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US3804289A - Container and closure - Google Patents

Container and closure Download PDF

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Publication number
US3804289A
US3804289A US23575372A US3804289A US 3804289 A US3804289 A US 3804289A US 23575372 A US23575372 A US 23575372A US 3804289 A US3804289 A US 3804289A
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Grant
Patent type
Prior art keywords
container
wall
cover
side
rib
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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R Churan
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GIAMPA DAWN M
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Vulcan Plastics Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40Details of walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00Nestable, stackable, or joinable containers; Containers of variable capacity
    • B65D21/02Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0217Containers with a closure presenting stacking elements
    • B65D21/0219Containers with a closure presenting stacking elements the closure presenting projecting peripheral elements receiving or surrounding the bottom or peripheral elements projecting from the bottom of a superimposed container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0204Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342Central part of the lid
    • B65D2543/00398Reinforcing ribs in the central part of the closure
    • B65D2543/00416Reinforcing ribs in the central part of the closure circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/005Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container both cup and skirt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/00648Flange or lip
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00675Periphery concerned
    • B65D2543/00685Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/0074Massive bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00796Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00953Sealing means
    • B65D2543/00962Sealing means inserted
    • B65D2543/00972Collars or rings

Abstract

This invention relates to a molded plastic open-end container and a cover which is affixed to the container so as to effect a sealed-tight closure on the container. The cover has an annular inverted U-shaped channel into which the upper edge of the container is received, with appropriate interlocking means being provided on the container and cover to secure the cover to the container. The cover has an annular outer wall which extends a pre-determined length below the upper edge of the container, and the latter has an annular bumper rib and an annular drip rib about its side wall. These ribs are spaced from the lower edge of the cover''s annular outer wall and are proportioned to cooperate with one another to retain the container in spaced relationship to another container, to protect against the cover being inadvertently dislodged by another container engaging beneath the lower edge of the cover''s annular outer wall and forcing the cover to pop off of the container.

Description

United States Patent [191 Churan 51 Apr. 16, 1974 CONTAINER AND CLOSURE [75] Inventor: Roy G. Churan, Oak Lawn, 111.

[73] Assignee: Vulcan Plastics Inc., Addison, 111.

[22] Filed: Mar. 17, 1972 [21] Appl. No.: 235,753

Primary Examiner-George E. Lowrance Attorney, Agent, or Firm-Dominik, Knechtel, Godula & Demeur [5 7] ABSTRACT This invention relates to a molded plastic open-end container and a cover which is affixed to the container so as to effect a sealed-tight closure on the container. The cover has an annular inverted U-shaped channel into which the upper edge of the container is received, with appropriate interlocking means being provided on the container and cover to secure the cover to the container. The cover has an annular outer wall which extends a pre-determined length below the upper edge of the container, and the latter has an annular bumper rib and an annular drip rib about its side wall. These ribs are spaced from the lower edge of the covers annular outer wall and are proportioned to cooperate with one another to retain the container in spaced relationship to another container, to protect against the cover being inadvertently dislodged by another container engaging beneath the lower edge of the covers annular outer wall and forcing the cover to pop off of the containen 2 Claims, 6 Drawing Figures CONTAINER AND CLOSURE This invention relates, in general, to an improved container and closure construction and, in particular, to an improved molded plastic open end container and cover therefor.

The molded plastic open end container of the present invention has a plastic cover of the so-called snap-on type, that is, one which is affixed to the plastic container in a fashion such as to effect a sealed-tight closure'thereon, without the need of additional securement means such as, for example, a metal ring seal. Plastic closures of this type usually are provided with an annular inverted U-shaped channel about its top wall structure into which the upper edge of the open end container is received. An annular bead or curl is provided about the periphery of the upper edge of the container, and one wall of the U-shaped channel is provided with interlocking means which interlock with this bead or curl to affix the closure to the container. The

U-shaped channel, furthermore, generally is relatively deep so that the upper edge is deeply seated therein, to effect a sealed-tight engagement. In fact, in many cases, the upper edge of the container, the bead or curl, the U-shaped channel and the interlocking means are so proportioned that one wall of the U-shaped channel must be cut or slit about its periphery, in order to break the sealed-tight engagement between the container and the closure, to remove the latter. Alternatively, some constructions are adapted to receive a tool such as a screwdriver or other special instrument beneath and between the container and the closure to effect removal.

