Patents by Inventor James Gregory Johnson

James Gregory Johnson 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: 8925964
    Abstract: A ballast assembly for a work vehicle includes a ballast weight having a central groove. Two pairs of coupling pins extend across the central groove. A pair of support rods are attached to an underside of a frame part of the vehicle. The assembly also includes a pair of ballast bracket, each of which is releasably coupled to a corresponding pair of the coupling pins. The assembly also includes a pair of links, each having an end pivotally coupled to a corresponding ballast bracket, and having a body with a slot which slidably receives a corresponding support rod. A hydraulic cylinder has a first end pivotally coupled to one of the links and a second end pivotally coupled to the frame part. Each ballast bracket includes a latch member which releasably holds the ballast bracket to the corresponding pair of coupling pins.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: January 6, 2015
    Assignee: Deere & Company
    Inventors: Steven A. Duppong, Bryan K. Buerkle, Robert David Andrew Wolsky, Lucas Aaron Laudenbach, James Gregory Johnson