[go: up one dir, main page]

WO2004024242A1 - Ameliorations apportees a des palmes et procede de fabrication - Google Patents

Ameliorations apportees a des palmes et procede de fabrication Download PDF

Info

Publication number
WO2004024242A1
WO2004024242A1 PCT/AU2003/001191 AU0301191W WO2004024242A1 WO 2004024242 A1 WO2004024242 A1 WO 2004024242A1 AU 0301191 W AU0301191 W AU 0301191W WO 2004024242 A1 WO2004024242 A1 WO 2004024242A1
Authority
WO
WIPO (PCT)
Prior art keywords
fin
layer
foot
layers
hardness
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.)
Ceased
Application number
PCT/AU2003/001191
Other languages
English (en)
Inventor
Shane Vassallo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pod Ware Pty Ltd
Original Assignee
Pod Ware Pty Ltd
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 Pod Ware Pty Ltd filed Critical Pod Ware Pty Ltd
Priority to AU2003258381A priority Critical patent/AU2003258381B2/en
Publication of WO2004024242A1 publication Critical patent/WO2004024242A1/fr
Priority to US11/077,911 priority patent/US7077715B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B31/00—Swimming aids
    • A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
    • A63B31/10—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet
    • A63B31/11—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet

Definitions

  • the present invention relates to improvements in swim fins and flippers and ore particularly relates to a swim fin and method of manufacture thereof which includes fin geometry resulting in a more mechanically efficient, economic, flexible, soft, light weight and comfortable fin in comparison to the known fins.
  • the improvements in such fins enable enhanced maneuverability for the swimmer to whose foot or feet the swim fin or fins are attached.
  • the present invention also provides an improved method of fin construction in which layer hardness distribution throughout the fin is more efficient in that there is increased user comfort, improved geometry and more efficient aqua dynamics.
  • F IOR ART such as surfers and body board users commonly attach swim fins to their feet to gain greater maneuverabiliiy. This is achieved by kicking which causes the fins to flex and push against the water with greater force than is possible using the feet alone.
  • fin design each having a particular aqua dynamic effect dictated by their flexibility, weight, shape and configuration. Fin flexibility is a function of the particular construction of the fin and the stiffness of the material used. The shape and contour of a swim fin is largely dictated by its function. Thus, long fins are used in such activities as scuba diving and short fins are used in such activities as surfing where less purchase in the water ( or water displacement) is required. The longer the fin, the greater the load on the foot of the wearer but greater the water displacement. The shorter the fin the lower the load on the foot of the wearer and lower the displacement. In fin design the objective is to provide a comfortable fin which reduces wearer effort without compromise to efficiency. Efficiency is related to wearer effort versus mechanical advantage. An efficient fin propels the wearer with maximum thrust but with a minimum of effort. The differences between fin designs can be subtle but a subtle change in design can result in a more or less efficient fin.
  • Another design criterion is foot comfort. This is predominately a function of material softness disposed in the right places so the foot interacts favorably with the rubber of the fin. Ideally, soft compound rubber will be located in areas of the fin which engage the foot and hard compound rubber will be in those areas which require sufficient stifihess to resist excessive flexure during water displacement. Thus, fin design is a compromise between adequate stiffness for propulsion and sufficient softness for wearer comfort.
  • a known fin is disclosed in United States Patent 6,354,894 which teaches a spear bladed swim fin which enables divers to propel themselves through the water.
  • Spear-bladed swim fins generally provide a lower surface area to a higher perimeter edge length. By reducing the effective surface area of the swim fin, more propulsive force is delivered by the fin for each kick of the diver. Such dispersion of di diver's energy may be particularly advantageous where stationary swimming is required. Additionally, vortices generated during swim kicks may advantageously complement the operation of the swim fin.
  • the spear blade has a large channel through which water can flow to eliminate dead spots on die lee side of the fin.
  • Fork extension stubs present with the foot pocket of the swim fin provide an adjustable means by which the flexing, bowing, and/or geometry of the swim fin blade may be adjusted according to the preferences and/or demands of the diver.
  • FIG. 1 Another known fin is disclosed in United States Patent 5,533,918 which teaches a swim fin unit for use on the foot of a swimmer, comprising a body defining a foot receptacle that opens endwise forwatdly; a first fin structure integral with and extending generally rearwardly of the body to be flexed upwardly and downwardly rearwardly of the body by water pressure; a d a second fin structure integral with and extending generally vertically rearwardly relative to the body; wherein the said first fin structure defines a first plane and the second fin structure defines a second plane; the first and second planes intersecting in generally perpendicular relation.
  • swim fins With the advancement of scuba diving and snorkeling, swim fins have likewise developed in order to propel the swimmer flirough the water more efficiently. As with the swimming fins of fish, swim fins for human beings have certain dynamic characteristics, depending upon fin architecture, that provide for different types of propulsion through the water.
