CN105307950A

CN105307950A - Packaging container

Info

Publication number: CN105307950A
Application number: CN201480024701.7A
Authority: CN
Inventors: J·哈达德
Original assignee: Elias Haddad Pty Ltd
Current assignee: Elias Haddad Pty Ltd
Priority date: 2013-04-09
Filing date: 2014-04-08
Publication date: 2016-02-03
Also published as: WO2014165902A1; MX2015014131A; CA2908713A1; EP2983999A1; ZA201507467B; US20160046436A1; RU2015146665A; JP2016520481A; SG11201508255WA; EP2983999A4; AU2014252754A1; KR20160019413A

Abstract

The present invention relates generally to packaging containers. The packaging containers include a vessel and a cover, and may be used in the food and beverage industry. In one aspect, the invention relates to packaging containers in which beverage ingredients may be stored, and from which a beverage may be prepared by adding a liquid to the ingredients may be consumed. The invention provides, in one aspect, a packaging container including a vessel defining a vessel base wall and an upstanding vessel side wall structure extending upwardly from the vessel base wall, defining an inner zone capable of retaining liquid, a cover defining a cover base wall and a cover side wall structure extending upwardly from the cover base wall configured to rest within the vessel side wall structure, whereby a void is defined between the vessel and the cover, and a circumferential seal adapted to seal the cover to an outer surface of the vessel below the vessel rim formation.

Description

Packing container

Technical field

The present invention relates to a kind of packing container by and large.Packing container comprises vessel and cover, and may be used in Food & Drink industry.On the one hand, the present invention relates to a kind of packing container, beverage ingredient can be stored in packing container, by preparing beverage to composition adding liquid, can consume beverage from packing container.But, should recognize that the present invention is not limited in this application.

Background technology

Traditionally, independent container is used for storage food or beverage ingredient to prepare Foods or drinks in a reservoir and Foods or drinks prepared by consuming from container.

The value volume and range of product that consumer demand causes being easy to the food consuming or only needed the form of simple preparation process to provide before consuming increases.Packaging so below becomes and becomes more and more popular: packaging can be used for storage food or beverage products and consume Foods or drinks from packaging after manufacturing.When after a purchase but consume before need preparation time, packaging must also be convenient to preparation.

Along with supermarket demand etc., specific industry advances production development.In Aviation Industry, such as, volume, weight and be easy to preparation and consume be important consideration.The volume of such as inflight meal and beverage packaging considerably improves cost.Equally, the quantity of the flight flight crew required for rate that flight flight crew can provide Food & Drink to serve, and particularly in Low-cost Aviation line, food and beverage sevice personnel through their extra earning during cabin.

More generally, selling and consuming in the hospitality industry of Food & Drink products, fast and easily preparation and the product that consumes can so that increase and sell and decrease the needs and the size reducing Catering Area that provide plate, cup.

Before consumption, need the example of the product of minimum preparation to be " instant noodles " that are packaged in advance in cup and the breakfast cereal be packaged in advance in bowl.Drying noodle composition may only need to add hot water before consumption.Dry breakfast cereal may only need to add cold milk before consumption.

This based food must be sealed in tamper-evident material usually, to meet hygienic requirements.Covered by the lid that aluminium foil or silicon are made at the edge of cup or bowl vessel top, lid is laid on cup or bowl top with flushing.The adhesives of such as heat activated adhesive is used to seal a lid on cup or bowl top.

A problem of this product is that the air of larger volume or gas are usually sealed in product, at noodles or between cereal ingredient and the lid of covering, to allow to add water or milk, and allow, when consuming, there is the less risk that the product of preparation is overflowed.The volume of these air or gas constitutes the long-pending major part of overall product.

Another problem is after removing lid, and adhesives may be retained on edge, or drops in the inner region of vessel before consumption.Residue adhesives is antihygienic and normally undesirable, particularly when they are present in Foods or drinks, or on the top that they are present in cup or bowl and between stage of exhaustion, the lip of customer may contact with them, or beverage may pass through them.

