Physical exercise apparatus

Details Physical exercise apparatus Physical exercise apparatus

1988-02-23

1989-01-24

Millin, Vincent

Undertaking

272114, 280206, A63B 2508, A63G 100

Patent

active

047996676

ABSTRACT:
The invention relates to a physical exercise apparatus comprising three nested frame elements mounted inside one another for rotation about axes offset by 90.degree. from one another. The thus established gimbal mounting of the frame elements permits a person occupying the innermost frame element to assume any angular position in space solely by displacing his weight to thereby fortify his muscles an improve his sense of equilibrium.

REFERENCES:
patent: 2923545 (1960-02-01), Lytle
patent: 3013806 (1961-12-01), Boyd
patent: 3083037 (1963-03-01), Gordon et al.
patent: 3141669 (1964-07-01), Yun Chul
patent: 3276777 (1966-10-01), Pruitt Sr.
patent: 4232662 (1980-11-01), Barber

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