WO1988008814A1 - Hollow, stackable, molded product with rigidifying skirt-shaped flange - Google Patents
Hollow, stackable, molded product with rigidifying skirt-shaped flange Download PDFInfo
- Publication number
- WO1988008814A1 WO1988008814A1 PCT/US1988/001625 US8801625W WO8808814A1 WO 1988008814 A1 WO1988008814 A1 WO 1988008814A1 US 8801625 W US8801625 W US 8801625W WO 8808814 A1 WO8808814 A1 WO 8808814A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- perimetric
- ledge
- product
- side wall
- skirt
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D1/00—Containers 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
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/265—Drinking cups
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Stackable Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
A hollow, stackable, plastic product having a given stacking height (h), includes a perimetric ledge (22) extending generally in a lateral direction; an upper perimetric side wall (14) extending generally upward from the ledge (22) for a height exceeding the stacking height of the product; a lower perimetric side wall (16) spaced from the first perimetric side wall (14) by the ledge (22) and extending generally downward from the ledge (22) for a height exceeding the stacking height of the product; and a rigidifying skirt-shaped perimetric flange (26, 32) extending generally in an upward or downward direction from the perimetric ledge (22). The product has a series of ledges (22, 24) joining adjacent side walls (14, 16, 18) and a plurality of skirt-shaped flanges (26, 28) respectively extending downward from the plurality of ledges (22, 24) to thereby also provide a series of insulating barriers along the exterior of the product.
Description
HOLLOW, STACKABLE, MOLDED PRODUCT WITH RIGIDIFYING SKIRT-SHAPED FLANGE
BACKGROUND OF THE INVENTION The present invention generally pertains to hollow, stackable, molded plastic products and is particularly directed to enhancing the rigidity of such products.
Hollow, stackable, molded plastic products, such as beverage cups, typicallγ have tapered perimetric side walls. Typically, the perimetric side walls are circumferential. The side walls are tapered so that the products may be stacked by inserting one product into another. Each product has a given stacking height defined by the height that a product when inserted into a like product extends beyond the height of the like product. The stacking height for a given product is determined by physical features of the product that cause the inserted product to contact the like receiving product to limit the dimension of product insertion.
Typically, the inserted end of the inserted product contacts an interior ridge or some other interior protrusion near the base of the like receiving product to limit the dimension of product insertion; and the stacking height is such in relation to the tapering of the side walls and the height of the product as to prevent the side walls of the inserted product from so closely contacting the side walls of the like receiving product as to tend to bind the products together when they are stacked.
As injection molding techniques have evolved, hollow, stackable, injection-molded plastic products have been made with thinner side walls in order to conserve plastic and thereby decrease the material cost of the product. As the side walls have become thinner it has become desirable to enhance the rigidity of the product. Rigidity has been enhanced by providing a series of steps in the perimetric tapered side walls. Typicallγ, each step is defined by a combination of a ledge; a first perimetric side wall generally extending from the ledge in a first direction; and a second perimetric side wall spaced from the first perimetric side wall by the ledge and extending from the ledge in a direction generally opposite from the first direction, wherein at the ledge the cross-sectional area of the first perimetric side wall is greater than the cross-sectional area of the second perimetric side wall.
In one such product configured as a generally cylindrical container having slightly tapered circumferential side walls, a base and an open top, the rigidity of the top portion of the product closer to the widest end of the product than the stacking height of the product is enhanced by the combination of a circumferential ledge joining the upper and lower circumferential side walls near the top of the product and a skirt-shaped circumferential flange extending from the ledge. The skirt-shaped flange is outside of and spaced from the lower circumferential side wall, and extends from the ledge in a direction away from the top of the product.
SUMMA Y OF THE INVENTION
The present invention provides a hollow, stackable, injection-molded plastic product, in which the rigidity of the side walls is enhanced bγ providing one or more perimetric flanges in a region of the product removed from the widest end of the product bγ more than the stacking height of the product. The product of the present invention has a given stacking height and includes a perimetric ledge; a first perimetric side wall extending from the ledge in a first general direction for a distance exceeding the stacking height of the product; a second perimetric side wall spaced from the first perimetric side wall bγ the ledge and extending from the ledge in a direction generally opposite from the first direction, wherein at the ledge the cross-sectional area defined by the first perimetric side wall is greater than the cross-sectional area defined bγ the second perimetric side wall; and a skirt-shaped perimetric flange extending from the perimetric ledge. Thus the rigidity of the side walls of the product is further enhanced in a region removed from the widest end of the product by more than the stacking height of the product, and thereby inserted into a receiving like product when stacked, without having to increase the stacking height of the product beyond what the stacking height would be were it not for the perimetric flange.
In one aspect of the present invention, the skirt-shaped flange is outside of and spaced from the second perimetric side wall and extends from the ledge in a direction generally opposite from the first direction. Such flange also provides
the feature of interposing an effective thermal insulating barrier between the fingers of a person holding the product and a substance within the product. The product preferably has a series of ledges joining adjacent side walls and a plurality of skirt-shaped flanges respectively extending from the plurality of ledges to provide a series of such insulating barriers along the exterior of the product. This feature is particularly important for protecting the fingers of users of thin-walled plastic cups containing hot beverages.
The rigidity of the product may be still further enhanced by a second skirt-shaped flange inside of and spaced from the first perimetric side wall and generally extending from the ledge in the first direction.
Additional features of the present invention are described with reference to the description of the preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWING
Figure 1 illustrates two stacked products according to one preferred embodiment of the present invention.
Figure 2 illustrates two stacked products according to an alternative preferred embodiment of the present invention.
-5-
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to Figure 1, a first hollow, stackable, injection-molded plastic product 10 is inserted within a like product 12. The product 10 is shaped as a beverage cup having a series of first, second and third perimetric side walls 14, 16, 18 and a base 20. The perimetric side walls 14, 16, 18 are circumferential and tapered. The product includes a plurality of steps for enhancing the rigidity of the product.
A first perimetric (circumferential) ledge 22 joins the second perimetric side wall 16 with the first perimetric side wall 14; and a second circumferential ledge 24 joins the third perimetric side wall 18 with the second perimetric side wall 16 in order to define the rigidifγing steps of the product.
The first perimetric side wall 14 generally extends from the first ledge 22 in a first direction.
The second perimetric side wall 16 is spaced from the first perimetric side wall 14 by the first ledge 22 and extends from the first ledge 22 in a direction generally opposite from the first direction. At the first ledge 22, the cross- sectional area defined by the first perimetric side wall 14 is greater than the cross-sectional area defined bγ the second perimetric side wall 16.
The third perimetric side wall 18 is spaced from the second perimetric side wall 16 bγ the second ledge 24 and extends from the second ledge 24 in a
direction generallγ opposite from the first direction. At the second ledge 24, the cross-sectional area defined bγ the second perimetric side wall 16 is greater than the cross-sectional area defined bγ the third perimetric side wall 18.
A first skirt-shaped perimetric flange 26 extends from the first perimetric ledge 22, and a second skirt-shaped perimetric flange 28 extends from the second perimetric ledge 24. The skirt-shaped flanges 26, 28 further enhance the rigidity of the product 10.
The first skirt-shaped flange 26 is outside of and spaced from the second perimetric side wall 16 and extends from the first ledge 22 in a direction generally opposite from the first direction.
The second skirt-shaped flange 28 is outside of and spaced from the third perimetric side wall 18 and extends from the second ledge 24 in a direction generallγ opposite from the first direction.
The stacking height "h" of the product is defined bγ the height of the skirt-shaped perimetric flange 26 plus the thickness of the ledge __2; and the height of the first perimetric side wall 14 is greater than the stacking height of .the product.
An alternative preferred embodiment of the product of the present invention is shown in Figure 2. In the embodiment of Figure 2, the product 10 further includes a third skirt-shaped flange 32 and a fourth skirt-shaped flange 34.
The third skirt-shaped flange 32 is inside of and spaced from the first perimetric side wall 14 and generallγ extends from the first ledge 22 in the first direction. The fourth skirt-shaped flange 34 is inside of and spaced from the second perimetric side wall 16 and generallγ extends from the second ledge 24 in the first direction. The third and fourth skirt-shaped perimetric flanges' further enhance the rigiditγ of the product 10.