Before consuming, need another example of minimum preparation to be the cup containing pod bag.Pod bag is positioned in cup, bottom cup.Dry ingredient for drink to be positioned in pod bag and to use adhesives that aluminium film is sealed to pod bag top.Pod bag adheres to inside cup.Customer removes aluminium film from pod bag and adds water, prepares beverage.The problem of product is that beverage may or become contaminated before consumption between stage of exhaustion, this does not also meet food standard by contact adhesive or pod bag surface.Such as, be used for the glue of film adhered in place may remain in pod bag top after removing film, and glue may contact with beverage.And, beverage may between pod bag and the madial wall of cup seepage, cause the glue stain beverage for being adhered to by pod bag in cup.As pectin is thermal activation and water is hot, this problem is aggravated.Another shortcoming of this product is its complexity.

Above-mentioned discussion is intended to be convenient to understand background of the present invention.But should be appreciated that, above-mentioned discussion should not be considered to or admit that any content in these quoted contents has been part that is disclosed, known or common practise in Australia at the priority date of the application.

Summary of the invention

On the one hand, the invention provides a kind of packing container, comprising:

Vessel, these vessel limit vessel diapire, and from the upright vessel sidewall structure that vessel diapire upwards extends, limit the inner region that can keep liquid;

Cover, the cover side wall construction that this cover limits cover diapire and upwards extends from cover diapire, cover side wall construction is configured to be held in vessel sidewall structure, limits space thus between container and cover; And

Circumferential seal, this circumferential seal is suitable for being sealed on the outside face of vessel by cover in structure below, vessel edge.

Preferably, the inner periphery in the upper region of cover side wall construction is greater than the excircle of vessel diapire.These relative sizes will allow two or more packing containers stacking usually.

Vessel preferably have at the vessel edge of the upper free end of vessel sidewall structure structure, and cover side wall construction has the cover edge structure being positioned structure top, vessel edge.Vessel edge structure and cover edge structure strengthen the upper region of its respective side walls structure.Vessel edge structure also provides a surface, if customer is from vessel beverage or liquid food product, the lip of customer can be shelved on a surface.

Cover edge structure preferably has the flange extended radially outwardly from the upper end of cover side wall construction, and flange is continuous print in the circumferential.In use, flange provides a surface to be held on the top of vessel edge structure.Preferably, cover edge structure at least partially radially outer to downward-extension with limit annular towards under groove thus in use hold vessel edge structure.When cover edge structure holds vessel edge structure, cover unlikely moves to side relative to vessel.When cover edge is configured in the textural extension in vessel edge, vessel edge structure is subject to protection and avoids polluting, and such as, avoids by the dust fallen above it or avoids adhesives such as to adhere to glue stain above it.It may be important for maintaining vessel edge structure health, because when from vessel inner region consumable liquid, the lip of customer can be held on vessel edge and/or liquid may through vessel edge.

Packing container preferably includes circumferential seal, and it is suitable for being sealed on the outside face of vessel by cover in structure below, vessel edge.Being sealed to by cover on vessel allows the inclusion be stored in inner region to keep health.

Circumferential seal preferably includes the film that circumference extends, and the film that circumference extends is fixed to the lower edge district on vessel outside face with having adhesive bonding property.Vessel outside face film being adhered to structure below, vessel edge ensure that after removing circumferential seal, and it is textural that the residual fraction of adhesives can not be retained in vessel edge.

Circumferential seal preferably includes the film that circumference extends, and the film that circumference extends has the upper limb district on the radial direction surface toward the outside being adhesively fixed to cover.Preferably, the upper limb district that the described circumference of film extends adhesively is fixed to the outside face of cover edge structure.When on the radial direction that film adheres to cover surface toward the outside or on the outside face covering edge structure, vessel edge structure keeps adhesive-free.

Circumferential seal is preferably formed by tubular film at least in part.Alternatively, circumferential seal can be formed by film bar or band at least in part, and film bar or band can around the radial surface toward the outside of the circumference of cover and the one or more surface wrap covering edge structure.

Circumferential seal preferably include at least in part through its extend open instruction.Open instruction and comprise one or more perforation line.Open the weakness indicating and can be formed in circumferential seal, before removing cover from vessel, be convenient to remove sealing member.Open instruction and can comprise pulling-on piece, this pulling-on piece of customer's tractive is to remove sealing member.Alternatively, customer can reverse circumferential seal and/or cover is being opened the sealing member of instruction place to break and removing sealing member.

