Method of making a foam plastic cushion having a peripheral fram

Details Method of making a foam plastic cushion having a peripheral fram Method of making a foam plastic cushion having a peripheral fram

1976-10-01

1978-09-26

Hoag, Willard E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156245, 156285, 264 468, 264 90, 264 92, 264248, 264309, 264316, 264 466, 425388, B29C 1300, B29D 2704

Patent

active

041167368

ABSTRACT:
A method and apparatus are disclosed for preshaping a sheet material, more particularly a textile and/or a plastic sheet, under differential pressure in a molding die, whereby to form a sack-like structure which becomes integrally incorporated as the cover of a foamed plastic cushion, vehicle seat, protective padding element or similar article, by the introduction of a self-foaming elastomeric material into the sack while it is being held in the molding die.

REFERENCES:
patent: 1649734 (1927-11-01), Roberts et al.
patent: 2760562 (1956-08-01), Fisher
patent: 3008859 (1961-11-01), Smack
patent: 3258511 (1966-06-01), McGregor
patent: 3360273 (1967-12-01), Hundt et al.
patent: 3608055 (1971-09-01), Long
patent: 3755040 (1973-08-01), Robinson
patent: 3932252 (1976-01-01), Woods
patent: 3971112 (1976-07-01), Amato et al.
Dombrow, Polyurethanes, Reinhold (1965), pp. 135, 154 & 155.

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