TODAY’S PATENT- JET-PROPULSION WATERCRAFT

The Jet-Propelled Watercraft was invented by Yoshimoto Matsuda and Yukio Asakura, patented by the USPTO on the 20^th of April, 2004, bearing the patent number US20030066469A1.

The present invention relates to a jet-propulsion watercraft such as a personal watercraft (PWC) which ejects water rearward and planes on a water surface as the resulting reaction. More particularly, the present invention relates to a jet-propulsion watercraft comprising a device that can maintain steering capability even when the throttle is operated in the closed position and propulsion force is thereby reduced.

The watercraft has been widely used in leisure, sport, rescue activities, and the like. The jet-propulsion watercraft is configured to have a water jet pump that pressurizes and accelerates water sucked from a water intake generally provided on a bottom of a hull and ejects it rearward from an outlet port. Thereby, the watercraft is propelled. When the throttle is moved to a substantially fully closed position and the water ejected from the water jet pump is thereby reduced, the propulsion force necessary for turning the watercraft is correspondingly reduced, and the steering capability of the watercraft is therefore reduced until the throttle is re-opened.

To solve the above-described condition, the present invention disclosed a jet-propulsion watercraft comprising a steering component to mechanically create steering capability even when the throttle is moved to a substantially fully closed position and the water ejected from the water jet pump is thereby reduced.