While ideally the closures are fixedly secured to the containers so that the closures, in fact, must be forcibly removed generally in the manner described above, the fact is that many closures or covers are inadvertently dislodged during shipping, thus the contents of the containers are spilled. This inadvertent removal normally is caused by or results from the containers shifting with respect to one another in a fashion such that the cover or a portion of one container engages beneath the lower edge of the cover on another container, with the result that the container is supported in a tilted position. It the container then should be caused to bounce, the resulting upward force on the cover many times causes the cover to pop off of the container.

While this problem can be eliminated in various different fashions, for example, by using a ring seal in combination with the closure, the use of such means generally defeats the advantages of these 4 so-called snap-on type closures. Accordingly, the problem exists and improved means are being sought to eliminate this objectionable feature, while retaining the advantages of the snap-on type closures.

The problem is somewhat compounded by the fact that the molded plastic containers are generally resilient and any flexure of the side walls of the container has a tendency to weaken the sealed-tight engagement between the closure and the container. Again, additional rigidity and dimensional stability can be provided by simply adding a number of supporting ribs or flanges to the container's side walls. However, in this case also, simply adding these support ribs is not economically feasible since obviously additional plastic material is required to provide them, and the cost of doing so results in a container which is economically uncompetitive. Furthermore, it is generally recognized that the users of the containers require, or at least desire, the maximum space available on the side walls for printed material, for decorative and/or advertising purposes. The addition of a number of spaced apart supporting ribs on the side wall of the containers obviously reduces the amount of available space. Whenever support ribs have been provided, these support ribs normally have been formed to extend outwardly substantially perpendicular to the side wall of the container. With this type of construction, particularly when one of the support ribs also functions as a drip guard, the support ribs usually are great dust collectors and the dust and/or the drips of the product are very difficult to clean off of them. This feature also is objectionable, particularly when the container contains a food product.

Accordingly, it is an object of the present invention to provide an improved molded plastic open-end container and cover therefor.

More particularly still, it is an object to provide an improved molded plastic open-end container and cover combination constructed in a fashion such as-to prevent the cover from being inadvertently dislodged during shipping or storage.

Still another object is to provide an improved molded plastic open-end container and cover therefor of the above-described type which can be molded without the need of additional material or an increase in the molding cycle thereof.

Still another object is to provide an improved molded plastic open-end container and cover therefor having improved rigidity and dimensional stability, yet with maximum space available on the side wall for printed material, for decorative and/or-advertising purposes.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

The above objectives are accomplished with a molded plastic open-end container and a cover which is affixed to the container so as to effect a sealed-tight closure on the container. The cover has an annular inverted U-shaped channel into which the upper edge of the container is received, with appropriate interlocking means being providedon the container and cover tosecure the cover to the container. The cover has an annular outer wall which extends a pre-determined length below the upper edge of the container, and the latter has an annular bumper rib and an annular drip rib about its side wall. These ribs are spaced from the lower edge of the covers annular outer wall and are proportioned to cooperate with oneanother to retain the container in spaced relationship to another container, to protect against the cover being inadvertently dislodged by another container engaging beneath the lower edge of the covers annular outer wall and forcing the cover to pop off of the container. Furthermore, these ribs function to add rigidity and dimensional stability to the container, and are formed such that they can be easily wiped clean. In addition, these ribs are formed and positioned to provide the maximum possible space on the side wall of the container, and such that the container can be molded without the need of additional material or an increase in the molding cycle thereof.

The invention accordingly comprises an article of manufacture possessing the features, properties, and the relation of elements which will be exemplified in the article hereinafter described, and the scope of the invention will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:

FIG. 1 is a side plan view of a molded plastic open end container and cover constructed in accordance with the present invention;

FIG. 2 is a bottom plan view of the container illustrated in FIG. 1;

FIG. 3 is a bottom plan view of the cover on the container of FIG. 1;

FIG. 4 is a partial sectional view, generally illustrating the manner in which the cover is affixed to the container to provide a sealed tight closure for the container;

FIG. 5 is a partial side plan view, partially sectionalized, of a pair of the containers generally illustrating the manner in which the containers can be stacked in a nested relationship; and