  • swim fins particularly those often used m conjunction with body surfing and body board surfing, scuba and skin diving, are bladed fins having edges extending outwardly from a foot pocket. Webbing is present in the form of elastic or plastic webbing that forms a blade by which the diver propels him or herself. Such swim fins often resemble the rounded or truncate caudal fins present on fish. Consequently, such swim fins provide strength, but generally not speed. As a result, skin and scuba divers swimming around reefs and trying to cover longer distances in calm waters must generally work harder in order to propel themselves fester. Additionally, such bladed swim fins are not adjustable and the lateral edges and the blade webbing does generally not provide any adjustment with respect to the foot pocket.
  • Fins are typically manufactured from layers of different compound rubbers .
  • a soft compound is normally used for the foot housing to facilitate convenient and comfortable insertion of the foot therein and also to prevent abrasion from hard edges.
  • a hard compound is used for the free trailing end blade as this requires a minimum stiffness to displace water without unwanted excessive flexure or bending.
  • the present invention provides an improved fi which results in a more economic, flexible, soft, light weight and comfortable fin.
  • the present invention provides an improved method of construction of a fin in which layers of rubber are preset prior to compression moulding.
  • prescribed rubber layers which will form a bottom of a fin are set along with layers for a heel strap region.
  • a foot mould is introduced between those layers and upper layers which will form an upper surface of the fin including the foot pouch.
  • the present invention comprises a laminated swim fin formed using two or more rubberized layers each having different hardness; the fin comprising ; a) a foot body defining a foot receptacle, that includes an opening to receive the foot of a wearer; b) a first region integral with and extending generally rearwardly of the
  • body to be flexed upwardly and downwardly and rearwardly of the body, by action of water when the fin is in use; c) the fin including an outer layer of medium hardness rubberized material;
  • the present invention comprises: a swim fin for use on the foot of a swimmer, the fin comprisin ; a foot body defining a foot receptacle, ihat includes an opening to receive a foot of a wearer; a fin body integral with and extending from the body of the foot receptacle and which is capable of being flexed upwardly and downwardly during use and responsive to water pressure wherein, the foot receptacle comprises a soft compound rubber and the fin body includes a medium compound rubber; the fin body further comprising lateral hard rubber regions between the medium and soft compounds wherein the hard rubber regions and maxim rubber layer combine to form contoured splay rails which contribute to water displacement and propulsion of the user.
  • the splay rails are symmetrical about a longitudinal axis through the fin.
  • a swim fin including a leading end and a trailing end, the leading end including a recess for receiving a foot of a wearer and the trailing end being a free end which displaces water each sweeps through the water;
  • the fin including a laminated construction comprising a first layer of medium hardness rubberized material ; a second layer of hard rubberized material and a third layer of soft rubberized material; wherein the first and second layers envelope said third layer of soft material.
  • the present invention comprises; a method Of construction of a swim fin, the method comprising the steps of; a) providing a first layer of medium compound rubberized material; b)placing a pocket mould in apposition to the first layer to allo formation of a foot pocket in the fin; c)applying a layer soft compound rubber about said foot pocket; d)a ⁇ plying a hard compound rubber between said medium compound rubber and said soft compound rubber; e)forraing an envelope with said medium compound rubber to retain said foot pocket and said hard compound rubber; f) bonding said soft, medium and hard layers by heat fusion.
  • the bonding of layers may be by a combination of heat fusion and compression.
  • the present invention comprises: a method of construction of a swim fin using a compression mould, the method comprising the steps of; a) providing at least one layer of rubberized material having a first degree of hardness; b) providing at least one layer of rubberized material having a second degree of hardness and being a harder material that the first degree of hardness layer; c) taking a mould capable of forming a foot cavity in.
  • the method may comprise the fhrther preliminary step of milling the rubber layers to a predetermined thickness.
  • a preferred ( but non limiting ) layer thickness would be in the region of 10 - 15mm.
  • the layers can be milled to as low as 3mm thick by running Ihe layers through a rolling machine. Also, each layer may be of varying thicknesses
  • the fin formed by the process according to the invention has a stiff inner hard layer, a medium outer layer of reduced stiffness and a foot pocket of soft rubber.
  • the fin comprises a first medium layer of a first colour, a second layer of a soft rubber layer having a second colour and a hard layer of a third colour.
  • the colours of said layers provide an indication of the hardness or stiffness of the layers which comprise the fins.
