Patents by Inventor John G. Gritt

John G. Gritt 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).

  • Patent number: 11162042
    Abstract: A method of preparing agglomerates of ultra-fine coal particles includes mixing a film forming agglomeration aid (FFAA) with a quantity of ultra-fine coal particles to form ultra-fine coal particles coated with the FFAA. The FFAA has a lower surface energy relative to a surface of the ultra-fine coal particles. The FFAA is mixed with the ultra-fine coal particles in an amount less than 3% by weight of the ultra-fine coal particles on a dry basis. Agglomerates of the ultra-fine coal particles coated with the film forming agglomeration aid are formed using vibration, pelleting, and/or briquetting. The agglomerates have a size of at least 2 mm. The ultra-fine coal particles have a particle size less than 100 ?m. The agglomerate has a tumbler test friability less than 3%. The drop shatter friability is also less than 3%.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: November 2, 2021
    Assignee: OMNIS MINERAL TECHNOLOGIES, LLC
    Inventors: James S. Swensen, Jonathan K. Hodson, John G. Gritt, Nathan A. Chapman, Paul R. Samario, Michael R. Hodson, Simon K. Hodson
  • Publication number: 20200140773
    Abstract: A method of preparing agglomerates of ultra-fine coal particles includes mixing a film forming agglomeration aid (FFAA) with a quantity of ultra-fine coal particles to form ultra-fine coal particles coated with the FFAA. The FFAA has a lower surface energy relative to a surface of the ultra-fine coal particles. The FFAA is mixed with the ultra-fine coal particles in an amount less than 3% by weight of the ultra-fine coal particles on a dry basis. Agglomerates of the ultra-fine coal particles coated with the film forming agglomeration aid are formed using vibration, pelleting, and/or briquetting. The agglomerates have a size of at least 2 mm. The ultra-fine coal particles have a particle size less than 100 ?m. The agglomerate has a tumbler test friability less than 3%. The drop shatter friability is also less than 3%.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Inventors: James S. Swensen, Jonathan K. Hodson, John G. Gritt, Nathan A. Chapman, Paul R. Samario, Michael R. Hodson, Simon K. Hodson
  • Patent number: 10526556
    Abstract: A method of preparing agglomerates of ultra-fine coal particles includes mixing a film forming agglomeration aid (FFAA) with a quantity of ultra-fine coal particles to form ultra-fine coal particles coated with the FFAA. The FFAA has a lower surface energy relative to a surface of the ultra-fine coal particles. The FFAA is mixed with the ultra-fine coal particles in an amount less than 3% by weight of the ultra-fine coal particles on a dry basis. Agglomerates of the ultra-fine coal particles coated with the film forming agglomeration aid are formed using vibration, pelleting, and/or briquetting. The agglomerates have a size of at least 2 mm. The ultra-fine coal particles have a particle size less than 100 ?m. The agglomerate has a tumbler test friability less than 3%. The drop shatter friability is also less than 3%.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: January 7, 2020
    Assignee: OMNIS MINERAL TECHNOLOGIES, LLC
    Inventors: James S. Swensen, Jonathan K. Hodson, John G. Gritt, Nathan A. Chapman, Paul R. Samario, Michael R. Hodson, Simon K. Hodson
  • Publication number: 20180334628
    Abstract: A method of preparing agglomerates of ultra-fine coal particles includes mixing a film forming agglomeration aid (FFAA) with a quantity of ultra-fine coal particles to form ultra-fine coal particles coated with the FFAA. The FFAA has a lower surface energy relative to a surface of the ultra-fine coal particles. The FFAA is mixed with the ultra-fine coal particles in an amount less than 3% by weight of the ultra-fine coal particles on a dry basis. Agglomerates of the ultra-fine coal particles coated with the film forming agglomeration aid are formed using vibration, pelleting, and/or briquetting. The agglomerates have a size of at least 2 mm. The ultra-fine coal particles have a particle size less than 100 ?m. The agglomerate has a tumbler test friability less than 3%. The drop shatter friability is also less than 3%.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 22, 2018
    Inventors: James S. Swensen, Jonathan K. Hodson, John G. Gritt, Nathan A. Chapman, Paul R. Samario, Michael R. Hodson, Simon K. Hodson