US1972277A

US1972277A - Sealed package

Info

Publication number: US1972277A
Application number: US321897A
Authority: US
Inventors: Scofield Edgar
Original assignee: Anchor Cap and Closure Corp
Current assignee: Anchor Cap and Closure Corp
Priority date: 1928-11-26
Filing date: 1928-11-26
Publication date: 1934-09-04
Anticipated expiration: 1951-09-04

Description

67 NVENTQR qflezd BY M A I ORNEY E. SCOFIELD SEALED PACKAGE Filed Nov. 2a, 1928 SePt- 1934.

Patented Sept. 4, 1934 SEALED PACKAGE I; Edgar Scofield New .York, N Y1, assignor to Anchor Cap. & Closure Corporation,

Long

,Island City, N.pY.;'a corporation of New York 1 Application November gs, 1923; Serial No. 321,897 I .'12Claims.-' ((1215-40 The presentinvention relates to thesealing art and more particularly to a sealed package and the parts thereof. 7 j

Many products are very ditficult to keep and have to behermetically sealed to, keep out germs; some of them are sealed under a partial vacuum in order to secure best results. In the shipment of the containers after the sealing operation, and in handling them, they constantly bump against each other, against the partitions in the cases and against other extraneous objects. Frequent ly this impairs the seal and breaks the vacuum. Certain seals at the=present time have what may be called a cover cap, which is generally a small disc fitting over the upper end of the container under the regular closure. The cover cap may be used for covering thecontainer during consumption after theregular cap is removed. In some cases, these cover caps are secured in position by screw bands, in other cases by bands fitting over the outer edge of the cap and secured to the container through the intermediation of -a gasket.- The present practice is to ship the cover caps separately and to apply them separately from the regular closures. In some cases, thecover caps andclosure caps are shown asjsembled by means of notches and projections registering for the assembling operation. The assembly of such articles requiresconsiderable manual work to position the cover cap withrespect: to the closure cap in order. to assemble them. a "-The present'invention aims-to eliminate the objections, to improve structures such-as those described above and to provide a covercap and closure cap which co-operatewith each. otherto term a better seal than those heretofore, and which will resist the accidental jars andknocks without impairment of the seala The present invention also contemplates the provisions. of a cover cap which may be readily assembled. with cl osure;caps for shipping. sealing and other-desirable operations. p An object of" the invention is to provide asecure hermetic seal adapted to maintaina vacuum and adapted also to resist jars and accidental knocks without-impairment of theseal or of the vacuum. V. *Another object of the invention is to-provide a double seal by co-operation between a closure cap and. a cover cap throughthe intermediation eta single gasket. I

Another object of the invention is to provide a'c'over cap adapted to be assembled with a closure cap and shipped andapplied in assembled J 'Fig. 1 is a sectional'view, with parts in state,;andadapted also to be sealed to the con: tainer toprevent contamination of the exterior thereof. 1 5

Another object of the. invention is to provide a cover cap adapted to fit into a-closure capi'and to be held vtherein through 1 the intermediation of the gasket in the closure cap. v Other and furtherobjects of the invention will be obvious'upon an understanding. of the -illus,.- trated embodiment abouttobe described or will be-indicated inthe appended claims, and;vari- 011s advantages not referred to herein'will occur to one skilled in the art .upon employmentiof the invention inpractice. v 1,.

- A preferred. embodiment'of. the inventiorrhas been chosen for'purposes of illustration and de scription and is shown in the accompanying draw-'- ing, wherein; j w

elevation, of a cover cap assembled with a closure cap on a container prior'to the sealing operation Fig. 2.is:-a sectional view,with-parts in elevation, illustratingthestructure shown in Fig-=1 sealed tora container;

7 Fig.3 'is a fragmentarysectional view ofaJdit F ferent form of construction: and

i Fig; 4 'is a fragmentarysectional viewi'illus g inwardly to form the. lowerside of the head? A cover cap. '7 nests in the closure capgwith the icover portion 8 adjacent the cover portion 'of theiclosure capand with the depending flange9 adjacent the skirt of the closurecap. The lower edgeiof :the cover capis .turnedoutwardly to fit Eunder the uppersideof the bead 5, the portion 9'of the cover capbeingiof sufiicient length to retain the ,outer'edge 10 of the covercap in the upperipart of the bead. Thexgasket 11 is assembled'into'the .bead Spandheld-therein by means of the flange-16 on the closurnapswr'lhe upper side ofithe zgaske't rests against theioutwardly flariednedge;-of:the cover cap tohold-thecover cap in positions;

