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Publication numberUS3504818 A
Publication typeGrant
Publication dateApr 7, 1970
Filing dateNov 25, 1968
Priority dateNov 25, 1968
Publication numberUS 3504818 A, US 3504818A, US-A-3504818, US3504818 A, US3504818A
InventorsCrisci Harry
Original AssigneeCrisci Harry
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tamper proof bottle closure
US 3504818 A
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Description  (OCR text may contain errors)

April 1970 H. CRISCI EYTAL 3504,81

TAMPER PROOF BOTTLE CLOSURE Filed NOV. 25, 1968 INV ENTO R. Harry Crlscl BY v ATTIQNEY.

United States Patent ABSTRACT OF THE DISCLOSURE A tamper proof milk bottle and closure combination in which the bottle has configurations about the neck thereof registering with configurations on a separable portion of a closure engageable therewith. The bottle and closure being formed of resilient material and permitting engagement of the closure on the bottle neck by threading and flexibly yielding engagement of the registering configurations which are arranged to prevent reverse rotation as necessary to remove the closure whereby a portion of the closure breaks away and remains on the neck of the bottle indicating tampering.

BACKGROUND OF THE INVENTION Field of the invention This invention relates to bottles and closures therefor designed to indicate the removal of the closure so that the purchaser may be assured that the contents of the bottle are as originally packed.

Description of the prior art Prior structures of this type have generally been em ployed on glass bottles through the addition thereto of a device engageable with the neck configuration of the bottle and also engageable with a closure to be positioned thereover, see for example US. Patents 2,172,159 and 1,190,708. Such devices are incapable of economic mass production and assembly as obviously necessary in a milk bottling facility where the present invention is successfully employed.

SUMMARY OF THE INVENTION Milk bottles of the one gallon or half gallon size blow molded of resilient flexible plastic material employing resilient flexible plastic closure caps threadably engaged thereon are becoming widely used in distributing milk and the desirability of readily indicating to the final consumer the uncontaminated unopened bottle is obvious. The present invention forms a plurality of ratchet like teeth on two areas of the neck of the bottle and utilizes a threaded closure cap of integrally molded resilient plastic construction having an annular ring so formed as to be readily broken away from the remainder of the cap.

The ring includes a plurality of ratchet configurations on its inner surface which are registerable With and rotatable over the ratchet formations on the bottle neck due to the resiliency of the ring portion of the cap. This disposition of the ratchet configurations on the ring and the ratchet portions of the bottle neck are such that reverse threading motion as necessary to remove the closure result in the break away of the ring from the cap leaving it in engaged position on the ratchet portion of the bottle and clearly indicating that the closure has been removed.

DESCRIPTION OF THE DRAWINGS FIGURE 1 is a top plan view of a portion of a plastic milk bottle showing the neck and ratchet configurations thereabout.

FIGURE 2 is a side elevation thereof.

FIGURE 3 is a top plan view of the top of a closure.

3 Claims FIGURE 4 is a side view thereof with parts broken away and parts in cross section.

FIGURE 5 is a bottom view of the closure seen in FIGURES 3 and 4.

FIGURE 6 is a top plan view of a portion of a milk bottle showing a ring portion of the closure of FIGURES 3, 4 and 5 retained thereon.

FIGURE 7 is a side elevation of a portion of a milk bottle showing the closure being removed therefrom with the indicating ring separated and in the position illustrated in FIGURE 6.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In its illustrated form the tamper proof bottle and closure comprise a cooperating structure and specifically the neck portion of a plastic milk bottle such as the one gallon milk jug commonly used for distributing fresh milk.

In FIGURE 1 of the drawings the bottle is indicated by the numeral 10, a portion of a handle integrally molded therewith by the numeral 11 and the neck of the bottle by the numeral 12. The neck 12 at its uppermost annular portion has a circular configuration incorporating oppositely disposed ratchet sections 13, the individual angular tooth portions of which are inclined in a clockwise direction as seen in FIGURE 1 of the drawings.

By referring to FIGURE 1 and FIGURE 2 of the drawings, it will be seen that the remaining upstanding portion of the neck 12 has a spiral thread pattern 14 formed thereon so that a threaded closure 15 such as illustrated in FIGURES 3, 4 and 5 of the drawings may be threadably engaged thereon.

By referring now to FIGURES 3, 4 and 5 of the drawings, it will be seen that the closure 15 has an annular flange 16 and a break away annular ring 17 integrally molded with the closure by interconnecting frangible elements 18. The annular ring 17 is of larger diameter than the annular flange 16 of the closure and the annular ring 17 has a plurality of circumferentially spaced inwardly facing angular projections 19. In the top plan view of FIGURE 3, the annular ring 17 with its inwardly facing angular projections 19 may be seen and it will be observed that the angular projections 19 which are circumferentially spaced about the inner surface of the annular ring 17 are positioned so that they incline in a counter-clockwise direction.

It will thus be apparent that when the closure as seen in top plan view in FIGURE 3 of the drawings is positioned on the bottle 10 and specifically the neck 12 thereof as seen in FIGURE 1 of the drawings and the closure 15 is rotated clockwise as in turning the same downwardly on the thread pattern 14, it will cause the angular projections 19 to slide over the teeth of the oppositely disposed ratchet sections 13 formed on the neck 12 of the bottle. The sliding action is possible because the annular ring 17 is supported in spaced relation to the closure 15 by the plurality of circumferentially spaced radially extending frangible elements 18 and the spacing between the elements 18 is great enough so that the annular ring 17 is quite flexible and capable of movement toward and away from the annular flange 16 of the closure 15 which permits the hereinbefore described action of the sliding engagement of the angular projections 19 relative to the oppositely disposed ratchet sections 13.

It will be appreciated by those skilled in the art that the device would be inoperative if it were not for the resiliency of the material from which the closure and its annular ring 15 are formed and most importantly the arrangement and spacing of the frangible elements 18.

By referring now to FIGURES 4 and 5 of the drawings it will be seen that there is an annular spiral thread pattern 20 on the inner surface of the annular flange 16 and an annular tapered depending flange 21 on the inner surface of the horizontal portion of the closure 15. The flange 21 registers with the opening in the neck 12 of the bottle so that a cross sectionally U-shaped seal is realized between the closure and upper end of the neck 12 above the point where the thread pattern 14 thereon terminates. The spiral thread pattern on the inside of the annular flange 16 of the closure threadably engages the thread pattern 14 on the neck 12 of the bottle.

It will thus be seen that when the closure 15 is turned downwardly on to the neck 12 of the bottle in a clockwise direction by reason of the engaging thread patterns 14 and 20, the annular ring 17 with its annular projections 19 will distort and move to permit the same to slide over and move by the oppositely disposed ratchet sections 13 on the bottle 10. At such time as the closure 15 seals against the top of the neck 12 of the bottle 10, the ring 17 will be in full engagement with the ratchet sections 13 as best illustrated in FIGURES 6 and 7 of the drawings. In these figures, the ring 17 is shown separated from the remainder of the closure 15 and specifically the annular flange 16 thereof to which it was originally atached by the frangible elements 18 and the interlocking relationship is clearly seen in FIGURE 6 of the drawings.

It will be obvious to one skilled in the art that when the closure 15 is grasped by the knurled outer surface 22 and an attempt made to rotate it in counterclockwise relation so as to remove it from its threaded engagement on the neck of the bottle 10, the registering configurations of the angular projections 19 and the ratchet sections 13 will prevent rotation of the annular ring 17 which will then break away from the closure 15 by the breaking of the relatively few frangible elements 18.

In FIGURE 7 of the drawings this action is illustrated with the closure having been rotated in counter-clockwise relation and thereby threadably removed from most of the neck of the bottle while the ring 17 remains in position serving as a telltale signal that the cap has been removed.

