Patents by Inventor Tomas Smetana
Tomas Smetana 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: 8663059Abstract: A transmission device for an automotive vehicle, which device includes a first spur gear transmission section, a second spur gear transmission section and a plurality of double planet pins. The double planet pins extend from a first side section to a second side section. Each of the double planet pins carries one first planet of the first set of planets and one second planet of the second set of planets. A plurality of supporting pins are also provided, each of the supporting pins carrying one third planet of the third set of planets. The supporting pins extend from the first side section to the second side section.Type: GrantFiled: August 17, 2012Date of Patent: March 4, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Tomas Smetana, Ramon Jurjanz
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Patent number: 8646982Abstract: A rolling bearing that has at least one first row of rolling elements and one second row of rolling elements as well as a common bearing ring for both rows.Type: GrantFiled: July 21, 2010Date of Patent: February 11, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Norbert Radinger, Tomas Smetana
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Patent number: 8579512Abstract: A drive unit for motor vehicles which has at least one electrical motor and at least one transmission assembly. The electrical motor and the transmission assembly are operatively connected to one another by at least one shaft and the shaft is rotatably mounted by at least one first rolling bearing which sits in a rotary union for the shaft in the transmission assembly.Type: GrantFiled: September 10, 2010Date of Patent: November 12, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Norbert Radinger, Tomas Smetana
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Publication number: 20130190130Abstract: A planetary gear system having at least two planetary steps, each of which is made up of at least one set of planets and one sun, whereby the teeth of the gearwheels in the planetary drive mesh with each other in such a way that, in each of the meshing points, at least one first tooth on a first toothing of first teeth positively engages into a tooth gap of a second toothing of second teeth. First teeth of the first toothing have a tooth flank profile concavely arched, and second teeth of the second toothing have a tooth flank profile convexly arched, so that the tooth flanks in contact with each other are arched in the same directions, at least when in contact.Type: ApplicationFiled: July 14, 2011Publication date: July 25, 2013Applicant: Schaeffler Technologies AG & Co. KGInventors: Thorsten Biermann, Tomas Smetana, Florian Doerrfuss
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Publication number: 20130172142Abstract: A planetary gear and a drive unit having the planetary gear, the planetary gear being characterized by very good integratability. For this purpose, a planetary gear (5) for transmitting a drive torque in a vehicle is proposed, having a first sun wheel attachment (12a) and a second sun wheel attachment (12b), each of the sun wheel attachments (12a, b) being coupled to a shaft (2a, b) in a rotationally fixed manner, and the sun wheel attachments (12a, b) being rotatable relative to one another, and the sun wheel attachments (12a, b) being situated in an overlapping area (11), overlapping in the radial direction.Type: ApplicationFiled: July 14, 2011Publication date: July 4, 2013Applicant: Schaeffler Technologies AG & Co., KGInventors: Tomas Smetana, Philip Wurzberger
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Patent number: 8448766Abstract: A coupling having at least two concentric rings, each having a circumferential surface and a recess, and at least two roller elements. The roller elements are each disposed in a channel formed by the circumferential surface of one of the rings and the recess of another of the rings. In some example embodiments of the invention, the coupling includes a coupling member with a bearing surface, at least one of the rings includes a split and the split ring is urged against the bearing surface when there is relative rotation between the rings. The coupling member is, for example, a shaft or a gear.Type: GrantFiled: June 18, 2010Date of Patent: May 28, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Tomas Smetana, Brian Lee
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Patent number: 8444523Abstract: Disclosed is a biasing device comprising a first ramp disc and a second ramp disc, a plurality of ramp contours being formed in one side of an annular surface of each of said ramp discs. Through a slewing of one of the two ramp discs relative to the other, non-slewing ramp disc about an axis, the rolling elements ascend and/or descend along the ramp contours. At least the first ramp disk, the cage and the second ramp disc are inserted into a retaining pot that is connected rotationally fast to a housing through at least one retaining element. For axial guidance, a plurality of rolling elements is arranged between the retaining pot and the non-slewing ramp disc.Type: GrantFiled: June 26, 2009Date of Patent: May 21, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Ramon Jurjanz, Tomas Smetana
