Patents by Inventor Robert L. Karr

Robert L. Karr 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).

  • Bar puller for numerically controlled lathe
    Patent number: 4321845
    Abstract: An automatic bar puller for a numerically controlled turret lathe, the puller being mounted on one station of the turret and have a detent actuated jaw that grips the end of a chuck mounted workpiece on triggering of a contact stop on the puller by the workpiece, and, the lathe controlling displacement of the workpiece and release of the jaw.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: March 30, 1982
    Inventors: Tibor Szabo, Robert L. Karr