Running shoe

Details Running shoe Running shoe

1983-06-01

1985-01-08

Jaudon, Henry S.

Boots, shoes, and leggings

Soles

Spring heel

36 38, A43B 1328

Patent

active

044920466

ABSTRACT:
A running shoe has a longitudinal slot in the sole extending from its back edge into the arch region and dividing the shoe sole into upper and lower segments. A spring wire in this slot decreases the velocity of the heel impact and then, as the runner's weight shifts forward onto the ball and toes of the foot, launches the runner into a comfortable stride and reduces stress.

REFERENCES:
patent: 676267 (1899-01-01), Goldberg
patent: 1726028 (1929-08-01), Keller
patent: 2447603 (1948-08-01), Snyder
patent: 2508318 (1950-05-01), Wallach
patent: 3251144 (1966-05-01), Weitzner
patent: 3822490 (1974-07-01), Murawski
patent: 3886674 (1975-06-01), Pavia
patent: 3902260 (1975-09-01), Massella et al.
patent: 4030213 (1977-06-01), Daswick
patent: 4262433 (1981-04-01), Hagg et al.
patent: 4314413 (1982-02-01), Dassler
patent: 4360978 (1982-11-01), Simpkins

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