Patents by Inventor Larry Alan Johnson

Larry Alan 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).

  • Method and apparatus for transmission clutch modulation during gear shift based on payload and selected direction
    Patent number: 6086509
    Abstract: In a vehicle, such as a construction vehicle, which has a payload of variable but significant weight with respect to the empty weight of the vehicle, a sensor senses the weight of the payload and transmits a signal representative thereof to a processor. The processor modulates clutch transmission fluid pressure as a function of the payload, permitting more uniform operating characteristics. The sensor can be a hydraulic fluid pressure sensor installed in a hydraulic cylinder used to lift a payload bucket arm.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: July 11, 2000
    Assignee: Case Corporation
    Inventors: Larry Alan Johnson, David Langsford Collins
  • Tracked mini-excavator loader
    Patent number: D540828
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 17, 2007
    Assignee: CNH America LLC
    Inventors: Larry Alan Johnson, Carl J. Hagele, Wayne Ervin Bietz, Richard Keith LaFrenier, Russell Clemens Wadzinski
  • Tractor loader backhoe with tracks
    Patent number: D540829
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 17, 2007
    Assignee: CNH America LLC
    Inventors: Larry Alan Johnson, Carl J. Hagele, Wayne Ervin Bietz