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Publication numberUS3599845 A
Publication typeGrant
Publication dateAug 17, 1971
Filing dateJul 23, 1969
Priority dateJul 23, 1969
Also published asCA949006A, CA949006A1
Publication numberUS 3599845 A, US 3599845A, US-A-3599845, US3599845 A, US3599845A
InventorsMiller Christian F
Original AssigneeVca Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Container closure
US 3599845 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Unite States Patent [73] Assignee VCA Corporation (formerly k/a Valve Corporation of America) Greenwich, Conn.

[54] CONTAINER CLOSURE 7 Claims, 6 Drawing Figs.

[51] Int. Cl 367d 3/00 [50] Field of Searc 222/521 [56] References Cited UNITED STATES PATENTS 1,904,739 4/1933 Kroen 222/521 1,975,878 10/1934 Thomson..... 222/521 3,285,479 11/1966 Porter et al.. 222/521 7 3,326,426 7 6/1967 Porteret a1. 222/521 Attorney-Olson, Trexler, Wolters & Bushnell 3,406,880 11/1968 Stull; 222/521 3,194,453 7/1965 Cherba 222/521 FOREIGN PATENTS 831,875 4/1960 Great Britain 222/521 Primary Examiner-M. Henson Woo'd, Jr. Assistant Examiner-Edwin D. Grant ABSTRACT: A valved closure and dispensing assembly for containers, such as bottles, jars and the like, including a main closure body of relatively hard plastic material and having a neck portion with a closure pin or stopper of reduced cross section fixed centrally at the outer end of the neck opening; and a sliding closure cap member of relatively softer plastic materialhaving a depending skirt externally interfitting and interlocking with the outer surface of the neck portion for limited sliding movement relative thereto and having a central opening through the top clearing the closure pin or stopper for dispensing purposes and snugly receiving the pin or stopper therein for closing the neck opening against dispensing.

plastic material, such as CONTAINER CLOSURE The invention is concerned with a combined closure and dispensing cap for mounting on containers for liquid or semiviscous liquid materials and other flowable materials, and particularly for mounting on necked containers where the container neck is provided with external thread formations or the like for interfitting engagement with cooperating formation on the cap.

The cap includes a main closure body of relatively hard polystyrene, and a closure cap member of relatively softer plastic material, such as polyethylene. The closure body includes a dispensing neck portion with an inwardly offset closure pin or stopper at the outer end thereof and providing an egress opening therearound. The closure cap includes a depending skirt portion and a top portion apertured to snugly receive the closure pin or stopper or to clear the same for dispensing purposes. There is an interconnection between the cap skirt' and the closure neck permitting this relative sliding movement between the cap and body.

An object of the invention is to provide mutually interfitting connections between the cap skirt and body neck for permissive relative sliding movement therebetween, with the connections disposed externally of the body neck and internally of the cap skirt. Such an arrangement avoids molding problems encountered where the interfitting connections are disposed internally of the body neck. In such latter arrangements, the main body member must be molded in a relatively complex die having interfitting plunger portions movable within' the body neck with the plungers having interfitting end connections brought into engagement to maintain alignment. In a multicavity mold, there is difficulty in keeping all of the cavities at the same temperature-the outer ones tending to cool more than the inner ones-with the result that misalignment of the parts may occur in some of the cavities resulting, in turn, in breakage of the interfitting end connectionsand other molding problems.

Other objects of the invention are to better maintain the shape and appearance with the main closure body of relatively hard plastic material applied to a container; to provide a relatively strong interlocking connection between the cap and body guarding against inadvertent removal of the cap while facilitating initial assembly thereof with the body, particularly with the interconnection therebetween disposed externally of the body neck, and which latter arrangement improves dispensing flow characteristics by elimination of internal connections tending to impede the dispensing flow or lend turbulence thereto.

