Patent ID: 11858691
Assignee: AMERIGLOBE, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B  A  D  Y | IPC A  B  D

Claim 10:
11. A method of forming a flexible plastic fabric bulk bag, comprising the steps of:
a) providing a folded first bag portion having a first pair of opposing gussets and a first open end;
b) providing a folded second bag portion having a second pair of opposing gussets and a second open end;
c) overlapping the first and second open ends to form an overlapped area and put at least some interior surfaces of the folded first bag portion in contact with at least some exterior surfaces of the folded second bag portion, and wherein in the overlapped area some exterior surfaces of the folded first bag portion are in contact with one another;
d) applying heat and pressure to the overlapped area to form a heat sealed bag joint between the interior surfaces of the folded first bag portion and the exterior surfaces of the folded second bag portion that are in contact; and
e) wherein the bag joint is not formed between at least a substantial portion of the exterior surfaces of the folded first bag portion that were in contact with each other in the overlapped area when exposed to the heat and pressure at step (d) and the bag joint is not formed between at least a substantial portion of surfaces of the folded second bag portion that were in contact with each other when exposed to heat and pressure at step (d) so that the bulk bag can expand to an open configuration after the bag joint is formed.