EP0837817B1 - Verfahren zum betreiben eines segelschiffes und segelschiff - Google Patents
Verfahren zum betreiben eines segelschiffes und segelschiff Download PDFInfo
- Publication number
- EP0837817B1 EP0837817B1 EP96929174A EP96929174A EP0837817B1 EP 0837817 B1 EP0837817 B1 EP 0837817B1 EP 96929174 A EP96929174 A EP 96929174A EP 96929174 A EP96929174 A EP 96929174A EP 0837817 B1 EP0837817 B1 EP 0837817B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sail
- keel
- sailing
- boat
- sailing boat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000008901 benefit Effects 0.000 description 8
- 238000012549 training Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001141 propulsive effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
- B63B15/0083—Masts for sailing ships or boats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H9/00—Marine propulsion provided directly by wind power
- B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
- B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
- B63H9/068—Sails pivotally mounted at mast tip
Definitions
- the invention relates to a method for low-drift or even drift-free Operating a sailing ship with a keel fin with one outside the midships plane held sail that can be adjusted to the wind, in which the entire Rigging including the horizontally and vertically swiveling mast arm and the Sail is brought into an optimal total strength position and held.
- the invention also relates to a sailing ship with a hull with a lowerable Keel fin and a foldable, swiveling mast arm and the attached Sail.
- the vehicle's own weight acts here with its distance from the side “tipping edge" of the vehicle. All multihull boats, as well as catamarans and trimarans and boats with side swimming or In this way, skid arms provide the necessary stability for compensation the heeling moments caused by the wind.
- From DE-OS 42 38 786.8 rigging for watercraft is known it allows the sail or sails to be held outside the midships plane and against to make the wind leaning by using an isosceles triangular sail is used to span the middle with a tree and that with the baseline as Luff held in an arbitrarily positionable and adjustable frame and above one foldable and pivotable cantilever is held as a mast.
- Such a ship or such rigging is possible by wind power or to somewhat reduce the torque emanating from the sail.
- By appropriate Position of the sail you can turn the line of force by the height of the Roll axis of the ship lead, so that the total force of the sail a small or even no longer has a lever arm for heeling the ship.
- the keel which acts as the wing serves to generate a buoyancy in the water a certain angle of attack.
- This angle of attack arises in today's constructions in which the Keel fin is firmly connected to the hull, automatically by the fact that Ship drifts, i.e. does not move in the direction of its longitudinal axis. It turns out today this drift angle is only optimal in very rare cases. It is disadvantageous for everyone In case the entire hull has to go through this angle. Since he's stuck with the Hull is connected, the entire hull must go through this angle of attack, whereby the sailing ship no longer travels in its longitudinal direction, but instead obliquely to it. This creates considerable resistance and reduces speed.
- the invention is therefore based on the object of a method and a sailing ship to create a sailing without heeling torque and without tilting of the ship.
- the object is achieved in that that provided by the sail Total force determined and that then the keel fin, which has a turret and a Mast arm is connected to the sail, in terms of effective area and / or curvature and / or profile shape and / or angle of attack is adapted to the position of the sail, that the total force generated by the keel fin is the projection of the total force of the sail is directed exactly opposite to the horizontal plane and at the same time the ratio of keel fin buoyancy to drag is maximized while the hull remains exactly in the direction of travel.
- the leading edge of the sail is always perpendicular to the apparent wind and the sail it is also set so that the line of force of the total power of the sail is the lateral plan cuts below the lateral pressure point and / or forwards or aft or runs to the side of the lateral plan. Because of this execution of the process the sail can be brought into a position that determines the total force makes the sail possible, so that in turn the corresponding change on the keel with the necessary security and according to a precisely definable pattern makes possible.
- Another embodiment of the invention provides that the keel with the Sail outgoing forces and with the relative speed of the water flow corresponding automatically according to the size of the active area and / or the angle of attack and / or the profile is set.
- the automatic has the advantage that all different components can be taken into account in such a way that this results in the optimal effect for the "drive" of the sailing ship.
- a sailing ship in which the Keel is designed as a multi-part, ballast-free keel fin, which in its entirety in the hull is retractable and pivotable relative to the ship's longitudinal axis and their Parts are connected via hinges resulting in a changeable curvature.
