US3485412A - Stackable plastic container - Google Patents

Stackable plastic container Download PDF

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Publication number
US3485412A
US3485412A US3485412DA US3485412A US 3485412 A US3485412 A US 3485412A US 3485412D A US3485412D A US 3485412DA US 3485412 A US3485412 A US 3485412A
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Prior art keywords
cup
stacking
rings
cups
upper
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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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Harry R Hawley
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James River-Norwalk Inc
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American Can Co
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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

Dec. 23, 1969 H. R. HAWLEY 3,485,412

STACKABLE PLASTIC CONTAINER Original Filed March 11, 1966 F l G. 4.

f l2 I3 INVENTOR HARRY R. HAWLEY vauw ATTORNEY 3,485,412 STACKABLE PLASTIC CONTAINER Harry R. Hawley, Lombard, Ill., assignor, by mesne assignments, to American Can Company, New York, N.Y., a corporation of New Jersey Continuation of application Ser. No. 533,594, Mar. 11, 1966. This application Aug. 27, 1968, Ser. No. 757,215

Int. Cl. B65d 21/02 US. Cl. 220--97 7 Claims ABSTRACT OF THE DISCLOSURE An integrally formed plastic cup wherein axially spaced upper and lower stacking rings in the cup side wall cooperate so that a plurality of cups may be readily stacked without jamming.

This application is a continuation of applieants application Ser. No. 533,594, filed Mar. 11, 1966, now abandoned.

When a large number of cups are nested together to form a relatively tall stack which will ultimately be dispensed one at a time, the Weight being supported by the stacking means of the bottom cup is relatively great and it is therefore important that the stacking means he sufficiently rigid and stiff to support this weight without causing jamming between adjacent cups. The thin walled plastic material presently in use in the drinking cup industry is relatively pliable and resilient, as has been brought out in Edwards Patent No. 3,139,213. I have found, however, that this resiliency and yieldability of the thin walled plastic cup does not actually assist in preventing jamming under the weight of a large number of cups but rather may even increase the jamming problem.

Objects of the invention It is therefore an object of this invention to provide stacking ring means which will produce substantially rigid, positive inter-engagement between adjacent pairs of stacked cups to prevent jamming of one cup within the other and permit easy removal of the cups, one at a time, from the stack.

More specifically it is an object to provide an open top drinking cup integrally formed from thin walled plastic material wherein the outwardly extending stacking ring of the inner cup is provided with a radially outwardly extending circumferential stitfening bead around the cup wall which is adapted to engage the inwardly extending shoulder of the next adjacent lower cup stacked therein.

It is another specific object of the invention to provide a cup of the type described wherein two axially spaced apart sets of stacking rings are respectively provided on upper and lower portions of the side wall of each cup in order to provide two circumferential supporting areas for each cup, one for supporting the lower portion of the cup and the other for supporting the upper portion of the cup.

These and other objects and advantages will more fully appear in the following description made in connection with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views, and in which:

FIG. 1 is an elevational view showing a pair of stacked cups with the outer cup being broken away,

FIG. 2 is a view similar to FIG. 1 showing a modified stacking arrangement,

FIG. 3 is an enlarged fragmentary view of a pair of stacked cups with the outer cup broken away and showing ICC the upper stacking ring means for both forms of the lnventlon,

FIG. 4 is an enlarged fragmentary view of a pair of stacked cups with the outer cup broken away and showing the bottom stacking ring means embodied in the form of the invention illustrated in FIG. 2, and

FIG. 5 is a bottom plan view of one of the cups shown in FIG. 1.

In FIG. 1 one embodiment of the invention is illustrated wherein a single set of spaced stacking rings is provided in the upper portion of each cup. A second embodiment of the invention is illustrated in FIG. 2. In both forms of the invention a tapered cup of thin walled thermo forming plastic material such as high impact polystyrene, rigid polyvinyl chloride, linear polyethylene is illustrated.

In the first embodiment of the invention the tapered cup has a side wall W with a curled upper lip L surrounding the open top thereof. A cup bottom B is provided which in the form shown has a central. recess to insure stability when placed on a table top and also to provide additional stiifness for the bottom panel.