Sincethe'; gaskets preferably are made iot'vul :canized rubber, their resiliency is such that the cover can isheldin position and may bei'shipped,

handled a and sealed without: becoming idisass'embled. In fact the inclination Of; theLSide ,of :.the skirt may be sufficient to permit the caps "to .stack one'up'on another, thelower edgefi raising above the bead of an adjoining cap: -W-hen placedin a sealing machine the-stacked-caps may bei fefd be made in various ways, preferably the bead is compressed into the shape shown in-Fig. 2, which will press the gasket firmlyagainst the container and firmly against the outwardly flared edge 10 of the cover cap. The deformation'of the bead forming the seal and the mechanism for con-.

stricting the bead may be similar to that'de ber 28, 1926. g

In Fig. 3 another form of construction is shown wherein the container has a cylindrical surface 15 in line with the gasket and also an annular surface 16 having a smaller diameter separated from the surface 15 by a shoulder 17. The outer flare atthe lower edge of the cover cap is omitted, per-' mitting the flange 18 of the cover cap to be substantially cylindrical or flared outward slightly to facilitate application.

. The cover up fits snugly over the smaller sur face 16 of the container and substantially abuts the shoulder 17. The gasket is squeezed against the container by deformation of the bead 5, the

upper part of the gasket engaging the flange of the cover cap. Part of the gasket is squeezed during the sealing operation into the small space between the lower edge of the cover cap and the shoulder 1'1. In this way, a very secure seal is formed because the wide zone of engagement between the gasket and the cylindrical surface 15 provides a secure seal. Inaddition', the upper part of the gasket, in fitting between the lower edge of the cover cap and the shoulder 17, seals the latter to the container. The closure cap and the cover cap co-operate to form a double seal through the intermediation of a single gasket.

In Fig. 4 the upper edge of the surface 15 onthe container ends in an outwardly extending shoulder 19 which gives greater holding power to the seal between the gasket '11 and the closure cap. The cover portion of the cover cap conforms approximately to the upper edge of the container, the lower partof the cover being pressed'into the container as shown at 20.

provided in which a double seal is formed through the intermediation of a single gasket. The seal is better able to withstand the rough usage to which it may be subjected without impairment of the hermetic seal or impairment of the partial vacuum formed in the container. The parts are simple in construction, may be shipped, assembled andrsealed with a minimum of trouble and cost. The cover cap not only provides a more efifective seal, but'it furnishes a convenient cover for the contents of the package during consimiption, it being necessary with most types of closures to mar or substantially destroy them in removing. It will be understood'that the cover cap herein is not marred or spoiled during the o ening of the seal. Further, the cover cap being sealed to the container, there is no chance ot the contents seeping around the edge of the cap and soiling the exterior thereof.

As various changes may be made in the form, construction and arrangement of theparts in the above embodiment withoutdeparting from the spirit of the invention, it is to be understood that all matter herein is to be interpreted as illusnative and not in a limiting sense.

scribed in my Patent No. 1,611,955 dated Decem-x said closure cap and .also with said cover cap.

fli-Aseald package comprising a container, a cover cap provided with a depending skirt, a closure capfitting over said cover cap and com- It' will be seen that a construction has been Having thus described my invention, I claim: 1. A sealed package comprising a container, a closure cap having a bead in the skirt thereof, a gasket in said bead, and a cover cap having its lower edge extending downwardly over the con- 30 .tainer and outwardly over said gasket into said beaCL- I, I i