In the embodiment of Figure 2, the stacking height "h" is determined by the separation of an interior ridge 30 from the base 20. The interior ridge 30 contacts the base 20 of the inserted like product 12 to limit such insertion and therebγ determine the stacking height "h" of the products 10, 12.
In other respects, the products 10 and 12 of Figure 2 are the same as the products shown in Figure 1, and the same reference numerals are used to refer to the same components.
The respective heights of the flanges 26, 28, 32 and 32 are not greater than the stacking height "h" of the products 10, 12.
The product of the present invention has other uses in addition to use as a beverage container. For example, It maγ be used as a food container or as a flower pot. Also it maγ be made as a tubular product not having a base closing either end of the product. When it is desired to use such a tubular product as a container, a base can be secured to one end of the product.
The skirt-shaped perimetric flanges need not be cγlindrical in order to be removed from the mold, when the plastic is flexible.
Various other embodiments will be obvious to those skilled in the art. For example, in contrast to the embodiments shown in the Drawing, the flanges maγ be misaligned with the side walls, and the ledges maγ be other than coplaner.
Claims
1. A hollow, stackable, molded plastic product having a given stacking height, comprising
a perimetric ledge;
a first perimetric side wall extending from the ledge in a first general direction for a distance exceeding the stacking height of the product;
a second perimetric side wall spaced from the first perimetric side wall bγ the ledge and extending from the ledge in a direction generallγ opposite from the first direction, wherein at the ledge the cross-sectional area defined by the first perimetric side wall is greater than the cross-sectional area defined by the second perimetric side wall; and
a skirt-shaped perimetric flange extending from the perimetric ledge.
2. A product according to Claim 1, wherein the skirt-shaped flange is outside of and spaced from the second perimetric side wall and extends from the ledge in a direction generallγ opposite from the first direction.
3. A product according to Claim 2, further comprising
a second skirt-shaped flange inside of and spaced from the first perimetric side wall and generally extending from the ledge in the first direction.
4. A product according to Claim 1, further comprising a second skirt-shaped flange inside of and spaced from the first perimetric side wall and generallγ extending from the ledge in the first direction.
5. A product according to Claim 1, further comprising
a second perimetric ledge;
a third perimetric side wall spaced from the second perimetric side wall bγ the second ledge and extending from the second ledge in a direction generallγ opposite from the first direction, wherein at the second ledge the cross-sectional area defined bγ the second perimetric side wall is greater than the cross-sectional area defined bγ the third perimetric side wall; and
a second skirt-shaped perimetric flange extending from the second perimetric ledge.
6. A product according to Claim 1, wherein the height of the perimetric flange plus the thickness of the ledge define the stacking height of the product.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US051,056 | 1987-05-14 | ||
US07/051,056 US4846350A (en) | 1987-05-14 | 1987-05-14 | Hollow, stackable molded product with rigidifying skirt-shaped flange |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1988008814A1 true WO1988008814A1 (en) | 1988-11-17 |
Family
ID=21969075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1988/001625 WO1988008814A1 (en) | 1987-05-14 | 1988-05-13 | Hollow, stackable, molded product with rigidifying skirt-shaped flange |
Country Status (4)
Country | Link |
---|---|
US (1) | US4846350A (en) |
EP (1) | EP0394245A4 (en) |
JP (1) | JP2914985B2 (en) |