It will thus be obvious to those skilled in the art that a tamper proof bottle and closure has been disclosed which provides a sure and definite indication of the removal of the cap from the bottle. The presence of the annular ring 17 indicates the severance of the two parts of the closure and if the cap and the severed ring portion 17 are both removed and the cap portion replaced without the ring the absence of the ring also indicates tampering with the closure. The invention thereby achieves its principal object.

Although but one embodiment of the present invention has been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.

I claim:

1. The combination of a bottle and a closure therefor wherein the bottle has a threaded neck defining an access opening, the neck having an exterior configuration including a ratchet section, and a closure comprising a threaded cap engageable with said neck, a plurality of circumferentially spaced radially extending frangible elements on said closure, a thin flexible annular ring carried on the outer ends of said frangible elements in spaced relation to said closure, a plurality of circumferentially spaced radially inwardly extending angular projections on the inner surface of said annular ring circumferentially spaced from said frangible elements and being arranged for registry with said ratchet section on said bottle neck, said annular ring flexing outwardly between said frangible elements as said angular projections and ratchet section engage to permit slipover engagement of said angular projections and said ratchet section when said closure and ring are rotated in one direction and said frangible elements and ratchet section so formed as to prevent rotation of said annular ring in the opposite direction.

2. The combination bottle and closure set forth in claim 1 and wherein said ratchet section on said bottle neck occupies less than half the diameter of said neck.

3. The bottle and closure combination set forth in claim 1 and wherein there are two ratchet sections on said bottle neck arranged in oppositely disposed relation.

