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Publication numberUS3298415 A
Publication typeGrant
Publication dateJan 17, 1967
Filing dateApr 7, 1964
Priority dateApr 7, 1964
Also published asDE1432139A1
Publication numberUS 3298415 A, US 3298415A, US-A-3298415, US3298415 A, US3298415A
InventorsJulius Klygis Mindaugas
Original AssigneeContinental Can Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Closures for large mouth containers
US 3298415 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Jan. 17, 1967 M. J. was 3,298,415

" MNDAUGQSJ-KLYGIS CLOSURES FOR LARGE MOUTH CONTAINERS 2 Sheets-Sheet 1 Filed April 7, 1964 INVENTOR jj 1511.17, 1967 M. J. KLYGISI 3,298,415 I CLOSURES FOR LARGE MOUTH CONTAINERS Filed April 7. 1964 2 Sheets-Sheet 2 Mmoauems J-KLYGIS BY H W ATTORNEYS INVENTOR 3, N CLOSURES FOR LARGEMOUTHCONTAINERS Mindaugas Julius Klygis, Chicago, Ill., assignor to Continental Can Company, Inn, New York,N.Y., a corporation of'NewYork i Y Filed Apr. 7, 1964, Set. No. 357,937 y 4 Claims, (Cl. 150-.5)"

This invention relates to new and novel closure assemblies and more particularly to assemblies comprising a snap-enclosure member or a screw type closure member, either of which is formed of flexible material, and a container formedof flexible material.

It is old and well known to form containers, and closure members" therefor, from flexible thermoplastic material. Many offthe prior vart containers have included necks with screw threads formed thereon for cooperating with a screw-threaded closure member or cap, whilefother well-known containers have included necks with protuberances thereon forcooperating with a snap-on type of closure memberor cap. Such containersdonot always provide a'satisfactory seal such that liquids and'gra'nulated powdery materials maybe packaged therein Without troublesome leakage or possible spillage. The..usual cause of leakage in .the prior art containers' esults from imperfect cooperationbetween the connecting means on the container and the closuremember. Such imperfect cooperation may result because of manufacturing tolerances or from' improper design. s v I I It is an object of this invention to provide a new and novel container assembly wherein an improved seal is provided between a container and a closure member without reliance upon sealing rings or sealing compounds.

Anotlier object of this invention is to provide a container assembly wherein the container assembly comprises a closure member and a container formed of flexible thermoplastic. material and thecontainer includes a flexible upper portion which deforms and 'flexes ,within an annular cavity of the closure member to provide a tight seal upon assembly of the closure member with-the container. t y

Another objectof this invention. is to provide a plastic snap-on closure member comprising a centerpanel, an inner wall extending upwardly and outwardly from the center panel, an outerwall. spaced. outwardly'from the inner wall. and connected thereto by a bight portion to define an annular cavity, an upwardly and outwardly facing shoulder formed on the inner wall and underlying the bight portion, and locking rib. means on the outer wall extending inwardly therefrom.

Another object of this inventionlis to provide a snapon closure member, of the type set forth above, wherein theinner wall is spaced outwardly from the center panel by a recessed chuck panel, the upwardlyand outwardly facing shoulder being defined by a thickened portion of the innerwall. e

Another object of this invention is to provide a flexible thermoplastic container which includes an upper container portion and a neck portion, the upper container portion curving upwardlyand inwardly and being provided with an upwardly tapered and inwardly facing flexible flange, the flange having a terminal edge defining a filling opening for the containenthe upper container portion merging-with the neck portion and being. offset therefrom to define an annular locking-bead.

