US1413654A - Receptacle closure - Google Patents

Description

. R. N. CARVALHO. RECEPT/mui cLosuHE. APPL|CATION`FILED FEB. 4, 1921.

APatented Apr. 25, .1922;

Urro sr PAT Y OFFICE. A

'LESLIE a n'. eAvALHO, OF BROOKLYN, NEW Yoax, AssIeNoa 'ro cLosUnE sEavI-OE OOnA'rION, or BROOKLYN, NEW'YORK, A CORPORATION or NEW YORK.

BECEPTACLE CLOS'URE.

Lama.

ASpeciication of Letters Patent. Patented Apr, 25, 1922,

Application led 4February 4, 1921. Serial No. 442,393.

new and useful Improvements in Receptacle Closures, of which the following is a speciication.,

This invention relates to a receptacle closure and method of manufacture, the same embodying certain features of, and being in the nature of an improvement over, the structures shown and described in my pending applications, Serial No. 300,462, filed May 28, 1919; Serial No. 367,061, filed March 19, 1920, and Serial No. 413,649, filed Se t.2o,192o. y

object of the present improvement is to provide a closure having all of the advantages of the structures shown in said pending applications, and at the same time furnishing a more eflicient means thanany of the previous structures for eecting an air-tight engagement between the closure and the receptacle.

A further object is to so shape the sheet metal portionof the closure that it will furnish means enabling the gasket element to fully and properly perform its'sealing function without likelihood of any portion of the gasket occupying a position between the upper edge ofthe receptacle and the adjacent under surface portion of the arrangements of parts and applicationsofl principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended cla1ms.

In the accompanying drawings which are to be taken as a part of this specification;

and in which I have shown merely a preferred form of embodiment Figure 1 is a side elevational view of4 a portion of a receptacle illustrating a closure applied thereto' constructed in accordance with this invention, part of the view being broken away and shown in vertical section for illustrating the condition of `closure is fu 1y applied.

Abe of an the severaly arts as they appear when the Figure 2 is an enlarged detailed sectional View slmilar to a portion of Fig. 1, but lllustrating the parts of the closure as they appear be ore application `of the closure to a receptacle, and

Figure 3 is a View similarto that seen inv Fig. 2, but showing the condition of the closure asI it appears at one time during its manufacture.

Referring to the drawings for describin in detail the structure whlch is illustrated therein, the reference character L indicates i the receptacle, and the reference character Gr indicates the closure. The receptacle may desired character, butin the instance il ustrated consists simply of an ordinary jelly tumbler.' The upper annular edge surface, as 1,V ofthe receptacle is preferably rounded'somewhat, as indicated, for

facilitating the application of the closure thereto. The outer circumferential surface, as 2, of the receptacle, for engagement by the closure, is preferably smooth and may, if desired, be tapered downwardly and inwardly a slight degree.

The closure G? consists of a single piece of sheet metal shaped to provide what may be termed a body portion?) and an annular marginal bead portion 4. The body portion 3 is ada ted to close the upper end of the receptac e while the bead portion comprises means for receiving and gripping the walls of the receptacle.

The bead 4 consists of an inner upwardly extending wall 5, a top wall 6, an outer downwardly extending wall 7, and an inwardly and upwardly extending wall 8' formed-at the lower edge of wall 7 conlstituting, in' effect, a wire edge internally of wall 7. p

The wall 5 of the bead is adapted to stand within the'op'en end of the receptacle and to lie adjacent to the inner annular surface of the wall -of the receptacle approximately as indicated. v

The wall 6 of the bead is adapted to overlie the upper annular edge of the receptacle.

The wall 7 of the bead is adapted to eX- tend downwardly over the outer surface of lthe Wall of the receptacle.

The wall 8 serves to directlyV engage the `receptacle and may be conveniently referred to as the receptacle gripping flange. By reason of its position relative to the other walls, it is rendered resilient, the degree of resiliency being dependent somewhat Iupon the characterand relative position and size of the Harige and the wall 7.

il ring, orgasket lil, of suitably resilient material, such as rubber compositlon, is positioned within the bead' 4f.

ln order that the important features of this invention may be more readily under' of gra-duallyl decreasingsize upwardly and over the upper edge of the receptacle upwardly into which space the gasket is naturally forced when the closure is applied 'on to the receptacle.

