Patents by Inventor Billy G. Palmertree

Billy G. Palmertree 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).

  • Automated cone penetrometer
    Patent number: 5726349
    Abstract: A compact, portable cone penetrometer for determining the shear resistance of soil measures the compressive force on the penetrometer in penetrating the ground by a load cell and the depth of penetration of the ground by an ultrasonic proximity sensor. The outputs of the load cell and the proximity sensor are stored in the memory of a data logger/processor, from which the field data may later be transferred to a digital computer for averaging and tabulating of the data.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: March 10, 1998
    Assignee: United States Army Corps of Engineers As Represented By the Secretary of the Army
    Inventors: Billy G. Palmertree, Lewis Bonny Naron, James H. Robinson