US2309341A - Closure - Google Patents

Description

I Jan. 26, 1943.

R. ls. coNDoN 2,309,341

CLOSURE Filed Aug.` e, 1940 T gi 30 44 ROBERT 15 CoA/DON' breast of such size that Patented Jan. 26, 1943 Robert s. condon, mama. vi.,

Can hinery Corporation, Rutland, Vi.l` a

Mac

corporation ofV Vermon' Application Alltli 6, 194., Serial No. 351,567 1 claim.: (ci. zza-5.1)

'I'he present invention relates to closures and more specifically to a metal closure particularlyv fibrous material.

Closures for such containers usually ltake two forms; one wherein there is provided a ring or it permits a full openpermit the emptying ofthe contents from the container. The other type utilizes a breast provided with a centrally located neck to receive the cap or cover; the opening through the neck being of considerably less size than `the opening of the container and the breast forming the closure for that portion of the top of the container between the neck and the periphery of the container. i

Heretofore, in the manufacture of closures intended to provide a full opening into a fibre bodied container, it has scope the ring or breast over the end of the container body, which, when the removable cap was placed on the ring, resulted in its outer periphery extending well beyond the can body. Because of this construction, when the containers were packed with the closures in abutting relation-- ship, there would be considerable loss of space between two adjacent body members, thus adding considerably tothe cost of packing and shipping. In addition, the portion of the closures overhanging the container body gave the contained a top-heavy appearance, which, from a merchandizing wint of view, is highly undesirfore mentioned.

i A still further object 'is a two-piece closure for assltnor to Fibre a nbre body container wherein the Vouter perlphery of the cap or cover is substantially ilush with the outer wall ofthe container body.

A still further object is a two-piece metal ciosure for a iibre body container wherein the ring accomplish the seaming-operation. Other objects will be in part obvious and in part pointed out more in detail hereinafter.

- e invention accordingly consists in the features of construction, combination of elements, and a ement of parts which will be exemplitied in the construction hereafter set forth and the scope of the application of which will be indicated in the appended cl been customary to telesuch size that it may telscope within the interior v 4in section to show In the accompanying drawing:

Figure l is a view o! a completed container partly in section to show the construction of the closure embodying the invention herein:

Fig. 2 is an enlarged fragmentary view showing the ring or breast of the closure in position on the end of the container body just prior to Benning;

Fig. 3 is a view similar to Fig. 2 with the ring or breast seamed to Fig. 4 is a view of the body; and a completed container partly the construction of another type of closure embodying the invention'herein.

Referring to the drawing, the closure shown in Figs. 1 to 3 comprises a breast or ring ill of such size that it provides-a full opening into the container body I2. The breast I0 has secured therein a drumhead or tamper-proof seal IQ and carries a removable cap i 6.

More specifically, the breast il comprises an Vinner ring Il (see Fig. 3) of considerable depth and having the metal at its lower end reversed or tucked back upon itself through 'to provide an vouter wa'll 2l to form a double wall thickness having an outer peripheral dimension of of the body I2. As indicated, the outer wall 2l is of les; height than the inner wall Il, and extending outwardly from the upper edge thereof is bend or seam' it downwardly surface of the body portion l2 and partially em- `bed the bead 24 into the container body. The

can body over Y after inserting the' depending peripheral rim ,i .securing the cap;

er securing means could be Y l threads or a friction connection. As the rim 34 of the cap nts closely to the outer surface of the plate 4o; Y the openingy through closure ring I is thus secured with the end 2l i: the body portion enciosed within a v-shapea channel formed by the outer wall of the ring and the down-turned flange 22.

This seaming operation can be carried out without the use of an interior chuck or hom for backing up the seaming wheelbecause when the metal is reversed upon itself through 180 at the lower edge thereof there is provided a rim 23 of double the thickness of the metal employed in makingthe ring. This rim provides an angle iron eiect, adding sufficient strength to the otherwise relatively light metal of the body portion to permit seaming without backing up the ring during the seaming operation.

The foregoing construction isiparticularly advantageous Where the ring carries the tamperproof seal I4. This seall consists of any suitable type of breakable material secured as, for example, by bending over the upper peripheral edge of the body portion Il of the breast Il! to provide Va. flange for securely holding the upturned peripheral edge 3l of the drumhead in position. In

. the container bodyas the manufacture of the closure, this drumhead is secured before. the ring is seamedto the container body. It, l prevent the insertion of a chuckto back up the seaming wheel, and, therefore, if the constructionvr shown were not utilized, it would be necessary to place the container over a horn to provide a backingfor the seaming wheel. The insertion of such ahorn requires extra operations inasmuch as each body would have to be placed over. the. horn and then removed therefrom; vthe difficulties of such operations increasing as the length of the container is increased. It will also be noted that with this construction the portion of the inner wall I3 above the plane of the flange 22 provides a throat for receiving the cap member I6, this throat extending beyond the end of thebody i2 and lying within the circumference defined by the inner surface of rthe fibre body I2. In the embodiment shown, the cap I6 is of usual construction having a top plate 32 and a inner wall of the ring and lies above the shoulder the yentire cap is disposed within the compass of the container body, and no loss of space results in packing. In addition, the container does.` not appear top-heavy or oversized at one end.

In the embodiment illustrated in Fig. 4, the

vbreast includes a top plate 4|I and a centrally arranged neck 42 extending upwardly from the the neck 42 being substantially less than theopenlng into the container body von which the breast is secured.

is apparent that the drumhead wouldv 34. The cap I6 .and`

In this type of closure, the plate 40 tapers downwardly from the neckyand is provided at its outer peripheral edge with a depending inner wall 4B, which, as in the first embodiment. is. reversed upon itself to provide an outer wall 48 and an extending flange 50 terminating in a bead 52. The outer wall 48 is shown as being of like height to the body portion 46, although it 'is apparent that the wall 48 need only be of sufficient height to permit a secure gripping of the closure onto therim 54 formed by the reversal of the metal will provide sumcient strength to permit the seaming operation. Upon the bending down of the flange 50 to seam the closure into position, the plate 40 will extend to the outer periphery of the body, eliminating the deepv trough heretofore found in this type of closure. As indicated, the closure may carry a drumhead 56 and a cap 53, both of which are of like construction to that shown in the prior embodiment.

As many changes could be made in the above construction and many apparently .widely different embodiments of this invention could be made intended that -all matter .contained in the above description or shown in the accompanying drawing shall beinterpreted as illustrative and not in a limiting sense. 4 i

It is also to be understood that the language used in the following claim is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as.l a: matter of language, might be said-to fall therebetween.

I claim as my invention;

In combination, a fibre body, a closure for said fibre `body includinga breast and a removable cover carried by said breast, said breast comprising-a one-piece metal ring having` an inner cylindrical wall portion of substantially equal uniform diameter throughout its length and an outer wall portion of lesser height than said inner wall porwall portion upon itself, a seaming ange extend- `23 formed by the jointure of the ring and body,

ing radially from the upperV edge of said outer wall portion, said outer wall portion and the overlapped lower end of said inner wall portion being I telescoped within said fibre body with the bre body abuttingl the seaming fiange,'said flange being bent down and secured against the outer surface of said fibre body to secure said breast in position, said inner wall portion of the breast extendingabove the plane of said seaming nange to provide a cap' receiving throat lying substan-Y tially within the circumference defined by the inner surface1 of the body, said cap having a depending peripheral flange closely fitting the outer surface of said throat whereby said cap is substantially iiush with the outer surface of the fibre body. v

ROBERT S. CONDON.

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