Patents by Inventor William Andrew Haggerty

William Andrew Haggerty 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).

  • Apparatus for controlling coolant flow in accordance to external forces upon a cutting tool
    Patent number: 4076442
    Abstract: An apparatus in a machine tool controls the flow of coolant in accordance to tool contact with a workpiece. The preferred embodiment measures and stores a torque value exerted upon a spindle motor under no-load conditions and compares this value to an operating torque value upon the same spindle motor. When the tool contacts a workpiece and the operating torque exceeds the stored no-load torque value by a predetermined amount, a solenoid operated valve is opened and coolant is permitted to the area of tool engagement with the workpiece.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: February 28, 1978
    Assignee: Cincinnati Milacron, Inc.
    Inventors: Joseph Henry Cox, Jr., William Andrew Haggerty