- the Keel is designed as a multi-part, ballast-free keel fin, which in its entirety in the hull is retractable and pivotable relative to the ship's longitudinal axis and their Parts are connected via hinges resulting in a changeable curvature.
- the keel fin can be pivoted overall, so that the angle of attack relative to the flow is changed accordingly and finally the keel fin as such can also be used Requirement can be included in the hull or lowered from it, thereby the effective area can be changed according to the measurements.
- the profile shape to change the keel fin this being achieved according to the invention by that the keel fin as a whole or its parts are also designed to be changeable in the profile shape are. This is achieved in that the parts of the keel fin are inflatable or are shrink-fit, so that the profile shape corresponds to the requirements changes.
- the keel fin is expediently pivotable by up to 90 ° on each side connected to the hull or turret after each Side, so that a lateral movement of the hull during mooring and disembarkation is achievable.
- the second keel fin is used especially when driving the engine, if a rudder action is required or if, as mentioned, with strong waves the directional stability of the ship is to be improved.
- the keel fin is made in three parts, wherein the middle part has the pivot axis and the profile nose and the rear Fin part are hinged to the middle part.
- the middle part has the pivot axis and the profile nose and the rear Fin part are hinged to the middle part.
- the individual parts of the keel fin can be connected to each other, for example connected by an outer skin, or they can also be separate parts, which can be pivoted accordingly with one another via the hinges get connected.
- the mast arm can be pivoted horizontally and vertically and rotatably connected to the ship deck about its longitudinal axis via a universal joint and is also variable in length and fixable in any position.
- the sail as such can be placed in any position far outside the hull be maneuvered, whereby as mentioned about the change or adaptation the keel fin ensures the position of the hull with prevented drift.
- a form that is particularly favorable for the task of the sail is achieved if External trees that can be blocked on the frame by hinges and equipped with deflection rollers are articulated.
- the sail can thus have a more aerodynamic, rectangular shape Be given form.
- the frame designed as a profile nose forms a "thick" wing with two sails that can be rolled up in the frame Curvature and its ratio of length to depth (width) can be changed.
- the device can be built more cheaply and easily, if one Reffwelle picks up two sailcloths, which are at the rear edge of the frame through a right angle sheet metal with rounded edges is held to the canvas. This makes it possible for the sails to hit the desired profile thickness at a distance to hold, it is further of advantage if the canvas is opened and closed individually can be developed in order to achieve a targeted response to the respective wind conditions To have power absorbed by the sailing ship.
- the invention is characterized in particular by the fact that a method Operating a sailing ship and a sailing ship are created that are sailing without allow adverse heeling torque while giving an opportunity to keep the sailing ship or the hull horizontal, so that overall the comfort and safety of such a sailing ship is significantly increased, quite apart from that an optimal use of the force exerted by the wind is possible.
- FIG. 1 shows the principle of the method according to the invention.
- the sailing ship 1 or the hull 2 is shown seen from behind, the keel 3 and that on the mast arm 4 articulated sail 5 can be seen with the canvas 6.
- the Mast arm 4 is pivotable about a multi-joint 8, which is connected to the ship deck 9.
- the mast arm 4 is otherwise only hinted at.
- the sail 5 can also be moved in the ship's longitudinal axis 10 will.
- Weight of the hull 2 is usually not by the here either The hydrostatic buoyancy shown in the water is fully compensated. Thereby but that the inclined sail 5 develops a sail lifting force 13, the hull becomes 2 slightly raised, which means that part of the total weight is now gravitational Opposing force or weight force 18 counteracts the lifting force 13. That part of weight 18 forms a parallelogram of forces together with the hydrodynamic transverse force 17 with the total force 19.
- the total force 14 and the total force 19 lie oppositely directed on a line. This means there is no lever arm with which no torque can occur.
- the lateral forces 12 and 17 are, however - since they develop in a dynamic process - not always the same size. At In addition to linear accelerations, imbalances also occur in rotational accelerations on, which is why the possibility mentioned must exist, the line of total force of the sail 5 below the lateral pressure point 16 or even below the lateral plan let go through.
