US3933113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine vessel propulsion system
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1973-12-10
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Granted: 1976-01-20
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Expires: 1993-12-10
Abstract
Abstract A marine vessel is propelled by pumping water from a water intake line through a horizontal nozzle into a first generally horizontal submerged passageway containing a venturi section and extending from an internal chamber surrounding the nozzle to a submerged outlet in the hull of the vessel and admitting supplemental water into the chamber through a second generally horizontal submerged passageway extending into the chamber from a submerged inlet in the hull of the vessel and through a generally vertical passageway extending into the chamber beneath the nozzle from a bottom inlet in the hull of the vessel.
Inventors
- 👤 Henry E. Dornak, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:59
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/46; B63H11/00; B63H11/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
171 words
A waterborne vessel comprising a hull containing an internal chamber; a first generally horizontal passageway extending transversely in said hull between said chamber and a first port in one side of the hull; a second generally horizontal passageway extending transversely in said hull between said chamber and a second port in the opposite side of said hull, said first and second passageways being substantially aligned with one another and containing venturi constrictions adjacent said chamber and said chamber, said passageways and said ports being below the waterline when said vessel is in a normal loaded condition; a nozzle positioned within said chamber; means associated with said nozzle for rotating the nozzle between a first position in which the nozzle discharges into said first passageway and a second position in which the nozzle discharges into said second passageway; means for pumping water through said nozzle; and a bottom intake passageway extending upwardly into said chamber beneath said nozzle from a bottom intake port for the continuous influx of water into said chamber.
Claim 2
Dependent Claim
171 words
A waterborne vessel comprising a hull containing an internal chamber; a first generally horizontal passageway extending transversely in said hull between said chamber and a first port in one side of the hull; a second generally horizontal passageway extending transversely in said hull between said chamber and a second port in the opposite side of said hull, said first and second passageways being substantially aligned with one another and containing venturi constrictions adjacent said chamber and said chamber, said passageways and said ports being below the waterline when said vessel is in a normal loaded condition; a nozzle positioned within said chamber; means associated with said nozzle for rotating the nozzle between a first position in which the nozzle discharges into said first passageway and a second position in which the nozzle discharges into said second passageway; means for pumping water through said nozzle; and a bottom intake passageway extending upwardly into said chamber beneath said nozzle from a bottom intake port for the continuous influx of water into said chamber.
Claim 3
Dependent Claim
66 words
A vessel as defined by claim 1 including a third generally horizontal passageway extending lonitudinally in said hull between said chamber and a third port in said hull, said third generally horizontal passageway containing a venturi constriction adjacent said chamber and said means associated with said nozzle including means for rotating the nozzle into a third position in which said nozzle discharges into said third passageway.
Claim 4
Dependent Claim
28 words
A vessel as defined by claim 2 wherein said third passageway extends forward from said chamber and said third port is located near the bow of said vessel.
Claim 5
Dependent Claim
28 words
A vessel as defined in claim 2 wherein said third passageway extends aft from said chamber and said third port is located near the stern of said vessel.
Claim 6
Dependent Claim
28 words
A vessel as defined by claim 2 including a second jet nozzle positioned in a second chamber located at an intermediate point along with third generally horizontal passageway.
Claim 7
Dependent Claim
143 words
In the propulsion of a marine vessel wherein a stream of water is discharged from a jet nozzle into a generally horizontal discharge passageway which contains a venturi constriction and extends in a direction perpendicular to the longitudinal axis of said vessel from an internal chamber surrounding said nozzle to a discharge port in the hull of the vessel for the generation of thrust and wherein supplemental water is admitted into said chamber through a generally horizontal intake passageway extending into said chamber from an intake port in the hull of said vessel to increase the amount of water expelled through said discharge passageway, the improvement which comprises simultaneously admitting additional supplemental water into said chamber adjacent said nozzle through a bottom intake passageway extending upwardly into said chamber beneath the nozzle from a bottom intake port in the hull of the vessel.
