US1910378A - Container and closure therefor - Google Patents

Description

May 23, 1933. J, P, BURKE CONTAINER AND cLosURE THEREFOR Filed oci. 23, 1931 INVENTOR Jan-LE s F. Burke ATToRNEY l BY l Patented May 23, 1933 UNITED STATES PATENT oFFlcE JAMES P. BURKE, F WAYNE, NEW JERSEY, ASSIGNOR T0 KEPT-KAPT, INC., 0F

KNOXVILLE, TENNESSEE, A. GORPORATION OF DELAWARE CONTAINER AND CLOS'URE THEBEFOR Application filed October 23, 1931. Serial N0. 570,741.

This invention relatesV to containers and closures therefor, having particular reference to collapsible tubes.

One object of the invention is to provide o an improved mounting of a rotatable closure on a tubular element such that the closure is reliably permanently mounted on said element and has continuous sealing coaction to prevent leakage between the element and closure.

Another object of the invention is the provision of a rotary. closure on the neck portion of a collapsible tube, and having improved stop engagement therewith. 'i5 Another object of the invention is to furn ish improved means for spinning sleeved relatively rotatable tubular devices into engagement with each other, and particularly to interiorly press. an outward locking projection portion, such as an annular ridge in the inner device, and/or spinning the inner device into snug seating coaction with the outer device for affordinga liquid tight seatinfor a valve closure or the like.

nother object of the invention is to provide an improved method of making or interengaging a plurality of relatively rotatable elements suchas a tubular element and a valve cap thereon, whereby the element is pressed or spun into snug seating contact with the cap and/or an outward projecting annular portion formed in the element for snugly engaging throughout in a corresponding recess or undercut in the cap. whereby to afford a liquid tight locking engagement for the cap.

A fur-ther object of the invention is to produce a simplified closure in an inexpensive manner, by easily operable means, so as to obtain a durable, reliable and efficient device.

Other objects and advantages of the invention will become apparent as the specilication proceeds. v

With the aforesaid objects in view, the invention consists in the novel combinations and arrangements of parts hereinafter described in their preferred embodiments, pointed out in the subjoined claims, and illustrated on the annexed drawing, wherein like parts are designated by the same reference characters throughout the several views.

In the drawing:

Figure 1 is a view in elevation showing a device embodying the invention.

Fig. 2 is a fragmentary view in elevation of the device taken at an angle to Fig. 1.

Fig. 3 isYV a sectional View taken on line 3 3 of Fig. 2.

Fig. 4 is an enlarged sectional view of the 6o device.

Fig. 5 is a sectional view showing a step in the method of making the device.

Fig. 6 is a view with parts in section showing a subsequent step in the method of makc5 ing the device, and the apparatus employed, with parts removed. y

Fig. 7 is a sectional view taken on line 7-7 of Fig. 6.

Fig. 8 is a still further enlarged sectional Ko view showing the device in course of manufacture.

The advantages of the invention' as here outlined are best realized when all of its features and instrumentalities are combined 2K5 in one and the same structure, but, useful devices may be produced embodying less than the whole.

It will be obvious to those skilled in the art to which this invention appertains, that the same may be incorporated in several different constructions. The accompanying drawing, therefore, is submitted as showing the preferred exemplifcation of the invention.

It has heretofore' been known to provide rotatable valve closures for collapsible tubes, with the closures held on by a detent or sprung over a suitable projection on the tube. In such devices, auxiliary means was found necessary to prevent occurrence of .leakage between the closure and the part of the tube sleeved therein, as, for exam le, special resilient inserts at the valve opening, or cams for drawing the closure snugly against the tube'part in the closed position. By my invention these features are eliminated, whereby `the device may be much more cheaply made, in quantity production, and without permitting leakage, and so as to be substantially liquidtight for the materials handled in the collapsible tubes.

