Process for the production of cushions made of foam which are pr

Details Process for the production of cushions made of foam which are pr Process for the production of cushions made of foam which are pr

1988-12-01

1990-01-23

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 468, 264511, B29C 6722, B29C 5110

Patent

active

048956864

ABSTRACT:
A process for the production of foam cushions having textile covers by inserting a textile cover into a mold cavity having gates which project into the mold cavity, initially preforming the textile cover by applying a vacuum through holes in the mold cavity such that the textile cover conforms to the contour on both sides of the gates, clamping the textile cover against the gates, optionally further positioning the textile cover such that it conforms to the contours of both the gates and the mold cavity, releasing the clamps and introducing a foam-forming reaction mixture into the mold cavity. The present invention is also directed to a form tool having gates, means for applying a vacuum through holes in the mold cavity in gates and clamping means for clamping the mold cover to the gates.

REFERENCES:
patent: 3377103 (1968-04-01), Borton et al.
patent: 4115170 (1978-09-01), Sanson
patent: 4323406 (1982-04-01), Morello
patent: 4780263 (1988-10-01), Atkin et al.

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