Patents by Inventor Billy D. Cunnington

Billy D. Cunnington 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).

  • Rotating deck bushing with dust guard system
    Patent number: 7080702
    Abstract: A rotary deck bushing having an outer body held in a fixed orientation within a drill deck and an inner bushing portion that is configured for rotatable positioning within the outer body portion. A floating center bushing is removable positioned within the inner bushing and can be replaced as wear occurs. A dust deflector made up of a dust canister and a live rubber face with an opening is connected to the inner bushing portion so as to rotate with the inner bushing and to seal out the bushing portion from dust and grit and thus decrease the amount of wear upon the bearings of the device.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: July 25, 2006
    Inventor: Billy D. Cunnington