1988-10-11
1990-06-19
Crow, Stephen R.
Undertaking
272137, 272141, A63B 2102
Patent
active
049346911
ABSTRACT:
A length of rope of the type utilized in a present jump rope, with an extended handle portion at each end of the length of rope. Each of the handle members would comprise a main cylinder having a bore throughout its length, with the length of rope threaded through the bore. Intermediate the rope body and the wall of the handle, there would be provided a resilient spring member extending substantially the length of the handle, and, with the end of the rope extending out of and secured to the distal end of the spring, with the proximal end of the spring secured within the handle, so that pulling the handles away from one another compresses the coil springs and establishes an exercise force of the user.
REFERENCES:
patent: 3972238 (1973-08-01), Thatcher
patent: 4330118 (1982-05-01), Race
patent: 4605219 (1986-08-01), Mahana et al.
patent: 4729560 (1988-03-01), Cho
patent: 4733861 (1988-03-01), Plunkett
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