US2131969A - Sealed package - Google Patents

Description

A. PODEL SEALED PACKAGE Filed July 50, 1932 IIIIIII.

7' '/am Padel Patented Oct. l4, 1938 UNITED STATES sEALEnyPACKAGE Abraham Pudel,V New York, N. Y., assignor to Anchor Cap & Closure' Corporation, Long Island City, N. Y., a corporation of New York Application July 30, 1932, Serial No. 626,838

Claims.

The present invention relates toY closures, and more particularly to closure caps for bottles and the like, and the method of making.

A common form of package for ketchup, and

5 -similar products, comprises a bottle having a crown finish adapted to receive a hermetic closure such as a crown cork cap, and having threads below the crown finish for securing a cover cap upon the bottle. Preferably, the cover 'caps are made in two pieces, that is, a top portion or disc member is secured to a tubular skirt member. Heretofore, it hasv been customary to provide the lower edge of the skirt with a relatively large circular, hollow bead which was 'adapted to abut against, or be spaced from, an arcuate or rounded shoulder on the container. f

A serious objection to the above construction is that the large bead on the cap and the shoulder on the container give the package a top-heavy and disproportionate appearance.

movement of the bead of the cap and, for this reason, the top part of the cover cap cannot be sealed against the mouth of the container. Consequently, the cover cap is not adapted to provide an effective reseal to preserve the remaining ,contents of the container. Furthermore, packers use hermetic inner seals of varying thickness, whereby a definite relation between the bead and the shoulder cannot be maintained with the several types of inner seals without having a different glass finish for each.

The present invention aims to overcome the above diiculties and objections by providing a container having a glass nish adapted to receive the bead portion of the cap, both during the initial seal and when the cover cap is applied to 45` provide a reseal, irrespective of the type of inner seal used. The present invention also provides an improved bead, or wire edge, which is not conspicuous and cooperates with the shoulder on the container to provide an attractive package, and an improved method for making the bead of the cap, which reduces the manufacturing cost thereof.

An object of the present invention is to provide a'closure cap having an improved wire bead in 55` the lskirt thereof.

'I'he shoulder on the container, while provided for decorative (Cl. 21S-43) Another object ofthe vinvention is to provide a simple, inexpensive method for making th closure caps of the present invention.

Another object of the invention is to provide a cap and container wherein a simple glass iin- 5 ish will provide an attractive package and an effective seal, independently of the thickness of the hermetic closure.

A further object of the invention is to provide an attractive, serviceable, sealed package which ,10 overcomes the difculties and objections noted above.

Other and further objects of the invention will be obvious upon an understanding of the illustrative embodiment about to be described, or 16 will be indicated in the appended claims, and various advantages not Vreferred to herein will occur to one skilled in the art upon employment of the invention in practice.

A preferred embodiment of the invention has been chosen for purposes of' illustration and description and is shown in the accompanying drawing, forming a part of the specification, wherein Fig. 1 is a side elevational view, partly in section, illustrating a preferred embodiment of the present invention;

Fig. 2 is a side elevational view, partly in section, illustrating a closure cap of the present invention sealed upon the container after the hermetic closure, such as shown in Figs. land 3, has been'removed; y

Fig. 3 is a side elevational view, partly in section, illustrating the present invention utilizing adiierent form of hermetic closure;

Fig. 4 is a sectional view illustrating the first step in the formation of the bead in'the skirt of the cap;

Fig. 5 is a side elevational view, partly in section, illustrating the second step in the formation of the bead in the closure;

Fig. 6 is an enlarged fragmentary sectional view, illustrating a preferred form of the iin ished bead; and Y Fig. 'l is an enlarged fragmentary sectional view, illustrating a .modified form of the finished bead. l

Referring again to the drawing, and more particularly to Figs. 1 and 2, there is shown a container l, such as a bottle for ketchup or the like, having an annular portion 2 adjacent to the mouth thereof, which provides a suitable crown finish on the glass. Preferably, a crown cork closure capis sealed on the glass nsh of the container in the usual manner, tor provide a hermetic seal.

In order to facilitate the application of a cover cap, such as will be described hereinafter, suitable thread means 5 are provided on the container below the crown portion 2. The thread means 5 are illustrated herein asa single continuous thread but, if desired, several interrupted or divided threads may be advantageously utilized. At a convenient distance below the thread 5, or other cap engaging means, an annular shoulder or bead is formed on the container, which is adapted to permit the lower edge of a closure cap to be telescoped thereover. Preferably, the shoulder comprises-a straight vertical or cylindrical zone 1, so that the lower edge of the cap skirt is always adapted to bein contact therewith, even when the effectiveV depth of the cap skirt varies with respect to thev container finish. In order'to enhance the appearanceV of the shoulder 6, vthe upper and lower portions thereof are'rounded orbevelled, as shown at 8.

