US3131845A - Containers - Google Patents

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Publication number
US3131845A
US3131845A US20189662A US3131845A US 3131845 A US3131845 A US 3131845A US 20189662 A US20189662 A US 20189662A US 3131845 A US3131845 A US 3131845A
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US
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Grant
Patent type
Prior art keywords
protuberance
containers
container
side
wall
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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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Inventor
Sherlock John Gerrard
Draper Harold John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Can Company Inc
Original Assignee
Continental Can Company Inc
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Publication date
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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
    • B65D1/22Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/265Drinking cups

Description

y 5, 1964 J. G. SHERLOCK ETAL 3,131,845

CONTAINERS Filed June 12, 1962 \NvENToRs JOHN G SHERLOCK HAROLD J. DRAPER ATTORNEYS United States Patent Ofi ice 3,131,845 Patented May 5, 1964 3,131,845 CONTAFNERS John Gerrard Sherlock, Feltham, and Harold John Draper, Ruislip, England, assignors to Continental Can Company, Inc., New York, N.Y., a corporation of New York Filed June 12, 1962, Ser. No. 201,896 Claims priority, application Great Britain June 16, 1961 4 Claims. (Cl. 229-) The present invention relates to containers of the kind having an end wall (referred to herein for convenience as the bottom) and side walls or a side wall so shaped as to allow the containers to be nested or stacked one within another for transit or storage. The side walls are normally tapered at a shallow taper angle. Such containers for convenience will be referred to in the present specification as containers of the stated kind.

The present invention consists of an open mouthed container of the stated kind including at least one protuberance formed in the bottom of the container engageable with the bottom of a similar container nested within it to prevent the side walls of the containers being jammed together. Preferably such a protuberance projects inwards into the container. The effective height of the protuberance must be correctly related to the thickness and taper angle of the walls, to prevent jamming.

The invention has particular application to containers formed by such processes as drawing, or vacuum or pressure forming from sheet synthetic plastic material such as polystyrene. Such containers are commonly used for drinking cups of the throw away expendable type or are provided with lids or closure members for use as containers for drinks, ice cream and so on. Before use the containers are almost invariably arranged for purposes of economy of storage space in a stack with one nested inside another. When so arranged it is of particular importance that two or more containers do not get jammed together as such jamming results, for example, in delays necessary for separating the jammed containers, or in cases where such containers are filled by automatic operating machines or are dispensed by beverage vending machines, in damage to the machine or in failure of the machine to operate.

By providing a protuberance or protuberances in the bottom of a container according to the present invention, jamming of the containers is unlikely and so the difiiculties associated with such jamming are obviated or minimised.

The formation of such a protuberance projecting from one side of the bottom of a thin-walled container of necessity results in a corresponding depression or cavity being formed in the other side of the bottom and it should therefore be appreciated that in order to minimise the risk of a protuberance on one container entering the cavity formed by a protuberance of a second container nested within the first to cause jamming of the two containers, the protuberances should be so shaped that either a protuberance cannot enter the cavity formed by another or, if a part of a protuberance can enter the cavity of another, then no jamming can take place between the cavity walls and the protuberance positioned within the cavity.

In one preferred form of the invention the protuberance is of a cylindrical form with its side or sides extending parallel with the axis of the container and thus entry of a protuberance of one container into the cavity formed by a protuberance in another is prevented by the thickness of the material forming the bottom. Such a cylindrical protuberance, in cross-section, may be in the form of a polygon but preferably the protuberance has a circular cross-section.

The provision of parallel sides in the protuberances is an advantage in containers formed in a mould in that such a provision permits a container to be readily removed from the mould after its formation. A protuberance may, of course, be such as to have sides which diverge on leaving the bottom of the container so that the innermost parts of the protuberance will be unable to enter the mouth of a cavity formed by another but such containers can only be removed from a mould in which they are formed without damage if, for example, the material from which the containers are made is such as to allow this (for example, by reason of its resiliency) or the mould is so designed that the boss or plug within the mould and about which the protuberance is formed can be collapsed and drawn out of the cavity after the container has been formed and prior to the removal of the container from the mould.

