Abstract: A container has a longitudinal axis, and comprises an upper portion including an opening into the container, a sidewall portion extending from the upper portion to a lower portion, the lower portion including a base, and a pressure panel located in the lower portion substantially transversely to the longitudinal axis, the pressure panel being movable substantially along the longitudinal axis between an initial position and an inverted position to compensate for a change of pressure induced within the container. The pressure panel comprises an initiator portion and a control portion, the initiator portion adapted to move in response to the change of pressure prior to the control portion.

Abstract: A container made from plastic for holding beverages. The container comprises a mouth, a wall section which adjoins the mouth in a longitudinal direction (L) of the container, and a base section which is designed as a standing face. The wall section merges into the base section. The container is formed in one piece. The base section has an injection point located in the interior in a radial direction (R) with respect to the longitudinal direction (L), and a central region which surrounds this injection point, and also a transition section which extends from the central region to the wall section. The transition section has a curvature with a finite radius of curvature in at least one and preferably in every radial direction (R) of the container in every geometric sub-section.

Abstract: A thermoplastic container, in particular a bottle, made by blow-molding or stretch blow-molding of a heated preform and including a bell-shaped convex base with its concavity facing outward and provided with reinforcing impressions projecting inward and radiating around a central recess, the impressions having a trapezoid shape with its smaller dimension located toward the center of the base; the impressions include respective arches which form convex trapezoid segments with concavity facing inward and extending from the seat to the central recess by being connected thereto immediately proximate the upper end of the central recess.

Abstract: A container comprising a finish, a sidewall portion extending from the finish, a base portion extending from the sidewall portion and enclosing the sidewall portion to form a volume therein for retaining a commodity, and a plurality of horizontally disposed rib members disposed in at least one of the sidewall portion and the base portion. The plurality of horizontally disposed rib members is continuously disposed about the sidewall portion or the base portion and, in some embodiments, defines a perimeter length about 3-5% shorter than perimeter lengths of adjacent lands. The plurality of horizontally disposed rib members providing improved structural integrity such that a pre-fill size of the container is approximately equal to a post-filled, cooled size of the container.

Abstract: This disclosure is generally directed toward containers with improved anti-buckling performance by incorporating one or more structural reinforcement features into the containers. The container may include a bottom wall, opposing sidewalls each including a plurality of ribs, and opposing end walls interconnecting the sidewalls. The sidewalls may include at least one reinforcement protrusion having a geometric center disposed in the upper half of the sidewall. The container may also include a non-planar top rim to redistribute top load so that the anti-buckling performance of the container can be improved.

Abstract: A container adapted to increase volume contraction and reduce pressure having four panels that are adapted to contract inwardly from vacuum forces created by contraction of container contents. The container has a sidewall including four panels. The four panels are vacuum panels, including vertical transitional walls disposed between and joining the panels and the body is adapted to increase volume contraction and reduce pressure. The panels are adapted to contract inwardly in response to internal negative pressure created during hot-fill processing and subsequent cooling of a hot liquid in the container.

Abstract: A plastic container of the type that may be formed from a material such as PET using the stretch blow molding process includes a main body portion and a base portion that is characterized by a relatively tall and narrow profile above the standing ring and that has a deep inset recess defined therein. The deep inset recess is defined in part by an upstanding inner sidewall portion adjacent to the standing ring that has a height that may be greater than about 0.35 inch. The upstanding inner sidewall portion may have a substantially straight portion that is substantially parallel to a substantially straight portion of an outer sidewall of the base.

Abstract: A container for storing a liquid or a solid may include a container body having a container side wall and a container bottom and a container lid having a pop top arm to pivot and cooperate with a weakened area to provide access to the interior of the container body. The container body may be formed from plastic and the container lid is formed from metal, and the container body may include a vertical neck. The container body may include a lip, and the bottom wall may include a center protrusion. The bottom wall may include a depression, and the bottom wall may include a radial extending depression.

Abstract: Techniques for designing and creating energy efficient cookware are provided. In accordance with the techniques cookware can include a cookware base having a cooking surface and heating surface. The heating surface can have a pattern of fins forming heat exchange channels. The fins can effectively increase surface area and the channels can guide thermal energy to the perimeter of the cookware base while the fins absorb the thermal energy. The channel fins can improve energy transfer while providing even distribution throughout the cooking surface. The use of fins can also improve the mechanical strength to the cookware. Methods of making the energy efficient cookware are provided. A piece of cookware with a thick base can be provided by casting and by bonding a metal plate to the cookware body. Within the base, heat exchange channels are created by manufacturing processes such as casting or cutting to improve heat transfer.

