Abstract: A container (1) having an open-ended and externally screw threaded cylindrical neck (4) is fitted with a closure cap (2) having an internal screw thread (10) adapted to cooperate with the thread (7) on the container neck and a planar end wall (8) adapted to form a seal with the open end (6) of the container neck. At least one of the opposing surfaces of the screw threads on the cap and the container neck is sufficiently inclined to the plane perpendicular to the axis of the neck of the container at an angle of at least 60° so that the screw threads can slip laterally on one another to enable the side wall of the cap or the neck of the container to deform when the cap is tightened onto the container to form a seal.

Abstract: A plastic container comprises a main body, a large-diameter member and a small-diameter-formed member. The main body is formed of a plastic laminate film into a tubular shape. The large-diameter-formed member is joined to the outer surface of the end of the main body by an insert-injection process. The small-diameter-formed member is jointed to the inner surface of the other end of the main body by the insert-injection process.

Abstract: An apparatus for retrofitting the opening of the neck of a bottle with a screw closure. An insert is provided that is configured to be positioned within the neck of the bottle for receiving the external threads of the lower end of a screw closure which is inserted into the opening of the bottle and rotated for securement therein. In one embodiment the insert may be secured in the neck by an adhesive. The positioning of the threads in the lower portion of the neck of the bottle affords a smooth and consistent pour of the wine from the bottle.

Abstract: A unitary plastic open head drum includes a cylindrical sidewall closed at a bottom end with a bottom wall and open at an upper end. A cylindrical chime is integrally formed with the sidewall at the open end. The chime comprises an annular wall having a thread extending helically about the annular wall. The thread has a depth of approximately ⅜ inch. The threaded drum cover is removably receivable on the cylindrical chime.

Abstract: A security closure (1) for a glass bottle (2), which can be fitted on the bottle (2) quickly and can be manipulated conveniently, comprises a cap (3) having internal threading (16) with a predetermined large number of starts mating with external threading (17) on the bottle (2), the cap being connected, by means of a line of weakening (10), to a sleeve (11) restrained axially and angularly on the bottle (2), the closure further comprising lead-in means (20) in the sleeve (11) mating with matching lead-in means (21) on the bottle (2) in order to orient the cap (3) and the sleeve (11) angularly relative to the bottle (2) when the cap (3) and the sleeve (11) are fitted axially on the bottle (2).

Abstract: Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.

Abstract: Extrusion blow molding apparatus (10) having a blow mold (12), a neck mold (14) positioned above the blow mold and an anvil (30) positioned in an outwardly facing cavity (32) of the neck mold. A container (C) is produced in the molding apparatus from a parison of a heated thermoplastic material by introducing pressurized blowing fluid into the container being formed by way of a blow pin assembly (16) that is reciprocable relative to the blow mold. The blow pin assembly has an inner tubular member (20) with a free end that is within the container during blowing, and an outer tubular member (22) that surrounds the inner tubular member and defines an annulus therewith for withdrawing spent blowing fluid from the container. The outer tubular member has radial ports (24) for directing spent blowing fluid against a moil (M) being formed at a rim (R) of a finish (F) of the container.

Abstract: A plastic blow molded container having a central vertical axis constructed in accordance with the present invention includes a cylindrical upper rim, an oriented neck portion, a lower body portion, and a closed base portion. The upper rim of the container includes a top surface having a planar inner edge and an outer edge. The inner edge is generally flat and perpendicular to the vertical axis of the container and the outer edge may be curled or curved to provide additional rigidity. The oriented neck portion depends from the upper rim and includes a means to accept a closure, such as a set of integral threads. When viewed in vertical cross section, the outer vertical line formed by the outer axial points of said means to accept a closure is substantially parallel to the vertical axis of the container. The lower body portion is generally cylindrical over the majority of its vertical length. The closed base portion supports the container and depends from the lower body portion.

Abstract: A cap and container assembly can be opened and closed repeatedly and continue to achieve a good seal between the cap and the container. The good seal results from the engagement, of the container neck with cap protrusions, which temporarily deforms the shape of the container and/or the cap as the cap is secured to the container.

Abstract: A cap and container assembly can be opened and closed repeatedly and continue to achieve a good seal between the cap and the container. The good seal results from the engagement, of the container neck with cap protrusions, which temporarily deforms the shape of the container and/or the cap as the cap is secured to the container, and from stopping surfaces which limit the extent of that deformation.

Abstract: A closure system for molded plastic containers having a threaded container neck, the closure system comprising a screw cap having internal threading constructed for threaded engagement with the threaded container neck, a gasket, means for retaining the gasket on the screw cap and an abutment surface integrally formed in and extending substantially radially from the container neck for sealably contacting the gasket, wherein the screw cap and the abutment surface are constructed so that downward axial rotation of the screw cap is effective to seal the gasket against the abutment surface.

Abstract: A method of forming a wide mouth blow molded thermoplastic container comprising the steps of i) stretch blow molding from a preform, an intermediate article defining the container with the mouth being threaded and/or flanged, the mouth terminating in an accommodation element having a neck finish that supports the preform in the blow mold; ii) heat setting the intermediate article including the entire container while still in the mold, and iii) removing the intermediate article of manufacture from the mold and severing the accommodation element to produce the container, and an article when made by the method. The method also includes post forming of a rim portion of the container following separation of the container from the accommodation element.

Abstract: A closure arrangement for a container has a container neck, having slanted grooves extending in a circumferential direction of the container neck. A removable cap has a clamping projection for each one of the slanted grooves, wherein the clamping projections slide in the slanted groove when the cap is removed from or fastened to the container neck. Each one of the grooves is delimited by two opposed slanted surfaces. The width of the slanted grooves measured in the circumferential direction matches the size of the clamping projections in the circumferential direction.

Abstract: The present invention relates to plastic tubes, and in particular to those which have a locking mechanism which comprises a locking cam and a latching cutout and which permits reliable latching of the tube cap to the tube. The invention also relates to plastic tubes which have a sealing strip which is constructed on the tube cap and, in accordance with the invention, can assume specific preferred embodiments.

Abstract: An apparatus for retrofitting the opening of the neck of a bottle with a screw closure. An insert is provided that is configured to be positioned within the neck of the bottle for receiving the external threads of the lower end of a screw closure which is inserted into the opening of the bottle and rotated for securement therein. In one embodiment the insert may be secured in the neck by an adhesive. The positioning of the threads in the lower portion of the neck of the bottle affords a smooth and consistent pour of the wine from the bottle.

Abstract: A closure cap for use in combination with a container outlet is configured with a child-resistant feature involving a pair of abutment projections formed as part of the container outlet and a pair of abutment ribs formed as part of the closure cap. The container outlet is externally threaded and includes a dispensing opening. The container outlet also includes an annular skirt which provides a support surface for the pair of abutment projections. The closure cap is internally threaded and the pair of spaced-apart abutment ribs are designed to ride over each abutment projection during the threaded advance of the closure cap onto the container outlet. During retrograde rotation of the closure cap from the container outlet, the abutment ribs are designed to abut up against the abutment projections. The abutment ribs are manually movable in a radially inward direction for taking each abutment rib out of abutting engagement with a corresponding abutment projection.

Abstract: The tamper evident closure of the present invention includes a twist cap made of plastic that comprises a top portion and an interior sealing means which coacts with the rim of the container neck to provide a gas-tight seal. The top portion also has an annular depending skirt which includes an interior retaining means to coact with an exterior retaining means on the neck finish of the container. The exterior retaining means of the container has a positive stopping means to coact with interior retaining means of the cap so that when the cap is screwed onto the container neck the positive stopping means is engaged at a predetermined level of sealing force and capping torque. The depending skirt also includes locking means which lock the cap into place after the container is sealed. The locking means coacts with the positive stopping means on the container to prevent the cap from being unscrewed or twisted off the container after it has been screwed onto the container neck.

Abstract: A closure for a container having carbonated or otherwise pressurized contents includes a top wall portion, and an annular depending skirt portion. An internal thread formation mates with a like thread formation of an associated container. To facilitate gas venting during closure removal, the container includes a plurality of axially extending vent grooves. Release of gas pressure during closure removal is facilitated by providing the closure with at least one, and preferably a plurality of rotation-inhibiting projections positioned adjacent to the internal thread formation. The projections interferingly engage with the vent grooves of the associated container, thus providing increasing frictional drag during closure removal to permit dissipation of gas pressure from within the container.

Abstract: The present thermoformed containers are recloseable and resealable. This is accomplished primarily by providing a thermoformed container with a threaded neck and the use of a conventional type of closure on the threaded neck of the thermoformed container. The threads are on the neck and preferably also on an outwardly extending peripheral edge on the neck. This outwardly extending peripheral edge is created in thermoform molding. The neck preferably also is in the form of a two or more ply structure and in a further preferred embodiment the neck is reinforced by the closure. The closure in the embodiment of external threads on the neck has a reinforcing plug. In this embodiment the reinforcing plug fits into the neck adjacent the inner wall of the neck while the threads of the closure contact the exterior wall of the neck. In the embodiment of internal threads on the neck the closure can have a skirt which is in close contact with the exterior wall of the neck. This will likewise reinforce the neck.

Abstract: A closure cap (210) including a tamper-indicating band (218) with an inwardly and upwardly turned retaining rim (224) having ramp elements (226), and the neck (240) of a bottle includes corresponding ramp elements (244).

Abstract: The present invention is directed towards a closure and container combination wherein the container has a collapsible neck finish. The collapsible neck finish consists of an upwardly extending neck having outwardly extending threads thereon and located above the threads is a spring bead, the spring bead having an outwardly bulged portion and an inwardly bulged portion. The closure for the combination has a retaining bead formed just below the top wall, the area in between receiving the spring bead of the container. The container and closure combination have interlocking structures comprised of locking lug and stop member on the container neck forming a recess therebetween which receives a locking tab on the lower periphery of the side wall of the closure. The interlocking structure is so formed that when the locking tab is located between the locking lug and stop member, the spring bead is firmly held in place below the top wall of the closure.

Abstract: A blown plastic container that includes a hollow plastic body, an integral blow-molded neck and an integral blow-molded finish with a radially outwardly extending blow-molded thread or bead for retaining a closure on the finish. Reinforcement is provided between the thread or bead and a ledge on the finish to prevent collapse of the finish when a closure is applied to the finish. In one form, this reinforcement includes blow-molded axial columns extending radially outwardly. In another form, the reinforcement includes geometric depressions. Preferably, the reinforcement is disposed circumferentially at equal spacing. When the container is trimmed, the finish may have an annular frustoconical radial ledge spaced form the open end of the finish. The reinforcement extends between the ledge and the lowest thread or bead, between the thread or bead, or for the full height of the finish above the ledge.

Abstract: There is disclosed a push-on closure-container assembly wherein a neck finish for a blow molded container of multiple external threads cooperates in a push-on operation with multiple internal threads of a closure wherein the number of leads of like pitch of the multiple-external threads of the neck finish in less than the number of leads of like pitch of the multiple internal threads of the closure and wherein the threads of the neck finish of the container are thicker than the threads of the closure.

Abstract: A child resistant cap including relatively thin threads which, when the cap is in a relaxed condition, are spaced from the bottle neck, said spacing permitting the cap to be squeezed inward at points on opposite sides of the cap so that the cap responds to the squeezing by expanding outward at points ninety degrees from the squeezing points so that stops on the cap at the cap expanding location will miss the stops normally engaged when in a relaxed condition, thereby permitting the cap to be removed from the bottle. The cap may also include a guide ring in the cap interior to guide the cap over the bottle neck to help ensure that the cap is centered on the bottle opening. The cap may include pressure pads on the cap skirt outside near the cap bottom showing the user where to press and stiffening the portion of the cap where pressure is to be applied. And, the cap may include a tamper indicating ring which will separate from the cap the first time the cap is removed from the bottle.

Abstract: There is disclosed a press-on bottle cap which is convertible to a screw reclosure lid. The cap is formed with a circular disc having an integral, downwardly dependent circumferential skirt. The skirt has a raised helical bead on its inside wall which extends an angular increment from 270 to about 400 degrees and a raised circumferential bead located beneath the helical bead and at least one tear line defined by a circumferential band of weakened strength located between the circumferential and helical beads. A tear tab extends from the outer wall of the skirt adjacent the tear line which can be pulled by the user to sever a reclosure lid having the helical bead which can be threaded onto the neck of the bottle to seal its contents. For this purpose, the undersurface of the disc of the cap has a compressible sealing gasket which is engaged by an annular lip of the upper end of the bottle neck.

Abstract: A storage container for containing liquids that harden, that comprises a threaded surface and a closure having threading complimentary to the threads of the storage container, wherein the threads of the threaded surface are coated with a non-stick coating to prevent the liquid from hardening on the threads of the container and bonding the closure with to the container.

Abstract: A container and closure assembly, affording a simple, quick, ergonomical, and reliable closing operation, provides an intermediate, partly open position that is reliably indicated. The distance of rotation of the closure relative to the container necessary for closing the closure is short, so that quick and simple closing of the container is provided. The closure is mounted to the container by a projection that is cooperatively received in a track. Either the closure or the container may be provided with the projection, the other being provided with the track. In a preferred embodiment, the track includes a protuberance that hinders the movement of the projection past a predetermined position along the track.

Abstract: A hot fillable plastic container having a body with a neck surrounding a dispensing aperture, the neck having an inner wall and an outer wall spaced therefrom to thereby provide a gap between the inner wall and outer wall which functions as a thermal insulation means. The neck is thus able to better withstand the temperatures encountered during the filling operation without deformation.

Abstract: A child resistant adult friendly container and closure device is provided with a pivot arm on the container which engages a detent on the closure. The pivot arm carries on one end a press tab and on an opposite end a locking lug. The locking lug engages with the detent to prevent the closure from being rotated in an opening direction. To open the closure, the press tab is manually depressed, causing the pivot arm to pivot about a point on the container such that the locking lug disengages from the detent on the closure. The closure can thus be unscrewed in a opening direction to obtain the contents of the container.

Abstract: A method of forming a wide mouth blow molded thermoplastic container comprising the steps of i) stretch blow molding from a preform, an intermediate article defining the container with the mouth being threaded and/or flanged, the mouth terminating in an accommodation element having a neck finish that supports the preform in the blow mold; ii) heat setting the intermediate article including the entire container while still in the mold, and iii) removing the intermediate article of manufacture from the mold and severing the accommodation element to produce the container, and an article when made by the method.

Abstract: A closure is provided with a thread configuration adapted for snap-on or screw-on application to a container neck finish. Preferably the closure and neck finish contain eight or nine mating continuous or discontinuous threads for this purpose. The present invention preferably provides at least one annular sealing bead depending from the outer surface of the closure valve which are compressed against the inner surface of the container neck to form a seal as the closure is snapped onto the container neck. Optionally, sealing engagement between the closure and the mating portions of the exterior wall of the container neck may be further improved by including one or more annular sealing beads on the interior surface of the closure depending annular skirt.

Abstract: Bottle necks for screw-off caps are provided with external threads to mesh with internal cap threads and external ratchet teeth to engage internal cap ratchet teeth. When the neck is formed of a rigid material (e.g., PET), the sharp corners of the intersecting flanks of the teeth are hazardous. To reduce the chance of injury, in accordance with this invention the corners are rounded off in a radius having its center offset from the intersection of the working flank of the tooth and the minor ratchet diameter without detrimentally reducing the length of the working flanks. Ratchet teeth are usually located in one of two diametrically disposed quadrants. The first or transition tooth of each quadrant has a greater radius than that of subsequent teeth and its center is inset toward the neck axis.

Abstract: A sealing arrangement is provided having a container neck having a sloped land surface. The sloping land surface is configured to prevent the liner from slipping across the land surface when the cap is applied to the container. The cap has depending downwardly from its inner surface an annular bead positioned relative to the land surface such that, when the cap is applied to the container, the bead extends down into the mouth of the container radially inwardly of the land surface. The land surface, together with the bead, stabilize and stretch the liner upon application of the cap, urging the liner to conform to the land surface. At least one sealing rib depends downwardly from the lower surface of the cap to provide additional sealing force between the liner and the land surface.

Abstract: A container and a removable closure, the container having an outlet with an inner and outer surface terminating at one end in a rim. The closure includes an end wall with an inner and outer skirt extending therefrom, the inner and outer skirts defining between them a slot which when the closure is applied to the container receives the container rim. The inner skirt includes a sealing section, and a deflecting section in the region of the free end of the inner skirt. The cross-sectional areas of the region and the cross-sectional area of the inner surface of the outlet being such that when the closure is applied to the container the deflecting section of the inner skirt engages the inner surface of the outlet to force the inner surface of the outlet adjacent the rim into sealing engagement with the sealing zone to seal the closure to the container.

Abstract: The invention provides container closure assemblies, especially for carbonated beverage containers, having substantially helical second thread segment (20) with a profiled lower thread surface (24). The profiled lower thread surface (24) includes a first, lower region (28) with a low pitch and a second region (30) with a steep pitch. The thread (20) may also include a step feature (32) to block unscrewing of the closure at an intermediate position where gas venting can take place, and a third region (34) of the said lower surface having a low pitch adjacent to the step. The closures are easy to apply and remove, and do not blow off unpredictably or uncontrollably under pressure.

Abstract: Thin wall metal cans are described having threaded necks attached thereto for receiving threaded closure to seal contents in the cans. Techniques for forming such threaded cans are also provided.

Abstract: A thin wall metal can is described having a converging neck portion and cylindrical chimney with a threaded sleeve encircling the chimney and restrained from rotation on the chimney by splines on an inner surface of the sleeve firmly engaged against an outwardly projecting shoulder on the can between the neck portion and chimney. The sleeve receives a threaded closure for closing and sealing the can.

Abstract: For improving the venting behavior of containers with beverages containing carbon dioxide, a container finish (1) and a closure (11) is provided with a twin-start thread. The thread comprises in each case two threads (3, 13) which extend over an angle of 240.degree. to less than 360.degree., preferably 280.degree., and which are arranged so as to be displaced at 180.degree.. In this way, initial or first sections (5), in which the threads (3) overlap each other vertically, are formed on the outside surface (2) of the container finish (1), as well as second sections (6) in which, vertically, only one thread (3) is arranged. On the inside surface (12) of the closure (11), initial or first sections (15) are formed in which the threads (13) overlap each other vertically, as well as second sections (16) in which, vertically, only one thread (13) is arranged. In each of the sections (5, 6, 15, 16), at least one venting recess (4, 14) is arranged per thread, said venting recess interrupting the threads (3, 13).

Abstract: In a method for manufacturing flexible plastic containers by two die molds, in the connecting seam of which at least one insert for filling and/or emptying the container is introduced, comprising press faces running perpendicular to the wall of the container, the angle of the press faces is greater than 90.degree., preferable nearly 180.degree. at each locus of connection to the die molds, with regard to the connecting seam of the two die molds.

Abstract: A tamper resistant bottle cap and neck for a threaded blow molded bottles which hold liquid, such as milk. The bottle cap and neck combination has an enhanced tamper evidency feature wherein a circumferential lip is formed at the outside edge of the interface between the cap and the neck. The lip protects the contents of the bottle by limiting the ability of potential tamperers to pry or bend upwardly the rachet ring at lower edge of the cap.

Abstract: A plastic tube with a tubular tube body which is connected through a shoulder to a neck having an external thread and with a screw cap which can be screwed with an internal thread onto the external thread of the neck. The shoulder is injection molded onto the corresponding end of the tube body, wherein the shoulder and the externally threaded neck are constructed in one piece. The shoulder and the adjacent end of the tube body have a polygonal cross-section and the same polygonal cross-section continues over the length of the tube body. At least two side surfaces of the tube body extend from this transition point essentially plane or with a straight surface toward the end of the tube.

Abstract: A tamper-evidencing, snap-on, screw-off closure is used with a specially shaped container neck. The neck has a neck stretch with multiple neck threads and a locking wall below the neck stretch with a plurality of external teeth. The closure has an upper skirt with multiple closure threads which mate with the neck threads and a tamper-evidencing band with a plurality of internal teeth shaped and positioned to engage the external teeth. The teeth are shaped to guide the teeth into side-by-side interengage during axial application of the cap to the neck.

Abstract: A tamper-indicating closure is used with an associated container having a finish having an external thread formation thereon, and an annular locking ring located axially under the thread formation. The closure includes a closure cap having a circular top wall portion defining an outermost edge and a top wall extension region. The closure cap includes an annular skirt portion depending from the top wall portion inwardly of the outermost edge. An internal thread is formed in the skirt and defines a skirt wall plane. The closure includes a plurality of ribs extending from the top wall extension region to define an enlarged grasping region to comfortably fit a user's hand. An annular tamper-indicating band depends from the cap and is detachably connected to the cap by a plurality of circumferentially spaced, frangible connectors extending between the band and at least some of the ribs. The band includes an internal surface configured for engaging the locking ring and separates the band from the skirt portion.

Abstract: A container made from a rigid, polymeric material, or from glass or metal, has a frusto-conical or cylindrical wall defining an outer thread and having an upper edge, which defines a sealing bead extending circumferentially and having a cross-section conforming to a circular arc of more than 180.degree.. A closure made from a comparatively resilient, polymeric material has a circumferential recess adapted to receive the sealing bead with a snap fit so as to prove a liquid-tight seal. The closure has a frusto-conical or cylindrical skirt defining an inner thread. A reinforcing bead at a lower edge of the closure skirt clears the outer thread when the closure is snap-fitted or screwed onto the container and provides the closure skirt with sufficient hoop strength to prevent the inner thread from snapping upwardly past the outer thread upon relative rotation of the closure and the container to unscrew the closure from the container.

Abstract: A laboratory flask is designed for the growth of tissue, cells or microorganisms in a culture medium. The flask includes a bottom wall which accommodates the culture medium. The interior of the flask is accessible from an opening in a side wall through a neck extending outwardly therefrom. The neck of the flask is raised above an upper planar surface of the flask, so as to maximize the height between the neck and the bottom wall, thereby permitting an increase in the usable volume of the flask. The inner wall surface of the neck includes a depending filler wall extending between the inner wall of the neck and the upper planar surface of the flask to fill a gap which would otherwise exist therebetween. The flask permits accommodation of a standard screw-threaded cap to close the neck.

Abstract: The present invention provides a retortable container which has an engagement ridge (19), of an outer diameter D.sub.1 smaller than an inner diameter D.sub.2 of a thread of a cap (20), formed on the outer circumference of the neck (13) near the top face thereof and an engagement portion (26) having an engaging hook (26a), capable of engaging with the engagement ridge (19) of the neck (13) under the condition that engagement of the neck (13) and the cap (20) is completed, being formed integrally therewith on the bottom surface of the top wall (21) of the cap (20), whereas the engagement portion (26) is formed in a shape of cylinder having a wall thickness smaller than the wall thickness of the circumferential wall (28) of the cap (20), and the engaging hook (26a) protrudes in an annular shape inwardly from the open bottom end of the engagement portion (26).

Abstract: A preform, a process for forming the preform and a container formed from the preform are disclosed. The preform comprises a tubular body portion having an open end and a closed end. At a location near the open end, a flange extends outwardly from the tubular body portion. A closure retaining element is provided for engaging a closure. The closure retaining element is formed separately from the tubular body portion and includes a manner for attachment to the tubular body portion. The closure retaining element is attached to the tubular body portion adjacent the flange via the manner for attachment.

Abstract: A sealing device comprises a container and a synthetic resin cap attached to the mouth portion thereof. The synthetic resin cap has a cap main body composed of a top plate portion and a tube portion extending downward from the periphery thereof, the tube portion being separated by means of a tearable weakening line into an upper main portion and a lower tamper-evidence ring portion, a threaded portion being formed on the inner wall surface of the main portion, and erectable engaging projections being provided on the inner wall surface of the tamper-evidence ring portion.

Abstract: A squeeze contour seal assembly includes a container and a cap. The container has a neck portion which forms an opening. The neck portion has first and second wall thicknesses and screw threads for engaging the cap. The first wall thickness is greater than said second wall thickness. The cap has grooves for engaging the screw threads and a plug seal for releaseably engaging the opening when the screw threads and the grooves are threadably engaged. The second wall thickness engages a slot formed between the plug seal and the cap, thereby creating an interference fit between the neck portion and the plug seal and providing a leak free seal.

Abstract: A bottle cap assembly, comprising a main portion, and a lid. The main portion and lid are attached by a hinge. The main portion is selectively secured to the lid with a latch, the latch opposite the hinge. The main portion has a central bore, and the hinge has a plug which fits in the central bore when the cap is closed. The central bore has internal grooves, and the plug has protuberances which match the internal grooves to effect a tight seal between the central bore and plug. The main portion further has an upper groove, and the lid has a ring which fits in the upper groove. The ring is larger in diameter and concentric with the plug. At least one opening preventer attaches between the lid and main portion to prevent inadvertant opening of the bottle and for revealing tampering to the bottle, since the opening preventer can be opened once, and then cannot be restored.