Patents by Inventor Billy R. Rodgers

Billy R. Rodgers 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 for improving the sedimentation and filterability of coal-derived liquids
    Patent number: 4132639
    Abstract: An improvement in the separation of suspended solids from coal-derived liquids by a separations process in which solids size is a separations parameter is achieved by contacting the coal-derived liquid containing suspended solids with an effective amount of an additive selected from the group of sulfuric acid, phosphoric acid, phosphoric anhydride and salts of sulfuric and phosphoric acid, and maintaining the contacted liquid at a temperature within the range of about 150.degree.-400.degree. C and for a time sufficient to achieve the desired separation rate.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: January 2, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Sidney Katz, Billy R. Rodgers
  • Filtering coal-derived oil through a filter media precoated with particles partially solubilized by said oil
    Patent number: 4046690
    Abstract: Solids such as char, ash, and refractory organic compounds are removed from coal-derived liquids from coal liquefaction processes by the pressure precoat filtration method using particles of 85-350 mesh material selected from the group of bituminous coal, anthracite coal, lignite, and devolatilized coals as precoat materials and as body feed to the unfiltered coal-derived liquid.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: September 6, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Billy R. Rodgers, Michael S. Edwards