Method of footwear manufacture

Details Method of footwear manufacture Method of footwear manufacture

1989-06-22

1991-07-16

Dawson, Robert A.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 466, 264244, B29C 6722

Patent

active

050323300

ABSTRACT:
A method of manufacturing footwear and the footwear wherein the footwear is manufactured by providing a mold having a mold cavity, placing a sole member in the bottom of the mold cavity, placing a foamable material over the sole member within the mold cavity, providing a last having shoe upper means thereon, positioning the shoe upper means against the mold cavity to form an enclosed space therein formed by the shoe upper means and the sole member and foaming the foamable material within the enclosed space. The footwear comprises upper means and a sole member secured to the upper means, the sole member comprising a prevulcanized sole portion extending to and engaging the upper means to form a spew-proof cavity therebetween and a foamed material filling the cavity.

REFERENCES:
patent: 3474496 (1969-10-01), Klee
patent: 3758903 (1973-09-01), Auberry et al.
patent: 4302416 (1981-11-01), Rudolf et al.
patent: 4543222 (1985-09-01), Ehrlich
patent: 4562606 (1986-01-01), Folschweiler
patent: 4854841 (1989-08-01), Graf et al.

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