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Publication numberUS2162711 A
Publication typeGrant
Publication dateJun 20, 1939
Filing dateMar 31, 1936
Priority dateMar 31, 1936
Publication numberUS 2162711 A, US 2162711A, US-A-2162711, US2162711 A, US2162711A
InventorsJohn Hamberger
Original AssigneeJohn Hamberger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tamperproof closure
US 2162711 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

J. HAMBERGER TAMPERPROOF CLOSURE June 20, 1939.

Filed March 31, 1936 INVENTOR.

HM ll. IL I W Hm I/ M A 4 0 2 M q A ,9 n C 9 6 ZT 7 6 7 8 I U wa l-| v. 5 m 2 w M I," W W 2F L Patented June 20, 1939 PATENT OFFICE TAMPERPROOF CLOSURE John Hamberger, New York, N. Y.

Application March 31,

. 4 Claims.

This invention relates to a tamperproof closure for containers, and particularly to an improvement in tamperproof closures having as its principal object to present an effective and very simple, construction and which is easily applied.

Another object of the invention is to provide an improved tamperproof closure for containers in which is reduced the number of parts necessary for such a device and to make it as inexpensive in construction as possible together with a form which may be easily and rapidly assembled.

A further object of the invention is to provide an improved tamperproof closure for containers which includes an opening closure structure struclll turally combined with an externally visible. readily breakable or tearable indicator positioned to. prevent the removal of the closure withoutinvention is to provide a closure for containers so formed with an extendedbreakable portion coacting with means carried by the container and removably associated therewith, whereby when the closure is removed or partly removed the breakable portion orindicator will be acted on '35 bythe means carried by the container so that it will be swung outwardly and therefore fractured sufliciently to be readily observable by a person inspecting the closure.

In the accompanying drawing: I Fig. 1 is a View of the upper part of a container and tamperproof closure embodying the invention, the closure and certain parts of the container being shown in section;

Fig. 2 is a sectional view through Fig. 1 an- 45 proximately on the line 2--2; 1

Fig. Bis a fragmentary view similar to Fig. 1 but showing a modified form of the invention; Fig. 4 is a view similar to Fig. 3 but showing 50 another form of the invention;

Fig. 5 is a view similar to Fig. 4 but showing a further modified form of the invention;

Fig. '6 is a view similar to Fig. 5 but showing an additional modified form of the invention;

w i 7 i .Yi QW im la f Fig. 1 ut. sh w n 1936, Serial No. 71,847

a modified form of the invention to that illustrated in Fig. 1;

Fig. 8 is a horizontal sectional view through Fig. 7 approximately on the line 88;

Fig. 9 is a developed fragmentary sectional view through Fig. 7 approximately on the line 9-9;

Fig. 10 is a. view similar to Fig. 9 but showing a modified construction thereof;

Fig. 11 is a fragmentary elevation of a modified form of locking means to that shown in Fig. 8, the view illustrating how the spring is depressed into the locking notch of the container;

' Fig. 12 is a top plan view partly in section of the structure shown in Fig. 11;

Fig. 13 is a view similar to Fig. 11 but showing a slightly modified construction, the sectional part being taken on the line 13-43 of Fig. 14;

Fig. 14 is a sectional view through the structure shown in Fig. 13.

Referring to the drawing by numerals, I indicates a container of any desired size and shape and also of any desired material, as for instance glass, metal, porcelain, or the like. Extending from the container I is what may be termed a neck 2 which is open-at the top and which-is adapted to be sealed by a suitable Washer or gasket 3 of cork or other material. This cork or other. member is compressed by the closure 4 which may be made from any desired material,-

as for instance a molded material, or it could be formed with metal provided the depending apron 5 was formed to be readily broken under circumstances hereinafter fully described.

In order to make the invention clear, the specific structure shown in the drawing will be described, but it will be understood that any equivalents or any forms which come within the appended claims are within the invention.

