US2018155116A1PendingUtilityA1
Container having improved strength
Est. expiryMay 27, 2035(~8.8 yrs left)· nominal 20-yr term from priority
B65D 85/1045B65D 5/4266B65D 85/10484B65D 5/662A24F 15/18B65D 85/1048
34
PatentIndex Score
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Cited by
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Claims
Abstract
A container for consumer articles is at least partially formed from a laminar blank having an inner surface and an outer surface, and a thickness (T) of from about 100 micrometers to about 350 micrometers. The laminar blank defines a portion of the container that comprises a first planar wall and a second planar wall connected to one another by a first edge portion. The inner surface of the first edge portion comprises one or more ablated lines extending substantially in the longitudinal direction of the first edge portion, each of which is provided as a groove within the blank, having a minimum residual thickness (RT) of from about 15 percent to about 40 percent of the thickness (T) of the laminar blank, and an ablated width (X) as measured transversely to the longitudinal direction of the first edge portion. The laminar blank is folded about the one or more ablated lines such that, for each ablated line, the angle (a) between the outer surface of a first planar portion of the blank adjacent to one side of the ablated line and the outer surface of second planar portion of the blank adjacent to the other side of said ablated line, is within 5 degrees of:
Claims
exact text as granted — not AI-modified1 . A container for consumer articles, the container being at least partially formed from a laminar blank having an inner surface and an outer surface, and a thickness (T) of from about 100 micrometres to about 350 micrometres, the laminar blank defining a portion of the container that comprises:
a first planar wall; and a second planar wall connected to the first planar wall by a first edge portion, wherein the inner surface of the first edge portion comprises one or more ablated lines extending substantially in the longitudinal direction of the first edge portion, wherein each of the one or more ablated lines is provided as a groove within the blank, having a minimum residual thickness (RT) of from about 15 percent to about 40 percent of the thickness (T) of the laminar blank, and an ablated width (X) as measured transversely to the longitudinal direction of the first edge portion, wherein the laminar blank is folded about the one or more ablated lines of the first edge portion such that, for each ablated line, the angle (α) between the outer surface of a first planar portion of the blank adjacent to one side of the ablated line and the outer surface of second planar portion of the blank adjacent to the other side of said ablated line, is within 5 degrees of:
2
tan
-
1
(
X
2
(
T
-
RT
)
)
2 . A container according to claim 1 , wherein the angle (α) is at least:
2
tan
-
1
(
X
2
(
T
-
RT
)
)
3 . A container according to claim 1 , wherein each of the one or more ablated lines is formed as a substantially V-shaped groove within the blank.
4 . A container according to claim 1 , wherein each of the one or more ablated lines has a minimum residual thickness (RT) of at least about 20 percent of the thickness (T) of the laminar blank.
5 . A container according to claim 1 , wherein the first edge portion comprises five or less of said ablated lines at any given longitudinal position on its inner surface.
6 . A container according to claim 1 , wherein the one or more ablated lines extend in parallel in the longitudinal direction of the first edge portion.
7 . A container according to claim 1 , wherein the laminar blank is a cellulose-fiber-based or wood-fiber-based laminar blank.
8 . A container according to claim 1 , wherein the ablated width of each of the one or more ablated lines is between about 0.1 millimetres and about 0.5 millimetres.
9 . A container according to claim 1 , wherein the first planar wall is orthogonal to the second planar wall.
10 . A container according to claim 1 comprising:
a box portion comprising a box portion front wall, a box portion back wall, first and second box portion side walls, and a box portion bottom wall; and
a lid portion depending along a hinge line from a top edge of the box portion, wherein the lid portion is moveable about the hinge line between an open position and a closed position.
11 . A container according to claim 11 , wherein the first planar wall is the box portion front wall, and the second planar wall is the first box portion side walls.
12 . A laminar blank for forming a container for consumer articles, the laminar blank having an inner surface and an outer surface, and a thickness (T) of from about 100 micrometres to about 350 micrometres, the blank comprising:
a first wall panel for forming a first planar wall of the container; and a second wall panel for forming a second planar wall of the container, the second wall panel being connected to the first wall panel by a first edge portion; and
wherein the inner surface of the first edge portion comprises one or more ablated lines extending substantially in the longitudinal direction of the first edge portion,
wherein each of the one or more ablated lines is provided as a groove within the blank, having a minimum residual thickness (RT) of from about 15 percent to about 40 percent of the thickness (T) of the laminar blank, and an ablated width (X) as measured transversely to the longitudinal direction of the first edge portion, and
wherein the laminar blank is configured to be folded about the one or more ablated lines of the first edge portion such that when folded, for each ablated line, the angle (α) between the outer surface of a first planar portion of the blank adjacent to one side of the ablated line and the outer surface of second planar portion of the blank adjacent to the other side of said ablated line, is within 5 degrees of:
2
tan
-
1
(
X
2
(
T
-
RT
)
)
13 . A method of forming a container for consumer articles, the container being at least partially formed from a blank having a thickness (T) of from about 100 micrometres to about 350 micrometres, the method comprising:
providing a laminar blank having a thickness (T), the blank comprising:
a first wall panel for forming a first planar wall of the container; and
a second wall panel for forming a second planar wall of the container, the second wall panel being connected to the first wall panel by a first edge portion;
wherein the inner surface of the first edge portion comprises one or more ablated lines extending substantially in the longitudinal direction of the first edge portion,
wherein each of the one or more ablated lines is provided as a groove within the blank, having a minimum residual thickness (RT) of from about 15 percent to about 40 percent of the thickness (T) of the laminar blank, and an ablated width (X) as measured transversely to the longitudinal direction of the first edge portion; and
folding the first wall panel of the laminar blank relative to the second wall panel, such that, for each ablated line, the angle (α) between the outer surface of a first planar portion of the blank adjacent to one side of the ablated line and the outer surface of second planar portion of the blank adjacent to the other side of said ablated line, is within 5 degrees of:
2
tan
-
1
(
X
2
(
T
-
RT
)
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