Carton end closure

Claim 1

In a carton end closure for a rectangular carton body comprising a first major panel 20, a second panel 16, a first side panel 14, a second side panel 18 and a closed bottom and fabricated from a carton blank 10 for containing a powdered or granular material 60, wherein an improvement provides sift proof sealing without an inner liner and comprises: A. a first major side flap 40 hingedly connected to the first side panel 14 inwardly folded; B. a second rectangular minor side flap 42 hingedly connected at a first end to the second side panel 18 inwardly folded, said second minor flap 42 having, an opposed major free edge 99 at its second end, an opposed pair of minor free edges 105 and 107 perpendicular to the major free edge, a topical exterior coating capable of delamination, a transverse score line 98 through the topical exterior coating intermediate the first and second ends, and at least one score line 102 running from the first end to the transverse score line 98; C. a first rectangular major end flap 46 overlaying the first and second minor side flaps hingedly connected at a first end to the first major panel 20, said major end flap having a longitudinally extending major free edge 82 at its second end, first and second spaced apart parallel minor free edges 83 and 96 perpendicular to the major free edge, exterior and interior major surfaces, a transverse perforation line 66 intermediate and parallel to the first and second minor edges thereby defining a spout flap portion 64 and a fixed portion 62, said spout flap portion 64 having an inverted "C" style tuck tab slit cut 74, said spout flap portion 64 having a notch 84 on the first minor free edge and having a finger hole 75 on its major free edge positioned equidistantly between the notch 84 and the transverse perforation line 66, a first transverse adhesive means 94 for removably adhering the first major end flap to the underlying first minor side flap, and a second transverse adhesive means 88 for removably adhering the first major end flap to the underlying second minor side flap; and D. a second rectangular major end flap 44 inwardly folded overlaying the first major end flap 46 hingedly connected at a first end to the second major panel 16, said second major end flap having an opposed, longitudinally extending major free edge 114 at its second end, first and second spaced apart parallel minor free edges 110 and 128 perpendicular to the major free edge exterior and interior major surfaces, and a transverse perforation line 72 intermediate and parallel to the first and second minor free edges and overlaying the transverse perforation line 66 of the first major end flap defining a spout flap portion 70 and a fixed portion 68, a longitudinally extending pull tab 138 defined by a plurality of pull tab perforations 116 commencing at the first minor free edge 110 and extending to the transverse perforation line 72 and wherein the pull tab perforations 116 include a plurality of tuck tab defining perforations 118, a first transverse adhesive means 108 for removably adhering the second major end flap 44 to the underlying second minor side flap 42 on the spout flap portion proximate the first minor free edge 110 and extending from the pull tab perforation to the first end, a second transverse adhesive means 124 extending on the fixed portion 68 proximate the transverse perforation line 72, a third transverse adhesive means 126 on the fixed portion 68 proximate the second minor free edge 128, and first and second parallel spaced apart longitudinally extending adhesive means 120 and 122 for removably adhering the second major end flap 44 to the underlying major end flap 46.