In the accompanying drawing:

FIG. 1 is a fragmentary perspective view showing the closure and cap assembly applied to a container neck;

FIG. 2 is an enlarged side cross section showing the closure and cap assembly threaded to the container neck with the cap in closing position;

FIG. 3 is a view similar to position;

FIG. 4 is a side cross section of the cap;

FIG. 5 is a perspective view of the main body member with the cap removed therefrom; and

FIG. 6 is a sectional view taken substantially along the line 6-6 of FIG. 3.

Referring to the accompanying drawing, there is shown in FIG. 1 a container 10 with a neck portion 12 on which is externally mounted the main closure body 14 carrying the sliding closure cap 16. With particular reference to FIG. 2 and 3, the container neck portion 12 is provided with external threads 18 to mate with internal threads 20 on the skirt portion 22 of the closure body 10 which includes an inward top closing portion 24 terminating in an upstanding dispensing neck portion 26. The top closing portion 24 is provided with an internal annular bead 25 to engage and seal with the top edge of the body neck FIG. 2 with the cap in dispensing 12. At the upper end of the body neck portion 26, there is an upstanding centrally disposed pin or stopper 28 joined to the inner surface of the neck portion by opposed narrow webs 30 (FIGS. 5 and 6) leaving therebetween egress passages for the material to be disposed from the container. The cap 16 is provided with a top 32 inclined upwardly to a central aperture 34 dimensioned to snugly receive the pin or stopper 28 in the closed position of FIG. 2, thus closing the container against dispensing. The cap 16 further includes a depending skirt portion 36 with external knurling or ribs 38 and slidably interconnected with the external surface of the body neck as described below.

The external surface of the body neck portion 26 is provided near the top thereof with an annular recess 40, the axial length of which determines the extent of sliding movement of the cap. The upper limit is defined by an outward right angled -shoulder surface 42 and the lower limit is defined by a shoulder surface 44. The top surface of the neck portion 26 is inclined downwardly, as at 46, around the outer periphery thereof. Below the shoulder surface 44, there is a smooth vertically extending guiding and sealing surface 48 of a diameter larger than that of the recess 40. The inner surface of the cap skirt portion 36 is provided near the top thereof with an annular rib 50 to slide within the recess 40. The lower end portion of the cap skirt portion 36 is provided with a pair, or more, of vertically spaced annular ribs 52, 54 to tightly engage the guiding and sealing surface 48 on the body neck 26. e

In assembling the cap 16 to the body 14, the cap being of relatively softer and more resilient plastic material than the relatively harder and more rigid plastic material of the body, the cap skirt 36 is telescoped over the body neck 26 and forced downwardly. The inner diameters of the ribs 52, 54 are such as to only slightly engage, or even bypass the outer periphery of the shoulder surface 42 but to snugly engage the outer surface of the guiding and sealing surface 48. During this telescopic assembly, the inwardly and upwardly inclined lower surface 56 of the rib 50 will cam past the inclined surface 46 at the top of the body neck 26 and snap beneath the shoulder 42. With the right angled shoulder surface 42, removal of the cap is difficult and this resistance to removal may be enhanced by making the upper surface of the rib 50 also right angled.

With the assembled cap and body attached to the' container 10, the position of the cap 16 in FIG. 2 receives the pin or stopper 28 snugly with the opening 34 to close the container. When the cap is shifted outwardly to the position of FIG. 3,

v the opening 34 clears the pin 28 to permit the contents of the container to be dispensed through the body neck 26 and the opening 34. During relative sliding movement of the cap 16, it is guided for precise rectilinear movement without canting by the continuous fluid tight engagement of the spaced ribs 52, 54 with the surface 48 throughout such sliding movement between open and closed positions, and during a portion of such movement engagement of the stopper pin 28 with the surface of the opening 34 also has a guiding effect. The relatively hard material of the body 14 maintains its shape and appearance and the guiding of the cap skirt 36 serves to maintain its shape and appearance even though of relatively softer material to facilitate original assembly of the cap and body. The inner surface of the rib 50 need not engage the surface of the recess 40, thus facilitating assembly in being forced past the shoulder incline 46, because sealing against leakage is provided by engagement of the ribs 52, 54 with the surface 48.