FIG. 6 is a side plan view of several of the containers of FIG. I, generally illustrating the manner in which the drip rib and the bumper rib on the container cooperate to prevent the cover on a container from being inadvertently dislodged therefrom.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Referring now to the drawings, in FIG. 1 there is shown a molded plastic open end container 10 having a cover 11 secured thereto, to provide a sealed-tight closure for the container 10. The container 10 has a bottom wall 12 and a side wall 13 which extends upwardly therefrom and is slightly tapered so as to be of larger diameter at its upper open end. A head like curl 14 is formed about the upper edge of the side wall 13, which bead like curl 14 is adapted to interlock with an interlocking flange 27 on the outer wall 24 of the cover 11, as explained more fully below.

An annular drip rib 15 extends completely about the periphery of the side wall 13 of the container 10, in a predetermined spaced position from the bead like curl 14 on the upper edge of the side wall. This drip rib 15, as can be best seen in FIG. 4, extends outwardly and angularly downwardly from the side wall 13 so as to present a tapered top surface. The drip rib 15 could be a solid rib which is generally triangular shaped in crosssection, however, for reasons set forth more specifically below, the drip rib 15 preferably and advantageously is simply a outwardly extending, angularly dis posed narrow flange.

Spaced below the drip rib I5 is a bumper rib 16 which, as can be best seen in FIGS. 2 and 4, is formed ofa top wall 17 which extends outwardly and angularly downwardly from the side wall 13 and an end wall 18 which is integrally affixed to the terminal peripheral edge of the top wall 17 and extends substantially vertically downwardly and outwardly so as to be of a larger diameter at its lower terminal edge. An open cavity is formed between the bumper rib 16 and the side wall 13, and within this open cavity there is provided a number of radially spaced spacer ribs 21. These spacer ribs 21 provide additional rigidity to the bumper rib 16 and, furthermore, prevent the upper edge of another container from seating within the open cavity between the bumper rib l6 and the side wall 13, when the containers are nested within one another. A wire bail is affixed to the container 10, by a pair of bail handle attachments 19 which are integrally formed with the bumper rib 16, in diametrically opposed relationship.

The cover 11, as can be best seen in FIGS. 3 and 4, has a top wall structure 23 about which is provided an inverted U-shaped channel which is adapted to receive therein the upper edge of the side wall 13 of the open end container 10. This inverted U-shaped channel is formed of an outer wall 24 and a concentric inner wall 25 having a top section 26 coupling them together. An interlocking flange 27 is formed on the interior surface of the outer wall 24 which interlocking flange 27, as indicated above, is adapted to interlock with the bead like curl 14 about the upper edge of the side wall 13, to affix the cover 11 to the container 10. An extension 28 is provided on the inner wall 25, which extension 28 extends beneath the top wall structure 23 of the cover 11, as can be best seen in FIG. 4. This extension 28 extends to a greater depth within the container 10, to provide a better locking engagement between the cover 11 and the container 10. An annular seating wall 29 is spaced inwardly from the inner wall 25 and is concentric with the latter. This seating wall 29 in conjunction with the top wall surface 23 of the cover 11 provides a seating cavity of substantial depth for receiving the lower edge of a container 10, for nesting the containers one atop another. The interior diameter of the seating wall 29 substantially corresponds to the diameter of the lower edge of the container 10, so that the lower edge of the container 10 can be firmly seated therein and prevent it from laterally shifting during nesting. A number of support ribs 31 are provided in radially spaced relationship between the inner-wall 2S and the seating wall 29, to provide additional rigidity to the cover 11 and particularly to the seating wall 29.

A gasket 30 preferably and advantageously is secured within the inverted U-shaped channel about the periphery of the cover 11, and the cover 11 and the container 10 are proportioned so that the gasket 30 is compressed and provides a sealed-tight engagement between the cover and the container when the interlocking flange'27 and the bead like curl 14 are lockingly engaged with one another. Also, while the top wallstructure 23 of the cover 11 can be of a solid construction, with the cover 11 being adapted for removal, a pour spout opening 32 can be provided therein for receiving pour spouts of conventional construction. In the latter case, the cover 11 is normally not removed, the product being dispensed through the pour spout secured within the pour spout opening 32.

