Patents by Inventor Robert T. Key, Jr.

Robert T. Key, Jr. 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).

  • X-Y Movable work holder
    Patent number: 4157818
    Abstract: A workholder stage that includes and X-Y movable work mounting plate, a stationary base plate, an intermediate coupling plate and two pairs of perpendicularly oriented leaf springs. One pair of leaf springs is connected to the base plate and to the intermediate coupling plate while the other pair is connected to the work mounting plate and to the intermediate coupling plate.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: June 12, 1979
    Assignee: Motorola, Inc.
    Inventor: Robert T. Key, Jr.