Patents by Inventor Michael C. Druga

Michael C. Druga 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).

  • Methods and systems for briquetting solid fuel
    Patent number: 8585786
    Abstract: In embodiments of the present invention improved capabilities are described for a system and method for briquetting solid fuel before or after treatment with electromagnetic energy. In the system and method, solid fuel is transported through a continuous feed solid fuel treatment facility, treated using electromagnetic energy, and briquetted after treatment.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: November 19, 2013
    Assignee: CoalTek, Inc.
    Inventors: J. Michael Drozd, Steven L. Lawson, Michael C. Druga, Frederick Christopher Lang, Jan M. Surma, Herbie L. Bullis
  • Methods and systems for processing solid fuel
    Patent number: 8585788
    Abstract: In embodiments of the present invention, a method of heat treating a solid fuel briquette may include heating the solid fuel briquette using energy from at least one of a heat furnace or an electromagnetic energy system of a solid fuel treatment facility as the solid fuel briquette is moved through the treatment facility to a specified internal temperature, and sealing the heat-treated solid fuel briquette in a vessel for a duration of time.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: November 19, 2013
    Assignee: CoalTek, Inc.
    Inventors: J. Michael Drozd, Michael C. Druga, Steven L. Lawson, Frederick Christopher Lang, Herbie L. Bullis
  • METHODS AND SYSTEMS FOR PROCESSING SOLID FUEL
    Publication number: 20090272028
    Abstract: In embodiments of the present invention, a method of heat treating a solid fuel briquette may include heating the solid fuel briquette using energy from at least one of a heat furnace or an electromagnetic energy system of a solid fuel treatment facility as the solid fuel briquette is moved through the treatment facility to a specified internal temperature, and sealing the heat-treated solid fuel briquette in a vessel for a duration of time.
    Type: Application
    Filed: May 5, 2009
    Publication date: November 5, 2009
    Inventors: J. Michael Drozd, Michael C. Druga, Steven L. Lawson, Frederick Christopher Lang, Herbie L. Bullis
  • METHODS AND SYSTEMS FOR BRIQUETTING SOLID FUEL
    Publication number: 20090119981
    Abstract: In embodiments of the present invention improved capabilities are described for a system and method for briquetting solid fuel before or after treatment with electromagnetic energy. In the system and method, solid fuel is transported through a continuous feed solid fuel treatment facility, treated using electromagnetic energy, and briquetted after treatment.
    Type: Application
    Filed: October 7, 2008
    Publication date: May 14, 2009
    Inventors: J. Michael Drozd, Steven L. Lawson, Michael C. Druga, Frederick Christopher Lang, Jan M. Surma, Herbie L. Bullis