Patents by Inventor J. Kiefer Elliot

J. Kiefer Elliot 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).

  • Heat-treating methods and systems
    Patent number: 6963692
    Abstract: A method involves increasing a temperature of a workpiece over a first time period to an intermediate temperature, and heating a surface of the workpiece to a desired temperature greater than the intermediate temperature, the heating commencing within less time following the first time period than the first time period. Another method involves pre-heating the workpiece from an initial temperature to an intermediate temperature, and heating a surface of the workpiece to a desired temperature greater than the intermediate temperature by an amount less than or equal to about one-fifth of a difference between the intermediate and initial temperatures. Another method involves irradiating a first side of the workpiece to pre-heat the workpiece to an intermediate temperature, and irradiating a second side of the workpiece to heat the second side to a desired temperature greater than the intermediate temperature.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: November 8, 2005
    Assignee: Vortek Industries Ltd.
    Inventors: David Malcolm Camm, J. Kiefer Elliot