Insole

Details Insole Insole

1987-03-25

1989-02-07

Kee Chi, James

Boots, shoes, and leggings

Insoles

36 44, 128594, A43B 1338

Patent

active

048022896

ABSTRACT:
In insole for promoting muscle activity has a first fluid cell confined to a toe area of the insole and a second fluid cell in the heel area. The cells are connected by at least one communicating duct which allows fluid to flow there between as a person walks on the insole. The duct has a valve system for controlling the flow as between the cells in a manner such that it may flow faster in one direction than the other.

REFERENCES:
patent: 2488382 (1949-11-01), Davis
patent: 3765422 (1973-10-01), Smith
patent: 3871117 (1975-03-01), Richmond et al.
patent: 4100686 (1978-07-01), Sgarlato
patent: 4123855 (1978-11-01), Thedford
patent: 4446634 (1984-05-01), Johnson et al.
patent: 4458430 (1984-07-01), Peterson
patent: 4567677 (1986-02-01), Zona

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