Patents by Inventor Leno B. Hansen

Leno B. Hansen 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).

  • Rotating high-pressure spray head and optional drill
    Patent number: 5351891
    Abstract: A high-pressure water spray gun is disclosed for use, for example, for fire-fighting. The spray gun has a cylindrical body for connection to a supply hose and a spray lead rotatable in the body by water issuing through pairs of jet nozzles around the barrel of the spray head. In each pair of nozzles, the axes of the nozzles are convergent and being closest to each other in a mixing region at, or just outside of, the outer surface of the barrel. At least one nozzle has a non-radial axis. The spray head may be normally housed in the body, being moved to an exposed working position by water pressure against a spring.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: October 4, 1994
    Inventors: Leno B. Hansen, Bjorn R. Hansen