Patents by Inventor Jeff Doka

Jeff Doka 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).

  • Rail wheel stop mechanism for road/rail vehicle
    Patent number: 6598538
    Abstract: For use with a road/rail vehicle that is convertible from a road mode for traveling on a road, to a rail mode for traveling on rails, an apparatus for mounting a rail wheel to the vehicle. The apparatus comprises an air bag bearing against the rail wheel and the vehicle frame such that the vehicle frame is supported on the rail wheel by the air bag and such that the vehicle frame can move up and down with respect to the rail wheel in response to motion of the vehicle along a set of rails. A stop mechanism is attached to the vehicle frame and to the rail wheel and is operative to allow the vehicle frame to move down with respect to the rail wheel only to a stopped position where adjacent road wheels of the vehicle are above the rails. A kit allows installation on existing road/rail vehicles.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: July 29, 2003
    Assignee: Brandt Industries, Inc.
    Inventors: Jim Semple, Jeff Doka
  • Rail wheel stop mechanism for road/rail vehicle
    Publication number: 20030066455
    Abstract: For use with a road/rail vehicle that is convertible from a road mode for traveling on a road, to a rail mode for traveling on rails, an apparatus for mounting a rail wheel to the vehicle. The apparatus comprises an air bag bearing against the rail wheel and the vehicle frame such that the vehicle frame is supported on the rail wheel by the air bag and such that the vehicle frame can move up and down with respect to the rail wheel in response to motion of the vehicle along a set of rails. A stop mechanism is attached to the vehicle frame and to the rail wheel and is operative to allow the vehicle frame to move down with respect to the rail wheel only to a stopped position where adjacent road wheels of the vehicle are above the rails. A kit allows installation on existing road/rail vehicles.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Applicant: Brandt Industries Ltd.
    Inventors: Jim Semple, Jeff Doka