' Another object ofthis invention is to provide a container, of the type set forth above, wherein the annular locking bead includes .an-outwardly and downwardly facthis invention is to provide a flexi- United States Patent 3,298,4 l5 Pateriteddarn. '17, 1967" "ice ble plastic-closure member comprising a center panel and depending innerand outer walls disposed in spaced relation to definean annular cavity, screw thread locking means on the inside surface ofthe outer wall, and. projections on the center panel defining aslot for receiving a tool to aid in connecting and disconnecting the closure membertoacontainer I i I i n 1 A further object of this invention is to providean assembly comprising a closure member formed of flexible material and arcontainerformed of flexible material, the closure member 'comprisinga center panel, an inner wall extending upwardly and outwardly from the center panel, an outer .wall spaced outwardly from the inner wall, and connectedthereto .by a bight port ion to define an annular cavity, an upwardlyand outwardly facing shoulder formed on the inner wall and underlying the bight portion, and locking rib means on said outer wall extending inwardly; therefrom; the container including an upper container portion which curves upwardly and inwardly and is provided with an upwardly tapered and inwardly facing flange, the flange having a terminal edge defining a filling opening for the container, the upper container portion merging with a neck portion to definean annular locking'bead; theflange being. received within the annular cavityandubein'g suflflciently flexible so as to conform to the contour of the bight portion, the terminal edgelabutting the shoulder on the inner wall, and the locking rib means being snapped over the annular locking bead. I

With the above and other objects in view thatwill hereinafter appear, the nature of the invention will be more clearly'understood by reference to the following detailed. descrip tion,'the appended claimed subject matter and the several views illustrated in the accompanying drawings. n v

Inthe drawings: f FIGURE 1 is afragmentary perspective view which illustrates one form of container assembly embodying the present invention. n I

' FIGURE 2 is an enlarged vertical cross-sectional exploded-view which illustrates the closure member and container of FIGURE 1 prior to the assembly thereof.

-FIGURE 3 is an enlarged vertical cross-sectional view, taken on line 3-3 of FIGURE 1, and illustrates the closlire member and container subsequent to assembly there- 0 I FIGURE 4 is a fragmentary perspective view which illustrates another form of container assembly embodying the present invention. p

FIGURE 5 is an enlarged vertical cross-sectional exploded view which illustrates the closure member and container of FIGURE 4 prior to the assembly thereof.

, FIGURE 6 is an enlarged vertical cross-sectional view, taken on line 66 of FIGURE 4, and illustrates the clo- Sll' member and container subsequent to assembly there- 0 Referring to the drawings in detail, there is illustrated in FIGURE 1 a container assembly, generally indicated by the numeral 10, which container assembly 10 includes a snap-on closure member 11 and a container 12. The closure member 11 and the container 12 are each formed of conventional thermoplastic material by well known injection molding or blow molding processes.

The closure member 11 includes a center panel 13 which is spaced above a chuck panel 14 and is connected thereto by an angularly disposed first panel step 15. An inner wall 16 extends outwardly and upwardly from the chuck panel 14 and is spaced inwardly from an outer wall 17 by an arcuate bight portion 18. As is apparent in FIG- URE 2, the inner wall 16 and the outer wall 17 are spaced by the bight portion 18 so as to define an annular cavity 19. The inner wall 16 is provided with a thickened portion 20 which extends into the annular cavity 19 to form an upwardly and outwardly facing stop shoulder 21 adjacent to the bight portion 18.

A locking rib 22 is formed on the outer wall 17 and extends inwardly therefrom toward the inner wall 16. The locking rib 22 is preferably formed as an annular rib but may also be formed by a plurality of small nibs or protrusions (not shown).

A tab 23 is integrally formed on the outer wall 17, as is best shown'in FIGURE 1, for aiding in the removal of the closure member 11 from the container 12. Also shown in FIGURE 1 is a pair of score lines 24 which are formed in the outer wall 17 to define a tear strip 25 connected to the tab 23. A reinforcing head 26 is disposed adjacent the innermost ends of the score lines 24 so as to provide a thick cross section in order to stop tear action along the score lines 24 and thereby preserve the closure member 11 substantially intact and capable of reclosing the container 12.

The container 12, as is best illustrated in FIGURE 2, includes a tubular container body 30, a neck portion 31 and an upper container portion, generally indicated by the numeral 32. The upper container portion 32 curves upwardly and inwardly, as at 33, and is provided with an upwardly tapered and inwardly facing flexible flange 34. The flexible flange 34 has a terminal edge 35 which defines a large mouth or filling opening 36 for the container 12.

