Retractable rudder assembly for a watercraft

Details Retractable rudder assembly for a watercraft Retractable rudder assembly for a watercraft

2006-11-14

2006-11-14

Avila, Stephen (Department: 3617)

Marine propulsion

Jet drive

Direction control for fluid jet

Reexamination Certificate

active

07134923

ABSTRACT:
The assembly includes a nozzle adapter rotatably mounted via a pair of axles onto a jet nozzle of a personal watercraft. A hinge rotatably connects a rudder and cap onto the nozzle adapter. A torsion spring on the hinge retracts and retains the rudder and cap in a position in which the rudder extends below the nozzle and nozzle adapter thereby positioning the rudder in the water below the watercraft to provide steering capability to the watercraft. The cap covers and blocks the nozzle outlet when the engine is not operative but when the engine is operative the jet stream forces thereof acting against the cap rotate the rudder upwardly so that it extends rearwardly from the watercraft and out of its steering position. The nozzle adapter includes an inner adapter attached to the nozzle and an outer adapter attached to the inner adapter. A steering structure on the inner member enables horizontal rotation thereof to laterally steer the watercraft, and a trim structure on the outer member enables vertical rotation thereof to trim the watercraft.

REFERENCES:
patent: 5362269 (1994-11-01), Leach
patent: 6086437 (2000-07-01), Murray
patent: 6302047 (2001-10-01), Cannon
patent: 6336834 (2002-01-01), Nedderman et al.
patent: 6443785 (2002-09-01), Swartz et al.
patent: 6652333 (2003-11-01), Adomeit

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