Patents by Inventor Doug Earl PETTERSON

Doug Earl PETTERSON 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).

  • Publication number: 20170089035
    Abstract: A tool system is disclosed for a machine. The tool system may have a first adapter configured to removably connect with a first side of the machine, and a second adapter configured to removably connect with a second side of the machine opposite the first side. The tool system may also have a frame member with a first end pivotally attached to the first adapter, and a second end pivotally attached to the second adapter. The tool system may further have a tool pivotally connected to the frame member between the first and second adapters, and at least one hydraulic actuator disposed between the frame member and each of the first and second adapters.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Applicant: CATERPILLAR INC.
    Inventors: Jeffrey M. PARKER, Doug Earl PETTERSON, Jay Holloman RENFROW, Todd Rowland FARMER
  • Publication number: 20170089036
    Abstract: A machine is disclosed as having a body, and left and right traction devices supporting opposing sides of the body. The machine may also have a power source mounted to the body at a front end relative to a normal travel direction. The power source may be configured to drive the left and right traction devices. The machine may further have left and right lift arms. Each of the left and right lift arms may have a base end pivotally connected at a back end of the body to a location gravitationally above the left and right traction devices, respectively. The machine may additionally have a tool coupler mounted to distal ends of the left and right lift arms.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Applicant: Caterpillar Inc.
    Inventors: Jeffrey M. PARKER, Doug Earl PETTERSON, Jay Holloman RENFROW, Todd Rowland FARMER