The upper container portion 32 merges with the neck portion 31 and is offset outwardly therefrom to define an annular locking head 37. The locking bead 37 includes an outwardly and downwardly facing surface 38 which extends circumferentially about the container 12.

It is apparent, from a consideration of FIGURESZ and 3, that during assembly of the snap-on closure member 11 and the container 12, the center panel 13 and chuck panel 14 are initially disposed within the mouth or filling opening 36 such that the terminal edge 35, of the flexible flange 34, is engaged by the inner wall 16. As the, closure member 11 is forced onto the container 12, the upper container portion 32 is forced past the locking rib 22 and is deformed so as to fit into the annular cavity 19 and conform to the contour of the bight portion 18. With the closure member 11 firmly seated on the "container 12, the locking rib 22 is snugly engaged with the surface 38 of the annular locking head 37. The terminal edge 35, of the upper container portion 32, is compressed against the shoulder 21, on the inner wall 16, and a tight seal is provided between the flexible fiange 34 and the bight portion 18. The tightness of the seal results not only from the large area of contact between the upper container portion 32, with the outer wall 17 and bight portion 18, but also because of the tendency for the flex- L and outer wall are connected together by a bight portion 56 and spaced so as to provide an annular cavity 57 'therebetween. The inner wall 54 depends from the center panel 53 and is connected thereto adjacent the bight portion 56. A stop shoulder 58 is preferably provided on the inner wall 54 in underlying relation to the bight portion 56. The shoulder 58 faces upwardly and outwardly from the inner wall 54 and intersects the bight portion 56 substantially normal thereto.

The closure member 51 is provided with an internal '.screw thread 60 on the insid of Ill; outer wall 55 to provide means for locking the closure member 51 onto the container 52. A plurality of quadrant projections 61 are formed on the center panel 53 and extend upwardly therefrom in spaced relation so as to define a pair of diametrical slots 62 for receiving a leverage tool (not shown) for tightening or loosening the closure member 51 on the container 52. The width of the slots 62 is suitably designed to match that of a mixing stick (not shown), for paint and the like, which mixing stick is an ideally suited leverage tool for tightening and loosening the closure member 51.

The container 52 is quite similar to the container 12 and includes a tubular container body 70, a neck portion 71 and an upper container portion, generally indicaed by the numeral 72. The upper container portion 72 curves upwardly and inwardly, as at 73, and is provided with an inwardly facing flexible flange 74. The flexible flange 74 has a terminal edge 75 which defines a large mouth or filling opening 76 for the container 52.

The upper container portion 72 merges with the neck portion 71 upon which is provided a helical screw thread 77 for cooperating with the screw thread 60 to lock the closure member 5 1.up0n the container 52.

It is apparent from a consideration of FIGURES 5 and 6, that during assembly of the closure member 51 and the container 52, the center panel 53 and inner wall 54 close the filling opening 76. As the closure member 51 is screwed onto the container 52, the upper container portion 72 is moved into the annular cavity 57 such that the flexible flange 74 is deformed so as to conform to the configuration of the bight portion 56. When the closure member 51 is tightened down on the container 52, the terminal edge 75 bears against the stop shoulder 58 and improves the tight seal between the flexible flange 74 and the the bight portion 56. The tightness of the seal results not only from the large area of contact between the upper container portion 72, with the outer wall 55 and bight portion 56, but also because of the tendency for the flexible flange 74 to return from the deformed configuration, as is shown in FIGURE 6, to the unstressed configuration which is shown in FIGURE 5.

It is apparent from the foregoing detailed description that there has been disclosed various types of containers and closure members which are particularly adapted for holding various liquids such that no leakage will occur. The inturned flexible flanges 34 and 74 not only provide for forming a liquid-tight seal but, when the containers are used to package paints or lacquers, the terminal edges 35 and 75 thereon provide a very effective edge for efficient scraping of a paint brush or the like.

While a preferred form and arrangement of parts has been shown in illustrating the invention, it is to be clearly understood that various changes in details and arrangement of parts may be made without departing from the spirit and scope of the invention as defined in the appended claimed subject matter.

