Patents by Inventor Dennis ROFFE

Dennis ROFFE 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: 11105370
    Abstract: A bearing cage includes a first annular body having a plurality of circumferentially arranged fingers that extending axially therefrom. Each of the fingers have a tab with a first arcuate engagement surface. A second annular body has a plurality of circumferentially arranged finger-receiving holes extending axially and configured to receive the fingers. Each of the holes have an associated second arcuate engagement surface configured to engage with the first arcuate engagement surface when the fingers are received in the holes to secure the first and second bodies together to form the bearing cage.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 31, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Marion Jack Ince, Guihui Zhong, Michael Heaton, Dennis Roffe
  • Publication number: 20210262523
    Abstract: A bearing cage includes a first annular body having a plurality of circumferentially arranged fingers that extending axially therefrom. Each of the fingers have a tab with a first arcuate engagement surface. A second annular body has a plurality of circumferentially arranged finger-receiving holes extending axially and configured to receive the fingers. Each of the holes have an associated second arcuate engagement surface configured to engage with the first arcuate engagement surface when the fingers are received in the holes to secure the first and second bodies together to form the bearing cage.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 26, 2021
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Marion Jack INCE, Guihui ZHONG, Michael HEATON, Dennis ROFFE
  • Patent number: 11098762
    Abstract: A bearing cage assembly is disclosed that includes two sub-assemblies. Both cage sub-assemblies include a shell half formed from plastic, and defining a plurality of rolling element pockets and openings. Each sub-assembly also includes a frame half formed from metal, and including a rim and a plurality of crossbars. The shell halves are overmolded with the frame halves. The first cage sub-assembly and the second cage sub-assembly are connected to each other via insertion of the crossbars into the openings of the other sub-assembly, such that free ends of the crossbars engage the other rim.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: August 24, 2021
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Guihui Zhong, Michael Heaton, Dennis Roffe
  • Publication number: 20210231173
    Abstract: A bearing cage assembly including two different cage halves formed from different materials is disclosed. The first cage half includes a first rim and a first plurality of arms extending from the first rim. The second cage half includes a second rim and a second plurality of arms extending from the second rim. The first cage half and the second cage half are fastened to each other via engagement between a plurality of first retainers of the first cage half with the plurality of second retainers of the second cage half.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 29, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, Michael Heaton, Guihui Zhong
  • Patent number: 10697497
    Abstract: A hybrid bearing cage, suitable for high-speed applications, includes a plastic ring and a metal stiffener. Rollers, such as balls, are retained in roller retainers in the plastic ring. The roller retainers are joined by links. The metal stiffener has an annular portion and a plurality of radial extensions that extend over the links, reducing deflection and stress concentrations in the plastic ring due to centrifugal forces.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 30, 2020
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Dennis Roffe, Michael Heaton
  • Patent number: 10683891
    Abstract: A stacked thrust bearing arrangement including a central washer arranged between a first and second bearing assembly is disclosed. The central washer is axially positioned between a first inner bearing ring of the first bearing assembly, and a second inner bearing ring of the second bearing assembly. An inner sleeve defines a first retention flange adapted to engage a first cage of the first bearing assembly, and a second retention flange adapted to engage a second cage of the second bearing assembly.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: June 16, 2020
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Dennis Roffe, James Brown
  • Publication number: 20200182295
    Abstract: A stacked thrust bearing arrangement including a central washer arranged between a first and second bearing assembly is disclosed. The central washer is axially positioned between a first inner bearing ring of the first bearing assembly, and a second inner bearing ring of the second bearing assembly. An inner sleeve defines a first retention flange adapted to engage a first cage of the first bearing assembly, and a second retention flange adapted to engage a second cage of the second bearing assembly.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 11, 2020
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, James Brown
  • Patent number: 10527095
    Abstract: A cage and ball sub-assembly, including: an axis of rotation; a cylindrical plastic cage including a circumferentially disposed cage surface, a plurality of indentations extending from the circumferentially disposed cage surface into the cylindrical plastic cage in a first radial direction, and a plurality of pockets, each pocket circumferentially disposed between a respective pair of indentations included in the plurality of indentations; a metal insert including a plurality of support tabs, each support tab embedded in the cylindrical plastic cage, and including a circumferentially disposed portion and a flange extending from the circumferentially disposed portion in a second radial direction; and a plurality of balls disposed within the plurality of pockets. A circular arc, centered on the axis of rotation and orthogonal to the axis of rotation, passes through in sequence: a ball; the cylindrical plastic cage; the first flange of a support tab; and the cylindrical plastic cage.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: January 7, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, Michael Heaton
