EP0005605B1 - Drinking cup - Google Patents
Drinking cup Download PDFInfo
- Publication number
- EP0005605B1 EP0005605B1 EP79300771A EP79300771A EP0005605B1 EP 0005605 B1 EP0005605 B1 EP 0005605B1 EP 79300771 A EP79300771 A EP 79300771A EP 79300771 A EP79300771 A EP 79300771A EP 0005605 B1 EP0005605 B1 EP 0005605B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- collar
- cup
- wall
- cups
- shoulder
- Prior art date
- 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
Links
Images
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
Definitions
- the present invention relates to nestable cups, particularly those cups in which hot beverages, such as coffee are drunk, and to stacks of such cups, each cup containing one or more beverage ingredients.
- cups have been provided with holders or ear-like handles.
- the present invention provides a nestable cup which can be held by the user when it contains hot water or hot beverage and which is simple and economic to manufacture.
- a nestable cup formed of thermoplastics material and comprising a base, a wall integral with and upstanding from the base to define therewith a reservoir for liquid, and a turned-over, downwardly extending collar circumjacent the wall and spaced therefrom; wherein the collar includes an outwardly and downwardly extending shoulder which is disposed between an upper portion and a lower portion (9) of the collar and which increases the transverse rigidity of the collar such that when the collar is normally gripped by a user it remains spaced from the upstanding wall, the collar is between 20 and 30 mm deep below the lip of the cup and there is at least 5 mm between the lip and the shoulder.
- thermoplastics material Whilst any thermoplastics material may be used to form the cup, currently commercially suitable materials include polystyrene, acrylonitrile/butadiene/styrene, and polypropylene resins, optionally filled with, for example, talc or chalk for additional strength.
- barrier resins or laminates/coextrusions is preferred since they improve the shelf life of beverage ingredients. Because of the relatively low softening point polyvinyl chloride and some acrylonitrile/butadiene/styrenes cannot be used for cups from which very hot beverages are to be drunk, although they can be used for warm beverages.
- the top cup When the cups are stacked the top cup can be fitted with a plug or snap-on cap to retain the beverage ingredient in the cup. Alternatively, a "dummy" cup which does not contain any ingredient may be useful.
- a plug is to be preferred to a snap-on cap when the stack is wrapped since the plug allows the enveloping film to be drawn into the top aperture region of the stack of cups and enables adequate top pressure to be obtained.
- the wrapped stack should be under a top to bottom pressure sufficient to prevent seepage of the beverage ingredients from the cups. Preferred methods of wrapping are described in United Kingdom Patent No. 1,539,729.
- Figure 1 shows the cup generally indicated at 1 having a generally cylindrical base 2 with an upstanding integral wall formed around its periphery. The free end of the wall 3 is turned over to form a lip 5 and an outwardly and downwardly extending collar 6 which has a depth below the lip of 20 to 30 mm.
- the collar 6 extends circumjacent the top of the upwardly extending portion of the wall 3 and is spaced therefrom.
- the collar 6 is provided with a ring of vertically extending ribs 7 extending around its centre portion to increase the rigidity of the collar 6.
- the shape and thickness of the collar may be considerably varied from that shown in Figures 1 and 2 and that the rib 7 may be omitted.
- the essential requirement for the collar 6 is that when it is gripped by a user it remains spaced from the upwardly extending portion of the wall 3.
- the collar 6 has an upper portion 8 which extends downwardly parallel to the upwardly extending portion of wall 3 and a flared skirt portion 9 which diverges away from the upwardly extending portion of wall 3.
- the collar 6 has an outwardly extending and downwardly inclined shoulder 13 between the upper portion 8 and lower portion 9. It will be noted in this case that the lower portion 9 extends vertically.
- the provision of the shoulder 13 increases the rigidity of the collar and indeed the provision of such a shoulder alone, without the ribs 7, can provide sufficient rigidity in the collar 6.
- the lower portion 9 of the collar may be provided with indents, not shown, which provide gripping points for the user's fingers and increase the rigidity of the lower portion 9 of the collar 6.
- the cup 1 is further provided with an inwardly extending annular internal shoulder 10, which is shown in Figure 1, for supporting a like cup in a nesting relationship.
- the base 2 of the cup 1 has a central dome shaped portion (not shown) which is provided both to give strength to the cup 1 and to resist inversion of the base 2, which inversion can occur when a hot liquid is poured into the cup 1.
- This space can contain one or more ingredients, such as coffee powder, for a beverage when the cup is stacked.
- the flared portion 9 of the collar 6 allows the upper cup to be nested in the lower cup in such a way as to readily allow the lower cup to be withdrawn from the stack.
