Device for the manufacture of a composite part

Details Device for the manufacture of a composite part Device for the manufacture of a composite part

1988-06-06

1991-08-13

Heitbrink, Timothy

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

425562, 425566, B29C 4523

Patent

active

050392930

ABSTRACT:
The present invention relates to a process and a device for the production of a composite part by the sequential introduction of several fillings (consisting of at least one free-flowing reaction mixture, of which at least one forms a foamed material) into the hollow space of the mold of a closed form tool. A mixing device is attached to form tool. The mixer comprises injector nozzles for the reaction components pointing into a mixing chamber and an ejector piston for the cleaning of the mixer chamber. The ejector piston may be slid forward right up to the outlet orifice of the mixing chamber.

REFERENCES:
patent: 3954926 (1976-05-01), Pahl et al.
patent: 4013391 (1977-03-01), Boden et al.
patent: 4188356 (1980-02-01), Weber et al.
patent: 4314955 (1982-02-01), Boden et al.

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