=2. A sealed package comprising' a container, a

closurecap having a bead in the skirt thereof, a

gasket in said bead, and a cover cap provided with a skirt portion having its lower edge extendingaoutwardly over said gasket into said head, Said bead being compressed to squeeze said gasket against-said container to form a seal with pletelyienclosing it, an annular gasket in the skirt of said closure cap fitting against the lower edge of the skirt of the cover-ap'jsaid skirt being reformed to force the entire inner periphery of the gasket against the containerto forma? seal between the skirtof said cover cap=and thecontainer and between said-J {closure cap "andthe container-, therebyto provide a double seal'onthe container through the intermediation of 'a singl'e gasket. w 4. As an article orimanu-ifactura a-clos'urefcap comprising a cover portion; a depending skirt having a bead thereirra gasket in s'aidbead, and a cover cap nested in' said closure cap; said 'co'v'er cap being provided with a skirt'portioniiared outwardly at the 1ower.edgethere'ot,' and extending between said gasket'arid-the upper' sideiof H0 said bead. 1 5. As an article of manufacture, a closure. cap comprising a coverportion, a depending skirt having a bead tlie'rein", '-the lower edge ofthe closure. cap being turned" inwardly to formthe Q15 lower side of said'bead,*a'-cover*cap nested in said closure cap,the outer periphery ofsa'id cover cap extending into said bead'and being'smaller in diameter than theinternal diameter'of the lower edge of the closure; capyand a gasketdn said bead abutting against the lower periphery of said cover cap for providing a seal-for both said cover cap and said closure cap to provide assume seal on a container. f

6; Asan articleof manufacture, a' closurecap i comprising a cover portionfladepending skirt having a bead therein, the lower edge of'the closure cap being turned inwardly to 'fonii'the lower'side of said bead, a' co'ver cap-nestedin said closure canthe outer periphery of said'cover cap" extending into said bead and being smaller in' diameter than the internalfl'diameter off'the lower edge of the closurecap, and a gasket in said head adapted to hold said cover cap in position and to seal the container-by means'of'the 1 35 cover cap. '7. A sealed. "package-comprising having a substantially cylindrical surface jadjacent themouth thereof n'dingin a shoulder, a cover cap fitting over said cylindricalsurfacehnd 7 a extending substantiallyto' said shoulder; 'a-clo'sur'e cap extending over the 5 cover eap; arid -"a" gaske't in said closure cap adjacent to saidshoulder 'and to the'lower edge" of the cover cap, said ga'sket being pressed into engagement with the-"lower 1-315 edge of the cover capvand into engagement with the container to form a doublsaLoxixthe cont'aimer TIT:

8. A sealed package'comprising. arcontainer :having a smooth annular.suflaceradiacent-rthe i 9. A sealed package comprising a container, a

cover cap extending over and telescoping about the end of said container, a closure cap extending completely over and completely enclosing the cover cap, and a gasket in said closure cap, the lower edge of said cover cap extending below the upper edge of said gasket whereby said gasket is adapted to seal both the cover cap and the closure cap upon the container, thus forming a double seal on the container with a single gasket.

10. A sealed package comprising a container having a substantially cylindrical surface adjacent the mouth thereof, a cover cap fitting over said cylindrical surface, a closure cap extending over the cover cap and adapted to form at hermetic seal on the container independently of the cover cap, and a gasket in said closure cap, said gasket being pressed into engagement with the lower edge of the cover cap to hermeticallyseal said cover cap and said closure cap on the conitainer.

11. As an article of manufacture, a closure cap comprising a cover portion, a depending skirt having a bead formed in the lower portion thereof, a gasket in said bead, and a cover cap nested in said closure cap, said cover cap having a depending skirt substantially shorter than the skirt of said closure cap and flared outwardly at its lower edge whereby the gasket in the bead is adapted to engage and support the lower edge of the skirt of the cover cap to lock said two caps together and to prevent accidental separation thereof.

12. In a two-piece closure for sealing contalners and the like, a closure cap constructed of sheet metal adapted to be reformed, but of sufficient thickness to prevent tearing thereof, said closure cap comprising a cover portion, a depending skirt, a bead formed in the lower portion of the skirt and a. gasket disposed in: the bead, and a cover cap constructed of like material as 'said closure cap nested in said closure cap, the gasket in the bead engaging the lower edge of said cover cap to hold it in position and to pre vent said two caps from being separated after once assembled.

EDGAR SCOF'IELD.