WO (1) | WO1988008814A1 (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5203578A (en) * | 1991-11-12 | 1993-04-20 | In-Store Products Limited | Shopping cart and container apparatus |
US5267685A (en) * | 1993-02-25 | 1993-12-07 | Primtec | Stackability of hollow products with conically contoured sidewalls having longitudinal folds |
US5706605A (en) * | 1995-06-07 | 1998-01-13 | Southpac Trust International, Inc. | Thermoplastic flower pot with a thin skirt |
JP3901865B2 (en) * | 1999-02-03 | 2007-04-04 | 株式会社フジシールインターナショナル | Insulated container for food |
JP3506656B2 (en) * | 2000-05-15 | 2004-03-15 | 株式会社フジシール | Insulated container for food |
US20010050287A1 (en) * | 2000-05-15 | 2001-12-13 | Fuji Seal, Inc. | Heat-insulating container |
US20050221030A1 (en) * | 2004-03-31 | 2005-10-06 | Brown Paul P | Injection molding of nestable thin-wall plastic products |
US8302528B2 (en) | 2005-10-20 | 2012-11-06 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US8850964B2 (en) | 2005-10-20 | 2014-10-07 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US9211030B2 (en) | 2005-10-20 | 2015-12-15 | Conagra Foods Rdm, Inc. | Steam cooking apparatus |
US20070095695A1 (en) * | 2005-10-28 | 2007-05-03 | Smith Aaron W | Card file |
CA2527770C (en) * | 2005-11-21 | 2014-07-22 | Steven M. Parsons | Food tray |
US9132951B2 (en) | 2005-11-23 | 2015-09-15 | Conagra Foods Rdm, Inc. | Food tray |
USD636218S1 (en) | 2006-06-09 | 2011-04-19 | Conagra Foods Rdm, Inc. | Container assembly |
CA2679663C (en) | 2007-03-02 | 2015-12-08 | Catherine M. Shapiro | Multi-component packaging system and apparatus |
US8613249B2 (en) | 2007-08-03 | 2013-12-24 | Conagra Foods Rdm, Inc. | Cooking apparatus and food product |
USD638701S1 (en) | 2010-09-08 | 2011-05-31 | Conagra Foods Rdm, Inc. | Container |
USD639186S1 (en) | 2010-09-08 | 2011-06-07 | Conagra Foods Rdm, Inc. | Container with sleeve |
USD639656S1 (en) | 2010-09-08 | 2011-06-14 | Con Agra Foods RDM, Inc. | Container lid |
USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
EP3003902B1 (en) | 2013-05-24 | 2019-09-18 | Graphic Packaging International, LLC | Package for combined steam and microwave heating of food |
US11370579B2 (en) | 2017-02-07 | 2022-06-28 | Ball Corporation | Tapered metal cup and method of forming the same |
US10875076B2 (en) | 2017-02-07 | 2020-12-29 | Ball Corporation | Tapered metal cup and method of forming the same |
USD950318S1 (en) | 2018-05-24 | 2022-05-03 | Ball Corporation | Tapered cup |
JP2020055631A (en) * | 2018-09-28 | 2020-04-09 | 大日本印刷株式会社 | Injection molding container, container with lid, and manufacturing method of injection molding container |
USD906056S1 (en) | 2018-12-05 | 2020-12-29 | Ball Corporation | Tapered cup |
USD968893S1 (en) | 2019-06-24 | 2022-11-08 | Ball Corporation | Tapered cup |
USD953811S1 (en) | 2020-02-14 | 2022-06-07 | Ball Corporation | Tapered cup |
USD974845S1 (en) | 2020-07-15 | 2023-01-10 | Ball Corporation | Tapered cup |
USD1012617S1 (en) | 2021-02-22 | 2024-01-30 | Ball Corporation | Tapered cup |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3223305A (en) * | 1962-12-14 | 1965-12-14 | Illinois Tool Works | Plastic cup with fins |
GB1292217A (en) * | 1970-02-17 | 1972-10-11 | Sweetheart Plastics | Improvements in plastics containers |
GB1379371A (en) * | 1973-01-01 | 1975-01-02 | Hellberg & Olsson Ab | Cup for hot drinks |
US4181226A (en) * | 1977-01-29 | 1980-01-01 | Firma Weinert & Co. | Plastic bucket |
DE2902857A1 (en) * | 1979-01-25 | 1980-07-31 | Bebo Plastik Gmbh | Truncated conical or pyramidal plastics containers - having stacking shoulders with grooves receiving rim of container above |
GB2061699A (en) * | 1979-07-17 | 1981-05-20 | Mono Containers Ltd | Improvements in or relating to containers particularly cups |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3288340A (en) * | 1964-05-25 | 1966-11-29 | Sweetheart Plastics | Nestable container |
JPS5481983A (en) * | 1977-12-10 | 1979-06-29 | Jingo Seto | Plasticcmade enclosed container having bidirectionally accurate surface |