The invention may be performed in various ways and some specific embodiments will now be described by way of example with reference to the accompanying drawings, in which:

FIGURE 1 is a sectional side elevation through an open-mouthed plastic cup; and

FIGURE 2 is a sectional view of a modified form of cup, showing two such cups nested one in the other.

In the cup illustrated in FIGURE 1 the side wall 10 is tapered at a small angle and a number of such cups can thus be nested or stacked, one within another, for transit or storage, or used in automatic dispensing or filling machines. The side wall is formed with a number of shallow parallel circumferential ribs or grooves 9 which act primarily as stifiening members. If the base of such a cup is made flat, the cups would tend to jam when nested. In this example of the invention, the base of the cup is formed with a shallow depression 11 which results in an annular downwardly projecting rim 12 and acts to stiffen the base. It will be noted that since the depression is shallow and the walls of the depression are substantially horizontal the depression will not in itself support one cup spaced above a cup in which it is nested. In the centre of the base there is formed a cylindrical protuberance 13 having parallel vertical side walls 14. This protuberance will support one cup with its base appreciably above the base of a lower cup so as to prevent jamming. The effective vertical displacement will be determined by the height of the vertical walls 14 and not by the total height of the crown of the protuberance above the lower part of the base.

In the form of cup illustrated in FIGURE 2, the side wall 15 is tapered at a small angle and in this case the base is flat and is provided with a central circular protuberance 16 having a side wall 17 which flares upwards and outwards at a small angle. The angle is shown exaggerated in the drawings to illustrate its effect in preventing the protuberance in a lower cup from entering into the corresponding depression in the base of a cup above it. In practice since the cup is moulded, there is a practical limit to the angle of flare which will be ap proximately 1 or 1 /2 In the examples illustrated, a single central protuberance is formed in each cup, but it will be understood that two or more protuberances may be formed in the end wall.

What we claim as our invention and desire to secure by Letters Patent is:

1. A pair of identical nested open-mouthed thin-walled containers each of integral formation from a plastic material, and each having an end wall and diverging side walls with an axially inwardly directed generally cylindrical protuberance in the end wall, an upper shoulder at the inner end of the protuberance, and a lower shoulder where the protuberance is united with the end Wall, the lower shoulder of the nesting container resting on the upper shoulder of the container in which it is nested, and radial clearance being maintained between the side walls of the two'containers.

2. A pair of containers as claimed in claim 1 including a flat annular portion of the end wall surrounding the protuberance and uniting it with the side walls.

3. An open-mouthed thin-Walled container of integral formation from a plastic material having an end Wall and shoulder where the protuberance is united with the end 1 Wall, the upper shoulder extending radially from the axis of the cup to a greater distance than the lower shoulder.

4. An open-mouthed thin-walled container as claimed in claim 3 including a flat annular portion of the end wall surrounding the protuberance and serving to unite the protuberance with the side walls.

References Cited in the file of this patent UNITED STATES PATENTS Harrison May-2, 1 961 2,988,258 Witzke June 13, 1961 FOREIGN PATENTS 530,975 Belgium Oct. 31, 1954

Claims (1)