'As shown in Fig. 1 of the drawing, theclosure 4 and the apron or indicating member or ele-'-'- ment 5 are made integral or structurally connect-" ed or associated by a section 6 having grooves 'I' By providing this breakable indi-; eating element anyone looking at the; container 1 will readily see that it has been tampered with. By providing the annular horizontal shoulder 6, the broken edge at neck 9 will be prominently displayed or presented to view so that the eye can not miss this broken surface which might be true if the surface was at the bottom of the annular wall 4. In forming the closure 4 the same may be of any shape desired and held in place by any desired means, but for the purpose of illustration threads III are formed on the inner surface of wall 4' which coact with the threads H on neck 2, whereby the closure may be screwed downwardly into position and also unscrewed when desired.

The indicator 5 is, as above mentioned, an integral extension or apron of the closure 4, and is provided with a comparatively thin annular section I2 which at the lower edge merges into a thickened part I3 having a beveled or cam surface I4 and may be annular, continuous or interrupted. The enlargement I3 coacts with a ring I5 which may be termed theicombined looking and breaking ring, Ring I5 may be made from metal or other desired material and is formed with an annular central section I6, from which project spaced breaking prongs or extending members H which coact with the anchoring or retaining extensions or members I8.

The container or the neck of the container is formed with an annular bead IS, an annular enlargement 20 and. a second annular bead ZI which has its upper surface preferably arranged flat or slightly tapered. The upper surface of the enlargement 20 is preferably flat or slightly tapered and in a plane parallel to the upper surface of the bead 2|, while the upper and lower surfaces of bead I9 taper or press a bevel so that when the ring I5 is moved downwardly over the neck.

2 into the position shown in Fig. 1, the various anchoring protuberances I8 may readily snap into the position shown in Fig. 1. It will be understood that the protuberances I8 are resilient and also the protuberances or members II are resilient and also bendable. Comparatively small .members I I have been shown, but it will be evident that it will be in the spirit of the invention if these were made much larger or even smaller or continuous.

The ring I5 and also the closure 4 with its indicator 5 are both formed into proper shape before they are applied to the container, and consequently it may be said that they are preformed. After the ring I5 has been snapped into position as shown in Fig. 1, the closure 4 is then applied and the indicating member 5 will naturally readily slip over the upper part of the container, and then the threads IB and I I will interlock. As the closure is rotated in order to be screwed down into closing position, the enlargement I3 will engage the various members I7 and the under-beveled surface or cam 22 will slide over the upper surface of member I1. These members being resilient will yield, and finally when the closure 4 has been screwed down tightly into position the various members I? will snap into their normal locked position on top of the cam surface I4. -When this occurs the closure with its breakable indicating element will be in correct normal position.

It will be noted that the bead or flange 2i almost touches the lower edge of the indicator 5, and consequently will present the insertion of any tool or implement. When an authorized person desires to secure the contents of the container, closure 4 is merely grasped and rotated so as to be unscrewed. This will produce a rotary and an axial movement of the parts. As the closure with its indicator 5 moves axially, the surface I4 will press against the outer ends of the respective members I! and attempt to raise these members, but as the ring is anchored by member IS the members M will merely bend or swing outwardly. This outward deforming of these members will radially slide the lower part of the member 5, and as this member is fragile it will break either at the lower part or at the neck 9. Usually the break is at the neck 9, although when this occurs several other parts will be substantially simultaneously broken. The container may then be shaken and these parts will fall off. The unscrewing of the closure will then be continued until it is removed, If this is done by an unauthorized, person, anyone can readily see that the device has been tampered with by reason of the broken parts of the indicator 5 or by the broken surface left when neck 9 is broken.

In Figs. 3 to 6 inclusive slightly modified forms of the structure shown in Fig. 1 are disclosed, although the function of the device is the same and the results are the same, namely the breaking of the indicator portion of the closure. The con struction of the indicator portion, as shown in Figs. 3 and 4, provides an alternative inasmuch as the spring member I5 can be assembled with the indicator portion of the closure prior to assembly with the container.

As shown in Figs. 3 and 4, the indicator 5' is smaller than in Fig. 1 and the section I6 bears against the inclined under-surface 23. Aside from these features, the action is the same as in the preferred form and therefore no additional description is thought to be necessary.

