US20020094733A1 - Dolphin surfboard fin, sailboard fin - Google Patents
Dolphin surfboard fin, sailboard fin Download PDFInfo
- Publication number
- US20020094733A1 US20020094733A1 US09/814,477 US81447701A US2002094733A1 US 20020094733 A1 US20020094733 A1 US 20020094733A1 US 81447701 A US81447701 A US 81447701A US 2002094733 A1 US2002094733 A1 US 2002094733A1
- Authority
- US
- United States
- Prior art keywords
- fin
- surfboard
- dolphin
- lateral
- water
- 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.)
- Abandoned
Links
- 241001481833 Coryphaena hippurus Species 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000001133 acceleration Effects 0.000 abstract description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 241000283153 Cetacea Species 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/62—Board appendages, e.g. fins, hydrofoils or centre boards characterised by the material, e.g. laminated materials; characterised by their manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
Definitions
- the feature that characterises this fin is the lateral fin attached to the vertical section of the fin.
- the shape resembles that of a Dolphin or Porpoise. It is filed from the front edge thinning out to the rear edge much in line with the aerodynamics of a boomerang. This gives the fin the ability to turn the surfboard in the water but also give the board more response when it is air born, thus allowing more aero stunts.
- the lateral feature of the fin allows the rider to use lateral forward drive as a dolphin does in propelling himself through the water rather than relying on the common vertical fin currently in use.
- the fin is designed to be used in a thruster configuration as the tail fin, with the standard vertical fins used forward of the Dolphin Fin. It could also be used single fin as in sailboard or on a yacht.
- the fin is made of fibreglass, but could be made of material such as plastic.
- the lateral fin is held on to the vertical section by use of two screws inserted from the topside of the fin. It is also reinforced with resin and fibreglass.
- the vertical and lateral pieces are cut into shape before they are assembled. Also sanding the foils of the vertical and lateral parts occur before being put together.
- lateral-wing-fin acts aerodynamically through the air giving the board ability to act directionally with stability while also giving lift to the board when it is air born.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Wind Motors (AREA)
- Toys (AREA)
Abstract
The lateral wing sits on top of the vertical section of the fin. This enables the lateral wing to work separately in function and also together with the vertical section of the fin when the Dolphin fin is being moved through the water in different angles and directions. This revolving aspect allows for greater holding power on sections of the wave and acceleration and turning power.
Of course the fin on leaving the water acts aerodynamically guiding and giving lift to the surfboard going through the air, allowing the board to be manoeuvrable and directional in the air.
Description
- I was looking to improve the performance of surfboard design. Looking for more manoeuvring, acceleration and stability.
- The feature that characterises this fin is the lateral fin attached to the vertical section of the fin. As the name indicates the shape resembles that of a Dolphin or Porpoise. It is filed from the front edge thinning out to the rear edge much in line with the aerodynamics of a boomerang. This gives the fin the ability to turn the surfboard in the water but also give the board more response when it is air born, thus allowing more aero stunts. The lateral feature of the fin allows the rider to use lateral forward drive as a dolphin does in propelling himself through the water rather than relying on the common vertical fin currently in use.
- The fin is designed to be used in a thruster configuration as the tail fin, with the standard vertical fins used forward of the Dolphin Fin. It could also be used single fin as in sailboard or on a yacht.
- The fin is made of fibreglass, but could be made of material such as plastic. The lateral fin is held on to the vertical section by use of two screws inserted from the topside of the fin. It is also reinforced with resin and fibreglass. The vertical and lateral pieces are cut into shape before they are assembled. Also sanding the foils of the vertical and lateral parts occur before being put together.
- I feel this design sets it apart from other fin designs because of its reliance on lateral drive in the water which dominates its effect in riding conditions rather than the usual dorsal fin.
- It gives great acceleration and power in performance than standard fins. This creates an innovation in surfing performance.
- I claim that the lateral-wing-fin on top of the vertical fin acts together to drive the surfboard as a dolphin uses its rear lateral fin to drive itself through the water striking the front wing part of the fin, holds the board down in water during turns.
- I claim that the lateral-wing-fin acts aerodynamically through the air giving the board ability to act directionally with stability while also giving lift to the board when it is air born.
Claims (1)
1. I claim the lateral wing fin placed on top of the vertical fin acts separately to drive and accelerate the surfboard along the water as a dolphin:
That the lateral fin acts together with the vertical fin to give the surfboard better turning ability and holding ability in sections of the wave.
That the lateral wing acts aerodynamically to give lift and direction to the surfboard while it is air borne.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU13674/01 | 2001-01-12 | ||
| AU13674/01A AU1367401A (en) | 2000-03-20 | 2001-01-12 | The dolphin surfboard fin, sailboard fin yacht fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20020094733A1 true US20020094733A1 (en) | 2002-07-18 |
Family
ID=3703984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/814,477 Abandoned US20020094733A1 (en) | 2001-01-12 | 2001-03-07 | Dolphin surfboard fin, sailboard fin |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US20020094733A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070093154A1 (en) * | 2005-10-25 | 2007-04-26 | Simpson Douglas J | High-lift, low drag fin for surfboard and other watercraft. |
| US20100311294A1 (en) * | 2009-06-05 | 2010-12-09 | Foulke Robert W | Pivotal surfboard fin assembly |
| AU2015311617B2 (en) * | 2014-09-03 | 2017-11-02 | Blue Movement Pty Ltd | Watercraft fin, fin assembly or fin attachment |
| US10800495B1 (en) * | 2014-11-29 | 2020-10-13 | Paul Thomas | Enhanced planing devices and systems |
-
2001
- 2001-03-07 US US09/814,477 patent/US20020094733A1/en not_active Abandoned
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070093154A1 (en) * | 2005-10-25 | 2007-04-26 | Simpson Douglas J | High-lift, low drag fin for surfboard and other watercraft. |
| US7244157B2 (en) | 2005-10-25 | 2007-07-17 | Douglas James Simpson | High-lift, low drag fin for surfboard and other watercraft |
| US20100311294A1 (en) * | 2009-06-05 | 2010-12-09 | Foulke Robert W | Pivotal surfboard fin assembly |
| US8083560B2 (en) | 2009-06-05 | 2011-12-27 | Foulke Robert W | Pivotal surfboard fin assembly |
| US8414344B2 (en) | 2009-06-05 | 2013-04-09 | Robert W. Foulke | Pivotal surfboard fin assembly |
| AU2015311617B2 (en) * | 2014-09-03 | 2017-11-02 | Blue Movement Pty Ltd | Watercraft fin, fin assembly or fin attachment |
| US10800495B1 (en) * | 2014-11-29 | 2020-10-13 | Paul Thomas | Enhanced planing devices and systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |