Patents by Inventor Christopher S. Marks

Christopher S. Marks 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: 7393141
    Abstract: A vehicle differential includes a housing having bearing seats and a carrier provided with stub shafts which project into the bearing seats. The carrier is supported in the housing on two single row tapered roller bearings which allow the carrier to rotate, but confine it radially and axially. The housing also contains a beveled pinion which meshes with a beveled ring gear that is attached to the carrier. The two bearings are mounted in opposition and each includes a cup that is located in the bearing seat for that bearing, a cone that fits around the stub axle that projects into that bearing seat, and tapered rollers located between the cup and cone. Each bearing seat contains an internal thread and the bearing cup which fits into the seat has an external thread that engages the internal thread. Each cup also carries a locking ring which is engaged by an adjustment tool to turn the cup, but is later deformed into the housing to secure the cup against rotation.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: July 1, 2008
    Assignee: The Timken Company
    Inventors: Glenn R. Fahrni, Jr., David L. Milam, Michael F. Marcelli, Christopher S. Marks, Kofi P. Obeng, Scott D. Russell, Byron Roubanes, Gary A. Stoffer