The cover cap 9 illustratedherein may be constructedl of metal such as tinplate, having a y decorative coating of lacquer thereon, and may comprise a cover portion or disc member Ill secured at II to a tubular depending skirt I2. The upper part of the skirt may be corrugated or knurled, as shown atvld, to facilitate gripping the cap during application and removal thereof.

` Below the corrugations |`4,suitable thread means I5 are provided, which are adapted to en the thread means 5 on the container.

VIn order to hide the raw yedge of metal at the lower edge of the skirt, it hask been customary to form a relatively large tubular bead. These beads are not satisfactory because they Aspoil the appearance of the sealed package and interfere with the proper function of the cover cap. .Fur-` thermore, it is not feasible to reduce the size of such beads by present methods of manufacture.v

The present invention Y overcomes the above difficulties by forming the bead in two stages; first by curling the lower edge of the skirt into substantially a bead, and then by rolling the bead into a substantially Vflat wire edge I6, as shown more particularly in Fig. 6.. The edge I'I' of the skirt is curled slightly'inwardly and downwardly, so that it abuts the tubular part of the skirt and is concealed. The portion I8 is folded over the skirt and pressed inwardly, whereby the bead is only substantially twice the thickness of the mabead of the container slightly smaller than the bottom of the cap, thebead is not used ras a stop Y for limiting the downward'movement of the cap and positioning it with respect to a shoulder on the container. l

Fig. 1 illustrates the closure 4 applied to the crown part 2, and the cover cap Stelescoped thereover in the manner in iwhich vthe package is sold to the ultimate consumer. While the parts of the packageare assembled in this relaition, the bead I6 engagesthe zone J substantially gage v2,131,969 ,Y Y

at the middle portion thereof. In Fig. 2, the

parts are shown as they are assembled by the consumer to provide a reseal, after the hermetic seal has been removed. The cover cap is now adapted to be telescopedY further downwardly whereby the bead I6 engages the zone 'l sub'stantially at the lower portion thereof and the .cover part I0 forms a seal on the crown part 2 of the container. If desired, a liner or sealing disc I9 may be placed in the cover cap to providea more effective reseal.

In Fig. 3, a slightly different hermetic closure 2itisshowr1, which comprises a metal disc, preferably of aluminum, having a skirt 2i spun into engagement with the nish 2 of the container. Usually, this type of seal is 'slightly thicker than a crown cork cap, vbut nevertheless, the bead I6 will cooperate; with the shoulder 6 to engage the zone 1 at substantially the upper portion. When the closure 20 is destroyed and removed, the parts of the package may be assembled to provide a reseal, as shown in'Fig. 2.V

In Fig. 7 a modifiedl form of bead shown,l

wherein the lower edge of the skirt of the cap is.r not curled inwardly and downwardly, but the extreme Vedge 23 of the skirt is set slightly inwardly soI that the raw edge of the metal abuts against the tubular part of the skirt. In this manner an attractive bead or flat wire edge is provided from two, thicknesses of metal pressed against each other.:

The new method-of making the` caps of( the` present invention is illustratedV more particularlyV` in Figs. 4 and. 5. Usually,v the tubular skirt I 2 Y is formed on a suitable device, commonly known as a horn. After leaving the horn, the skirt members are delivered to a turret,ror cylindrical member 25, adapted tovpresentv the Ycap skirts or bodies to an assembling mechanism which se-A cures the top portions or Vcover disc I0 thereto by providing a seam II in the customary manner. The turret is preferably provided with a suitable arcuate groove, as shown at 26 herein, adaptedv to curl the lower edge of the skirt outwardly and upwardly when the cap is presented to a bumping mechanism, of which member 21 is shown The bumping mechanism preferably herein. moves vthe tubular skirt axially upon the turret,

formingv an enlarged tubular bead by curling upv the lower edge ,of the cap.

