Patents by Inventor Craig J. McKinney

Craig J. McKinney 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).

  • Control system for manufacturing enhanced tubes
    Patent number: 4901416
    Abstract: A method and control system for manufacturing externally enhanced evaporator tubes. A pressure signal indicative of the pore size on the external surface of the enhanced evaporator tube is provided to a microcomputer system which processes the signal indicative of the pore size and compares the signal to a predetermined pore size signal to determine when the pore size is within a selected tolerance. The microcomputer generates a control signal to adjust the enhancing process if the microcomputer system determines that the pore size of the manufactured tube is different than the selected pore size.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: February 20, 1990
    Assignee: Carrier Corporation
    Inventor: Craig J. McKinney