Jump rope

Details Jump rope Jump rope

1980-03-18

1981-08-04

Pinkham, Richard C.

Undertaking

428 10, A63B 520

Patent

active

042818320

ABSTRACT:
A jump rope featuring, in various aspects, a soft cushion element attached to a cord to prevent the cord from striking the ground, thereby decreasing noise; and a grip at each end of the cord including a ring attached to the cord, the cord being adjustably threaded through the ring to form a loop which can be increased or decreased in size to change the operative length of the rope.

REFERENCES:
patent: 336149 (1886-02-01), Noyes
patent: 623698 (1899-04-01), Beckh
patent: 1628023 (1927-05-01), Adkins
patent: 1922169 (1933-08-01), Martin
patent: 2223174 (1940-11-01), Hughes
patent: 2253075 (1941-08-01), Johnson
patent: 2318680 (1943-05-01), Ellinger
patent: 2505610 (1950-04-01), Ellinger
patent: 2639532 (1953-05-01), Seewald
patent: 3268938 (1966-08-01), Smith
patent: 3637452 (1972-01-01), Sanders

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