- Fig. 2 shows a perspective view of a cross section through the frame 26 and a longitudinal section through the main tree 23 with the inner, longitudinal to the main tree 23 displaceable and rotatable in the main boom 23 pivot shaft 24, the transmission 25 for actuation on the frame 26 shifted shaft 27 via the ends 28 of the Rah 26 can set the reefing shafts 29 in rotation.
- the reef waves 29 wind-up canvas 6 are not shown. You can still see this figure one of the two outer trees 30, with the help of which the sail 5 has a rectangular shape can be awarded and the uniaxial joint 22 with which the angle of attack of Sail 5 can be adjusted to the wind.
- the possibility of moving the swivel shaft 24 in the main tree 23 in its longitudinal direction aims to shift the sail pressure point or the lateral pressure point 16 at different angles of attack to compensate for the sail 5.
- the joint 22 is on the head 21 of the mast arm 4 arranged.
- the already mentioned keel 3 consists of three parts according to FIGS. 3, 4, 5 and 6 and is referred to as the keel fin 33.
- this keel fin 33 is shown in FIGS Ship's hull 2 can be pushed in or pushed out of it, with here on a graphic representation is dispensed with.
- the individual parts 34, 37, 38 are over Hinges 35 and 39 are hinged together so that the arch of the keel fin 33 can be changed accordingly by the individual parts 34, 37, 38 are intertwined.
- the middle part 37 generally runs in the longitudinal axis of the ship 10, but according to FIG. 6 also pivoting about the pivot axis 40 is possible, so that the angle of attack of this keel fin 33 the circumstances can be changed accordingly.
- Fig. 7 shows the raising of the sail 5 by a certain amount and that Swiveling the sail 5 with the swivel angle. It becomes clear that an adjustment or adaptation of the sail 5 in this way and through the special training and the mast arm 4 which is designed to be displaceable in length is easily possible.
- Fig. 8 illustrates wind sailing in light wind, i. H. with light wind.
- the cantilever arm 4 is positioned somewhat upstream of the midship level.
- the Rah 26 is swiveled vertically, either to 0 ° or to 180 °, depending on the wind direction.
- the Adjustment to the wind takes place with the optimal angle.
- the curvature of the sail 5 is enlarged according to the weak wind. Become windward and leeward by slightly tilting the mast arm 4 forward and backward resulting shift of the sail pressure point (in front or behind the perpendicular controlled by the lateral pressure point 16). This shift in the sail pressure point could then also be used to change the course of the sailing ship 1.
- the mast arm 4 can also be tilted far forward 9, which illustrates.
- the Rah 26 is again perpendicular to the apparent Wind turned.
- the angle of attack can now be chosen much larger than that of the Sailing on the wind, since the resistance of the sail 5 is now also in the direction of travel of the sailing ship 1 points.
- the angle at which the greatest propulsive force is generated is to determine by experiment.
- the cantilever arm With strong wind and sailing on the wind, the cantilever arm is extended sideways, whereby the hull is turned from the midships plane.
- the Rah 26 will again set at right angles to the apparent wind, but pivoted so far that the line of force of the total force 14 generated by the sail 5 slightly below the contour line the lateral pressure point 16 in the lateral plan, but also as far to the bow of the lateral pressure point 16 shows that the now stronger luffing moment of propulsive force is compensated again.
- the curvature of the sail 5 becomes - according to the wind strength - chosen flatter.
- the sailing ship 1 gets into a severe storm or hurricane on the high seas, so that in a conventional sailing yacht there is a risk of capsizing under the naked Rig would exist, the sail 5 and the mast arm 4 can be fully retracted and on the Ship deck 9 are put down and fixed. As a result, the danger of capsizing is very high much lower. However, the ship capsizes e.g. B. by the action of waves, so can not tear off the deposited and fixed sail 5 and mast arm 4. In one Exceptional situation, the sailing ship 1 can withstand almost any heavy lake.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Wind Motors (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Toys (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Description
- Fig. 1
- ein gemäß erfindungsgemäßen Verfahren betriebenes Segelboot,
- Fig. 2
- einen Querschnitt durch die Rah in perspektivischer Ansicht,
- Fig. 3
- eine dreiteilige Kielflosse,
- Fig. 4
- eine andere Wölbung der Kielflosse,
- Fig. 5
- eine noch weiter veränderte Profilform und
- Fig. 6
- eine geänderte Profilform bei einem gleichzeitig veränderten Anstellwinkel,
- Fig. 7
- ein ausgestelltes und mit dem Schwenkwinkel geschwenktes Segel,
- Fig. 8
- ein Schiff mit auf Schwachwind gestelltem Segel,
- Fig. 9
- ein Schiff mit auf Drachensegel gestelltem Segel,
- Fig. 10
- ein im Orkan befindliches Segelschiff,
- Fig. 11
- ein Segelschiff beim Durchfahren von Brückendurchfahrten und
- Fig. 12
- ein im überdachten Liegeplatz abgestelltes Segelschiff.
