US 4,830,270 AGranted

Mailing and shipping carton

AssigneeProfessional Packaging Limited

InventorGordon W. Holmes

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Abstract

A mailing and shipping container is described which is of rigid construction and simple design and which, once closed, resists opening without destroying the integrity of the structure. The container comprises a tubular sleeve generally of rectangular cross section and end closures at the ends. The end closures comprise overlying panels which have interacting tabs and slots and means for preventing the tabs from being withdrawn from the respective slots after insertion therein.

Claims6

Dependent claims

A mailing and shipping container, comprising:

a tubular sleeve of generally rectangular cross-section and having two ends and an opening at each end and two end closures for closing each of the ends of the tubular sleeve to define with said sleeve an interior of said container and to prevent opening of the container to gain access to the interior thereof without destroying the integrity of the container,
each end closure comprising overlying panels each of substantially the same dimension as the respective end opening of said tubular sleeves, one longitudinal edge of one of said overlying panels of each end closure being hingedly joined to one longitudinal edge of the respective end opening of said sleeve and said one panel of each end closure has tab means hingedly joined to another longitudinal edge thereof, one longitudinal edge of another of said overlying panels of each end closure being hingedly joined to another longitudinal edge of the respective end opening of said sleeve and said another panel of each end closure has tab-receiving slot means formed therethrough adjacent its hinged joint at said one longitudinal edge thereof for receiving said tab means therein,
said tab means comprising a first tab portion hingedly joined to each said one panel and having longitudinal ends and a second tab portion hingedly joined to each said longitudinal end of said first tab portion by hinge lines, said slot means comprising a first elongate portion parallel to the hinged joint at said one longitudinal edge thereof and having longitudinal ends and a length substantially that of the first tab portion and a second portion extending from each said longitudinal end of said first elongate portion at an angle thereto for a distance slightly less than the longitudinal dimension of said second tab portions, and
means located in the interior of said container for deflecting said second tab portions out of alignment with said second portions of said slot means after said second tab portions have passed through said second slot portions upon formation of said end closures.

1 more element

Dependencies are inferred from the claim text.

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Abstract

A mailing and shipping container, comprising:

a tubular sleeve of generally rectangular cross-section and having two ends and an opening at each end and two end closures for closing each of the ends of the tubular sleeve to define with said sleeve an interior of said container and to prevent opening of the container to gain access to the interior thereof without destroying the integrity of the container,
each end closure comprising overlying panels each of substantially the same dimension as the respective end opening of said tubular sleeves, one longitudinal edge of one of said overlying panels of each end closure being hingedly joined to one longitudinal edge of the respective end opening of said sleeve and said one panel of each end closure has tab means hingedly joined to another longitudinal edge thereof, one longitudinal edge of another of said overlying panels of each end closure being hingedly joined to another longitudinal edge of the respective end opening of said sleeve and said another panel of each end closure has tab-receiving slot means formed therethrough adjacent its hinged joint at said one longitudinal edge thereof for receiving said tab means therein,
said tab means comprising a first tab portion hingedly joined to each said one panel and having longitudinal ends and a second tab portion hingedly joined to each said longitudinal end of said first tab portion by hinge lines, said slot means comprising a first elongate portion parallel to the hinged joint at said one longitudinal edge thereof and having longitudinal ends and a length substantially that of the first tab portion and a second portion extending from each said longitudinal end of said first elongate portion at an angle thereto for a distance slightly less than the longitudinal dimension of said second tab portions, and
means located in the interior of said container for deflecting said second tab portions out of alignment with said second portions of said slot means after said second tab portions have passed through said second slot portions upon formation of said end closures.

1 more element