US1689018A - Packing container - Google Patents

Description

Oct. 23, 1928.

FROIDEVAUX PACKING CONTAINER Filed Dec 2 Sheets-Sheet 1 Attorney Oct. 23, 1928.

M. FROIDEVAUX PACKING CONTAINER Filed Dec. 12, 1924 zsheet s-sheet 2 oz Ware e1 7% wide va L X Attorney.

Patented Oct. 23 1928.

UNITED) STATES -1,689,018 PATENT OFFICE..-

MAROEL FROIDE'VAUX, OF GENEVA, SWITZERLAND, ASSIGNOR T0 KUSTNER FREBES &; CIE. SOCIETE ANONYME, 0F GENEVA, SWITZERLAND, A. SWISS COMPANY.

PACKING CONTAINER.

Application filed December 12, 1924, Serial No.

10 meable sheet constituting a lid orcover, the

size of the said second sheet being such that it covers the opening of the shell as well as at least a portion of its flange, in securing the above mentioned flange and the edge of the second sheet to each other, and finally in turning down the whole constituted by the edge and the flange, on to the container.

The container is characterized by the fact that it comprises a shell made of an impermeable sheet provided with an outside flange round its opening, as well as a cover or lid which is also constitutedby an impermeable sheet, the edge of which projects beyond the said opening, the said flange and edge being secured together and turned over on the container.

Two methods of carrying out the process according to the invention are illustrated by Way of example in the accompanying drawing applied to the packing of cheese.

Figures 1 to 9 are cross-sectional views of a container according to my invention in various stages of being closed and sealed.

' Figure 10 shows a partial'modification of the said container, an

' Figures 11 to 17 are views similar to Figures 1 to 9 inclusive showing a different type of container.

- First ofall a shell or body a is formed by stamping out a sheet of tin paper, the body ofwhich shell is cylindrical and has round its o ening c an annular outside flange d (Figure 1) Into the shell thus formed is introduced the cheese e in fluid or semi-fluid state so asto fill it up tothe level of the flange al- (Figure 2). Thls having been done, over the said shell and its contents 0 is placed a second sheet fof tin,'of circular shape, of a diameter materially smaller than the outer diameter of the flange (1 (Figure 3) The'projecting portion n of the flange d is then raised into vertica-l position (Figure 4) the inner portion 0 of the flange d and the edge ;0 of the sheet are raised so as to bring to an angle of Fig- 755,419, and in Switzerland December 26, 1923.

ure 5) to the horizontal,the portion n is turned down over the edge 3) so as to secure the edge and the flange together in a firm and air-tight manner (Figure 6). The Whole constituted by the edge 12 and the flange d is then brought into vertical position level with the body I) of the shell a (Figure 7) then into a position inclined over the said body (Figure 8), finally 1t is depressed downwards into the cover f (Figure 9) so that it shall not project mate rially beyond the volume delimitated by the shell 0. When the external pressure is applied to bend the edges of the container and cover,

the thin metal of the container is braced from within by the contents and held, so as tocooperate with the external pressure and efPable the edges of the container and flange to be so compressed as to form an airtight seam aroundthe outside of the container.

In the modified method shown in Figure 10, the projecting portion n of the flange d, after having been placed in vertical position as in Figure 4, is directly turned down over the edge p of the sheet f without the said edge p and the portion 0 of the flange all having been brought to an inclined position.

According to the second method of carrying out the process, first of all, a shell on is also form'ed'by stampin out in a sheet of tin paper. The body oft c said shell ais cylindrical and provided round its opening 0 with an annular outside flange 03 (Figure 11). Into the shell 0; thus formed is introduced the cheese 6 in a fluid or semi-fluid state so as to fill it to the level of the flange 03 (Figure 12) This having been done over the said shell-a and its contents e is placed the second sheet of tin paper f of circular shape, the diameter of which is considerably larger than the outside diameter of the flange d (Figure 13) The projecting portion at of the edge of the sheet f is then first turned downwards (Figure 14) then inwards (Figure 15) so as to secure the edge and the flange together in a firm and air-tight the diameter of thesheet f, instead of being difierent, could be practically the same. The container, instead of being of circular shape,

the said body, so that it shall could be of any other desired shape, for instance that of a rectangle, triangle, sector lozenge. v p

In the method described, the turning down of the edge of the sheet f over the flange d is single and flat, but it could also be double, treble, and havin the shape of a roll. The

I securing of the e ge of the sheet f and of the flange p could be moreoverueflected in some other manner, for instance by means of radial, or annular perforations or corrugations provided simultaneously in the flange and in the edge.

The packing is for cheese and other food products that are to be put up in a fluid or semi-fluid state. .The container is thereforemade of so called tin paper or some other very thin flexible metal which can easil be bent to 've the finished container the orm shown in Figs. 9 and 17. Without tin paper or some similar material the container could not be filled and closed as described without spilling and losing some of the contents. It 1s therefore quite necessary that the container and cover be made of some very thin material which allows bending of the the periphery of the flan filled with substantially solid or semisolidmaterials, being bent over upon the cover. and and cover being then bent over together wlthin the periphery of the container and upon the cover and ressed down to be flush with the outer suraee of the cover, the materials in the containbeing bent, and cooperatingwith the external pressure to cause said edges to form a seam around the outsidepftlie container.

2. A container'oEf very thin metal comprising a shell having an integral bottom and an opening at the top, an exterior laterally extending flange surrounding the opening, and a cover to be disposed upon said flange, one of said/parts, after the container has been filled with substantially solid or semisolid materials, to have its edges bent over the edges of the other part and the edges of the cover and flange being bent then together against the outside surface of the container and pressed inward of the container until they are flush with said surface, the materials in the container bracing the thin metal thereof from within when the edges of the cover and flange are being bent, and cooperating with the external pressure to cause said edges toform a seam around the outside of'the container.

3. A container of very thin metal comprising a body-having an integral bottom and an o enin at the top, an exterior laterally exten ing ange surrounding said opening, and a cover to be disposed upon the flange, the ed es of the flange and cover, after the container as been filled with substantial ly solid or semisolid materials, to be turned over together and pressed inward of the con-.

tainer until they are flush with the outer surface of the cover, the materials in the container bracing the thin metal thereof from within when the edges of the cover and flange are being bent, andcooperating with the external pressure to cause said edges to form a seam around the outside of the container;

In testimony whereof I have aflixed my sig- I nature.

MARCEL. FltOIDEVAUX.

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