Composite insole

Details Composite insole Composite insole

1991-04-12

1992-06-23

Sewell, Paul T.

Boots, shoes, and leggings

Insoles

36 76C, 36 93, A43B 1338, A43B 2300

Patent

active

051231808

ABSTRACT:
Insole formed as a composite of a network of reinforcing fibers embedded in a matrix of a thermoplastic material having a softening temperature in the order of 90.degree. C. and retains its softening for a reasonable time at a lower temperature that is not uncomfortable to the human skin. The insole is formed to the shape of the bottom of the wearer's foot by placing it while still soft in the shoe and allowing it to harden while being subjected to the wearer's standing weight.

REFERENCES:
patent: 4520581 (1985-06-01), Irwin et al.
patent: 4580356 (1986-04-01), David
patent: 4651445 (1987-03-01), Hannibal
patent: 4756096 (1988-07-01), Meyer
patent: 4774954 (1988-10-01), Ibrahim
patent: 4791736 (1988-12-01), Phillips

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