A set of circumferential stacking rings 9 and 10 is formed in the upper portion of the side wall W. At least one of said rings must be continuous around the entire circumference of the cup. In the cup illustrated, the lower ring 10 is provided with an outwardly extending bead or step 10a. The spaced rings 9 and 10 are connected by an intermediate support section 11 which is cylindrical or may be tapered very slightly outwardly toward the top. In a plurality of stacked cups this intermediate section 11 serves to transfer the weight supported by the upper ring 9 to the lower ring 10 except for the top and bottom cups of the stack. The bead or step 10a provides circumferential stiffness for each of the rings 10 and said head also eliminates the necessity for a reverse taper in the intermediate support section 11, in order to provide the radial offset required for stacking engagement between the lower ring 10 and the upper ring 9 of adjacent cups.

In the second embodiment of the invention an upper set of stacking rings 9 and 10 is provided in the upper portion of the wall W of the cup C These are identical to the rings 9 and 10 in the first embodiment described above. In addition to the upper rings 9 and 10, a lower set of stacking rings 12 and 13 is also provided. The lower ring 13 is provided with a circumferential bead or step 13a which engages the inner portion of the upper ring 12 as best shown in FIG. 2, when adjacent cups are stacked together. The two sets of stacking rings provided in the second embodiment of the invention cooperate to support the weight of the cups stacked thereon and this materially reduces the weight carried by each set and substantially eliminates any problems of jamming.

It will be seen that both forms of the invention provide a novel and highly eflicient stacking structure without requiring the reverse taper previously used by many stacking cup designs and which provides substantially increased stiffness to each set of stacking rings by means of the outwardly projecting beads or steps.

I claim:

1. A thin walled plastic cup, comprising:

a tapered body having an integral bottom at the smaller end of said body and an annular brim surrounding the open opposite end;

axially spaced upper and lower peripheral stacking rings in the side wall of said body;

an intermediate section in said side wall separating said upper and lower rings;

said lower stacking ring being provided with an outwardly extending bead having a diameter greater than the diameter of said intermediate section; and

said upper stacking ring being a substantially horizontal shoulder having an outside diameter slightly greater than the outside diameter of said lower stacking ring and adapted to support the bottom surface of a lower stacking ring of a nested second cup.

2. The cup of claim 1 wherein said integral bottom has a flat bottom central recess therein to insure stability of said cup when placed on a horizontal surface.

3. The cup of claim 1 wherein said intermediate section is cylindrical.

4. The cup of claim 1 wherein said intermediate section tapers slightly outwardly toward the open cu end.

5. The cup of claim 1 wherein said stacking rings, separated by said intermediate section, are in the upper portion of said side wall.

6. The cup of claim 5 wherein a second pair of stacking rings, separated by an intermediate section, are in the lower portion of said side wall, so that there is a minim-um of frictional engagement between the tapered UNITED STATES PATENTS 3,223,305 12/1965 Edwards. 3,288,340 11/1966 Shapiro.

3,327,895 6/1967 Mueller.

3,347,411 10/1967 Kalata.

GEORGE E. LOWRANCE, Primary Examiner US. Cl. X.R.

