Stomach exercise device

Details Stomach exercise device Stomach exercise device

1990-12-06

1991-12-03

Apley, Richard J.

Undertaking

272 93, A63B 2100

Patent

active

050694480

ABSTRACT:
A stomach exercise device includes a pneumatic cylinder incorporating a piston and a handled piston rod. The bottom of the pneumatic cylinder is movably connected to a base through a universal joint which permits the pneumatic cylinder to turn relative to the base. The base can be positioned beneath the two thighs of a sitting exerciser while he moves the piston rod up and down or turn it to and fro so as to alternately bent and straighten or twist the upper portion of his body.

REFERENCES:
patent: 3638941 (1972-02-01), Kulkens
patent: 4351527 (1982-09-01), Crisp
patent: 4863162 (1989-09-01), Neckmann

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