Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached
Reexamination Certificate
2005-01-18
2005-01-18
Swinehart, Ed (Department: 3617)
Buoys, rafts, and aquatic devices
Swimming aid to increase stroke efficiency
Foot attached
Reexamination Certificate
active
06843693
ABSTRACT:
Methods are disclosed to design resilient hydrofoils (164) which are capable of having substantially similar large scale blade deflections under significantly varying loads. The methods permit the hydrofoil (164) to experience significantly large-scale deflections to a significantly reduced angle of attack under a relatively light load while avoiding excessive degrees of deflection under increased loading conditions. A predetermined compression range on the lee portion of said hydrofoil (164) permits the hydrofoil (164) to deflect to a predetermined reduced angle of attack with significantly low bending resistance. This predetermined compression range is significantly used up during the deflection to the predetermined angle of attack in an amount effective to create a sufficiently large leeward shift in the neutral bending surface with the load bearing portions of the hydrofoil (164) to permit the hydrofoil (164) to experience a significantly large increase in bending resistance as increased loads deflect the hydrofoil (164) beyond the predetermined reduced angle of attack. The shift in the neutral bending surface causes a significant increase in the elongation range required along an attacking portion of the hydrofoil (164) after the predetermined angle of attack is exceed. Methods are also disclosed for designing the hydrofoil (164) so that it has a natural resonant frequency that is sufficiently close the frequency of the reciprocating strokes used to attain propulsion in an amount sufficient to create harmonic wave addition that creates an amplified oscillation in the free end of the reciprocating hydrofoil (164). Methods are also disclosed for focusing energy storage and blade deflections along focused regions of load bearing members and the hydrofoil (164). Methods are also disclosed for reducing induced drag vortex formation along the lee surface of the hydrofoil (164), reducing drag and increasing the formation of lift forces.
REFERENCES:
patent: 144538 (1873-10-01), Harsen
patent: 169396 (1875-11-01), Ahlstrom
patent: 234305 (1880-05-01), Bovey
patent: 5384 (1883-11-01), Heathom
patent: 476092 (1892-12-01), Valente
patent: 783012 (1905-02-01), Biedermann et al.
patent: 787291 (1905-04-01), Michiels
patent: 871059 (1907-11-01), Douse
patent: 998146 (1911-07-01), Alfier et al.
patent: 1324722 (1919-12-01), Bergin
patent: 1607857 (1926-05-01), Zukal
patent: 1684714 (1928-09-01), Perry
patent: 2241305 (1941-05-01), Hill, Jr.
patent: 2321009 (1943-06-01), Churchill
patent: 2343468 (1944-03-01), Messinger
patent: 2423571 (1947-07-01), Wilen
patent: 2588363 (1952-03-01), Corlieu
patent: 2850487 (1958-09-01), D'Alello
patent: 2865033 (1958-12-01), Jayet
patent: 2889563 (1959-06-01), Lamb et al.
patent: 2903719 (1959-09-01), Wozencraft
patent: 2950487 (1960-08-01), Woods
patent: 3019458 (1962-02-01), Barbieri et al.
patent: 3055025 (1962-09-01), Ferraro et al.
patent: 3082442 (1963-03-01), Cousteau et al.
patent: 3084355 (1963-04-01), Ciccotelli
patent: 3086492 (1963-04-01), Holley
patent: 3112503 (1963-12-01), Girden
patent: 3171142 (1965-03-01), Auzols
patent: 3239857 (1966-03-01), Gwynne
patent: 3256540 (1966-06-01), Novelli
patent: 3411165 (1968-11-01), Murdoch
patent: 3422470 (1969-01-01), Mares
patent: 3453981 (1969-07-01), Gause
patent: 3491997 (1970-01-01), Winters
patent: 3665535 (1972-05-01), Picken
patent: 3773011 (1973-11-01), Gronier
patent: 3922741 (1975-12-01), Semeia
patent: 3934290 (1976-01-01), Le Vasseur
patent: 4007506 (1977-02-01), Rasmussen
patent: 4025977 (1977-05-01), Cronin
patent: 4083071 (1978-04-01), Forjot
patent: 4193371 (1980-03-01), Baulard-Caugan
patent: 4197869 (1980-04-01), Moncrieff-Yeates
patent: 4209866 (1980-07-01), Loeffler
patent: 4342558 (1982-08-01), Wilson
patent: D278165 (1985-03-01), Evans
patent: 4521220 (1985-06-01), Schoofs
patent: 4541810 (1985-09-01), Wenzel
patent: 4657515 (1987-04-01), Ciccotelli
patent: 4689029 (1987-08-01), Ciccotelli
patent: 4738645 (1988-04-01), Garofalo
patent: 4752259 (1988-06-01), Tackett et al.
patent: 4773885 (1988-09-01), Ciccotelli
patent: 4775343 (1988-10-01), Lamont et al.