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Publication number: 20130053203Abstract: A transmission device for an automotive vehicle, which device includes a first spur gear transmission section, a second spur gear transmission section and a plurality of double planet pins. The double planet pins extend from a first side section to a second side section. Each of the double planet pins carries one first planet of the first set of planets and one second planet of the second set of planets. A plurality of supporting pins are also provided, each of the supporting pins carrying one third planet of the third set of planets. The supporting pins extend from the first side section to the second side section.Type: ApplicationFiled: August 17, 2012Publication date: February 28, 2013Applicant: Schaeffler Technologies AG & Co. KGInventors: Tomas Smetana, Ramon Jurjanz
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Publication number: 20130037331Abstract: A displaceable system including at least one set of at least two wheels arranged in pairs for movement in a plane, said set being disposed on at least one wheel axle parallel to the plane. A single electric drive motor, a differential having variable torque distribution, and an electric servomotor are provided on the wheel axle for both wheels of a set. The electrical servomotor acts on the differential such that the torque generated by the single electric drive motor is distributed within the wheel axle individually to the wheels.Type: ApplicationFiled: April 13, 2011Publication date: February 14, 2013Applicant: Schaeffler Technologies AG & Co. KGInventors: Tomas Smetana, Raphael Fischer, Bernd Gombert
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Patent number: 8365891Abstract: A positively locking overrunning clutch, which has a damping device, a drive input element and a drive output element and also at least one blocking element which blocks a rotation of the drive output element relative to the drive input element in a first rotational direction and enables the rotation in the opposite rotational direction. The blocking element has two clamping rings which are pivotable relative to one another and damped with respect to one another.Type: GrantFiled: October 28, 2009Date of Patent: February 5, 2013Assignee: Schaeffler Technologies AG & Co. KGInventor: Tomas Smetana
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Patent number: 8348040Abstract: A form-fitting freewheel coupling, which has a first and second clamping track with latching structures, a gap space between the clamping tracks, and a clamping ring arranged in the gap space. The clamping ring has clamping tongues facing toward the first clamping track and clamping tongues facing toward the second clamping track. A drag ring is arranged in the gap space. The drag ring is pivotable to a limited extent, relative to the clamping ring and is spring-loaded against one of the clamping tracks and interacts with the clamping ring in such a way that, in the event of a rotation of the first clamping track relative to the second clamping track in the freewheel direction, the clamping ring is lifted fully from one of the clamping tracks, while the clamping tongues, which face away from the clamping track, protrude into the latching structures of the opposite clamping track.Type: GrantFiled: June 18, 2008Date of Patent: January 8, 2013Assignee: Schaeffler Technologies AG & Co. KGInventor: Tomas Smetana
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Patent number: 8348039Abstract: A clamping roller freewheel, which has an inner ring, an outer ring and clamping rollers arranged between the inner ring and outer ring. The clamping rollers interact, in each case, with one clamping ramp formed on the outer circumference of the inner ring. The clamping rollers are surrounded by an elastically expandable protective ring which is concentric with respect to the freewheel axis. Retaining lugs prevent the protective ring from being driven in rotation by the outer ring in idle running operation. In this way, the outer ring is prevented from grinding against the clamping rollers, and the clamping rollers are prevented from being driven in rotation, with the resulting wear to the clamping ramps, in idle running operation.Type: GrantFiled: August 14, 2009Date of Patent: January 8, 2013Assignee: Schaeffler Technologies AG & Co. KGInventor: Tomas Smetana
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Patent number: 8261897Abstract: A freewheel clutch that has sprags, which are located between an inner locking track and an outer locking track and two sliding discs which each feature one inner axis adjacent to the inner locking track, one outer axis adjacent to the outer locking track as well as one middle section which connects the axes, and has an axial inwardly directed bending. The bending extends from the outer axis to the inner axis and preferably features a maximum embossing depth which is lower than the wall thickness of the middle section.Type: GrantFiled: May 14, 2007Date of Patent: September 11, 2012Assignee: Schaeffler Technologies AG & Co. KGInventor: Tomas Smetana