Claims (15)
- Verfahren zum abdriftarmen oder gar abdriftfreien Betreiben eines Segelschiffes (1) mit Kielflosse (33) mit einem außerhalb der Mittschiffsebene gehaltenen und an den Wind entsprechend anstellbaren Segel (5), bei dem die gesamte Takelage einschließlich des horizontal und vertikal schwenkbaren Mastarmes (4) und des Segels (5) in eine eine optimale Gesamtkraft (14) erbringende Lage gebracht und gehalten wird,
dadurch gekennzeichnet,
daß die vom Segel (5) erbrachte Gesamtkraft (14) ermittelt und daß dann die Kielflosse (33), die über einen Drehturm und einen Mastarm (4) mit dem Segel (5) verbunden ist, bezüglich Wirkfläche und/oder Wölbung und/oder Profilform und/oder Anstellwinkel so der Stellung des Segels (5) angepaßt wird, daß die dabei von der Kielflosse (33) erzeugte Gesamtkraft (17) der Projektion der Gesamtkraft (12) des Segels (5) auf die horizontale Ebene genau entgegengesetzt gerichtet ist und gleichzeitig das Verhältnis von Auftrieb zu Widerstand der Kielflosse (33) maximiert wird, während der Schiffsrumpf (2) exakt in Fahrtrichtung bleibt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Anströmkante des Segels (5) immer rechtwinklig zum scheinbaren Wind und das Segel (5) darüber hinaus so gestellt wird, daß die Kraftlinie der Gesamtkraft (14) des Segels (5) den Lateralplan unterhalb des Lateraldruckpunktes (16) schneidet und/oder vorlich oder achterlich oder seitlich des Lateralplanes verläuft. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß der Kiel (3) mit den vom Segel (5) ausgehenden Kräften und mit der Relativgeschwindigkeit der Wasserströmung korrespondierend automatisch nach Größe der aktiven Fläche und/oder dem Anstellwinkel und/oder dem Profil eingestellt wird. - Segelschiff mit einem Schiffsrumpf (2) mit absenkbarem Kiel (3) und einem klappbaren, schwenkbaren Mastarm (4) und dem daran angebrachten Segel (5),
dadurch gekennzeichnet,
daß der Kiel (3) als mehrteilige, ballastfreie Kielflosse (33) ausgebildet ist, die in ihrer Gesamtheit in den Schiffsrumpf (2) einziehbar und relativ zur Schiffslängsachse (10) schwenkbar ist und deren Teile (34, 37, 38) über Scharniere (35, 39) eine veränderbare Wölbung ergebend verbunden sind. - Segelschiff nach Anspruch 4,
dadurch gekennzeichnet,
daß die Kielflosse (33) bzw. ihre Teile (34, 37, 38) auch in der Profilform veränderbar ausgebildet sind. - Segelschiff nach Anspruch 4,
dadurch gekennzeichnet,
daß die Kielflosse (33) um bis zu 90 ° nach jeder Seite schwenkbar mit dem Schiffsrumpf (2) bzw. mit dem Drehturm verbunden ist. - Segelschiff nach Anspruch 4,
dadurch gekennzeichnet,
daß der Lateralplan zwei Kielflossen (33) aufweist, die unabhängig voneinander absenkbar und einziehbar, schwenkbar, nach Profil und Wölbung veränderbar in Schiffslängsachse (10) hintereinander angeordnet sind, wobei eine der beiden Kielflossen (33) in der Mitte des Schiffes, wahlweise aber auch weiter in Richtung auf den Bug des Schiffes zu positioniert sein kann. - Segelschiff nach Anspruch 4,
dadurch gekennzeichnet,
