Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached
Patent
1990-02-01
1991-08-20
Peters, Jr., Joseph F.
Buoys, rafts, and aquatic devices
Swimming aid to increase stroke efficiency
Foot attached
36 81, D21239, A63B 3108
Patent
active
050410393
ABSTRACT:
An amphibious shoe, which includes a show body having set therein a fastening plate at its front end for the connection thereto of a diving flipper. The diving flipper includes therein an unitary connecting rubber plate portion having a plurality of through-holes with a plurality of screws screwed upward to fasten in or screwed downward to disconnect from a plurality of internally threaded hollow stubs which extend from the fastening plate of the shoe body, so as to secure the diving flipper to or separate it from the shoe body.
REFERENCES:
patent: 1061264 (1913-05-01), Bys
patent: 2980926 (1961-04-01), Wolshin
patent: 3068499 (1962-12-01), Biskupsky
patent: 3178738 (1965-04-01), Trell
patent: 3521312 (1970-07-01), Laniev
patent: 3665535 (1972-05-01), Picken
patent: 3952351 (1976-04-01), Gisbert
patent: 4599071 (1986-07-01), Juanl
patent: 4895537 (1990-01-01), Ciccotelli
Bartz Clifford T.
Peters Jr. Joseph F.
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