Preferably, Foods or drinks product or one or more compositions for the manufacture of Foods or drinks product are present in the space limited between vessel and cover.The size of vessel and cover can make whole inclusion to be positioned over above vessel diapire and below cover diapire.As an alternative or supplement, inclusion also may reside in vessel sidewall structure and covers between side wall construction.

Inclusion is preferably dry, alleviates packaging weight of inclusions in a reservoir.Inclusion is preferably adapted to pass through adding liquid such as heat or cold water or milk to manufacture beverage or food product.

Preferably, vessel and cover control oneself (self-supporting) dimensionally.Once remove sealing member and cover, the vessel auxiliary maintenance inclusion that size is controlled oneself and/or Foods or drinks product, and improve customer can consume Foods or drinks product easiness from vessel.The cover that size is controlled oneself is easier to be inserted in during manufacture in vessel inner region usually.

Preferably, cover diapire is configured at least one lower area being received in the vessel extended below the topmost of cover diapire when multiple container stack.Easily, in stack arrangement, be positioned stacking in the vessel diapire of the second packing container above the first packing container be oriented to cover diapire that is contiguous or contact the first packing container.Any volume reduced when stacked between packing container reduces the cumulative volume of container stack.

Vessel are preferably suitable for keeping Foods or drinks product between edible stage of exhaustion.Being suitable for the inclusion of packing for preparing Foods or drinks product, being suitable for preparing Foods or drinks product wherein, and the vessel being suitable for consuming Foods or drinks product from it are especially easily.

Preferably, cover diapire is from descending most surrounding end upwards recessed to form cavity.

On the other hand, the invention provides a kind of packing container, comprising:

Cover, covers and limit cover diapire, and from the cover side wall construction that cover diapire upwards extends, cover side wall construction is configured to be held in vessel sidewall structure, limits space thus between container and cover;

Wherein vessel are included in the vessel edge structure of the upper free end of vessel sidewall structure, cover side wall construction has the cover edge structure being positioned structure top, vessel edge, cover edge there is the flange extended radially outwardly from the upper end of cover side wall construction, flange is continuous print in the circumferential, and cover edge structure is formed marmon clamp, in use to engage vessel edge structure and to keep vessel edge structure releasedly.

On the other hand, the invention provides two or more packing containers, two or more packing containers stacking.Stacking package container assistant conveyance.Preferably, stacking volume is less than the volume sum of indivedual packing container.Reduce the corresponding reduction that volume causes storage and traffic cost in this way.Volume reduces the convenience also improving customer's storage package container, allows customer to assemble more substantial packing container in given space.

Preferably, two or more containers can vertical stacking, and when stacked, the lower cover diapire of lower container engages with the vessel diapire of upper container.

On the other hand, the invention provides a kind of packing container for heat food product.In this embodiment, packing container is suitable for storing one or more compositions.One or more compositions can in a reservoir with liquid combination.Then before consumption, can one or more compositions of heating in combination and liquid in a reservoir.Preferably, exist more than a kind of composition.Preferably, liquid is water.Preferably, composition and water combine by stirring.Preferably, the composition of combination and water heat to produce food product in micro-wave oven.Alternatively, the composition of combination and water can cure to produce food product in conventional domestic oven.Preferably remove cover 14 before heating.Food product can directly from vessel consumption or removing post consumption from vessel.

In this regard, vessel are preferably formed by the applied polyacrylic cardboard of thin layer, and this makes vessel waterproof.Be different from polyethylene, polypropylene can have the advantage that can heat in micro-wave oven.

Accompanying drawing explanation

Only in the illustrated manner the preferred embodiments of the present invention are described with reference to accompanying drawing, in the accompanying drawings:

Fig. 1 is the transparent view of packing container according to a preferred embodiment of the invention.Cover side wall construction is held in vessel sidewall structure and cover is sealed on the outside face of vessel by circumferential seal.

Fig. 2 is the side cross-sectional, view of the packing container according to Fig. 1.

Fig. 2 A is the cross sectional side section drawing of the part of the packing container illustrated in greater detail according to Fig. 1, wherein, cover edge structure a part radially outer to downward-extension with limit annular towards under groove, annular towards under groove hold vessel edge structure.

Fig. 2 B is the cross-sectional side elevational section drawing of the part of the packing container illustrated according to another preferred embodiment of the invention, wherein, cover edge structure is formed marmon clamp in use to engage described vessel edge structure and to keep described vessel edge to construct releasedly.