After ,the caps are removed from the turret, they-are deliveredv to a suitable'rolling device, such as shown in Fig. 5, for forming screw threads, or other container engaging means,- and corrugations in the skirt of the cap, Preferably, the inner roller 30 and an outer rollerV 3 I., mountedYupon suitable shafts A32 and 33 respectively, for forming the threads, are provided withcorresponding surfaces 40 and 4I to engage the curled bead portion and exert radial inwardv pressure thereon to compress theskirt and the shape of the bead I6,as shown in Figs. 6 or 7. Thesesurfaces 40 and 4I are effective upon the cap skirt during the formation of the threads 5 and corrugations I4, and complete the formation of the bead during the threading operation.

It will, of course, be understood that the present inventionvmayalso be applied to closures formed of a vsingle piece of metal, whereinthe cover part and skirt are integral. Such clodevice which forms a flat wire edge and container engaging means. Y L

In forming thesealed package shownfherein, the hermetic closure 4 or 20 is sealed'ruponjthe crown part 2 of the container by a suitable cap applying mechanism. The cover cap 9 is then placed over the hermetic closure and is screwed upon the threads of the container until the underside of the cover part I0, or the sealing liner i9, abuts against the top part lof the hermetic closure. When the parts of the closure are assembled in this relation, the bead I6 will engage or coincide with the cylindrical portion 1 of the shoulder E.

It will be seen that the present invention provides a new and novel cap and a simple and inexpensive method of making. The wire edge is inccnspicuous and enhances the appearance of the package. Likewise the raw edge of the metal is concealed and will not oorrode. The shoulder on the container cooperates with the wire bead oi the cap, whereby the bead engages the cylindrical zone independently of the presence of the hermetic closure. In this manner, the cover caps also provide an eiective reseal in every instance. The parts of the package are rugged in construction and capable of withstanding any rough usage to which they may be subjected.

As various changes may be made in the form, construction and arrangement of parts without departing from the spirit and scope of the invention and without sacricing its advantages, it is to be understood that all matter herein is to be interpreted as illustrative and not in a limiting sense.

I-Iaving thus described my invention, I claim:

l. In a sealed package, the combination of a container having cap engaging means thereon and a bead having a substantially cylindrical cap engaging portion, a closure cap having means in the skirt thereof for engaging said means upon said container, and a flat wire bead at the lower edge of the skirt telescoped over and engaging said bead on the container.

2. In a sealed package, the combination of a container having cap engaging means thereon, a substantially cylindrical bead below said means, a member sealed upon the mouth of said container to provide a substantially hermetic seal, a closure cap having means in the skirt thereof for engaging said means upon said container, and a flat wire bead at the lower edge of the skirt for engaging said cylindrical bead on the container before and after said sealed member is removed from the mouth of the container.

3. In a sealed package, the combination of a container, a closure sealed to the upper end of the container, a cover cap extending over said closure and having a rolled edge at the bottom thereof; said rolled ed'ge being flattened to decrease the external diameter of the bottom of the cap, and a bead on said container adjacent the bottom of said cover cap, said bead being re1- atively wide and substantially cylindrical, the maximum diameter of the bead being slightly less than the diameter of the bottom of the cap to permit the bottom of the cap to be telescoped varying distances over the bead.

4. In a sealed package, the combination of a container adapted to receive a hermetic sealing cap and aY cover cap, a hermetic sealing cap secured to the mouth of said container, a cover cap telescoped about the upper end of said container and said sealing cap, an annular bead on said container having a cylindrical zone of a diameter substantially equal to the inner diameter of the bottom of said cover cap adapted to permit the bottom of said cover cap to be telescoped over and engage said bead, said cylindrical zone being of greater width than the vertical thickness of the hermetic sealing cap at a portion extending across the mouth of the container.

5. In a sealed package, the combination of a container having a nish adapted to accommodate a sealing cap and a screw-threaded cover cap, a sealing cap on the end of the container having a sealing liner of substantial thickness therein, a cover cap telescoped about the sealing cap having screw threads in the skirt thereof adapted to mate with threads on the container, said cover cap having a reinforced lower edge form of a flattened doubled-back portion of the skirt, and a bead on the container adjacent the bottom of the cover cap adapted to receive the reinforced-edge of the cap, said bead having an annular cylindrical zone of substantial width and having a diameter slightly smaller than the internal diameter of the lower edge of the cap to permit the lower edge of the cap to be telescoped over it, said cylindrical Zone being of greater width than the reinforced edge and the thick-l ness of the sealing liner, whereby, when the sealing cap is removed, the lower edge of the cover cap may extend down further over the cylindrical zone of the bead without impairing the appearance of the package.

ABR'AI-IAM PODEL.

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