Expansible carton

Claim 2

A carton adapted for triple expansion, said carton comprising; front and rear walls, formed by first and second panels, respectively; one side wall formed by a third panel interconnecting said first and second panels, and providing a pair of mutually-overlying contiguous pleats normally disposed perpendicular to said first and second panels for triple expansibility; and three additional walls, being an opposite side wall and two opposite end walls, said additional walls being formed by a plurality of flaps each projecting from one of said first and second panels, at least two of said additional walls each being provided with a pair of mutually-overlying contiguous pleats normally disposed perpendicular to said first and second panels for triple expansibility; said panels and said flaps being secured in respective positions for forming said walls and being form retaining in normal and expanded positions thereof.

Claim 3

A carton in accordance with claim 1, said side wall and said additional triply expansible walls each being folded along a pair of parallel-expanding score lines into the respective pair of pleats.

Claim 4

A carton in accordance with claim 1, each pair of pleats extending for the full length of the respective triply expansible wall.

Claim 5

A carton in accordance with claim 1, said one side wall consisting of the respective pair of pleats.

Claim 6

A carton in accordance with claim 1, a pair of said flaps being secured together to form each of said additional walls.

Claim 7

A carton in accordance with claiM 1, one of said additional walls being openable.

Claim 8

A carton in accordance with claim 1, wherein a plurality of tabs project from said walls, said tabs being secured in positions for preventing unfolding of at least one of said pairs of pleats.

Claim 9

A carton in accordance with claim 1, wherein a suspension hook for said carton is secured to one of said walls.

Claim 10

A carton in accordance with claim 1, wherein one of said front and rear walls is provided with a plurality of elongate apertures adapted to receive a suspension strap for said carton.

Claim 11

A carton in accordance with claim 1, wherein said panels and said flaps are secured by adhesive material in said wall-forming positions.

Claim 12

A blank foldable into a carton adapted for triple expansion, said blank comprising first and second rectangular panels of substantially the same size, a third rectangular panel interconnecting adjacent side edges of said first and second panels, a pair of score lines on said third panel spaced inwardly of and parallel to said adjacent side edges, said third panel being connected to said first and second panels with score lines, one of said panels having a rectangular first flap connected to its other side edge with a score line, said first flap having a pair of score lines spaced outwardly of said other side edge and being parallel thereto, the another of said panels having a rectangular second flap connected to its other side edge with a score line, said second flap being narrower than said first flap, one of said panels having a rectangular third flap connected to one end edge with a score line, said third flap having a pair of score lines spaced outwardly from said end edge and being parallel thereto, another of said panels having a rectangular fourth flap connected to a corresponding end edge with a score line with said fourth flap being narrower than said third flap, and the other end edge of at least one of said panels having a fifth flap connected thereto with a score line.

Claim 13

A blank foldable into a carton adapted for triple expansion, said blank comprising first and second rectangular panels of substantially the same size, a third rectangular panel interconnecting adjacent side edges of said first and second panels, a pair of score lines on said third panel spaced inwardly of and parallel to said adjacent side edges, said third panel being connected to said first and second panels with score lines, one of said panels having a rectangular first flap connected to its other side edge with a score line, said first flap having a pair of score lines spaced outwardly of said other side edge and being parallel thereto, the another of said panels having a rectangular second flap connected to its other side edge with a score line, said second flap being narrower than said first flap, one of said panels having a rectangular third flap connected to one end edge with a score line, said third flap having a pair of score lines spaced outwardly from said end edge and being parallel thereto, another of said panels having a rectangular fourth flap connected to a corresponding end edge with a score line with said fourth flap being narrower than said third flap, and the other end edge of at least one of said panels having a fifth flap connected thereto with a score line.

Claim 14

A blank in accordance with claim 11 in which the width of said third panel is substantially equal to the width of said first flap.

Claim 15

A blank in accordance with claim 12 in which the length of said third flap is substantially equal to the width of said first flap.

Claim 16

A blank as set forth in claim 12, in which the width of said second flap is substantially the same width as the spacing between score lines on said first flap.

Claim 17

A blank in accordance with claim 11 in which said second flap is provided with tabs on the ends thereof and said third panel has end tabs extending from the portion thereof intermediate said interconnecting score line and the adjacent third panel score line.