Insole for footwear having flexible envelope means

Details Insole for footwear having flexible envelope means Insole for footwear having flexible envelope means

1978-08-18

1980-01-15

Kee Chi, James

Boots, shoes, and leggings

Insoles

Laminated

128594, A43B 1340, A43B 1341

Patent

active

041831551

ABSTRACT:
An insole made up of an upper wall and a lower wall of soft, flexible thin material sealed together around a marginal edge to form an envelope, a relatively rigid member in said envelope smaller than the area between the edges of the envelope, the upper wall being of greater area than the lower wall providing a slack portion so that the upper wall will slide on the relatively rigid member causing a massaging action to the feet.

REFERENCES:
patent: 80071 (1868-07-01), Heneage
patent: 1504908 (1924-08-01), Sato
patent: 1659339 (1928-02-01), Vetterling
patent: 2004906 (1935-06-01), Simister
patent: 2084517 (1937-06-01), Vogel
patent: 4123855 (1978-11-01), Thedford

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