Fig. 3 is the side cross-sectional, view of the packing container according to Fig. 1, and wherein, Foods or drinks product or one or more compositions are present in the space between vessel and cover.

Fig. 4 is the side cross-sectional, view stacking according to some packing containers of Fig. 1.

Fig. 5 is the side cross-sectional, view of the packing container according to another preferred embodiment, and wherein, the lower area of vessel is smooth substantially.

Fig. 6 is the stacking side cross-sectional, view of two packing containers according to another preferred embodiment, and wherein, lower cover diapire is configured to the lower area being received in the upper vessel extended below the topmost of lower cover diapire.

Fig. 7 is the side cross-sectional, view stacking according to three packing containers of Fig. 6, and wherein, lower cover diapire receives the lower area of upper vessel, reduces stacking bottom-to-top-height.

Fig. 8 is the side cross-sectional, view stacking according to two packing containers of another preferred embodiment, and wherein compared with the embodiment of Fig. 1, cover diapire raises, and adds the volume in space.

Fig. 9 is the side cross-sectional, view of the packing container according to another preferred embodiment, wherein optimizes the size of container from the embodiment of Fig. 1 for heated food product.

Detailed description of the invention

With reference to figure 1, the circumferential seal of tubular film 16 form that packing container 10 according to a preferred embodiment of the invention comprises the vessel 12 of cup-shaped formula, cover 14 and extends in circumference.Comprise according to the tubular film 16 of preferred embodiment and open instruction, open instruction and comprise two perforation lines 18,20, these two perforation lines 18,20 pass vertically through the only about half of extension of the height of tubular film 16 from lower edge 46.Open instruction and also comprise sagging pulling-on piece 22.In use, customer can by pinching and this pulling-on piece 22 of tractive and this tubular film 16 broken by tear perforation line 18,20, and perforation line 18,20 is lines the most weak in tubular film 16.Perforation line 18,20 does not extend to the uppermost edge of tubular film 16, with when multiple packing container 10 heap superimposition is cancelled stacking, minimizes the possibility that tubular film 16 is torn unintentionally.Circumferential seal is preferably tamper-evident.

With reference to figure 2, the upright vessel sidewall structure 26 that vessel 12 limit vessel diapire 24 and upwards extend from vessel diapire 24, limits the inner region 28 that can keep liquid.The vessel 12 represented in fig. 2 are circular and are made up of the cardboard with double-walled construction.Vessel 12 can be made up of suitable food products level plastic material.Preferably, vessel are made by being coated with the poly cardboard of thin layer, and this makes vessel waterproof and by cardboard seam welding together.Lateral cross section shape will without the need to being circle.

The cover side wall construction 32 that cover 14 limits cover diapire 30 and upwards extends from cover diapire 30.Cover side wall construction 32 is configured to be shelved in vessel sidewall structure 26, wherein the inside face 71 of intermediate flange 70 contact side wall construction 26.Cover is preferably made up of polypropylene.Space 34 is limited between vessel 12 and cover 14, mainly between cover diapire 30 and vessel diapire 24.

With reference to figure 2A, vessel 12 are included in the vessel edge structure 36 of the upper free end of vessel sidewall structure 26, and cover side wall construction 32 comprises cover edge structure 38, cover edge structure 38 is positioned above vessel edge structure 36, and preferably has the part be held on vessel edge structure 36.

Cover edge structure 38 has the flange 40 extended radially outwardly from the upper end of cover side wall construction 32, and flange 40 is continuous print in circumference.Cover edge structure 38 a part 42 radially outer position to downward-extension with limit annular towards under groove 73 with in use hold vessel edge structure 36.

With reference to figure 2B, in another embodiment of the invention, cover edge structure 38 is formed as marmon clamp 44, engages in use to construct 36 with vessel edge and keeps vessel edge to construct 36 releasedly.

Tubular film 16 has lower edge district 46, and lower edge district 46 utilizes inferior segment adhesives 48 and is fixed on the outside face of vessel 12.Tubular film 16 also has upper limb district 50, upper limb district 50 utilize upper district adhesives 52 be fixed to cover towards upper surface 54 or more particularly, as shown in the figure, be fixed on the upper surface 54 of flange 40.Alternatively, upper limb district 50 can utilize adhesives be fixed to the flange 42 of cover 14 on radial direction surface toward the outside.