As indicated above, during shipping and/or storage of the containers 10, many times the containers are caused to shift with respect to one another in a fashion such that the cover or a portion of one container engages beneath the lower edge of the outer wall 24 of the cover on another container, with the ,result that the container is supported in a tilted position. If the container then is caused to bounce as during transit, the resulting upward force on the cover many times causes the cover to pop off of the container. This problem is substantially if not completely eliminated with the container and cover construction of the present invention, by appropriately forming the outer wall 24 of the cover 11 and the drip rib l5 and the bumper rib 16 on the side wall 13 of the container 10. More specifically, the length of the outer wall 24 of the cover 1 l and the position of the drip rib 15 on the side wall 13 of the container are such that the drip rib is spaced immediately below the lower edge of the outer wall 24 and extends horizontally outwardly so that its outermost diameter is the same as or substantially corresponds to the outer diameter of the outer wall 24. Being of the same diameter and being spaced just below the lower edge of the outer wall 24, the drip rib 15 substantially prevents another object, particularly the cover on another container from engaging beneath the lower edge of the outer wall 24, as can be best seen in FIG. 6 wherein one, container 10 is illustrated in a tilted position with'respect to another one of the containers [0. Therefore, by preventing'a cover from engaging beneath the lower edge of the outer wall 24 on the cover 11 of another container, the possibility of an upward force being exerted on the outer wall 24 and having the cover inadvertently popped off of the container is virtually eliminated.

In addition, the bumper rib 16 on the side wall 13 of the containers 10 cooperate with the drip rib 15 to prevent this inadvertent removal of a cover 11 from a container 10. As can be seen in the drawings, the outermost diameter of the bumper rib 16 is. greater than the diameter of the outer wall 24 of the cover 11, hence these bumper ribs 16 function to retain the containers in a spaced apart relationship .when nested'together in side-by-side abutting relationship. Under static conditions and even while being subjected to some degree of jostling around during shipping, the bumper ribs 16 prevent the, cover 11 on one container from engaging or interlocking with the cover on another container. Further still, the diameter of the bumper ribs 16 and the positioning of the latter beneath the drip ribs 15 are such that the bumper rib 16 engages the side wall 13 of a container when the upper edge of the cover 11 on a container normally. would be in a position to engage beneath the lower edge of the outer wall 24 of a cover II, generally as illustrated in FIG. 6. The bumper rib 16 thus cooperates with the drip rib 15 to prevent the cover 11 on another container from engaging beneath the lower edge of the outer wall 24, hence the possibility of a force being exerted on the latter to inadvertently cause the cover 11 on the container to pop off of his eliminated. Furthermore, ifa container 10 tilted in a fashion as illustrated in FIG. 6 is now bounced or caused to shift so that it resumes or attempts to resume its normally seated position, the tendency for the latter to do so is assisted by the fact that the loweredge of the bumper rib 16 engages and slides down the tapered top surface of the top wall 17 of the bumper rib. In doing so, the container 10, of course, also is forcibly urged away from and in spaced relationship to the other container thus also eliminating the tendency for one container to get hung up on another container.

It can also be seen that the construction of the drip rib l5 and the bumper rib 16 is such that both present a top surface which is tapered downwardly, and these top surfaces can be easily and quickly wiped clean of any drips or dust which may collect on them. The latter, as indicated above, is a very desirable feature, particularly when the container contains a food product which may be contaminated by the dirt which may collect on these ribs. Furthermore, by forming the ribs 15 and 16 in the above-described fashion, particularly the bumper rib 16, it is found that these ribs add sufficient rigidity and dimensional stability to the container that the thickness of the side walls of the containers can be reduced to the extent that these ribs can be added to the container 10, without the need of additional material. Accordingly, a container 10 can be molded using the same or substantially the same amount of material which is normally required to mold similar types of containers. In this respect, the construction isalso such that the molding cycle time for molding a container 10 also is the same or substantially the same as the molding cycle for presently available similar types of containers. Further still, by constructing the bumper rib 16 in the described fashion and spacing the latter from the drip rib 15, it can be seen that very little of the space available on the side walls is interrupted by the ribs. Therefore a substantial amount of spacei's available for printed matter, for decorative and/or advertising purposes.