I claim:

1. An assembly comprising a closure memberformed of flexible material and a container formed of flexible material, said closure member comprising a central panel, an inner wall, an outer wall spaced outwardly from said inner wall and connected thereto by a bight portion to define an annular cavity, an upwardlv and outwardly facing shoulder formed on said inner wall and underlying said bight portion, locking rib means on said outer wall extending inwardly therefrom, said annular cavity being defined by an arcuate surface between said locking rib means and said shoulder, said arcuate surface being of a predetermined distance as measured thereal-ong in an axial plane taken through said closure member, said container including an upper container portion which curves upwardly and inwardly and is provided with an upwardly tapered and inwardly facing flange, said flange having a terminal edge defining a filling opening for said container, said upper container portion merging with a neck portion having locking means thereon, the distance between said locking means and said terminal edge being substantially equal to said predetermined distance as measured thereal-ong in an axial plane taken through said container, said flange being received within said annular cavity and being sufiiciently flexible so as to conform to the contour of said bight portion, said terminal edge being in abutting seating relationship with said shoulder on said inner wall, and said locking rib means cooperating with the locking means on said neck portion such that said flange and said bight portion provide a seal between said container and said closure member.

2. The assembly as defined in claim 1 including another bight portion opening in opposed relationship to said first-mentioned bight portion for connecting said inner wall to said central panel, said inner wall being progressively reduced in thickness from said shoulder toward said second bight portion, a tab provided onsaid outer wall, and at least one score line formed in said outer wall to facilitate the rupturing of said outer wall and the subsequent removal of said closure member from said container.

3. The assembly as defined in claim 1 wherein a tab is provided on said outer wall, and at least one score line is formed in said outer Wall to facilitate the rupture of said outer wall incident to the removal of said closure member from said container.

4. The assembly as defined in claim 1 including another bight portion opening in opposed relationship to said first bight portion and connecting said inner wall to said central panel, said central panel being disposed in a plane generally normal to the axis of said closure member and between planes taken through said first-mentioned and another bight portion, said inner wall being progressively reduced in thickness from said shoulder toward said second bight portion, a tab provided on said outer Wall, and a pair of weakened lines formed in said outer wall adjacent said tab to facilitate the rupturing of said outer wall and the subsequent removal of said closure member from said container.

References Cited by the Examiner UNITED STATES PATENTS 1,351,304 8/ 1920 Shelton 215-46 2,833,324 5/1958 Burroughs 220 2,991,902 7/ 1961 Lind -.5 3,032,226 5/ 1962 Terwilliger 21541 3,074,579 1/ 1963 Miller 215-43 3,116,846 1/ 1964 Salrninen 21541 3,189,071 '6/ 1965 Balkema et al. 21541 3,216,610 11/1965 Klygis 150-.5