With reference to figure 3, one or more dry ingredients 62 for the manufacture of beverage products or food product are present in space 34, thus, can adding liquid such as heat or cold water or milk to make required Foods or drinks product.

With reference to figure 4, about each packing container 10, the inner periphery with the upper region of the cover side wall construction 32 of corresponding interior diameter 56 is greater than the excircle of the cover diapire 30 with corresponding external diameter 58.Each cover diapire 30 is configured to be received at least one lower area 60 of the vessel 12 extended below the topmost of cover diapire 30 thus allows multiple container stack, and one, in another, forms stacking 80.

The volume of stacking 80 is less than the volume sum of indivedual packing container 10.When indivedual packing container 10 is stacking, such as, at the factory building of stacking package container, in downstream by highway, aircraft or ocean freight to during supermarket shelves or may on other region such as aircraft cabin of consumer package product time, which save space.

With reference to figure 5, in a preferred embodiment, the lower area of vessel and cover diapire are smooth substantially, and they are used for making multiple packing container be easy to stacking.When being such as made up of plastic material, vessel can be made with substantially smooth lower area easily.

With reference to figure 6, the diapire 30 of cover 14 from cover 14 descend most surrounding end 81 upwards indentation to form cavity 82 at mediad.Chamber 82 volume of effectively expanding space 34 is to increase the volume for keeping desired inclusion.When two containers 10,10 ' of this another preferred embodiment according to the present invention are stacking by moving in the direction of the arrow 83, the diapire 30 of the cover 14 of lower container 10 is configured to the lower area 83 of the vessel 12 receiving upper container 10 ', and wherein the lower area 83 of vessel finally extends below the topmost of the diapire 30 of cover 14.

With reference to figure 7, can be configured to make when stacked according to the container of Fig. 6, the cover diapire 30 of lower container 10 engages with the vessel diapire 24 of upper container 10 '.Compared with Fig. 6, reduce the height of stacking each container.

With reference to figure 8, of the present invention another preferred in, compared with the embodiment of Fig. 6, cover diapire raises, and the chamber 82 formed by raising cover diapire 30 increases further, thus increases the volume in space further.Compared with Fig. 6, each container height of stacking 80 keeps identical.

With reference to figure 9, of the present invention another preferred in, compared with the embodiment of Fig. 1, by increasing the height of cover diapire 30, void volume increases, and reduces container height.These changes make container be more suitable for for heated food product, such as muffin or cake.Increase void volume to be convenient to store more substantial dry ingredient, convenient especially when this volume at dry ingredient is relatively high compared with the liquid volume of will be added by customer.The bottom-to-top-height reducing container makes to be easier to directly consume solid contents from vessel, such as, utilize utensil such as soup ladle, fork or chopsticks.

In use, customer removes cover 14 and inner region 28 to vessel 12 adds desired liquid from packing container 10.Customer combines liquid and dry ingredient 62 to form beverage or food product in inner region 28.User is the direct inner region 28 beverage product from vessel or edible food product then.Packing container 10 uses simply and convenience.

In another aspect of this invention, Foods or drinks product to be present in space 34 and customer removes cover 14 simply and consumes Foods or drinks material from vessel inner region 28.

If hot liquid such as hot water or milk add vessel to, vessel must be made up of fully heat-resisting material.Vessel preferably have sufficient insulating property (properties) can grip it with the customer when consuming heated food or drink material from vessel.Vessel are preferably double-walled dixie cup, and it can be made in a usual manner.

Cover is preferably made up of food grade plastic and can is molded by regular injection and makes.

The wall of cover side wall construction is preferably thinner, and one, this auxiliary package container is stacking inside another.In an alternative em bodiment, cover is made up of thin plastic, and during manufacture, thin plastic is by vacuum draw and remain in the cup containing composition.

Except protection vessel edge structure, cover also protects any inclusion, and such as Foods or drinks product or one or more compositions are avoided polluting.

Tubular film can be made of plastics and be preferably semi-translucent.Preferably, tubular film is made up of heat-shrinkable plastics.

The assembling of packing container is usually directed to drying objects, in particular fluid composition to be placed in cup, is positioned over by cover in cup, above composition, and is sealed on cup by cover.