  • Patent number: 10428929
    Abstract: A planetary transmission assembly including a composite planetary staking pin is disclosed. The composite planetary staking pin fixes a planetary gear to a planetary carrier, and the planetary gear is supported on the composite planetary staking pin by rolling elements. The composite planetary staking pin includes an inner pin body having axial ends with circular grooves. The composite planetary staking pin is fixed to the planetary carrier via staking of the axial ends of the inner pin body. An outer sleeve of the composite planetary staking pin is fixed to the inner pin body. The outer sleeve defines a circumferentially extending helical channel that provides a lubricant flow path between an inlet defined by the planetary carrier and an outlet to the rolling elements.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 1, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Charles Schwab, Dennis Roffe, Alfred Thomas
  • Publication number: 20190242472
    Abstract: A planetary transmission assembly including a composite planetary staking pin is disclosed. The composite planetary staking pin fixes a planetary gear to a planetary carrier, and the planetary gear is supported on the composite planetary staking pin by rolling elements. The composite planetary staking pin includes an inner pin body having axial ends with circular grooves. The composite planetary staking pin is fixed to the planetary carrier via staking of the axial ends of the inner pin body. An outer sleeve of the composite planetary staking pin is fixed to the inner pin body. The outer sleeve defines a circumferentially extending helical channel that provides a lubricant flow path between an inlet defined by the planetary carrier and an outlet to the rolling elements.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Charles Schwab, Dennis Roffe, Alfred Thomas
  • Patent number: 10228017
    Abstract: A carrier hub assembly includes a carrier hub and a bearing assembly. The carrier hub includes an end portion having a first face surface and a second face surface. The bearing assembly includes a first bearing positioned on the first face surface and a second bearing positioned on the second face surface. Each bearing includes a pair of washers forming a pair of races, a cage, and a plurality of rolling elements. The bearing assembly further includes a connecting sleeve connecting the first bearing to the second bearing. The connecting sleeve retains the first bearing and the second bearing on the carrier hub.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: March 12, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Dennis Roffe, James Kevin Brown, Charles Schwab
  • Publication number: 20190048926
    Abstract: A carrier hub assembly includes a carrier hub and a bearing assembly. The carrier hub includes an end portion having a first face surface and a second face surface. The bearing assembly includes a first bearing positioned on the first face surface and a second bearing positioned on the second face surface. Each bearing includes a pair of washers forming a pair of races, a cage, and a plurality of rolling elements. The bearing assembly further includes a connecting sleeve connecting the first bearing to the second bearing. The connecting sleeve retains the first bearing and the second bearing on the carrier hub.
    Type: Application
    Filed: August 10, 2017
    Publication date: February 14, 2019
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, James Kevin Brown, Charles Schwab
  • Patent number: 9933010
    Abstract: An axial roller bearing includes a first bearing including a first cage and a first plurality of rollers and a second bearing including a second cage and a second plurality of rollers. The axial roller bearing further includes a first washer positioned on a side of the first bearing, a second washer positioned on a side of the second washer which is opposite from the side of the first bearing on which the first washer is positioned, and a connecting washer positioned between the first bearing and the second bearing. The first cage is attached at an inner side to the first washer and at an outer side to the connecting washer. The second cage is attached at an inner side to the connecting washer and at an outer side to the second washer.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: April 3, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: James Kevin Brown, Dennis Roffe
  • Publication number: 20170211624
    Abstract: An axial roller bearing includes a first bearing including a first cage and a first plurality of rollers and a second bearing including a second cage and a second plurality of rollers. The axial roller bearing further includes a first washer positioned on a side of the first bearing, a second washer positioned on a side of the second washer which is opposite from the side of the first bearing on which the first washer is positioned, and a connecting washer positioned between the first bearing and the second bearing. The first cage is attached at an inner side to the first washer and at an outer side to the connecting washer. The second cage is attached at an inner side to the connecting washer and at an outer side to the second washer.
