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US 12,304,597 B2Granted
Watercraft
AssigneeCAYAGO TEC GmbH
InventorHans-Peter Walpurgis
Life of this patent
Estimating the term…
Abstract
A watercraft has a hull which, in the area of the deck, has a support on which parts of the upper body of a user can rest and where the user can hold on to handles. A flow channel is defined on the hull and a propelling screw is disposed in the flow channel. The flow channel has an intake port and, downstream of the propelling screw, a jet outlet in the stern area. A support body is disposed on the stern area in such a way that the support body extends the support by means of its support surface. In such a watercraft, a considerable increase in traveling speed can be achieved if provision is made for at least one sliding surface to be provided on the underside of the support body and for the support body to be rigidly connected to the hull.
Claims21
A watercraft, comprising:
- a hull including a stern and a bow, the hull including a flow channel having an intake port and a jet outlet, and the hull including a deck including a support configured such that an upper body of a user can rest on the support;
- a plurality of handles attached to the hull such that the user resting on the support may grip the handles;
- a propelling screw disposed in the flow channel between the intake port and the jet outlet;
- and
- a support body rigidly connected to the stern of the hull at a rigid connection, the support body including a support surface extending rearward from the support of the hull, the support body further including at least one sliding surface on an underside of the support body;
- wherein the jet outlet of the flow channel is configured such that a water jet generated by the propelling screw is guided along the underside of the support body;
- and
- wherein the underside of the support body includes a depression configured such that the depression partially takes in and guides the water jet during operation of the watercraft.
5 more elements
A watercraft, comprising:
- a hull including a stern and a bow, the hull including a flow channel having an intake port and a jet outlet, and the hull including a deck including a support configured such that an upper body of a user can rest on the support;
- a plurality of handles attached to the hull such that the user resting on the support may grip the handles;
- a propelling screw disposed in the flow channel between the intake port and the jet outlet;
- and
- a support body rigidly connected to the stern of the hull at a rigid connection, the support body including a support surface extending rearward from the support of the hull, the support body further including at least one sliding surface on an underside of the support body;
- wherein the at least one sliding surface includes first and second sliding surfaces disposed on opposite sides of a central longitudinal axis of the support body;
- and
- wherein the hull includes a bottom hull including water guidance surfaces extending in a direction from the bow toward the stern, the water guidance surfaces including a transition adjacent the stern into the sliding surfaces of the support body.
5 more elements
A watercraft, comprising:
- a hull including a stern and a bow, the hull including a flow channel having an intake port and a jet outlet, and the hull including a deck including a support configured such that an upper body of a user can rest on the support;
- a plurality of handles attached to the hull such that the user resting on the support may grip the handles;
- a propelling screw disposed in the flow channel between the intake port and the jet outlet;
- and
- a support body rigidly connected to the stern of the hull at a rigid connection, the support body including a support surface extending rearward from the support of the hull, the support body further including at least one sliding surface on an underside of the support body:
- wherein the hull includes bilateral projections adjacent the stern;
- wherein the support body is delimited by lateral edges;
- and
- wherein the bilateral projections project transversely to a central longitudinal axis of the hull beyond the lateral edges at least where the support body is connected to the stern of the hull.
6 more elements
A watercraft, comprising:
- a hull including a stern and a bow, the hull including a flow channel having an intake port and a jet outlet, and the hull including a deck including a support configured such that an upper body of a user can rest on the support;
- a plurality of handles attached to the hull such that the user resting on the support may grip the handles;
- a propelling screw disposed in the flow channel between the intake port and the jet outlet;
- and
- a support body rigidly connected to the stern of the hull at a rigid connection, the support body including a support surface extending rearward from the support of the hull, the support body further including at least one sliding surface on an underside of the support body:
- wherein the hull includes a flooding compartment configured such that during travel of the watercraft in a body of water the flooding compartment can be filled with water via a plurality of water inlet openings to the body of water.
3 more elements
A watercraft, comprising:
- a hull including a stern and a bow, the hull including a flow channel having an intake port and a jet outlet, and the hull including a deck including a support configured such that an upper body of a user can rest on the support;
- a plurality of handles attached to the hull such that the user resting on the support may grip the handles;
- a propelling screw disposed in the flow channel between the intake port and the jet outlet;
- and
- a support body rigidly connected to the stern of the hull at a rigid connection, the support body including a support surface extending rearward from the support of the hull, the support body further including at least one sliding surface on an underside of the support body;
- wherein the hull includes a bottom hull including water guidance surfaces extending in a direction from the bow toward the stern;
- wherein the bottom hull includes a bulge and the flow channel is at least partially defined within the bulge;
- and
- wherein the water guidance surfaces are disposed on both sides of the bulge.
6 more elements
A watercraft, comprising:
- a hull including a stern and a bow, the hull including a flow channel having an intake port and a jet outlet, and the hull including a deck including a support configured such that an upper body of a user can rest on the support;
- a plurality of handles attached to the hull such that the user resting on the support may grip the handles;
- a propelling screw disposed in the flow channel between the intake port and the jet outlet;
- and
- a support body rigidly connected to the stern of the hull at a rigid connection, the support body including a support surface extending rearward from the support of the hull, the support body further including at least one sliding surface on an underside of the support body;
- wherein the hull includes a bulge on a bottom of the hull and the flow channel is at least partially defined within the bulge;
- and
- wherein the watercraft further includes at least one stabilizing fin defined on the bulge.
5 more elements
Dependencies are inferred from the claim text.