In Petroleum Oil, Hydrocarbon Oil Or Organic Fluid Patents (Class 436/40)
  • Water-in-oil testing apparatus
    Patent number: 4557899
    Abstract: Apparatus is described which is useful for determining the water content of a petroleum product. The apparatus includes a reaction vial disposed within a tubular member containing a fluid. As the petroleum product reacts with a reactant in the vial a gas is produced in proportion to the amount of water present in the sample. The gas displaces a liquid from the tubular member, and the amount of liquid displaced is proportional to the amount of water which was present in the petroleum sample.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: December 10, 1985
    Assignee: Hach Company
    Inventors: David J. Schoonover, Tillman F. Taylor, Jr.
  • Process and apparatus for the rapid determination of the characteristics of a petroleum pollutant
    Patent number: 4388407
    Abstract: Process and apparatus for on the site determination of the characteristics of an oil-pollutant containing water. The determinaton includes the use of a combination of devices designed to permit the on-site determination of the water content and specific gravity of the mixture of water and pollutant, and the initial boiling point of water-free pollutant.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: June 14, 1983
    Assignee: Labofina, S.A.
    Inventors: Andre Lepain, Robert Bronchart, Roger Remacle