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).

  • Patent number: 9039289
    Abstract: 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: Grant
    Filed: March 5, 2013
    Date of Patent: May 26, 2015
    Assignee: The Timken Company
    Inventors: Gerald P. Fox, Christopher S. Marks, Brian Werner, Thomas J. Rybkoski, Hans Landin
  • Publication number: 20150063738
    Abstract: 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: Application
    Filed: March 5, 2013
    Publication date: March 5, 2015
    Inventors: Gerald P. Fox, Christopher S. Marks, Brian Werner, Thomas J. Rybkoski, Hans Landin
  • Patent number: 8926190
    Abstract: 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: Grant
    Filed: December 22, 2011
    Date of Patent: January 6, 2015
    Assignee: The Timken Company
    Inventors: Gerald P. Fox, Brian Werner, Thomas J. Rybkoski
  • Publication number: 20130294718
    Abstract: 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: Application
    Filed: December 22, 2011
    Publication date: November 7, 2013
    Applicant: THE TIMKEN COMPANY
    Inventors: Gerald P. Fox, Brian Werner, Thomas J. Rybkoski
  • Patent number: 8465211
    Abstract: 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: Grant
    Filed: January 9, 2009
    Date of Patent: June 18, 2013
    Assignee: The Timken Company
    Inventors: John D. Dougherty, Richard H. Miller, Thomas J. Rybkoski, Justin P. Bill, Praveen M. Pauskar
  • Publication number: 20100285890
    Abstract: 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: Application
    Filed: January 9, 2009
    Publication date: November 11, 2010
    Applicant: THE TIMKEN COMPANY
    Inventors: John D. Dougherty, Richard H. Miller, Thomas J. Rybkoski, Justin P. Bill, Praveen M. Pauskar
  • Patent number: 6786645
    Abstract: 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: Grant
    Filed: November 18, 2002
    Date of Patent: September 7, 2004
    Assignee: The Timken Company
    Inventors: Mark A. Joki, James W. Skelly, Richard Borowski, Steven B. Boyd, Thomas J. Rybkoski
  • Patent number: 6659650
    Abstract: 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: Grant
    Filed: January 28, 2002
    Date of Patent: December 9, 2003
    Assignee: The Timken Company
    Inventors: Mark Joki, Thomas J. Rybkoski
  • Publication number: 20030142893
    Abstract: 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: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Applicant: The Timken Company
    Inventors: Mark Joki, Thomas J. Rybkoski
  • Patent number: 6581288
    Abstract: 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: Grant
    Filed: April 17, 2002
    Date of Patent: June 24, 2003
    Assignee: The Timken Company
    Inventors: Thomas J. Rybkoski, Richard H. Miller, Robert W. Hacker
  • Publication number: 20030094849
    Abstract: 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: Application
    Filed: November 18, 2002
    Publication date: May 22, 2003
    Inventors: Mark A. Joki, James W. Skelly, Richard Borowski, Steven V. Boyd, Thomas J. Rybkoski
  • Patent number: 6386764
    Abstract: 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: Grant
    Filed: September 7, 2000
    Date of Patent: May 14, 2002
    Assignee: The Timken Company
    Inventors: W. Norman Moore, Thomas J. Rybkoski
  • Patent number: 6095940
    Abstract: 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: Grant
    Filed: February 12, 1999
    Date of Patent: August 1, 2000
    Assignee: The Timken Company
    Inventors: Xiaolan Ai, Thomas J. Rybkoski
  • Patent number: RE40666
    Abstract: 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: Grant
    Filed: September 1, 2006
    Date of Patent: March 17, 2009
    Assignee: The Timken Company
    Inventors: Mark A. Joki, James W. Skelly, Richard Borowski, Steven V. Boyd, Thomas J. Rybkoski