WO2011012895A1 - Embarcation dotee de flotteur - Google Patents

Embarcation dotee de flotteur Download PDF

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Publication number
WO2011012895A1
WO2011012895A1 PCT/GB2010/051240 GB2010051240W WO2011012895A1 WO 2011012895 A1 WO2011012895 A1 WO 2011012895A1 GB 2010051240 W GB2010051240 W GB 2010051240W WO 2011012895 A1 WO2011012895 A1 WO 2011012895A1
Authority
WO
WIPO (PCT)
Prior art keywords
sponson
watercraft
deployed position
move
retracted
Prior art date
Application number
PCT/GB2010/051240
Other languages
English (en)
Inventor
William Aldiss
Original Assignee
William Aldiss
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by William Aldiss filed Critical William Aldiss
Publication of WO2011012895A1 publication Critical patent/WO2011012895A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B27/143—Ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/08—Ports or like openings in vessels' sides or at the vessels' bow or stern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
    • B63B43/14—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using outboard floating members

Definitions

  • This invention relates to a watercraft.
  • renewable energy such as that derived from the wind.
  • Power generation from the wind utilizes a wind turbine, commonly part of a larger wind farm, which is a large and unsightly structure.
  • Such wind farms are known as offshore wind farms.
  • Watercraft can comprise either a single hull (monohull) or multiple hulls (multihull). There are advantages and disadvantages associated with both monohull and multihull designs. An example of a monohull watercraft is shown in Figs 1 a to 1 d.
  • Monohull watercraft create less drag than multihull watercraft. Therefore, less effective horsepower (i.e. the power necessary to overcome the resistive forces) is needed for monohull designs so less fuel is required to power a monohull watercraft (compared to a multihull watercraft).
  • monohull watercraft are relatively unstable at rest, and vulnerable to rolling, compared to multihull watercraft. In this context, rolling refers to rotational movement about the longitudinal axis of the watercraft. Accordingly, multihull watercraft create more drag than monohull watercraft and are therefore less fuel efficient than monohull watercraft, but are relatively more stable and less vulnerable to rolling than monohull watercraft. It is therefore an aim of the present invention to provide a watercraft which is fuel efficient and yet suitable for the transfer of crew, for example at a wind turbine.
  • a watercraft comprising at least one sponson, movable between a retracted position and a fully deployed position, wherein the sponson is above a waterline of the watercraft when in the retracted position, and means to move the sponson between the retracted position and the fully deployed position.
  • the watercraft therefore has either a deployed or retracted sponson.
  • the watercraft can deploy the sponson.
  • the sponson increases the stability of the watercraft. This is advantageous when transferring a person from the watercraft to the wind turbine, as the person will have a more stable platform to move from. This transfer is therefore safer.
  • the sponson can be deployed and a stretcher can be slid down the sponson. Then the person can slide onto the stretcher, and the stretcher can be retrieved from the surrounding water.
  • the sponson is attached to the deck of the watercraft.
  • the sponson is attached to the topside of the watercraft.
  • the sponson is rotatably attached to the watercraft.
  • the sponson retracts into a recess in a hull, or into a deckhouse of the watercraft. This may be a recess in the hull or a hole in the hull above the waterline.
  • the member connecting to the sponson is part of the watercraft, and the watercraft can deploy and retract the sponson by rotating the member between deployed and retracted positions.
  • the sponson In the retracted position, the sponson is not in contact with the water and therefore the drag of the watercraft is decreased.
  • the member by retracting the member such that it is substantially perpendicular to the deck, the member can act as a barrier at the periphery of the deck, preventing crew from falling out of the watercraft and water splashing onto the deck.
  • the sponson In the deployed position, the sponson is deployed to the water, which increases the stability of the watercraft. In this position, the sponson dampens the motion of the watercraft due to the motion of the water.
