US5352139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the propulsion of water vehicles
Assignee: Franchi SpA
•
Filing: 1990-05-23
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Granted: 1994-10-04
•
Expires: 2010-05-23
Abstract
Abstract An apparatus is disclosed for the propulsion of water vehicles. A magnet field as well as an electric field with essentially perpendicular field lines are produced in a pipe through which surrounding water flows. In this manner, a force is exercised upon charge carriers within the surrounding water and this force is used as a propulsion force for the water vehicle. The pipe is surrounded by a solenoid coil which is arranged essentially coaxially to the pipe. A first electrode is arranged essentially along the axis of the pipe and a voltage source is switched between the electrode and the pipe, acting as a second electrode. An Archimedes' screw is arranged in the cylindrical gap between the electrode and the pipe in order to deflect the surrounding water circulating about the axis into an axial direction, or the screw is rotationally rigidly connected to a moving conductor arranged perpendicularly to the direction of the magnet field.
Inventors
- 👤 Gunther Laukien
- 👤 Arne Kasten
- 👤 Michael Westphal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:51
CPC Classifications
H; H02; H02K; H02K31/00; H02K31/02; B; B63; B63H; B63H11/00; B63H11/02; B63H11/025; H02K44/00; H02K44/02; H02K44/04
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
142 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; and hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction.
Claim 2
Dependent Claim
142 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; and hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction.
Claim 3
Dependent Claim
15 words
The water vehicle of claim 1, wherein said pipe is designed as said second electrode.
Claim 4
Dependent Claim
14 words
The water vehicle of claim 1, wherein ionization means are connected with said pipe.
Claim 5
Dependent Claim
25 words
The water vehicle of claim 3, wherein said ionization means are designed for introducing a substance into said surrounding water for increasing its electrical conductivity.
Claim 6
Dependent Claim
72 words
The apparatus of claim 1, wherein two propulsion units configured from said solenoid magnet coil and said pipe are arranged upon a common frame parallel to each other, with magnetic fields produced from said solenoid coils being directed oppositely to each other, said hydrodynamic vane means being pitched in a common direction and said electrical fields being directed oppositely to each other for making the total magnetic dipole moment thereof essentially zero.
Claim 7
Dependent Claim
62 words
The apparatus of claim 1, wherein two propulsion units configured from said solenoid magnet coil and said pipe are arranged upon a common frame parallel to each other, with magnetic fields produced from said solenoid coils being directed oppositely to each other, said hydrodynamic vane means being pitched oppositely to each other and said electrical fields being directed in a common direction.
Claim 8
Dependent Claim
163 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction; bearing means for rotatably journalling said hydrodynamic vane means within said pipe; and a propulsion motor for driving said hydrodynamic vane means.
Claim 9
Dependent Claim
163 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction; bearing means for rotatably journalling said hydrodynamic vane means within said pipe; and a propulsion motor for driving said hydrodynamic vane means.
Claim 10
Dependent Claim
165 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; further electrodes arranged in a stray field generated by said magnet coil; a voltage source arranged to be switched between said first electrode and said second electrode, and between said first electrode and said further electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; and hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction.
Claim 11
Dependent Claim
165 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; further electrodes arranged in a stray field generated by said magnet coil; a voltage source arranged to be switched between said first electrode and said second electrode, and between said first electrode and said further electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; and hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction.
Claim 12
Dependent Claim
161 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis, said pipe, further, having a cross-section enlarging in a direction of flow of said water along said pipe; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and said second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; and hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction.
Claim 13
Dependent Claim
161 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis, said pipe, further, having a cross-section enlarging in a direction of flow of said water along said pipe; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and said second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; and hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction.
Claim 14
Dependent Claim
16 words
The water vehicle of claim 9, wherein said pipe is provided with a side intake opening.
Claim 15
Dependent Claim
182 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and said second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction; and wherein a propulsion unit, configured from said solenoid magnet coil and said pipe, is rotatably disposed at an angle with respect to a ship hull's longitudinal axis such that said propulsion unit may be swivelled by varying said angle.
Claim 16
Dependent Claim
182 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein; a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; a voltage source arranged to be switched between said first and said second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction; hydrodynamic vane means arranged within said cylindrical gap and inclined relative to a radial plane under a pitch angle with respect to said longitudinal axis for deflecting circularly flowing water into an axial direction; and wherein a propulsion unit, configured from said solenoid magnet coil and said pipe, is rotatably disposed at an angle with respect to a ship hull's longitudinal axis such that said propulsion unit may be swivelled by varying said angle.
Claim 17
Dependent Claim
140 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a magnet coil arranged around said pipe for generating a magnetic field therein, said magnetic field having a first direction in a predetermined spatial area within said pipe; hydrodynamic vane means arranged within said pipe and inclined under a pitch angle relative to a radial plane with respect to said longitudinal axis; bearing means for allowing said hydrodynamic vane means to rotate within said pipe; an electrical conductor rigidly connected to said hydrodynamic vane means and extending through said predetermined spatial area within said pipe in a second direction perpendicular to said first direction; and a current source arranged to be connected to said electrical conductor for conducting electrical current therethrough.