JPS5551785A (en) * | 1978-10-06 | 1980-04-15 | Kogyo Gijutsuin | Manufacture of citriccaciddsoluble potassium silicate fertilizer |
JPS604073B2 (en) * | 1980-07-02 | 1985-02-01 | 東洋ガラス株式会社 | Method and device for detecting defective bottles |
JPS6054523B2 (en) * | 1980-12-25 | 1985-11-30 | 株式会社ト−プラ | Bolt set with removable co-rotation prevention device |
US4425444A (en) * | 1983-03-17 | 1984-01-10 | Akzona Incorporated | Polyols for urethane-modified isocyanurate foams |
JPS6050659A (en) * | 1983-08-27 | 1985-03-20 | Kanji Ito | Disc storing/holding mechanism and disc feeding/storing mechanism of automatic selecting and reproducing device of digital disc |
JPS6055124A (en) * | 1983-08-31 | 1985-03-30 | K M Kikaku Kk | Stabilization work of slope by anchor rod |
-
1987
- 1987-05-14 US US07/051,056 patent/US4846350A/en not_active Expired - Lifetime
-
1988
- 1988-05-13 JP JP63504807A patent/JP2914985B2/en not_active Expired - Fee Related
- 1988-05-13 EP EP19880905109 patent/EP0394245A4/en not_active Withdrawn
- 1988-05-13 WO PCT/US1988/001625 patent/WO1988008814A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3223305A (en) * | 1962-12-14 | 1965-12-14 | Illinois Tool Works | Plastic cup with fins |
GB1292217A (en) * | 1970-02-17 | 1972-10-11 | Sweetheart Plastics | Improvements in plastics containers |
GB1379371A (en) * | 1973-01-01 | 1975-01-02 | Hellberg & Olsson Ab | Cup for hot drinks |
US4181226A (en) * | 1977-01-29 | 1980-01-01 | Firma Weinert & Co. | Plastic bucket |
DE2902857A1 (en) * | 1979-01-25 | 1980-07-31 | Bebo Plastik Gmbh | Truncated conical or pyramidal plastics containers - having stacking shoulders with grooves receiving rim of container above |
GB2061699A (en) * | 1979-07-17 | 1981-05-20 | Mono Containers Ltd | Improvements in or relating to containers particularly cups |
Non-Patent Citations (1)
Title |
---|
See also references of EP0394245A4 * |
Also Published As
Publication number | Publication date |
---|---|
JPH03504954A (en) | 1991-10-31 |
EP0394245A4 (en) | 1990-12-12 |
EP0394245A1 (en) | 1990-10-31 |
JP2914985B2 (en) | 1999-07-05 |
US4846350A (en) | 1989-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4846350A (en) | Hollow, stackable molded product with rigidifying skirt-shaped flange | |
US4928876A (en) | Bifrustoconical beverage container, lid, multi-secitonal straw, and fastening devices | |
US4446969A (en) | Reinforced nestable containers | |
US6571976B1 (en) | Insulated container sleeve with suction base | |
US4660725A (en) | Stackable integrally molded receptacle | |
US4428325A (en) | Feeding bowl and liner therefor | |
CA2326031A1 (en) | Thin wall closure container | |
CA2280797A1 (en) | Multi-layer containers | |
US6131732A (en) | Foam drink tray with improved cup cavities | |
US4483450A (en) | Container and removable lid therefor | |
US3471055A (en) | Nestable container with bottom stacking | |
CA2021045A1 (en) | Bung hole barrel | |
EP0076418B1 (en) | Method for manufacturing sealed plastics containers, in particular flacons, vials, and/or the like, and containers obtained thereby | |
JPH0417465Y2 (en) | ||
EP0073195B1 (en) | A preformed disposable insert for fitting in a holder | |
RU96119928A (en) | PRESSURIZED CASTING PLASTIC CAPACITY WITH ONE EDGE AND CLIPPING COVER | |
US5261537A (en) | Container | |
USD459653S1 (en) | Bung for sealing a container | |
US4488583A (en) | Arrangement to make possible the supply of material to receptacles and means therefore | |
JPS6119079Y2 (en) | ||
NL9200050A (en) | CAP FOR A BOTTLE. | |
EP0277080B1 (en) | Stackable lid for containers | |
JPH0511174Y2 (en) | ||
JPH0348017Y2 (en) | ||
KR100188452B1 (en) | Liquid container and its liquid input method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LU NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1988905109 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1988905109 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1988905109 Country of ref document: EP |