' lt has been found 1n practice that where portions of the gasket material are thus forced upwardl to sealing position over theA upper edge of t e receptacle,the result is not always uniform; that is, at certain points around the circumference of the receptacle a greater bulk of the gasket is forced over the upper edge `of the receptacle than at other points so that a defective seal results.

lt is accordinglyV a prime object of the present invention to provide means. adaptedto prevent any part, or parts, of the gasket material from being forced to sealing position over. the upper edge of the receptacle,

l and onemeans for accomplishing this result. is herein rillustrated to consist of enlarging the bead l at the junction between the walls 6 and 7 so as to form a pocket, as 10, therein, lying just outside of the upper edge ofthe receptacle, into which pocket asuitable part :of the upper annular edge portion of the gasket may find its way when the closure isI forced' down on to the receptacle. The pocket l() is of appropriate size so that it will properly accommodate the mentioned porf tion of the gasket and thereby obviate likelihood of any part of the gasket being forced to sealing position-directly above the edge of the receptacle.

llt is also an important feature of the invention to provide within the bead an annular inset wall portion'll justbeneath the pocket.. This wall portion is formed directly at the lower end of the outer wall ortion, as 12, of the pocket and is rodu'ced preferably by bending in the materlal of the ead so that said wall portions ].1 and l2 stand substantially vertical and practically .ing downwardly upper intente parallel with the radjacent outer surface of lthe receptacle and considerably nearer to the receptacle than the adjacent portion of wall 7 beneath the wall portion 11. ln'bend ing in the material of the bead to providel the wall portion ll, an annular. ledge, or shoulder, 13 is `formed within the bead facand this is of material importance as wil be presently pointed out.

All of the walls are rounded from one to the other so that the exterior of the closure throughout is suitably smooth and attractive.' No parts are present which could in any way injure the hands of an operatorattempting to remove the closure. rllhe only raw edge of metal present is that at the upper edge of the gripping flange 8, and this -is in such a position that the operators hands cannot possibly reach it. lt is also sopositioned 4that it is `entirely outside the receptacle;

that is in a position such that the contents of the receptacle may have no access to it.

rlhe gripping flange 8 may extend continuously and uninterruptedly throughout `the circumference of the closure, vas indicated, or it may be corru ated, as shown in the pending application, erial No. 413,649.

The ring, or gasket, H is indicated in Fig. 3 as it appears 1n its normal condition; that is, before .it is compressed or distorted by the formation of the gripping Hangs- In the manufacture of these closures, the gasket is placed in position within the wall 7 substantially as indicated by' the full lines in Fig. 3, before said wall is turned for forming the gripping flange, and in thus placing the gasket it engages the ledge 13 which prevents it from movin readily further toward the wall 6. 'llhe ledge 18 thus y serves to insure that the gasket will alwa s occupy a given position relative to the Walls 6 and 7 at the timewhen the wall 7 is bent to form the gripping Harige.

ln turning the wall 7 to form the gripping ange the gasket 'is' forced upwardly `made to project inwardly to a position where itv will be positively enga ed by therecep` tacle 'when the cap is applied to the receptacle. A

The position of thegasket, after the formationof the gripping flange, is indicated 4by thejdotted lines in Fig. 3, and in thisigure, aswell as in Fig. 2, it will be seen that said wall portion l1 constitutesa sort of pivot, or ridge, about which the gasket is bert when the closure is applied to a receptac c. Y l

ll@ toward the wall 6. ln this movement the When the closure is manufactured ;y that is, before it is applied to a receptacle, the gripplng Hange incllnes inwardly, as Indi-l cated by the' 'full unes in Fig. 2. In this poi vsition the upper edge of the fiange extends inwardly of the gasket and is adapted when the closure is applied to a receptacle to be forced backwardly, or outwardly, by the re'- ceptacle and to thereby generate a considerable pressure against the receptacle serving to hold the closure applied.