Containers 10 of the above-described construction were tested by an independent testing organization, and the results of these tests indicate that the bumper rim 16 provides several other improvements in the way of rigidity and dimensional stability. One such test consisted of a drop test, during which the containers 10 were filled anddropped from various heights, onto their sides. The results of these side drop tests indicate that the containers with the bumper rib 16 are far more rigid and will withstand a greater drop before the container collapses or buckles and permits its cover to be displaced, in comparison to other similar containers, particularly those not having any supporting ribs at all.

These containers also were subjected to various load tests, to determine their dimensional stability. It is generally known that a container of this type normally functions as a column of fluid the height of the container. When the container is subjected toa load placed atop of it, the load exerts a force on the side wall of the container which is the greatest near its center. This force can be sufficient to cause theside wall of the container to rupture or buckle. The bumper rib l6 effectively divides in half the height of the column of fluid or, in other words, forms two columns of fluid, one atop the other, with the bottom of the upper column being disposed substantially at the position of the bumper rib 16 on the container. When a load is placed atop the container, the force of the upper column of fluid is substantially dissipated and absorbed by the bumper rib 16, so that the likelihood of the side wall of the container being ruptured is substantially reduced. In these tests, it is found that the containers l0 meet all the requirements established by the National Motor Freight Classification Board of the American Trucking Association, for using the containers in truck shipments.

It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and certain changes may be made in the above article. Accordingly, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Now that the invention has been described, what is claimed as new and desired to be secured by Letters Patent is:

1. In combination, a molded plastic open end container and a cover therefor, said open end container having a bottom wall and an upwardly extending side wall, a bead-like curl extending about the outer periphery of said side wall at the upper edge thereof, said cover comprising a center top wall structure and a perimetrical inverted U-shaped channel provided at the periphery thereof for receiving therein the upper edge of said open end container, said U-shaped channel having an inner and a concentric outer annular wall and a top section interconnecting said inner and outer annular walls, and interlocking means on the interior of said outer annular wall adapted to lockingly engage with said bead-like curl to removably secure said cover over the open end of said container, said open end container having an annular drip rib and a bumper formed on the side wall thereof, said annular drip rib being spaced immediately below the lower edge of said outer annular wall of said cover and extending angularly outwardly and downwardly from said containers side wall, the outermost diameter of said drip rib substantially corresponding to the outer diameter of said outer annular wall of said cover, said drip rib further being proportioned to add strength and dimensional stability to said open end container to restrict the tendency of said side wall at the open end thereof to collapse to thereby provide a more secure interlocking engagement and seal between said open end container and said cover, said bumper being spaced below said annular drip rib and having a top wall projecting outwardly and angularly downwardly from said side wall so as to provide a downwardly sloped top surface for causing an object to slide off said top surface and an end wall integrally formed therewith and extending substantially vertically downwardly, the outermost diameter of said bumper being greater than the diameter of said covers annular outer wall whereby said bumper functions to retain said containers in a spaced apart relationship when nested together in side-by-side abutting relationship, said bumper further being of a diameter and positioned with respect to said drip rib to engage the side wall of another one of said containers and thereby prevent the upper edge of one container from engaging beneath the lower edge of the annular outer wall of a cover on another one of said covers, whereby said covers are protected against accidental removal, said bumper further being proportioned to resist the tendency of said side wall to buckle when said container is dropped on its side and positioned to effectively reduce the column force exerted upon the side wall of said container to reduce the likelihood of the side wall buckling when the container is dropped on its bottom.

2. The combination of claim 1, further including a bail attachment for a bail for carrying said container integrally formed with said bumper, a plurality of spacer ribs disposed between said containers side wall and said end wall of said bumper in radial spaced relationship, said bumper and said spacer ribs providing additional rigidity and dimensional stability to minimize bail stress flexure of said containers side wall when said container is lifted or carried by a bail.

