US3127063A - Closure construction for container - Google Patents

Description

March 31, 1964 E. B. FAIRCHILD CLOSURE CONSTRUCTION FOR CONTAINER 2 Sheets-Sheet 1 Filed April 19, 1961 FIG-l INVENTOR. flw/A/ lupur/a'wwv/m BY L 5 March 1964 E. B. FAIRCHILD CLOSURE CONSTRUCTION FOR CONTAINER 2 Sheets-Sheet 2 Filed April 19, 1961 United States Patent 3,127,063 CLOSURE CGNSTRUQITHGN FUR CONTAINER Edwin Bradley Fairchild, 1055 Boranda Ave, Mountain View, Calif. Filed Apr. 19, 1961, Ser. No. 104,@63 6 Claims. ((111. 222-153) This invention relates generally to a closure construction for a product container. More particularly, this invention relates to a leak-proof container closure of the type which may be employed to permit or preclude product dispensing through a dispensing opening provided in the container closure, so that product may be removed selectively from the container in any desired quantity when the dispensing opening is free of restriction and so that the remaining product in the container may be subsequently retained therein upon blocking the dispensing opening.

Still more particularly, this invention relates to a container closure which is well adapted for use with spray type containers, that is, containers in which the product is to be dispensed therefrom as an aerosol mist or dust. The subject closure is particularly well adapted for use with a container in which a fluid or finely divided powdery product is retained which is to be dispensed in a fine mist or dust upon the container being squeezed When the product dispensing opening is free of restriction. In this connection, the subject closure has been found particularly Well suited for use with squeeze-type dispensing containers of plastic or paperboard, particularly of the type generally disclosed in US. Patent No. 2,609,126 dated Sept. 2, 1952.

However, it should be understood that, while the subject closure is well suited for use with squeeze-type containers for aerosol products, its use is not limited thereto, and the same may be used with squeeze or non-squeeze containers from which a product is to be dispensed in particulate or liquid stream condition.

As will be described, the subject container closure desirably has a generally flat silhouette when closed so that the same does not interfere with stacking of containers one on another.

The closure additionally includes means for initially locking the dispensing opening in the blocked or closed condition so that it is necessary to sever the closure in a predetermined manner before the dispensing opening may be freed of restriction to permit initial product dispensing therethrough. In this regard, such locking means insures a leak-proof container prior to severing of the closure before initial container opening. As a result, the ultimate consumer of the product can readily determine whether the container has been tampered with before purchase. Also, the initial locking feature of the closure positively precludes accidental opening of the container so that product spillage or leakage is precluded during shipping and handling.

Desirably for ease of manufacture and low cost, the subject container closure is of one piece resilient molded plastic construction, and is defined by a closure body comprising two body sections which are hingedly interconnected so as to be foldable one over the other. One of such body sections, as will be described, includes an apertured stopper plug which is to be substantially irremovably and lockingly received in an aperture provided in a preformed, substantially rigid container top which is affixed to and closes off an end of the container. Generally such container tops comprise preformed metal or plastic discs which are crimped over or otherwise secured to the end of the container bodies.

The second body section of the subject closure includes closure means for positively blocking the dispensing opening through the stopper plug, and the aforementioned lock means which is to be substantially irremovably engaged BJZZMB Patented Mar. 31, i964- with the container top to preclude opening of the dispensmg opening initially while the closure remains intact. As will be described in greater detail hereinafter, the lock ieans desirably includes a stopper shank adapted to be lockingly and generally irremovably received in a second aperture in the container top.

The closure means for blocking the dispensing opening may take various forms. In the embodiments of the container closure illustrated, such closure means comprises a small stopper shank'to be snap-lockingly engaged in the dispensing opening, or, alternatively, comprises a cap member to be snap-locked over the upper end of the stopper plug in dispensing opening blocking fashion.