patent: 4781637 (1988-11-01), Caires
patent: 4820218 (1989-04-01), Van de Pol
patent: D302999 (1989-08-01), McCredie
patent: 4857024 (1989-08-01), Evans
patent: 4869696 (1989-09-01), Ciccotelli
patent: 4895537 (1990-01-01), Ciccotelli
patent: 4929206 (1990-05-01), Evans
patent: 4934971 (1990-06-01), Picken
patent: 4940437 (1990-07-01), Piatt
patent: 4944703 (1990-07-01), Mosier
patent: 4954111 (1990-09-01), Cressi
patent: 4954112 (1990-09-01), Negrini et al.
patent: D327933 (1992-07-01), Evans
patent: D327934 (1992-07-01), Evans
patent: D327935 (1992-07-01), Evans
patent: D328118 (1992-07-01), Evans
patent: 5163859 (1992-11-01), Beltrani et al.
patent: D340272 (1993-10-01), Evans
patent: 5304081 (1994-04-01), Takizawa
patent: 5324219 (1994-06-01), Beltrani et al.
patent: 5356323 (1994-10-01), Evans
patent: 5358323 (1994-10-01), Ripley
patent: 5358439 (1994-10-01), Paolo
patent: D353181 (1994-12-01), Evans
patent: 5387145 (1995-02-01), Wagner
patent: 5417599 (1995-05-01), Evans
patent: 5429536 (1995-07-01), Evans
patent: 5435764 (1995-07-01), Testa et al.
patent: 5443593 (1995-08-01), Garofalo
patent: 5522748 (1996-06-01), Cressi
patent: 5527197 (1996-06-01), Evans
patent: 5533918 (1996-07-01), Sanders
patent: 5595518 (1997-01-01), Ours
patent: 5597336 (1997-01-01), Evans
patent: D393684 (1998-04-01), Lin
patent: 5746631 (1998-05-01), McCarthy
patent: D396897 (1998-08-01), Evans
patent: 5810629 (1998-09-01), Parr
patent: D404456 (1999-01-01), Evans
patent: 6050868 (2000-04-01), McCarthy
patent: 6095879 (2000-08-01), McCarthy
patent: 6126503 (2000-10-01), Viale et al.
patent: 6146224 (2000-11-01), McCarthy
patent: 6364728 (2002-04-01), Viale et al.
patent: 1075997 (1960-02-01), None
patent: 3438808 (1986-04-01), None
patent: 259 353 (1988-08-01), None
patent: 0 308 998 (1989-03-01), None
patent: 787291 (1935-09-01), None
patent: 1245395 (1960-01-01), None
patent: 1208636 (1960-02-01), None
patent: 1.245.395 (1960-09-01), None
patent: 1501208 (1967-11-01), None
patent: 2 058 941 (1971-05-01), None
patent: 2 213 072 (1974-08-01), None
patent: 2 543 841 (1983-04-01), None
patent: 2574 748 (1986-06-01), None
patent: 1284765 (1972-08-01), None
patent: 17033 (1980-10-01), None
patent: 553307 (1956-04-01), None
patent: 625377 (1961-09-01), None
patent: 61-6097 (1986-01-01), None
patent: 62 134395 (1987-06-01), None
patent: 1323 463 (1986-03-01), None
Rossier, Robert N., entitled, “Moving Forward—Getting your best kick in the water can come from a combination of design, efficiency and hydrodynamics in fins”, Alert Diver, Nov.-Dec. 1997, pp. 26-28.
Triantafyllou, Michael S. and Triantafyllou George S., entitled, “An Efficient Swimming Machine”, Scientific American, Mar. 1995, pp. 64-70.
“3302 of 1880” (Picture From Book-Found in US PTO).
“Test Dive” Article in Jan./Feb. 1996 issue ofSport Diver Magazine.
“Oceanic V-Drive Fins” in May/Jun. 1996 Issue ofSport Diver Magazine.
Walton and Katz “Application of Leading-Edge Vortex Manipulations to Reduce Wing Rock Amplitudes”Journal of Aircraftvol. 30, No. 4, pp. 555-559.
Traub and Nurick “Effects of Wing-Tip Vortex Flaps”Journal of Aircraftvol. 30, No. 4, pp. 557-559.
Grantz and Marchman III“ Trailing Edge Flap Influence on Leading Edge Vortex Flap Aerodynamics”,Journal of Aircraftvol. 20, No. 2, pp. 165-169.
Rao “An Exploratory Study of Area-Efficient Vortex Flap Concepts”Journal of Aircraft, vol. 20, No. 12, pp. 1062-1067.
Lamar and Campbell “Vortex Flaps-Advanced Control Devices for Supercruise Fighters” Jan. 1984, Aerospace America.
“BZ” bodysurfing fin (Picture), 1stproduction in 1990.
“Blade Pro” bodysurfing fin (Picture), 1stproduction 1991.
“Wave Rebel” bodysurfing fin (Picture), 1stproduction 1994.
Art. 1400 Pinna “Professional” Fin (1989).
Knobbe Martens Olson & Bear LLP
Swinehart Ed
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