  • the watercraft has a further stabilizing effect due to water coming onto the top of the deployed member and sponson, thereby forcing the sponson into the water and increasing the damping effect of the sponson.
  • the sponson is also moveable to a deployed position, the deployed position being any position between the retracted position and the fully deployed position, wherein the means to move the sponson can maintain the sponson in the deployed position.
  • the watercraft comprises a sponson on each side of the watercraft.
  • each sponson is moveable independently.
  • the first deployed position can be a different position to the second deployed position. Therefore, the first and second sponsons can be deployed to different positions, which may be preferable in turbulent conditions, or when the watercraft is unevenly loaded.
  • the watercraft further comprises a controller, wherein the controller controls the means to move the sponson.
  • the controller further comprises a roll sensor, and the controller controls movement of the sponson based on the roll of the watercraft.
  • controller further comprises a pitch sensor, and the controller controls movement of the sponson based on the pitch of the watercraft.
  • the controller can automatically control the deployment and retraction of the sponsons. This saves time and manpower to operate the watercraft.
  • the controller can compute the optimum position to deploy the first and second sponsons in order to achieve maximum stability.
  • the sponson is preferably highly buoyant.
  • the sponson may be formed as a hollow member containing air or some other buoyant material, such as closed cell foam.
  • the sponson may have a combination of materials such as an outer layer of closed cell foam around a hollow inner section.
  • the watercraft is a monohull watercraft.
  • the monohull watercraft will create less drag than a multihull watercraft.
  • the less drag the watercraft creates the less effective horsepower is required to power the watercraft. Therefore the monohull watercraft will have improved fuel efficiency with respect to multihull watercraft.
  • a sponson for use on a watercraft, comprising, a member arranged to attach the sponson to the watercraft, and a means to move the sponson, adapted to move the sponson between a retracted position, wherein the sponson is above the waterline of the watercraft, and a fully deployed position.
  • the sponson is adapted to be attached to a deck of the watercraft.
  • the sponson is adapted to be attached to a topside of the watercraft.
  • the member is adapted to be rotationally attached to the watercraft.
  • the sponson is adapted to retract into a recess in a hull or into a deckhouse of the watercraft.
  • This may be a recess in the hull or a hole in the hull above the waterline.
  • the means to move the sponson is also adapted to move the sponson to a deployed position, the deployed position being any position between the retracted position and the fully deployed position, wherein the means to move the sponson can maintain the sponson in the deployed position.
  • the sponson is preferably highly buoyant.
  • the sponson may be formed as a hollow member containing air or some other buoyant material, such as closed cell foam.
  • the sponson may have a combination of materials such as an outer layer of closed cell foam around a hollow inner section.
  • a method of connecting a sponson to a watercraft comprising an attachment member arranged to attach the sponson to the watercraft, and a means to move the sponson between a retracted position, wherein the sponson is above a waterline of the watercraft, and a fully deployed position, the method comprising the step of, attaching the sponson to the watercraft by the attachment member.
  • the sponson is attached to a deck of the watercraft.
  • the sponson is attached to a topside of the watercraft.
  • the sponson is rotationally attached to the watercraft.
  • the sponson is retracted into a recess in a hull or into a deckhouse of the watercraft. This may be a recess in the hull or a hole in the hull above the waterline.
  • the means to move the sponson can also move the sponson to a deployed position, the deployed position being any position between the retracted position and the fully deployed position, wherein the means to move the sponson can maintain the sponson in the deployed position.
  • a method of deploying a sponson from a watercraft comprising a member arranged to attach the sponson to the watercraft, and a means to move the sponson between a retracted position, wherein the sponson is above a waterline of the watercraft, and a fully deployed position
