US3422470A - Swimming fin - Google Patents

Swimming fin Download PDF

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Publication number
US3422470A
US3422470A US666136A US3422470DA US3422470A US 3422470 A US3422470 A US 3422470A US 666136 A US666136 A US 666136A US 3422470D A US3422470D A US 3422470DA US 3422470 A US3422470 A US 3422470A
Authority
US
United States
Prior art keywords
web
fin
flaps
shoe
swimming
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
Application number
US666136A
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English (en)
Inventor
Lodovico Mares
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3422470A publication Critical patent/US3422470A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • a swimming fin comprising a shoe adapted to be worn on the foot and a web extending forwardly from the toe end of said shoe.
  • at least one flap is formed, directed in the same direction as said web and flexible in both directions from the web plane.
  • the present invention relates to swimming fins made of resilient material, such as rubber or rubber-like plastic material, of the kind comprising a shoe section, and a web extending forwardly from the toe end of said shoe.
  • the web of the fin is flexed while swimming substantially only in its front end part, while the intermediate part and/or the rear part of the web are substantially stiff. Therefore, in the known fins, only the flexible front part of the web substantially contributes to the swimmers propulsion, while the intermediate and/or rear parts of the web, constituting the main fraction of the web area, do not contribute, or contribute only up to a limited extent, to the swimmers propulsion.
  • one or more flaps are formed in the intermediate and/or rear parts of the fin web.
  • the said flaps are substantially directed in the same direction as the main web and are elastically flexible in both directions with respect to the fin web plane.
  • the said flaps automatically and elastically bend in the same direction as the flexible front part of the web, thus providing a supplementary propelling push, in addition to the main push provided by the inflected front part of the web.
  • FIG. 1 is a plan view of a fin according to the invention.
  • FIG. 2 is a perspective top view of the same fin with the main web and the small flaps flexed downwardly.
  • FIG. 3 is a bottom perspective view of the fin with the main web and the flaps flexed upwardly.
  • the swimming fin shown comprises a shoe 1 and a web 2 made integral with said shoe 1 and extending forwardly therefrom.
  • the shoe 1 and the web 2 are made of resilient material, such as rubber or plastic.
  • two sidewise arranged flaps 4 are formed by means of cuts 3. Said flaps 4 are directed in the same direction as the web 2, and are integrally connected at their rear ends to the web 2.
  • the web 2, as well as the ice flaps 4, are provided with longitudinal stiffening ribs 102, respectively, 104, which are formed on the top and on the bottom sides of web 2 and flaps 4, respectively. As shown in the drawings, these longitudinal ribs become progressively of reduced cross-section towards the front part of web 2 and flaps 4 until their front ends completely merge into the web, while the rear ends are connected to the toe end of shoe 1.
  • both the front part of the web 2 and the flaps 4 bend downwardly under the pressure of water, as shown in FIG. 2.
  • the flaps 4 bend clear of the'respective openings 5 in the Web 2 and therefore permit the passage of water through this substantially stiflf part of the web 2.
  • the inflected flaps 4 come to form inclined surfaces which determine a supplementary propelling push, analogous to, and concordant with, the push provided by the inflected front part of the web 2.
  • the web 2 and the auxiliary flaps 4 are bending upwardly, as shown in FIG.
  • the fin according to the invention can be considered as formed by a web 2 and two flaps 4 which all individually and elastically bend in the same directions while swimming.
  • a swimming fin adapted to assist in propelling a swimmer through the water and comprising a shoe part and a longitudinally extending web part formed of a resilient material, said sh-oe part adapted to be worn on the foot of a swimmer and having a toe end, said web part secured to said shoe part and extending forwardly from the toe end thereof, said web part having an upper surface and a lower surface, said web part having a front section spaced forwardly from the toe end of said shoe part and a rear section extending between and securing said front section to said shoe part, said front section being flexed relative to said shoe part when said web part is used in swimming while said rear section remains substantially rigid relative to said shoe part, longitudinally extending ribs formed on said web part and extending forwardly from said shoe part and said web part extend ing transversely therebetween, an opening in said web part spaced forwardly of said shoe part and a flap coextensive with said opening and formed from the material forming said web part, said flap integrally connected to the rear section of
  • said ribs comprise a pair of spaced ribs extending along the longitudinally extending edges of said web part and at least one longitudinally extending intermediate rib spaced between said edge ribs for dividing the said web part into at least two said web areas, and each said web area containing one of said flaps in the rear section thereof.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US666136A 1966-09-13 1967-09-07 Swimming fin Expired - Lifetime US3422470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2103366 1966-09-13

Publications (1)

Publication Number Publication Date
US3422470A true US3422470A (en) 1969-01-21

Family

ID=11175686

Family Applications (1)

Application Number Title Priority Date Filing Date
US666136A Expired - Lifetime US3422470A (en) 1966-09-13 1967-09-07 Swimming fin