Claim 18
Dependent Claim
140 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a magnet coil arranged around said pipe for generating a magnetic field therein, said magnetic field having a first direction in a predetermined spatial area within said pipe; hydrodynamic vane means arranged within said pipe and inclined under a pitch angle relative to a radial plane with respect to said longitudinal axis; bearing means for allowing said hydrodynamic vane means to rotate within said pipe; an electrical conductor rigidly connected to said hydrodynamic vane means and extending through said predetermined spatial area within said pipe in a second direction perpendicular to said first direction; and a current source arranged to be connected to said electrical conductor for conducting electrical current therethrough.
Claim 19
Dependent Claim
95 words
The water vehicle of claim 12, wherein said magnet coil is a solenoid magnet coil arranged around said pipe in an essentially coaxial relationship for generating an axially oriented magnetic field therein, the apparatus further comprising: a first electrode extending essentially along said longitudinal axis; a second electrode having essentially cylindrical shape and extending coaxially to said first electrode with a cylindrical gap formed therebetween; and a voltage source arranged to be switched between said first and said second electrodes for generating an electrical field therebetween, said electrical field being directed in a radial direction.
Claim 20
Dependent Claim
72 words
The apparatus of claim 13, wherein two propulsion units configured from said solenoid magnet coil and said pipe are arranged upon a common frame parallel to each other, with magnetic fields produced from said solenoid coils being directed oppositely to each other, said hydrodynamic vane means being pitched in a common direction and said electrical fields being directed oppositely to each other for making the total magnetic dipole moment thereof essentially zero.
Claim 21
Dependent Claim
62 words
The apparatus of claim 13, wherein two propulsion units configured from said solenoid magnet coil and said pipe are arranged upon a common frame parallel to each other, with magnetic fields produced from said solenoid coils being directed oppositely to each other, said hydrodynamic vane means being pitched oppositely to each other and said electrical fields being directed in a common direction.
Claim 22
Dependent Claim
175 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a magnet coil arranged around said pipe for generating a magnetic field therein, said magnetic field having a first direction in a predetermined spatial area within said pipe, said magnet coil having two solenoid magnet coils arranged along a common axis and axially separated from each other; hydrodynamic vane means arranged within said pipe and inclined under a pitch angle relative to a radial plane with respect to said longitudinal axis; bearing means for allowing skid hydrodynamic vane means to rotate within said pipe; an electrical conductor rigidly connected to said hydrodynamic vane means and extending through said predetermined spatial area within said pipe in a second direction perpendicular to said first direction, said conductor extending in an axial direction in an axial gap between said solenoid magnet coils; and a current source arranged to be connected to said electrical conductor for conducting electrical current therethrough.
Claim 23
Dependent Claim
175 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a magnet coil arranged around said pipe for generating a magnetic field therein, said magnetic field having a first direction in a predetermined spatial area within said pipe, said magnet coil having two solenoid magnet coils arranged along a common axis and axially separated from each other; hydrodynamic vane means arranged within said pipe and inclined under a pitch angle relative to a radial plane with respect to said longitudinal axis; bearing means for allowing skid hydrodynamic vane means to rotate within said pipe; an electrical conductor rigidly connected to said hydrodynamic vane means and extending through said predetermined spatial area within said pipe in a second direction perpendicular to said first direction, said conductor extending in an axial direction in an axial gap between said solenoid magnet coils; and a current source arranged to be connected to said electrical conductor for conducting electrical current therethrough.
Claim 24
Dependent Claim
178 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a magnet coil arranged around said pipe for generating a magnetic field therein, said magnetic field having a first direction in a predetermined spatial area within said pipe; hydrodynamic vane means arranged within said pipe and inclined under a pitch angle relative to a radial plane with respect to said longitudinal axis; bearing means for allowing said hydrodynamic vane means to rotate within said pipe; an electrical conductor rigidly connected to said hydrodynamic vane means and extending through said predetermined spatial area within said pipe in a second direction perpendicular to said first direction; a current source arranged to be connected to said electrical conductor for conducting electrical current therethrough; and wherein a propulsion unit, configured from said magnet coil and said pipe, is rotatably disposed at an angle with respect to said ship hull's longitudinal axis, such that said propulsion unit may be swivelled by varying said angle.
Claim 25
Dependent Claim
178 words
A water vehicle, comprising: a hull; an open-ended pipe connected to said hull and positioned to be immersed in water surrounding said vehicle, said pipe defining a longitudinal axis; a magnet coil arranged around said pipe for generating a magnetic field therein, said magnetic field having a first direction in a predetermined spatial area within said pipe; hydrodynamic vane means arranged within said pipe and inclined under a pitch angle relative to a radial plane with respect to said longitudinal axis; bearing means for allowing said hydrodynamic vane means to rotate within said pipe; an electrical conductor rigidly connected to said hydrodynamic vane means and extending through said predetermined spatial area within said pipe in a second direction perpendicular to said first direction; a current source arranged to be connected to said electrical conductor for conducting electrical current therethrough; and wherein a propulsion unit, configured from said magnet coil and said pipe, is rotatably disposed at an angle with respect to said ship hull's longitudinal axis, such that said propulsion unit may be swivelled by varying said angle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-03 | 1998-04-04 | 1998-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-03 | 2002-04-04 | 2002-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-03 | 2006-04-04 | 2006-10-04 | $7700.00 | Window Closed / Lapsed |