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Publication number: 20120213460Abstract: A drive unit for motor vehicles having which has at least one electrical motor and at least one transmission assembly. The electrical motor and the transmission assembly are operatively connected to one another by at least one shaft and the shaft is rotatably mounted by at least one first rolling bearing which sits in a rotary union for the shaft in the transmission assembly.Type: ApplicationFiled: September 10, 2010Publication date: August 23, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Norbert Radinger, Tomas Smetana
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Patent number: 8202170Abstract: Example aspects of the present invention broadly comprise at least two concentric rings with complementary ramped surfaces, at least one of the rings being rotatable relative to another one of the rings so that contact is made at the ramped surfaces. The complementary ramped surfaces form respective circumferences of the rings. At least one of the ramped surfaces may have a sinusoidal profile, or a profile forming at least one of a straight line, concave, or convex. In some example embodiments of the invention, a first one of the rings is a coupling member and a second one of the rings is a tubular slipper with a friction surface radially opposite of the ramped surface. The tubular slipper is arranged to radially expand or contract upon contacting the coupling member.Type: GrantFiled: October 22, 2009Date of Patent: June 19, 2012Assignee: Schaeffler KGInventors: Tomas Smetana, Brian Lee
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Publication number: 20120141058Abstract: A rolling bearing that has at least one first row of roiling elements and one second row of rolling elements as well as a common bearing ring for both rows.Type: ApplicationFiled: July 21, 2010Publication date: June 7, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Norbert Radinger, Tomas Smetana
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Publication number: 20120006150Abstract: A controlled axial biasing unit (1) is provided which substantially includes a first ramp disk (11) and a second ramp disk (12), each of which disks is configured with a plurality of ramp contours (8). An annular cage (2) that carries a plurality of rolling elements (3) is inserted between the first ramp disk (11) and the second ramp disk (12). At least the first ramp disk (11), the second ramp disk (12) and the cage (2) are made by a shaping method without chip removal. Each of the first ramp disk (11) and the second ramp disk (12) is configured with a continuous wall (32). Likewise through this shaping method, the first ramp disk (11) and the second ramp disk (12) have on an outer periphery (UA) an integrally formed safety stop device (14) for respective end positions.Type: ApplicationFiled: February 19, 2010Publication date: January 12, 2012Applicant: SCHAEFFLER TECHNOLOGIES GBMH & CO. KGInventors: Norbert Radinger, Tomas Smetana, Fritz Wiesinger
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Patent number: 7997396Abstract: An overrunning clutch clamping body for an overrunning clutch comprises a first contact surface and a second contact surface for contacting respective clamping raceways. The curvature of the contact surfaces deviates from zero in each direction. Each of the contact surfaces is configured symmetrically both to a first plane (E1) extending normal to the axis of rotation of the overrunning clutch and to a second plane (E2) that is perpendicular to the first plane (E1), and the shape of the first contact surface corresponds to the shape of the second contact surface.Type: GrantFiled: June 10, 2008Date of Patent: August 16, 2011Assignee: Schaeffler KGInventors: Horst Döppling, Swen Dörrie, Tomas Smetana
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Publication number: 20110100780Abstract: Disclosed is a biasing device comprising a first ramp disc and a second ramp disc, a plurality of ramp contours being formed in one side of an annular surface of each of said ramp discs. Through a slewing of one of the two ramp discs relative to the other, non-slewing ramp disc about an axis, the rolling elements ascend and/or descend along the ramp contours. At least the first ramp disk, the cage and the second ramp disc are inserted into a retaining pot that is connected rotationally fast to a housing through at least one retaining element. For axial guidance, a plurality of rolling elements is arranged between the retaining pot and the non-slewing ramp disc.Type: ApplicationFiled: June 26, 2009Publication date: May 5, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Ramon Jurjanz, Tomas Smetana
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Publication number: 20110000755Abstract: A coupling having at least two concentric rings, each having a circumferential surface and a recess, and at least two roller elements. The roller elements are each disposed in a channel formed by the circumferential surface of one of the rings and the recess of another of the rings. In some example embodiments of the invention, the coupling includes a coupling member with a bearing surface, at least one of the rings includes a split and the split ring is urged against the bearing surface when there is relative rotation between the rings. The coupling member is, for example, a shaft or a gear.Type: ApplicationFiled: June 18, 2010Publication date: January 6, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Tomas Smetana, Brian Lee