References Cited UNITED STATES PATENTS GEORGE T. HALL, Primary Examiner US. Cl. X.R.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3407976 *May 24, 1966Oct 29, 1968Zensho HommaContainer with plural pour spouts and frangible closure
US3415403 *Dec 14, 1966Dec 10, 1968Bennett Ind IncClosure apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3650428 *Apr 9, 1970Mar 21, 1972V C A CorpTamperproof closure device
US3805987 *Dec 16, 1971Apr 23, 1974Horvath WTamperproof closure cap and container therefor
US3861550 *May 21, 1973Jan 21, 1975Allied ChemLiquid container with perforatable locking closure
US3874540 *Jan 30, 1974Apr 1, 1975Hidding Walter ETamperproof cap
US3902621 *Aug 5, 1974Sep 2, 1975Walter E HiddingTamperproof closure with grippable handle
US4062466 *Oct 7, 1976Dec 13, 1977Dairy Cap CorporationTamper-proof closure cap with self-removing ring
US4071157 *Mar 14, 1977Jan 31, 1978Euracom S.A.Safety stoppering device
US4081097 *Nov 15, 1976Mar 28, 1978Underberg Gesellschaft Mit Beschrankter HaftungSafety closure for bottles
US4225050 *May 21, 1979Sep 30, 1980Segen Industries, Inc.Tamper-proof bottle caps and method of forming same
US4278180 *Jan 24, 1980Jul 14, 1981Aluminum Company Of AmericaContainer closure with breakable annular ring
US4337870 *Apr 23, 1980Jul 6, 1982Keeler Frederick DTamper-proof closure cap and method of fabrication
US4355730 *Jun 2, 1980Oct 26, 1982Ernest WiedmerScrew cap with a guarantee ring for indicating the first opening of a container
US4418828 *Jul 24, 1981Dec 6, 1983H-C Industries, Inc.Plastic closure with mechanical pilfer band
US4448318 *Aug 20, 1982May 15, 1984The West CompanyTamper evident container-closure assembly
US4489843 *Mar 17, 1983Dec 25, 1984Captive Plastics, Inc.Tamper-evident closure and container
US4527706 *Feb 13, 1984Jul 9, 1985Owens-Illinois, Inc.Tamper indicating package
US4534480 *Jun 1, 1984Aug 13, 1985Sun Coast Plastics, Inc.Tamper evident closure
US4545496 *Dec 1, 1983Oct 8, 1985H-C Industries, Inc.Plastic closure with mechanical pilfer band
US4609115 *May 15, 1985Sep 2, 1986Phoenix Closures, Inc.Tamper-evident closure and bottle assembly
US4667839 *Sep 3, 1985May 26, 1987Northern Engineering And Plastics Corp.Snap on tamper indicating closure for containers
US4722447 *Nov 20, 1986Feb 2, 1988Northern Engineering And Plastics Corp.Closure assembly with two tamper indicators
US4746035 *Dec 8, 1986May 24, 1988Calmar, Inc.Liquid dispenser having a tamperproof overcap
US4801029 *Feb 9, 1988Jan 31, 1989Continental White Cap, Inc.Tamper evident cap
US4813561 *Feb 29, 1988Mar 21, 1989Anchor Hocking CorporationSealed package
US4854472 *Jun 10, 1988Aug 8, 1989Plastic Technologies, Inc.Tamper resistant wide mouth package with dynamic seal
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US5040692 *Dec 17, 1990Aug 20, 1991Sunbeam Plastics CorporationTamper indicating closure
US5105960 *Oct 31, 1991Apr 21, 1992Northern Engineering & Plastics, Corp.Container and closure with cooperating threaded portions having fastening configurations
US5209795 *Aug 9, 1991May 11, 1993Teledyne Industries, Inc.Method of forming a seal removal tab on a collapsible tube
US5285912 *Jul 9, 1993Feb 15, 1994Northern Engineering & Plastics, Corp.Snap on pull off tamper indicating flexible cap and neck configuration
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US5505325 *Dec 21, 1994Apr 9, 1996Richard ThompsonTamper evident dual non-replaceable snap-on cap
US5560504 *Nov 4, 1993Oct 1, 1996Molinaro; LucaSnap on pull off tamper indicating flexible cap and neck configuration
US5588562 *Oct 31, 1994Dec 31, 1996Sander; DieterTamper evident resealable plastic closure
US5699924 *Apr 26, 1996Dec 23, 1997Portola Packaging, Inc.Attachment of tamper-evidencing band to closure skirt
US5862953 *Jul 24, 1996Jan 26, 1999International Plastics And Equipment CorporationTamper evident push-pull closure with pour spout
US6073809 *Nov 15, 1996Jun 13, 2000International Plastics And Equipment CorporationSnap-on tamper evident closure with push-pull pour spout
US7228979Jun 16, 2004Jun 12, 2007International Plastics And Equipment Corp.Snap-on screw-off closure with retaining member for tamper-indicating band
US7527160 *Oct 9, 2003May 5, 2009Rexam Prescription Products Inc.Closure having user-modifiable functionality
US7581652Aug 9, 2005Sep 1, 2009Rexam Closure Systems Inc.Tamper-indicating package, and a closure and container for such a package
DE4134741A1 *Oct 21, 1991Apr 30, 1992Peter RegneriCan with tamper-resistant closure and bayonet type lock - has radially inwardly projecting detent tooth connected to tub on outside
DE4134741C2 *Oct 21, 1991Apr 3, 2003Peter RegneriDose mit Originalitätsverschluss
DE9014858U1 *Oct 26, 1990Jan 10, 1991Detax Karl Huber Gmbh & Co Kg, 7500 Karlsruhe, DeTitle not available
EP0014319A1 *Jan 8, 1980Aug 20, 1980MERCK PATENT GmbHScrew-thread closure device
EP0202728A2 *Feb 19, 1986Nov 26, 1986Phoenix Closures, Inc.Tamper-evident closure and bottle assembly
EP0709301A2Oct 30, 1995May 1, 1996Uwe F. MeyerTamper indicating resealable closure for a container
WO1996029560A2Mar 13, 1996Sep 26, 1996Dani MarkbreitLock for chambers and magazines of weapons
WO2008130250A1 *Apr 23, 2008Oct 30, 2008Blake Graeme AshleyImprovements in and relating to tamper evident seals
Classifications
U.S. Classification215/252, D09/443
International ClassificationB65D41/34
Cooperative ClassificationB65D41/3409
European ClassificationB65D41/34A1