  • the method comprises the farther step, before laying out said layer of medium compound rubber, of guillotining the layer to a shape according to the geometry of the fin required.
  • Figure 1 shows a plan view of a typical known fin constructed in accordance with prior art methodology
  • Figure 2 shows a cross sectional view of a fin constructed in accordance with the prior art.
  • Figure 3 shows a plan view of a fi i constructed in accordance with a preferred embodiment of the invention.
  • Figure 4 shows s side elevation view of the fin of figure 3 .
  • Figure 5 shows a cross section across a line A-A as shown in figure 3 according to one embodiment.
  • Figure 6 shows a cross section across a line A-A as shown in figure 3 according to an alternative embodiment
  • Figure 7 shows a cross section across a line B-B as shown in figure 3 according to one embodiment.
  • Figure 8 shows a schematic arrangement of an assembly for constructing a fin in accordance with the present invention.
  • fin 1 comprises a foot pocket 2 disposed in a central region of the fin.
  • Fin 1 also includes a retaining strap 3 which defines an opening 4 through which a users foot is inserted .
  • Retaining strap 3 engages a users heel to retain the foot in foot pocket 2.
  • Fin 1 further comprises a distal or trailing end 5 which forms the major area of the overall fin. Trailing or distal end 5 is splayed outwards such that it is widest at edge 6.
  • FIG. 2 shows a cross sectional view of fin 1 of figure 1 taken across a line A-A constructed in accordance with the prior art. As may be seen from figure
  • fin 1 comprises a first hard rubber compound layer 7 which is heat fused with a second softer rubberized material 8 which forms a moulded foot pocket 9 which receives and retains a foot of a wearer.
  • This prior art fin is manufactured by fusing the hard layer 7 with the soft layer 8. The result is a generally hard fin base and a soft upper wall 8 of foot pocket 9 which is flexible enough to enable a wearer to insert the foot and provide foot comfort during use.
  • the known fins include a leading ( proximal) end and a trailing end. Intermediate the leading ( proximal) end terminating in strap 3 is a foot pocket 2 for receiving and retaining a foot of a wearer, wherein the trailing end has a relatively stiff free end which displaces water each sweep of fin 1 through water.
  • FIG. 3 shows a plan view of a fin 10 constructed in accordance with a preferred embodiment of the invention.
  • fin 10 comprises a foot pocket 12 disposed in a central region of the fin.
  • Fin 10 also includes a retaining strap 13 which defines an opening 14 through which a users foot is inserted , Retaining strap 13 engages a users heel to retain the foot in foot pocket 12.
  • Fin 10 further comprises a distal or trailing end region 15 which forms the major area of the overall fin. Trailing or distal end 15 is splayed outwards such that it is widest across edge 16.
  • FIG. 4 shows a side elevation of the fin of figure 3 with corresponding numbering.
  • Figure 5 shows a cross section taken along a line A-A through fin 10 according to one embodiment and manufactured in accordance with the method aspect of the invention.
  • fin 10 comprises a first medium hardness layer 17 of rubberized material which is heat fused with a second inner layer 18 of softer rubberised material which forms a moulded foot pocket 19 which receives and retains a foot of a wearer.
  • Fin 10 further 5 comprises a hard compound rubber 20 which is retained between layers 17 and
  • the result is a generally medium hardness outer layer, a soft inner layer 18 for foot comfort and lateral hard regions which reinforce generally stiff but flexible splay rails 19 and 21.
  • the invention provides a swim fin including a leading end and a trailing end, the leading end including recess for receiving a foot of a wearer and the trailing end being a free end which displaces water each sweep through the water.
  • Fin 10 is a laminated construction in which soft layer 18 is in apposition with and enveloped by outer layer 17 and hard
  • the method of construction of fin 10 generally comprises the following steps
  • a first layer 17 of medium compound rubberized material is provided which is laid out on a platform after it is cut to the required configuration. Next a pocket mould (not shown ) is placed in apposition to first layer 17 to allow
  • Soft compound rubber layer 18 is disposed about the foot mould (not shown) to form the foot pocket 19.
  • Hard compound rubber layer 20 is disposed between soft compound rubber 18 and medium compound rubber layer 17 so that the hard compound rubber layer 20 has a boundary with the
  • the medium layer 17 may be wrapped over the inner soft layer 18 and hard layer 20.
  • Each of layers 17, 18 and 20 are preferably bonded by heat fusion and compression moulding techniques.
  • the fin 10 includes splay rails 21 and 22 formed on each side, the rails comprising respectively upper
  • the layers of the fin will typically be specified according to a flow index of the rubberized material layers.
  • the method comprises the further step, before laying out said layer of medium compound rubber, of guillotining the layers so they are cut to size before compression moulding. A process for construction of the fin will be described below with reference to figure 8.
  • the fin 10 formed by the process according to the embodiment described with reference to figure 5 above has a stiff hard layer, a medium outer layer of reduced stiffness and an inner foot pocket of soft rubber.
  • the fin comprises a first medium layer of a first colour, a second layer of a soft rubber layer having a second colour and a hard layer of a third colour.
  • the colours of said layers provide an indication of the hardness or stiffness of the layers which comprise the fins.
