Undertaking
Patent
1973-01-12
1976-06-29
Pinkham, Richard C.
Undertaking
272 68, 272 72, 272 71, 272 73, A63B 2300, A63B 2100, A63B 2304
Patent
active
039662047
ABSTRACT:
Fitness apparatus for the performance of gymnastic exercises based on stress and relaxation has a plurality of tough elastic ring-shaped hand grips, and connector including at least one endless elastic tensile element connected to two of said ring-shaped hand grips by being passed through each such hand grip and formed into a knot. In a preferred use, at least one other of the hand grips is engaged with the connector intermediate the first two hand grips, e.g. by means of a knot. The hand grips are preferably of rubber like material, and may have an I-shaped cross-section with convex inner and outer peripheral surfaces, to improve gripping with the hand.
REFERENCES:
patent: 588017 (1897-08-01), Sandow
patent: 605237 (1898-06-01), Spink
patent: 691295 (1902-01-01), Schneider
patent: 740443 (1903-10-01), Korth
patent: 3454274 (1969-07-01), Kaneshiro
patent: 3529820 (1970-09-01), Templeton
patent: 3531113 (1970-09-01), Sherman et al.
patent: 3606321 (1971-09-01), Macoulis
patent: 3807730 (1974-04-01), Dalton et al.
Browne William R.
Markva Neil F.
Pinkham Richard C.
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