Patent ID: 7503885

Claim:
A method of making a flexible storage tank having rounded corners, the method comprising: providing a plurality of top panels; providing a plurality of bottom panels; providing a right side panel and a left side panel; providing a plurality of generally triangular panels, the plurality of triangular panels each having three edges; bonding the top panels to each other; bonding the bottom panels to each other; bonding the right side panel to one of the top panels and one of the bottom panels, and bonding the left side panel to one of the top panels and one of the bottom panels to provide a tube; boding ends of the top panels with ends of the bottom panels; and bonding one of the three edges of each of the triangular panels with an end of one of the top panels, a second one of the three edges of each of the triangular panels with an end of one of the bottom panels, and a third of the three edges with an end of one of the side panels.