Patents by Inventor Robert Gerald Graham

Robert Gerald Graham 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).

  • Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven
    Patent number: 10767283
    Abstract: Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven are disclosed. Example ovens include a heating system to heat gas, a substrate heating volume, and a plenum comprising a side wall having a plurality of passages formed therein, the plenum configured to direct heated gas into the substrate heating volume from the plurality of passages, each of the plurality of passages formed in the plenum having a respective tapered cross-sectional shape.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 8, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Hans L. Melgaard, Daniel M. Ruf, Matthew Benson, Phillip Vu, Robert Gerald Graham, Rolf Douglas Kragseth
  • OVENS, DISCHARGE NOZZLE PLATES FOR DISTRIBUTION OF GAS THROUGH AN OVEN, AND METHODS TO OPERATE AN OVEN
    Publication number: 20170051437
    Abstract: Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven are disclosed. Example ovens include a heating system to heat gas, a substrate heating volume, and a plenum comprising a side wall having a plurality of passages formed therein, the plenum configured to direct heated gas into the substrate heating volume from the plurality of passages, each of the plurality of passages formed in the plenum having a respective tapered cross-sectional shape.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Inventors: Hans L. Melgaard, Daniel M. Ruf, Matthew Benson, Phillip Vu, Robert Gerald Graham, Rolf Douglas Kragseth