  • the method comprising the step of, moving the sponson from the retracted position to the fully deployed position by the means to move the sponson.
  • the sponson is attached to a periphery of a deck of the watercraft.
  • the sponson is attached to a topside of the watercraft.
  • the sponson is rotationally attached to the watercraft.
  • the sponson is retracted into a recess in a hull or into a deckhouse of the watercraft.
  • This may be a recess in the hull or a hole in the hull above the waterline.
  • the means to move the sponson can also move the sponson to a deployed position, the deployed position being any position between the retracted position and the fully deployed position, wherein the means to move the sponson can maintain the sponson in the deployed position.
  • Figure 1 a illustrates a side view of a monohull watercraft of the prior art
  • Figure 1 b illustrates a top view of a monohull watercraft of the prior art
  • Figure 1c illustrates a front view of a monohull watercraft of the prior art
  • Figure 1d illustrates an isometric view of a monohull watercraft of the prior art
  • Figure 2 illustrates a side view of a watercraft with retracted sponsons of the first embodiment of the present invention
  • Figure 3 illustrates a top view of a watercraft with retracted sponsons of the first embodiment of the present invention
  • Figure 4 illustrates a front view of a watercraft with retracted sponsons of the first embodiment of the present invention
  • Figure 5 illustrates an isometric view of a watercraft with retracted sponsons of the first embodiment of the present invention
  • Figure 6 illustrates a side view of a watercraft with deployed sponsons of the first embodiment of the present invention
  • Figure 7 illustrates a top view of a watercraft with deployed sponsons of the first embodiment of the present invention
  • Figure 8 illustrates a front view of a watercraft with deployed sponsons of the first embodiment of the present invention
  • Figure 9 illustrates an isometric view of a watercraft with deployed sponsons of the first embodiment of the present invention
  • Figure 10 illustrates a side view of a watercraft with retracted sponsons of the second embodiment of the present invention
  • Figure 1 1 illustrates a top view of a watercraft with retracted sponsons of the second embodiment of the present invention
  • Figure 12 illustrates a front view of a watercraft with retracted sponsons of the second embodiment of the present invention
  • Figure 13 illustrates an isometric view of a watercraft with retracted sponsons of the second embodiment of the present invention
  • Figure 14 illustrates a side view of a watercraft with deployed sponsons of the second embodiment of the present invention
  • Figure 15 illustrates a top view of a watercraft with deployed sponsons of the second embodiment of the present invention
  • Figure 16 illustrates a front view of a watercraft with deployed sponsons of the second embodiment of the present invention
  • Figure 17 illustrates an isometric view of a watercraft with deployed sponsons of the second embodiment of the present invention
  • Figure 18 illustrates a top view of a watercraft with deployed sponsons of the first embodiment of the present invention, showing the wheelhouse;
  • Figure 19 illustrates a front view of a watercraft with deployed sponsons of the first embodiment of the present invention, showing the wheelhouse;
  • Figure 20 illustrates a front cross-sectional view of a watercraft with retracted sponsons of the third embodiment of the present invention
  • Figure 21 illustrates a front cross-sectional view of a watercraft with deployed sponsons of the third embodiment of the present invention
  • Figure 22 illustrates a front cross-sectional view of a watercraft with retracted sponsons of the fourth embodiment of the present invention.
  • Figure 23 illustrates a front cross-sectional view of a watercraft with deployed sponsons of the fourth embodiment of the present invention.
  • FIGS 1 a-d illustrate the prior art of a monohull watercraft 1.
  • the watercraft 1 comprises a hull 3, and a deck 5 covering the hull 3.
  • a watercraft 2 is provided in a monohull design.
  • the watercraft 2 comprises a hull 3, including a deck 5 covering the hull 3.
  • References to waterline herein refer to an imaginary line where the surface of the water meets the watercraft 2 when it is stationary in a body of water. The actual water level will change, in use, due to loading of the watercraft 2, movement of the watercraft 2, and movement of the water (e.g. waves).