  • the fin may be constructed of laminated layers of the same color but it has been found convenient to employ layers of different colours to represent layers of different hardness and also to enhance the visual effect of the finish as layers of different colours undergo migration during compression moulding.
  • the foot recess 1 migrates from a wide region tapering to a narrower region at its opposite end wherein the splay rails 23 and 24 are disposed so as to increase the efficiency of travel of the fin through water and the mechanical advantage to the user.
  • the upper edge of the fin is that which is nearest the users ankle and the lower edge is that which is nearest the soles of the users feet.
  • the upper edge extends laterally beyond the lower edge so that contoured recesses 25 and 26 on opposite sides is formed when viewed in cross section.
  • Fin 10 further comprises and inner rails 27 and 28 .
  • the rails 21 and 22 and corresponding recesses 25 and 26 contribute to thrust provided by the fin and increase mechanical advantage.
  • the upper edge rails 21 and 22 are to some extent flexible as a medium compound rubber is used to form the edges.
  • the lower / inner edge rails 27 and 28 may flex to some extent laterally as the upper edge flexes substantially vertically.
  • the cup like recess 25 and 26 formed by the upper and lower edges cause side thrust in conjunction with lateral displacement of water as the fin is maneuvered in an up and down sweep through the water. Due to the unique edge geometry of the fin, the user notices less effort in obtaining thrust in comparison to the known fin configurations. This is in part due to favourable vortices created as the fin undergoes its vertical sweeps through the water and also due to the particular displacement path of the water as the fin sweeps through.
  • the side rails may undergo fine adjustments during manufacture to alter operating parameters such as its flexion, tension, pitch, geometry and/or a combination of each to alter slightly the water flow over the fin and ultimately aqua dynamics of the fin.
  • the rails are preferably U or V shaped and reduce drag on the downward thrust but with lateral stability.
  • Figure 6 shows a cross section taken along a line A-A through a fin according to an alternative embodiment and manufactured in accordance with a method aspect of the invention.
  • Fin 30 comprises a first inner soft layer 31 of rubberized material which is heat fused with a second layer outer layer 32 of hard rubberized material forming moulded foot pocket 33 which receives and retains a foot of a wearer. The result is a generally hard outer layer 32 and a soft inner layer 31 for foot comfort.
  • Fin 30 further comprises lateral hard splay rails 34 and 35 which provide lateral stiffness and also contribute to improved aqua dynamics of the fin.
  • layer 35 maybe substituted with either a medium hardness or soft layer.
  • inner layer 31 is in each embodiment a soft layer .
  • the fin according to two embodiments may be constructed from an inner soft layer and an outer medium hardness layer or from an inner soft layer and an outer hard layer.
  • Outer layers will be stiffor and harder than an inner foot pocket layer.
  • a soft layer is preferably within the range of 35 - 40 gerometers.
  • a medium layer is between 41 -60 gerometers and a hard layer is within the ran of 61
  • Figure 7 shows a cross section of fin 10 shown in figure 3 taken across line B-
  • Line B-B is closer to the wide tapered end 15 of fin 30 .
  • FIG 8 shows an exploded view of an assembly 40 for manufacture of a fin in accordance with an embodiment of a method aspect.
  • Assembly 40 comprises upper mould part 41 and lower mould part 42.
  • Mould part 41 includes a moulded recess 43 which has a moulded profile of an upper surface of a fin to be made form the mould
  • Mould part 42 includes a moulded outstanding profile 44 which has a moulded profile of an upper surface of a fin to be made form the mould.
  • Intermediate mould parts 41 and 42 is a foot mould 45 which allows formation of a foot pocket (such as foot pocket 12 shown in figure 3) Wben a fin is to be formed, layers forming an underside of a fin are disposed underneath foot mould 45 .
  • FIG 8 there are shown two layers 46 and 47 which will form the underside of a fin.
  • Layer 46 is preferably a hard stiff layer and layer 47 is a soft layer as it will form a tread in a foot pocket of the fin.
  • Abutting layer 46 is a layer 50 of a hard material overlain by a layer of soft material 51.
  • Soft layer 51 will during compression moulding of the fin when mould parts 41 and 42 are joined in opposing relationship migrate through channel 53 to form a heel strap of the fin.
  • Layer 48 is a soft layer which forms an inside upper layer of a foot pocket
  • Layer 49 is a hard compound layer and forms an outer upper surface of the fin.
  • a fin manufactured in accordance with the method of the invention described herein has advantages of stiffness and flexibility with retention of elasticity , reduced weight increased user comfort and softness and potentially improved manufacturing cycle time .
  • the costs of materials may be reduced due to the use of Jess hard material which is typically more expensive.
  • the bonding of layers may be by a combination of heat fusion and compression.
  • the method of construction may comprise the further preliminary step of milling the rubber layers to a predetermined thickness.
  • a preferred ( but non limitin ) layer thickness would be in the region of 10 - 15mm.
  • the layers can be milled to as low as 3mm thick by ruraning the layers through a rolling machine. Also, each layer may be of varying thicknesses

