초록 ▼

A substantially flat collapsed plastic bag with an evacuation form unit insert positioned therein as manufactured to serve as a form about which the filled bag will collapse as it is emptied. The form unit comprises a ring for mounting the unit on the spout of the bag and a multichannel form extendi

A substantially flat collapsed plastic bag with an evacuation form unit insert positioned therein as manufactured to serve as a form about which the filled bag will collapse as it is emptied. The form unit comprises a ring for mounting the unit on the spout of the bag and a multichannel form extending radially from the ring and hingedly connected thereto. A simple method is provided for manufacturing the bag with the form unit insert.

대표청구항 ▼

A substantially flat collapsed bag with a form insert unit disposed therein, said bag comprising opposed superimposed substantially flat walls having a spout extending outwardly from one of the walls adjacent an end of the bag and having an open inner end, said form insert unit comprising an elongat

A substantially flat collapsed bag with a form insert unit disposed therein, said bag comprising opposed superimposed substantially flat walls having a spout extending outwardly from one of the walls adjacent an end of the bag and having an open inner end, said form insert unit comprising an elongated form connected to the spout and being of channel shape to direct the bag contents thereto when the filled bag is evacuated and collapses therearound, said form unit also including a connecting ring which connects with the spout and which has the elongated channel form flexibly attached thereto, said connecting ring fitting into the inner end of the spout and having a portion projecting axially inwardly therefrom, said axially projecting portion of the connecting ring and the elongated channel form being of substantially the same thickness.