AU2003204735A1 - Improved Surfboard Fin - Google Patents
Improved Surfboard Fin Download PDFInfo
- Publication number
- AU2003204735A1 AU2003204735A1 AU2003204735A AU2003204735A AU2003204735A1 AU 2003204735 A1 AU2003204735 A1 AU 2003204735A1 AU 2003204735 A AU2003204735 A AU 2003204735A AU 2003204735 A AU2003204735 A AU 2003204735A AU 2003204735 A1 AU2003204735 A1 AU 2003204735A1
- Authority
- AU
- Australia
- Prior art keywords
- fin
- vent
- surfboard fin
- surfboard
- improved surfboard
- 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
Landscapes
- Carpets (AREA)
Description
Description This invention concerns the design of a surfboard fin. It has been found that a vent passing laterally through a surfboard fin alters the hydrodynamic affect that the fin has on surfboard manoeuvrability. The purpose of the vent is to allow water to pass through the fin when the surfboard is turning through the water. By allowing water to pass through the fin, the vent reduces the resistance felt by the fin during a turn.
The affect of this design feature is most noticeable when the fin is being forced sideways through the water, since less resistance is felt than is normally the case. However, the vent does not seem to reduce the stabilising function of the fin when its passage through the water is at an angle approaching its own alignment.
A surfboard fin in accordance with this invention comprises a flat, foiled fin with a series of four vents passing laterally through the fin. Each vent is elongated and aligned parallel to the baseline of the fin, one on top of the other. The vents vary in their respective sizes in proportion to the tapering side profile of the fin.
Figure 1 shows the surfboard fin side on. The fin has a series of vents and passing laterally through it. Each vent is elongated and aligned parallel to the base of the fin
Claims (3)
1. A surfboard fin with a vent passing laterally through it.
2. A surfboard fin as claimed in claim 1, wherein said vent is elongated.
3. A surfboard fin as claimed in claims 1 and 2 wherein the elongate axis of said vent is parallel to the base of said fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003204735A AU2003204735A1 (en) | 2003-06-17 | 2003-06-17 | Improved Surfboard Fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003204735A AU2003204735A1 (en) | 2003-06-17 | 2003-06-17 | Improved Surfboard Fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2003204735A1 true AU2003204735A1 (en) | 2005-01-13 |
Family
ID=34382591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2003204735A Abandoned AU2003204735A1 (en) | 2003-06-17 | 2003-06-17 | Improved Surfboard Fin |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2003204735A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2524708A (en) * | 2013-11-26 | 2015-10-07 | Luis Alonso-Davis | An arrangement of fins |
| WO2017027921A1 (en) * | 2015-08-18 | 2017-02-23 | Jbooks Holdings Pty Ltd | A fin for a surfboard |
-
2003
- 2003-06-17 AU AU2003204735A patent/AU2003204735A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2524708A (en) * | 2013-11-26 | 2015-10-07 | Luis Alonso-Davis | An arrangement of fins |
| WO2017027921A1 (en) * | 2015-08-18 | 2017-02-23 | Jbooks Holdings Pty Ltd | A fin for a surfboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1 | Application lapsed section 142(2)(a) - no request for examination in relevant period |