In Fig. 5 the ring I6 is arranged at 'an angle with the members I1 and I 8' in the same plane. The enlargement 20 in this form ofthe invention is provided with an inclined top surface 20 for accommodating the section or body I6. Aside from these features, the action is the same as in the preferred form, namely in the form shown in Fig. 1.

In Fig. 6 the enlargement I3 is divided into a number of sections and the body I6 of the ring is formed with a depending inclined annular extension I 'I" which functions the same as the members II of Fig. 1. Aside from these features, the construction and operation is the same as in the preferred form.

In Figs. 7, 8 and 9 an additional form of the invention is shown wherein the same principle is used as in the form shown in Fig. 1, but with the parts slightly changed in detail structure. In this form of the invention the indicator 6 is. provided With a wider horizontal member 6 than in Fig. 1, and on the under-surface of member. 6' there are provided teeth 24 formed therewith. The breaking neck 9 is still maintained in this form of the invention, although when the breaking action takes place it may break at this point or at some other point, but will always present an exposed surface which may be readily seen and thereby indicate to a purchaser that the closure has been tampered with.

In this form of the invention there is provided a ring 25 made of metal or other desired material, and this ring is provided with two pressed-out teeth 26 as shown in Fig. 8. It will, however, be evident that a large number of teeth could be used without departing from the invention. These teeth are really cam members which are adapted sion 31 fitting into the notch 33".

to engage the teeth or notches 24 as shown in Fig. 9, so that when the closure 21 is unscrewed or removed there will be a camming action between the teeth 24 and members 26. This will cause the section 6 to move upwardly faster than the closure 27 and consequently a break will result. It will be understood that there will be an angular strain as well as an axial strain and the result willbe the breaking at one or more points of the indicator 5.

Ring is provided with a pair of notches 23 and- 29 which interlock with lugs 30 and 3| formed as extensions of the member 20. This arrangement is to prevent the ring 25 from rotating when the closure 27 is rotated. When the closure 21 is first applied it will be understood that the preformed ring 25 is already in position, and that when the closure 21 is screwed down tight as shown in Fig. 7 the teeth or notched formation 24 will snap over the respective cams 01' teeth 26.

In Fig. 10 a slightly modified structure is shown to that illustrated in Fig. 9, wherein the ring 25' isv provided with not only cams 26 but cams or anchors 32 which engage notches 33 in member 20.

In Figs. 11 and 12 a slightly modified structure is shownto that illustrated in Fig. 8. In these two figures there is provided a depression 33 formed in member 20, said depression having beveled sides 34 and 35 whereby the depending portion 36 of the ring 25 may readily snap therein. This structure takes the place of the notches 28 and 29 and the lugs 30 and 3| shown in Fig. 8.

In Figs. 13 and 14 a slightly modified structure to that shown in Figs. 11 and 12 is shown, wherein the ring 25 is provided with a bent-down exten- The notch 33" has the sides beveled so that the extension 3'! may be swung outwardly against the wall 38 of member 6 for breaking the same substantially at the same time that the cam 26 produces a breaking action at the neck 9. In this form of the invention, as well as the other forms, means have been provided which will cause the indicator elementto be broken at some point when the closure is tampered with or when it is removed by an unauthorized person. It will therefore be seen that after the closure has once been placed in position it can not be removed and replaced by anyone without indicating this fact in a very decided and prominent way. This will prevent unauthorized persons from substituting inferior goods for those in the original package, and at the same time will guarantee to a purchaser that he is receiving the original goods placed in the container in untampered form. 1

I claim:

1. In combination, a container provided with a neck having threads thereon and an annular groove spaced from said threads, a closure formed with internal threads coacting'with the threads on said neck whereby said closure may be moved to a position for closing the opening. in said neck, said closure having a frangible extending shoulder and an apron thereon formed with a thickened beveled lower edge provided with an annular upper shoulder, and a ring positioned within said annular groove having means extending in one directionanchoring the ring to the neck, and breaking members extending in the opposite direction to a point engaging said shoulder whereby when said closure isrotated so as to unscrew the same said shoulder will coact with the last-mentioned members and cause said apron to move radially whereby it will become broken.