Claims (2)

1. In combination, a molded plastic open end container and a cover therefor, said open end container having a bottom wall and an upwardly extending side wall, a bead-like curl extending about the outer periphery of said side wall at the upper edge thereof, said cover comprising a center top wall structure and a perimetrical inverted U-shaped channel provided at the periphery thereof for receiving therein the upper edge of said open end container, said U-shaped channel having an inner and a concentric outer annular wall and a top section interconnecting said inner and outer annular walls, and interlocking means on the interior of said outer annular wall adapted to lockingly engage with said bead-like curl to removably secure said cover over the open end of said container, said open end container having an annular drip rib and a bumper formed on the side wall thereof, said annular drip rib being spaced immediately below the lower edge of said outer annular wall of said cover and extending angularly outwardly and downwardly from said container''s side wall, the outermost diameter of said drip rib substantially corresponding to the outer diameter of said outer annular wall of said cover, said drip rib further being proportioned to add strength and dimensional stability to said open end container to restrict the tendency of said side wall at the open end thereof to collapse to thereby provide a more secure interlocking engagement and seal between said open end container and said cover, said bumper being spaced below said annular drip rib and having a top wall projecting outwardly and angularly downwardly from said side wall so as to provide a downwardly sloped top surface for causing an object to slide off said top surface and an end wall integrally formed therewith and extending substantially vertically downwardly, the outermost diameter of said bumper being greater than the diameter of said cover''s annular outer wall whereby said bumper functions to retain said containers in a spaced apart relationship when nested together in side-by-side abutting relationship, said bumper further being of a diameter and positioned with respect to said drip rib to engage the side wall of another one of said containers and thereby prevent the upper edge of one container from engaging beneath the lower edge of the annular outer wall of a cover on another one of said covers, whereby said covers are protected against accidental removal, said bumper further being proportioned to resist the tendency of said side wall to buckle when said container is dropped on its side and positioned to effectively reduce the column force exerted upon the side wall of said container to reduce the likelihood of the side wall buckling when the container is dropped on its bottom.
2. The combination of claim 1, further including a bail attachment for a bail for carrying said container integrally formed with said bumper, a plurality of spacer ribs disposed between said container''s side wall and said end wall of said bumper in radial spaced relationship, said bumper and said spacer ribs providing additional rigidity and dimensional stability to minimize bail stress flexure of said container''s side wall when said container is lifted or carried by a bail.
US3804289A 1972-03-17 1972-03-17 Container and closure Expired - Lifetime US3804289A (en)

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US3804289A US3804289A (en) 1972-03-17 1972-03-17 Container and closure

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US3804289A US3804289A (en) 1972-03-17 1972-03-17 Container and closure
CA 164544 CA972696A (en) 1972-03-17 1973-02-26 Container and closure
GB1197773A GB1389163A (en) 1972-03-17 1973-03-13 Container and closure
NL7303748A NL7303748A (en) 1972-03-17 1973-03-16
FR7309508A FR2176796B1 (en) 1972-03-17 1973-03-16
DE19732313811 DE2313811A1 (en) 1972-03-17 1973-03-16 Plastic molded container

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US3804289A true US3804289A (en) 1974-04-16

