respective journal axis. A plurality of bearing caps are respectively disposed at an axial end of each journal.Type: GrantFiled: January 13, 1994Date of Patent: August 20, 1996Assignee: J.M. Voith GmbHInventors: Hans Lindenthal, Peter Grawenhof