Abstract: A crate comprises a bottom and two respective pairwise opposing side walls and end walls, wherein the bottom is arch-shaped curving towards the interior of the crate, such that a space between a lower surface of the bottom and a plane defined by a lower end of the crate is provided.

Abstract: A crate comprises a bottom and two respective pairwise opposing side walls and end walls, wherein at least one end wall comprises a thinned portion, and wherein the thinned portion is adapted to allow the user to cut the end wall for providing an inspection opening.

Abstract: A crate comprises a bottom and two respective pairwise opposing side walls and end walls, wherein each side wall comprises a smooth inner surface being shaped in a convex form towards the outside of the crate, thereby providing an inner surface for accommodating products having rounded surface portions and avoiding damage of the products.

Abstract: A container or package for pizzas, made of thermoplastic material, including a cover (1) and a dish or plate (2), wherein the cover (1) has a plurality of first holes (8) arranged centrally and a plurality of second holes (6) arranged along its circumference or circular edge (or in the neighborhood of the latter). Several radial channels (11) interconnect these two pluralities of holes (6 and 8). Preferably, the container (1, 2) is transparent; thereby allowing to recognize the kind of food it contains.

Abstract: An improved metallic can has an integral base that defines a standing ring that is more resistant to buckling than conventional designs. It includes a vertically oriented cylindrical sidewall and a unitary end wall having a recessed central portion and a downwardly flanged rim portion that defines the standing ring. The downwardly flanged rim portion preferably includes a first outer convexly curved annular surface that when viewed in vertical cross-section has a first radius of curvature R1, a second, lower convexly curved annular surface that when viewed in vertical cross-section has a second radius of curvature R2, and a third, inner convexly curved annular surface that when viewed in vertical cross-section has a third radius of curvature R3. Advantageously, the first, second and third radii of curvature R1, R2 and R3 are each different from each other.

Abstract: A container, such as a beverage or food can is provided, which includes a first sidewall, a second sidewall and a bottom portion extending between the first and second sidewalls. The material of the bottom portion is stretched relative to the first sidewall and the second sidewall to form a thinned preselected profile, such as a dome. The material of the container at or about the dome has a substantially uniform thickness. The container is formed from a blank of material, which has a base gauge prior to being formed. After being formed, the material of the container at or about the dome has a thickness less than the base gauge. Tooling and a method for selectively forming a blank of material into a container, are also disclosed.

Abstract: A rugged pan for supporting a fluid-producing unit in fluid collection and overflow applications. The pan has an integrated support system for enhanced material strength, which reduces cracking and premature failure during installation and extended periods of use. Strengthening features include perimeter grommets, angled corners, at least three elongated and longitudinally-extending center supports each having a non-linear perimeter configuration, a corrugated array of laterally-extending uppercuts and undercuts substantially across the pan, and a stress-transferring member connected between adjacent non-linear supports.

Abstract: Systems and methods for vacuum compensation in hot-filled and cooled containers. Each container reduces, via one or more vacuum panels, a first portion of a vacuum created in the container. Each container also has a repositionable portion to reduce a second portion of the vacuum. During hot-filling, no portion of the repositionable portion extends below a standing or bearing surface of the container.

Abstract: Embodiments are directed to containers for storage and transportation of items such as produce harvested with its roots intact. The containers include a base and lid hingedly connected together on at least one edge, and may be stacked to maximize density for storage so that a shipping receptacle can hold more produce while taking up the same place, allowing for more efficient transportation saving on transportation costs and storage. In addition to saving costs on transportation and storage, the containers maintain the freshness of the produce harvested with its roots intact by keeping away soil, soil debris and moisture from the remaining portions of the produce. When containers are stacked together, a top surface of the lid of a first container is adapted to receive a plurality of longitudinal concave grooves on the bottom surface of the base of a second container.

Abstract: A container includes a container body and an image presentation arrangement. The container body includes a solid base and a surrounding wall, wherein the solid base has a refraction face at a bottom face of the solid base and a viewing face at an outer surrounding face of the solid base to define a refraction angle between the refraction face and the viewing face. The image presentation arrangement includes one or more characters integrally formed at the refraction face of the solid base, wherein the virtual images of the characters are projected on the viewing surface by means of refraction for enhancing a decorative aesthetic appearance of the container body.

Abstract: The present invention pertains to a blow molded plastic container configured to hold food or food-related products, including cheese. In a first embodiment, the container includes extended vertical ribs that have a height that spans at least about ninety-five percent of a height of a lower portion of the container. In a second embodiment, the container includes a reinforced annular leg that is greater than the thickness of the container wall. In a third embodiment, the stacking bead is positioned between the lower and upper container walls, and the lower container wall is inwardly offset from the upper container wall. In a fourth embodiment, the container bottom is reinforced with continuous ribbing as opposed to only partial ribbing incorporated in containers known in the art.

Abstract: A food container system can include a tray with a bottom and a side wall, which together define a recess. The tray can have an array of ribs on the bottom panel that can extend to the side wall. The side wall can have female ribs that extend from the bottom panel to the top edge of the side wall. An inverted corner creating a concave shape on the exterior edge of the tray can be disposed at the intersection of the bottom wall and the side wall. The tray can include a rim that extends around the perimeter of the tray, which can accept a complimentary surface of a lid.

Abstract: The invention includes a novel profile for a container bottom. The bottom structure includes a domed central panel attached at its outside edge to a downwardly projecting substantially cylindrical inner leg portion. The inner leg portion is attached to a generally semi-circular nose portion. The outside of the nose portion is attached to an upwardly and outwardly inclined outer leg portion. The outer leg portion is attached to an outwardly inclined peripheral portion. The peripheral portion is attached to the lower end of the generally cylindrical sidewall portion. The improvement primarily involves the larger stand diameter, and altered dome circle radius and dome depth, which produces a container bottom profile yielding more consistent results in drop tests to determine resistance to bulging and reversals (single can and consumer package flat and angled drop tests) than prior art can bottoms.

Abstract: A base for a plastic container is disclosed. The base includes a central vertical axis; an outer supporting annular portion for supporting said container on a surface; a central portion of the base, the central portion provided about said central vertical axis; and a base portion. The base portion extends between the annular portion and the central support portion of the base. The base portion includes at least two lugs that extend radially from a position adjacent the annular portion towards the central portion, the lugs including at least two stepped segments.

Abstract: The invention relates to a pressurized can, such as an aerosol can, having a bottom comprising a panel connected via a countersink and a foot to the can body wall, which bottom has a panel with a substantially non-concave form.

Abstract: A container for containing food and/or beverage ingredients is described. The container is of a type which may be supported in a support while the ingredients inside the container are processed, such as by a rotating blade or other mechanism. The container includes anti-rotation elements positionable in anti-rotational contact with a corresponding protruding portion in a container support in a manner which restricts rotational movement of the vessel relative to the container support. The off-set between each of the anti-rotation elements is an angle other than 180°.

Abstract: Techniques for designing and creating energy efficient cookware are provided. In accordance with the techniques cookware can include a base and a wall and a linear pattern of flame guide channels connected to the base bottom. The guide channels accept flames and guide them to the perimeter from the central region resulting in efficient heat exchange. The linear channel profiles provides significant surface area enhancement from a given area on the bottom to improve heat transfer while providing even heating and mechanical strength to the cookware. A flame entrance opening is provided in the center region of the base to allow easy entrance of the flame into the channels. A gas burner flame pattern is provided to work with the linear channels profiles of the cookware to further improve the energy efficiency.

Abstract: An improved gardening waste receptacle has an open top and presents an opening with square corners. The receptacle opening has an arced strip along one side of the rim on the interior for retaining scooped material, and a non-deformable strip extending along the same side of the rim on the exterior, and extending along the adjacent sides of the rim of the receptacle to prevent the opening from deforming when heated and put under pressure. Two handle means are disposed on the side of the receptacle opposite the strips; one handle, a recessed handle disposed into the lower portion of the wall of the receptacle, and another handle extending outward from the top of the wall. The outward extending handle presents a dowel that turns in position for ease of lifting and carrying.

Abstract: Apparatus (10) for holding food includes a food container (12) with a bottom wall and a plurality of support ribs (20) that extend up from much of the bottom wall and form recess regions (22) between ribs for holding liquids that drip off the food. A sealing film (24) lies on the support ribs and extends over the recess regions. The sealing film has pores that allow liquid on the food to migrate downward into the recesses, while preventing the splashing of liquid up through the film onto the food.

Abstract: An automated staining system and a reagent container designed for use with the automated staining apparatus. The reagent container includes a reagent containment section capable of containing a volume of a reagent. The reagent containment section includes an upper wall and a base wall that are spaced apart along an axis. The base wall includes a well having a nadir that is aligned axially with an access opening in the upper wall so that a reagent probe entering the opening parallel to the axis will travel toward the nadir. In another aspect of the invention, the reagent container may include a two-dimensional data element containing reagent information. The staining apparatus may include one removable drawer for holding reagent containers and another removable drawer holding slides.

Abstract: A flowerpot 1 made of plastic, in particular in a deep-drawn embodiment having a bottom 7 that is provided with holes and hollow layer regions of the bottom 7 on the bottom side for connecting the holes to the environment on the bottom side is designed so that the holes 12, 13 are arranged at least partially in the bottom areas 8, 9, 10, 11 which sit without any spacers for distancing on a supporting surface and have channels 14, 15 in the form of a bottom channeling crisscrossing through the lower area in at least two directions and leading out to the edges. These channels ensure drainage of the flowerpot at the bottom and optionally watering of the pot without providing feet or edge webs on the bottom that would be susceptible entanglement when being shifted on working surfaces or in conveyance with the help of conveyor belts and which can lead to deformation and resilient recoil movements when work is done by machine, in particular when the pots are being placed on a substrate.

Abstract: A paint tray includes a cavity defined by a bottom wall, a first side wall, a second side wall, a first end wall, and a second sloping end wall. Each of the first side wall, second side wall, first end wall, and second sloping end wall inclines upwardly and outwardly from the bottom wall. The cavity terminates at a top edge. The paint tray also includes a top tray rim adjacent the top edge of the cavity, a perimeter rim that inclines downwardly and outwardly from the top tray rim, a handle disposed at an edge of the perimeter rim proximate each end wall, and a leg panel extending downwardly and outwardly from each of a first side and a second side of the perimeter rim proximate the second sloping end wall. The leg panel has a bottom edge that is co-planar with the bottom wall.

Abstract: A container for carrying and pouring flowable materials having a bucket portion with a side portion, a closed bottom portion and an upper rim area at least partially defining an open top; a handle attached near or on the upper rim area; at least three gripping surfaces located in the closed bottom portion of the bucket portion to permit multiple means of gripping the container. A method for dispensing flowable materials having the steps of gripping a handle rotatably affixed to a container having material therein with a first hand, wherein at least a portion of the handle is located above a discharge opening of the container; gripping a gripping surface located about the middle of the bottom of the container with a second hand; and tipping the container to discharge material from within the container using the first hand and the handle as a pivot point while lifting the bottom of the container with the second hand gripping the gripping surface.

Abstract: Water holding tank (1) that includes an approximately rectangular bottom wall (2) and four side walls (3) that are connected respectively to the sides of the bottom wall, characterized in that each side wall includes: A number of upper support platforms (9) that are arranged periodically along one side of the bottom wall; A number of lower support platforms (8) that are arranged alternately relative to the upper support platforms at a distance from the bottom wall; and A number of connecting walls (30), whereby each connecting wall connects an upper support platform to a lower support platform while leaving open a passage for water, in which the upper support platforms of a side wall are arranged in mirror positions of the lower support platforms of the opposite side wall relative to a 180° rotation and vice versa.

Abstract: A plastic container is provided having a container body and a closed base. The base includes a base body and a plurality of deflection ribs configured to buckle as the base deforms in response to an increase in negative pressure internal to the container.

Abstract: A container includes a container base and a lid interconnected by a hinge and being of one-piece integrally molded plastic construction. The container base is of generally rectangular outline having a back wall to which the hinge is connected, a front wall, opposite sidewalls and an open end. The front wall is connected to the back wall opposite the open end by a continuously curving end wall so that the front wall, the back wall and the continuously curving end wall form a continuous surface for application of a label to the front wall, the back wall and the continuously curving end wall. The sidewalls have flat coplanar edges opposite the open end to permit the container to be stood on end with the open end facing upwardly. The container preferably includes a child-resistant latch having a first latch element on the lid opposite the hinge and a second latch element on the front wall of the container ban adjacent to the open end and opposite the hinge.

Abstract: A transport and storage container for liquids includes an inner container of plastic material, an outer casing of a metal mesh or sheet metal, and a pallet-like underframe. The container is configured for manipulation by a transport means. A bottom of sheet metal rests on corner and middle legs for supporting the inner container equipped with a closable filling socket and a drain socket for connection to a removal fitting, wherein the inner container has a drain bottom with a middle draining groove which extends with a slight downward inclination from the rear wall of the container to the drain socket arranged at the end wall of the container for connection of the removal fitting.

Abstract: A one-piece plastic container includes a cylindrical body defining a longitudinal axis. The plastic container has an upper portion, a sidewall portion and a base portion. The base portion defines a radial sidewall and a continuous contact surface formed around a central pushup portion. A plurality of modulating vertical ribs are defined on the base portion generally at a transition between the continuous contact surface and the radial sidewall. The sidewall portion can be integrally formed with and extends from the upper portion to the base portion. According to one example, the plastic container can have six (6) modulating ribs. The base portion can define a plurality of facets formed between adjacent modulating vertical ribs.

Abstract: The present invention provides synthetic resin thin-walled bottle container (10, 20, 30) including a mouth portion (11) for filling or discharging contents, a body portion (12, 22, 32) extending from the mouth portion (11) along the center axis (A) of the container, and a heel portion (H10, H20, H30) provided at the bottom part (13, 23, 33) of the body portion (12, 22, 32) for placing, thereon, the body portion (12, 22, 32) in a self-supporting manner. The heel portion (H10, H20, H30, H40) includes a sidewall (14, 24, 34) formed of a curved surface (R11, R21, R31) that is recessed toward the inside of the container (10). Thus, even with a reduced amount of the resin, the container (10, 20, 30) can be stably self-supported without causing inclination or buckling at the heel portion (H10, H20, H30), under a load applied in the center axis (A) direction thereof.

Abstract: The food container system can comprise a lid, tray, and strap. The strap can comprise signage, a handle, and two attachment ends on the sides of the handle. The signage can convey information to a user concerning certain product information and/or other information.

Abstract: A sealed wall structure includes at least one sealed plate (10), the plate (10) being corrugated with at least one first series of corrugations and a second series of corrugations (6) of transverse directions, the corrugations protruding toward the internal face of a tank. The structure includes at least one reinforcing ridge (11) made on at least one corrugation of a series in its portion lying between two successive intersections (8) with corrugations of the other series, each ridge (11) being generally convex and made locally on at least one lateral face (6b) of the corrugation that supports it.

Abstract: The liquid is supplied to an emitter electrode which is provided at a tip of a liquid carrier, receives a high voltage, is electrical-charged, and discharged as a mist of charged minute water particles of nanometer order from the emitter electrode. The emitter electrode discharges the mist of the charged minute water particles of micron order at the same time by a pressure which is applied to the liquid which is supplied to the tip of the emitter electrode. An electrostatically atomizing device supplies liquid to an emitter electrode of a tip of a liquid carrier, applies the high voltage to the liquid, electrically-charges the liquid, and causes the emitter electrode to discharge a mist of charged minute water particles of nanometer order. In addition, the electrostatically atomizing device applies a pressure to the emitter electrode and causes the emitter electrode to discharge a mist of the charged minute water particles of micron order.

Abstract: A method for manufacturing a can body for a two-piece can by multistage forming of a circular laminated steel sheet having a radius of R0 includes the steps of producing a form at least one time by using a laminated steel sheet coated with a polyester resin, which has a plane orientation coefficient of 0.06 or less, in such a way that the height h, the maximum radius r, and the minimum radius d of the form satisfy d?r, 0.2?d/R?0.5, and 1.5?h/(R?r)?2.5, where R represents the radius of the laminated steel sheet having a weight equivalent to the weight of a final form; heating the resulting form at least one time at a temperature of 150° C. or higher, and lower than or equal to the melting point of the polyester resin; and working the heat-treated form into a form satisfying d?r, 0.1?d/R?0.25, and 1.5?h/(R?r)?4. This method easily produces a can body for a laminated steel sheet two-piece can at a low cost without occurrence of peeling nor breakage of a resin.

Abstract: A method of manufacturing a diffusion-tight plastic container with a bottom portion and a side wall portion, comprising the steps of: a) providing a planar, diffusion-tight film material, b) cutting a label out of the film material, the label having a bottom portion corresponding to the bottom portion of the plastic container and at least one side tab extending from it, corresponding to the side wall portion of the plastic container, c) preshaping the label in accordance with an outer surface of the plastic container, thereby forming overlapping areas, d) sealing the film material at the overlapping areas, as a result of which the label is shaped into the form of the film material body, e) placing the label into a mould having an inner surface corresponding to the outer surface of the plastic container to be manufactured, f) closing the mould, thus forming a mould cavity, the thickness of which corresponds to the thickness of the plastic container, and g) injecting plastic into the mould cavity and manufactur

Abstract: A beverage container including a finger insertion indentation is provided. The beverage container includes a barrel portion having a substantially square cross-sectional shape defined by a plurality of walls including at least a front wall, a rear wall, a left side wall, and a right side wall. The container also includes a pair of indentations formed in at least one of the front and rear walls for insertion of, and engagement with, a finger, and a column portion separating the pair of indentations into left and right portions. Each of the pair of indentations has a bottom wall, a first side wall extending from the bottom wall to the column portion, and a second side wall extending from the bottom wall and facing the first side wall, the second side wall having a peak portion extending along a corner portion of the substantially square cross-sectional shape.

Abstract: A laminated steel sheet for use in the manufacture of a two-piece can body that satisfies the following three formulae includes a polyester resin layer on at least one side of the steel sheet, the polyester resin layer containing 3% to 30% by volume of dispersed incompatible subphase resin having a glass transition point of 5° C. or less and a cross section aspect ratio of 0.5 or less: d?r; 0.1?d/R?0.25; and 1.5?h/(R?r)?4, wherein R denotes the radius of a circular laminated steel sheet that has the same weight as that of the two-piece can body before processing, h denotes the height of the can body, r denotes the maximum radius of the can body, and d denotes the minimum radius of the can body. A high strain two-piece can, such as a two-piece aerosol can, formed of the laminated steel sheet is free from delamination and breakage of the resin layer.

Abstract: An improved metallic can has an integral base that defines a standing ring that is more resistant to buckling than conventional designs. It includes a vertically oriented cylindrical sidewall and a unitary end wall having a recessed central portion and a downwardly flanged rim portion that defines the standing ring. The downwardly flanged rim portion preferably includes a first outer convexly curved annular surface that when viewed in vertical cross-section has a first radius of curvature R1, a second, lower convexly curved annular surface that when viewed in vertical cross-section has a second radius of curvature R2, and a third, inner convexly curved annular surface that when viewed in vertical cross-section has a third radius of curvature R3. Advantageously, the first, second and third radii of curvature R1, R2 and R3 are each different from each other.

Abstract: A lidded container includes a container having an open top defined by an annular rim; and a lid having a central section and an outer rim attachable to the rim of the container. The annular rim of the lid includes an annular clamping section defined by spaced inner and outer walls for receiving the rim of the container in the space between the walls. The annular clamping section of the lid is integrally joined to the central section of the lid by an annular, elastically deformable juncture section effective to increase the clamping action of the lid clamping section with an increase in pressure within the container.

Abstract: A produce packaging system incorporates a tray for receiving a plurality of produce carrying baskets. The baskets each include upper ventilation slots and lower ventilation channels. The lower ventilation channels are formed by arching the bottoms of the baskets to form transversely oriented channels in the bottoms of the baskets configured to enable bi-directional cooling airflow to pass underneath the baskets in at least two transverse directions. Bi-directional airflow is also achieved in the upper portion of the baskets through the ventilation slots. The trays are configured such that, when the baskets are loaded into the trays, the upper ventilation slots and the lower cooling channels are aligned with sets of cooling vents in the trays thereby facilitating efficient cooling of produce contained in the baskets.

Abstract: A base structure having a bearing surface defining a bearing plane and an inner portion spaced apart from the bearing surface in a direction that is substantially perpendicular to the bearing plane. The inner portion includes a first surface, a second surface spaced apart from said first surface, and a step merging said first surface with second surface.

Abstract: The invention provides a base structure of a container. The base structure includes a support heel that defines any number of touch points for contact with a horizontal surface. The support heel includes inner and outer portions that merge with the container's corrugated support flute and sidewall, respectively. The base structure also includes a fin that forms the zipper pinch and extends transverse to and intersects corrugations of the corrugated support flute.