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US (1) US3804289A (en)
CA (1) CA972696A (en)
DE (1) DE2313811A1 (en)
FR (1) FR2176796B1 (en)
GB (1) GB1389163A (en)
NL (1) NL7303748A (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977563A (en) * 1975-06-30 1976-08-31 Hercules Incorporated Container-lid interlock
US3990600A (en) * 1974-03-06 1976-11-09 Metal-Cladding, Inc. Tank construction
US4004710A (en) * 1975-12-31 1977-01-25 Mammoth Plastics, Inc. Container and closure therefor
US4014452A (en) * 1975-04-03 1977-03-29 United States Steel Corporation Plastic lids and pails
US4228122A (en) * 1978-03-08 1980-10-14 Mauser Kommandit-Gesellschaft Method of manufacturing roller chimes for closed head drums
US4228911A (en) * 1978-04-08 1980-10-21 Mauser-Kommandit Gesellschaft Roller chimes for closed head drums
US4245754A (en) * 1979-10-04 1981-01-20 Ellis Henry D Container including plastic molded receptacle and cover with buttress retainers
US4293073A (en) * 1976-01-16 1981-10-06 Growth International Industries Corp. Container with collar
US4357042A (en) * 1980-09-19 1982-11-02 Sears, Roebuck And Co. Bail
US4367821A (en) * 1980-09-12 1983-01-11 Hercules Incorporated Paint pail with depending skirt for label attachment
US4628827A (en) * 1984-04-30 1986-12-16 Litter R Mark Storage vault for valuables
US4676392A (en) * 1981-06-04 1987-06-30 Continental Group, Inc. Paint can having plural plug and handle securing arrangement
US4880131A (en) * 1987-11-13 1989-11-14 Van Dorn Company Ringless paint container
US4936482A (en) * 1987-11-13 1990-06-26 Van Dorn Company Ringless paint container
US5065888A (en) * 1987-11-13 1991-11-19 Van Dorn Company Improved ringless paint container with step down lid
US5240138A (en) * 1987-11-13 1993-08-31 Van Dorn Company Ringless paint container
US5373961A (en) * 1991-06-04 1994-12-20 21St Century Containers, Ltd. Transportable, self-supporting container
US5449087A (en) * 1993-09-08 1995-09-12 Sonoco Products Company Molded plastic drum
US5543107A (en) * 1994-09-27 1996-08-06 Sonoco Products Company Blow molding a closed plastic drum including two speed compression molding of an integral handling ring
US5607075A (en) * 1991-05-25 1997-03-04 Mauser-Werke Gmbh Large-capacity lidded drum
ES2108600A1 (en) * 1993-01-18 1997-12-16 Livrament Rufino Ilidio Do Toxic waste container.
US6021917A (en) * 1996-03-07 2000-02-08 Industrial Containers Ltd. Pail and plastic lid comprising non-linear, flexible ribs
JP2003081306A (en) * 2001-09-05 2003-03-19 Sanko Co Ltd Structure for sealing lid of container for transport
US6708824B2 (en) 2001-11-16 2004-03-23 Southwest Agri-Plastics, Inc. Stackable and nestable container
US6777019B1 (en) 1999-02-05 2004-08-17 Harvest Fuel, Inc. Method for preparing a livestock feed supplement block
US20070193302A1 (en) * 2005-03-31 2007-08-23 Paul Omdoll Chilling utensil and method of use
US20090294322A1 (en) * 2008-06-02 2009-12-03 Baltz Kyle L Pail with skirt and lid
JP2012218806A (en) * 2011-04-14 2012-11-12 Dic Plastics Inc Container with synthetic resin lid
USD739510S1 (en) * 2013-03-04 2015-09-22 Carl Jason Bullock Grease containment bucket

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648209C2 (en) * 1976-10-25 1981-04-16 Schneider Staedtereinigung Gmbh & Co Kg, 6346 Oberscheld, De
FR2409915A1 (en) * 1977-11-28 1979-06-22 Polythene Drums Lancashire Ltd Cylindrical container with lid and carrying handle - has rim on lid to allow stacking of containers for storage
NL8403615A (en) * 1984-11-28 1986-06-16 Curver Verpakkingen Nestable container with lid.
US4574974A (en) * 1984-12-14 1986-03-11 Holdt J W Von Container having a snap-on lid
DK152272B (en) * 1985-09-18 1988-02-15 Temponik A S A plastic container with a lid
US4928839A (en) * 1989-09-08 1990-05-29 The Dow Chemical Company Plastic drums for storing or transporting liquid and solid products
US5069736A (en) * 1990-08-20 1991-12-03 Castle Randall D Method of pail construction
WO1995023096A1 (en) * 1994-02-25 1995-08-31 Jokey Plastik Wipperfürth GmbH Injection-moulded single-edge plastic container with a snap-on lid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765831A (en) * 1952-12-23 1956-10-09 Earl S Tupper Food storer and dispenser
US3297194A (en) * 1965-02-23 1967-01-10 Dow Chemical Co Container
US3474928A (en) * 1968-03-28 1969-10-28 Robert S Hurtt Container having snap fastening means
US3515306A (en) * 1969-01-23 1970-06-02 William H Roper Container with cover and hidden cover release
US3516571A (en) * 1968-08-02 1970-06-23 William H Roper Container and cover therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765831A (en) * 1952-12-23 1956-10-09 Earl S Tupper Food storer and dispenser
US3297194A (en) * 1965-02-23 1967-01-10 Dow Chemical Co Container
US3474928A (en) * 1968-03-28 1969-10-28 Robert S Hurtt Container having snap fastening means
US3516571A (en) * 1968-08-02 1970-06-23 William H Roper Container and cover therefor
US3515306A (en) * 1969-01-23 1970-06-02 William H Roper Container with cover and hidden cover release

