Patent ID: 8915372

Claim:
A self-opening bag pack comprising: a plurality of stacked film bags, each of said bags having front and rear walls, each of said front and rear walls having first and second side edges, a top edge and a bottom edge; said front and rear walls being integrally joined at their first and second side edges and secured together at their bottom edges and defining an open mouth portion adjacent said top edges; at least an upper portion of an outer surface of said front and rear walls of each of said bags having been corona treated; at least one elongated, linear knife cut, said knife cut extending completely through said front and rear walls of each of said bags in said bag pack, and having first and second ends and first and second edges; said first and second edges being spaced apart by a predetermined distance; film material adjacent said knife cut adhering said rear wall of a prior bag to said front wall of a subsequent bag for each bag in said bag pack, thereby providing self-opening features along both of said first and second edges and uniform adhesion between each of said prior and said subsequent bags; each of said bags comprising: longitudinally oriented side gussets; an upper seam, said upper seam sealing said front wall to said rear wall at their respective top edges; and a U-shaped cut-out, said U-shaped cut-out being disposed in an upper portion of said bag and commencing at a first point along said upper seam spaced inwardly from said first side edge and extending to a second point along the upper seam spaced inwardly from said second side edge, said cut-out extending downwardly toward said bottom edges, thereby forming an open mouth portion and a pair of bag handles; first and second openings, said first and second openings penetrating and extending transversely through said bag pack in an upper portion of the bags; said openings being spaced downwardly from said top edge, spaced inwardly from said first and second side edges and serving to support said bag pack on horizontal arms of a dispensing rack; a central tab portion connected to said open mouth portion of said bags in said bag pack; an aperture, said aperture extending transversely through said bag pack within said central tab portion for suspending said bag pack from a dispensing member; a frangible section within said central tab portion; said frangible section extending to at least one outer edge of said central tab portion; said frangible section rupturing upon removal of said bag from said dispensing rack; said at least one knife cut disposed either of below said central tab portion or within said central tab portion and spaced from said frangible section; and wherein said bag pack is attached to said dispensing rack and said first bag is pulled outwardly from said bag pack, said first and second edges of said knife cut in said front wall of said subsequent bag are adhered to said first and second edges of said knife cut in said rear wall of said prior bag, thereby causing said prior bag to open.