Patents by Inventor Robert F. Boyle

Robert F. Boyle 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: 3954188
    Abstract: A universal transfer device for performing specific repetitive functions in an industrial environment and comprising a gripper arm means rotatably mounted on a suitable frame and capable of sweeping through a predetermined maximum radian displacement is provided with an intermediate stop means which can be actuated as required to limit said radian displacement in any given instance without a need to reset the maximum radian displacement. High degree of reproducibility of the path travelled by the gripper arm means in several planes is achieved by maintaining a positive force which urges the gripper arm means against a stop at the end of its movement in any particular plane.
    Type: Grant
    Filed: November 15, 1974
    Date of Patent: May 4, 1976
    Assignee: Prab Conveyors, Inc.
    Inventor: Robert F. Boyle