  • the part of the hull 3 between the waterline 15a, 15b and the deck 5 is the topside of the watercraft 2.
  • the waterline 15a, 15b will vary around the watercraft 2.
  • the waterlines 15a, 15b can be at the same level around the hull 3 of the watercraft 2, for example, if the watercraft 2 is in calm waters.
  • the deck 5 comprises a first member 7 at the periphery of the deck 5, extending away from the hull 3.
  • the first member 7 provides a barrier for the persons on the deck 5 from falling out of the watercraft 2, and prevents water splashing onto the deck 5.
  • the watercraft 2 comprises a second member 8 on the opposite side of the watercraft 2 to the first member 7.
  • a part 9 of the first member 7 connects to a first sponson 11
  • a part 10 of the second member 8 connects to a second sponson 12.
  • the sponsons 11 , 12 comprise elongate closed cell members having semi-circular cross sections.
  • the sponsons 1 1 , 12 are moveable between retracted positions and fully deployed positions.
  • Figures 2-5 show the watercraft 2 with the part 9 of the first member 7 in its retracted position and the part 10 of the second member 8 in its retracted position, that is, such that the sponsons 11 , 12 are above a first waterline 15a and a second waterline 15b of the watercraft 2 respectively.
  • the part 9 of the first member 7, and the part 10 of the second member 8, are rotatably attached to the deck 5 at the periphery of the deck 5, such that the part 9 of the first member 7, and the part 10 of the second member 8, can rotate about the periphery of the deck 5.
  • the watercraft 2 further comprises means to move the sponsons 1 1 , 12 between its retracted positions and fully deployed positions, preferably by rotating the part 9 of the first member 7 and the part 10 of the second member 8 about the periphery of the deck 5.
  • Figures 6-9 show the first embodiment of the watercraft 2, with the first and second sponsons 1 1 , 12 in their fully deployed positions.
  • the part 9 of the first member 7 rotatably moves from its retracted to its fully deployed position about the rotation point at the periphery of the deck 5.
  • the fully deployed position is any position such that the first sponson 11 is at or below the first waterline 15a of the watercraft 2.
  • the first sponson 11 is rotated from its retracted position to its fully deployed position by the means to move the first sponson 1 1 , such as hydraulic rams.
  • the part 10 of the second member 8 rotatably moves from its retracted position to its fully deployed position about the rotation point at the periphery of the deck 5.
  • the fully deployed position is any position such that the sponson 12 is at or below the second waterline 15b of the watercraft 2.
  • the sponson 12 is rotated from its retracted position to its fully deployed position by the suitable means, such as hydraulic rams.
  • the means to move the first and second sponsons could also be chains or articulated arms.
  • the means to move the first sponson 1 1 can also move the first sponson 1 1 to a deployed position, the deployed position being any position between the retracted position and the fully deployed position.
  • the means for moving the first sponson 11 can maintain the first sponson 1 1 at its deployed position.
  • the means to move the second sponson 12 can also move the second sponson 12 to a deployed position, the deployed position being any position between the retracted position and the fully deployed position.
  • the means for moving the second sponson 12 can maintain the second sponson 12 at the deployed position.
  • the means to move the first and second sponsons 1 1 , 12 could be controlled either by manual control, such as manual operation of the hydraulic rams, or an automatic controller.
  • the automatic controller could further comprise roll and/or pitch sensors.
  • the means to move the sponsons 1 1 ,12 reacts to a detected roll or pitch of the watercraft 2 to actuate the sponsons 1 1 ,12.
  • the controller can calculate the optimal position for the first and second deployed positions as a function of the roll and/or the pitch of the watercraft 2.
  • the optimal position would be such that the stability of the watercraft 2 is maximised.
  • the first and second sponsons when in their retracted positions, form part of a fender 25 of the watercraft 2, however, this is not essential to the invention.
  • Figures 10-13 show a second embodiment of the present invention.
