초록 ▼

A carton formed from a carton blank so that the carton has an outer layer formed from a relatively rigid material and an inner layer formed from a relatively flexible fluid impervious material. The outer layer and the inner layer have superposed weakened portions secured together so that the carton

A carton formed from a carton blank so that the carton has an outer layer formed from a relatively rigid material and an inner layer formed from a relatively flexible fluid impervious material. The outer layer and the inner layer have superposed weakened portions secured together so that the carton may be opened along the superposed weakened portions in one simultaneous operation. Also, in another embodiment, a similar carton is provided with a pour spout.

대표청구항 ▼

[ What is claimed is:] [1.] A carton blank comprising:a unitary sheet of a relatively rigid material;said unitary sheet of a relatively rigid material having a plurality of cut and fold lines for dividing said unitary sheet of a relatively rigid material into conventional panel portions having at le

[ What is claimed is:] [1.] A carton blank comprising:a unitary sheet of a relatively rigid material;said unitary sheet of a relatively rigid material having a plurality of cut and fold lines for dividing said unitary sheet of a relatively rigid material into conventional panel portions having at least a central body portion having at least three panel portions joined by two fold lines;a generally rectangular sheet of a relatively flexible fluid impervious material having at least a central body portion;at least portions of said at least a central body portion of said rectangular sheet being secured to said at least a central body portion of said unitary sheet;continuous linearly extending weakened portions formed in said at least three panel portions of said unitary sheet;at least a portion of said generally rectangular sheet being weakened along a line opposite to said continuous linearly extending weakened portions;a continuous coating of adhesive securing together the portions of said at least a central body portion of said unitary sheet and said at least a central body portion of said generally rectangular sheet along and adjacent to said weakened portions; andsaid continuous coating of adhesive cooperating with said at least a portion of said generally rectangular sheet to preserve the integrity of said generally rectangular sheet but to permit the simultaneously separation thereof with said unitary sheet.