Patents by Inventor Harald Hoksaas

Harald Hoksaas 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).

  • Fluid indicator for a containment vessel
    Patent number: 4880982
    Abstract: A fluid indicator for use in a containment vessel. A sensor body is movable by a drive relative to the vessel. An indicator automatically indicates the location of the sensor body relative to the vessel. A passage is in the body through which fluid from the vessel can be viewed and a light emitter is positioned in the body so as to direct a beam through the fluid. A light sensor also positioned in the body receives light after it passes through the fluid and produces a signal in response thereto.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: November 14, 1989
    Assignee: Impex Production & Development A/S (Ltd.)
    Inventor: Harald Hoksaas