Патент USA US2110843код для вставки
March 8, 1938. D. SCHMIDT - 2,110,843 DESTRUCTIBLE OILA CONTAINER Filed Aug. 7, 193e ATTO RN EY Patented Mar. 8, 1938 2,110,843 yUNITED STATES . ` PATENT oFFlcE ' n E-l-s s U En 2,110,843 nEs'rnUcTmLE on. CONTAINER David Schmidt, Lalîxewood, Ohio, assignor to The Nov 11 1941 Dobeckmun Company, Cleveland, Ohio, a cor poration of Ohio Application August 7, 1936, Serial No. 94,776 3 Claims, l(Cl. 229-14) The present invention relates to the manufac erably formed of a pluralityI of plica-two plies I' ture of a container, the body portion of which is and Ib being illustrated. The plies, whether two made of a paper stock, preferably cardboard, or more, are adhesively secured together ani. ¿aid * chipboard, or similar materials, it being the pur with the seams out of register. This form of 6 pose to devise a container, the major portion of cardboard tubing is old and well known. which can be destroyed easily, as by burning. The» oil resistant properties are secured by an The especial purpose of the invention has been inner lining of an oil proof sheet which is. to provide a container of this type in which motor indicated by the numeral 2. This is preferably a oil could be packaged and shipped. The retail sheet made from regenerated cellulose sheeting, 10 sale of oil from bulk has been recently supplanted' known by the trade name “Ce'llophane”, or equiv 10 by the sale of oil from individual cans, so that the alent material, such, for example, as any. cellu customer is assured of receiving standard brands loslc or other film which is oil proof. These ma and qualities of oil. 'I'his practice has given rise _Iterials which are well known- oil resistant sub- _' to a number of objectionable features, a major stances, have the added advantage that they 15 diiiiculty being the destruction of the empty con- ' --readily "shed” oil, so that the amounts previ 15 tainers. The cans which are usually of tin, are y 'o_usly essential to give full measure in the old me tallic cans, are reduced with the improved con them is an expensive and troublesome operation. . In addition, the oil tends to cling to the metal sur-` It has been proposed heretofore to line a con 20 faces of the can and it is necessary that the man tainer with “Cellophane” or similar materials, 20 -not easily destructible, and the disposition of ufacturer 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 “search ing” property of oil. `-‘ It is the purpose of the present invention to de sign 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 slìown 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 re taining the essential and characteristic features of the invention. ’ In the drawing . ‘ 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 25 paper lining 3 by any of the usual laminating processes suitable and well known for the pur pose. ' 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 30 oil proof sheet about the edge of the backing as shown at I in Fig. 4. The paper which is em ployed is readily adhered to the inner turns of the body during the process o_f making. the‘tube, 35 -, 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 lin Fig. 1 is a vertical cross section through the im' 40 provedcontainer, illustrating the various features A ing on the next adjacent ply so that a seal is 40 thereof which have made it possible to construct an oil proof container of this type; . 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 Fig. 2 is a view showing the body of the can broken away in the several plies or layers a'nd il _ adhesive which will resist the oil and will secure ly adhere the opposed surfaces of the “Cello. ß lustrating the constructional details thereof; Fig. 3 is an enlarged View at the edge of the can phan ” or other lining. Such an adhesive may 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 over lapping spiral seam. _ The container comprises the main or body por tion l, which is formed of spirally wound layers or plies of a heavy paper stock, such as cardboard. ß strawbóard, chipboard. 'or the‘like. This is pref 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 oellu- - lose sheets and causes the two surfaces to unite 50 into an oil proof seal. . I 'I'he- paper 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 illus 2,110,843 trating the construction. In fact, the seam is _ only slightly perceptible. The container shown and described herein forms an oil tight receptacle for the transporta the essential features _of the invention which~ tion and storage of oil. It solves the problem of providing a can, the body of which may be The lining which has been described, is one of consists in first laminating the oil proof liner easily destroyed. to a. paper backing and then incorporating this and is cheaper and better in many ways than compound sheet, as the inner ply of the con the standard tin can which has been used for the purpose. tainer, adhering the backing sheet to the inner It is more economical of oil formed. AThe paper backing is relatively thin so that the added thickness caused by the overlap What is claimed is: 1. A destructible oilproof container compris ing a.` body portion formed of spirally Wound heavy paper stock, and an inner oil proof lining ping is reduced to a minimum. composed of a sheet of oil resistant material Wall of the main body. 'I'here is no leakage or 10 seeping of oil through the spiral joint thus This secures an , 4 oilV tight joint at the ends of the can where a ' laminated to a thin paper backing, the com 15 relatively thick overlap would give rise to crevices posite sheet being spirally wound with its ad through which the oil could seep. The end of the container gives a serious prob lem 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 25 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 30 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 35 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, cir cular rib I4, which affords a support for the disk and prevents spreading of the seam. Any suit 45 able formation of the disk may be adopted pro vided that the Weight of the oil is prevented from bending the disk outwardly.A 15 jacent edges in overlapped relation and adhe sively 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 25 backing, the composite lining being spirally Wound with its adjacent edges in overlapped rela tion and attached to the inner body Wall, the edge oi the‘backing being enclosed in a reversely turned fold of the oil proof material, which re 30 verse 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 35 of relatively thin paper and a regenerated cellu lese sheeting laminated thereto with an edge of the thin paper enclosed in a reversely turned laminated fold of the cellulose sheeting, the lin ing being spirally wound with its adjacent edges 40 in overlapped relation and the reversely turned portion of the cellulose sheeting adhesively se cured tothe face of the sheeting on the next p adjacent turn, said lining being secured to the 45 I inner body wall. DAVID SCHMIDT.