Liquid filled insoles

Details Liquid filled insoles Liquid filled insoles

1976-05-20

1977-04-19

Guest, Alfred R.

Boot and shoe making

Processes

Miscellaneous parts

36 44, A43D, A43D 2900

Patent

active

040179311

ABSTRACT:
A hollow insole provided with non-communicating compartments which are filled with liquid to form individual foot-supporting cushions. Included in the invention is a method of making the insole.

REFERENCES:
patent: 1517171 (1924-11-01), Rosenwasser
patent: 2477588 (1949-08-01), Dumm
patent: 2549343 (1951-04-01), Stoiner
patent: 3063076 (1962-11-01), Williams
patent: 3418732 (1968-12-01), Marshack
patent: 3724106 (1973-04-01), Magidson
patent: 3922801 (1975-12-01), Zente

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