Patents by Inventor Wayne E. Harshberger

Wayne E. Harshberger 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: 8954243
    Abstract: Tip-off is a process of bringing a transport vehicle to a target weight by using only part of a bucket of a loader. By observing sensor data, tip-off may be automatically determined. Once determined, a visual indication may be made to an operator, allowing the operator to both confirm that tip-off mode is active and to show what tip-off mode is selected, truck tip-off or pile tip-off. Among other benefits, automatic tip-off allows an operator to maintain contact with the loader controls when entering tip-off mode of operation.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: February 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: Wayne E. Harshberger, Jeff Buettner, Robert Stanley
  • Patent number: 8662816
    Abstract: An improved Z-bar linkage for wheel loader machines for maneuvering an implement such as a bucket or pallet forks may include lift arms pivotally connected between an end frame of the machine and the implement, a tilt link pivotally connected between the implement and a tilt lever that is pivotally connected between the tilt link and the lift arms. Lift cylinders may rotate the lift arms to raise and lower the implement, and a tilt cylinder may drive the tilt lever and tilt link to rotate the implement between a dump position and a racked position. Ratios of the lengths of these kinematic elements are provided such that the good performance with one implement, such as bucket, does not result in poor performance with another implement, such as the pallet forks.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: March 4, 2014
    Assignee: Caterpillar Inc.
    Inventors: Joel R. Grimes, Wayne E. Harshberger, Jason J. Hagedorn, Jia X. Zhao, Susan Green, Jay H. Renfrow
  • Publication number: 20120128456
    Abstract: An improved Z-bar linkage for wheel loader machines for maneuvering an implement such as a bucket or pallet forks may include lift arms pivotally connected between an end frame of the machine and the implement, a tilt link pivotally connected between the implement and a tilt lever that is pivotally connected between the tilt link and the lift arms. Lift cylinders may rotate the lift arms to raise and lower the implement, and a tilt cylinder may drive the tilt lever and tilt link to rotate the implement between a dump position and a racked position. Ratios of the lengths of these kinematic elements are provided such that the good performance with one implement, such as bucket, does not result in poor performance with another implement, such as the pallet forks.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 24, 2012
    Inventors: Joel R. Grimes, Wayne E. Harshberger, Jason J. Hagedorn, Jia X. Zhao, Susan Green, Jay H. Renfrow
  • Patent number: 8037807
    Abstract: A machine configured to prevent unintentional motion in a linkage pivotally connected to a frame may include a first hydraulic actuator connected to the linkage and a second hydraulic actuator connected to the linkage. The machine may include a sensor and an electronic control module in communication with the sensor. The electronic control module may be configured to close a valve of the first hydraulic cylinder and/or cancel an actuation command to one of the first hydraulic actuator and the second hydraulic actuator in response to the electronic control module determining unintentional motion of the linkage has occurred based on the sensor.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: October 18, 2011
    Assignee: Caterpillar Inc.
    Inventors: Merritt P. Callaghan, Justin P. Pahl, Brian W. Tracy, Joel C. Weber, Wayne E. Harshberger, Rajeev V. Kumar, Steven C. Budde
  • Publication number: 20080295679
    Abstract: A machine configured to prevent unintentional motion in a linkage pivotally connected to a frame may include a first hydraulic actuator connected to the linkage and a second hydraulic actuator connected to the linkage. The machine may include a sensor and an electronic control module in communication with the sensor. The electronic control module may be configured to close a valve of the first hydraulic cylinder and/or cancel an actuation command to one of the first hydraulic actuator and the second hydraulic actuator in response to the electronic control module determining unintentional motion of the linkage has occurred based on the sensor.
    Type: Application
    Filed: May 16, 2008
    Publication date: December 4, 2008
    Applicant: Caterpillar Inc
    Inventors: Merritt P. Callaghan, Justin P. Pahl, Brian W. Tracy, Joel C. Weber, Wayne E. Harshberger, Rajeev V. Kumar, Steven C. Budde
  • Publication number: 20030225555
    Abstract: A method is disclosed of designing a component system. Primary components of the system are established, the primary components having a desired connectivity. Secondary components are then established for connecting the primary components. A model may be generated connecting the primary components and the secondary components to achieve the desired connectivity. The secondary components may be automatically established and the compatibility of the primary and secondary components may be verified. A computer readable medium and a system for performing the described method are also provided.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: Lalitha Gurumoorthy, Wayne E. Harshberger, Terry W. Keith, Gerard Moehn, Frankie D. Mohr, Terry L. Morris, Roger L. Wolschlag