Patents by Inventor William Chafin

William Chafin 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: 10214698
    Abstract: A method providing for the selective hydroprocessing of cracked naphtha feedstock to make a low-sulfur gasoline blending component. The method includes the use of two catalytic distillation stages in combination with two stripping columns and two fixed-bed reactors integrated in a novel arrangement so as to provide for the treatment of cracked naphtha feedstock that has a high sulfur concentration to yield exceptionally low-sulfur light cracked naphtha and heavy cracked naphtha products. The desulfurized light and heavy cracked naphtha are produced with a minimal amount of hydrogenation of the olefin content and at may suitably be used as gasoline blending components.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: February 26, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Richard Gene Nelson, Raymond William Chafin, II, Richard Carey Green, Eri Ito, David William Sacks, Gerald Max Lawrence
  • Publication number: 20170101591
    Abstract: A method providing for the selective hydroproces sing of cracked naphtha feedstock to make a low-sulfur gasoline blending component. The method includes the use of two catalytic distillation stages in combination with two stripping columns and two fixed-bed reactors integrated in a novel arrangement so as to provide for the treatment of cracked naphtha feedstock that has a high sulfur concentration to yield exceptionally low-sulfur light cracked naphtha and heavy cracked naphtha products. The desulfurized light and heavy cracked naphtha are produced with a minimal amount of hydrogenation of the olefin content and at may suitably be used as gasoline blending components.
    Type: Application
    Filed: October 5, 2016
    Publication date: April 13, 2017
    Inventors: Richard Gene NELSON, Raymond William CHAFIN, II, Richard Carey GREEN, Eri ITO, David William SACKS, Gerald Max LAWRENCE
  • Publication number: 20060218835
    Abstract: A mobile sign carrier that mounts on a vehicle receiver hitch and method of use are provided. The mobile sign carrier has a base, a vertical piece and two cross pieces that fold down to form a cross shape. Four sliding brackets are provided, each having permanently attached a square, flat piece, which sliding brackets are mounted one each on each of the cross pieces and one each on the first end and the second end of the vertical piece. The sliding brackets are positioned and secured by means of a fastener to accommodate signs of different sizes. The mobile sign carrier provides a securing device for use on a vehicle with a tailgate. Safety chains further secure the vertical piece to the trailer hitch. A strobe light and night reflective tape are provided.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 5, 2006
    Inventor: William Chafin