    Type: Application
    Filed: January 25, 2016
    Publication date: July 27, 2017
    Inventors: James Kevin Brown, Dennis Roffe
  • Patent number: 9709088
    Abstract: An axial and radial combined load rolling bearing including a separately formed radial bearing ring and an axial bearing cup that are assembled together to form the combined load bearing in a simplified manner that avoids known issues with perpendicularity between the radial and axial bearing races. A method of making such a bearing is also provided.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: July 18, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Seth Claus, James Kevin Brown, Dennis Roffe
  • Patent number: 9689424
    Abstract: A tiered bearing assembly including first and second pluralities of tapered rolling elements and a common center ring arranged between the first and second pluralities of tapered rolling elements with a Z-shaped profile in cross-section is provided. A taper direction of the first plurality of tapered rolling elements is opposite to a taper direction of the second plurality of tapered rolling elements.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 27, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, Michael Heaton
  • Patent number: 9670960
    Abstract: A radial rolling bearing assembly is provided which includes first and second radial rolling bearings having respective bearing cups that include respective bearing races, respective radially extending flanges at first axial ends and respective bearing axial flanges with respective connector elements at the second axial ends. Respective cages hold rolling elements in the bearing cups that contact the races and define respective bearing support surfaces that can support, for example, a shaft or housing. A connector sleeve connects the first and second radial rolling bearings. The connector sleeve includes a first axial end with a first complementary connector that engages the first connector element, and a second axial end with a second complementary connector that engages the second connector element.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 6, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, Charles Schwab
  • Patent number: 9581193
    Abstract: A combined axial and radial bearing assembly is provided, having a radial bearing including an outer ring having a constant outside diameter, and radially inwardly extending flanges located at axial ends thereof. A radial bearing cage having an axially extended rim on a first side, and radial rolling elements therein is located within the outer ring. An axial bearing is provided including an axial bearing ring having a thrust race, and an axially extending flange connected to a radially inner end thereof. The axially extending flange has an ID that is less than the OD of the radial bearing outer ring. An axial bearing cage with thrust rolling elements located in at least some of the pockets is also provided. The axially extending flange of the axial bearing is press fit on the OD of the radial bearing outer ring in a region aligned with the axially extended rim.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 28, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Clayton Brzezinski, Seth Claus, Dennis Roffe
  • Publication number: 20160327086
    Abstract: A combined axial and radial bearing assembly is provided, having a radial bearing including an outer ring having a constant outside diameter, and radially inwardly extending flanges located at axial ends thereof. A radial bearing cage having an axially extended rim on a first side, and radial rolling elements therein is located within the outer ring. An axial bearing is provided including an axial bearing ring having a thrust race, and an axially extending flange connected to a radially inner end thereof. The axially extending flange has an ID that is less than the OD of the radial bearing outer ring. An axial bearing cage with thrust rolling elements located in at least some of the pockets is also provided. The axially extending flange of the axial bearing is press fit on the OD of the radial bearing outer ring in a region aligned with the axially extended rim.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 10, 2016
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Clayton Brzezinski, Seth Claus, Dennis Roffe
  • Publication number: 20160230809
    Abstract: An axial bearing assembly is provided having first and second axial end washers with axial flanges. An intermediate washer is provided with first and second axial retention flanges extending opposite radial ends. The first axial retention flange extends toward the first axial end washer on the other radial side from the first axial flange, and the second axial retention flange extends toward the second axial end washer on the other radial side from the second axial flange to define an S-shaped cross-section. Roller assemblies including rolling elements retained in cages are located between the first and second bearing inner races and outer races, respectively. Retention tabs are formed in the first and second axial retention flanges that engage over a part of the first cage and over a part of the second cage, respectively, to retain the first and second bearing roller assemblies to the intermediate washer.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 11, 2016
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, James Kevin Brown, Joseph T. Griffin