As the closure is bein pressed on to the receptacle, and the gripping fiange is forced outwardly, the upper edge of the receptacle comes into contact with the portion 14 of the gasket. The outward movement of the gripping flange, under pressure from the receptacle has already compressed and squeezed the gasket to some extent between the gripping flange and the wall 7, So that it has been made to practically fill the space within the bead beneath the shoulder 13. The gasket has, at this time, been formed witha shoulder upon itself engaging beneath and against the shoulder 13 serving to prevent, or overcome, the tendency of the gasket to be moved bodily upwardly as the receptacle passes above the upper edge of the gripping flange.

t the same time,`a certain proportion of the lower part of the gasket has been squeezed upwardly to increase the bulk of vgasket material lying4 inside the Awall portion 11. v

As'the closure is forced downwardly, and the receptacle comes into engagement with the portion 14 of the gasket, the portion 14 is `pressed backwardly toward the wall portion 11 and very tightly compressed between said wall 11 and the surface of the gasket.

Then, as the receptacle moves relatively upwardly, it operates to bend the upper portion of the gasket outwardly into'the pocket 10, said pocket being, as before mentioned, capable of accommodating enough of' the gasket material so that practically none of the gasket material will move -to position where it would be squeezed between the wall Gand the upper-edge of the receptacle.

Where desired, a liner, as 15, may be employed, and where employed it may consist of a disk of suitable material placed .within the closure prior to the formation of the gripping fiange. In the instance illustrated,

the disk is of such size that it normally pro-v jects over the upper edge of the gasket'l-I prior to the formation of the gripping flange, as in Fig. 3, it being moved upwardly into the bead by the formation of the gripping flange, as in Fig. 2. In some instances,

the liner may be depended upon to constituteI a seal between the closure and the receptacle,

since when the closure is applied the ma1 ginal portion of the gasket occupies a position Vbetween the closure and the upper and inneredgeof the receptacle. V'The efficiency of this seal, of course, is dependent upon the nature of the lmaterial employed for the liner, land it has been found,.in this connection, that a liner formed of suitably soft paper, coated, or impregnated, with such material as paraffin, or other oily substance, is well adapted to the purpose. When the closure is forced downwardly on to the receptacle, the material of the liner is crushed be considered as a sort of protecting pad to v prevent possible injury to the receptacle from the pressure of wall 5 thereagainst.

The closure, as described, consists of three concentric annular walls, 5, 7 and.8. The wall, or flange, 8 occupies the intermediate position between the walls 5 and 7. and is resilient so that it is capable of movement toward or away from each of saidwalls 5 and 7. It is directly supported by the wall 7 which is also resilient although to a lesser degree than wall 8. The receptacle is held between the walls 5 and 8, .and the Wall 5, in addition to its function of affording a seal forthe receptacle, serves as an labutment assisting the receptacle in resisting the pressure of the wall 8 and the gasket. The -I gasket is held between walls 7 and 8 with its upper portion v'projecting into the space to be occupied by the receptacle. The wall 8 provides a hard metallic surface along which the 'receptacle moves before engaging the gasket. This wall, by its downwardly diverging form, constitutes directing means for directin the receptacle into proper association wlth the closure. During .the operation of applying the closure, the

receptacle is first brought into engagement than the closures constructed as` in said men- `tioned pending applications,v this due pri-. v

marily to the facility afforded for accommodating `the upper annular. portion of the gasket, to avoid .likelihood of movement of portions of the gasket to position directly above the4 edge of the receptacle.

Since the wall portion 11, as above shown, stands to receive land resist the maximum -ing agreater' range of variation in diameter nel;

sealing pressure between the gasket and the closure; that is, since between this `Wall portion and the receptacle occurs the greatest degree of squeezing of the gasket, it is apparent that said wall portion ll may be correctly referred to in the claims hereinafterr as a sealing ridge.

lt should be pointed out that during the application of the Vclosure to a receptacle, the outward movement of.l the gripping flange, under pressure Jfrom the receptacle; that is, from the position shown by ull lines to the position shown by dotted lines in Fig. Q, said flange operates to clamp the lower annular portion of the gasket against the wall 7 and beneath the shoulder ld,y and thus prevents bodil u wardly movement of .the gasket during tlie nal movement ont the closure on to the receptacle.`

llt maybe noted further, in this connection, that although the drawings herein, and particularly Fig. 2, shows the gripping flange 8 shaped so that it normally stands away from the gasket, yet, it desired, it is wholly Within the scope of this invention toso shape said flange that it will normally;

that is, bollore application of the closure .to

' lower annular rest against and hold the ortion ot the gasket in the manner just re erred to.

ln the latter instance, olf course, the bending ot the gripping flange by pressure from thev receptacle will', of course, `further and more securel 1 grip the gasket.

