Rudder device for a hydrojet vessel
OwnerJeffrey T. Walkowiakinventor
Life of this patent
Estimating the term…
Abstract
A rudder device is disclosed for a hydrojet vessel. The rudder device comprises a first mounting bracket coupled to a first hydrojet. A first rudder is coupled to the first hydrojet and the first mounting bracket. A second mounting bracket is coupled to a second hydrojet. A second rudder is coupled to the second hydrojet and the second mounting bracket. A coupling rod is pivotably coupled to the first hydrojet, the second hydrojet and a hull rudder for pivoting in alignment and in unison the first rudder with the first hydrojet and the second rudder with the second hydrojet relative to the hull rudder. The first rudder and the second rudder provide steerage to the vessel during non directional thrust absent from the first hydrojet and the second hydrojet.
Claims9
A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising:
- a first general U-shaped mounting bracket coupled to the first hydrojet and partially encircling the first hydrojet,
- a first rudder pivotably coupled to the first hydrojet by a first primary horizontal pivot;
- a first side plate pivotably coupled to the first hydrojet by a first secondary horizontal pivot;
- a first coupling plate coupled between said first rudder and said first side plate;
- a first coil spring engaging said first primary horizontal pivot for promoting said first rudder and said first side plate being positioned in a non-pivoted position;
- a second general U-shaped mounting bracket coupled to the second hydrojet and partially encircling the second hydrojet;
- a second rudder pivotably coupled to the second hydrojet by a second primary horizontal pivot;
- a second side plate pivotably coupled to the second hydrojet by a second secondary horizontal pivot;
- a second coupling plate coupled between said second rudder and said second side plate;
- a second coil spring engaging said second primary horizontal pivot for promoting said second rudder and said second side plate being positioned in a non-pivoted position;
- and
- said first rudder with the first hydrojet and said second rudder with the second hydrojet pivoting in alignment and in unison with the hull rudder for improving the steerability of the vessel.
A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising:
- a first general U-shaped mounting bracket coupled to the first hydrojet and partially encircling the first hydrojet;
- a first rudder pivotably coupled to the first hydrojet by a first primary horizontal pivot;
- a first side plate pivotably coupled to the first hydrojet by a first secondary horizontal pivot;
- a first coupling plate coupled between said first rudder and said first side plate;
- a first coil spring engaging said first primary horizontal pivot for promoting said first rudder and said first side plate being positioned in a non-pivoted position;
- a second general U-shaped mounting bracket coupled to the second hydrojet and partially encircling the second hydrojet;
- a second rudder pivotably coupled to the second hydrojet by a second primary horizontal pivot;
- a second side plate pivotably coupled to the second hydrojet by a second secondary horizontal pivot;
- a second coupling plate coupled between said second rudder and said second side plate;
- a second coil spring engaging said second primary horizontal pivot for promoting said second rudder and said second side plate being positioned in a non-pivoted position;
- said first rudder with the first hydrojet and said second rudder with the second hydrojet pivoting in alignment and in unison with the hull rudder for improving the steerability of the vessel;
- a first steering assist rudder extending forward of said first rudder;
- said first steering assist rudder positioned ahead of the first vertical pivot for assisting in pivoting the first hydrojet during forward displacement of the vessel through a body of water;
- a second steering assist rudder extending forward of said second rudder;
- and
- said second steering assist rudder positioned ahead of the second vertical pivot for assisting in pivoting the second hydrojet during forward displacement of the vessel through a body of water.
A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising:
- a first mounting bracket coupled to the first hydrojet;
- a first rudder pivotably coupled to the first hydrojet;
- a first side plate pivotably coupled to the first hydrojet;
- a first coupling plate coupled between said first rudder and said first side plate;
- a first spring engaging said first rudder for promoting said first rudder and said first side plate being positioned in a non-pivoted position;
- a second mounting bracket coupled to the second hydrojet;
- a second rudder pivotably coupled to the second hydrojet;
- a second side plate pivotably coupled to the second hydrojet;
- a second coupling plate coupled between said second rudder and said second side plate;
- a second spring engaging said second rudder for promoting said second rudder and said second side plate being positioned in a non-pivoted position;
- said first rudder with the first hydrojet and said second rudder with the second hydrojet pivoting with the hull rudder for improving the steerability of the vessel.
A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising:
- a first mounting bracket coupled to the first hydrojet;
- a first rudder coupled to the first hydrojet;
- a first side plate coupled to the first hydrojet;
- a first coupling plate coupled between said first rudder and said first side plate;
- a second mounting bracket coupled to the second hydrojet;
- a second rudder coupled to the second hydrojet;
- a second side plate coupled to the second hydrojet;
- a second coupling plate coupled between said second rudder and said second side plate;
- a first steering assist rudder coupled to said first mounting bracket;
- said first steering assist rudder positioned ahead said first rudder for assisting in pivoting the first hydrojet during forward displacement of the vessel through a body of water;
- a second steering assist rudder coupled to said second mounting bracket;
- and
- said second steering assist rudder positioned ahead of said second rudder for assisting in pivoting the second hydrojet during forward displacement of the vessel through a body of water.
Dependencies are inferred from the claim text.