Metallic jar

Feb. 14, 1939.

2,147,263

W. C. MILLS

METALLIC JAR

Filed Nov. 4, 1936

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Patented Feb. 14, 1939

2,147,263

UNITED STATES PATENT OFFICE

2,147,263

METALLIC JAR.

Wallace C. Mills, Rockford, III., assignor to J. L.

Clark Manufacturing· Co., Chicago, III., a corporation of Illinois

Application November 4, 1936, Serial No. 109,066

Claims. (Cl. 220—10)

The invention relates to small metallic jars of the type especially suited for use as containers for cold cream, ointments and the like.

One object of the invention is to provide an improved container of this type having a closure cap and means for preventing a substantial reduction in pressure within the container during the removal of the cap so that mobile material within the container will not be dislodged.

Another object of the invention is to provide such a container including a container body with an elongated neck terminating at its lower end in a wide shoulder, and also including a simplified form of double walled closure cap adapted to fit snugly about the container neck while having its cuter surface flush with the outer wall so that the exterior of the container will have a smooth contour of pleasing appearance readily adapted for lithographing or other ornamentation.

The invention also resides in certain structural improvements of the component parts of the container by means of which its manufacture is simplified.

Further objects and advantages of the invention will become apparent as the following description proceeds and the features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this specification.

For a better understanding of the invention reference may be had. to the accompanying drawing in which,

Figure 1 is a perspective view of a metallic jar or container embodying the invention.

Fig. 2 is an enlarged vertical section of the container shown in Fig. 1.

Fig. 3 is a fragmentary sectional view of a container similar to that shown in Figs. 1 and 2 but provided with a modified form of closure cap.

In carrying out the invention, a container of double walled construction is preferably employed. This double walled construction may be conveniently had by utilizing inner and outer shells spaced apart to form a narrow annular air space therebetween and having their upper end portions coacting to form a neck of reduced diameter adapted to receive a closure cap. In accordance with one aspect of the invention the closure cap is also preferably of double walled construction in order to form a skirt portion of sufficient, thickness that the outer wall thereof will lie flush with the outer wall of the container so that the exterior of the container will present a smooth contour of pleasing appearance readily adapted for lithographing or other ornamentation. In accordance with another aspect of the invention, the container is so constructed as to prevent dislodgment of mobile material within the same upon removal of the closure cap. It 5 will be understood, of course, that this feature is applicable to containers having closure caps of either double or single walled construction.

Referring now more particularly to Figs. 1 and 2 of the drawing, a preferred embodiment of 10 the invention comprises spaced outer and inner shells I S and 1S with their upper end portions coacting to form a neck !2 of reduced external diameter, The container is closed by a cap or cover S3 having a depending skirt portion tele- 15 scoping over the neck ·2.

The outer shell ί 0 is tubular in shape and may be made from a fiat sheet of metal of relatively light gauge, fashioned to form a peripheral side wall 14. The lower edge of the outer shell 19 20 is curled inwardly and upwardly as indicated at 55 to form an inwardly projecting supporting flange extending about at least a portion of the lower edge.

The inner shell ί I is cup-shaped and may be 25 drawn from a flat sheet of metal to provide a peripheral side wall IS and a bottom wall 17. This bottom wall of the inner shell is disposed within a centrally located recess 18 formed in a supporting disk !9 loosely carried by the flange 30 15. The disk IS is preferably flexible in order that its edge portion will be flexed upwardly to admit air to an annular air space 2Θ between the side walls of the inner and outer shells upon a reduction in pressure therein as is hereinafter 35 described in greater detail.

It is desirable that a container for cold cream, ointments, or the like should have a smooth rounded upper edge free of crevices or irregularities. To this end, the upper portion of the 40 inner shell ί! is bent outwardly and downwardly to form a collar 2! of substantial width which constitutes the neck portion of the container. It will be noted that the upper edge of the inner shell 11 is of smooth rounded contour as indi- 45 cated at 22.

When the inner shell is fashioned as described above to form an elongated neck on the container, the adjacent edges of the inner and outer shells are preferably secured together at the 50 lower end of the neck. In such case, however, the juncture of the inner and outer shells forms a relatively wide shoulder at the lower end of the neck portion and consequently, it is desirable to utilize a closure cap having a relatively thick skirt 55

2,147,263 portion such as is hereinafter described in order that the outer wall of the closure cap will lie flush with the side wall of the container body. In the preferred construction illustrated, the upper edge 5 of the outer shell 10 is curled inwardly to form an annular bead or flange 23. The adjacent lower edge of the collar 2 i is bent outwardly to snugly fit the lower side of the bead 23. It will thus be seen that the supporting disk 19 presses 10 the inner shell 11 upwardly so that a tight frictional fit between the adjacent upper edge portions of the inner and outer shells is had.

