Patents by Inventor James G. Adair

James G. Adair 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 dynamic extruder
    Patent number: 3993421
    Abstract: A control system for a dynamic extruder wherein the pressure of the plastic melt is monitored and compared to a set point. When the melt pressure is equal to or greater than the set point, the supply of plastic to the extruder is halted, thereby preventing any increase in melt pressure and thereby precluding rupture of the extrusion die due to excess pressure.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: November 23, 1976
    Assignee: Phillips Petroleum Company
    Inventor: James G. Adair
  • Control of temperature profile across a heat exchanger
    Patent number: 3950118
    Abstract: The temperature profile established across a heat exchanger, such as employed on an extrusion die, for example, is controlled by introducing fluid into the heat exchanger at a predetermined temperature. The temperature of the fluid withdrawn from the heat exchanger is measured, and the rate of flow of fluid through the heat exchanger is controlled in response to the measured temperature to maintain the measured temperature at a predetermined value.
    Type: Grant
    Filed: May 17, 1974
    Date of Patent: April 13, 1976
    Assignee: Phillips Petroleum Company
    Inventor: James G. Adair