US2184712A - Container - Google Patents

Description

Dec. 26, 1939. E. w. FLE-Issu?` comunas Filed Aug. :51. 193s Ov7/44H02 N0..

w. Flers o@ Patented Dec. l26, 1939 UNITED Vs'rl.l\'rif:vs PATENT oFFlcE 8 Claims.

This -invention relates to containers made from paper, rmillboard, and-the like, and more particularly collapsible tubes, for liquid or pasty masses. The hitherto known tubes and other containers for liquid or pasty substances, made from paper, millboard, Cellophane, and the like materials consist as a rule of a plurality -of parts, since the tapering in of thebody or skirt portion of the tube or bottle to form a neck can l0 hardly be produced without the use of special transition or neck pieces. Such superposed or tted-on transition elements not only add to the cost of manufacturing the container but are also apt to become dislodged, moreparticularly in the case of collapsible tubes from which pasty substances are extruded, and thus render the container useless. Hence the attempt has been -made to produce tubes and similar containers for liquid and pasty masses, together with the neck portionA from a single piece of paper, millboard, or the like, by compressing the material spirallyv to form the neck, so-that fan-'shaped pleats are formed which may then bewstuc'k to- A `gether so thtthey lie at. The -pressure ex- 26 erted in extruding pasty substances from such containers'tends, however, to tear the shell ofv the container 'at these folds or pleats, with the result that the container becomes useless.

p In accordance with the invention, collapsible $0 tubes and other containers for liquid and pasty masses made from paper, millboard, and the like materials having a neck formed in one piece with the body or skirt of the container areymanufactured without twisting, by tapering in the body of the container, in a manner `which ensures that the nished container will withstand any ordinary strain, Athe essential feature being that the tapered-in neck is provided with a ring which holds the latter in shape. This ring thus holds- 40 together the contractedportion at the transition from the-body or skirt of the container to the neck proper and alsothis neck itself, so that sure exerted for the purpose of extruding the contents. This ring,which may^be made from any suitable resistant material such as metal,"

artiiicial horn, synthetic resin, cardboard, or the 50 like, may also at the sam'e time serve as a packing for the closure cap to be applied to the outer end of the neck. In this manner hardening of any-ofthe contents lof the tube which may find its way into the screw threads between the lneck 56 of the tube and the closure cap is eiiectually In Austria January 1, 1936 prevented, and with it the objectionable sticking together of these two parts which is otherwise apt to occur. The tube shell, that is to say the skirt portion and the neck portion, are formed in any desired manner, for example by wrapping paper, Cellophane, millboard, orthe like strips Apr plies, and if desired rendered gasor liquidtight by coating with varnish, fabricVvCellophanei Ametal foil, or the like. The shell is hesive. Screw-threading or any other suitable closure element is tted in any desired manner to the neck of the tube, or pressed or cutin the material of the tube neck itself. It is also .possible to provide a thread for a. screwclosure cap on the smooth tube or container neck made from any desired material, by helically winding Wire around the neck and securing it in position by overlaylng it with a covering which is fluidtight and capable of adapting itself to the Vwire helix.

In further development of the invention it is also possible to t on to the neck a cap .carrying the screw thread or other securing means forthe closure element.` In this case the cap may take' the place'fof the ring for holding the reduced andneck portions of the tube together or bevemployed in cnjunction with this ring; the cap and ring may also be made as a single unit Jfrom the same material. The cap carrying 'a closure element may also be Asecured to Athe body ofl the container by means of indentations, Irecesses, ribs, or in any'other suitable manner, and if desired,for the purpose of still further improving the adhesion,` these parts may be stuck together, for example by means .of 'a resin solution. To obtain still greater security of attachment the cap may also be provided with a collar portion which overlaps the upper or shoulder portion of the container, and which is likewise secured to the body of the container by means of an adhesive or of suitable interlocking elements such as ribs, projections like the teeth of a grater or the like` The cap may also be provided with an extension which reenters and linesl the neck of the container, 'an arrangement which not only ensures very reliable attachment -of the cap to the bdyof the container but also at the same time provides a particularly neat and smooth outlet for the contents of the container or tube'. Indentations or the like may be provided in this case also for the purpose of still further securing the. cap in position and preventing the same from turning. The rel-entrant extension on the neck of the constuckv with the aid of wateror oil-proof ad- Y tainer may also be of greater length than the neck itself, the additional length being divided up into iiaps which may be expanded, with the aid. of a suitable instrument, so that they t against the inside surface of the shouldered 'portion of the body of the container and thus lock the closure in place, so that it can not be torn away from the container body. At the sanie time, in orderv still further to increase the security of attachment, the cap may again be provided with a collar portion fitting overthe outside of the shouldered portion of the body of the container, so that the cap grips the said shoyll dered portion from both sides. The collar portion and the inside flaps of the cap may then be provided with corresponding indentations or prominences engaging similarelernents on the wall of the container.

