Plastic bag handle construction

Claim 1

A plastic bag comprising a front wall and a back wall fabricated from a thermoplastic material, said bag being closed at one end and along its sides and being opened at its other end, said open end being characterized in that a portion of said front wall is folded upon itself at said open end transversely along a fold line defining the upper edge of said open end of said bag and being adhered to the unfolded portion of said front wall to form a first reinforcing flap, and a portion of said back wall is folded upon itself at said open end transversely along a fold line defining the upper edge of said open end of said bag and being adhered to the unfolded portion of said back wall to form a second reinforcing flap, a cut out portion disposed in each of said reinforcing flaps and said front and back walls defining a carrying handle for said bag and a plurality of weld lines on each side of said cut out handle extending over at least a portion of the width of each of said reinforcing flaps, said weld lines nearest the carrying handle extending generally perpendicular to the top and bottom of said bag and said weld lines more remote from said carrying handle being directed obliquely toward the lower corners of said bag.