2. A device including a container having an externally. threaded neck affording an opening, a closure for said opening having an internal thread engaged with the external thread of the neck,

tion. 3. A device including a container having an externally threaded neck affording an opening, a closure for said opening having an internal thread engaged with the external thread of the neck, said closure having a frangible downward and outward extending portion including an apron having an inwardly beveled lower edge, said apron being formed with a lower edge portion-that provides an .internal upper shoulder, and means mounted on the container and having a downward and outward extending radially resilient portion arranged so as to be concealed and protected by said apron against external access, said resilient portion engaging and bearing downward on said shoulder so as to prevent removal of the closure without breaking the frangible portion.

4. A device including a container having an externally threaded neck affording an opening, a closure for said opening having an internal thread. engaged with the external thread of the neck, said closure having a frangible downward and outward extending portion including an apron, said ap-ron being formed with a lower edge portion that provides an internal upper shoulder, and means mounted on the container and having a downwardand outward extending radially resilient portion arranged so as to be concealed and protected by said apron against external access, said resilient portion engaging and bearing downward on said shoulder so as to prevent removal of the closure without breaking the frangible portion, said resilient portion being at a substantial angle so as to be upwardly and outwardly deflected on attempted removal of the closure to cause a downward and outward breaking stress on said apron.

JOHN HAMBERGER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2643015 *Dec 8, 1949Jun 23, 1953Dev Res IncTamperproof container closure
US4526282 *Jan 5, 1984Jul 2, 1985Sun Coast Plastics, Inc.Tamper proof closure cap, method, and tool for making same
US4552328 *Mar 1, 1985Nov 12, 1985Sun Coast Plastics, Inc.Mold for making tamper-proof closure
US4697714 *Apr 17, 1986Oct 6, 1987Tbl Development CorporationBreak-away container closure
US4767587 *Apr 17, 1986Aug 30, 1988Tbl Development CorporationHaving ribs and spaces in the frangible section
US4805791 *May 4, 1988Feb 21, 1989Continental White Cap, Inc.Band with lock ring for tamper-evident cap
US5285912 *Jul 9, 1993Feb 15, 1994Northern Engineering & Plastics, Corp.Snap on pull off tamper indicating flexible cap and neck configuration
US5307946 *Mar 24, 1993May 3, 1994Northern Engineering & Plastics, Corp.Neck finish for a container and a matching registering multiple thread pattern in a flexible cap for engagement on neck said finish
US5480045 *Aug 30, 1993Jan 2, 1996Portola Packaging, Inc.Neck finish for a container and a matching registering multiple thread pattern in a flexible cap for engagement on said neck finish
US5560504 *Nov 4, 1993Oct 1, 1996Molinaro; LucaSnap on pull off tamper indicating flexible cap and neck configuration
US6089390 *Jul 14, 1993Jul 18, 2000Closures And Packaging Services LimitedTamper evident closure
US6325225Mar 16, 1999Dec 4, 2001Closures And Packaging Services LimitedTamper evident closure
US6527132Jul 3, 1998Mar 4, 2003Closures And Packaging Services LimitedClosure with extended seal member
US6705479Nov 19, 2001Mar 16, 2004Closures And Packaging Services LimitedTamper evident closure
US6991123Feb 6, 2003Jan 31, 2006Closures And Packaging Services LimitedClosure with extended seal member
USRE37243 *Mar 22, 1996Jun 26, 2001Portola Packaging, Inc.Neck finish for a container and a matching registering multiple thread pattern in a flexible cap for engagement on said neck finish
WO1995006597A1 *Aug 30, 1994Mar 9, 1995Portola Packaging IncNeck finish for a container
Classifications
U.S. Classification215/252
International ClassificationB65D41/34
Cooperative ClassificationB65D41/3404, B65D2101/0076, B65D41/3442
European ClassificationB65D41/34D, B65D41/34A