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US 11,535,353 B2Granted
Water pump for watercraft
AssigneeSeajet Propulsion, Inc.
InventorsMichael Railey, Leonard Stobar
Life of this patent
Estimating the term…
Abstract
A self-propelling watercraft system is provided. The watercraft has a base with a plurality of sidewalls extending from the base to form a cockpit. The base also has a recess, where a pump can detachably connect to the hull within the recess. The pump has an intake valve on a first end and a nozzle on a second end that is opposite the first end. The intake valve can intake water. The nozzle can jettison water received in the pump from the intake valve and agitate water surrounding the nozzle.
Claims20
A self-propelling watercraft, comprising:
- a hull having a base and a plurality of walls forming a cockpit, the base having a recess:
- a pump system detachably connected to the hull and positioned within the recess, the pump system comprising:
- a first pump comprising:
- an intake port on a first end of the first pump, the intake port configured to intake water;
- a nozzle on a second end of the first pump opposite the first end, at least a portion of the nozzle positioned within the recessed end configured to jettison water received in the pump through the intake port;
- and
- a reversible impeller configured to operate in forward and reverse rotational directions, the impeller having a symmetrical design such that the impeller generates substantially same thrust in the forward and in the reverse rotational directions when operating at same number of revolutions per minute;
- and
- a second pump positioned adjacent the first pump such that the first and second pumps are about parallel, the second pump comprising:
- an intake port on a first end of the second pump, the intake port configured to intake water;
- a nozzle on a second end of the second pump opposite the first end, at least a portion of the nozzle positioned within the recessed end configured to jettison water received in the pump through the intake port;
- and
- a reversible impeller configured to operate in forward and reverse rotational directions, the impeller having a symmetrical design such that the impeller generates substantially same thrust in the forward and in the reverse rotational directions when operating at same number of revolutions per minute.
10 more elements
A self-propelling watercraft, comprising:
- a hull having a base and a plurality of walls forming a cockpit, the base having a recess:
- a pump system connected to the hull and positioned within the recess, the pump system comprising:
- a first pump comprising:
- an intake port on a first end of the first pump, the intake port configured to intake water;
- a nozzle on a second end of the first pump opposite the first end, at least a portion of the nozzle positioned within the recessed end configured to jettison water received in the pump through the intake port;
- and
- a reversible impeller configured to operate in forward and reverse rotational directions, the impeller having a symmetrical design such that the impeller generates substantially same thrust in the forward and in the reverse rotational directions when operating at same number of revolutions per minute;
- and
- a second pump positioned adjacent the first pump such that the first and second pumps are about parallel, the second pump comprising:
- an intake port on a first end of the second pump, the intake port configured to intake water;
- a nozzle on a second end of the second pump opposite the first end, at least a portion of the nozzle positioned within the recessed end configured to jettison water received in the pump through the intake port;
- and
- a reversible impeller configured to operate in forward and reverse rotational directions, the impeller having a symmetrical design such that the impeller generates substantially same thrust in the forward and in the reverse rotational directions when operating at same number of revolutions per minute.
10 more elements
A self-propelling watercraft, comprising:
- a hull having a base and a plurality of walls forming a cockpit, the base having a recess:
- a pump system connected to the hull and positioned within the recess, the pump system comprising:
- a pump comprising:
- an intake port on a first end of the pump, the intake port configured to intake water;
- a nozzle on a second end of the pump opposite the first end, at least a portion of the nozzle positioned within the recessed end configured to jettison water received in the pump through the intake port;
- and
- a reversible impeller configured to operate in forward and reverse rotational directions, the impeller having a symmetrical design such that the impeller generates substantially same thrust in the forward and in the reverse rotational directions when operating at same number of revolutions per minute.
4 more elements
Dependencies are inferred from the claim text.