When being configured to adding liquid before consuming food product, inclusion is preferably cereal such as breakfast cereals and liquid is preferably milk.Alternatively, inclusion can be dessert and liquid can be sauce such as mousse.In another substitutes, inclusion can be Pizza or noodles, such as noodle soup product and liquid can be hot water.

When being configured to adding liquid before consuming beverage products, inclusion is preferably for the manufacture of the dry ingredient of beverage products.Non-limiting, beverage products is preferably hot chocolate, instant coffee or tea-drinking.

Although describe the present invention with reference to specific embodiment, should recognizing when not departing from scope of the present invention, various modifications and variations can be made to the present invention.Such as, the present invention can be applied to the food product in bowl, and vessel can be not around the shape of axisymmetrical, such as have the bowl of square shaped top section.

Claims

1. a packing container, comprising:

Vessel, the upright vessel sidewall structure that described vessel limit vessel diapire and upwards extend from described vessel diapire, limits the inner region that can keep liquid;

Cover, the cover side wall construction that described cover limits cover diapire and upwards extends from described cover diapire, described cover side wall construction is configured to be held in described vessel sidewall structure, limits space thus between described container and described cover; And

Circumferential seal, described circumferential seal is suitable for being sealed on the outside face of described vessel by described cover in structure below, vessel edge.

2. packing container according to claim 1, is characterized in that, the inner periphery in the upper region of described cover side wall construction is greater than the excircle of described vessel diapire.

3. packing container according to claim 1 and 2, it is characterized in that, described vessel are included in the vessel edge structure of the upper free end of described vessel sidewall structure, and described cover side wall construction has the cover edge structure being positioned structure top, described vessel edge.

4. packing container according to claim 3, is characterized in that, described cover edge there is the flange extended radially outwardly from the upper end of described cover side wall construction, and described flange is continuous print in the circumferential.

5. packing container according to claim 4, is characterized in that, described cover edge structure at least partially radially outer to downward-extension with limit annular towards under groove, thus in use hold described vessel edge structure.

6. packing container according to claim 4, is characterized in that, described cover edge structure is formed marmon clamp, in use to engage described vessel edge structure and to keep described vessel edge to construct releasedly.

7. packing container according to any one of claim 1 to 6, is characterized in that, described circumferential seal comprises the film that circumference extends, and the film that described circumference extends is fixed to the lower edge district on the described outside face of described vessel with having adhesive bonding property.

8. packing container according to any one of claim 1 to 6, is characterized in that, described circumferential seal comprises the film that circumference extends, and the film that described circumference extends has the upper limb district on the radial direction surface toward the outside being adhesively fixed to described cover.

9. packing container according to claim 8, is characterized in that, the upper limb district of the described circumference extension of described film is adhesively fixed to the outside face of described cover edge structure.

10. packing container according to any one of claim 1 to 9, is characterized in that, described circumferential seal is formed by tubular film at least in part.

11. packing containers according to any one of claim 1 to 10, is characterized in that, also comprise: what extend through described circumferential seal at least in part opens instruction.

12. packing containers according to claim 11, is characterized in that, described in open instruction and comprise one or more perforation line.

13., according to packing container in any one of the preceding claims wherein, is characterized in that, Foods or drinks product or one or more compositions for the manufacture of Foods or drinks product are present in described space.

14. packing containers according to claim 13, is characterized in that, one or more compositions described are dry and for the manufacture of beverage products.

15., according to packing container in any one of the preceding claims wherein, is characterized in that, described vessel and described cover are controlled oneself dimensionally.

16. containers according to claim 15, is characterized in that, described cover diapire is configured at least lower area being received in the described vessel extended below the topmost of described cover diapire when described multiple container stack.

17., according to packing container in any one of the preceding claims wherein, is characterized in that, described vessel are suitable between stage of exhaustion, keep Foods or drinks product.

18., according to two or more packing containers in any one of the preceding claims wherein, is characterized in that, stacking two or more packing containers described.

19. two or more packing containers according to claim 18, is characterized in that, described stacking volume is less than the volume sum of described indivedual packing container.

20. packing containers according to any one of claim 1 to 17, is characterized in that, described cover diapire from descend most surrounding end upwards indentation to form cavity.

21. packing containers according to claim 20, is characterized in that, two or more in described container can vertical stacking, and when stacked, the lower cover diapire of described lower container engages with the described vessel diapire of upper container.