Generally described, I provide a'collapsible tube having a substantially cylindrical portion of reduced diameter provided with a closed hemis herical end. Upon this is placed a cap o similar contour and having an internal annular coaxial groove.l The tube part is mteriorly spun to force a ridge into said groove, the expansion causing the tube part to uniformly snugly seat inl the cap in a liquid ,tight manner. Simultaneously the hemispherical end may also be spun or expanded to snu ly contact the inside face of the cap to a orda tight valve seat at the outlet openings that-may be provided at a suitable step in the manufacture of the device. Thus in 'one operation the cap is permanently rotatably secured to the collapsible tube and caused toy be individually tted thereto in a tight manner, eliminating the effects of any possible variations in size or form of the cap or tube or both, in

course of their separate manufacture, and due to the different natures of the materials employed. l

Referring in detail to the drawing, 10 den'otes a device embodying -the' invention.

y'The same may include a tubular device such as a collapsible container 11 having apneck portion 12 of reduced diameter. The container and its neck portion maybe of any conventional construction and, may consist of a soft ductile or pliable metal. Preferably the neck portion is of substantially cy- -lindrical form, and may .terminate in a portion 13 of reducing size, of taper form, or

merely hemispherical as shown. At the base of the neck portion there may be a stop member 14 which may be integral therewith.

Rotatably mounted on the tubular or neck portion 12 there may be a coacting tubular device such as a cap 15. This may be relatively rigid and made of any material, such :as metal, bakelite, or other relatively strong or non ductile material. Interiorly thecap ts the neck portion snugly. To retain the vcap on the neclportiom'the cap may have an internal preformed undercut or annular groove 16 into which a corresponding annulan flange or ridge 17 of the neck portion may be spun or depressed for a snugI and' somewhat resilient engagement. The location of this line of engagement may be intermediate of the ends of the closure 15, and preferably in suitable proximity to the end 13 which may act as a re-'enforcement for the ridge 17. In. thisl mannerfmoreoverLthe closure may be made with a minimum length. The groove and ridge engagement-` also serves to retain the curved end I8 of the cap in snug contact with the corresponding part 13. It will be noted that theridge and groove have-,a plurality of curves forming substantially a U in shape to assure a form and ample area of` contact.

The end portion of the neck may have an opening 19 offset from the center, and

the closure may havea corresponding opening' 20 adapted to register therewith. Be-

tween the portions 13 and 18 is the snug valve seating surface 20ct for the openings 19 and 20. At 21, -the closure may be out- .wardly flared from the opening 20.

which 'supplements the seal at the surface 20a.. The latter is likewise rendered snug preferably by outward pressing or spinning of the hemispherical portion13'simultaneously with the formation of the annular projection 17. Thus, not only is any tendency overcome of collapsing the part 1,3 downward due to the outward pressure at 17, but the part 13 is actually positively outwardly pressed for an individual fit with the cap. Y

In manufacturing the device, the cap may be initially provided with `the opening 420 bounded by an angular edge 25 terminating in the flare 21. A tubular neck portion 12, having a uniform side wall 26 is placed therein. -Then the neck portion is interiorly spherical part 13 for a good valve seat with the corresponding cappart 18. -The opening 19 may have been previously formed or may -now be drilled, and the opening 20 reamed to eliminate any burr and thereby form the straight edges 27 for the opening 20. f

QA"Any suitable means such as 28 may bey used to eifect the spinning of the neck portion. Thus a tool may be utilized having a head 29 provided'with a centering or taperingend 30 that may be hemispherical and of suitable size .to snugly iit the end of the neck portion. This head may be hollow and may have a laterally projectable element or pin 31 slidably fitted in `'ahole inthe wall thereof. Suitable means'may be provided for actuating the headv and pin. v Thus a spindle 32 may extend into the head and may have means such as atapering end or cone 33 for actuating the .pin by laterall bearing on ahead 34 thereof as a resu t of relatively longitudinal sliding movement of the head 29and the stem 32 or a part thereof. The provisionof the head 34'pre-- vents the element 31 from leaving the head member,

29. To limit the relative movement of the parts 29, 32, the former may have a slot 35 and the latter a pin 36, movabletherealong.- In this manner rotation may be imparted to thehead 29 by the spindle.

