Patents by Inventor Gregory Michael WASHBURN

Gregory Michael WASHBURN 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).

  • Method and apparatus for polymer drying using inert gas
    Patent number: 11203133
    Abstract: Method and apparatus for drying granular resin material by heating compressed air to a temperature prescribed for gas separation membrane operation, presenting the heated compressed air to a membrane separating out oxygen-size and smaller molecules to provide a stream of gas molecules of at least nitrogen-size at a pressure substantially that of the compressed air, heating the stream of gas molecules of at least nitrogen-size to a temperature at which dew point of the stream is no higher than ?40 degrees F., and introducing the heated stream of gas molecules into a chamber for upward flow to atmosphere through granular resin material in the chamber.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: December 21, 2021
    Assignee: Novatec, Inc.
    Inventors: Conrad Bessemer, Mark Haynie, Gregory Michael Washburn, Thomas Trevor Bludis
  • METHOD AND APPARATUS FOR POLYMER DRYING USING INERT GAS
    Publication number: 20200139585
    Abstract: Method and apparatus for drying granular resin material by heating compressed air to a temperature prescribed for gas separation membrane operation, presenting the heated compressed air to a membrane separating out oxygen-size and smaller molecules to provide a stream of gas molecules of at least nitrogen-size at a pressure substantially that of the compressed air, heating the stream of gas molecules of at least nitrogen-size to a temperature at which dew point of the stream is no higher than ?40 degrees F., and introducing the heated stream of gas molecules into a chamber for upward flow to atmosphere through granular resin material in the chamber.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 7, 2020
    Applicant: Novatec, Inc.
    Inventors: Conrad BESSEMER, Mark HAYNIE, Gregory Michael WASHBURN, Thomas Trevor BLUDIS