As mentioned previously, the two body sections of the container closure are hingedly interconnected so that they may be folded relative to each other when the stopper plug is engaged with the container top so that the closure means may be located at its blocking position relative to the dispensing opening, and so that the lock means may be engaged with the container top.

Desirably, a predetermined portion of the closure body is provided which is of reduced thickness so as to be relatively easily severable. As a result, the two body sections may be operatively separated from each other to permit initial opening of the closed container. In this connection, it should be understood that following severing of the container body, the initial locking feature of the container closure is lost and thereafter the dispensing opening may be repeatedly opened or blocked as may be desired without requiring subsequent severing of the closure body. However, as noted above, by providing such initial lock means, inadvertent opening of the container prior to purchase by the ultimate consumer is precluded so that product leakage and the possibility of undetected tampering during handling or shipping is eliminated.

Following initial opening of the container closure by severing the body thereof, the aforementioned lock means is intended to serve as a pivot about the axis of which one closure body section may be rotated when it is desired to free the dispensing opening of restriction. When it is desired to reclose the dispensing opening, such one body section may be pivoted in the opposite direction so that the opening may again be blocked.

Because of the resiliency of the material chosen for the container closure, the opening and closing procedure may be repeatedly effected without destroying the eifectiveness of the closure and its leak-proof characteristics.

Used in conjunction with the container closure in the dispensing opening thereof are means for insuring proper location of a product dispensing tube. Such tube is to be extended downwardly from the closure to adjacent the bottom of the container to provide a passage through which an aerosol product may be dispensed as a dust or mist. Alternatively, however, in non-aerosol type containers, the dispensing tube may be omitted.

From the foregoing, it should be understood that objects of the present invention include the following: the provision of a novel, reusable container closure which is generally irremovably operatively engaged in leak-proof fashion with a container top; the provision of a container closure which includes lock means for positively precluding initial container opening without attendant severing of the closure; the provision of novel means on the container closure for precluding accidental uncovering of a product dispensing opening; the provision of a container closure which does not interfere with stacking of similar containers one on the other; the provision of a container closure which may be molded in one-piece strip fashion with similar closures for economy and ease of manufacture; the provision of a container closure which may be attached to a container top either prior to the application L) of the top to a container body or subsequent thereto; and the provision of a container closure which is effective to preclude leakage of product from a container, not only before the container is initially opened by also subsequent to initial opening, so that product wasting and mess are obviated.

These and other objects will become apparent from the following escription, in which reference is directed to the accompanying drawings.

FIG. 1 is a plan view of a series of the subject con tainer closures molded together in one piece strip fashion;

FIG. 2 is a plan view of a container top with which one embodiment of the container closure is partially operatively engaged;

FIG. 3 is a sectional view through the container top and container closure taken in the plane of line 33 of FIG. 2;

FIG. 4 is a vertical sectional view through a container body to which the container closure of FIG. 3 has been completely operatively engaged prior to initial opening thereof, such initially opened condition of the container being illustrated in phantom lines;

PEG. 5 is a plan view of an opened container closure with one body section thereof pivoted to free the product dispensing opening of restriction;

FIG. 6 is a vertical section through a container corresponding generally to FIG. 4, but illustrating a somewhat modified closure construction;

FIG. 7 is an enlarged view of a portion of the modified closure construction of PEG. 6, illustrating the operative engagement of the closure means with the stopper plug of the closure.

Referring first to FIG. 1, a plurality of a first embodiment of the subject container closure are illustrated with adjacent closures 1 being interconnected in strip form. Preferably a series of the subject closures 1 are molded in one piece strip fashion for ease and economy of manufacture. fter the molding operation, individual closures are severed from each other along predetermined lines 2. Any predetermined number of closures may be molded together, within the capabilities of available molding machinery. Separation of individual closures from a strip may be effected as desired, either before or during attachment of the respective closures to container tops.

As mentioned previously, desirably the subject container closures are provided from a sturdy yet resilient plastic material. Nylon, polyethylene or similar plastics are well suited for this purpose. The exact material chosen, however, may be varied or selected to meet a particular need.

As seen in FIGS. 2 and 3, each container closure 1 comprises a body defined by a first body section 3 and a second body section 4 which are hingedly connected together along a narrow reduced thickness hinge or web 6. Body section 3 is defined primarily by an apertured stopper plug 7 which extends in a first direction from the closure body. A product dispensing opening extends through stopper plug 7.

The second body section 4 includes the aforementioned lock means and closure means which, in this embodiment, comprise a pair of generally solid imperforate shanks 9 and 11 which extend from the closure body in the unfolded condition thereof in a direction opposite from that in which the stopper shank '7 projects. In this embodiment of the closure, the top 12 of stopper plug 7 is substantially planar. The surface 13 of the second body section from which the shanks extend also is substantially planar. As a result referring to FIG. 4, the second body shank, may be sna -locl ugly received in the dispen 'ng opening 5 of the stopper ping, while shank Al, hereinafter referred to as the lock shank, may be substantially irremovably snap-engaged with the container top.

In this latter regard, the subject container closure is to be operatively engaged with a preformed, generally rigid, apertured metal or plastic circular disc container top 16, the periphery of which is crimped at 17 over the end of the cylindrical Wall of a container 13 in the well known fashion. See FIGS. 3 and 4. The container top is provided with a pair of spaced apertures 19 and 21, each of which preferably is defined by an inwardly deformed frusto-conical depressed section which terminates in an annular edge. By using such a frusto-conical construction, tension may be applied to the lock shank 11 and the stopper plug 7 in the manner to be described to insure complete sealing of the container top apertures when the closure is operatively positioned.

In this connection, stopper plug 7 is provided with an annular lip 22 spaced a predetermined distance from the undersurface 23 of the first body section. Similarly, lock shank 11 is provided with an annular lip 24 which is spaced a predetermined distance from the aforementioned surface 13 of the second body section. Preferably the spacing of the respective lips of the plug and lock shank from the undersurfaces of the body sections is such that the plug and lock shank must be slightly elongated and depressed into the apertures in the container top so that the lips thereof are resiliently engaged with the annular edges of the apertures. Also, because the peripheries of the plug and lock shank above the lips are annular and of substantially the same diameter as the respective apertures, they snugly engage in leak-proof fashion the annular inner edges of the respective apertures and fill the same.

As seen in FIGS. 3 and 4, the dispensing opening 8 through the stopper plug is provided with an internal shoulder 27 whereby the upper portion 28 of the dispensing opening is of slightly smaller dimension than the lower portion thereof. The internal shoulder is provided so that an annular lip 29 on the stopper shank 9 may be lockingly yet releasably engaged with such shoulder when the second body section 4 is folded to overlie the first body section 3. The annular lip on the stopper shank 9- retains the shank in the opening and effectively precludes leakage of the container product through the dispensing opening when the stopper shank is operatively positioned.

The leak-proof effectiveness of the subject closure is enhanced by providing the first body section with an annular rib 31 about the periphery of the stopper plug, and by providing an annular ridge 32 about the periphery of the lock shank. The rib 31 and ridge 32 are snugly engaged with the container top about the peripheries of the respective apertures 19 and 21 when the closure is properly positioned.

It should be understood that when the closure body sections are folded to their operative positions seen in FIG. 4, the hinge Web 6, in conjunction with lock shank 11, will positively preclude removal of the stopper shank from the dispensing opening. That is, so long as hinge Web 6 remains intact and the lock shank is engaged with the container top, the stopper shank cannot be removed from the dispensing opening without destroying the closure. Furthermore, because of the substantially irremovable engagement of the lip iii of the lock shank and lip 22 of the stopper plug with the annular edges of the container top apertures, it is extremely difiicult to separate the closure from the container top once it has been snapped into operative position.

Accordingly, to initially open the ciosure following purchase of the container and its product by the consumer, it is necessary for the consumer to operatively separate the two body sections of the closure from each other. For this purpose, the reduced thickness hinge Web 6 is provided so that such severing may be readily effected. Also, reducing the thickness of the Web 6 permits the body sections to be folded into intimate contact as shown.

Sevcring of the hinge web may be accomplished by inserting a knife between the two body sections in the area defined by the folded hinge web. Alternatively, the hinge web may be perforated or otherwise weakened so that the same may be readily torn open without requiring a knife edge.

To facilitate removal of the stopper shank 9 from the dispensing opening, lateral grasping shoulders 33 are provided on the overlying body section 4 adjacent to the hinge web 6 by means of which the thumb and forefinger of the consumer may be employed to grasp the body section for raising the same upwardly as seen in phantom lines in FIG. 4. In this manner, the stopper shank may be removed from the dispensing opening so that pivotal movement of the body section about the axis of lock shank 11 to the position seen in FIG. 5 may be effected. When the body section 4 is in this position, the product may be dispensed through the dispensing opening.

Following dispensing of a predetermined amount of product from the container, the body section 4 may be pivoted counter-clockwise from the position seen in FIG. 5 about the axis of lock shank 11 to again bring the stopper shank 9 in line with the dispensing opening. Thereafter, the stopper shank may be resiliently pressed into the dispensing opening to seal the container in leakproof fashion until subsequent product dispensing is to be effected.

As seen in FIG. 4, the subject container closure either prior to or subsequent to initial opening in no way interferes with stacking of the subject containers 18 one on top of the other. This is a highly important feature of this invention, in that the flat silhouette of the closure permits positioning of a plurality of the subject containers in stacked fashion on market shelves, in the homes, and the like.

In this connection, it should be understood that each of the subject containers 18 in well known fashion is provided with a metal or plastic bottom closure disc 36 which is crimped at 37 over the b-omtom end of the container 13 in the same manner as that described previously with respect to the container top 16. However, the bottom closure disc is imperforate.

While generally the folded container closure of this invention does not extend appreciably, if at all, above the plane of the crimped container top 16, such top is depressed a predetermined amount into the upper end of the container, while the bottom closure 36 of the other container is recessed upwardly into the bottom end of the container. This provides a space of sufficient dimensions so that two containers stacked one on the other can readily accommodate the folded container closure therebetween without any interference therefrom.

As mentioned previously, the subject closure is well adapted for use with spray-type products to be dispensed as a mist or a fine dust. In this connection, insecticide powders or liquids are examples of the type of aerosol product well suited for dispensing with this closure.

To adapt the subject container to dispense a mist or spray, a dispensing tube 4 1 preferably is employed therewith. The upper end 42 of such tube is to be received in the lower portion of the dispensing opening 8 while the tube lower end 43 is received in the supply of product in the container. As seen in FIGS. 3 and 4, means is provided on the interior of the stopper plug in the dispensing opening for insuring proper positioning of the tube upper end 42 therein. In this connection, such means comprises a series of one or more spaced stop shoulders 46 extending into the dispensing opening from the Wall thereof against which the end of the tube is engaged as seen in FIG. 4.

Additionally, two or more spacer shoulders 47 also are provided on the inner periphery of the dispensing opening to be engaged by the periphery of the upper end 412 of the tube to maintain the tube spaced a predetermined distance from the wall of the dispensing opening. In this way, air may pass around the tube periphery between it and the dispensing opening wall to insure proper aerosol action. That is, when the container is squeezed to raise the internal air pressure, dust particles or liquid droplets will be forced upwardly through the tube while at the same time the air in the container above the product level will be forced from the container about the periphery of the tube to meet with the particles or droplets in the vicinity of the stop shoulders 46. This insures thorough mixing of the particles or droplets and air to produce the desired aerosol dust or mist effect.

If the container is inverted during the aerosol dispensing operation, the above situation will be reversed in that the product particles or droplets will pass between the tube and the wall of the dispensing opening while the air will be drawn through the tube from adjacent the inverted container bottom.

The tube upper end is frictionally retained in the dispensing opening of the stopper plug by means of its snug engagement with the spacer shoulders 47.

FIGS. 6 and 7 illustrate a modified closure construction which, while somewhat different in construction from the closure described previously, embodies generally the same principles thereof. The modified closure includes a stopper plug 51 to be resiliently engaged in the aperture 21 of a container top 16 in the manner described previously. The stopper plug is somewhat different in construction than the plug 7 described previously in that the same is provided with annular upper and lower depressions 52 which conserve material and which impart added resiliency to the plug. The plug defines the first body section and is provided with an annular lip 53 for the purpose mentioned previously. Plug 51 is hingedly connected along a thin sever-able hinge web 54 to the overlying lbody section 55 in the manner described previously. Such overlying body section includes a lock shank 56 preferably of essentially the same construction as the lock shank 11 described previously which includes a sealing lip 57.

Stopper plug 51 is provided with an upright extension 58 which, for purposes of description, may be defined as having a configuration similar to that of a bottle neck. As seen best in FIG. 7, the bottle neck extension of the closure is surmounted by an annular external rounded lip 59. It is through such extension 58 that the product dispensing opening 66 extends.

Intermediate the lock shank 56 and severable web 54 of the upper body section of the modified closure is provided closure means engageable with the lip 59 of the stopper plug. In this regard, such closure means comprises a generally outwardly convex cap member 61 which has a generally fiat top and flat inner surface bordered by an internal annular groove 62. which conforms generally to the curved outer periphery of the lip 59 of the stopper plug extension. The cap member 61 is to be snap-lockingly received over the top surface of the stopper plug for positively blocking the dispensing opening 6% provided she-rein, as seen in FIG. 6.

The modified construction of FIGS. 6 and 7 is employed in the same mmer as that described previously, with the dispensing opening 66 being positively initially blocked by the cap member 61 so long as the web 54 is retained intact. However, upon severing of the web 54, the cap member may be snapped from engagement with the stopper plug lip 59 and thereafter the body section 55 may be pivoted about the axis of stopper shank 56 to free the dispensing opening for product passage therethrough.

In aerosol containers, a dispens ng tube 41 is positioned in the dispensing opening 60 of the modified closure construction in the manner described previously to thereby adapt the same (for convenient and easy aerosol product dispensing.

From the foregoing, it should be understood that a highly effective leak-proof container closure, particularly adapted for use in combination with stackable spray type containers, has been provided which includes means for positively initially locking a container closed and which, after initial opening, may be repeatedly closed and opened to permit product dispensing from the container until the product is completely used.

Having made a full disclosure of this invention, refer ence is directed to the appended claims:

1. In combination with a product container top which has two spaced apertures therethrough, a container closure operatively engaged with said top; said closure comprising a closure body defined by two sections hingedly connected with each other along a severable web; one of said body sections underlying the other body section and including a stopper plug received in one aperture through said container top; said plug having retaining lip structure on its outer periphery engaged with the underside of said container top whereby said plug is generally irremovably retained in said one aperture, said plug having a product dispensing opening extending therethrough; said second body section including a lock shank which is received in the other aperture through said container top, said lock shank having retaining lip structure on its outer periphery engaged with the underside of said top whereby said shank is generally irremovably retained in said another aperture and is thereby generally irremovably engaged with said top under normal conditions, and closure means between said lock shank and said web, said closure means overlying and contacting said stopper plug and blocking the dispensing opening therethrough; said closure means being positively retained in engagement with said stopper plug of said first body section by said lock shank in conjunction with said severable web while said web remains intact so that said closure is initially retained positively locked; said closure means being disengageable from said stopper plug when said web is severed so that said second body section may be pivoted about the axis of said lock shank to free said dispensing opening of restriction when said closure is initially opened.

2. In combination, a one piece resilient plastic container closure, and a preformed container top having two spaced apertures therethrough; said closure comprising a body defined by two sections which are hingedly connected with each other along a severable web, a first of said body sections underlying the other and being engaged with an upper surface of said container top, said one section having a stopper plug depending therefrom which has a product dispensing opening extending therethrough, said stopper plug being generally irremovably received in one of said top apertures; the second body section overlying said first body section and including closure means blocking said plug dispensing opening, said second body section also including a lock shank depending therefrom which is generally irremovably received in the second of said top apertures, said lock shank in conjunction with said 'Web precluding separation of said body sections while said web remains intact so that said closure is initially retained positively locked; said closure means being disengageable from said stopper plug to free said dispensing opening of restriction upon said web being evered and said second body section being pivoted about the axis of said lock shank substantially out of overlying relationship relative to said first section so that said closure may be initially opened upon such severing.

3. In combination with a squeeze container for a spray product, said container having a generally rigid top which has spaced apertures therethrough, a resilient container closure operatively engaged with said top, said closure comprising a body defined by two sections hingedly connected with each other by a severable web, said web being of reduced thickness relative to said body to facilitate separation of said body sections along said web, one of said body sections underlying the other body section and including a stopper plug received in one aperture through said container top, said plug having retaining lip structure on its outer periphery engaged with the underside of said container top whereby said plug is generally irremovably retained in said one aperture and said aperture is substantially filled thereby, said plug having a product dispensing opening extending thercthrough; said second body section including a lock shank which is received in another aperture through said container top, said lock shank having retaining lip structure on its outer periphery engaged with the underside of said top whereby said lock shank is generally irremovably retained in said another aperture, and such aperture is substantially filled thereby, and closure means between said lock shank and said web, said closure means overlying and contacting said stopper plug and blocking the dispensing opening therethrough; said closure means of said second body section being positively retained in dispensing opening blocking relationship with said stopper plug by said lock shank in conjunction wit-h said web prior to severing of said web, said closure means being disengageable from said stopper plug when said web is severed so that said second body section may be pivoted about the axis of said lock shank to free said dispensing opening of restriction.

4. A one piece foldable and lockable container closure to be used in combination with and positioned in positive operative engagement with an apertured top of a product container, comprising a one piece closure body defined by two hingedly connected integral body sections which are rfoldable relative to each other along a hinge section positioned therebetween which interconnects said body sections, one of said body sections including a stopper plug having a product dispensing opening therethrough, said plug being generally irremovably receivable in an aperture through such container top under normal conditions; the other of said body sections including closure means for overlying an upper portion of said stopper plug for positively blocking said dispensing opening therethrough when said body sections are folded, and lock means on said other body section integral with and projecting laterally relative to said closure means generally opposite said hinge section, said lock means being generally irremovably interengageable with cooperable means provided on such container top for positive interengagement with said lock means when said body sections are folded, such interengagement between said lock means and such container top cooperable means when said body sections are folded and said closure is positioned in engagement with said container top normally positively precluding initial unblocking of said stopper plug dispensing opening so long as said body sections remain intact and hingedly connected with each other; and a severable section between said body sections along which said container closure may be severed to permit separation of said body sections so that said closure may be initially opened by permitting separation of said closure means from blocking relationship relative to said dispensing opening when said closure is severed.

5. The container closure of claim 4 for use in combination with a container top having two spaced apertures therethrough in which one of such apertures is provided to generally irremovably receive said stopper plug therein and in which the other of such apertures defines said cooperable means to be interengaged with said lock means of said closure, said lock means comprising a lock shank projecting from said other body section of said closure to be generally irremovably received in such other aperture, said lock shank providing a pivot about which said other body section may move after initial opening of said closure to permit repeated blocking and unblocking of said dispensing opening.

6. In combination with an apertured top for a product container, a one piece lockable container closure generally irremovably engaged with said top; said closure comprising first and second integral body sections foldably interconnected with each other by a hinge section therebetween, said body sections being folded relative to each other along said hinge section with said first body section underlying said second body section; said first body section comprising a stopper plug depending therefrom which is generally irreniovably received in an aperture in said container top, said stopper plug having a dispensing opening therethrough; said second body section including closure means overlying and positively blocking said dispensing opening through said stopper plug, and lock means on said second body section integral with and projecting laterally beyond said closure means generally opposite said hinge section and overlying said container top, said lock means being positively and generally irremovably interengaged under normal conditions with cooperable means provided on said container top for positive interengagement with said lock means, such interengagement of said lock means with said container top positively precluding separation of said body sections and unblocklng of said dispensing opening so long as said container closure remains intact, initial opening of said container closure being accomplished by severing said closure body; and a severable web between said body sections along which said container closure may be severed so that said closure may be initially opened.

References Cited in the file of this patent UNITED STATES PATENTS 2,031,006 R-oll ason Feb. 18, 1936 2,166,490 Gor-a July 18,1939 2,889,089 Herrick et a1. June 2, 1959 2,907,489 Taylor Oct. 6, 1959 2,991,913 Goth July 1 1, 1961 3,031,111 Stull Apr. 24, 1962

Claims (1)

1. IN COMBINATION WITH A PRODUCT CONTAINER TOP WHICH HAS TWO SPACED APERTURES THERETHROUGH, A CONTAINER CLOSURE OPERATIVELY ENGAGED WITH SAID TOP; SAID CLOSURE COMPRISING A CLOSURE BODY DEFINED BY TWO SECTIONS HINGEDLY CONNECTED WITH EACH OTHER ALONG A SEVERABLE WEB; ONE OF SAID BODY SECTIONS UNDERLYING THE OTHER BODY SECTION AND INCLUDING A STOPPER PLUG RECEIVED IN ONE APERTURE THROUGH SAID CONTAINER TOP; SAID PLUG HAVING RETAINING LIP STRUCTURE ON ITS OUTER PERIPHERY ENGAGED WITH THE UNDERSIDE OF SAID CONTAINER TOP WHEREBY SAID PLUG IS GENERALLY IRREMOVABLY DISPENSING OPENING EXTENDING THERETHROUGH; SAID SECOND BODY SECTION INCLUDING A LOCK SHANK WHICH IS RECEIVED IN THE OTHER APERTURE THROUGH SAID CONTAINER TOP, SAID LOCK SHANK HAVING RETAINING LIP STRUCTURE ON ITS OUTER PERIPHERY ENGAGED WITH THE UNDERSIDE OF SAID TOP WHEREBY SAID SHANK IS GENERALLY IRREMOVABLY RETAINED IN SAID ANOTHER APERTURE AND IS THEREBY GENERALLY IRREMOVABLY ENGAGED WITH SAID TOP UNDER NORMAL CONDITIONS, AND CLOSURE MEANS BETWEEN SAID LOCK SHANK AND SAID WEB, SAID CLOSURE MEANS OVERLYING AND CONTACTING SAID STOPPER PLUG AND BLOCKING THE DISPENSING OPENING THERETHROUGH; SAID CLOSURE MEANS BEING POSITIVELY RETAINED IN ENGAGEMENT WITH SAID STOPPER PLUG OF SAID FIRST BODY SECTION BY SAID LOCK SHANK IN CONJUNCTION WITH SAID SEVERABLE WEB WHILE SAID WEB REMAINS INTACT SO THAT SAID CLOSURE IS INITIALLY RETAINED POSITIVELY LOCKED; SAID CLOSURE MEANS BEING DISENGAGEABLE FROM SAID STOPPER PLUG WHEN SAID WEB IS SEVERED SO THAT SAID SECOND BODY SECTION MAY BE PIVOTED ABOUT THE AXIS OF SAID LOCK SHANK TO FREE SAID DISPENSING OPENING OF RESTRICTION WHEN SAID CLOSURE IS INITIALLY OPENED.

Images