US3485412A 1968-08-27 1968-08-27 Stackable plastic container Expired - Lifetime US3485412A (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612346A (en) * 1968-03-08 1971-10-12 Jack M Schneider Plastics containers
DE2312116A1 (en) * 1972-03-16 1973-09-27 Itw Ltd Cups for acceptance of getraenkeansaetzen
DE2404668A1 (en) * 1973-02-07 1974-08-15 Itw Ltd Seamless thin-walled capacities
US3851781A (en) * 1973-04-19 1974-12-03 L Marco Nurser bottle construction
JPS49144566U (en) * 1972-05-26 1974-12-13
US3971471A (en) * 1973-04-16 1976-07-27 Owens-Illinois, Inc. Close-nesting, light-weight, one-piece drinking cup and apparatus for the manufacture thereof
US3978232A (en) * 1970-12-30 1976-08-31 Edward Dodsworth Thin walled containers for pressurized liquids
US4003490A (en) * 1974-01-09 1977-01-18 Societe: Toscara Anstalt Process and apparatus for the manufacture of white cheese or yoghurt
DE2742657A1 (en) * 1977-09-22 1979-04-05 Henkel Kgaa Refill pack for an automatic toilet cleaner
US5617972A (en) * 1994-03-25 1997-04-08 Playtex Products Inc. Nurser liner
US20060118608A1 (en) * 2004-11-22 2006-06-08 Michael Hoerauf Maschinenfabrik Gmbh U. Co. Kg Double-walled paperboard cup
US20070020362A1 (en) * 2000-07-12 2007-01-25 D Amelio Vince Structures and processes for packaging perishable and other products
US20080087714A1 (en) * 2004-05-18 2008-04-17 D Amato Gianfranco Container
US20090071968A1 (en) * 2007-09-11 2009-03-19 O'brien Diane Container
US20100326870A1 (en) * 2006-12-05 2010-12-30 Seda S.P.A. Package
USD639606S1 (en) * 2008-03-14 2011-06-14 Solo Cup Operating Corporation Cup
US20110174656A1 (en) * 2005-11-14 2011-07-21 Seda S.P.A. Device for producing a stacking projection and container with same
US20110281704A1 (en) * 2008-01-21 2011-11-17 Ptm Packaging Tools Machinery Pte. Ltd. Cup made of a paper material
US8146796B2 (en) 2001-01-30 2012-04-03 Seda S.P.A. Cardboard container for drinks and process therefor
US8146797B2 (en) 2005-11-11 2012-04-03 Seda S.P.A. Insulated cup
US8794294B2 (en) 2005-04-15 2014-08-05 Seda S.P.A. Insulated container, method of fabricating same and apparatus for fabricating
WO2016049049A1 (en) * 2014-09-23 2016-03-31 Dart Container Corporation Insulated container and methods of making and assembling
US9340345B2 (en) 2013-03-14 2016-05-17 Berry Plastics Corporation Stack shoulder for insulated container
US9682805B2 (en) 2012-10-26 2017-06-20 Berry Plastics Corporation Closure for container
US9783359B2 (en) 2005-09-08 2017-10-10 Seda S.P.A. Double-walled cup
USD815902S1 (en) * 2016-06-06 2018-04-24 Pacific Market International, Llc Beverage container
USD817703S1 (en) * 2016-06-06 2018-05-15 Pacific Market International, Llc Beverage container lid
US9994379B2 (en) 2015-04-30 2018-06-12 Berry Plastics Corporation Container closure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223305A (en) * 1962-12-14 1965-12-14 Illinois Tool Works Plastic cup with fins
US3288340A (en) * 1964-05-25 1966-11-29 Sweetheart Plastics Nestable container
US3327895A (en) * 1965-01-05 1967-06-27 Seymour C Graham Nestable plastic container
US3347411A (en) * 1965-03-24 1967-10-17 Daniel R Kalata Nestable containers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223305A (en) * 1962-12-14 1965-12-14 Illinois Tool Works Plastic cup with fins
US3288340A (en) * 1964-05-25 1966-11-29 Sweetheart Plastics Nestable container
US3327895A (en) * 1965-01-05 1967-06-27 Seymour C Graham Nestable plastic container
US3347411A (en) * 1965-03-24 1967-10-17 Daniel R Kalata Nestable containers