As any c anges could be made in this construction Without departing from the scope of the invention as ydeined in the following claims, it is intended that all matthe receptacle,

, ter contained in the above description, or

shown in the accompanying drawmgs, shall be interpreted as illustratlve only and not in a limiting sense;`

From one point of view, the invention K herein, and, particularly when the grippinea to hold the flange 8 is' bent, as last above mentione may be considered to comprise an annuler marginal flange, the lower portion ot which is shaped to provide a beadupon said dange .within which jis received and held the lower annular edge portion of the aslret so as l gasket from bo' ily upward movement during' the process o' applying '1 the closure to a receptacle.`v llt is im ortant lib to note in this connection that the eed is Aso constructed that it will be caused to take a irmer grip upon the gasket whenever it is called into use for retaining the vgasket against dislodgement bythe relatively upward movement of a receptacle into the closure. And also, thatthe larger the diemeter of the receptacle, and consequently the greater the` drag upon the gasket, then the tighterwill be the grip or thelbead upon i the asket to overcome the drag.

aving thusdescribed my invention, what :pressedh n u and said ead providing a shoulder therein Lorente annular sealin ridge formed thereon projecting inward y in a osition above said pocket, a gasket arranged within said pocket, having an annular receptacle en aging part projecting above the upper edge or the gripping flange, said part being adapted when the closure is applied to a receptacle 'to occupy a. position between said sealing rid a and the outer surface of" the receptacle,

anaid grip ing dange being bendable and being ada ted:b when applied toa receptacle to 'be bent y en, agement with the receptacle for partially c osing said pocket and for thereby squeezing a ,portion of the .gasket upwardly from said pocket and into said hrst mentioned part, tor the vpurpose set 1lorth. y u

2. A receptacle closure having a marginal portion adapted to overlie anverteriorportion of' a receptacle, said marginal portion 1 having a receptacle Agripping llange formed thereon bent inward y and upwardly therefrom to provide an annular p cket between said grip ing dange and said arginal portion, sai marginal portion having also an annular sealin ridge formed. thereon projecting inwar ly in a position above said pocket, a gaslret arranged within said pocket,

avingan annular receptacle engaging part projecting above the upper edge oit the gripping ilange, said part eing adapted when the closure is applied to a rece tacle to occupy a position between sai sealing rid e and the outer surface of the receptac e, and said grippin yflange being bendable and being adapt/e when ap liedto a receptacle tov be bent for partial y cl said pocket and `lor thereby squeezing a portion of the on, the bead providing a portion resilient for engaging the outer annular surface ot a reeettacle, a y portion in position to engage the receptacle, said resilient portion being positioned to the reeeptmle against the gasket,

to obstruct excessive displace; the gaslret when the gasket is pressed upon by said resilient portion.'

positioned dll lith

gasket upwardly from said .pocket and into said .rst mentioned part,

gasket-held by said resilient n 4. A receptacle closure comprising a body part having an annular bead formed there ion, the bead providing a portion resilient lfor engaging the outer annular surface of a receptacle,'a gasket held by said resilient =portion in position to engage the re tacle, said resilient portion being positione to be pressed by the receptacle against the gasket, and said bead providing a shoulder therein positioned to obstruct excessive displacement of the gasket when the gasket is pressed upon by said resilient portion, and said bead providing also an annular sealing ridge projecting inwardly thereof toward the receptacle 1n a position above said shoulder. 15

In testimony whereof l aiiix my signature in the presence of two witnesses.

LESLIE R.l N. CRVALHO.

Witnesses: I

L. GEssFoRn HANDY,- FRANK M. DALRYMPLE.

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