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Cette invention concerne une palme (30) faite de couches caoutchoutées laminées, comprenant: a) un corps de palme avec logement pour le pied (33), qui comprend une ouverture pour le passage du pied; b) un corps de palme comprenant une région arrière distale faisant partie intégrante du logement pour pied (33) et pouvant fléchir vers le haut, vers le bas et vers l'arrière du corps sous l'action de l'eau pendant l'emploi de la palme; c) des moyens (13) prenant sur le talon de l'utilisateur, destinés à maintenir le pied dans ledit logement pour pied; d) au moins une couche caoutchoutée extérieure (32) et au moins une couche caoutchoutée intérieure (31), la couche intérieure formant le logement pour le pied (33). La palme est fabriquée dans un moule par compression présentant une première (41) et une seconde (42) coquilles, et un moule pour pied (45) pour ledit logement (33).
PCT/AU2003/001191 2002-09-12 2003-09-11 Ameliorations apportees a des palmes et procede de fabrication Ceased WO2004024242A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003258381A AU2003258381B2 (en) 2002-09-12 2003-09-11 Improvements in swim fins and method of manufacture thereof
US11/077,911 US7077715B2 (en) 2002-09-12 2005-03-11 Swim fins and method of manufacture thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2002951380A AU2002951380A0 (en) 2002-09-12 2002-09-12 Improvements in swim fins and method of manufacture thereof
AU2002951380 2002-09-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/077,911 Continuation US7077715B2 (en) 2002-09-12 2005-03-11 Swim fins and method of manufacture thereof

