Patents by Inventor Thomas S. Hamilton

Thomas S. Hamilton 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).

  • Wheel rim assembly with integral air cooled lubricant cavity and hub
    Patent number: 8186767
    Abstract: The two-piece wheel rim assembly includes first and second hub sections affixed together and rotatably mounted on an axle by a set of bearings which are longitudinally spaced apart on the axle. The hub sections have radially inboard wall segments and radially outboard segments. The inboard segments form a radial cavity about the axle longitudinally bounded by the bearings. An oil bath substantially fills the radial cavity except for a small thermal expansion air pocket. The thermal expansion air pocket is positioned above the axle and the bearings when the hub-tire combination is in use. The thermal expansion air pocket has a nominal size only sufficient to account for thermal expansion and contraction of the wheel.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: May 29, 2012
    Inventor: Thomas S. Hamilton
  • Wheel Rim Assembly with Integral Air Cooled Lubricant Cavity and Hub
    Publication number: 20100066158
    Abstract: The two-piece wheel rim assembly includes first and second hub sections affixed together and rotatably mounted on an axle by a set of bearings which are longitudinally spaced apart on the axle. The hub sections have radially inboard wall segments and radially outboard segments. The inboard segments form a radial cavity about the axle longitudinally bounded by the bearings. An oil bath substantially fills the radial cavity except for a small thermal expansion air pocket. The thermal expansion air pocket is positioned above the axle and the bearings when the hub-tire combination is in use. The thermal expansion air pocket has a nominal size only sufficient to account for thermal expansion and contraction of the wheel.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 18, 2010
    Inventor: Thomas S. Hamilton