daß die Kielflosse (33) dreiteilig ausgebildet ist, wobei das Mittelteil (37) die Schwenkachse (40) aufweist und die Profilnase (34) und das hintere Flossenteil (38) über Scharniere (35, 39) mit dem Mittelteil (37) schwenkbar verbunden sind. - Segelschiff nach Anspruch 4,
dadurch gekennzeichnet,
daß der Mastarm (4) horizontal und vertikal schwenkbar und um seine Längsachse drehbar über ein Vielgelenk (8) mit dem Schiffsdeck (9) verbunden und außerdem längenveränderlich und in jeder Position fixierbar ausgebildet ist. - Segelschiff nach Anspruch 4 und Anspruch 9,
dadurch gekennzeichnet,
daß dem Kopf (21) des Mastarmes (4) eine einachsiges, fixierbares Gelenk (22) zugeordnet ist, an dem der Hauptbaum (23) mit innenliegender, um ihre Längsachse drehbarer und in Längsachse verschiebbarer Schwenkwelle (24) angelenkt ist und daß die Schwenkwelle (24) ein Kopfstück mit einem Getriebe (25) zur Betätigung der in der Rah (26) verlagerten, die Segeltücher (6) aufnehmenden Reffwellen (29) aufweist. - Segelschiff nach Anspruch 10,
dadurch gekennzeichnet,
daß an der Rah (26) über Scharniere blockierbare und mit Umlenkrollen ausgerüstete Außenbäume (30) angelenkt sind. - Segelschiff nach Anspruch 4 - Anspruch 11,
dadurch gekennzeichnet,
daß jedem Gelenk (8, 22, 27) ein Winkelsensor zugeordnet ist. - Segelschiff nach Anspruch 4 - Anspruch 12,
dadurch gekennzeichnet,
daß die als Profilnase ausgebildete Rah (26) mit zwei in der Rah (26) aufrollbaren Segeltüchern (6) eine "dicke" Tragfläche bildet, deren Wölbung und deren Verhältnis von Länge zur Tiefe (Breite) veränderbar ist. - Segelschiff nach Anspruch 4 - Anspruch 12,
dadurch gekennzeichnet,
daß eine Reffwelle (29) zwei Segeltücher (6) aufnimmt, die an der Hinterkante der Rah (26) durch ein rechtwinkelig zu den Segeltüchern (6) stehendes Blech mit abgerundeten Kanten gehalten sind. - Segelschiff nach Anspruch 4 - Anspruch 14,
dadurch gekennzeichnet,
daß die Segeltücher (6) einzeln auf- und abwickelbar sind.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19528796A DE19528796A1 (de) | 1995-08-04 | 1995-08-04 | Verfahren zum Betreiben eines Segelschiffes und Segelschiff |
| DE19528796 | 1995-08-04 | ||
| PCT/DE1996/001424 WO1997006051A1 (de) | 1995-08-04 | 1996-07-31 | Verfahren zum betreiben eines segelschiffes und segelschiff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0837817A1 EP0837817A1 (de) | 1998-04-29 |
| EP0837817B1 true EP0837817B1 (de) | 1998-12-02 |
Family
ID=7768767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96929174A Expired - Lifetime EP0837817B1 (de) | 1995-08-04 | 1996-07-31 | Verfahren zum betreiben eines segelschiffes und segelschiff |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5934214A (de) |
| EP (1) | EP0837817B1 (de) |
| AT (1) | ATE173991T1 (de) |
| AU (1) | AU695460B2 (de) |
| CA (1) | CA2229033A1 (de) |
| DE (2) | DE19528796A1 (de) |
| NZ (1) | NZ316453A (de) |
| PL (1) | PL324894A1 (de) |
| WO (1) | WO1997006051A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2769581A1 (fr) | 1997-10-15 | 1999-04-16 | Arnaud Yves Rene Soustre | Mat a geometrie variable |
| DE10157730A1 (de) * | 2001-11-24 | 2003-06-05 | Hoffmann Ursula | Mastsystem für Segelboote |
