Patents by Inventor Harold K. Ebbrell

Harold K. Ebbrell 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).

  • Storage installation for liquefied gas
    Patent number: 3930590
    Abstract: In a storage installation for liquefied gas in a storage vessel surrounded by a wall which forms a collecting space around the vessel, the surfaces of the ground of the collecting space and/or the wall comprise a layer of a heat insulating material, whereby any liquefied gas collected in said collecting space evaporates more slowly thereby reducing hazard from gas vaporized in said collecting space.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: January 6, 1976
    Assignee: Shell Oil Company
    Inventor: Harold K. Ebbrell
  • Determination of the density of a hydrocarbon liquid at elevated pressure
    Patent number: H490
    Abstract: A method and apparatus are provided whereby a pressure vessel of known internal volume is filled with a hydrocarbon liquid at elevated pressure and a measured temperature. When filled, a valve to a connected buffer vessel is opened to prevent any risk of overpressure caused by a rise in temperature after filling. The whole assembly is weighed before and after filling. The difference in mass, divided by the known internal volume of the vessel and associated pipework, provides the density of the confined hydrocarbon liquid.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: July 5, 1988
    Assignee: Shell Oil Company
    Inventor: Harold K. Ebbrell