Abstract: A polyester container having an enhanced level of crystallinity in the sidewall while maintaining a low level of crystallinity in a thickened base portion. The container is particularly useful as a refillable container which can withstand higher caustic wash temperatures and exhibits reduced flavor carryover, or as a hot-fill container. The container, which can be monolayer or multilayer, is also useful as a carbonated beverage, O2 or CO2 barrier, or beer container.

Abstract: A container made from thermoplastic material, of the type with a domed base, including a central projecting pimple, a peripheral support region and an intermediate arch, provided with ribs, extending from the central pimple to the support region but not therein, the ribs having a dihedral form with a straight section in a V in the medial plane, essentially parallel to the axis of the container and running into each other without a break. The ribs have a longitudinal profile which is curvilinear, the bases of the ribs, in the region thereof adjacent to the central pimple, extending higher than the base of said central pimple and the bases and crests of the ribs, in the region thereof adjacent to the support region, having curves merging progressively into a continuous rounding of unbroken curvature immediately above the support region such that the latter is essentially planar and continuous over the whole length thereof.

Abstract: A container that can hold a liquid, such as paint, or a granulated material includes a side wall portion, a bottom portion formed at one end of the side wall portion, and a well region formed in the bottom portion. The bottom portion includes an inclined surface. Alternatively, the bottom portion can be shaped to be frustoconical, hemispherical or an inverted pyramid.

Abstract: The invention is a method for removing a steam-table pan from a steam table, the method including providing a steam-table pan with a specially configured upper edge region which is a pinch-gripping bead that includes a gripping-skirt configured and vertically dimensioned, along with the upper portion of the pan wall, for pinch-gripping of the bead with an adult's fingers to raise the pan from the steam table. The removing is by engaging the pinch-gripping bead between the person's thumb and index and/or middle finger(s) and lifting the pan from the opening in the top of the steam table with such pinch-gripping.

Abstract: Drawn and ironed aluminum can bodies are made from aluminum having a gauge thickness of 0.01075 inches or less, in which the bottom profile meets customer requirements for bottom performance in terms of buckle, drop and growth, without requiring the bottom profile to be reformed in a separate bottom profile reforming step.

Abstract: A base for a container is provided. The base includes an annular bearing surface that defines a bearing plane. The base also includes a parting line that extends along the base and defines first and second portions on opposite sides of the parting line. The base further includes an inner portion that is spaced from the bearing plane and surrounded by the annular bearing surface. In such a base, the first portion is offset from the second portion.

Abstract: A polymeric container for holding a fluid and a gas includes a specially designed base. The base includes an annular outer ridge connected to a convex dome by a flexible annular joint. During a hot fill operation, the structure of the base resists outward deformation. The top is then sealed. During the subsequent cooling of the container, the interior volume decreases forcing the dome upward toward the top of the container thereby reducing the tendency of the sidewall to inwardly collapse. In an embodiment of the invention, the sidewall of the container has a plurality of internally protruding diagonal ridges.

Abstract: A plastic blow molded container (10) is disclosed as including a freestanding base structure (20) that is constructed with a plurality of alternating hollow legs (22) and curved ribs (34), and a hub (41) from which the legs and ribs extend radially with a construction that provides good stability against tipping as well as the capability of withstanding internal pressure. The legs (22) have lower flat feet (24) with an outer diameter Df, and the hub (41) has a periphery connected to the feet and ribs with a height Hp such that the ratio of the diameter Df over the height Hp is in the range of about 25 to 90 to maintain strength without the hub engaging the supporting surface on which the feet rest. The construction disclosed of the legs (22), ribs (34) and hub (41, 41? and 41?) enhances the capability of the base structure in providing good stability as well as the capability of withstanding internal pressure and stress cracking.

Abstract: A plastic container having a base portion adapted for vacuum pressure absorption. The base portion including a contact ring upon which the container is supported, an upstanding wall and a central portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The central portion being defined in at least part by a central pushup and an inversion ring which generally circumscribes the central pushup. The central pushup and the inversion ring being moveable to accommodate vacuum forces generated within the container.

