Method for producing a mattress having embedded springs, the imp

Details Method for producing a mattress having embedded springs, the imp Method for producing a mattress having embedded springs, the imp

1976-01-21

1979-05-15

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

5477, 249 64, 264 465, 264 467, 264 469, 425817R, B29D 2704

Patent

active

041547861

ABSTRACT:
A foam-producing mixture is poured directly into a mold, whose base is constituted by an inner movable wall and outer stationary wall which is provided with supports passing through holes in the inner wall in order to retain mattress springs by the frustums of cones. The springs also bear against an upper wall of the mold and are held solely by the forces of cohesion of the solidified foam.

REFERENCES:
patent: 3099518 (1963-07-01), Wetzler
patent: 3204016 (1965-08-01), Sanger et al.
patent: 3453350 (1969-07-01), Koechlin
patent: 3480203 (1969-11-01), Moritz et al.
patent: 3624190 (1971-11-01), Cekada et al.
patent: 3920609 (1975-11-01), Lehmann
patent: 4116735 (1978-09-01), Plasse

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