Method for making multi-layer molded padded products

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article

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Details

264257, 264292, 264324, 264325, B29D 900

Patent

active

040804160

ABSTRACT:
A apparatus and method for making multiple layer molded padded products comprising at least three layers, the intermediate layer comprising padding. All of the layers are formed on male molds which are cast from a single master mold, thereby reducing mold costs and assuring perfect matching of the layers. The entire area of the female mold on which the intermediate layer of padding is formed is either completely cut away or is spaced away from the male mold so that the thickness of the pad is not substantially reduced during the molding operation. The female mold is heated and acts as an oven to draw back compressed fiberfill padding and/or to cure polyurethane foam padding.

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patent: 2924852 (1960-02-01), Michalko
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patent: 2983955 (1961-05-01), Gajdosik
patent: 3164655 (1965-01-01), Howard
patent: 3461504 (1969-08-01), Becker
patent: 3516122 (1970-07-01), Schwartz
patent: 3799174 (1974-03-01), Howard

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