Patents by Inventor Phillip J. Ehrhart

Phillip J. Ehrhart 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).

  • Hydraulic pump drive
    Patent number: 7264064
    Abstract: A hydraulic pump drive is mounted to the tongue of an agricultural implement. Connecting components between the pump and the drawbar extender of the towing tractor aim the pump input shaft toward the tractor. A short telescoping PTO assembly connects the pump shaft to the tractor PTO shaft using conventional PTO components operating in a nominal equal angle configuration.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: September 4, 2007
    Assignee: CNH America LLC
    Inventors: Phillip J. Ehrhart, Wayne D. Thaxton
  • Hydraulic pump drive
    Patent number: 7055618
    Abstract: A hydraulic pump drive is mounted to the tongue of an agricultural implement. Connecting components between the pump and the drawbar extender of the towing tractor aim the pump input shaft toward the tractor. A short telescoping PTO assembly connects the pump shaft to the tractor PTO shaft using conventional PTO components operating in a nominal equal angle configuration.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: June 6, 2006
    Assignee: CNH America LLC
    Inventors: Phillip J. Ehrhart, Wayne D. Thaxton
  • Crop Conditioner frame with interchangeable rollers
    Patent number: 6955034
    Abstract: The apparatus is a crop conditioner frame in which both conditioning rollers and the torsion bar assembly forcing them together are interchangeable with other such parts of different designs. The interchangeability of the rollers is accomplished by simultaneously changing the bearings for the rollers and the mounting fixtures holding the bearings, but constructing all the mounting fixtures at any location to be attachable by the same fasteners.
    Type: Grant
    Filed: July 24, 2004
    Date of Patent: October 18, 2005
    Assignee: CNH America LLC
    Inventors: Edward A. Blakeslee, Phillip J. Ehrhart, Wayne D. Thaxton, Edward H. Priepke, Douglas S. Fitzkee