Package opening and method therefor
AssigneeNotre Property Investments Limited
InventorJohn Richard James
Life of this patent
Estimating the term…
Abstract
The present invention relates to a package. More particularly but not exclusively it relates to package that is rupturable so as to create an opening in the package, yet the package is resistant to rupture from undue forces from particular directions due to a convex shaped burst region that requires straightening to burst.
Claims20
A package comprising a containment region for contents comprising of a solid and a fluid and defined by at least one piece of plastic film, formed to define four side wall regions extending between a top seam and a burst seam opposite the top seam, where the burst seam;
- a. extend non-parallel the top seam when the package is viewed from the top down;
- b. comprises terminal ends that lie each side of a notional vertical top seam plane in which the top seam lies, where the terminal ends are the parts of the package that are located the furthermost from the notional plane;
- c. is shaped and/or configured to assume a concave, towards the top seam, base of the package;
- d. is formed in an angle extending between the terminal ends at least when the containment region contains said contents;
- and
- e. defines a burst region between the terminal ends at where the package can burst to discharge said solid and a fluid from the package.
A package as claimed in claim 6, wherein the other two side wall regions are generally parallel the notional vertical plane, and/or at said notional plane near the top seam and extend away from said notional plane near the top seam.
A package as claimed in 1, wherein the first mentioned two side wall regions are parallel, or generally parallel, the notional vertical burst seam plane that extends through the burst seam, and/or the first mentioned two side wall regions are at said notional vertical burst seam plane and extend away from said plane in a direction towards the top seam.
A combination package comprising a package within an outer bladder, the package comprising a containment region for contents comprising of a solid and a fluid and defined by at least one piece of plastic film, formed to define four side wall regions extending between a top seam and a burst seam opposite the top seam, the burst seam;
- a. extending non-parallel the top seam when the package is viewed from the top down,
- b. comprising terminal ends that lie each side of a notional vertical top seam plane in which the top seam lies,
- c. shaped and/or configured to assume a concave, towards the top seam, base of the package, and
- d. formed in angle less than 180 degrees between the terminal ends at least when the containment region contains said contents,
- wherein the outer bladder comprises two side walls that extend between an upper end and lower end of the outer bladder, the two side walls connected to each other at the upper end by an upper seam, the top seam is connected to the upper seam and extends in the same direction as the upper seam,
- wherein the burst seam extends between and generally perpendicular to the two side walls, the two side walls contacting the terminal ends of burst seam.
Dependencies are inferred from the claim text.