1. A PAIR OF IDENTICAL NESTED OPEN-MOUTHED THIN-WALLED CONTAINERS EACH OF INTEGRAL FORMATION FROM A PLASTIC MATERIAL, AND EACH HAVING AN END WALL AND DIVERGING SIDE WALLS WITH AN AXIALLY INWARDLY DIRECTED GENERALLY CYLINDRICAL PROTUBERANCE IN THE END WALL, AN UPPER SHOULDER AT THE INNER END OF THE PROTUBERANCE, AND A LOWER SHOULDER WHERE THE PROTUBERANCE IS UNITED WITH THE END WALL, THE LOWER SHOULDER OF THE NESTING CONTAINER RESTING ON THE UPPER SHOULDER OF THE CONTAINER IN WHICH IT IS NESTED, AND RADIAL CLEARANCE BEING MAINTAINED BETWEEN THE SIDE WALLS OF THE TWO CONTAINERS.
US3131845A 1961-06-16 1962-06-12 Containers Expired - Lifetime US3131845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2186761A GB1032041A (en) 1961-06-16 1961-06-16 Improvements in or relating to containers

Publications (1)

Publication Number Publication Date
US3131845A true US3131845A (en) 1964-05-05

Family

ID=10170153

Family Applications (1)

Application Number Title Priority Date Filing Date
US3131845A Expired - Lifetime US3131845A (en) 1961-06-16 1962-06-12 Containers

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US (1) US3131845A (en)
DE (1) DE1178352B (en)
GB (1) GB1032041A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232512A (en) * 1964-05-08 1966-02-01 Illinois Tool Works Stackable insert container with axially spaced engaging surfaces
US3237834A (en) * 1963-07-29 1966-03-01 Sweetheart Plastics Laminated container and method of making the same
US3315018A (en) * 1963-11-26 1967-04-18 Sweetheart Plastics Method of making foamed plastic containers
US3442420A (en) * 1967-02-08 1969-05-06 Illinois Tool Works Nestable container with bottom stacking
US3471055A (en) * 1967-02-08 1969-10-07 Illinois Tool Works Nestable container with bottom stacking
US3730385A (en) * 1971-02-16 1973-05-01 Roslin Corp Nestable container
US4273241A (en) * 1979-07-05 1981-06-16 General Electric Company Reflector unit for photoflash array
US6554154B1 (en) * 2000-02-11 2003-04-29 Solo Cup Company Thermoformed container having improved strength to weight ratio in sidewall
US20050061821A1 (en) * 2003-10-01 2005-03-24 Smith Stephen Alan Ergonomic disposable cup having improved structural integrity
USD608591S1 (en) 2008-06-18 2010-01-26 Solo Cup Operating Corporation Cup
USD612201S1 (en) 2009-05-27 2010-03-23 Solo Cup Operating Corporation Cup
USD613554S1 (en) 2008-03-14 2010-04-13 Solo Cup Operating Corporation Cup
USD649397S1 (en) 2010-04-30 2011-11-29 Pactiv Corporation Sidewall for a cup
USD649396S1 (en) 2010-04-30 2011-11-29 Pactiv Corporation Sidewall for a cup
EP2778089A1 (en) * 2013-03-14 2014-09-17 Cup Concept Mehrwegsysteme GmbH Stackable cup
USD758802S1 (en) * 2014-07-04 2016-06-14 Pi-Design Ag Mug
USD764637S1 (en) 2014-12-17 2016-08-23 Zip Valve Boxes LLC Equipment housing
USD771340S1 (en) * 2015-05-28 2016-11-08 Naber Beheer B.V. Bucket
US9518369B2 (en) 2013-12-19 2016-12-13 Zip Valve Boxes LLC Equipment housing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261051B (en) * 1966-04-09 1968-02-08 Alfons W Thiel Thin-walled, open at the top and stackable capacities, such as drinking cups, cup and use. like.
GB2501455B (en) * 2011-09-22 2017-01-11 Kobusch Uk Ltd Improved thermoforming method and thermoformed containers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530975A (en) * 1953-08-10
US2982440A (en) * 1959-02-05 1961-05-02 Crown Machine And Tool Company Plastic container
US2988258A (en) * 1957-12-17 1961-06-13 Helen G Witzke Cup