Abstract: An extrusion blow molded container is provided comprising a closed base, a body portion extending from the closed base having a surface finish that is substantially free of striations, and an open neck portion extending from the body portion. In an embodiment, the container is comprised of polyethylene terephthalate (PET); the base portion includes a support portion and a substantially elevated portion having a center and a major diameter; and the center is disposed an elevated distance above said surface that is less than about 0.05 the major diameter. A method and apparatus for extrusion blow molding an article is also disclosed.

Abstract: A container base may include a standing ring defining a touch point for contact with a horizontal surface, where the standing ring has an outer portion and an inner portion, and merges with the container sidewall. The base may also have a stacking ring having an inner portion and an outer portion, where the outer portion merges with the inner portion of the standing ring. The base may further have a substantially circular recessed portion coupled to the inner portion of the stacking ring, comprising: a plurality of substantially flat concentric rings recessed from the stacking ring, wherein each ring is recessed from the next outermost adjacent ring; a substantially flat center coupled to an inner diameter of an innermost substantially flat ring and recessed therefrom; and a cross-brace extending from the stacking ring into the substantially flat center.

Abstract: A thermoplastic container, such as a bottle, obtained by extrusion-blow or injection-blow molding and having a petaloid base (6, 7). The base includes a convex wall (7) hemispherical in shape; the wall (7) is linked to the wall (2) forming the container body by a marginal zone (8) with a curve (R1, R2). Members (6) originate from the hemispherical wall (7) and are separated in pairs by a part thereof; the top end of each member is directly linked to the wall (2) forming the body.

Abstract: A bottom structure of a biaxially-oriented blow-molded bottle-shaped container is made of a synthetic resin and includes a neck, a shoulder, a body and a bottom. The bottom has a connecting cylindrical wall, a tapered-cylindrical wall, a bottom wall and a grounding wall. A diameter of the tapered-cylindrical wall is decreased downwardly at a certain inclined angle. The bottom wall is domed to an inside of the container. The grounding wall is in a ring plate shape and arranged between a lower edge of the tapered-cylindrical wall and a lower edge of the bottom wall. Each of groove ribs is formed from an upper edge of the tapered-cylindrical wall through the grounding wall to the lower edge of the bottom wall. The groove ribs are arranged with isometric center angle, and extend radially.

Abstract: A container has a grounding portion that is free from sink and can prevent sink from occurring, so that it can secure its self-standing ability. The bottle-shaped container made of synthetic resin comprising a neck, a body and a bottom, said bottom including a grounding portion, said bottom being formed at a center thereof with a central bulged section protruding inwardly, said container showing a polygonal transversal cross section, characterized in that a peripheral bottom wall is formed between an outer periphery of the central bulged section and the grounding portion, said peripheral bottom wall forming a step located below the central bulged section and above the grounding portion, and said grounding portion is provided with a recess in a portion formed with an orientation magnification which is smaller than an orientation magnification with which a portion on and along a diagonal line is formed.

Abstract: A thermoplastic container obtained by blow-molding of a preform, with a base including in its central part a multiple-branch cross-shaped impression provided with a central recess from which radial branches radiate; the base is of the petal-shaped type with at least three legs formed by protuberances located near the periphery; there are as many legs as branches mutually aligned radially; each leg includes a notch for absorbing stresses radially separated from the end of the respective branch.

Abstract: A non-round base structure for a hot-fill plastic container provides the container with enhanced structural integrity. The base structure is roughly rectangular and is composed of a flexible vacuum absorbing area and a bearing edge which support the container in an upright position. The flexible vacuum absorbing area abates with a central ellipse shaped push-up, which is a concave surface. A series of ribs with an outward facing rounded edges are fashioned on the concave surface. The ribs extend outwardly from the center of the ellipse. The disclosed base structure enables the container to withstand the various forces encountered in filling, cooling and handling.

Abstract: A plastic container comprised of a closed base, a body portion, and a neck portion with a dispensing opening. The closed base includes a substantially rigid support portion and a flexible portion. The body portion preferably includes a shoulder portion and a substantially rigid wall portion that includes a plurality of reinforcement formations. The container is configured so that the flexible portion of the base contracts upwardly about the support portion in response to vacuum pressures generated within the container, while the substantially rigid support portion of the sidewall remains substantially firm, for example, to accept or receive a label. If desired, the shoulder portion may include a logo and/or one or more pressure relief formations. A method for producing hot-filled, labeled containers is also disclosed.

Abstract: A plastic container having a base portion adapted for vacuum pressure absorption. The base portion including a contact ring upon which the container is supported, an upstanding wall and a central portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The central portion being defined in at least part by a central pushup and an inversion ring which generally circumscribes the central pushup. The central pushup and the inversion ring being moveable to accommodate vacuum forces generated within the container.

Abstract: A container is provided with child drowning protection in the form of a bottom wall that is contoured in a manner that (1) allows it to stand upright on a flat support such as a floor, shelf or shipping pallet, and (2) in the event that the container contains some water or other liquid and a toddler leans forward into the container, e.g., in an attempt to retrieve a toy that has fallen into the container, the weight of the child on the container will cause the container to tip over, thereby spilling the contents and preventing the child from drowning in the container. Containers embodying the invention may be provided with covers that facilitate stacking covered containers one on top of the other. Additionally, the containers may be formed with an inclined sidewall, whereby to permit a plurality of open empty containers to be nested one inside the other.

Abstract: A plastic blow molded container (10) is disclosed as including a freestanding base structure (20) that is constructed with a plurality of alternating hollow legs (22) and curved ribs (34), and a hub (41) from which the legs and ribs extend radially with a construction that provides good stability against tipping as well as the capability of withstanding internal pressure. The legs (22) have lower flat feet (24) with an outer diameter Df, and the hub (41) has a periphery connected to the feet and ribs with a height Hp such that the ratio of the diameter Df over the height Hp is in the range of about 25 to 90 to maintain strength without the hub engaging the supporting surface on which the feet rest. The construction disclosed of the legs (22), ribs (34) and hub (41, 41? and 41?) enhances the capability of the base structure in providing good stability as well as the capability of withstanding internal pressure and stress cracking.

Abstract: A tray for storing and transporting products that are desirably kept separate from any liquid that may be present. The tray is made up of a base with a number of sidewalls extending up from the edges of the base. Preferably the sidewalls have an outwardly directed lip to which a suitable cover can be attached. The base of the tray is divided into a plurality of islands that cover the majority of the base by a plurality of intersecting channels. The width of the channels is sufficiently narrow to allow the product to span the channels and be supported by the islands. In some cases, a liquid permeable sheet may have to be placed over the channels to support products that cannot span even narrow channels. The collective volume of the channels is large enough to accept and contain all of the liquid that is likely to be present in the tray during use. In this way the liquid is kept separate and apart from the product contained in the tray.

Abstract: A base structure for a blow-molded container having a sidewall is provided. The base structure comprises a support heel having an outer portion and an inner portion, the outer portion merging with the container sidewall. An inner projecting portion merges with the inner portion of the support heel. The inner projecting portion is inclined at an angle of at least about 50 degrees.

Abstract: A plastic container having a base portion adapted for vacuum pressure absorption. The base portion including a contact ring upon which the container is supported, an upstanding wall and a central portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The central portion being defined in at least part by a central pushup and an inversion ring which generally circumscribes the central pushup. The central pushup and the inversion ring being moveable to accommodate vacuum forces generated within the container.

Abstract: Vessels formed to have a safety glass break-seal are described. The break-seal is formed as a hollow finger-like structure extending into the volume of the vessel which can be easily fractured by applying force to the inner surface of the structure. The break-seal design offers the advantage of being protected from external forces during shipment and handling of the vessel and the advantage of safety in that fracture of the break-seal structure does not leave sharp glass edges accessible to the hands of the user/operator. The safety glass break-seal vessel can be fitted with a secondary closure, such as an elastomeric septum, to provide protected access to the contained composition following fracture of the safety glass break-seal.

Abstract: A wide-mouth blow-molded plastic container capable of accommodating, without undesirable distortion, super-baric pressures when filled with volatile food products and pasteurized, and sub-baric pressures after cooling to ambient temperatures. A method of packaging a food product in the container is also disclosed.

Abstract: A molded plastic bottle has a base having an outside surface rotationally symmetric about a longitudinal axis of the bottle including a convex heel and a central concavity separated by a standing ring supporting the bottle on an underlying surface. The convex heel has an upper margin integrally formed with the sidewall of the bottle and a lower margin defining an outer portion of the standing ring. The central concavity includes a first surface having a lower most portion defining an inner portion of the standing ring. The standing ring inner portion and outer portion intersect in an abrupt edge with the inner portion of the standing ring generally being inclined with respect to the plane at an angle of between about 30° and 50°.

Abstract: The invention concerns a thermoplastic container obtained by blow-moulding of a preform, with a base (3) comprising in its central part a multiple-branch cross-shaped impression provided with a central recess (6) from which radial branches (8) radiate; the base (3) is of the petal-shaped type with at least three legs (10) formed by protuberances located near the periphery; there are as many legs as branches mutually aligned radially; each leg includes a notch for absorbing stresses (13) radially separated from the end of the respective branch.

Abstract: A plastic blow molded container (10) is disclosed as including a freestanding base structure (20) that is constructed with a plurality of alternating hollow legs (22) and curved ribs (34), and a hub (41) from which the legs and ribs extend radially with a construction that provides good stability against tipping as well as the capability of withstanding internal pressure. The legs (22) have lower flat feet (24) with an outer diameter Df, and the hub (41) has a periphery connected to the feet and ribs with a height Hp such that the ratio of the diameter Df over the height Hp is in the range of about 25 to 90 to maintain strength without the hub engaging the supporting surface on which the feet rest. The construction disclosed of the legs (22), ribs (34) and hub (41, 41′ and 41″) enhances the capability of the base structure in providing good stability as well as the capability of withstanding internal pressure and stress cracking.

Abstract: A bottom structure of a biaxially-oriented blow-molded bottle-shaped container made of a synthetic resin, comprising a neck, a shoulder, a body and a bottom, characterized in that

Abstract: A plastic bottle is disclosed, which comprises a cylindrical sidewall having a predetermined thickness, an upper mouth-forming portion, a neck extending from this mouth-forming portion, a dome-shaped portion between the neck and one axial end of the cylindrical sidewall, a lower bottom-forming base extending from the other axial end of the cylindrical wall, all about a central axis. The bottle also has at least three substantially vertical exterior ribs that are substantially uniformly angularly spaced from each other about the axis on the neck, and these ribs have maximum cross-sectional radial dimensions along the axis generally greater than said predetermined thickness. The ribs reinforced the neck and distribute forces resulting from impact of a localized force to the mouth-forming portion towards the dome-shaped portion and cylindrical sidewall.

Abstract: A process and a bottle made from this process where the bottle has improved material thickness distribution within the bottom or base portion. The bottle has a noncircular cross-sectional configuration with corresponding major and minor axes. The mold-base region of the bottle mold-cavity features at least one standing rib-like projection generally parallel to the major axis. The standing rib-like projection increases surface distance in a direction generally corresponding with the minor axis. An expanding heated preform traverses the increased surface distance causing the preform to thin more than what otherwise would be the case thus improving material thickness distribution of the base portion that in turn minimizes unwanted bottle shape distortions.

Abstract: A container base that is capable of receiving positive internal pressure, such as that created by introducing liquefied gas during a hot filling process, includes either ribs that substantially connect to a standing ring or a draft surface formed on the bottom of the ribs, or a combination of such features.

Abstract: A plastic bottle is disclosed, which comprises a cylindrical sidewall having a predetermined thickness, an upper mouth-forming portion, a neck extending from this mouth-forming portion, a dome-shaped portion between the neck and one axial end of the cylindrical sidewall, a lower bottom-forming base extending from the other axial end of thed cylindrical wall, all about a central axis. The bottle also has at least three substantially vertical exterior ribs that are substantially uniformly angularly spaced from each other about the axis on the neck, and these ribs have maximum cross-sectional radial dimensions along the axis generally greater than said predetermined thickness. The ribs reinforced the neck and distribute forces resulting from impact of a localized force to the mouth-forming portion towards the dome-shaped portion and cylindrical sidewall.

Abstract: A polyester beer bottle comprising a bottleneck, a body and a bottom of the bottle, which are once blown and shaped with polyester blank, in which arc portion in a vertical section extended from the joint of shaped bottom and body of the bottle to a plane of the bottom has a radius ranging over 15-25 mm; an arc radius in a vertical section of the concave quaquversal portion projecting inwards at a bottom surface of said bottle is in a range of 20-35 mm, and the distance between a top of the concave quaquversal portion to the plane of bottom is in a range of 7-15 mm; an outward projecting support flange portion is formed at the joint between said concave quaquversal portion and the bottom plane of the bottle, a height of the flange portion is in a range of 0.

Abstract: An improved hot-fill bottle is provided having smooth sides and no heat panels or vacuum panels.

Abstract: A container bottom for minimizing deformnation. An outer rounded portion, an inner recessed portion, being generally ellipse shaped, and an offset portion extending along the inner recessed portion are adapted to minimize bulging caused by increased ambient temperature and pressure gradients to provide an improved container to store non-liquid goods.

Abstract: A method of developing a can (e.g. beverage) bottom profile is presented. More specifically, finite element analysis on a parametric representation of a beverage can is used for developing an improved beverage can design. By specifying performance parameters that the beverage can must meet and providing specific geometric limitations on the design an improved beverage can design is obtained. The resulting improved beverage can design is independent of the gauge of the material used in construction thereof. The improved beverage can provides a concave dome on the bottom of the can connected to a bottom stand which in turn is connected to a cylindrical side wall of the can via a slanted connecting wall.

Abstract: A molded polymeric container includes a body portion having a sidewall and an integral champagne type base. The base includes a lower end that defines an annular contact ring for supporting the container with respect to an underlying surface. An annular step ring is defined immediately radially inwardly of the annular contact ring and has a radial length LS. The base further has a central push-up area and a generally concave transition region interposed between the central push-up area and the annular contact ring. The transition region further includes a plurality of integrally molded radially extending ribs, each of the ribs having a length LR. According to one advantageous aspect of the invention, the ratio LR/LS is within a range of about 1.0 to about 4.0.

Abstract: A container bottom for minimizing deformation. An outer rounded portion, an inner recessed portion, being generally ellipse shaped, and an offset portion extending along the inner recessed portion are adapted to minimize bulging caused by increased ambient temperature and pressure gradients to provide an improved container to store non-liquid goods.

Abstract: A base for a food container includes a pattern of rib units in a side wall of the container. The rib units are formed at multiple angles and depths to provide strength to the side wall. The base also includes a bottom with ribs of alternating heights and angles that provide strength to the bottom.

Abstract: A plastic container having a base portion adapted for vacuum absorption. The base portion including a ring upon which the container is supported, an upstanding wall and a recessed portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The recessed portion being defined in at least part by a flat base region and a central base region. The flat base region extending from the upstanding wall toward a longitudinal axis of the container. The flat base region defining a projected surface area of at least 45% of a total projected surface area of the container. The flat base region being moveable to accommodate vacuum forces within said container.

Abstract: A molded polymeric container that is shaped to be easier to mold, have improved rigidity under pressure and improved strength includes a substantially cylindrical body portion having a longitudinal axis and a circumferential sidewall, and a bottom portion. The bottom portion includes a central pushup area that is substantially symmetrical about the longitudinal axis and that is substantially flat. The pushup area preferably has a radius that is within the range of 0.100 inches to 0.500 inches. The bottom portion further includes a plurality of support feet surrounding and protruding downwardly from the pushup area, each of which has a bottom support surface and a pair of sidewalls that help define a valley between the support feet. The sidewalls have a substantially straight portion that defines an angle with respect to a line that is perpendicular to the longitudinal axis, and this angle is at least 25 degrees.

Abstract: A molded plastic bottle has a base having an outside surface rotationally symmetric about a longitudinal axis of the bottle including a convex heel and a central concavity separated by a standing ring supporting the bottle on an underlying surface. The convex heel has an upper margin integrally formed with the sidewall of the bottle and a lower margin defining an outer portion of the standing ring. The central concavity includes a first surface having a lower most portion defining an inner portion of the standing ring. The standing ring inner portion and outer portion intersect in an abrupt edge with the inner portion of the standing ring generally being inclined with respect to the plane at an angle of between about 30° and 50°.

Abstract: A dual container having an outer container with an inner container aligned centrally within the outer container with the base of the inner container retained by the base of the outer container, each container having a separate access port.

Abstract: A blow molded plastic container including a neck finish, a shoulder portion, a sidewall, and a base integrally formed with one another. Two indentations in the sidewall create a handgrip and a web extends generally across the interior of the container between the two indentations. A plurality of generally downwardly extending support feet include short feet and long feet. Separating the support feet are a plurality of first and second strap formations. Support surface contact points of the long feet are in a planar relationship with respect to one another, thereby providing the container with stability when empty. After filling, capping and pressurizing, the support surface contact points of the short feet and the support surface contact points of the long feet are all in a planar relationship with respect to one another, thereby providing the container with stability when filled.

Abstract: A molded polymeric container includes a body portion having a sidewall and an integral champagne type base. The base includes a lower end that defines an annular contact ring for supporting the container with respect to an underlying surface. An annular step ring is defined immediately radially inwardly of the annular contact ring and has a radial length LS. The base further has a central push-up area and a generally concave transition region interposed between the central push-up area and the annular contact ring. The transition region further includes a plurality of integrally molded radially extending ribs, each of the ribs having a length LR. According to one advantageous aspect of the invention, the ratio LR/LS is within a range of about 1.0 to about 4.0.

Abstract: An object of the present invention is to improve shock resistance of nursing bottles formed of a PES resin so as to provide them with such a sufficient falling impact strength that they can be used pleasantly and safely. The injection-blow-molded PES nursing bottle of the present invention has a gate flash (6) at a central portion of a bottom (5), the flash being generated when the resin is previously injected to prepare a parison. The central bottom portion (5) is raised to be of a convex shape to bulge up towards a mouth of the bottle. A height ‘h’ of such a raised bottom portion is from 9% to 20% of an inner diameter ‘R’ that is possessed by a floor-engaging rim of the bottom, the rim being generally circular in a bottom plan view.

Abstract: A molded polymeric container that is shaped to exhibit superior characteristics of light weighting, stability against toppling and resistance to stress cracking includes a conventional cylindrical body portion having a longitudinal axis and a circumferential sidewall and a novel bottom portion. The bottom portion includes a central pushup area of uniformity that is substantially uniform within a spatial rotation about the longitudinal axis. The area of uniformity has a radius RG. The bottom also includes a plurality of support feet that surround and protrude downwardly from the pushup area. Each of the support feet have a bottom support surface with an inner point of contact and an outer point of contact. The outer points of contact together define an outer contact radius ROC. The bottom portion as a whole has a radius of maximum width RBASE. A plurality of ribs are positioned in valleys between the support feet. Each of these ribs is positioned between and helps define two of the support feet.

Abstract: A unitary plastic open head drum includes a first cylindrical sidewall closed at a bottom end with a bottom wall and open at an upper end. A second generally cylindrical sidewall is concentric to and extending at least partially the length of the first sidewall, providing sufficient stiffness to resist “elephant footing” of a bottom drum in a stack of drums.

Abstract: A blow molded container having a multi-functional base which enables use of the container in both hot-fill operations and pasteurization/retort operations and enables efficient vertical stacking of like containers. To this end, a portion of the base is capable of flexing upwardly and/or downwardly in response to variations in pressures in a filled and sealed container. Structurally, the base has a discontinuous concave outer annular wall forming a discontinuous standing ring and an inner annular wall functioning as a flex panel. The inner annular wall connects outwardly to a plurality of radial webs extending at an elevation above the standing ring and connects inwardly to an anti-inverting, upwardly-projecting dome. Preferably, a shoulder extends radially inward on the inward facing side of the outer annular wall above a level of the standing ring to facilitate vertical stacking of containers having like bases.