Rhythmic exercising apparatus

Details Rhythmic exercising apparatus Rhythmic exercising apparatus

1978-03-20

1980-03-18

Johnson, Richard J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

272 93, A63F 900

Patent

active

041935950

ABSTRACT:
A rhythmic exercising apparatus formed of an annular body with a hole large enough to receive a foot therethrough and being provided with an index orientation member integral therewith for directing the position of the apparatus with respect to the travel of the user. The lower surface of the body is provided with grooves or ridges to prevent it from sliding. The annular body is also formed to minimize braking by tensile forces acting thereon through provision of a cut or slit therein.

REFERENCES:
patent: 1489550 (1924-04-01), Shaffer
patent: 1513968 (1924-11-01), Crandall
patent: 1547273 (1925-07-01), Trayers
patent: 1662278 (1928-03-01), Nelson
patent: 1815443 (1931-07-01), Mitchell
patent: 2158475 (1939-05-01), Montine
patent: 2506932 (1950-05-01), McAfee
patent: 2891793 (1959-06-01), Mudry
patent: 3115340 (1963-12-01), Stasiuk
patent: 3823942 (1974-07-01), Duncan
patent: 3879034 (1975-04-01), Petrusek
patent: 3977678 (1976-08-01), Hedberg
patent: 4079939 (1978-03-01), Raistakka

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