Valved containers - from thermoplastic film using heating elements so that film can be advanced continuously during welding

Apparatus for manufacturing containers with retaining valves from thermoplastic film advanced by two endless conveyor belts has cross bars mounted on slides for carrying the heating elements for welding the retaining valves and the containers along their path, the slides being mounted on respective...

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Bibliographische Detailangaben
Hauptverfasser:	N.T. BUDKIN, V.K. AKHMETOV, N.N. SCHEGRINOV, V.M. KOZLOV, A.Z. DANCHENKO, V.A. MOSKVITIN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER PERFORMING OPERATIONS TRANSPORTING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	Apparatus for manufacturing containers with retaining valves from thermoplastic film advanced by two endless conveyor belts has cross bars mounted on slides for carrying the heating elements for welding the retaining valves and the containers along their path, the slides being mounted on respective carriages which can execute an alternating rectilinear movement along the film advanced in the apparatus. The heating elements are mounted so that the film can be advanced continuously during welding. High quality containers are obtd. at a high rate.