Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached
Patent
1993-04-16
1994-03-01
Sotelo, Jesus D.
Buoys, rafts, and aquatic devices
Swimming aid to increase stroke efficiency
Foot attached
A63B 3110
Patent
active
052901947
ABSTRACT:
A swim fin having differential stiffness characteristics is provided which includes shoe and blade portions, the shoe portion being configured to receive a swimmer's foot and the blade portion being configured to provide the desired hydrodynamic effect. The shoe portion defines a cavity which is formed in part by a differential stiffness expanse which overlies the forepart of the user's foot. The expanse includes a resilient toe region which covers the swimmer's toes and a less resilient instep region which covers the instep of the swimmer's foot. The blade portion extends from the shoe portion and is operatively connected to the instep region so as to provide the wearer with instep-directed blade portion control.
REFERENCES:
patent: Re23006 (1948-06-01), Churchill
patent: 1074595 (1913-10-01), Aumont
patent: 1571462 (1926-02-01), Waldron et al.
patent: 1793937 (1931-02-01), Knudsen
patent: 2099973 (1937-11-01), Corlieu
patent: 2179124 (1939-11-01), Jesnig
patent: 2321009 (1943-06-01), Churchill
patent: 2332252 (1943-10-01), Payne
patent: 2343468 (1944-03-01), Messinger
patent: 2541738 (1951-02-01), Bassichis
patent: 2588363 (1952-03-01), De Corlieu
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: 2954617 (1960-10-01), Yamaguchi
patent: 3042943 (1962-07-01), Katehis
patent: 3107372 (1963-10-01), Brown et al.
patent: 3112503 (1963-12-01), Girden
patent: 3178738 (1965-04-01), La Trell
patent: 3239857 (1966-03-01), Gwynne
patent: 3302222 (1967-02-01), Ferraro
patent: 3605292 (1971-09-01), Goldblatt
patent: 3640006 (1972-02-01), Kendrick
patent: 3676940 (1972-07-01), Shively
patent: 3683519 (1972-08-01), Creamer
patent: 3922741 (1975-12-01), Semeia
patent: 3936896 (1976-02-01), Creamer
patent: 3952351 (1976-04-01), Gisbert
patent: 4083071 (1978-04-01), Forjot
patent: 4322894 (1982-04-01), Dykes
patent: 4495715 (1985-01-01), Fredrickson et al.
patent: 4521220 (1985-06-01), Schoofs
patent: 4627820 (1986-12-01), Penebre
patent: 4645466 (1987-02-01), Ellis
patent: 4689029 (1987-08-01), Ciccotelli
patent: 4775345 (1988-10-01), Gifford
patent: 4778423 (1988-10-01), Ciccotelli
patent: 4884986 (1989-12-01), Gil
patent: 4889510 (1989-12-01), Piatt
patent: 4940437 (1990-07-01), Piatt
patent: 4948385 (1990-08-01), Hall
patent: 4952183 (1990-08-01), Gil
patent: 4954111 (1990-09-01), Cressi
patent: 4954112 (1990-09-01), Negrini et al.
patent: 4973049 (1990-11-01), Ciolino
patent: 5041039 (1991-08-01), Chang
patent: 5108328 (1992-04-01), Hull
patent: 5139450 (1992-08-01), Steele
Swimming World, vol. 26, No. 4, Apr. 1985, pp. 37-40.
Bordier Antoine J.
Sneddon Thomas M.
Kransco
Sotelo Jesus D.
LandOfFree
Swim fin with differential stiffness characteristics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Swim fin with differential stiffness characteristics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Swim fin with differential stiffness characteristics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-572711