Patents by Inventor Gary G. Leigh

Gary G. Leigh 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).

  • Cutting tool having positioning means
    Patent number: 4807501
    Abstract: A tailstock body of a numerically controlled lathe is positioned by a hydraulic rotary motor at a desired position to have a quill center of the tailstock body engage one end of a part or workpiece. The positioning of the tailstock body is by a programmable controller of a numerical control receiving signals for an encoder attached to the hydraulic rotary motor.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: February 28, 1989
    Assignee: Cincinnati Milacron Inc.
    Inventors: Gary G. Leigh, James F. Schwab
  • Cutting tool having an intensifier
    Patent number: 4751864
    Abstract: A numerically controlled lathe has its tailstock body clamped on ways of a bed at a desired position by pucks through using an intensifier to increase the hydraulic pressure applied to the pucks to three times the hydraulic source pressure. The intensifier is automatically replenished with hydraulic fluid each time that there is release of the clamping pucks.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: June 21, 1988
    Assignee: Cincinnati Milacron Inc.
    Inventors: Gary G. Leigh, Robert F. Massman