Country Status (4)

Country Link
US (1) US3422470A (fr)
DE (1) DE1989748U (fr)
ES (1) ES143110Y (fr)
FR (1) FR1514533A (fr)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083071A (en) * 1976-01-20 1978-04-11 Roland Forjot Swim flippers
US4209866A (en) * 1978-10-02 1980-07-01 Arthur D. Little, Inc. Swim fin
USD266265S (en) 1978-10-17 1982-09-21 Dacor Corporation Swim fin
USD297754S (en) 1984-03-01 1988-09-20 Hwang Chrang Y Diving flipper
US4778423A (en) * 1987-10-19 1988-10-18 Ciccotelli Stephen S Thermoplastic swim fin
USD302999S (en) 1986-08-06 1989-08-22 Mccredie Donald B Swim fin
US5356323A (en) * 1990-12-31 1994-10-18 Evans Robert B Closed shoe swim fin
US5387145A (en) * 1993-07-07 1995-02-07 Wagner; John L. Swim fins
WO1995024242A1 (fr) * 1994-03-09 1995-09-14 Parr, Atsuko Article de natation
AU672354B3 (en) * 1994-03-09 1996-09-26 Michael Lancaster Parr Swimming aid
US5702277A (en) * 1993-07-07 1997-12-30 Wagner; John Lee High performance swim fin
US5709575A (en) * 1997-02-25 1998-01-20 Betrock; Irving Practice swim fin with perforations
US5746631A (en) * 1996-01-11 1998-05-05 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US6095879A (en) * 1998-05-14 2000-08-01 Mccarthy; Peter T. Methods for creating consistent large scale blade deflections
US6120336A (en) * 1997-12-08 2000-09-19 Kawai; Takashi Diving fin
WO2001078845A1 (fr) * 2000-04-13 2001-10-25 Evans Robert B Palme effilee en forme de lance
US20020025744A1 (en) * 1998-05-14 2002-02-28 Mccarthy Peter T. Methods for creating large scale focused blade deflections
US6371821B1 (en) 1996-01-11 2002-04-16 Nature's Wing Fin Designs, Llc High efficiency hydrofoil and swim fin designs
US6394863B1 (en) * 2000-10-11 2002-05-28 Chien-Rung Chen Fin with movable flap
US6482059B2 (en) 1997-05-09 2002-11-19 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6520816B1 (en) * 2002-04-10 2003-02-18 Chia-Te Hu Diving fins
GB2392388A (en) * 2002-08-09 2004-03-03 Chia-Te Hu Swimming or diving fin having U-shaped flexible flap
US20040127117A1 (en) * 2002-07-19 2004-07-01 Mccarthy Peter T. High deflection hydrofoils and swim fins
US20050026519A1 (en) * 2003-08-01 2005-02-03 Chia-Te Hu Diving fins
US20060025027A1 (en) * 2004-07-30 2006-02-02 Chien-Kuan Chen Swim fin
US20070077831A1 (en) * 2005-09-30 2007-04-05 Yu-I Kuo Fins
US20080254691A1 (en) * 2007-04-10 2008-10-16 Scott Richard A Kayak paddle
US20090325434A1 (en) * 2008-06-30 2009-12-31 Warnaco Swimwear, Inc. Swim fin
US20100120304A1 (en) * 2008-11-12 2010-05-13 Twombly Susan M Swim Fin Device
US20110081813A1 (en) * 2008-11-12 2011-04-07 Twombly Susan M Recreational Swimming Ensemble
US8641464B2 (en) 2010-04-08 2014-02-04 Cetatek Holdings Inc. Flippers, boots, systems including same, and methods of using same
US9364717B2 (en) * 2014-01-16 2016-06-14 Kathleen Davis Swimming fin
US9440114B2 (en) 2012-10-12 2016-09-13 Cetatek Holdings Inc. Boot sole system and fin for same
WO2017190189A1 (fr) * 2016-05-06 2017-11-09 DMC Industries Pty Ltd Palme de natation
US10675508B2 (en) 2010-04-08 2020-06-09 Cetatek Holdings Inc. Coupleable fin apparatuses and boot toe bodies
US10981036B2 (en) * 2019-05-23 2021-04-20 Harrison Marsland Variable aquatic training aid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055025A (en) * 1959-04-20 1962-09-25 Ferraro Luigi Swimming fins or flippers
US3183529A (en) * 1964-03-16 1965-05-18 Beuchat Georges Swimmer's foot-fin with thrust-accelerating device
FR1407570A (fr) * 1964-09-09 1965-07-30 Dispositif favorisant la propulsion du nageur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055025A (en) * 1959-04-20 1962-09-25 Ferraro Luigi Swimming fins or flippers
US3183529A (en) * 1964-03-16 1965-05-18 Beuchat Georges Swimmer's foot-fin with thrust-accelerating device
FR1407570A (fr) * 1964-09-09 1965-07-30 Dispositif favorisant la propulsion du nageur

