Patent ID: 7308783

Claim:
A method of filling a bag, the method comprising: providing a partially constructed bag suitable to be filled through an opening at its top, the partially constructed bag having a closure strip disposed along its opening, the closure strip comprising a sheet-form substrate having a front face; a loop section carried on the front face of the sheet-form substrate and comprising a discrete band of hook-engageable loops extending along the length of the closure strip; a loop-engageable section of loop-engageable fastener elements extending longitudinally along the length of the closure strip and spaced apart from the loop section; the sheet-form substrate being folded in a frangible region between the loop section and the loop-engageable section, to engage the loops and fastener elements; a first side of the closure strip being permanently joined to an inside surface of a first of two opposed walls of the partially constructed bag at the opening, in a joint region, the frangible region of the closure strip being disposed inboard of the opening; holding the partially constructed bag open to define a fill path extending past a second side of the closure strip between the closure strip and a second of the two opposed walls of the partially constructed bag; pouring contents into the open partially constructed bag through the fill path; and heat sealing said second side of the closure strip to the second of the opposed walls of the partially constructed bag, wherein the loop section of the closure strip overlaps a region in which the second side of the closure strip is heat sealed to the second opposed wall to prevent the first and second sides of the closure strip from being sealed together.