JOSEPH R. LECLAIR, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1351304 *Feb 13, 1920Aug 31, 1920Shelton Walter MClosure-releasing means for jars
US2833324 *Sep 12, 1955May 6, 1958Burroughs Mfg CorpContainer
US2991902 *Nov 19, 1957Jul 11, 1961Lind Evald Torbjorn GustavSealing devices
US3032226 *Dec 23, 1960May 1, 1962Terwilliger Floyd AContainer closure
US3074579 *Jan 15, 1960Jan 22, 1963Formold Plastics IncCombination closure cap and stopper
US3116846 *Nov 29, 1960Jan 7, 1964Pasinvest EtsBottle closure
US3189071 *May 31, 1963Jun 15, 1965Cons Thermoplastics CompanyFlexible dispensing container assemblies
US3216610 *Sep 25, 1963Nov 9, 1965Continental Can CoContainer closure
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3419195 *Oct 10, 1966Dec 31, 1968Assalit LouisContainer and closure assembly
US3422984 *Jan 16, 1968Jan 21, 1969Clark Mfg Co J LContainer with lift tab cover release
US3470927 *Aug 22, 1967Oct 7, 1969K & M Rubber CoStorage container
US3474843 *Aug 28, 1967Oct 28, 1969Maris David BBlow-molded containers
US3529648 *Nov 25, 1968Sep 22, 1970Morton Int IncTop-to-container snap lock
US3532372 *Sep 14, 1967Oct 6, 1970Stroud Ray DPlastic interlock
US3578202 *Nov 4, 1969May 11, 1971Ugine KuhlmannSealing assembly and method
US3620408 *Nov 13, 1969Nov 16, 1971Medical Dev CorpVacuum-filled fluid bottle and system
US3622028 *May 1, 1970Nov 23, 1971Furstlick Hohensollernsche HutClosure construction
US3645571 *Mar 2, 1970Feb 29, 1972Lunsford WalterLocking means
US3712519 *Jun 25, 1970Jan 23, 1973Phillips Petroleum CoContainer and closure
US3804139 *Feb 8, 1973Apr 16, 1974Mauser KgContainer of synthetic plastic material
US4007012 *Aug 4, 1975Feb 8, 1977Greenwald Robert JFecal examination device
US4067443 *Jan 26, 1977Jan 10, 1978Greenwald Robert JFecal examination device
US4156491 *Jul 10, 1978May 29, 1979Lyon Newton EAttachment for container closure
US4177906 *May 31, 1978Dec 11, 1979Maxcap Inc.Blow molded plastic bottle and plastic cap
US4301937 *Dec 3, 1979Nov 24, 1981Maxcap, Inc.Blow molded plastic bottle and plastic cap
US4351447 *Jul 31, 1981Sep 28, 1982Graff Stewart MReusable resiliently distortable sheet plastic closure for application to rimmed containers
US4387818 *Nov 7, 1980Jun 14, 1983Itnoc Dairy Cap Co. Inc.Snap-on tamper-proof closure
US4496066 *Jul 27, 1983Jan 29, 1985Three Sisters Ranch Enterprises PtrsNeck finish for plastic containers
US4531650 *Sep 26, 1980Jul 30, 1985The Continental Group, Inc.Plastic cap with pressure seal
US4958744 *Apr 11, 1989Sep 25, 1990Kingsley Nominees Pty. Ltd.Container closure
US5292017 *Jan 26, 1993Mar 8, 1994Calmar Inc.Child-resistant closure with easy opening feature
US5460283 *Dec 28, 1994Oct 24, 1995Macartney; Charles T.Sealing closure cap
US5460287 *Feb 18, 1994Oct 24, 1995Graham Packaging CorporationBlow-molded wide mouth plastic container and injection-molded lid
US5693265 *May 3, 1996Dec 2, 1997Jaeger; ArnoldWater aerator
US5879151 *Dec 19, 1997Mar 9, 1999S. C. Johnson & Son, Inc.Votive candle holder lid, candle package and related method
US7225945 *Aug 15, 2005Jun 5, 2007Graham Packaging Company, LpSelf-adjusting re-sealable spring center closure
US8240492Apr 23, 2008Aug 14, 2012RFR Design LLCSnap closure
US8297461 *Feb 22, 2011Oct 30, 2012Perimeter Brand Packaging LLCMoisture retention seal
US20110220671 *Feb 22, 2011Sep 15, 2011Union Street Brand Packaging LlcMoisture retention seal
USRE28521 *Feb 25, 1974Aug 19, 1975 Container construction
EP0232036A2 *Jan 19, 1987Aug 12, 1987Sun Coast Plastics, Inc.Plastic closure for beverage container
WO2004080816A2 *Mar 3, 2004Sep 23, 2004Cuccia BernardScrew cap with lever housing
Classifications
U.S. Classification215/321, 215/302, 215/320
International ClassificationB65D43/02
Cooperative ClassificationB65D2543/0074, B65D43/0231, B65D2543/00685, B65D2543/00898, B65D2543/00555, B65D2543/00518, B65D43/0208, B65D2543/00092, B65D2543/00796, B65D2543/00296, B65D2543/00537, B65D2543/00842, B65D2543/00509, B65D2543/00648
European ClassificationB65D43/02S7E, B65D43/02S3B