| US20040200396A1 (en) * | 2003-04-11 | 2004-10-14 | Page John Splawn | Drag lift sailboat |
| US20060254486A1 (en) * | 2005-05-12 | 2006-11-16 | Ashdown Glynn R | Winged hull for a watercraft |
| ITMO20070243A1 (it) * | 2007-07-20 | 2009-01-21 | F Engineering S R L Ag | "apparato per la propulsione di un'imbarcazione o simili" |
| US9944356B1 (en) | 2009-03-25 | 2018-04-17 | Alexander T. Wigley | Shape shifting foils |
| IT1393553B1 (it) * | 2009-04-07 | 2012-04-27 | Clamadue S R L | Natante a vela |
| EP2531396B1 (de) | 2010-02-02 | 2013-12-11 | Ingo Vögler | Wasserfahrzeug mit bugseitig angeordnetem profilkörper |
| NL2014696B1 (en) * | 2015-04-23 | 2017-01-18 | Safeway B V | Vessel and gangway construction. |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE293226C (de) * | ||||
| DE376152C (de) * | 1920-06-22 | 1923-05-24 | Emil Palmblad | Schwert fuer Segelschiffe |
| US3968765A (en) * | 1972-10-30 | 1976-07-13 | Menegus Robert L | Rotatable-mounting apparatus for sails |
| AU495347B2 (en) * | 1975-10-07 | 1978-04-13 | William David Bullen John | Improvements in and relating to retractable yacht keels |
| US4044703A (en) * | 1976-08-25 | 1977-08-30 | Joel Kurtz | Sailboat control apparatus |
| NL7801749A (en) * | 1978-02-16 | 1979-08-20 | Pieter Boelsma | Drift limiter for sailing vessel - has longitudinal keel-board transversely swivelable against resistance by sail and carrying pivotable mast |
| DE2923707A1 (de) * | 1979-06-12 | 1980-12-18 | Jochen Valett | Land- oder wasserfahrzeug mit nichtkraengender segeleinrichtung |
| DE3531994A1 (de) * | 1985-09-07 | 1987-03-19 | Hatlapa Rolf Ing Buero | Kielausbildung fuer segelboote |
| US4817550A (en) * | 1988-01-20 | 1989-04-04 | Gutsche Gunter E | Stabilizing system for vehicles and method for using same |
| US5152238A (en) * | 1991-08-27 | 1992-10-06 | Page Robert L | Split-hinged, winged, self-cradling shallow draft keel for sailing vessel |
-
1995
- 1995-08-04 DE DE19528796A patent/DE19528796A1/de not_active Withdrawn
-
1996
- 1996-07-31 US US09/000,458 patent/US5934214A/en not_active Expired - Fee Related
- 1996-07-31 PL PL96324894A patent/PL324894A1/xx unknown
- 1996-07-31 AU AU68692/96A patent/AU695460B2/en not_active Ceased
- 1996-07-31 AT AT96929174T patent/ATE173991T1/de active
- 1996-07-31 WO PCT/DE1996/001424 patent/WO1997006051A1/de not_active Ceased
- 1996-07-31 DE DE59600922T patent/DE59600922D1/de not_active Expired - Fee Related
- 1996-07-31 EP EP96929174A patent/EP0837817B1/de not_active Expired - Lifetime
- 1996-07-31 NZ NZ316453A patent/NZ316453A/en unknown
- 1996-07-31 CA CA002229033A patent/CA2229033A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| NZ316453A (en) | 1999-09-29 |
| EP0837817A1 (de) | 1998-04-29 |
| PL324894A1 (en) | 1998-06-22 |
| CA2229033A1 (en) | 1997-02-20 |
| DE19528796A1 (de) | 1997-02-06 |
| ATE173991T1 (de) | 1998-12-15 |
| AU6869296A (en) | 1997-03-05 |
| WO1997006051A1 (de) | 1997-02-20 |
| US5934214A (en) | 1999-08-10 |
| DE59600922D1 (de) | 1999-01-14 |
| AU695460B2 (en) | 1998-08-13 |
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