Patents by Inventor John B. Agnew

John B. Agnew 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).

  • System and process for agglomeration and processing of carbonaceous fines and dust
    Patent number: 6451092
    Abstract: A system and process for agglomerating and processing carbonaceous fines is provided. The process includes powdering the carbonaceous fines, mixing the powdered carbonaceous fines with an organic liquid creating a slurry, adding a predetermined amount of an aqueous electrolyte to the slurry creating agglomerated particles, settling the large agglomerated particles resulting in a settled mixture of agglomerated coal fines and reagent liquor, and separating the agglomerated coal fines from the reagent liquor.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: September 17, 2002
    Assignee: University of Wyoming
    Inventors: Pradeep Agarwal, Paola De Filippis, Temi M. Linjewile, John B. Agnew, Henry Plancher
  • System and process for agglomeration and processing of carbonaceous fines and dust
    Publication number: 20020014155
    Abstract: A system and process for agglomerating and processing carbonaceous fines is provided. The process comprises powdering the carbonaceous fines, mixing the powdered carbonaceous fines with an organic liquid creating a slurry, adding a predetermined amount of an aqueous electrolyte to the slurry creating agglomerated particles, settling the large agglomerated particles resulting in a settled mixture of agglomerated coal fines and reagent liquor, and separating the agglomerated coal fines from the reagent liquor.
    Type: Application
    Filed: January 24, 2001
    Publication date: February 7, 2002
    Inventors: Pradeep Agarwal, Paolo De Filippis, Temi M. Linjewile, John B. Agnew, Henry Plancher
  • Treating used automotive lubricating oil to reduce the content of suspended particulate matter, including lead
    Patent number: 4491515
    Abstract: Process for treating used lubricating oil to reduce the content of suspended particulate matter therein, characterized by contacting said used lubricating oil with a carbonyl-group containing compound in the presence of an aqueous electrolyte, separating the resulting mixture into an upper layer containing clarified oil and a lower layer containing agglomerated particulates, and recovering oil of reduced particulate content as product. Suitable carbonyl-group containing compounds include ketones, esters and aldehydes and suitable electrolytes include inorganic and organic acids, alkalis and salts.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: January 1, 1985
    Assignee: Monash University
    Inventors: John B. Agnew, John A. Barnard, Viyada Tirtaatmadja