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083071A (en) * 1976-01-20 1978-04-11 Roland Forjot Swim flippers
US4209866A (en) * 1978-10-02 1980-07-01 Arthur D. Little, Inc. Swim fin
USD266265S (en) 1978-10-17 1982-09-21 Dacor Corporation Swim fin
USD297754S (en) 1984-03-01 1988-09-20 Hwang Chrang Y Diving flipper
USD302999S (en) 1986-08-06 1989-08-22 Mccredie Donald B Swim fin
US4778423A (en) * 1987-10-19 1988-10-18 Ciccotelli Stephen S Thermoplastic swim fin
US5356323A (en) * 1990-12-31 1994-10-18 Evans Robert B Closed shoe swim fin
US5702277A (en) * 1993-07-07 1997-12-30 Wagner; John Lee High performance swim fin
US5387145A (en) * 1993-07-07 1995-02-07 Wagner; John L. Swim fins
US5810629A (en) * 1994-03-09 1998-09-22 Atsuko Parr Swimming aid
AU672354B3 (en) * 1994-03-09 1996-09-26 Michael Lancaster Parr Swimming aid
WO1995024242A1 (fr) * 1994-03-09 1995-09-14 Parr, Atsuko Article de natation
US6050868A (en) * 1996-01-11 2000-04-18 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US5746631A (en) * 1996-01-11 1998-05-05 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US20070173143A1 (en) * 1996-01-11 2007-07-26 Mccarthy Peter T High efficiency hydrofoil and swim fin designs
US7101240B2 (en) 1996-01-11 2006-09-05 Mccarthy Peter T High efficiency hydrofoil and swim fin designs
US6497597B2 (en) 1996-01-11 2002-12-24 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6146224A (en) * 1996-01-11 2000-11-14 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US20040248481A1 (en) * 1996-01-11 2004-12-09 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6719599B2 (en) 1996-01-11 2004-04-13 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6607411B1 (en) 1996-01-11 2003-08-19 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6371821B1 (en) 1996-01-11 2002-04-16 Nature's Wing Fin Designs, Llc High efficiency hydrofoil and swim fin designs
US6585548B2 (en) 1996-01-11 2003-07-01 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US5709575A (en) * 1997-02-25 1998-01-20 Betrock; Irving Practice swim fin with perforations
US6482059B2 (en) 1997-05-09 2002-11-19 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6120336A (en) * 1997-12-08 2000-09-19 Kawai; Takashi Diving fin
US7465205B2 (en) 1998-05-14 2008-12-16 Mccarthy Peter T Methods for creating consistent large scale blade deflections
US20040152376A1 (en) * 1998-05-14 2004-08-05 Mccarthy Peter T. Methods for creating consistent large scale blade blade deflections
US6095879A (en) * 1998-05-14 2000-08-01 Mccarthy; Peter T. Methods for creating consistent large scale blade deflections
US7018256B2 (en) 1998-05-14 2006-03-28 Mccarthy Peter T Methods for creating large scale focused blade deflections
US7862395B2 (en) 1998-05-14 2011-01-04 Mccarthy Peter T Methods for creating consistent large scale blade deflections
US7581997B2 (en) 1998-05-14 2009-09-01 Mccarthy Peter T Method for creating consistent large scale blade deflections
US6712656B2 (en) 1998-05-14 2004-03-30 Mccarthy Peter T. Methods for creating consistent large scale blade deflections
US20020025744A1 (en) * 1998-05-14 2002-02-28 Mccarthy Peter T. Methods for creating large scale focused blade deflections
US20070173142A1 (en) * 1998-05-14 2007-07-26 Mccarthy Peter T Methods for creating consistent large scale blade deflections
US20050181689A1 (en) * 1998-05-14 2005-08-18 Mccarthy Peter T. Methods for creating consistent large scale blade deflections
US20080032574A1 (en) * 1998-05-14 2008-02-07 Amy L. Goldman Method for creating consistent large scale blade deflections
US6843693B2 (en) 1998-05-14 2005-01-18 Mccarthy Peter T. Methods for creating large scale focused blade deflections
US20080045095A1 (en) * 1998-05-14 2008-02-21 Mccarthy Peter T Methods for creating consistent large scale blade deflections