Iclaim:

l. A valved closure and dispensing assembly for attachment to the open end of a container, and comprising a closure body of relatively hard plastic material and including a depending attachment skirt interengageable around the open end of the container and an upstanding neck with a reduced valve pin projecting centrally above the neck opening and through which neck opening the container contents may be dispensed, said neck having an external annular recess adjacent the upper end portion thereof with an axial extent defined by upper and lower stop shoulders and an external guiding and sealing sur face therealong below said lower stop shoulder and of greater diameter than that of said recess, and a centrally apertured cap of relatively softer plastic material having a depending skirt portion externally telescoped with said neck, the internal surface of said skirt portion having lower internal annular rib means adjacent the lower end portion thereof and of comparably greater diameter than that of said recess for snugly and slidably engaging said guiding and sealing surface in sealing contact therewith and having upper internal annular rib means to be forced past said upper stop shoulder during assembly of the cap and body and received in said annular recess to confine vertical sliding movement of said cap to the distance between said upper and lower stop shoulders with inward movement of the cap positioning the valve pin within the cap aperture for closing the container against dispensing of the contents thereof and with outward movement of the cap clearing the valve pin from the cap aperture to permit dispensing of the container contents through the cap aperture.

2. A valved closure and dispensing assembly as claimed in claim 1, wherein the exposed upper surface of the upper stop shoulder at the top of said neck is inclined downwardly and outwardly for facilitating passage thereby of the upper rib means on the cap skirt during assembly thereof with said body.

3. A valved closure and dispensing assembly as claimed in claim 1, wherein the upper rib means on the cap skirt and the upper stop shoulder on said neck present for mutual engagement at least one surface right angled to the longitudinal axis of the assembly to resist separation of the cap from the body after assembly thereof.

4. A valved closure and dispensing assembly as claimed in claim 3, wherein the upper stop shoulder includes the said right angled surface.

5. A valved closure and dispensing assembly as claimed in claim 1, wherein the lower annular rib means on the cap skirt comprises a plurality of vertically spaced annular ribs engaging the guiding and sealing surface throughout the permissive sliding movement of the cap to prevent canting thereof relative to the longitudinal axis of the assembly.

6. A valved closure and dispensing assembly as claimed in claim 5, wherein the diameters of said ribs are greater than the diameter of said upper rib means movable in said annular recess.