  • the watercraft 20 comprises a hull 3, a deck 5, a first member 7 and a second member 8, a part 9 of the first member 7 and a part 10 of the second member 8.
  • the parts 9, 10 of the first member 7 and second member 8 connect to the first sponson 11 and the second sponson 12 respectively, wherein the sponsons 1 1 , 12 do not form part of the fender 25.
  • the parts 9,10 of the first member 7 and second member 8 can be a different distance from the deck 5 of the watercraft 20 to the remainder of the first member 7 and second member 8, therefore, the sponsons 1 1 ,12 can be at a greater distance from the watercraft 20. Therefore, the sponsons 1 1 ,12 can be deployed a greater distance from the watercraft 20, which increases stability.
  • Figures 14-17 show the second embodiment of the present invention, showing the first and second sponsons 1 1 ,12 in their fully deployed positions respectively.
  • a simpler version could comprise a single sponson, deployable to the side or rear of the watercraft.
  • a more complex version could include three or more sponsons deployable variably around the watercraft, for increased stability.
  • first and second members 7,8 are positioned at the periphery of the deck 5, extending away from the hull 3.
  • the first and second members 7,8 could extend out of the topside of the watercraft 2, away from the hull 3.
  • Either of the embodiments discussed above could further comprise a wheelhouse 13, for example located between the two sponsons. This feature is shown, in respect of the first embodiment, in Figures 18-19.
  • the wheelhouse 13 reduces the likelihood of a person standing near the parts 9,10 of the first member 7 and second member 8. This reduces the likelihood of the person falling out of the watercraft 2 when the parts 9,10 of the first member 7 and second member 8 are deployed.
  • either of the embodiments discussed above could include a temporary member (not shown).
  • a temporary member (not shown).
  • FIG. 20-21 A third embodiment of the present invention is shown in Figures 20-21.
  • the watercraft 30 comprises a hull 3, and waterlines 15a, 15b.
  • the first and second sponsons 11 ,12 retract into a recess in the hull 3.
  • the sponsons 1 1 , 12 move from the retracted position to the fully deployed position, where the sponsons 1 1 , 12 are at least partially submerged.
  • the movement can be achieved through extendable members, articulated arms or other suitable means.
  • a fourth embodiment is show in Figures 22-23.
  • a watercraft comprises a hull 3 and waterlines 15a, 15b.
  • the watercraft 30 further comprises a deckhouse 31 , such as a wheelhouse, and the sponsons 11 ,12 are retracted inside the deckhouse 31. Therefore, to deploy the sponsons 1 1 ,12, the sponsons 11 ,12 move from the retracted position to the fully deployed position, where the sponsons 1 1 ,12 are at least partially submerged.
  • the movement can be achieved through extendable members, articulated arms, or other suitable means.
  • the sponsons 1 1 ,12 are constructed out of elongate semi-circular closed cell foam members.
  • the sponsons 1 1 ,12 could be constructed out of any material such that they are highly buoyant.
  • the sponsons 11 ,12 may be formed as hollow members containing air or some other buoyant material.
  • the sponsons 1 1 ,12 may have a combination of an outer layer of closed cell foam around a hollow inner section.
  • the sponsons 11 ,12 could be circular, or any other shape.
  • the sponsons 11 ,12 may be formed of a plurality of modular sections. Therefore, if one modular section is damaged, then that section can be removed and replaced. This decreases the maintenance cost of the watercraft.
  • the fender 25 of the watercraft may also be formed of modular sections of fender.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne une embarcation (1) comprenant une coque (3), un pont (5) couvrant au moins une partie de la coque, un élément (7, 8) fixé à au moins une partie de la périphérie du pont ou au moins une partie de la surface de l'embarcation, qui s'étend à distance de la coque, l'élément se raccordant à ou formant un flotteur (9, 10), et un moyen de déployer et de rétracter le flotteur. De préférence, l'élément est fixé rotatif à la périphérie du pont, de façon que le moyen de déployer et de rétracter le flotteur consiste à faire tourner l'élément entre les positions déployée et rétractée.
PCT/GB2010/051240 2009-07-29 2010-07-28 Embarcation dotee de flotteur WO2011012895A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0913192.1 2009-07-29
GB0913192A GB2472232A (en) 2009-07-29 2009-07-29 Watercraft with a retractable sponson

