Patents by Inventor Ray V. Oja

Ray V. Oja 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).

  • Pump attachment for outboard motors
    Patent number: 4699597
    Abstract: A shell made up of opposed halves is fitted over the propeller screw of the motor on the boat. This shell then becomes an enclosure with inlet and outlet openings at the ends. This shell with the propeller screw forms a pump with the propeller screw pumping water through the shell and through an outlet hose which is extended to the shore. One form has the inlet and outlet openings on the axis of the propeller screw and other forms include the outlet arranged tangentially or angularly. A hose can be connected to the inlet opening for bailing a boat.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: October 13, 1987
    Inventor: Ray V. Oja