Vacuum molder

A vacuum molding apparatus of simplified construction utilizing a vacuum cleaner as a vacuum source. The molding apparatus includes a tray with upstanding side walls having upper outturned flanges for mounting a pair of horizontally positioned holder frames which clamp a sheet of thermoplastic mater...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ANDRAE, RALPH N
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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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