7. A valved closure and dispensing assembly as claimed in claim 1, wherein the upper rib means on the cap skirt and the upper stop shoulder on said neck present for mutual engagement at least one surface right angled to the longitudinal axis of the assembly to resist separation of the cap from the body after assembly thereof; and wherein the lower annular rib means on the cap skirt comprises a pair of vertically spaced annular ribs engaging the guiding and sealing surface throughout the permissive sliding movement of the cap to prevent canting thereof relative to the longitudinal axis of the assembly with the diameters of said ribs being greater than the diameter of said upper stop shoulder to facilitate telescopic assembly of the cap to the body.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1904739 *Jul 8, 1932Apr 18, 1933Kroen August FClosure for containers
US1975878 *Apr 28, 1932Oct 9, 1934Dardelet Threadlock CorpClosure cap for containers
US3194453 *Sep 5, 1963Jul 13, 1965Container CorpLiquid dispensing closure arrangement
US3285479 *Aug 31, 1965Nov 15, 1966Product Design & Engineering IDispensing device with cammed stopper
US3326426 *Sep 14, 1964Jun 20, 1967Product Design & Engineering IClosure cap for containers
US3406880 *Dec 29, 1966Oct 22, 1968Stull Engraving CompanyDispensing closure cap
GB831875A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4749103 *Jan 8, 1987Jun 7, 1988Owens-Illinois Closure Inc.Child resistant dispensing closure system
US4826055 *Mar 11, 1985May 2, 1989Gene StullClosure cap construction
US5145094 *Aug 9, 1991Sep 8, 1992Edward M. BennettDispensing closure for squeeze bottle
US5284272 *Oct 19, 1992Feb 8, 1994Multiscience System Pte. Ltd.Multipurpose bottle and cap with massaging devices
US5520617 *Jan 11, 1995May 28, 1996Multiscience Systems, Pte. Ltd.Massaging device
US5887774 *Apr 23, 1991Mar 30, 1999Bethune; Peter R.Exercise fluid bottle
US5975369 *Jun 5, 1997Nov 2, 1999Erie County Plastics CorporationResealable pushable container closure and cover therefor
US6135329 *Oct 11, 1999Oct 24, 2000Creative Packaging Corp.Universal base pull/push-twist closure
US6286733Sep 13, 2000Sep 11, 2001Rexam Medical Packaging Inc.Sliding valve dispenser with overcap
US6321924Oct 8, 1999Nov 27, 2001Erie County Plastics CorporationResealable pushable container closure and cover therefor
US6758359Oct 11, 2001Jul 6, 2004Erie County Plastics CorporationSports beverage snap closure
US7036692Feb 19, 2003May 2, 2006Graham Packaging Company, L.P.Dispenser with an integrally molded neck finish
US7066360 *Nov 5, 2003Jun 27, 2006Alcoa Closure Systems InternationalPush-pull container closure
US7503453Nov 4, 2005Mar 17, 2009Viz Enterprises, LlcMulti-chamber container and cap therefor
US7854104Jan 30, 2009Dec 21, 2010Viz Enterprises, LlcMulti-chamber container and cap therefor
US9067716Sep 30, 2011Jun 30, 2015Federico IntriagoCap assembly for dispensing a dispensable component and method of making and using the same
US20040013326 *May 6, 2003Jan 22, 2004Graham Packaging CompanySqueezable two-piece stand-up tube
US20040108342 *Nov 14, 2003Jun 10, 2004Graham Packaging Company, L.P.One piece push-pull cap for plastic containers
US20040159680 *Feb 19, 2003Aug 19, 2004Graham Packaging Company, L.P.Dispenser with an integrally molded neck finish
US20050051574 *Aug 18, 2004Mar 10, 2005Graham Packaging Company, L.P.Low profile cap for stand-up tube
US20050092785 *Nov 5, 2003May 5, 2005Coy HearldPush-pull container closure
US20050105387 *Jul 20, 2004May 19, 2005Ali NikkhahDrink bottle with integrated mixing blades
US20060118435 *Nov 4, 2005Jun 8, 2006Jerry CroninMulti-chamber container and cap therefor
US20070108153 *Jul 14, 2004May 17, 2007Mario WeistDrinking and pouring closure with a piercing cutter device for composite packagings or container and bottle spouts sealed with a film material
US20080041891 *Aug 15, 2006Feb 21, 2008Sarah BradleyBottle cap
US20090133366 *Jan 30, 2009May 28, 2009Viz Enterprises, Llc.Multi-chamber container and cap therefor
US20110192735 *Aug 11, 2011Viz Enterprises, LlcMulti-Chamber Container and Cap Therefor
EP0024801A1 *Jul 17, 1980Mar 11, 1981Sunbeam Plastics CorporationOne-piece dispensing closure
EP1601609A2 *Jan 21, 2004Dec 7, 2005Graham Packaging Company, L.P.Dispenser with an integrally molded neck finish
WO1992003372A1 *Aug 19, 1991Mar 5, 1992Perlmutter Thom MDispensing closure for squeeze bottle
WO1996020889A1 *Dec 19, 1995Jul 11, 1996Alltrista CorporationPush/pull dispensing cap
WO2001027021A1 *Mar 17, 2000Apr 19, 2001Creative Packaging Corp.Universal base pull/push-twist closure
WO2003095313A2 *May 2, 2003Nov 20, 2003Graham Packaging Company, L.P.Squeezable two-piece stand-up tube
WO2003095313A3 *May 2, 2003Mar 18, 2004Rafael Francisco BerrittellaSqueezable two-piece stand-up tube
Classifications
U.S. Classification222/525, 222/521
International ClassificationB65D47/24, B65D47/04
Cooperative ClassificationB65D47/243
European ClassificationB65D47/24A2