- a hot liquid is poured into the cup 1 to make a beverage from the dried ingredient, not shown, contained in the cup.
- the user can then grip the cup by means of the collar 6.
- the arrangement of the shape and rigidity of the collar is such that when the cup is gripped under normal pressures the collar remains spaced from the upwardly extending portion of the wall 3.
- the air within this space is a reasonably good heat insulator and thus to all intents and purposes heat is only conveyed from the hot beverage to the user's fingers by conduction of the heat from the liquid up the upwardly extending portion of the wall 3, through the lip 5 and down the collar 6.
- the lip 5 offers an improved drinking surface over that of many known cups, in particular because there is no need when making the cups to roll the rim as is normally an additional operation in those cups which are manufactured by thermoforming.
- the drinking surface can be further improved if the ribs 7 are omitted.
- Figures 3 and 4 show a method of thermoforming the cups of Figures 1 and 2.
- a sheet of thermoplastics material 14 is positioned under a heater 15 which heats the sheet 10 radiantly. This is shown in position A.
- the sheet of material 10 is then gripped at its edges by means not shown, projected forward into a position above a water cooled female mould 1 6 (position B).
- a clamp 17 is then applied around the cavity 18 of the moult 16.
- the position of clamp 17 in relation to mould 16 depends on whether the material from an area of sheet larger than that of the mould aperture is required to make the forming.
- the mould 16 is then moved upwardly towards the sheet material 14 and during this operation air is blown from both inside and outside the mould 16.
- Air vents, not shown, are provided in the mould 16 for this purpose.
- the air pressure forces the sheet of material 14 into a position shown at C.
- a heated mechanical punch (not shown) shaped to the interior of the mould forces the material 14 down into the moult 16 where it adopts the shape of the interior of the mould. Air is expelled from the mould to the air vents (not shown). If desired, the explusion of air can be assisted by the use of vacuum exhaustion.
- stage D the forming 19 is cut from the sheet 14 and the remaining part can be reprocessed.
- the process described is an intermittent process and whilst one part of a sheet of material is being heated another part is being thermoformed and in another part form- ings are being cut from the sheet.
- the cups can be formed by injection moulding or injection blow moulding.
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Table Devices Or Equipment (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Stackable Containers (AREA)
- Materials For Medical Uses (AREA)
- Wrappers (AREA)
- Packages (AREA)
Description
- The present invention relates to nestable cups, particularly those cups in which hot beverages, such as coffee are drunk, and to stacks of such cups, each cup containing one or more beverage ingredients.
- It has long been known that a single walled cup does not present a very good thermal barrier to insulate the fingers of a person holding such cups containing a hot beverage from the heat given out by that beverage.
- Various proposals have been made for cups which could provide better heat insulation, such as "double walled" cups. United States Patent Specification No. 2493633 and British Patent Specification No. 1325230 both describe and illustrate double-walled containers. These containers suffer from the disadvantage that a considerable amount of material is required for their manufacture.
- Alternatively, cups have been provided with holders or ear-like handles.
- The present invention provides a nestable cup which can be held by the user when it contains hot water or hot beverage and which is simple and economic to manufacture.
- According to the present invention, there is provided a nestable cup formed of thermoplastics material and comprising a base, a wall integral with and upstanding from the base to define therewith a reservoir for liquid, and a turned-over, downwardly extending collar circumjacent the wall and spaced therefrom; wherein the collar includes an outwardly and downwardly extending shoulder which is disposed between an upper portion and a lower portion (9) of the collar and which increases the transverse rigidity of the collar such that when the collar is normally gripped by a user it remains spaced from the upstanding wall, the collar is between 20 and 30 mm deep below the lip of the cup and there is at least 5 mm between the lip and the shoulder.
- Whilst any thermoplastics material may be used to form the cup, currently commercially suitable materials include polystyrene, acrylonitrile/butadiene/styrene, and polypropylene resins, optionally filled with, for example, talc or chalk for additional strength. The use of barrier resins or laminates/coextrusions is preferred since they improve the shelf life of beverage ingredients. Because of the relatively low softening point polyvinyl chloride and some acrylonitrile/butadiene/styrenes cannot be used for cups from which very hot beverages are to be drunk, although they can be used for warm beverages.
- When the cups are stacked the top cup can be fitted with a plug or snap-on cap to retain the beverage ingredient in the cup. Alternatively, a "dummy" cup which does not contain any ingredient may be useful. A plug is to be preferred to a snap-on cap when the stack is wrapped since the plug allows the enveloping film to be drawn into the top aperture region of the stack of cups and enables adequate top pressure to be obtained. Preferably the wrapped stack should be under a top to bottom pressure sufficient to prevent seepage of the beverage ingredients from the cups. Preferred methods of wrapping are described in United Kingdom Patent No. 1,539,729.
