Patents by Inventor Thomas Marietta

Thomas Marietta 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).

  • Grapple control system
    Patent number: 10624279
    Abstract: A system and method for controlling a grapple is described in embodiments herein. A variable pressure control may be implemented that controls the pressure applied to a load held by the grapple. An interlock mechanism may be employed on the felling grapple that disables the operation of components of the felling grapple such as a feller. A grapple release mechanism may be activated to release the pressure applied to the load in the event of a malfunction in the felling grapple.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: April 21, 2020
    Assignee: Altec Industries, Inc.
    Inventors: David Mead, Thomas Marietta