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990600A (en) * 1974-03-06 1976-11-09 Metal-Cladding, Inc. Tank construction
US4014452A (en) * 1975-04-03 1977-03-29 United States Steel Corporation Plastic lids and pails
US3977563A (en) * 1975-06-30 1976-08-31 Hercules Incorporated Container-lid interlock
US4004710A (en) * 1975-12-31 1977-01-25 Mammoth Plastics, Inc. Container and closure therefor
US4293073A (en) * 1976-01-16 1981-10-06 Growth International Industries Corp. Container with collar
US4228122A (en) * 1978-03-08 1980-10-14 Mauser Kommandit-Gesellschaft Method of manufacturing roller chimes for closed head drums
US4228911A (en) * 1978-04-08 1980-10-21 Mauser-Kommandit Gesellschaft Roller chimes for closed head drums
US4245754A (en) * 1979-10-04 1981-01-20 Ellis Henry D Container including plastic molded receptacle and cover with buttress retainers
US4367821A (en) * 1980-09-12 1983-01-11 Hercules Incorporated Paint pail with depending skirt for label attachment
US4357042A (en) * 1980-09-19 1982-11-02 Sears, Roebuck And Co. Bail
US4676392A (en) * 1981-06-04 1987-06-30 Continental Group, Inc. Paint can having plural plug and handle securing arrangement
US4628827A (en) * 1984-04-30 1986-12-16 Litter R Mark Storage vault for valuables
US4880131A (en) * 1987-11-13 1989-11-14 Van Dorn Company Ringless paint container
US4936482A (en) * 1987-11-13 1990-06-26 Van Dorn Company Ringless paint container
US5065888A (en) * 1987-11-13 1991-11-19 Van Dorn Company Improved ringless paint container with step down lid
US5240138A (en) * 1987-11-13 1993-08-31 Van Dorn Company Ringless paint container
US5607075A (en) * 1991-05-25 1997-03-04 Mauser-Werke Gmbh Large-capacity lidded drum
US5373961A (en) * 1991-06-04 1994-12-20 21St Century Containers, Ltd. Transportable, self-supporting container
ES2108600A1 (en) * 1993-01-18 1997-12-16 Livrament Rufino Ilidio Do Toxic waste container.
US5449087A (en) * 1993-09-08 1995-09-12 Sonoco Products Company Molded plastic drum
US6024245A (en) * 1994-09-27 2000-02-15 Greif Bros. Corp. Of Ohio, Inc. One-piece blow-molded closed plastic drum with handling ring and method of molding same
US5543107A (en) * 1994-09-27 1996-08-06 Sonoco Products Company Blow molding a closed plastic drum including two speed compression molding of an integral handling ring
US6026980A (en) * 1994-09-27 2000-02-22 Greif Bros. Corp. Of Ohio, Inc. One-piece blow-molded closed plastic drum with handling ring and method of molding same
US6021917A (en) * 1996-03-07 2000-02-08 Industrial Containers Ltd. Pail and plastic lid comprising non-linear, flexible ribs
US6777019B1 (en) 1999-02-05 2004-08-17 Harvest Fuel, Inc. Method for preparing a livestock feed supplement block
JP2003081306A (en) * 2001-09-05 2003-03-19 Sanko Co Ltd Structure for sealing lid of container for transport
US6708824B2 (en) 2001-11-16 2004-03-23 Southwest Agri-Plastics, Inc. Stackable and nestable container
US20070193302A1 (en) * 2005-03-31 2007-08-23 Paul Omdoll Chilling utensil and method of use
US20090294322A1 (en) * 2008-06-02 2009-12-03 Baltz Kyle L Pail with skirt and lid
JP2012218806A (en) * 2011-04-14 2012-11-12 Dic Plastics Inc Container with synthetic resin lid
USD739510S1 (en) * 2013-03-04 2015-09-22 Carl Jason Bullock Grease containment bucket

Also Published As

Publication number Publication date Type
GB1389163A (en) 1975-04-03 application
FR2176796B1 (en) 1979-01-26 grant
NL7303748A (en) 1973-09-19 application
FR2176796A1 (en) 1973-11-02 application
CA972696A (en) 1975-08-12 grant
DE2313811A1 (en) 1973-09-27 application
CA972696A1 (en) grant

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