Instead of providing the cap with external screw-threading it is also possible to provide female threading on the re-entrant extension lining the neck of the container, for the reception of a screw stopper as closure member. .In many ca ses it may be desirable to make the cap of an outerand an inner portion, and to secure these two parts to the neck oi the container in any desired manner, for instanceby providing a screw thread on the part lining the neck, for engiagement by threading provided on `the outer The two parts of the cap may also be fashioned after the manner o1" the known two-part eyelets which are connected together by inter-engagement and rolling or turning-over of the one part.

This form of attachment is mainly suitable for A collapsible tubes which are so designed that it is ,possible to get at both sides of the neck portion with the tools required for fitting and spreading these eyelet-like parts. l Instead of making the closure caps, which may `consist of metal or other suitable material such as for example synthetic resin or the like, sepa- A rately and independently, andsubsequently iltting them to the neck of the container,` these parts may also jbe formed in situ on the neck oi the container from plastic setting masses; such as for example synthetic resin or the like. 'Instead of 'plastic masses or compositions there may als cularly for collapsible tubes, in accordance with" the invention, may also be producedby-pressing on to the neck oi.' the container a ring of metal or other material for-the formation .of the cap. Simultaneously with the pressing ono! this ringl there may also be formed the screw threading, and if desired also the beading which overlaps theendoitheneck. In the case of the forms of construction in which the neck is clasped from` both sides by? the cap, or in which a collar portion isl provided i'r the attachment of the cap to the body of the container, the neck portion'may also be suitably shortened or even dispensed with altogether.

Several forms-ot construction, and modifica-1 tionswtherecf, embodying the principle of the inf vention, are shown by way of example inthe accompanying drawing in which like parts are designated by like reference numerals throughout, and in which: y Fig. '1 shows, in longitudinal section, the neck end portion of a collapsible tube constructed in l accordance with the invention.

Fig. 2 is a modication illustrated in Fig. 1.

Figs. 3, 3a, 3b and 3c show \diagrammatically of the invention as several cross-sectional shapes for the outletaperture of the tube` Figs. l2, 13' and 13a show further forms of the invention as illustrated in Figs. 9 and l0.

u Referring to Fig. 1 ofthe drawing, i denotes the body of the container made from paper, millboard, or the like, which' may or may not be coated with metal 4foil Y`or be made from painted or otherwise coated and pressed material. The transition from the skirt of the tube to the neck of reduced section is formed by the conical portion 2 having radial inwardly projecting ribs 2. The spreading of the tapered-in neck of the tube is prevented by the provision of a ring 3 made' from wood, metal, galalith-millboard, paper, or the like. 4 denotes an impressed or cut-in screwthread. 'I'his thread may he molded simultaneously-with the manufacturing oi.' the tube, and then coated or impregnated with a mass or composition which sets or hardens. For the purpose of' increasing the strength of the neck and thread `there is provided a re-entrant portion 5 (Fig. 1).

Instead of this .re-entrant portion 5 'there may also be glued, clamped, or molded in, as shown in Fig. 2, a liner 6 made from woodmillboard, paper, metaLgalalith, or the like, having various proles, as s hown in Figs. 3, 3a, 3b and 3c to determine the ,cross-sectional shape of the column of material extruded from the tube when in use.