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612346A (en) * 1968-03-08 1971-10-12 Jack M Schneider Plastics containers
US3978232A (en) * 1970-12-30 1976-08-31 Edward Dodsworth Thin walled containers for pressurized liquids
DE2312116A1 (en) * 1972-03-16 1973-09-27 Itw Ltd Cups for acceptance of getraenkeansaetzen
JPS5318864Y2 (en) * 1972-05-26 1978-05-19
US4052037A (en) * 1972-05-26 1977-10-04 Mars Limited Drinking cup structured to enhance beverage blending
JPS49144566U (en) * 1972-05-26 1974-12-13
DE2404668A1 (en) * 1973-02-07 1974-08-15 Itw Ltd Seamless thin-walled capacities
US3927766A (en) * 1973-02-07 1975-12-23 Illinois Tool Works Cups for holding ingredients for drinks
US3971471A (en) * 1973-04-16 1976-07-27 Owens-Illinois, Inc. Close-nesting, light-weight, one-piece drinking cup and apparatus for the manufacture thereof
US3851781A (en) * 1973-04-19 1974-12-03 L Marco Nurser bottle construction
US4003490A (en) * 1974-01-09 1977-01-18 Societe: Toscara Anstalt Process and apparatus for the manufacture of white cheese or yoghurt
DE2742657A1 (en) * 1977-09-22 1979-04-05 Henkel Kgaa Refill pack for an automatic toilet cleaner
US5617972A (en) * 1994-03-25 1997-04-08 Playtex Products Inc. Nurser liner
EP0825959A1 (en) * 1995-03-24 1998-03-04 Playtex Products, Inc. Nurser liner
EP0825959A4 (en) * 1995-03-24 1999-01-27 Playtex Products Inc Nurser liner
US20070020362A1 (en) * 2000-07-12 2007-01-25 D Amelio Vince Structures and processes for packaging perishable and other products
US8146796B2 (en) 2001-01-30 2012-04-03 Seda S.P.A. Cardboard container for drinks and process therefor
US20080087714A1 (en) * 2004-05-18 2008-04-17 D Amato Gianfranco Container
US20060118608A1 (en) * 2004-11-22 2006-06-08 Michael Hoerauf Maschinenfabrik Gmbh U. Co. Kg Double-walled paperboard cup
US7481356B2 (en) * 2004-11-22 2009-01-27 Ptm Packaging Tools Machinery Pte Ltd. Double-walled paperboard cup
US7905821B2 (en) 2004-11-22 2011-03-15 Ptm Packaging Tools Machinery Pte Ltd. Double-walled paperboard cup
US8932428B2 (en) 2005-04-15 2015-01-13 Seda S.P.A. Insulated container, method of fabricating same and apparatus for fabricating
US8794294B2 (en) 2005-04-15 2014-08-05 Seda S.P.A. Insulated container, method of fabricating same and apparatus for fabricating
US9783359B2 (en) 2005-09-08 2017-10-10 Seda S.P.A. Double-walled cup
US8146797B2 (en) 2005-11-11 2012-04-03 Seda S.P.A. Insulated cup
US20110174656A1 (en) * 2005-11-14 2011-07-21 Seda S.P.A. Device for producing a stacking projection and container with same
US8393886B2 (en) 2005-11-14 2013-03-12 Seda S.P.A. Device for producing a stacking projection and container with same
US20110000809A1 (en) * 2006-12-05 2011-01-06 Seda S.P.A. Package
US8807339B2 (en) 2006-12-05 2014-08-19 Seda Spa Package
US8240476B2 (en) 2006-12-05 2012-08-14 Seda S.P.A. Package
US8267250B2 (en) 2006-12-05 2012-09-18 Seda S.P.A. Package
US20100326870A1 (en) * 2006-12-05 2010-12-30 Seda S.P.A. Package
US8490792B2 (en) 2006-12-05 2013-07-23 Seda S.P.A. Package
US8191708B2 (en) 2006-12-05 2012-06-05 Seda S.P.A. Package
US20090071968A1 (en) * 2007-09-11 2009-03-19 O'brien Diane Container
US20110281704A1 (en) * 2008-01-21 2011-11-17 Ptm Packaging Tools Machinery Pte. Ltd. Cup made of a paper material
US9238524B2 (en) * 2008-01-21 2016-01-19 Ptm Packaging Tools Machinery Pte. Ltd. Cup made of a paper material
US9260220B2 (en) 2008-01-21 2016-02-16 Ptm Packaging Tools Machinery Pte. Ltd. Cup made of a paper material
USD639606S1 (en) * 2008-03-14 2011-06-14 Solo Cup Operating Corporation Cup
US9682805B2 (en) 2012-10-26 2017-06-20 Berry Plastics Corporation Closure for container
US9340345B2 (en) 2013-03-14 2016-05-17 Berry Plastics Corporation Stack shoulder for insulated container
WO2016049049A1 (en) * 2014-09-23 2016-03-31 Dart Container Corporation Insulated container and methods of making and assembling
US10059037B2 (en) 2014-09-23 2018-08-28 Dart Container Corporation Insulated container and methods of making and assembling
US9994379B2 (en) 2015-04-30 2018-06-12 Berry Plastics Corporation Container closure
USD815902S1 (en) * 2016-06-06 2018-04-24 Pacific Market International, Llc Beverage container
USD817703S1 (en) * 2016-06-06 2018-05-15 Pacific Market International, Llc Beverage container lid

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Legal Events

Date Code Title Description
AS Assignment

Owner name: JAMES RIVER-DIXIE/NORTHERN, INC., A CORP. OF VA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN CAN COMPANY, A CORP. OF NJ;REEL/FRAME:004097/0720

Effective date: 19820924

AS Assignment

Owner name: JAMES RIVER-NORWALK, INC., RIVERPARK, P.O. BOX 600

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JAMES RIVER-DIXIE/NORTHERN, INC.;REEL/FRAME:004332/0546

Effective date: 19840905