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1. (WO2018089504) STITCHLESS BULK BAG WITH HEAT FUSED SEAMS AND METHOD OF PRODUCTION

Pub. No.:    WO/2018/089504    International Application No.:    PCT/US2017/060652
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Thu Nov 09 00:59:59 CET 2017
IPC: B65D 33/00
B32B 37/00
B29C 65/02
B29C 65/38
B29C 65/00
B31B 50/64
B65D 30/08
B65B 51/10
Applicants: AMERIGLOBE, LLC
Inventors: DUNLAP, Clifford
SCHNAARS, SR., Daniel, R.
VIATOR, Brody, Alan
SCHNAARS, JR., Daniel
Title: STITCHLESS BULK BAG WITH HEAT FUSED SEAMS AND METHOD OF PRODUCTION
Abstract:
A stitchless highly oriented polypropylene fabric bulk bag of the type that can hold 500 to 5000 pounds (226.7 to 2268 kilograms) of bulk material includes a highly oriented polypropylene fabric top, body and bottom, with a heat fused joint providing an air tight connection between the top and body, and another air tight heat fused joint connecting the body and bottom. A fill spout and discharge tube may also be provided with an air tight heat fused joint connecting the fill spout to the top and another air tight heat fused joint connecting the discharge spout to the bottom. Heat sealing machinery include heat seal bar assemblies that can self-align during heat-sealing to apply even pressure to all areas being heat sealed. A heating element is of single piece construction and can include end coupler portions as part of the single piece construction. Carrier plates used in a heat-sealing assembly line guide parts placement, provide quality checks for parts placement, and tooling set-up for machinery..