Patents by Inventor Gary E. Coppock

Gary E. Coppock 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: 5531283
    Abstract: A drivetrain and load bearing swivel hitch assembly is provided which separates the load carrying function from the power transmitting function and features a swivel hitch assembly having three axes of rotation which allow for roll, pitch and yaw movement, respectively. One end of the load bearing swivel hitch assembly is secured to an implement such as a peanut combine, while the other end is securely joined to the drawbar of a pulling vehicle such as an agricultural tractor in a manner such that the draft and tongue load are not borne by the drivetrain assembly. Drivetrain assembly includes a swivel gearbox having a generally vertical axis above the generally vertical yaw axis of the load bearing swivel hitch assembly. Combines incorporating this drivetrain and load bearing swivel hitch assembly are also provided in order to present combines that will maintain the proper operational angle for combine operation irrespective of the tractor type or size used as the pulling vehicle.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: July 2, 1996
    Assignee: Bush Hog Corporation
    Inventors: Gregg A. Austin, Gary E. Coppock
  • Patent number: 5355971
    Abstract: A drivetrain and load bearing swivel hitch assembly is provided which separates the load carrying function from the power transmitting function and features a swivel hitch assembly having three axes of rotation which allow for roll, pitch and yaw movement, respectively. One end of the load bearing swivel hitch assembly is secured to an implement such as a peanut combine, while the other end is securely joined to the drawbar of a pulling vehicle such as an agricultural tractor in a manner such that the draft and tongue load are not borne by the drivetrain assembly. Drivetrain assembly includes a swivel gearbox having a generally vertical axis above the generally vertical yaw axis of the load bearing swivel hitch assembly. Combines incorporating this drivetrain and load bearing swivel hitch assembly are also provided in order to present combines that will maintain the proper operational angle for combine operation irrespective of the tractor type or size used as the pulling vehicle.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: October 18, 1994
    Assignee: Bush Hog Corporation
    Inventors: Gregg A. Austin, Gary E. Coppock