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).

  • Publication number: 20160178011
    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: Application
    Filed: December 22, 2014
    Publication date: June 23, 2016
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Dennis ROFFE, Charles SCHWAB
  • Publication number: 20160084300
    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: Application
    Filed: August 5, 2015
    Publication date: March 24, 2016
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Seth Claus, James Kevin Brown, Dennis Roffe
  • Publication number: 20160076593
    Abstract: A roller bearing cage and a roller bearing assembly are provided. The roller bearing cage has a cylindrical body formed with a plurality of pockets and a first cage rim at a first axial end of the body, the first cage rim including one or more axial passages. The cage has a second cage rim at a second axial end of the body, the second cage rim including one of more second axial passages.
    Type: Application
    Filed: July 27, 2015
    Publication date: March 17, 2016
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Dennis ROFFE
  • Publication number: 20150285305
    Abstract: A cage for rolling elements of a radial roller bearing is provided having first and second axial flanges spaced from each other by cage bars that extend therebetween that form a plurality of roller pockets. Retention scallops that extend axially inwardly are defined in each of the first and second axial flanges, generally centered about the cage bars, and the cage bars are located radially inwardly of a pitch circle of the rolling elements. The retention scallops extend axially inwardly at a position radially outward from the pitch circle to a position where portions of each of the retention scallops axially overlap end portions of adjacent rolling elements. A method of forming the cage and cage-roller assembly are also provided.
    Type: Application
    Filed: February 26, 2015
    Publication date: October 8, 2015
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Seth Claus, Dennis Roffe
  • Patent number: 8465209
    Abstract: A cage for a radial roller bearing of limited width availability, which has a first flange, a second flange spaced from the first flange, and cage bars that extend between the first flange and the second flange so as to form a plurality of roller pockets. The cage bars, together with the first flange and the second flange form an S-shaped or a Z-shaped contour. The cage aids in properly guiding roller elements in bearings of limited widths. The cage prevents rolling elements from overrunning or under running the cage bar. The cage also provides for proper contact of the rolling elements to push the cage around the radial bearing. Further, the cage allows for inner retention, outer retention, or both inner and outer retention of the rolling elements.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 18, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Seth Claus, Dennis Roffe
  • Publication number: 20110317952
    Abstract: A tandem roller bearing having circumferential inner and outer races each having first and second contact surfaces with convex profiles is provided. Rolling elements are arranged between the inner and outer races, each of the rolling elements having a concave profile corresponding to the convex profiles of a respective pairing of the first contact surfaces of the inner and outer races or of the second contact surfaces of the inner and outer races. A cage is arranged between the inner and outer races that separates and is guided by the rolling elements. The rolling elements include first and second sets of rolling elements having first and second axes of rotation that are arranged between the first and second contact surfaces of the inner and outer races, respectively. The first and second axes of rotation are inclined in a same direction with respect to a central axis of the inner race.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Michael Heaton, Seth Claus, Dennis Roffe, David Cessna
  • Publication number: 20110235959
    Abstract: A cage for a radial roller bearing of limited width availability, which has a first flange, a second flange spaced from the first flange, and cage bars that extend between the first flange and the second flange so as to form a plurality of roller pockets. The cage bars, together with the first flange and the second flange form an S-shaped or a Z-shaped contour. The cage aids in properly guiding roller elements in bearings of limited widths. The cage prevents rolling elements from overrunning or under running the cage bar. The cage also provides for proper contact of the rolling elements to push the cage around the radial bearing. Further, the cage allows for inner retention, outer retention, or both inner and outer retention of the rolling elements.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 29, 2011
    Inventors: Seth CLAUS, Dennis ROFFE