US1954568A - Container - Google Patents

Description

CONTAINER W. J. KENNY Filed Aug. 4, 1931 April 10, 1934.

INVENTOR y a ATTOR Y a 4 4 VllilllllllllllldlI/fflf II/IIJl/ll/ll /17!!! Patented Apr. 10, 1934 CONTAINER William J. Kenny, Cicero, Ill., assignor, by direct and mesne assignments, of one-half to American Can Company, New York, N. Y., a crpora-. tion of New Jersey, and one-half to Swift and Company, a corporation of Illinois Application August 4, 1931, Serial No. 555,043

3 Claims.

The present invention relates to sheet metal tin coated containers and has for its object the improvement and simplification of their construction so as to particularly adapt them for holding products which have the property of chemically reacting upon a contact with the sheet metal base of the ordinary container.

Such reactions produce discoloration of the product and adversely affect its saleability and it is to the avoidance of such a condition that the present invention is directed. This invention contemplates the use of the usual sheet metal materials and the turning under ofall raw edges with the location of these edges outside of the container where they cannot contact its contents. So constructed, these containers may be easily closed by outside friction slip covers.

The principal object of the present invention is the provision of a sheet metal container of improved construction which has a practically unrestricted or full open mouth adapted to be closed by a slip cover having substantially full engagement of its frictional surfaces and one wherein all raw edges of metal are disposed outside of the container and-out of contact with it contents.

A further object of the invention is the provision of a container of the class described wherein there is close cooperation between cover and body which permits of an additional snap or yielding closing interengagement of its parts when desired, preventing accidental removal of the cover; 5 Numerous other objects of the invention will be apparent as it "is better understood from the following description, which, taken in connection with the accompanying drawing, discloses a preferred embodiment thereof.

Referring to the drawing:

Figure 1 is a side elevation of a container embodying the present invention;

Fig. 2 is a top plan view of the same;- and Figs. 3 and are enlarged fragmentary sec- 0 tional views through container and cover, being taken substantially along the lines 3-3 and 4-4 in Fig. 2.

The container or tin canyexemplifying. the present invention, is preferably constructed of 0 tinplate and is so fabricated as to avoid any contact between its-contents and the base metal of the plate. Many food products chemically react with iron, which is the base metal of ordinary tinplate but do not chemically react with the tin coating of the plate. Eggs are one prodnot having such chemical characteristics and the container illustrated is well adapted to the packaging of such a product. These eggs are removed from their shells and disposed as a mass Within the container. They are subsequently frozen to prevent spoilage. This product is unsatisfactory when shipped in the ordinary friction top or slip cover can because when it is first put in, being in more or less of freely flowing liquid'form, it quickly contacts and chemically reacts with the iron in the can which is exposed at certain places, particularly in its cover end, and discoloration follows. Such discloration is highly undesirable and detracts from the merchantability of the product.

A preferred form of improved container of the character described may consist of a body 11 having a bottom 12 secured thereto as by a double seam. 'In such a joint, the raw edges of both body and bottom are exterior to the container and only the tin coating is presented to the contents placed in the can. The body 11 is preferably reinforced near its upper end by a beaded section 13 above which extends a smooth friction wall 14 emerging at 15 into an annular inclined or oblique wall so 16 extending inwardly from and inside of the container wall. This angular position of the wall 16 avoids comers or pockets on the inside and provides for free discharge of the contents when emptied from the can. 1

The wall 16 is bent around upwardly, outwardly, downwardly and inwardly to provide an open curl, roll or tubular end 17 having its outersurface in line with the outside surface of the friction wall 14. This disposition of the curl 17 locates its terminal raw edge, designated by the numeral 18, outside of the wall 16 and exterior of the cam body: It also produces a smooth unbroken surface for the mouth of the container. The inclined or oblique nature of the wall part 16 also permits ready escape of water or drops of moisture which may form in the curl or tubular end 1'7 during the freezing andthawing to which the container and itscontents may be subjected as previously stated.

A cover 21 is provided for closing the can and this cover preferably comprises a central panel 22 which is bounded by a curved wall 23 connecting with a channel wall 24 which merges into a substantially vertical friction wall 25. The wall 25 is connected by. a rounded curved or semi-cir- 5 cular wall 26 intoa smooth uninterrupted vertical flange 27-preferably bent outwardly at its terminal edge into a curl 28.

In closing the container the cover 21 is positioned over its open end, the friction surface of its flange wall 27 sliding or slipping over the friction body surface 14 and its friction wall 25 sliding inside of the body curl 17. In its finally closed position the cover friction wall 27 engages both the body curl 17 and the friction wall 14 and its curved annular wall 26 rests in close contact with the upper half of the body curl 17, the wall 25 extending downwardly into the can. This closed position of the parts and their close fitting cooperation provides a reasonably tight joint.

In some instances, and this applies to the shipment of eggs, it is highly desirable that additional closing features be incorporated in the container and cover so that friction alone will not be the sole holding element. Such additional holding features may be provided by specially shaping parts of the cover walls 23, 24 and 25. At intervals in these walls there is, accordingly,

' formed in the wall 25 spaced lugs or lips 31 the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. In a container of the class described, a rolled edge at the mouth thereof, said roll being formed integral with the side walls of the container, the wall portion below the roll being bent inwardly whereby the roll is positioned within the outer periphery of the container, the rolled edge being rolled in tubular form such that the edge of the metal is adjacent the outer surface of the container and is substantially at the lowest point of the circumference of the tubular roll, said roll being so positioned that in cross section the line of the outer surface of the container extended is tangent to the outer surface of the roll.

2. A container comprising a body formed with an outer friction wall adjacent an open end, said body above said wall being bent inwardly obliquely from said wall and upwardly and terminating in an outwardly curled end, whereby said end is positioned within the outer periphery of said body, said end being so positioned that in cross section the line of the outer surface of said friction wall extended is tangent to the outer surface of said end.

3. A container comprising a body formed with a friction wall adjacent an open end, said body above said wall being bent inwardly obliquely to said wall and upwardly and terminating in an outwardly curled end, whereby said end is positioned within the outer periphery of said body, said end being so positioned that in cross section the line of the outer surface of said friction wall extended is tangent to the outer surface of said end, and a cover adapted to frictionally engage said outer surfaces.

WILLIAM J. KENNY.

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