Apparatus for fabricating foam pads

Details Apparatus for fabricating foam pads Apparatus for fabricating foam pads

1974-06-12

1976-03-09

Shore, R. J.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

264 464, 264 48, 425127, 425134, 425453, 425817R, B29D 2704

Patent

active

039429261

ABSTRACT:
An apparatus for fabricating foam pads having a generally flat inner surface with a depending peripheral edge, the flat inner surface including a dense outer crust. A spring assembly is adapted to be disposed so that the terminal face portions thereof contact the outer crust and with the depending edge of the pad confiningly receiving the spring assembly to prevent lateral displacement therebetween. The apparatus includes an open top mold, and a mold insert which is adapted to be floatingly positioned on the upper surface of the foaming material to level the same while permitting the formation of a dense outer crust thereon. The depending foam edge may then be formed by adding additional foamable material along the periphery of the pad between the border of the mold and mold insert, or by suitably attaching a preformed foam strip therealong.

REFERENCES:
patent: 1451229 (1923-04-01), Loudenslager
patent: 2661496 (1953-12-01), Lubenow
patent: 3005213 (1961-10-01), Brown et al.
patent: 3080613 (1963-03-01), Wall et al.
patent: 3204016 (1965-08-01), Sanger et al.
patent: 3243491 (1966-03-01), Bethe
patent: 3541639 (1970-11-01), Enicks
patent: 3841811 (1974-10-01), Peille

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