Publications (1)

Publication Number Publication Date
WO2011012895A1 true WO2011012895A1 (fr) 2011-02-03

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ID=41067016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/051240 WO2011012895A1 (fr) 2009-07-29 2010-07-28 Embarcation dotee de flotteur

Country Status (2)

Country Link
GB (1) GB2472232A (fr)
WO (1) WO2011012895A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11518478B2 (en) 2020-02-12 2022-12-06 Mastercraft Boat Company, Llc Boat having a removable seat positioned over a walkway accessing an expandable deck

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Publication number Priority date Publication date Assignee Title
FR3011220B1 (fr) * 2013-10-02 2018-01-26 Amc Holding Stabilisateur pour bateau de plaisance au mouillage
IT202200000623A1 (it) * 2022-01-17 2023-07-17 Gianluca Battiloro Sistema stabilizzatore anti-rollio per imbarcazioni
GB2622793A (en) 2022-09-27 2024-04-03 Juno Ltd A remote site and offshore welfare unit having integral frame and load-bearing securing and lifting means

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GB1557539A (en) * 1977-09-15 1979-12-12 Brubaker C M Vehicles
US4320713A (en) * 1979-05-16 1982-03-23 Kawasaki Jukogyo Kabushiki Kaisha Small watercraft
FR2598670A1 (fr) * 1986-05-16 1987-11-20 Ducrocq Louis Dispositif pour catamaran rapide a largeur variable
WO1991006467A1 (fr) * 1989-10-27 1991-05-16 Robert David Humphreys Voilier
JPH0811780A (ja) * 1994-06-29 1996-01-16 Hitachi Zosen Corp 減揺翼装置
FR2760716A1 (fr) * 1997-03-13 1998-09-18 Francis Dauphin Dispositif pour placer les flotteurs d'un trimaran pliable sur et dans la largeur de sa coque centrale
US5937777A (en) * 1995-12-16 1999-08-17 Mission Yachts Plc Monohull water-borne craft
US20080072811A1 (en) * 2006-09-25 2008-03-27 Robert Michael Patterson Boat stabilizer
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NZ504403A (en) * 2000-05-08 2002-07-26 Ross Anthony Fuller And Lorain Stabilising apparatus for water borne objects, with pod(s) able to be located in latched use position floating near water line, and retracted non-use position
JP2003127979A (ja) * 2001-10-24 2003-05-08 Yamaha Motor Co Ltd 水ジェット推進艇
US20070137541A1 (en) * 2003-09-29 2007-06-21 Linsley Edward L Twister wings sailboat
US6871611B1 (en) * 2004-01-20 2005-03-29 Peter James Tormey Kayak with adjustable cockpit walls
US20090090290A1 (en) * 2007-10-09 2009-04-09 Eric Mueller Kayak-stability system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1557539A (en) * 1977-09-15 1979-12-12 Brubaker C M Vehicles
US4320713A (en) * 1979-05-16 1982-03-23 Kawasaki Jukogyo Kabushiki Kaisha Small watercraft
FR2598670A1 (fr) * 1986-05-16 1987-11-20 Ducrocq Louis Dispositif pour catamaran rapide a largeur variable
WO1991006467A1 (fr) * 1989-10-27 1991-05-16 Robert David Humphreys Voilier
JPH0811780A (ja) * 1994-06-29 1996-01-16 Hitachi Zosen Corp 減揺翼装置
US5937777A (en) * 1995-12-16 1999-08-17 Mission Yachts Plc Monohull water-borne craft
FR2760716A1 (fr) * 1997-03-13 1998-09-18 Francis Dauphin Dispositif pour placer les flotteurs d'un trimaran pliable sur et dans la largeur de sa coque centrale
US20080072811A1 (en) * 2006-09-25 2008-03-27 Robert Michael Patterson Boat stabilizer
US7644674B1 (en) * 2007-12-12 2010-01-12 John Goldston Marine vessel stabilization system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11518478B2 (en) 2020-02-12 2022-12-06 Mastercraft Boat Company, Llc Boat having a removable seat positioned over a walkway accessing an expandable deck

Also Published As

Publication number Publication date
GB2472232A (en) 2011-02-02
GB0913192D0 (en) 2009-09-02

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