US2110843A

US2110843A - Destructible oil container

Info

Publication number: US2110843A
Application number: US94776A
Authority: US
Inventors: Schmidt David
Original assignee: Dobeckmun Co
Current assignee: Dobeckmun Co
Priority date: 1936-08-07
Filing date: 1936-08-07
Publication date: 1938-03-08
Anticipated expiration: 1955-03-08

Description

March 8, 1938. D. SCHMIDT DESTRUCTIBLE OILA CONTAINER Filed Aug. 7, 193e ATTO RN EY Patented Mar. 8, 1938 yUNITED STATES 2,110,843 nEs'rnUcTmLE on. CONTAINER David Schmidt, Lalxewood, Ohio, assignor to The Dobeckmun Company, Cleveland, Ohio, a corporation of Ohio PATENT oFFlcE Application August 7, 1936, Serial No. 94,776 3 Claims, l(Cl. 229-14) The present invention relates to the manufacture of a container, the body portion of which is made of a paper stock, preferably cardboard,-

10 sale of oil from bulk has been recently supplanted' by the sale of oil from individual cans, so that the customer is assured of receiving standard brands and qualities of oil. 'I'his practice has given rise to a number of objectionable features, a major tainers. The cans which are usually of tin, are not easily destructible, and the disposition of them is an expensive and troublesome operation. In addition, the oil tends to cling to the metal sur-` 20 faces of the can and it is necessary that the manufacturer place an additional quantity of oil in each can to compensate the customer for the oil which clings to the interior of the can.

It has been proposed heretofore, to construct 25 cans from paper stocks, but it has been diiiicult to make an oil tight can due to the very searching property of oil.

It is the purpose of the present invention to design and construct a can of this type which will be 30 leak and seep proof, and the present inventor has perfected such a container by the means slown and described herein. It will be understood that the illustration and description is of the best known or preferred form of the invention, and 35 that modifications and changes may be made retaining the essential and characteristic features of the invention.

In the drawing Fig. 1 is a vertical cross section through the im'- 40 provedcontainer, illustrating the various features A thereof which have made it possible to construct an oil proof container of this type;

Fig. 2 is a view showing the body of the can broken away in the several plies or layers a'nd illustrating the constructional details thereof;

Fig. 3 is an enlarged View at the edge of the can showing the detailed construction whereby the end of the can is fastened to the body; and

Fig. 4 is a detail of the oil proof inner lining.

5o Fig. 5 is an enlarged detail drawing of the overlapping spiral seam.

The container comprises the main or body portion l, which is formed of spirally wound layers or plies of a heavy paper stock, such as cardboard.

strawbard, chipboard. 'or thelike. This is preferably formed of a pluralityI of plica-two plies I' and Ib being illustrated. The plies, whether two or more, are adhesively secured together ani. aid

with the seams out of register. This form of cardboard tubing is old and well known.

The oil resistant properties are secured by an inner lining of an oil proof sheet which is.

indicated by the numeral 2. This is preferably a sheet made from regenerated cellulose sheeting, known by the trade name Ce'llophane, or equivalent material, such, for example, as any. celluloslc or other film which is oil proof. These man E-l-s s U En Nov 11 1941 Iterials which are well known oil resistant substances, have the added advantage that they 15 diiiiculty being the destruction of the empty conreadily "shed oil, so that the amounts previy 'o usly essential to give full measure in the old metallic cans, are reduced with the improved con- It has been proposed heretofore to line a container with Cellophane or similar materials, but the diiliculty has been in securing the proper application and sealing of the inner lining. The present construction secures this result, as will be now set forth.`

The cil proof lining 2 is first secured to an inner paper lining 3 by any of the usual laminating processes suitable and well known for the purpose. The lining2 may be secured to the backing 3 by the well known thermoplastic cements. The edge of the backing 3y is protected by folding the oil proof sheet about the edge of the backing as shown at I in Fig. 4. The paper which is employed is readily adhered to the inner turns of the body during the process o f making. thetube, which is illustrated in Fig. 2.

It will be seen that the reversely folded edge portion 4 overlaps the `adjacent edgeof the next spiral turn and contacts with the oil proof lining on the next adjacent ply so that a seal is made between two surfaces of the lining. This is shown at 5 in Fig. 1 and is also illustrated in Fig. 2. The joint at this point is made by a suitable adhesive which will resist the oil and will securely adhere the opposed surfaces of the Cello. phan or other lining. Such an adhesive may be of the type previously described. A solution of zinc chloride may be employed at this point,

as this material softens the surfaces of the oellulose sheets and causes the two surfaces to unite into an oil proof seal. I

'I'hepaper stock is thinfand iiexible so that'it may be readily wrapped about the usual mandrel' or former. 'I'he showing in Fig. 1 is necessarily vexaggerated for the purpose of adequately illustrating the construction. In fact, the seam is only slightly perceptible.

The lining which has been described, is one of the essential features of the invention whichping is reduced to a minimum. This secures an 4 oilV tight joint at the ends of the can where a relatively thick overlap would give rise to crevices through which the oil could seep.

The end of the container gives a serious problem in the manufacture of a satisfactory oil proof container. In the form shown, the ends are closed by round metal caps or disks 6, the outer peripheries of which are provided with channels I in which the edges of the container are seated. The rim of the disk is turned over to provide the curled edge 18 and this is crimped against the outer Wall. The channel is made somewhat deeper than is customary, and this provides for an additional and supplemental crimp ID about the can. A coating of a suitable lute or filler I2 is applied about the inner wall of the channel as a part of the sealing operation.

In the ordinary can of this type, the center of the cap or disk is usually Within the plane of the edge portion. It has been found that this construction gives rise to leakage due to the heavy character of the contents, as the weight of the oil on the unsupported -central area of the disk causes it to spread at the seal. To obviate this objectionable feature, the cap in the present construction is supported byaextending it flush with or slightly beyond the plane of the lower edge of the can. Such an expedient is shown in ,I Fig. 1 in which the disk is formed with a, circular rib I4, which affords a support for the disk The container shown and described herein forms an oil tight receptacle for the transportation and storage of oil. It solves the problem of providing a can, the body of which may be easily destroyed. It is more economical of oil and is cheaper and better in many ways than the standard tin can which has been used for the purpose.

What is claimed is:

1. A destructible oilproof container comprising a.` body portion formed of spirally Wound heavy paper stock, and an inner oil proof lining composed of a sheet of oil resistant material laminated to a thin paper backing, the composite sheet being spirally wound with its adjacent edges in overlapped relation and adhesively secured to the inner body Wall, the edge of the backing being enclosed in a reversely turned fold of the oil proof material, Which reverse fold is adhesively secured to the face of the oil proof sheet immediately adjacent thereto.

2. A destructible oil proof container comprising a body portion formed of paper stock, and an inner oil proof lining composed of a sheet of oil resistant material laminated to a thin paper backing, the composite lining being spirally Wound with its adjacent edges in overlapped relation and attached to the inner body Wall, the edge oi thebacking being enclosed in a reversely turned fold of the oil proof material, which reverse fold is adhesively secured to the face of the oil proof sheet immediately adjacent thereto.

3. A destructible oil proof container comprising a body portion formed of a heavy` paper stock, and an inner oil proof lining composed of a sheet of relatively thin paper and a regenerated cellulese sheeting laminated thereto with an edge of the thin paper enclosed in a reversely turned laminated fold of the cellulose sheeting, the lining being spirally wound with its adjacent edges in overlapped relation and the reversely turnedportion of the cellulose sheeting adhesively seadjacent turn, said lining being secured to the I inner body wall.

DAVID SCHMIDT.