Patents by Inventor Janis I. Viksne

Janis I. Viksne 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 tank sounding tube check valve
    Patent number: H438
    Abstract: A shipboard fuel tank sounding tube that allows safer operation by preveng overflow of the fuel tank during filling yet allows the passage of depth sounding rods and sampling probes wherein a light weight floating ball check value located on a prescribed path near the top of the tank is lifted upon filling of the tank, to a seated position yet is shifted upon entrance of a depth sounding rod and sampling probe to check tank fullness.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: March 1, 1988
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Janis I. Viksne, Thomas S. Allen