Patents by Inventor L. Ted Johnson

L. Ted Johnson 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).

  • Single-piece multiple electrode conductor
    Patent number: 5055734
    Abstract: A single-piece multiple electrode conductor for a piezoelectric solid state motor stack with piezoelectric disks arranged with a plurality of electrodes. When the electrodes are connected to and biased by a source of electrical potential, an axial displacement is produced between opposite end surfaces of the stack. The single-piece multiple electrode conductor has a spine member for conducting an electrical potential to the piezoelectric disks. Extending from the spine member are a plurality of rib portions which conduct electrical potential to the piezoelectric disks which form the piezoelectric stack.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: October 8, 1991
    Assignee: Caterpillar Inc.
    Inventors: Charles E. Grawey, L. Ted Johnson, John M. Sloma, John F. Szentes