US6413133B1 (en) 1998-05-14 2002-07-02 Mccarthy Peter T. Methods for creating consistent large scale blade deflections
US6918805B2 (en) 1998-05-14 2005-07-19 Mccarthy Peter T. Methods for creating consistent large scale blade deflections
WO2001078845A1 (fr) * 2000-04-13 2001-10-25 Evans Robert B Palme effilee en forme de lance
US6537114B2 (en) * 2000-04-13 2003-03-25 Robert B. Evans Adjustable swim fin
US6354894B1 (en) 2000-04-13 2002-03-12 Robert B. Evans Spear-blade swim fin
US6394863B1 (en) * 2000-10-11 2002-05-28 Chien-Rung Chen Fin with movable flap
US6520816B1 (en) * 2002-04-10 2003-02-18 Chia-Te Hu Diving fins
US6884134B2 (en) 2002-07-19 2005-04-26 Mccarthy Peter T. High deflection hydrofoils and swim fins
US20050176318A1 (en) * 2002-07-19 2005-08-11 Mccarthy Peter T. High deflection hydrofoils and swim fins
US20070049140A1 (en) * 2002-07-19 2007-03-01 Mccarthy Peter T High deflection hydrofoils and swim fins
US20070037459A1 (en) * 2002-07-19 2007-02-15 Mccarthy Peter T High deflection hydrofoils and swim fins
US7601041B2 (en) 2002-07-19 2009-10-13 Mccarthy Peter T High deflection hydrofoils and swim fins
US20040127117A1 (en) * 2002-07-19 2004-07-01 Mccarthy Peter T. High deflection hydrofoils and swim fins
GB2392388A (en) * 2002-08-09 2004-03-03 Chia-Te Hu Swimming or diving fin having U-shaped flexible flap
DE10238881A1 (de) * 2002-08-09 2004-03-04 Chia-Te Hu Taucherflossen
US20050026519A1 (en) * 2003-08-01 2005-02-03 Chia-Te Hu Diving fins
US20060025027A1 (en) * 2004-07-30 2006-02-02 Chien-Kuan Chen Swim fin
US7115011B2 (en) * 2004-07-30 2006-10-03 Chien-Kuan Chen Swim fin
US20070077831A1 (en) * 2005-09-30 2007-04-05 Yu-I Kuo Fins
US20080254691A1 (en) * 2007-04-10 2008-10-16 Scott Richard A Kayak paddle
US7488228B2 (en) * 2007-04-10 2009-02-10 Scott Richard A Kayak paddle
US20090325434A1 (en) * 2008-06-30 2009-12-31 Warnaco Swimwear, Inc. Swim fin
US7753749B2 (en) 2008-06-30 2010-07-13 Warnaco Swimwear, Inc. Swim fin
US20100120304A1 (en) * 2008-11-12 2010-05-13 Twombly Susan M Swim Fin Device
US7854638B2 (en) 2008-11-12 2010-12-21 Twombly Susan M Swim fin device
US20110081813A1 (en) * 2008-11-12 2011-04-07 Twombly Susan M Recreational Swimming Ensemble
US8641464B2 (en) 2010-04-08 2014-02-04 Cetatek Holdings Inc. Flippers, boots, systems including same, and methods of using same
US10675508B2 (en) 2010-04-08 2020-06-09 Cetatek Holdings Inc. Coupleable fin apparatuses and boot toe bodies
US9737762B2 (en) 2010-04-08 2017-08-22 Cetatek Holdings Inc. Flippers, boots, systems including same, and methods of using same
US10112079B2 (en) 2010-04-08 2018-10-30 Cetatek Holdings Inc. Flippers, boots, systems including same, and methods of using same
US9440114B2 (en) 2012-10-12 2016-09-13 Cetatek Holdings Inc. Boot sole system and fin for same
US9364717B2 (en) * 2014-01-16 2016-06-14 Kathleen Davis Swimming fin
WO2017190189A1 (fr) * 2016-05-06 2017-11-09 DMC Industries Pty Ltd Palme de natation
KR20190002663A (ko) * 2016-05-06 2019-01-08 디엠씨 인더스트리즈 피티와이 엘티디 수영용 오리발
US20190151718A1 (en) * 2016-05-06 2019-05-23 DMC Industries Pty Ltd Swimming flipper
JP2019516528A (ja) * 2016-05-06 2019-06-20 ディーエムシーインダストリーズピーティーワイリミテッド 水泳用足ひれ
CN109069905A (zh) * 2016-05-06 2018-12-21 Dmc工业股份有限公司 游泳脚蹼
US10688347B2 (en) 2016-05-06 2020-06-23 DMC Industries Pty Ltd Swimming flipper
AU2017260572B2 (en) * 2016-05-06 2020-06-25 DMC Industries Pty Ltd Swimming flipper
CN109069905B (zh) * 2016-05-06 2020-08-21 Dmc工业股份有限公司 游泳脚蹼
US10981036B2 (en) * 2019-05-23 2021-04-20 Harrison Marsland Variable aquatic training aid

Also Published As

Publication number Publication date
ES143110U (es) 1969-07-16
FR1514533A (fr) 1967-02-23
DE1989748U (de) 1968-07-18
ES143110Y (es) 1970-01-16

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