The closure cap 13 shown herein as an illustrative embodiment of the preferred double walled 15 construction used with a container having a wide shoulder thereon, such as that illustrated, is of the suction type although it will be understood that this double walled construction may also be applied to other types of closure caps. The par20 ticular cap illustrated includes nested inner and outer cap shells 24 and 25 which may be drawn from sheets of light gauge metal. The inner shell 24 is provided with a top wall and a depending peripheral skirt 26 adapted to fit snugly 25 about the neck 12. The elongated contacting surfaces of the collar 21 and skirt 26 form a long bearing surface for the cap so as to insure a firm seating for the same. The outer cap shell 25 is provided with a top wall which may be dished 30 upwardly, as best shown in Fig. 2, and a peripheral depending skirt 27 disposed in spaced relation with respect to the skirt 26. The lower edges of the skirts 26 and 27 are secured together, the lower edge of the outer skirt 27 being preferably 35 bent inwardly as indicated at 28 so that a smooth edge for the skirt will be had. In the cap shown in Fig. 2, the lower edge of the inner cap shell 24 is fashioned in the form of an annular outwardly extending bead 29 disposed within the curved por40 tion 28 of the outer shell. The inner side of the bead is open to receive the edge of the outer cap shell so that there will be no exposed raw metal edge. A deformable sealing disk 30 may be disposed within the cap 13 and as shown in Fig. 2, 45 rests on the broad edge 22 of the inner container shell 11.

Fig. 3 illustrates a modified form of double walled cap construction applied to a container identical with that described above. The same 50 reference numerals have been used to identify the outer and inner shells i 0 and 11 of the container body, as well as the collar 21 and broad upper end 22 of the inner shell and the bead 23 on the outer shell. The modified form of closure 55 cap 13^a is similar to the cap i 3 in that it includes nested inner and outer shells 24^a and 25^a having skirt portions 26^a and 27^a disposed in spaced relation and adapted to fit about the neck of the container. The lower edge of the skirt 26, however, 09 is curved outwardly and upwardly as indicated at 29^a to form an annular bead received within the curved lower edge 28^a of the outer skirt 27^a, rather than bent outwardly and downwardly as is the inner shell in the construction shown in 05 Fig. 2. It will also be noted upon reference to Fig. 3 that the edge of the outer shell is not bent upwardly so great a distance as in Fig. 2, since it is unnecessary to utilize this edge of the outer shell to close the open side of the annular bead ₇₀ formed in the inner shell.

It has been found that there is some tendency to dislodge the mobile contents of a jar of the type described during removal of its closure cap. Thus, it frequently happens that some of the cold ₇5 cream or other material contained in the jar will adhere to the inner surface of the cap when it is removed. In order to prevent this undesirable action, means is provided for preventing a substantial diminution in pressure within the container during the removal of the cap. It is par- 5 ticularly desirable that such means be employed when the cap is of the suction type and has a long bearing surface as in the case of the caps illustrated. In general, means is provided for establishing communication between the interior 10 of the container and the annular air space 20 between the inner and outer shells i 5 and 11 during the removal of the closure cap 13. In the particular construction illustrated, a small vent or breather hole 31 is formed in the outer side of the 15 broad edge portion 22 of the inner shell 11. When the closure cap 13 is slid upwardly to remove the same, there will be a slight reduction in'pressure within the container so that air passes from the air space 26 through the hole 3! to the interior of 20 the container as soon as the pressure of the cap on the sealing disk 3S has been released. The air space 20 is sufficiently large so that no substantial reduction in pressure will occur therein.

Also the disk ! 9 is loosely positioned so that some 25 air can leak into the air space from the atmosphere if required. The pressure within the container is thus maintained substantially at atmospheric pressure. On the other hand, the relative positioning of the hole 3! and sealing disk 36 pre- 30 vents the exposure of the contents of the container to the air when the closure cap is in place.

Although certain specific embodiments of the invent^fon have been shown and described in some detail for purposes of illustration, there is no in- 35 tention to thereby limit the invention to such preferred embodiments but, on the other hand, the appended claims are intended to cover all modifications within the spirit and scope of the invention. 40