Patents by Inventor Billy R. Landreth

Billy R. Landreth 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 and apparatus for measuring the amount of entrained gases in a liquid sample
    Patent number: 6598457
    Abstract: A method and an apparatus are provided for measuring the amount of entrained gases in a liquid sample. A conduit defining a volume is provided. The conduit has an inlet at a lower end thereof and an outlet at an upper end thereof. Liquid sample is made to flow into the inlet, through the conduit, and out of the outlet. The weight of the liquid sample in the conduit is determined during a flow of liquid sample through the conduit to obtain a first measurement. Thereafter, a difference between the first measurement and a predetermined weight value representing a weight of the same liquid sample flowing through the conduit but containing no entrained gases is determined to obtain a calculated weight of entrained gases in the liquid sample flowing through the conduit.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: July 29, 2003
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Raymond D. Sullivan, Billy R. Landreth
  • Method and apparatus for measuring the amount of entrained gases in a liquid sample
    Publication number: 20020144536
    Abstract: A method and an apparatus are provided for measuring the amount of entrained gases in a liquid sample. A conduit defining a volume is provided. The conduit has an inlet at a lower end thereof and an outlet at an upper end thereof. Liquid sample is made to flow into the inlet, through the conduit, and out of the outlet. The weight of the liquid sample in the conduit is determined during a flow of liquid sample through the conduit to obtain a first measurement. Thereafter, a difference between the first measurement and a predetermined weight value representing a weight of the same liquid sample flowing through the conduit but containing no entrained gases is determined to obtain a calculated weight of entrained gases in the liquid sample flowing through the conduit.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 10, 2002
    Inventors: Raymond D. Sullivan, Billy R. Landreth