Patents by Inventor John J. Wakefield, Jr.

John J. Wakefield, Jr. 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 determining and controlling the amount of finely divided particulate solids added to a stream of fluid
    Patent number: 4911824
    Abstract: The amount of finely divided particulate solids added to a stream of fluid to form a mixture of the particulate solids and the fluid is determined by a method comprising (a) determining the temperature and quantity of fluid in a stream of fluid; (b) determining the temperature of the particulate solids; (c) determining the temperature of the mixture; and (d) calculating the amount of the particulate solids in the mixture. The method can also be used to control the amount of finely divided particulate solids added to the stream of a fluid. The fluid is at a different temperature than the finely divided solids.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: March 27, 1990
    Assignee: Atlantic Richfield Company
    Inventor: John J. Wakefield, Jr.
  • Method for determining and controlling the amount of finely divided particulate solids added to a stream of fluid
    Patent number: 4840726
    Abstract: The amount of finely divided particulate solids added to a stream of fluid to form a mixture of the particulate solids and the fluid is determined by a method comprising (a) determining the temperature and quantity of fluid in a stream of fluid; (b) determining the temperature of the particulate solids; (c) determining the temperature of the mixture; and (d) calculating the amount of the particulate solids in the mixture. The method can also be used to control the amount of finely divided particulate solids added to the stream of a fluid. The fluid is at a different temperature than the finely divided solids.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: June 20, 1989
    Assignee: Atlantic Richfield Company
    Inventor: John J. Wakefield, Jr.