Any well known means such as a gear 37 may be utilized for rotating the head 29. Longitudinal pressure on the head may be caused by an end thrust bearing 38 suitably actuated for the purpose. It will be noted that rotary and axial force may be simultaneously applied. Moreover, due to the application of axial pressure on the stem 32, the pin 31 is outwardly projected under a desired force and a pressure simultaneously exerted on the hemispherical end of the neck portion. As the ridge 17 is being formed the pin- 31 moves outward from the head 29, and the stem 32 moves downward while rotating. Hence the neck portion is at the same time expanded laterally.

and longitudinally for a uniforrncontinuous fit with the cap. Since the head 29 substantially lls the neck portion, any co1- lapse of the latter due 'to pressure of the pin 31 at a point, is prevented, nor can the end 13 recede from the end `1 8 of the cap. After the spinning operation is -completed the head 29 maybe ,withdrawm the stem 32 moving upward relatively thereto,.and the pin 31 backing up into its head.

vIn fact, I have foundin actual practice that a Jportion of the neck 12,.such as 39 shown 1n Fig. 8, may in course of the spin ning operation be forced slightly into the opening 2O inthe cap. This. will happen to an imperforate part of the neck that will be adjacent to said opening, and the degree of such projection maybe extremely slight, but sufficient to cause a very tight seal. The position of the part 39 is such that every time the cap is closed, the part 39 comes into registry with the opening 20 of the cap. The base 40 may thereafter be suitably fastened to the device 10.

It will be appreciated that various changes and modifications may be made in the device as shown infthe drawing, and that the same is submitted in an illustrative and not in a limiting sense, the scope of the invention being dened in the following claims.

I claim: y

1. A closure device including a plurality of hollow members, one of the members being journaled upon the other, the members having openings adapted to register with each other, one of the members having an imperforate wall portion bulged into the opening in the other member when openings are out of registry, and the bulged portion being adapted to be sprung out of said opening on causing a relative rotation of the members.

2. A collapsible tubel having a neck member, a cap member journaled on the neck said members having ,openings adapted to be brought into registry with each other .upon relative rotation between said membersthe neck member having anv integral outwardly bulging yielding wall portion constituting a closure adapted to spring into the opening of the cap member upon relativel rotation of said members to bring said openings yinto spaced relation to each other and to spring out of said opening upon different rotation between said members.

v 3. A collapsible-tube having a neckmem` l ber of soft metal, a cap member of'a relatively rigid material, said neck member having an end Wall, said cap member being journaled upon said neck member including the end wall thereof, and an opening at said end Wall, said cap member having an opening adapted to be brought into registry with the opening of the neck member upon rotation of the former., said neck member having a portion having a sllght outward closure bulge at said end wall, located so as to be adapted to releasably spring into-the opening of the neck member when said openings are moved into offset relation to each other, said bulge being fitted to the opening of the cap member. l

4.l A collapsible tube having a neck of yielding material, said neck havin a curved end'wall, a cap of relatively rigi material journaled'upon said end wall, the latter and.

vsaid capI `having-openings adapted to be brought into registry upon relative rotation between end wall and cap, said end Wall having a fitted bulge portion adapted to yieldingly spring into the opening of the cap Y upon relative rotation of the end wall and cap with said openings in spaced relation to each other.

5. A collapsible tube having'a neck provided with an arched end wall of revolution,

openings adaptedto be brought into regisi try upon rotating the 'cap to open position, the end wall being in close engagement with saidcap at said end wall, means rotatably interconnecting said cap and neck to maintain the latter closely seated upon the cap,

and the neck having an integral outwardly bulged closure portion which is curved so as to releasably spring into and out of the cap opening upon rotating the latterintov opening and closing positions. l

6. A collapsible tube neck of soft metal for a rotary closure cap having an eccentric outlet opening, said neck having an opening and an outwardly-formed integral bulge portion spaced from each other' and from the axis of the neck and similarly located with respect to a plane perpendicular to the axis of the neck so that said opening and said bulge portion are alternately in registry with the opening of the closure cap upon f rotation of the latter for opening and tightly closing the cap opening. v

In testimony whereof I afx my signature.

JAMES P. BURKE.

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