Claim 8
Dependent Claim
143 words
In the propulsion of a marine vessel wherein a stream of water is discharged from a jet nozzle into a generally horizontal discharge passageway which contains a venturi constriction and extends in a direction perpendicular to the longitudinal axis of said vessel from an internal chamber surrounding said nozzle to a discharge port in the hull of the vessel for the generation of thrust and wherein supplemental water is admitted into said chamber through a generally horizontal intake passageway extending into said chamber from an intake port in the hull of said vessel to increase the amount of water expelled through said discharge passageway, the improvement which comprises simultaneously admitting additional supplemental water into said chamber adjacent said nozzle through a bottom intake passageway extending upwardly into said chamber beneath the nozzle from a bottom intake port in the hull of the vessel.
Claim 9
Dependent Claim
133 words
In the propulsion of a marine vessel wherein a stream of water is discharged from a jet nozzle into a generally horizontal discharge passageway which contains a venturi constriction and extends from an internal chamber surrounding said nozzle to a discharge port in the hull of the vessel for the generation of thrust and wherein supplemental water is simultaneously admitted into said chamber through two generally horizontal passageways extending into the chamber from two separate intake ports in the hull of said vessel to increase the amount of water expelled through said discharge passageway, the improvement which comprises simultaneously admitting additional supplemental water into said chamber adjacent said nozzle through a bottom intake passageway extending upwardly into said chamber beneath the nozzle from a bottom intake port in the hull of the vessel.
Claim 10
Dependent Claim
133 words
In the propulsion of a marine vessel wherein a stream of water is discharged from a jet nozzle into a generally horizontal discharge passageway which contains a venturi constriction and extends from an internal chamber surrounding said nozzle to a discharge port in the hull of the vessel for the generation of thrust and wherein supplemental water is simultaneously admitted into said chamber through two generally horizontal passageways extending into the chamber from two separate intake ports in the hull of said vessel to increase the amount of water expelled through said discharge passageway, the improvement which comprises simultaneously admitting additional supplemental water into said chamber adjacent said nozzle through a bottom intake passageway extending upwardly into said chamber beneath the nozzle from a bottom intake port in the hull of the vessel.
Claim 11
Dependent Claim
161 words
In the propulsion of a marine vessel wherein a stream of water is discharged from a jet nozzle into a generally horizontal discharge passageway which contains a venturi constriction and extends from an internal chamber surrounding said nozzle to a discharge port in the hull of the vessel for the generation of thrust and wherein supplemental water is admitted into said chamber through a generally horizontal intake passageway extending into said chamber from an intake port in the hull of said vessel to increase the amount of water expelled through said discharge passageway, the improvement which comprises simultaneously admitting additional supplemental water into said chamber adjacent said nozzle through a bottom intake passageway extending upwardly into said chamber beneath the nozzle from a bottom intake port in the hull of the vessel and simultaneously discharging an additional stream of water from a second jet nozzle into said generally horizontal intake passageway at a point in said passageway upstream of said chamber.
Claim 12
Dependent Claim
161 words
In the propulsion of a marine vessel wherein a stream of water is discharged from a jet nozzle into a generally horizontal discharge passageway which contains a venturi constriction and extends from an internal chamber surrounding said nozzle to a discharge port in the hull of the vessel for the generation of thrust and wherein supplemental water is admitted into said chamber through a generally horizontal intake passageway extending into said chamber from an intake port in the hull of said vessel to increase the amount of water expelled through said discharge passageway, the improvement which comprises simultaneously admitting additional supplemental water into said chamber adjacent said nozzle through a bottom intake passageway extending upwardly into said chamber beneath the nozzle from a bottom intake port in the hull of the vessel and simultaneously discharging an additional stream of water from a second jet nozzle into said generally horizontal intake passageway at a point in said passageway upstream of said chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |