Abstract: A wrapping apparatus, system, station and/or process is generally provided. As to the apparatus, it includes a wrap bar for engaging and directing a wrapper about the product, a wrap bar carrier from which the wrap bar extends, and a drive assembly operatively linked to the wrap bar carrier. The carrier block, which translatingly retains the carrier intermediate opposing end portions thereof, is adapted for driven rotation about a wrapping axis of the apparatus so as to thereby rotatingly drive the bar about the axis via rotation of the carrier. The drive assembly, which is operatively linked to the carrier, selectively translates the carrier in relation to the carrier block during driven rotation of the carrier such that a radial distance for the bar from the axis is thereby capable of selective establishment in furtherance of delimiting a wrap bar travel path commensurate with the product profile of the product.

Abstract: A wire inserting device, an elongated workpiece winding apparatus having the wire inserting device, and a wire inserting method are provided to insert a wire in a bundle of an elongated workpiece at an intermediate point in the bundle. The wire inserting device includes a detector arranged at a position corresponding to the intermediate point, and a wire holder configured to releasably hold the wire. The detector is configured to move when pushed by the elongated workpiece placed at the intermediate point during a formation of the bundle of the elongated workpiece. The wire holder is configured to move in synchronization with the detector to insert the wire in the bundle at the intermediate point.

Abstract: A method for producing a capsule includes providing a plastic main body having a bottom region, a peripheral side wall, and a peripheral main-body collar adjoining the peripheral side wall, wherein the main body has a substantially rectangular cross-section in the region of the main-body collar; providing a deep-drawn plastic cover for closing the capsule, wherein the cover forms an outward curvature, which adjoins a peripheral cover collar; filling the main body with an extraction material; and placing the cover onto the main body such that the cover collar lies on the main-body collar and fastening the cover collar to the main-body collar via ultrasonic welding. The cover is provided with an energy-director, which focuses the ultrasound energy during the ultrasonic welding, and wherein the cover has at least one groove that extends peripherally on an outer face in the region of the cover collar.

Abstract: An appliance for dispensing, forming and vacuum packaging a container is provided including a base, a vacuum motor disposed in the base, a vacuum sealing compartment formed in the base including a vacuum trough fluidly connected to the vacuum motor, a sealing element disposed in the vacuum sealing compartment adjacent the vacuum trough, and a storage compartment formed in the base vertically disposed above the vacuum sealing compartment configured to store a roll of flexible container material. At least one section of the container material may be dispensed from the storage compartment and cut from the roll of container material and sealed on a first free end with the sealing element to form an unsealed container. The unsealed container may then be evacuated by the vacuum motor through a second free end inserted into the vacuum trough and/or sealed on the second free end with the sealing element to form a hermetically sealed container.

Abstract: An appliance for vacuum packaging and sealing a container, including: a vacuum motor assembly generating suction, a vacuum trough fluidly connected to the vacuum motor assembly, first and second heat sealing elements, and a microprocessor configured to control the vacuum motor assembly and the first and second heating elements in programmable sequences. One programmable sequence may include energizing the vacuum motor assembly to provide suction to the vacuum trough, energizing the first heat sealing element at a first predetermined temperature for a first predetermined time when a first predetermined vacuum level is reached in the vacuum trough, de-energizing the vacuum motor assembly after a third predetermined time has elapsed after the first heat sealing element has been de-energized, delaying a dwell time, and energizing the second heat sealing element at the expiration of the dwell time at a second predetermined temperature for a second predetermined time.

Abstract: The application is directed to a bagging assembly operationally configured to hold a bag or the like in an open position in order to fill the bag with one or more items and/or materials and/or substances. The bagging assembly includes a base member and an inlet member to be placed atop the base member. The base member and inlet member are operationally configured to hold an open end of a bag or the like in an open position.

Abstract: An exemplary method of making packages includes advancing a web of connected bags to a position where an opening of the bag is below an engagement device and opening the engagement device. Additionally, the exemplary method includes blowing the opening of the bag to a partially opened configuration, and reverse indexing the web of connected bags so that a portion of the engagement device is disposed inside of the bag and a portion of the engagement device is disposed outside the bag. Subsequently, the exemplary method includes closing the engagement device so that the engagement device engages the bag and moving the engagement device to a position that causes the opening of the bag to have a rectangular shape.

Abstract: Techniques are described for processing sensor data associated with product dispensers at an establishment. The system is configured to monitor the location of product dispensers at an establishment and the system detects an alarm event related to the monitoring system based on the monitoring.

Abstract: A cutting station is provided for separating a plurality of packages from a continuous chain of sealed packages formed on an indexing motion packaging machine. The cutting station includes a plurality of cutting blades configured in a nested arrangement to form closed curved contours for producing curved cuts in the continuous chain of sealed packages to form severed individual sealed packages having contours corresponding to the contours of the blades with a minimum of waste of the severed joined webs. A blade receiving plate is provided for receiving the severed sealed packages, and is mounted for movement relative to the cutting blades and formed with a plurality of recesses configured in a nesting arrangement of closed curved contours aligned with and corresponding in shape to the closed curved contours of the cutting blades.

Abstract: Systems and methods for towing a bagging machine are disclosed. The system includes a coupler connected to a hopper that is configured to raise and lower relative to a chassis of the bagging machine. The chassis has at least six wheels in contact with the ground that remain in contact with the ground when the coupler is attached to a towing vehicle hitch. The hopper raises to attach the coupler to the hitch and lowers to engage the hitch for towing, while keeping the wheels on the ground.

Abstract: A labeling device includes a container transporter that conveys the containers along a conveyor path and a first conveyor that runs between the return-stations. The labeling stations are arranged along the conveyor path between the return-stations. The frame's frame ends lie at opposite ends of a longitudinal axis. Attachment-sections associated with the frame ends attach to respective return stations, with at least one of them permitting attachment of a return-station at multiple positions along the axis. These attach to the mounts, which have continuous mounting-elements extending between the return-stations along the longitudinal axis. The mounts enable mounting a labeling station in any position between the return-stations using an attachment element that is complementary to the mounts and with which the labeling stations are equipped.

Abstract: A multilayered stretch-blow-molded container obtained by biaxially stretch-blow-molding a multilayered preform that includes inner and outer layers of an ethylene terephthalate polyester resin, and at least one intermediate layer of a lowly crystallizable ethylene terephthalate polyester resin and a gas-barrier aromatic polyamide resin. A difference of refractive index (?RI) between the lowly crystallizable ethylene terephthalate polyester resin and the gas-barrier aromatic polyamide resin is represented by formula (1), ?RI=|RIE?RIA|??(1) is not more than 0.03, wherein RIE and RIA are refractive indices of injection-molded plates made, respectively, from the lowly crystallizable ethylene terephthalate polyester resin and the aromatic polyamide resin after they have been biaxially stretched into 3×3 times simultaneously, and the haze in the body portion is not more than 3%.

Abstract: There is described a sealed package for pourable food product, comprising: a first wall, which is adapted to define, in a normal use position, a bottom wall of package, and which comprises a plurality of boundary first edges defining a first plane; a second wall, which is opposite to first wall, comprises a second edge and a third edge opposite to each other, and is adapted to define, in the normal use position, a top wall of package; second edge and third edge define a second plane, which is angled with respect to first plane for a first angle smaller than 90 degrees; the first angle ranges between 1 and 7 degrees.

Abstract: A container comprising an outer casing and an inner casing. The inner casing is received within the outer casing and is retractable from the outer casing. The inner casing includes a locking tab which engages with a locking layer of the outer housing.

Abstract: A package comprising a carton and a plurality of articles. The carton can comprise a plurality of panels that extends at least partially around an interior of the carton. The plurality of articles can be arranged in a plurality of rows of articles in the interior of the carton, the plurality of rows of articles can comprise at least a first row and a second row, and the first row can comprise at least one more article than the second row forming a void between a first article at an end of the first row and a second article at an end of the second row. A handle can comprise the first article at the end of the first row and a handle feature extending in the carton. The handle feature can be at least partially aligned with the void and can be proximate the first article.

Abstract: A packing box of a portable device is provided, which includes a main plate body and a frame plate body. Plates, which are adjacent to the main plate body and the frame plate body, are respectively disposed with fold-lines; such that a first side plate of the main plate body overlaps a first bonding plate and a third side plate overlaps a second bonding plate to form an accommodating space.: first frame plate, a second frame plate and a third frame plate of the frame plate body are overlapped with one another, so that the first frame plate, the second fame plate and the third frame plate, which are overlapped with one another, separate the accommodating space through a third bounding plate of the frame plate body. When the main plate body and the frame plate body are flattened, the plates are parallel to one another and flat-shaped.

Abstract: A one-piece paper container is formed by cutting and pressing a single-layer coated paper into an unfolded container body and cover, then steaming to soften one of the surfaces thereof and thermoforming with an upper and lower moldings at 120° C.˜160° C., combining a coating film covering on a plurality of coincided surfaces at the corners and forming enhanced surfaces with protrusions at on the container body and the cover in the meantime, therefore forming a strong structure. Finally, conducting a moisture examination to decide if the product is qualified or not, so as to ensure safety for the consumers.

Abstract: A reinforced package comprising a carton comprising a plurality of panels that can comprise a front panel, a first side panel foldably connected to the front panel, a second side panel foldably connected to the front panel, and at least one back panel foldably connected to at least one of the first side panel and the second side panel. A bag can be attached to the carton and can have an at least partially open end, an at least partially closed end, and an interior space for holding a product. The carton can be positionable in a non-erect position wherein the interior space of the bag is at least partially collapsed and in an erect position wherein the interior space of the bag is increased. The carton can support the bag in the erect position and can have retention features for retaining the carton in the erect position.

Abstract: A package material blank comprises a plastic opening device, having a first portion on a first side and a second portion on a second side of the package material blank. The portions are connected with each other via a material bridge penetrating the blank. A grip portion is attached to a distal end of the first portion and displaced form the blank to facilitate easy grabbing for a consumer.

Abstract: There is described an opening device for a container, which comprises a pouring spout defining a pouring opening to pour in use the content of the container, a closing element closing the pouring opening and connected to the pouring spout by breakable connector, and a closure fitted to the pouring spout in a removable manner to close the pouring opening at a region thereof different from that closed by the closing element; the closing element is formed in one piece with a protruding portion extending through the pouring opening and welded to the closure far away from the closing element.

Abstract: A lid for a container made of metal and able to contain a substance, it comprises a closing element defined by a line of incision provided with a front portion, an opening lever disposed astride the line of incision and comprising a fulcrum front end disposed at the front of the front portion, and an intermediate region provided with a flexible tongue attached to the closing element, a mechanical element configured to attach the flexible tongue mechanically to the closing element. The mechanical element is disposed essentially tangent to the front portion of the line of incision.

Abstract: A shock pallet assembly allows transport or movement of tall rack-mounted information handling systems (IHSes) without tipping. The shock pallet assembly can resiliently, manually or automatically retract for placement near a wall of a transport conveyance to achieve a greater shipping density of IHSes. The shock pallet assembly can include a bottom structure having a pair of parallel apertures to receive tines of a forklift Resilient padding is positioned on a top surface of the bottom structure to provide shock dampening. A top deck is attached on top of the resilient padding and bottom structure to form a shock pallet that receives a racked-mounted IHS for transport and movement. An anti-tip mechanism can be attached to a lateral side of the shock pallet to prevent tipping of the rack-mounted IHS.

Abstract: A modular pallet system includes a lower shelf having vertically linkable corner fittings connected to side bars and cross bars arranged in a substantially horizontal plane. The pallet system further includes a plurality of uprights connected to the vertically linkable corner fittings and extending upwards from the lower shelf. At least two of the uprights may be connected together by a horizontal handle spaced apart from the lower shelf. Additionally, the pallet system includes castors connected to vertically linkable corner fittings of the lower shelf and extending downward from the lower shelf.

Abstract: A stacking cup cap aims to cover a cup body which includes a cup top rim and a cup bottom side. The stacking cup cap includes a closing cap anchored on the cup top rim, a sealing lid connected to the closing cap and remote from the cup top rim and a drinking orifice. The sealing lid includes an indented stacking space to hold another cup body. The cup bottom side of another cup body is formed at a size mating the stacking space. The drinking orifice is located on the sealing lid corresponding to the stacking space to be covered by another cup body. Thus, through the stacking space a plurality of cup bodies can be stacked over one another at greater stability. After stacking the drinking orifice does not form direct communication with the exterior, hence can resolve the problem of dust contamination.

Abstract: A collapsible shipping bag includes a body defining an interior, the body including a top wall, a bottom wall, a right sidewall, and a left sidewall. The collapsible shipping bag further includes a plurality of inner stiffener panels disposed within the interior and dividing the interior into a plurality of pockets, each of the plurality of inner stiffener panels defining an intersection with the top wall and the bottom wall. The collapsible shipping bag further includes a strap coupled to the body at a first plurality of intersections with the top wall and uncoupled from the body at a second plurality of intersections with the top wall. The body is movable from an expanded position to a collapsed position due to movement of the straps.

Abstract: A container includes a bottom, lateral walls, and a device for dividing the interior of the container. The device has a groove at each opposing lateral wall and a partition. Each groove extends from an upper edge of the lateral wall over a part of the height of the lateral wall. Each groove and the end faces of the partition have a cross-sectional shape transverse to their longitudinal extension, so that the end face of the partition and each groove can be united by a form-fit. Each groove can have an undercut.

Abstract: A flexible, hardened material created for the added stability, rust prevention and safety for all users of propane cylinders, tanks, canisters or the like. The composition of device can vary in flexibility, hardness, color, composition, shape or size. The molding/forming of the device can include but is not limited to injection molding, rotational molding, blow molding, compression molding, transfer molding, silicone molding and vacuum thermoforming. The device can be formed from a composition which may include, but is not limited to, rubber, thermoplastics, polymers, and synthetics of various durometer. The device can be non-electrostatic and can protect against ambient ground electrostatic charges.

Abstract: Envelope seal strip are disclosed. An example envelope includes a flap that is rotatable about a hinge between an open position and a closed position of the envelope. The example envelope includes a first adhesive layer disposed on an inner surface of the flap and a sealing strip having a second adhesive layer. In the open position, the sealing strip is releasably coupled to the first adhesive layer via the second adhesive layer. To secure the flap in the closed position, the first adhesive layer and the second adhesive layer enable the sealing strip to decouple from the first adhesive layer, the hinge enables the flap to rotate about the hinge to cause the first adhesive layer to adhere to a second wall, and the second adhesive layer enables the sealing strip to adhere to the second wall and an outer surface of the flap.

Abstract: A tube passage sealing system for allowing passage of a tube from the interior to the exterior of a case such that the case is sealed against fluid intrusion whether a tube is present or absent. The tube passage sealing system generally includes a case having a first portion and a hingedly connected second portion. The portions may be closed together to define a compartment in which a device may be positioned. A tube seal assembly is included which allows a tube leading from the device within the compartment to exit the case through a passage formed in the assembly. The tube seal assembly generally includes a first tube seal and second tube seal which combine when the case is closed to seal around the tube. Some embodiments may include blocking portions on the tube seals which will act to seal the passage when a tube is not present.

Abstract: A bottle cap that is easy to remove, particularly for consumers with arthritis, disabilities, or other weakened hands. The bottle cap can be removed from the bottle either by twisting off or through use of a bottle cap remover. The bottle cap has a generally cylindrical interior that includes internal screw threads that screw the cap onto matching screw threads on external portions of the neck of the bottle. A thumb or finger push tab member is formed on the exterior of the bottle cap, and extending outward from the cylindrical portion of the cap. The finger push tab member is employed to increase the amount of torque or rotational force, thereby facilitating removal of the bottle cap. The bottle cap also includes flanges for attachment of a lever-type bottle cap remover, each including an attachment point for the bottle cap remover.

Abstract: A disposable coffee cup lid including a generally circular panel member, an endless sidewall member having an inner face, an oppositely disposed outer face, and a generally circular top panel extending between the inner and outer faces, wherein the endless sidewall member extends generally perpendicularly from the generally circular panel member, a circular cup-engaging flange portion operationally connected to the endless sidewall member, an aperture formed in the endless sidewall member, and a slide member operationally connected to the endless sidewall member for selectively covering the aperture.

Abstract: A produce container includes a receptacle, a lid and a hinge. The receptacle includes a mouth circumscribed by a rim and a base having an edge. The lid is associated with the receptacle to close off the month. The hinge attaches the lid to the receptacle and is located towards or at the rear of the receptacle. The edge is configured to cooperate with the hinge so as to facilitate disposition of the produce container in an erect position.

Abstract: A bottle cap assembly that includes a base portion that is releasably connected to a container. The base portion includes a top surface, a skirt portion having an inner surface, a breather hole formed in the top surface, a nozzle extending from the top surface, a plurality of female threads positioned on the inner surface of the skirt portion, and a plurality of gaps formed in the female threads along the length thereof. The plurality of female threads and associated gaps are operable to mate with male threads of at least two different containers to releasably connect the bottle cap assembly to the at least two different containers.

Abstract: The present invention proposes a topper for a container having an upper surface, the topper including: a body adapted to engage an upper surface of the container, and a movable perforation platform having at least one protruding perforating element, the perforation platform being pushable with respect to the body from a resting position to a working position wherein the perforating element perforates the upper surface of the container, wherein the perforation platform presents in resting position a first orientation and presents in working position a second orientation, the first and the second orientation differing by an angle of less than 30°. The present invention also proposes an assembly, and a method of using the assembly.

Abstract: The invention relates to a cap for closing the neck finish of a container —preferably a bottle—suitable for containing water or other liquids for human consumption (generically drinking water hereafter). For improving the possibilities of decoration/of marking the cap, this latter comprises: a top wall (2); an annular skirt (3) extending downward from the top wall (2) and having a bottom edge (4); reversible opening/closing means (5) of the cap (1) on the neck finish of the container, said means (5) being preferably screw thread means (5) located inside the cap (1), and more preferably on the inner face of the skirt (3); at least one decoration element (7); wherein: i. the top wall (2) is dug out with at least one dimple (5), preferably one dimple (5), more preferably a circular dimple (5); ii. at least one insert (6), preferably one (over)-molded insert (6), more preferably a disc (6), is designed to fill at least partially the dimple (5); iii.

Abstract: Disclosed is a dispensing tube assembly with tamper indication including a label with a main body portion and a tamper evident portion. The boundary between the label main body portion and tamper evident portion is defined by a perforated score. The dispensing tube assembly includes a tube portion and a cap portion. The label is adhesively attached to the dispensing tube assembly such that the label surrounds portions of both the tube and the cap and such that the tamper evident portion covers a portion of the cap end. The label also optionally includes a tear-away portion to facilitate separation of the tamper evident portion from the main body portion.

Abstract: A tamper evident tabbed sealing member for sealing to a rim surrounding a container opening is described that includes a multi-layer laminate configured to isolate a residual ring of material that remains on a container land area upon seal removal.

Abstract: A reusable cable tie comprises an elongated strap, made of semi-rigid plastic material, and a buckle, made of rigid plastic material, for interlocking with the elongated strap. The elongated strap includes a first end a second end, an inner side and an outer side. The inner side incorporates a rack with a multiplicity of teeth, alternating with a multiplicity of grooves. The multiplicity of teeth extends from the first end up to a flat indented zone adjoining the second end that is provided with several teeth and grooves, the several teeth projecting from the outer side in an external zone corresponding to a beginning of the flat indented zone. The buckle incorporates a cavity so shaped and sized as to allow a passage through of the first and the second end of the elongated strap.

Abstract: A beverage cartridge comprising an outer container, a sleeve, and a support device adapted for supporting a filter element. The sleeve comprises one or more protrusions extending towards the interior of the sleeve, and the support device comprises one or more recesses adapted for receiving the one or more protrusions. The outer container, the sleeve, and the support device are securely engaged. The outer container is made of a biodegradable and compostable fibre material such as, but not limited to, polylactic acid, bamboo, bagasse, or a combination thereof. At least a part of the sleeve and support device is made of a biodegradable and compostable material such as, but not limited to, polylactic acid, or a combination of biodegradable and compostable materials. Also disclosed is a method of manufacturing the beverage cartridge, and use of the support device in the manufacture of the beverage cartridge.

Abstract: Apparatuses and embodiments related to container carrying devices. A container carrying device includes a plurality of full or partial apertures, each with a neck-engaging locking mechanism to receive and hold a container. The neck-engaging locking mechanism can include a mechanism to assist to hold and retain a container in the container carrying device, such as a clamping finger, a vertically oriented flange, a locking tab, etc. In some embodiments, a container carrying device can have a mechanical release strip that enables a portion of the container carrying device to be torn off, such as along a tear line that passes through one or more apertures. When a mechanical release strip is torn off, the container being held by the aperture through which the mechanical release strip passes is freed.

Abstract: A package for holding one or more cup-contained comestible units in a vertical column, whereby the package is thermoformed of plastic in two mating flanged thin-walled clam-shell halves. The clam-shell halves together form one or more comestible compartments, each with an intermediate cup retainer ring for overlying the upper edge of a cup(s) to restrain the cup-wrapped comestible unit(s) from movement, and enabling clean insertion and removal of the comestible units without hand contact with toppings. Each compartment has a lower section for containing the cup, an upper section for containing topping above the cup, and an intermediate retainer ring.

Abstract: A packaging for holding an accessory part of a tool is disclosed. The tool may have a tool interface for transmitting torque to the accessory part. In an embodiment the packaging includes a first protrusion for engaging in the accessory part and a second protrusion for holding a portion of the accessory part, wherein the first protrusion has in one or more sections or along an entire circumference of the first protrusion a replication of a tool interface as an outer structure, and/or wherein the second protrusion has in one or more sections or along an entire circumference of the second protrusion a replication of the tool interface as an inner structure.

Abstract: Described herein are packaging materials and their use in manufacturing packaging containers having an opening device, and intended for food products.

Abstract: A package (10) for an elongated article has a sheet material with side (1, 6), upper (2, 5) and lower (3, 4) panels. The side panels are arranged to confront one another at a fin (20) and are at least partially adhered to one another at a longitudinal fin seal (28). The upper and lower panels extend from the fin to define a package body (12) which receives the elongated article. First and second end portions of the sheet material confront one another and are adhered to one another to form first and second end seals (16, 18) which enclose the interior cavity (14) of the package body. A starter line (36) is formed in the fin and extends from a free edge (24) thereof toward non-sealed portions (32) of the panels (1, 6) of the package.

Abstract: A bag is provided with a collapsible spout for directing the flow of the contents of the bag during pouring. The collapsible spout can include folds so that the collapsible spout can transition from a substantially flat undeployed configuration to a deployed spout-shaped configuration. The collapsible spout can also include a fastening mechanism so that an opening in the bag can be closed or resealed. A bag can also include a resealable opening for directing the flow of the contents of the bag during pouring. The resealable opening can include a panel with a fastening mechanism so that an opening in the bag can be closed or resealed.

Abstract: The invention relates to a paper bag for packaging of bulk material, having a standing bottom (2) and a valve bottom (3), a front wall (4) and a rear wall, the front wall and the rear wall being glued to each other in overlapping relationship, the paper bag further comprising cover sheets (5, 5?) for closing the standing bottom (2) and the valve bottom (3), wherein the cover sheet (5) of the standing bottom (2) and/or of the valve bottom (3) is provided with a tear open strip (6) which extends across the entire length of the bottom. It is characterized in that a foil (9) is placed below the standing bottom cover sheet (5) and/or below the valve bottom cover sheet (5?) and is removably glued to the paper bag (1) in such a manner that after tearing open of the standing bottom cover sheet (5) and/or of the valve bottom cover sheet (5?) the foil (9) still closes the paper bag (1) completely and sets the product free only after peeling off said foil.

Abstract: The present disclosure discloses a packing box in the field of outer packing technique in view of problems that the existing thick packing box occupies large space in transporting and storage and cannot be reused after disassembled due to adhering connections.

Abstract: The invention relates to an article which comprises a bottle of cosmetic product and a pack. The pack includes at least one wall having at least one region in relief suggesting, or even reproducing, a bottle shape so as to immobilize it with respect to the wall. The invention also relates to a pack for a bottle of cosmetic product and a method for removing a bottle of cosmetic product from a case.

Abstract: A packaging assembly for packaging an electric product is provided. The packaging assembly has a case body and a buffer structure. The buffer structure has two buffer elements. Each of the buffer elements has a body portion and two bent portions. When the body portion receives a first side of the electric product, the bent portions are bended to receive a second side of the electric product, and thus the body portion and the bent portions cover four corners of the electric product.

Abstract: An oxygen-absorbing container includes a container body having a multilayer structure constituted by an innermost layer, an outermost layer and an intermediate layer therebetween, the container body having an opening part on an upper part thereof; and a sealing member bonded to an upper end surface of the opening part of the container body to seal an opening of the opening part. The innermost layer and the intermediate layer are bent outward at an upper end of the opening part and form a flat part and a surface of the flat part forms the upper end surface of the opening part. When the sealing member is unsealed, part of the innermost layer on the upper end surface of the opening part is configured to be peeled off so as to leave an unsealed mark.