Publications (1)

Publication Number Publication Date
WO2004024242A1 true WO2004024242A1 (fr) 2004-03-25

Family

ID=27792652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2003/001191 Ceased WO2004024242A1 (fr) 2002-09-12 2003-09-11 Ameliorations apportees a des palmes et procede de fabrication

Country Status (2)

Country Link
AU (1) AU2002951380A0 (fr)
WO (1) WO2004024242A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930451A1 (fr) * 2008-04-25 2009-10-30 Gerard Quilliou Chausson d'une palme de natation permettant de canaliser l'eau depuis le haut du coup de pied jusqu'au bas de la voilure

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436927B1 (fr) * 1990-01-12 1993-07-14 TECHNISUB S.p.A. Palme de natation avec voilure composite et son procédé de fabrication
US5304081A (en) * 1992-02-14 1994-04-19 Tabata Co. Ltd. Swim fin
US5387145A (en) * 1993-07-07 1995-02-07 Wagner; John L. Swim fins
EP0579046B1 (fr) * 1992-07-17 1996-11-20 TECHNISUB S.p.A. Palme de natation
EP0640361B1 (fr) * 1993-07-28 1997-03-12 TECHNISUB S.p.A. Palme de natation et son procédé de fabrication
US6152794A (en) * 1999-05-14 2000-11-28 Liu; Yen-Wei Swim fin
US6224443B1 (en) * 2000-03-10 2001-05-01 Earth & Ocean Sports, Inc. Multilayer swim fin and method
EP1192974A2 (fr) * 2000-09-29 2002-04-03 SCUBAPRO EUROPE S.r.l. Palme de natation et de plongée

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436927B1 (fr) * 1990-01-12 1993-07-14 TECHNISUB S.p.A. Palme de natation avec voilure composite et son procédé de fabrication
US5304081A (en) * 1992-02-14 1994-04-19 Tabata Co. Ltd. Swim fin
EP0579046B1 (fr) * 1992-07-17 1996-11-20 TECHNISUB S.p.A. Palme de natation
US5387145A (en) * 1993-07-07 1995-02-07 Wagner; John L. Swim fins
EP0640361B1 (fr) * 1993-07-28 1997-03-12 TECHNISUB S.p.A. Palme de natation et son procédé de fabrication
US6152794A (en) * 1999-05-14 2000-11-28 Liu; Yen-Wei Swim fin
US6224443B1 (en) * 2000-03-10 2001-05-01 Earth & Ocean Sports, Inc. Multilayer swim fin and method
EP1192974A2 (fr) * 2000-09-29 2002-04-03 SCUBAPRO EUROPE S.r.l. Palme de natation et de plongée

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930451A1 (fr) * 2008-04-25 2009-10-30 Gerard Quilliou Chausson d'une palme de natation permettant de canaliser l'eau depuis le haut du coup de pied jusqu'au bas de la voilure

Also Published As

Publication number Publication date
AU2002951380A0 (en) 2002-09-26

Similar Documents

Publication Publication Date Title
US5304081A (en) Swim fin
US5385494A (en) Foot brace and leveraged turning apparatus for surfboards
US7316597B2 (en) Traction pad for personal water board
US4129911A (en) Soft deck surfboard
US5454743A (en) Free style surfboard with removable foot pieces
US4838824A (en) Swimming flipper
JP3544896B2 (ja) サーフボード，ボディボード等のウォータースポーツ用ボード及びそのフィン
US4521220A (en) Swim fin for breaststroke swimmers
EP1192974B1 (fr) Palme de natation et de plongée
US20080108259A1 (en) Relief jet aperture swim fins with living-hinge blade
US5795204A (en) Combination water shoe and swim fin
US7077715B2 (en) Swim fins and method of manufacture thereof
US6620008B2 (en) Swim fin
WO2004024242A1 (fr) Ameliorations apportees a des palmes et procede de fabrication
US5533918A (en) Surfer's fin
USRE23006E (en) Swim fin
AU2003258381B2 (en) Improvements in swim fins and method of manufacture thereof
US3716881A (en) Buoyant manoeuvrable ski
US20230029809A1 (en) Accessory for water board for sport or recreation
WO2005028294A1 (fr) Planche aquatique
JP3754702B2 (ja) 独特の水中足ひれ
JP2001224708A (ja) 遊泳用足ひれ
WO2006058849A1 (fr) Palme de natation
CN218248385U (zh) 一种鱼尾型的脚蹼
AU701098C (en) Swimming aid

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003258381

Country of ref document: AU

Ref document number: 11077911

Country of ref document: US

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP