Abstract: A closure (10) is shown including a U-shaped handle (27) integrally connected to a cap (22) in turn integrally connected to the end wall (18) of a bottle (12) to seal the opening (20) formed therein. The handle (27) includes a lever element (28) in the preferred form of a hollow body (30) integrally connected to the cap (22) by a web (32) and for providing leverage in twisting the cap (22) off the end wall (18). First and second wings (36) are integrally connected to the lever element (28) for increasing the size of closure (10) to be larger than a small part. In the preferred form, each of the wings (36) includes a solid trailing portion (44) and a hollow tube (38) in fluid communication with the hollow body (30). The trailing portions (44) are compression molded by the mold halves (54) utilized to blow mold the bottle (12). The hollow tubes (38) are compression molded and thermoformed in the mold halves (56) forming the end wall (18), the cap (22), and the lever element (28).

Abstract: To assist a person having reduced manual dexterity in removing a twist closure from a container, the closure comprises a first tab extending upright from an upper surface of the closure to a height suitable to engage the forearm near a central portion of the ulna, and a second upright tab having the same height and being positioned on the upper surface to be on an opposite side of the forearm and longitudinally offset to allow the forearm to press against the tabs and provide an opening torque. A forearm of the person is positionable on the closure with the ulna of the forearm over the upper surface and the first and second tabs extending upright on opposite sides of the forearm, such that the closure can be opened by putting weight using the forearm on the upper surface with the container on a fixed surface and turning the forearm within the first and second tabs. No forceful digital, manual or carpal movements are required to remove the closure.

Abstract: A content immobilizer includes an immobilizing medium, such as cotton, and a plastic integrally formed pull member, operatively coupled through the immobilizing medium, wherein the pull member has a flexible portion adapted to resiliently extend above an upper rim surface of the mouth of a bottle after removal of the closure. The pull member may also laterally compress and expand to frictionally engage with an interior wall surface of the bottle to secure the pull member in a predetermined position. A method for forming the content immobilizer includes inserting the pull member through the immobilizing medium, inserting the content immobilizer into the bottle such that at least a portion of the pull member extends out through the mouth of the bottle, and applying a closure, such as a tamper evident seal, a cap and/or both, over the mouth such that the portion of the pull member resiliently couples to a bottom surface of the closure.

Abstract: A container closure assembly having a container neck and a closure for said container neck. The closure is retained on the container neck by a screw thread on at least one of the closure and the container neck. A sealing mechanism is provided for forming a seal between the closure and the container neck when the closure is at a sealing position on the container neck. Furthermore, there is an urging mechanism co-operating between the closure and the container neck when the closure is near the sealing position to urge the closure into the sealing position independently of whether an external closing torque is being applied to the closure, and thereafter the urging mechanism maintains the closure in the sealing position until a sufficient external release force is applied to the closure.

Abstract: A closure for a tubular administration port is formed by inner and outer members having upper ends joined together in sealing relationship. The inner member has a sealed bottom end and is configured to fit within the administration port. The outer member is configured to engage about an exterior of the tubular port. The inner member includes radially outwardly extending ribs that engage against the interior of the administration port in an interference fit relationship.

Abstract: A child-resistant closure for a container includes a cap constructed and dimensioned such that it can be gripped and moved to open the container by the hand of the size of an adult but not of a child.

Abstract: Microcentrifuge tube having a container having a round opening and a frictionally seated lid hingedly connected by a fixed-hinge to the container, the lid having an upper lid surface and being sized and shaped to cover and seal the opening to maintain the inside of the tube free of any contaminant. The lid has a lid extension extending upwardly from the lid surface and outwardly away from the hinge in such a manner which allows the lid to be unseated and moved from the opening of the container when mechanical pressure by a user's finger is applied to the lid. The lid further has a guard portion extending downward from a portion of the lid and configured and arranged adjacent the container to act as a finger guard to prevent a user's finger contacting the container.

Abstract: An improved child-resistant package allowing improved access and closure by the user is provided. The improved packages is of the press-and-turn type and features ramped gripping portions on the perimeter of the side of the press-and-turn cap and on the bottle.

Abstract: An infusion bottle having a partial section of its bottom wall which bulges outward in a cup-like manner and which can be pierced in the region of its bottom wall by an infusion spike. A cup-shaped cover cap is provided which can be placed thereon from the outside and connected in liquid-tight manner. The cover cap has a cover bottom with a central region which can be removed. A clamping ring for the infusion spike is located between the cover bottom and the bottom wall of the bottle. The clamping ring is in the form of an O-ring and has an inside diameter which is smaller than the diameter of the central region. The clamping ring contacts the bottom wall of the bottle and the cover bottom with initial tension and has an outside diameter which is greater than that of the central region.

Abstract: An easy open container which is also child resistant provides for a cap for attachment to the container. The cap contains an indent for retaining the cap on the base. On the neck of the container there is contained a lip which retains the indent thereon so that the cap is child resistant. In addition, the cap is also easy to open in that extending from the cover portion of the cap is a flange, which provides for an easy to grip mechanism so that an arthritic user is able to grip the cap and align the detent with a discontinuity in the lip.

Abstract: This invention relates to a tamper evident inner seal for use on bottles, jars and other types of containers. More specifically, this invention provides a means for rendering a heat or adhesive sealed liner tamper evident by enabling the liner to tear upon removal or opening, while providing a peelable seal that does not leave seal residuals attached to the container.

Abstract: An injection molded threaded cap for use with containers of varying dimensions. The cap of the present invention includes a cover from which depends an integral plug. An auxiliary sealing ring is disposed at the outside base of the plug to compensate for differences between the diameter of the plug and the diameter of the opening to be sealed by the cap. To prevent doming of the cover of the cap, the underside of the cover has shrinkage resistance formations which provide the cap with structural resistance to the effects of shrinkage. The cap of the present invention further includes a ratchet ring having ratchet teeth designed to enhance the tamper-evidency of the frangible ratchet ring. In an alternative embodiment, the cap includes a thread form which reduces the amount of rotation required to install the cap onto a bottle neck.

Abstract: A child resistant package includes a snap-on closure of rigid and stiff material on a container having a neck finish with an annular locking rib having at least one notch. The closure has a locking lug extending radially inwardly from its skirt in alignment in a fire position with the notch upon rotation of the closure to permit removal of the closure when in the fire position. A finger tab extends radially outwardly from the skirt in alignment with the locking lug, and the skirt has rib structure extending radially inwardly from the skirt circumferentially spaced from the locking lug. The locking rib and rib structure having coacting cams for resiliently expanding the skirt upon snap locking the closure to the neck finish and upon removal of the closure. The locking lug and the rib structure are interengaged with the locking rib upon snap locking and the rib structure becomes disengaged from the locking rib upon removal of the closure.

Abstract: The improved structure for the external cap of a spout used in waterbeds has a cap body with a slot opening, and two flanges with punched holes extending from the edge of said external cap. The two supporting legs of a hand grip can feed through the punched holes of the flanges and move freely. The user can pull up the hand grip to rotate the external cap body in order to open or close said external cap. The horizontal portion of said hand grip has a T-shaped sectional surface which can be partially adapted into the slot; the bottom end portions of the supporting legs have inverted hooks on both sides to avoid the hand grip from disengaging with the external cap.

Abstract: A child-resistant container closure constructed according to the present invention comprises a disk shaped cover plate attached to body section formed as a substantially cylindrical wall. A movable handle or tab is attached to the cover plate to aid a user in pulling the closure from a container in which the closure is installed. A well or recess is provided in cover plate to house the handle in a closed position. A ridge on the end of the handle cooperates with a mating ridge in the wall of the recess to retain the handle in a closed position. A resilient spring is provided in the recess so that when the handle is released from the recess, it is urged into a position in which it may be conveniently gripped by a user. An undercut groove or notch is provided on the outside surface of the cylindrical wall adjacent the cover plate. The notch engages a mating lip or ridge extending inward from the inner surface of the mouth of the product container to secure the closure to the product container.

Abstract: A multilayer innerseal having a grip tab extending across the innerseal. Force applied to the grip tab is concentrated at the base of the grip tab and promotes a complete failure of the innerseal. In use, a substantial portion of the original innerseal remains adhered to the container to providing evidence of tampering and to frustrate efforts to reseal the container.

Abstract: A container and pressure sealing closure combination in which the closure includes a rim portion engaging the mouth of the container, a substantially rigid central portion and an annular toggle portion pivotally connected to and interconnecting the rim portion and central portion, whereby upward movement of the central portion in response to internal pressure of the contents of the container pivots the toggle portion to urge the rim portion substantially radially outwardly against the mouth, thereby effecting a seal. In a preferred embodiment, the inner surface of the container mouth includes a plurality of axially-extending channels for conducting pressurized gaseous contents of the container between the closure and the container to the ambient. The outer surface of the mouth includes an annular recess which receives a plurality of radially inwardly projecting ribs on the rim portion, thereby effecting engagement between the closure and container.

Abstract: The present invention is directed to a cap or closure for a container. The closure includes a top surface devoid of an opening, a downwardly extending apron arranged about the periphery of the top surface, and a grasping tab. The top surface and apron define therebetween an interior area which is adapted to receive the opening of a container. The grasping tab is hingedly attached to the top surface of the closure and is positionable between an extended condition and a stored condition. When the grasping tab is in the extended condition, the tab may be grasped between the fingers of the user's hand.

Abstract: An oil container includes a container structure having a spout mounted to a top wall of the container, with the spout tangentially aligned to a forward wall, a groove directed into the spout, with a pull string directed through the groove, the string including a first end secured to a slot slidably mounted to a second end wall of the container, with a second end of the pull string mounted to a foil seal over the spout. In this manner, displacement of the slide along the second end wall of the container displaces the foil seal permitting fluid flow from the container when in an inverted orientation preventing spillage from the container.

Abstract: A microcentrifuge tube or other thermoplastic sample container having a round opening and a frictionally seated sealing lid, the lid having a size and shape to cover the perimeter of the tube opening and maintain the inside of the tube free of any contaminant. The lid viewed on an upright closed container has a downwardly extending annular portion shaped to sealing fit inside the opening, the lid further having an integral upwardly projecting lid extension configured and arranged on top of the lid to facilitate aseptic opening, grasping and identification-labeling of the container. The location, angle and size of the lid extension allow mechanical pressure to be used on top of the lid, rather than beneath the lid, to open the container. The improved apparatus and method for opening the container functions to prevent sample contamination which could otherwise occur when a fingernail or other container opening instrument is inserted beneath, and contacts some portion(s) of the underside of the lid.

Abstract: A container closure assembly is disclosed including a tamper evident ring. The ring is initially substantially concealed by the closure when the closure is first fitted to the neck of the container. After the occasion on which the closure is first removed from the container neck, the tamper evident ring remains substantially visible on the container neck when the closure is replaced on the neck. The closure may include a recess for receiving the ring to conceal the ring, and releasable holding means for retaining the ring in the recess until the closure is removed for the first time. The ring may be slidably retained on a portion of the container neck.

Abstract: A container neck (14) and a container closure comprises a first thread (15) on one of the neck and the closure, a complementary second thread on the other of the neck and the closure such that the closure is moveable from fully disengaged from the neck to fully closed by turning the closure relative to the neck by less than 360.degree.

Abstract: The present invention is for a method of forming means to remove a seal that has been affixed to a collapsible tube in accordance with the method shown in U.S. Pat. No. 4,938,818. A laminate removal tab is cut integral with the seal when the seal is cut, and then bent out of the way along the tube neck when the seal is welded to the tube mouth. The seal is easily lifted and grasped by the fingers to pull the seal off the mouth.

Abstract: A child resistant dispensing closure having a cap and a spout mounted thereon for rotation about a substantially horizontal axis. The upper surface of the spout is provided with a plurality of ribs, each of which has a distinct energy plane. Only one rib, usually, the rearmost, allows sufficient purchase to produce the force vector necessary to initiate rotation of the spout when a manual force is applied thereto. The cap includes a cylindrical skirt with a frusto-conical section extending upwardly therefrom. A protective flange extends upwardly about the perimeter of the upper end of the frusto-conical section to deter unauthorized access to the spout. The upper wall of said cap is canted at an acute angle to a horizontal plane passing through the cylindrical skirt of the cap, so that the spout is further recessed within the protective flange.

Abstract: A container cap includes a cylindrical cap portion to secure to an upper distal end of an externally threaded beverage container and the like. The cap structure includes a top wall orthogonally oriented relative to an axis of the cap, and is further formed with a central boss coaxially aligned and diametrically positioned relative to the top wall to include first and second ring members that are diametrically aligned with the top wall and relative to one another to permit manual insertion of an individual's fingers to assist in the removal and application of the cap structure to the beverage container. A modification of the invention includes a vent member arranged to permit ease of ascertaining freshness of a fluid within the beverage container by permitting depressing of an associated valve structure directed through the central boss.

Abstract: A bottle assembly for storing and retailing a liquid substance such as fabric bleach that generates gases when it is heated or contaminated. The bottle of the assembly has a neck on which a closure cap may be screwed. The neck is closed by a peelable seal made of porous plastic foam such as polystyrene, which is fixed by a pressure adhesive across the neck and sized so as to be easily graspable and peelable with two fingers with a reduced risk of contact with the substance within the bottle. Another seal made of the same porous foam is freely mounted within the cap to allow the bottle to be sealed again in a permanent manner after the peelable seal has been removed. Both seals prevents the bottle from bulging and from leaking if it is inadvertantly knocked over.

Abstract: A child-resistant, two-piece closure is formed with a resilient wedge in the outer cap member which can be pressed into interlocking relationship with an upstanding locking lug element of the inner cap member to facilitate rotational movement in the closure loosening direction by a healthy adult. An aperture is provided in the outer cap member so that a pencil may be radially inserted therein and into contact with the upstanding locking lug element so as to interlockingly couple the outer cap member and inner cap member for rotational movement in the closure loosening direction with the pencil by an elderly or handicapped individual. The child-resistant closure serves as a duel function device by allowing push-in and turn closure removal by healthy adults and easy removal with an inserted pencil or the like by elderly or handicapped adults while still being resistant to removal by young children.

Abstract: An improved container for dispensing fluids wherein the container is provided with a conventional pouring spout along with a protective peel seal for retaining the contents of the container intact. An elongated pulling device is secured at one end to the seal and is adapted for applying force from a remote position to removably peel the seal from the container, therey disgorging the contents while the container is in an inverted position.

Abstract: A single service container having a closure cap with a recessed portion extending generally interiorly of said container. A tab is defined by a score line which, upon deflection of a an actuating member on the cap, substantially separates from the remainder of the recessed portion forming an opening in the cap. Once the tab has been separated, it is deflected through the opening and prevented from obstructing the opening by the actuating member being positioned in an interference relationship between the interior of the container, adjacent the opening, and the tab.

Abstract: The invention relates to a multi-layered thermoplastic container 1 opened by the partial peeling back of a multi-layer top 6 which has been heat-sealed onto the edge 3 of the container 1 including a peeling tab 7. The peeling tab 7 has a scalloped area cut into its edge 3 in such a way as to delimit a grip cavity which is open toward the side of the top 6 and of the edge 3, and, facing the area where the internal sheet 9 of the top 6 and the internal layer 4 of the container 1 meet. The intermediate sheet 10 has a tearing edge enabling the internal sheet 9 to be torn.

Abstract: A screw-cap type container comprises a container or bottle having a screw thread and an annular flange formed on a neck thereof. The flange is discontinuous to define a locking slot between its opposite ends. A closure cap has an internal screw thread for engaging the screw thread of the container to releasably secure the closure cap thereon. A lock tab, secured to the closure cap, normally engages within the locking slot to prevent relative rotation between the closure cap and container, when they are threadably secured together. When appropriate finger pressure is applied to the lock tab, it will disengage the locking slot for permitting the closure cap to be unscrewed and removed from the container. The closure cap may be of the "reminder" type for visually displaying information to a user relating to periodic use of the contents of the container.

Abstract: A reusable closure device which is especially intended for use on conventional 18.9 liter plastic bottles in common use for supplying bottled drinking water. The device includes a plastic cap with a replaceable resilient seal. A pair of levers are mounted on the cap for pivoting movement between a first position which allows the cap to be placed on or removed from the bottle and a second position in which cam surfaces on the proximal ends of the levers engage a groove in the neck of the bottle to press the cap down on the bottle. The levers are approximately L-shaped and legs of the levers containing their distal ends interengage in the second position to form a carrying handle. At the present time, the abovementioned bottles are provided with non-reusable heat-shrink plastic caps which are discarded by users resulting in environmental waste. The present invention eliminates this waste.

Abstract: A container for storing a hazardous product, a lock ring and a safety closure placed over the lock ring and threaded to the container. An extending tab portion of the lock ring extends from the bottom of an annular slot in the neck portion of the container. An extending neck portion of the container and a peripheral wall of the lock ring positioned over it, both have an offset axis displaced about the same distance from a central axis of the mating threads on the closure and the container. These offset axes are positioned in alignment to permit closure removal when an alignment bar portion of lock ring is in contact with a shoulder of the annular slot in the neck portion of the container. Serrations on the outside serrated surface of the lock ring and the inside serrated surface of the closure, are concentric with the threads on the closure and the container when the offset axes are in alignment.

Abstract: An integrated assembly is described comprising a container and an elastic container lid. The container has an opening wall defining an opening of the container, with the opening wall having an outer peripheral surface. The elastic container lid is stretchably adjustable to cover the opening of the container, and includes a closure panel having a peripheral edge. According to the invention, a suitable adhesive is located along a predetermined portion of the outer peripheral surface of the opening wall of the container for securing a predetermined portion of the peripheral edge of the elastic container lid to the container. When the predetermined portion of the elastic lid is secured to the container in this manner, a free portion of the elastic container lid is foldable into a first portion leaving the opening of the container substantially unsealed, a second position leaving the opening of the container partly sealed and a third position wherein the container opening is sealed.

Abstract: A push on cap for engaging a container neck is formed with inturned thickened flanges on its inner surface which cooperate with matching grooves in the container neck to retain the cap in place when the skirt is intact. A circumferential groove is formed in the skirt intermediate the inturned thickened flanges joined with a second groove extending to the bottom edge of the skirt. A tab projecting beyond the skirt is gripped and pulled causing the skirt to tear upward and then circumferentially thereby removing the lower thickened flange and permitting the top of the cap to be removed and reclosed. A rigid circumferential flange on the exterior of the skirt is spaced above the level of the uppermost inturned thickened flange and below the top of the cap has an angled gusset below the flange to prevent removing the cap by prying upwards with a fingernail prior to removing the tear skirt.

Abstract: A sealing cap of metallic material, particularly for antibiotic, infusion and transfusion bottles, provided with a hole (7) on its upper wall (5), tightly closed by a metallic foil (8) substantially covering the whole wall (5) and provided with a knurled grip tongue (10) that does not project beyond the outline of the cap (2).

Abstract: An innerseal liner for containers is provided which permits the removal of the entire liner from the mouth of a container without any tearing of the liner. The innerseal liner is sealed to the mouth of the container and a portion of the outer circumference of the liner overhangs the outer surface of the mouth of the container. A pull tab is integrally formed with the innerseal liner and at the intersection of the pull tab with the circular portion of the liner are cut-outs in the circular periphery of the liner. The cut-outs may be arc-shaped and are of a depth approximately the same as the width of the overhang portion of the innerseal liner so that when the pull tab is pulled, the innerseal is removed from the mouth of the container along an arc approximately equal to the width of the pull tab and the length of the cut-out portions before the overhang portion of the liner is lifted from the mouth of the container.

Abstract: A sealing member for a container has a membrane, e.g. aluminum foil, and a first sheet, e.g. polyester, part of which is bonded to the membrane. The other part of the sheet is free, so as to form a tab, to enable the seal to be detached. The seal can be attached to the neck of a bottle by a hot melt adhesive. The sheet and membrane can be stamped from a compound sheet and be of the same size.

Abstract: A crown cap for sealing bottles comprising a cap body including substantially a flat top, a crimped portion formed on the periphery of the cap body and an outwardly extending finger tab integrally connected to a part of the crimped portion and having a width of about 5 to 7 included teeth. A small notch is formed at the intersection between the basal end of the finger tab and the crimped portion, from which a score line extends upwardly along the crimped portion and passes slightly across the peripheral curved portion of the flat top and has an appropriate depth. The finger tab is formed at the margin with a pleated portion to strengthen the rigidity. The score line may be curved at the terminal end towards any of one side on the right or the left and may be additionally provided with a short score line perpendicular to the first score line. In this construction, the crown cap can be easily opened off of the mouth of a bottle by pulling the finger tab over with fingers.

Abstract: A container for use in culturing living cells includes an enclosable portion, or base, and a cover for enclosing the enclosable portion, a path defined between the junction of the enclosable portion and the cover and a gas permeable filter positioned within the path. Gases flow into and out of the container through the filter. Vapor phase hydrogen peroxide is degraded into water vapor and oxygen by a material associated with the filter to prevent hydrogen peroxide from entering the container.

Abstract: A snap closure with original seal safety is particularly suited for bottles with bulging rim areas on the bottle neck. The original safety sealing takes place by means of a release element, which comprises a pressing element which is bounded on both sides by weak points. The release element forms a portion of the circumferential wall. In order that the release element not be torn further than desired, the weak points proceeding in the axial direction of the closure reach only into the area of an annular bulge positioned on the internal surface of the circumferential wall. The release element itself, which has at least one corrugation, is connected with the circumferential wall by means of a film hinge, and can pivot by 90 degrees upon destruction of the weak points.

Abstract: A tamper evident push-on type integral synthetic plastic closure cap for an externally beaded container neck, the body of the cap being formed with a thin central disk region, a thicker surrounding rim region, an interior ridged inner skirt provided with an interior sloping wall portion descending from the inner edge of the rim region, and an outer skirt descending from the outer edge of the rim region, the outer skirt being provided with an arcuate, buttressed lifting tab extending horizontally from a portion of the outer skirt, two inward projecting ribs on the internal side of the skirt, a circumferential weakened region in the skirt disposed between the ribs separating the skirt into distinct upper and lower regions and a descending tear tab projecting downwardly from the lower edge of the lower region of said skirt so that lifting of the tab will break the wall of the skirt and separate the skirt at the weakened region to detach the lower skirt and rib from the remainder of the cap by tearing along the c

Abstract: The container closure of the present invention is particularly useful for dispensing automobile engine oil from an inverted bottle or container where all of the fluid is normally emptied at one time. The opening in the container has a peelable, flexible seal which may be disposed beneath the normal cap or cover of the container. The seal has an elongated pull-tap which doubles back across the outer face of the seal and extends upwardly along the side of the container so that the end thereof may be grasped after the container is inverted and before the contents are discharged. When the end of the tab is pulled, the closure is peeled away from the container-opening, and the contents can be discharged without spilling.

Abstract: A closure cap for infusion and transfusion bottles having a rim cap which grips around a rim neck of a bottle and has a cutout which is closed by a plastic lid so that an annular zone of the plastic lid grips below the edge of the cutout to obtain a tightly sealed attachment of the lid this attachment can nevertheless be lifted off with relatively little force due to a radially extending intended-bend line of the plastic lid formed by a thinning of the material.

Abstract: A process for hermetically sealing a glass container with contents therein is disclosed. The container has a mouth surrounded by a rim, at least a portion of the exterior surface, including the rim, of the container having a film coating of thermoplastic polymer thereon. The first step in sealing comprises substantially reducing the amount of contents' residue from the container rim. A closure is then applied to the rim. This closure is comprised of a layered material, having a thermoplastic polymer layer and a metallic layer, the thermoplastic layer contacting the thermoplastic polymer coating on the container rim. The thermoplastic polymer layer and the thermoplastic polymer coating consist essentially of mutually compatible polymeric materials. The closure is then heated in contact with the rim, to heat seal the closure to the rim coating and to seal the contents hermetically within the glass container.

Abstract: Container (1) having a lid (3) detachably fastened on its open top and having around the outer periphery of its open top an outwardly projecting thickening (2) or rim, the lid (3) resting with its peripheral part (4') on the rim of the opening and having a substantially downwardly directed annular closure lip (5) which is joined to an annular bending lip (7) which is adapted to be moved hingedly between an upper and a lower position and which is provided with an inwardly directed shoulder (8) which engages under the thickening (2) or rim with the lid (3) fastened on the container (1) and which can be brought out of engagement with the thickening by turning the bending lip (7) upwards the bending lip (7) being joined by a hinge lip (6) to the closure lip (5) and, near the connection to the hinge lip (6), being provided with second, outwardly directed shoulder means (9) with a surface directed towards the outer side of the hinge lip (6) which is so shaped that when the bending lip (7) is turned into the lower p

Abstract: Plastic bottle caps of the snap-on type having tamper indicating means such as a tear band. The top wall of the tap overhangs its side wall and the overhanging lip is filleted at an angle of about 30.degree. to increase the difficulty of removing the cap by hand without visibly affecting the tamper indicating means. Also, the cap has interior interrupted beads for snapping over a shoulder of the bottle neck and has ribs in the interruptions for adjusting the magnitude of the snap-on and snap-off forces. The cap is molded on a core having grooves for forming the beads and ribs. The cap may have a non-resilient gasket and a dished top so that it can exert pressure on the gasket.

Abstract: A device for removing a flexible cap from the end of a cylindrical neck over which it is fitted includes an ejector element constrained to move in a circumferential track one side of which track is formed by the lip of the cap. The ejector element is shaped such that movement thereof along the track will force the element against the lip of the cap, displacing it and rendering it readily removable.The device can usefully be incorporated into containers such as storage jars, bottles and paint containers, or into pipe ends.

Abstract: A sample container for a swinging bucket centrifuge rotor is characterized by a planar pivot surface that is adapted to engage in a supported relationship with each of a pair of knife-like pivot edges. The edges engage the surface along an interrupted line contact that intersects the axis of the container.

Abstract: An elastic port protector closing the end of a tubular port, typically on a peritoneal dialysis solution or parenteral solution bag. The port protector defines an outer tubular section having inner and outer ends, and with an inner diameter which is less than the outer diameter of the tubular port on which it is intended to reside. An inner tubular section is connected to the outer tubular section at the outer end and is capable of occupying the bore of the outer tubular end in telescoping relation thereto. The inner tubular section has an outer diameter greater than the inner diameter of the tubular port, to fit into the bore of the tubular port in sealing relation. Handle means is carried on the outer tubular section to aid in removal of the port protector.