Gas venting device for foam mold

A gas venting device serves to automatically closing and opening vent holes of a foam mold so that air and reaction product gases are sufficiently exhausted and a foamed product is effectively prevented from extending through the vent holes. The gas venting device includes valves for closing and ope...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	IWASAWA, TOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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