1988-04-18
1990-09-11
Apley, Richard J.
Undertaking
272 74, 272143, A63B 520
Patent
active
049556010
ABSTRACT:
An all-occasion jumping rope comprises two handles, two freely rotatable holders inside the handles, a flexible rope, a flexible string free slidable inside the rope, a structure to hold the flexible rope to allow the twisting of rope to transfer to the free rotatable ends and structure to adjust the length of the string to change the length of the rope so that all people of different height including growing children can use it all the time without buying a new rope of longer length.
REFERENCES:
patent: 623698 (1899-04-01), Beckh
patent: 2253075 (1941-08-01), Johnson
patent: 2869872 (1959-01-01), Nissen
patent: 4177985 (1979-12-01), Hlasnicek et al.
Popular Mechanics, 3/1979 "Rediscover the Jump Rope".
Apley Richard J.
Crosby D. F.
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