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2088181A (en) * 1936-01-29 1937-07-27 George W Swift Jr Inc Cup
FR1044009A (en) * 1951-10-19 1953-11-13 Nestable container of synthetic plastics material
US2816697A (en) * 1954-07-20 1957-12-17 Lily Tulip Cup Corp Paper containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530975A (en) * 1953-08-10
US2988258A (en) * 1957-12-17 1961-06-13 Helen G Witzke Cup
US2982440A (en) * 1959-02-05 1961-05-02 Crown Machine And Tool Company Plastic container

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237834A (en) * 1963-07-29 1966-03-01 Sweetheart Plastics Laminated container and method of making the same
US3315018A (en) * 1963-11-26 1967-04-18 Sweetheart Plastics Method of making foamed plastic containers
US3232512A (en) * 1964-05-08 1966-02-01 Illinois Tool Works Stackable insert container with axially spaced engaging surfaces
US3442420A (en) * 1967-02-08 1969-05-06 Illinois Tool Works Nestable container with bottom stacking
US3471055A (en) * 1967-02-08 1969-10-07 Illinois Tool Works Nestable container with bottom stacking
US3730385A (en) * 1971-02-16 1973-05-01 Roslin Corp Nestable container
US4273241A (en) * 1979-07-05 1981-06-16 General Electric Company Reflector unit for photoflash array
US6554154B1 (en) * 2000-02-11 2003-04-29 Solo Cup Company Thermoformed container having improved strength to weight ratio in sidewall
US20050061821A1 (en) * 2003-10-01 2005-03-24 Smith Stephen Alan Ergonomic disposable cup having improved structural integrity
US20050173287A1 (en) * 2003-10-01 2005-08-11 Smith Stephen A. Ergonomic disposable cup having improved structural integrity
US7546932B2 (en) 2003-10-01 2009-06-16 Solo Cup Operating Corporation Ergonomic disposable cup having improved structural integrity
US8152018B2 (en) 2003-10-01 2012-04-10 Solo Cup Operating Corporation Ergonomic disposable cup having improved structural integrity
USD639606S1 (en) 2008-03-14 2011-06-14 Solo Cup Operating Corporation Cup
USD624788S1 (en) 2008-03-14 2010-10-05 Solo Cup Operating Corporation Cup
USD613554S1 (en) 2008-03-14 2010-04-13 Solo Cup Operating Corporation Cup
USD651452S1 (en) 2008-06-18 2012-01-03 Solo Cup Operating Corporation Cup
USD622105S1 (en) 2008-06-18 2010-08-24 Solo Cup Operating Corporating Cup
USD627596S1 (en) 2008-06-18 2010-11-23 Solo Cup Operating Corporation Cup
USD608591S1 (en) 2008-06-18 2010-01-26 Solo Cup Operating Corporation Cup
USD612202S1 (en) 2009-05-27 2010-03-23 Solo Cup Operating Corporation Cup
USD612201S1 (en) 2009-05-27 2010-03-23 Solo Cup Operating Corporation Cup
USD615356S1 (en) 2009-05-27 2010-05-11 Solo Cup Operating Corporation Cup
USD649396S1 (en) 2010-04-30 2011-11-29 Pactiv Corporation Sidewall for a cup
USD649397S1 (en) 2010-04-30 2011-11-29 Pactiv Corporation Sidewall for a cup
EP2778089A1 (en) * 2013-03-14 2014-09-17 Cup Concept Mehrwegsysteme GmbH Stackable cup
US9518369B2 (en) 2013-12-19 2016-12-13 Zip Valve Boxes LLC Equipment housing
USD758802S1 (en) * 2014-07-04 2016-06-14 Pi-Design Ag Mug
USD764637S1 (en) 2014-12-17 2016-08-23 Zip Valve Boxes LLC Equipment housing
USD771340S1 (en) * 2015-05-28 2016-11-08 Naber Beheer B.V. Bucket

Also Published As

Publication number Publication date Type
GB1032041A (en) 1966-06-08 application
DE1178352B (en) 1964-09-17 application

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