Patents by Inventor Thomas J. Rybkoski
Thomas J. Rybkoski 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: 9039289Abstract: A bearing cage assembly (100) comprises a plurality of discrete bridge elements (206) disposed between adjacent rolling elements (112) and coupled between first and second axially spaced cage support wire rings (102, 104) which are appropriately tensioned. Spacers (110) are disposed between adjacent bridge elements and engage the bridge elements in a piloted engagement. The bridge elements maintain a separation between rolling elements, retain the rolling elements within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings. Profiled surfaces on the bridge elements position the bearing cage assembly on at least one axial end of the rolling elements.Type: GrantFiled: March 5, 2013Date of Patent: May 26, 2015Assignee: The Timken CompanyInventors: Gerald P. Fox, Christopher S. Marks, Brian Werner, Thomas J. Rybkoski, Hans Landin
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Publication number: 20150063738Abstract: A bearing cage assembly (100) comprises a plurality of discrete bridge elements (206) disposed between adjacent rolling elements (1 12) and coupled between first and second axially spaced cage support wire rings (1 02, 1 04) which are appropriately tensioned. Spacers (1 10) are disposed between adjacent bridge elements and engage the bridge elements in a piloted engagement. The bridge elements maintain a separation between rolling elements, retain the rolling elements within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings. Profiled surfaces on the bridge elements position the bearing cage assembly on at least one axial end of the rolling elements.Type: ApplicationFiled: March 5, 2013Publication date: March 5, 2015Inventors: Gerald P. Fox, Christopher S. Marks, Brian Werner, Thomas J. Rybkoski, Hans Landin
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Patent number: 8926190Abstract: A bearing cage assembly comprising of a plurality of discrete bridge elements coupled between first and second cage support wire rings having selected tensions, and conforming to the surfaces of associated rolling elements. The discrete bridge elements maintain rolling element in separation, provide rolling element retention within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings. The discrete bridge elements may be disposed between adjacent rolling elements, or may be configured to pass through axial bores of hollow rolling elements.Type: GrantFiled: December 22, 2011Date of Patent: January 6, 2015Assignee: The Timken CompanyInventors: Gerald P. Fox, Brian Werner, Thomas J. Rybkoski
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Publication number: 20130294718Abstract: A bearing cage assembly consisting of a plurality of discrete bridge elements coupled between first and second cage support wire rings having selected tensions, and conforming to the surfaces of associated rolling elements. The discrete bridge elements maintain rolling element in separation, provide rolling element retention within the bearing assembly, and function as a lubrication reservoir for grease lubricated bearings.Type: ApplicationFiled: December 22, 2011Publication date: November 7, 2013Applicant: THE TIMKEN COMPANYInventors: Gerald P. Fox, Brian Werner, Thomas J. Rybkoski
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Patent number: 8465211Abstract: A compact wheel end (A) serves to couple a road wheel (B) to a suspension system component (C) on an automotive vehicle and to transmit torque from a CV joint (D) to the road wheel. The wheel end includes a housing (2) that is attached to the suspension system component and a hub (4) provided with a drive flange (18) on which the road wheel is mounted and a spindle (20) that extends through the housing. The hub rotates relative to the housing on a double row tapered roller bearing (6), the raceways (40, 42, 44, 46) of which are surfaces on the housing and hub spindle. The wheel end also has a coupler (8) that is engaged with the hub spindle and the CV joint through mating splines (32, 72, 76, 94) and further provides a rib face (52) that backs the rollers (62) of the inboard row. The CV joint has a small diameter stub shaft (92) that extends through the hub to secure the CV joint to the hub, but does not transmit torque.Type: GrantFiled: January 9, 2009Date of Patent: June 18, 2013Assignee: The Timken CompanyInventors: John D. Dougherty, Richard H. Miller, Thomas J. Rybkoski, Justin P. Bill, Praveen M. Pauskar
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Publication number: 20100285890Abstract: A compact wheel end (A) serves to couple a road wheel (B) to a suspension system component (C) on an automotive vehicle and to transmit torque from a CV joint (D) to the road wheel. The wheel end includes a housing (2) that is attached to the suspension system component and a hub (4) provided with a drive flange (18) on which the road wheel is mounted and a spindle (20) that extends through the housing. The hub rotates relative to the housing on a double row tapered roller bearing (6), the raceways (40, 42, 44, 46) of which are surfaces on the housing and hub spindle. The wheel end also has a coupler (8) that is engaged with the hub spindle and the CV joint through mating splines (32, 72, 76, 94) and further provides a rib face (52) that backs the rollers (62) of the inboard row. The CV joint has a small diameter stub shaft (92) that extends through the hub to secure the CV joint to the hub, but does not transmit torque.Type: ApplicationFiled: January 9, 2009Publication date: November 11, 2010Applicant: THE TIMKEN COMPANYInventors: John D. Dougherty, Richard H. Miller, Thomas J. Rybkoski, Justin P. Bill, Praveen M. Pauskar
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Patent number: 6786645Abstract: A mounting for the road wheel of an automotive vehicle includes a spindle, a hub located around the spindle and inboard and outboard tapered roller bearings located between the hub and spindle where they are mounted in opposition. The cones (inner races) of the two bearings are separated by a spacer which at its ends is attached to the cones. The spacer holds the cones together within the hub so that the bearings and hub can be installed on and removed from the spindle as a unit. The spacer also establishes the setting for the bearings. In addition, the mounting has a seal located in the inboard end of the hub. The seal has lips which establish dynamic fluid barriers along the cone of the inboard bearing and along an adjacent sealing surface on the spindle without contacting the cone or spindle. The raceways and rollers for the two bearings have highly crowned profiles and the hub and the seal within contain an optimum amount of grease for lubricating the bearings.Type: GrantFiled: November 18, 2002Date of Patent: September 7, 2004Assignee: The Timken CompanyInventors: Mark A. Joki, James W. Skelly, Richard Borowski, Steven B. Boyd, Thomas J. Rybkoski
