Patents by Inventor Keith Everett Maxwell

Keith Everett Maxwell 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: 10561568
    Abstract: A counterbalance system for an exoskeleton is provided, including a first hip joint to displace an external load experienced by a user above a waist of the user, the first hip joint provides for three degrees of freedom of movement, a tool interface located above the first hip joint to direct load displacement through the first hip joint, and a counterbalance arm having a first end and a second end, the counterbalance arm is secured to the tool interface at the first end, the second end of the counterbalance arm is moveable in an arcuate rotational path ranging from in front of the tool interface to behind the tool interface. Another system and method are also provided.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 18, 2020
    Assignee: Lockheed Martin Corporation
    Inventors: Keith Everett Maxwell, Patricia Ann Aelker, Gavin A. Barnes, Antoine J. Bell, Robert Brady, Erik Holmen, Alexander Hussain, Joel Chartier
  • Patent number: 9808073
    Abstract: An exoskeleton system is disclosed including a hip joint to provide anatomically emulating three degrees of freedom of movement of the hip joint at a hip location of a user, a knee joint to provide anatomically emulating forward and backward movement of the knee joint at a knee location of the user, an ankle joint to provide anatomically emulating forward and backward movement of the ankle joint at an ankle location of the user, a knee rocker arm as part of the knee joint to transfer a load to a ground surface when the knee rocker arm is in contact with the ground surface as manually powered by the user, and a ground rocker arm as part of the ankle joint to transfer the load to a ground surface when the ground rocker arm is in contact with the ground surface as manually powered by the user.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 7, 2017
    Assignee: Lockheed Martin Corporation
    Inventors: Keith Everett Maxwell, Patricia Ann Aelker, Gavin A. Barnes, Antoine J. Bell, Robert Brady, Erik Holmen, Alexander Hussain, Joel Chartier