PAPER MILK-BOTTLE Patented Nov. 16, 1915. 

JOHN R. VAN WoRMER, a citizen of the USA and resident of Toledo, Lucas county, Ohio, has invented a specific new and useful Improvement in Paper Milk-Bottles. 

The invention relates to manufacturing containers generally, but more particularly to milk bottles made from paper. A particular object of the invention is to provide a construction that facilitates the efficient manufacture of milk bottles using traditional methods.

A bottle with a quick-sealing lid is another objective of this invention. The top and bottom flaps on the cover will keep liquid from seeping out as it does on other bottles.

A paper bottle including a rectangular body including flat sides, a flat bottom, and a top wall equipped with a round hole forming the mouth of the bottle, the stated top having increased section of which said hole is the center, said area being externally convex and interior concave.

Whereby stated hole may act as a round pouring opening for bottle and top including corner portions disposed of in a horizontal plane crossing the outer and lower circular edge section, the top and bottom being each formed of three layers of sheet material, each layer being integral with the sides and coextensive with the area of the top or bottom, and the uppermost layer of the top being of one piece to deliver an unbroken outer surface and edge around said hole.

CLOSURE FOR MILK BOTTLES Patented July 2, 1929.

‘Farmers w. ennussn, or SALEM, onneon.

1. A closure for milk bottles consisting of a sheet of metal foil, in combination with a relatively rigid disk cap outside of said adapted to draw a portion of said foil into the recess of the bottleneck.

2. A closure for milk bottles consisting of a paper disk forced into the recess of the mouth of a milk bottle; and a sheet of foil under said cap whose sides project beyond said cap and its projecting portion bends downwardly in close contact with the outer side of the bottleneck.

3. A closure for milk bottles consisting of a foil cap for the top and sides of a milk bottleneck, the top of which cap extends downwardly into the bottle mouth recess, and the surrounding portion of said foil cap forms close contact with the exterior of the bottle in a manner to exclude all air from between the foil and. glass, and a rigid disk member forced into the bottleneck recess above said oil.

Paper milk bottle, Patented Oct. 11, 1938,

UNITED STATES PATENT oF Christopher Hamilton Berry, Toronto, Ontario, Canada 

 This invention relates to a milk bottle or container formed of fibrous material, such as paper, substantially corresponding in shape and size to the standard milk bottle. An object of the invention is to produce a bottle that is light in weight, durable and rigid, and applicable to filling and capping by any of the standard bottle filling and capping machines.

A further object is to produce a paper bottle that may be semi-transparent and leakproof by being completely coated, either before or after formation, with suitable composition, such as paraffin or the like.

An additional and novel feature is to form from a single sheet of fibrous material, such as paper, a liquid container into the shape and formation of a standard milk bottle that will resist crushing and damage when being filled and will not bulge or lose its regular shape after standing for lengthy periods with liquid contents.

The bottle is formed from a single sheet of fibrous material, such as paper of suitable weight and thickness, notched along one edge; to create a series of ears adapted to be folded.

A bottle of the character described, a sheet of fibrous material having one of its edges notched to form a series of folding ears, the said sheet being formed and cemented into tubular formation, the upper portion of the said tubular member being converged by a series of graduated radial crimps to include a neck and mouth in addition to that, the said ears being folded over at right angles into radial relation to form a shoulder and the said being further folded over at right angles to the said shoulder to form a radial flange and mouth with said neck, and a U- shaped binding ring engaging over the said radial flange, a closure fitted in the opposite end of the said tubular member forming a bottom in addition to that. 

SANITARY MILK CARTON Patented June 30, 1953,

UNITED STATES PATENT OFFICE SANITARY MILK CARTON Oscar Komeo, Linden, Mich.

The present invention relates to specific new and useful improvements in sheet material commodity cartons. It has more particular reference to a cardboard paraffin-coated container which is mainly, but not necessarily, adapted to function as a sanitary throw-away milk carton.

It is a matter of common knowledge that throwaway milk cartons are of many styles and forms. As a general rule, milk cartons are constructed from cardboard or the like and are interiorly and exteriorly coated to render the same leak-proof and stable, with paraffin and analogous wax coatings. Cartons commonly in use are vertically elongated, rectangular in cross-section, and have fiat upper and lower ends. The upper end usually forms a pouring hole associated with a pull-type closing tab.

It is an object of the present invention to structurally, functionally, and otherwise improve upon prior art carton construction and, in so doing, to provide one in which manufacturers and users will find their essential requirements and need fully met, contained, and satisfactorily available.

More specifically, novelty is predicated on a carton whose bottom is strong and durable and is characterized by a plurality of overlapping folds or sections, which, when united, define a solid and reliable leak-proof base. The entire carton is coated with paraffin or a suitable grade of wax, as is commonly done in this line of endeavor. The paraffin combines and seals the folded portions together in a liquid-tight relationship.

Container for liquids and granular materials in an essentially parallelepipedal formed folded box made from cardboard, especially multi-layer composite cardboard-plastic material, Inventor – Jürgen Färber, SIG Combibloc GmbH and Co KG

The invention relates to a container for liquids and bulk goods in the form of a substantially rectangular folding box made of cardboard, in particular a multi-layer composite cardboard plastic material, with a head portion that is tapered in cross-section to form closed triangular folding pockets and which has the shape of a funnel with a central opening which is equipped with an annular molded part. In such a container, the annular molded portion engages around the upper edge of the central opening on both sides. It serves as a reinforcement of the edge and as an adapter for attachable lid closure. In the tapered head part, two triangular folding pockets are assigned to each fold line of the four parallel container edges, extending into the container’s head part. These folding pockets lie on the outside of the head part so that there is an essentially stepless rounding of the central opening on the inside. Such a container is not designed because of the bowl-shaped lid and is intended to be closed again after removing a small amount of the contents; it is possible to empty another container made of a multilayer cardboard plastic material. In this container, the head part is funnel-shaped and comprises a spout inserted into the funnel-shaped part. The funnel-shaped head part is formed by several cut-out triangular fields of the cardboard blank, the adjacent edges connected via sealing seams (EP 0 223 094 A2). The disadvantage of containers is that the funnel-shaped head part cannot be made waste-free because of the cut-out triangular fields.

The invention has its object to provide a container for liquids and bulk goods in the form of a folding box of the type mentioned for equipping with a spout, which is not only easy to manufacture but also gives the spout good protection against rotation.

Teknos develops an innovative bio-based barrier for recyclable paper bottle