Fig. 4 shows, in section, the-neck of a bottle or tube to the smooth'neck portion 'I of which,

a wire helix 8 which is held in place by a covering of any material which adapts itself tol the turns-of the wire and adheres to the smooth neck 1, for instance paper impregnated to resist the material contained in the tube. The closure cap I0 is vprovided'with the femalethread for engagement by the wire helix I. A

Figs. 5-13 show closuresl with caps mounted on the tube or container neck as. carriers for the vscrew threading -`or other closure elements. v

. .The tube or container body- I (Fig. 5), made forexam'ple by winding from a plurality of layers made from any desired material, there is applied I of paper, is suitably conically tapered a't the upper end where .it mergesin Vtheneck 1. 0n

Ato this neck 1 there is ntted a cap Il of metal,

with the female threading on a closure cap which is not shown in the drawing. The 'cap or ring II is secured'in position on the neck l either by being merely pressed on or by being stuck thereto with the ,aid of a suitable adhesive.

In the form of construction shown in Fig. 6 the flared portion of the cap or ring II is provided with snags I3 which penetratea into the material of the body of the tube and thus anchor the ring in position and prevent it from becoming rotated relatively to the body of the' tube.

dinal ribs orindentations I6.

Similar ribs are employed in the form of construction shown in longitudinal and intransverse sections in Figs. 11 and 11a, respectfully, in Whichl the inwardly extended cap or ring II is provided ,with inwardly extended grooves I1.

' Fig. 9 shows a form of cap or -ring II which is provided with an extension I8 lining the interior of the neck 1. This form may also if desired be provided with a collar portion I4.

A similar form of construction is shown in -Fig. 10, in which the cap or ring II is provided with an external collar portion I9, while the extension I8 is provided with aps 28 which bear against the inside of the wall 2 of the container. Corresponding indentations 2| and prominences 22 on the collar portion I9 and aps 20 serve to clinch the ring member on to the body'of the container, so that the neck l may be shortened u\'\or even dispensedwith altogether.

` Fig. 12 shows a further modification, in which the cap -or ring member II isvprovided with any desired form of clinching projections instead of with screw-threading, while the extension I8 is provided with female screw threading 24 for the reception of a screw stopper as closure member proner. The clinchin' g'projections are denoted by Fig. lshows a further form of construction in which the closure is formed of two separate parts, namely a cylindrical threaded part 25 and an inner likewise cylindrical part 26, which parts are tted one withinthe other in the manner of two-part eyelets and united together at 21 by rolling or beading. Provided the ilared extension 28 on the part 2S be of suitable size the neck l of the tube may be partly or entirely dispensed with in this form of construction also. Instead of the threaded sleeve 25 there also emi n 3 ployed a wire helix 25a, (see Fig. 13a) the latter being supported against the conically tapered rtion of the tube or against a collar piece' tted thereto.

I claim: f 1. In a 'container made from material of the nature of paper, millboard, andthe like of the type having a neck formed in one piece with the body, at least two annular members tted over the said neck cooperating with each other and with the neck to keep the neck and the upper of said annular members serving 'as a packing for 'aclosure member. Y

2. A container as claimed in claim 1, in Vwhich one of saidannular members consists of a helix of part of the body of the container in shape, one

wire applied to the smooth exterior of the said neck and secured thereto by means of a covering of deformable fluid-tight material.

3. A container as claimed in claim 1, in which` the neck of the containerby inter-engagement.

5. In a container made from material of the nature of paper and the like, having a neck formed integral with the body, a reentrant extension formed integral with said neck, an annular member i'lttedy over said neck and adapted to retain the neck and the upper part of the body of the container in shape, and said member being formed to serve as a packing for a closure member.

6. A container as claimed in claim 1, in which the annular members consist of an outer helically shaped member and an inner liner, said helically shaped member and liner being secured together and to the neck of the container by a rolled over extension formed on said liner and adapted to securely engage said annular members.

7. A container as claimed in claim 1, in which one said annular member consists of a helix of wire secured to the exterior of said neck.

8. A dispensing tube made from material of the nature of paper, millboard and the like comprising a neck and shoulder integral with the tube body and formed of radially pressed folds of said material, and an annular member iltted over the said neck and adapted to keep the neck and the upper part of the body of the container in shape, and at the same time to serve as a packing for a closure member.

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