Method of producing frame-installed seat pad structure

Details Method of producing frame-installed seat pad structure Method of producing frame-installed seat pad structure

1990-03-28

1991-12-03

Spear, Frank

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 467, 2642711, 264278, B29C 6722

Patent

active

050698389

ABSTRACT:
A method of producing a frame-installed seat pad structure, which includes by steps (a) preparing a mold assembly which includes a mold and a lid, the lid having a foamable material feeding tube connected thereto; (b) preparing an endless elongate member which defines therein and therealong a continuous way, the endless elongate member having an inlet portion matable with the feeding tube of the lid and a plulality of outlet portions; (c) detachably connecting the endless elongate member to the lid having the inlet portion thereof mated with material feeding tube; (d) putting the lid on the mold having the endless elongate member exposed to a cavity of the mold; (e) pouring a foamable plastic material into the material feeding tube, so that the material flows in and along the continuous way and falls into the cavity through the outlet portions; (f) curing the material; and (g) removing the lid from the mold when the material is hardened to a certain degree.

REFERENCES:
patent: 3520008 (1970-07-01), Frieder et al.
patent: 4240999 (1980-12-01), Decker, Jr.

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