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Patent number: 6659650Abstract: An improved cage is provided for a roller bearing for use in a hub assembly, for example. The cage includes roller pockets which fully entrap the roller in the cage, to maintain the radial and axial position of the roller in the cage. Additionally, the bearing for the hub assembly is formed in part by the hub. One of the inner races is formed integrally with the hub. These constructions allow for the cage/roller assembly to be installed in the outboard position of the hub prior to the hub and hub seal being installed in the hub assembly.Type: GrantFiled: January 28, 2002Date of Patent: December 9, 2003Assignee: The Timken CompanyInventors: Mark Joki, Thomas J. Rybkoski
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Publication number: 20030142893Abstract: An improved cage is provided for a roller bearing for use in a hub assembly, for example. The cage includes roller pockets which fully entrap the roller in the cage, to maintain the radial and axial position of the roller in the cage. Additionally, the bearing for the hub assembly is formed in part by the hub. One of the inner races is formed integrally with the hub. These constructions allow for the cage/roller assembly to be installed in the outboard position of the hub prior to the hub and hub seal being installed in the hub assembly.Type: ApplicationFiled: January 28, 2002Publication date: July 31, 2003Applicant: The Timken CompanyInventors: Mark Joki, Thomas J. Rybkoski
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Patent number: 6581288Abstract: An application tool (and a method of use of the tool) is provided for assembling an outboard seal and roller assembly into a hub unit. The tool and method allow for the use of standard seals and standard cage/roller assemblies, thus avoiding the problem associated with the use of special cages or oversized large-diameter seals.Type: GrantFiled: April 17, 2002Date of Patent: June 24, 2003Assignee: The Timken CompanyInventors: Thomas J. Rybkoski, Richard H. Miller, Robert W. Hacker
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Publication number: 20030094849Abstract: A mounting for the road wheel of an automotive vehicle includes a spindle, a hub located around the spindle and inboard and outboard tapered roller bearings located between the hub and spindle where they are mounted in opposition. The cones (inner races) of the two bearings are separated by a spacer which at its ends is attached to the cones. The spacer holds the cones together within the hub so that the bearings and hub can be installed on and removed from the spindle as a unit. The spacer also establishes the setting for the bearings. In addition, the mounting has a seal located in the inboard end of the hub. The seal has lips which establish dynamic fluid barriers along the cone of the inboard bearing and along an adjacent sealing surface on the spindle without contacting the cone or spindle. The raceways and rollers for the two bearings have highly crowned profiles and the hub and the seal within contain an optimum amount of grease for lubricating the bearings.Type: ApplicationFiled: November 18, 2002Publication date: May 22, 2003Inventors: Mark A. Joki, James W. Skelly, Richard Borowski, Steven V. Boyd, Thomas J. Rybkoski
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Patent number: 6386764Abstract: A single row tapered roller bearing enables an axle shaft to rotate in an axle housing and further confines the shaft axially with respect to the housing. The bearing includes a cup that is fitted into the housing and a cone that is fitted around a bearing seat on the shaft and also tapered rollers located between raceways on the cup and cone. Radial loads and thrust loads in one axial direction are transferred to the rollers at the raceways. Thrust loads in the other axial direction are transferred to the rollers at a confining surface on the cup at the large ends of the rollers and at another confining surface on a backing collar located at the small ends of the rollers. The backing collar fits over the bearing seat on the shaft with an interference fit and captures the cone on the bearing seat.Type: GrantFiled: September 7, 2000Date of Patent: May 14, 2002Assignee: The Timken CompanyInventors: W. Norman Moore, Thomas J. Rybkoski
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Patent number: 6095940Abstract: A planetary traction drive transmission has an inner shaft provided with two inner raceways which are presented outwardly and taper downwardly away from each other and an outer ring having two outer raceways which are presented inwardly, surround the inner raceways, and likewise taper downwardly away from each other. In addition, the transmission has tapered rollers arranged in two rows between the opposing inner and outer races. The rollers of each row are on apex and in line contact with the inner and outer raceways between which they are located. Moreover, they are arranged in pairs, with the rollers of each pair being generally aligned and backing each other. Indeed, at their large ends the rollers have conical end faces, and the rollers in each pair contact each other along those conical end faces, there being line contact here as well.Type: GrantFiled: February 12, 1999Date of Patent: August 1, 2000Assignee: The Timken CompanyInventors: Xiaolan Ai, Thomas J. Rybkoski
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Patent number: RE40666Abstract: A mounting for the road wheel of an automotive vehicle includes a spindle, a hub located around the spindle and inboard and outboard tapered roller bearings located between the hub and spindle where they are mounted in opposition. The cones (inner races) of the two bearings are separated by a spacer which at its ends is attached to the cones. The spacer holds the cones together within the hub so that the bearings and hub can be installed on and removed from the spindle as a unit. The spacer also establishes the setting for the bearings. In addition, the mounting has a seal located in the inboard end of the hub. The seal has lips which establish dynamic fluid barriers along the cone of the inboard bearing and along an adjacent sealing surface on the spindle without contacting the cone or spindle. The raceways and rollers for the two bearings have highly crowned profiles and the hub and the seal within contain an optimum amount of grease for lubricating the bearings.Type: GrantFiled: September 1, 2006Date of Patent: March 17, 2009Assignee: The Timken CompanyInventors: Mark A. Joki, James W. Skelly, Richard Borowski, Steven V. Boyd, Thomas J. Rybkoski