Patents by Inventor Terry W. Priestley

Terry W. Priestley 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).

  • Grinding force measurement system for computer controlled grinding operations
    Patent number: 5718617
    Abstract: The present invention relates to a system for measuring a grinding force between a workpiece and a grinding wheel during the operation of a computer controlled grinding machine. A force transducer is mounted on a drive screw assembly between a moveable slide and a motor used to control movement of the slide. The force transducer generates a control signal that is conditioned and received by a digital signal processor, which instructs a machine controller to perform grinding operations in response to the measured force.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: February 17, 1998
    Assignee: Bryant Grinder Corporation
    Inventors: Terry W. Priestley, Stephen S. Buckingham
  • Method for determining tool size and for machining
    Patent number: 4751647
    Abstract: The method involves moving a reference or dummy tool of known size on a toolhead slide from a known position to actuate a limit switch, moving a working tool of unknown size on the same toolhead slide from the same known position to again actuate the limit switch and comparing the toolhead slide position for actuating the limit switch for the working tool with the stored toolhead slide position for the reference tool to determine size of the former.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: June 14, 1988
    Assignee: Bryant Grinder Corporation
    Inventors: Lawrence I. Millay, Terry W. Priestley