Plastic foot support with reinforcing struts

Details Plastic foot support with reinforcing struts Plastic foot support with reinforcing struts

1984-05-07

1986-02-25

Kee Chi, James

Boots, shoes, and leggings

Boots and shoes

Foot-supporting or foot-conforming feature

36 44, 128595, 128614, A43B 722, A43B 1340

Patent

active

045718571

ABSTRACT:
Foot supports for use in footwear are molded in polypropylene sheet and include a network of longitudinal and transverse reinforcing ribs integrally molded with the support and extending across an arch-supporting area thereof, the ribs resisting stresses on the support during wear and maintaining the shape of the support without adversely affecting its resilience. The supports can be shaped to an individual's foot by heating in boiling water.

REFERENCES:
patent: 2404731 (1946-07-01), Johnson
patent: 2486653 (1949-11-01), Hukill
patent: 2502774 (1950-04-01), Alianiello
patent: 2856771 (1958-10-01), Anderson
patent: 3081774 (1963-03-01), Lelyveld
patent: 3244176 (1966-04-01), Neu
patent: 3780742 (1973-12-01), Madgy
patent: 4232457 (1980-11-01), Mosher
patent: 4485568 (1984-12-01), Landi et al.

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