Patent ID: 8690428

Claim:
A bag comprising: two juxtaposed face panels of plastic film and each having two generally parallel side edges and top and bottom edges bridging the side edges; a first gusset extending between one of the side edges of one of the panels and the juxtaposed side edge of the other of the panels, the first gusset being movable between a folded-in condition lying mainly between the panels and an extended condition projecting laterally past the panels and forming a spout generally at the top edges; a slide fastener at the top edges and having two profile strips that can be locked to each other and that each have an attachment flap, and a slider shiftable along the profile strips in a closing direction to close the strips together and in an opposite opening direction to separate the strips; joints securing the attachment flaps directly only to inner faces of the respective face panels at the respective top edges; a second inextensible gusset extending between the other side edges of the face panels opposite the first gusset and ending at a spacing from the top edges; a separate film sheet covering an upper end of the second inextensible gusset inside the bag; and a weld at an upper end of the inextensible second gusset and extending from the respective side edges diagonally toward the top edges, the top edges of the face panels connecting the face panels to the second inextensible gusset or connecting the face panels to each other.