- Specific embodiments of the invention will now be described with reference to the accompanying drawings in which:-
- Figure 1 is a side elevation, partially in section, of an embodiment of the cup;
- Figure 2 is an enlarged cross-sectional view of the tops of two cups of the type shown in Figure 1 in a nesting relationship;
- Figure 3 shows a manufacture of a cup of the present invention with the apparatus in side view; and
- Figure 4 shows from above a batch of twelve cups being made in accordance with the method of manufacture shown in Figure 3.
- Figure 1 shows the cup generally indicated at 1 having a generally cylindrical base 2 with an upstanding integral wall formed around its periphery. The free end of the
wall 3 is turned over to form a lip 5 and an outwardly and downwardly extendingcollar 6 which has a depth below the lip of 20 to 30 mm. - The
collar 6 extends circumjacent the top of the upwardly extending portion of thewall 3 and is spaced therefrom. Thecollar 6 is provided with a ring of vertically extending ribs 7 extending around its centre portion to increase the rigidity of thecollar 6. - It will be appreciated that the shape and thickness of the collar may be considerably varied from that shown in Figures 1 and 2 and that the rib 7 may be omitted. The essential requirement for the
collar 6 is that when it is gripped by a user it remains spaced from the upwardly extending portion of thewall 3. - The
collar 6 has anupper portion 8 which extends downwardly parallel to the upwardly extending portion ofwall 3 and a flared skirt portion 9 which diverges away from the upwardly extending portion ofwall 3. - The
collar 6 has an outwardly extending and downwardlyinclined shoulder 13 between theupper portion 8 and lower portion 9. It will be noted in this case that the lower portion 9 extends vertically. The provision of theshoulder 13 increases the rigidity of the collar and indeed the provision of such a shoulder alone, without the ribs 7, can provide sufficient rigidity in thecollar 6. - The lower portion 9 of the collar may be provided with indents, not shown, which provide gripping points for the user's fingers and increase the rigidity of the lower portion 9 of the
collar 6. - The cup 1 is further provided with an inwardly extending annular
internal shoulder 10, which is shown in Figure 1, for supporting a like cup in a nesting relationship. - The base 2 of the cup 1 has a central dome shaped portion (not shown) which is provided both to give strength to the cup 1 and to resist inversion of the base 2, which inversion can occur when a hot liquid is poured into the cup 1.
- The bases 2 of the nested cups together define a space. This space can contain one or more ingredients, such as coffee powder, for a beverage when the cup is stacked.
- It will be noted that the flared portion 9 of the
collar 6 allows the upper cup to be nested in the lower cup in such a way as to readily allow the lower cup to be withdrawn from the stack. - In use a hot liquid is poured into the cup 1 to make a beverage from the dried ingredient, not shown, contained in the cup. The user can then grip the cup by means of the
collar 6. The arrangement of the shape and rigidity of the collar is such that when the cup is gripped under normal pressures the collar remains spaced from the upwardly extending portion of thewall 3. The air within this space is a reasonably good heat insulator and thus to all intents and purposes heat is only conveyed from the hot beverage to the user's fingers by conduction of the heat from the liquid up the upwardly extending portion of thewall 3, through the lip 5 and down thecollar 6. - It will be appreciated that the length of this path is considerably greater than the thickness of a normal thermoplastics cup and therefore the cup is considerably more comfortable to hold than a traditional thermoplastics cup.
- It will be noted that in all of the constructions the lip 5 offers an improved drinking surface over that of many known cups, in particular because there is no need when making the cups to roll the rim as is normally an additional operation in those cups which are manufactured by thermoforming.
- The drinking surface can be further improved if the ribs 7 are omitted.
- Figures 3 and 4 show a method of thermoforming the cups of Figures 1 and 2. In Figures 3 and 4 a sheet of
thermoplastics material 14 is positioned under aheater 15 which heats thesheet 10 radiantly. This is shown in position A. The sheet ofmaterial 10 is then gripped at its edges by means not shown, projected forward into a position above a water cooled female mould 1 6 (position B). - A
clamp 17 is then applied around thecavity 18 of themoult 16. The position ofclamp 17 in relation tomould 16 depends on whether the material from an area of sheet larger than that of the mould aperture is required to make the forming. Themould 16 is then moved upwardly towards thesheet material 14 and during this operation air is blown from both inside and outside themould 16. Air vents, not shown, are provided in themould 16 for this purpose. The air pressure forces the sheet ofmaterial 14 into a position shown at C. A heated mechanical punch (not shown) shaped to the interior of the mould forces thematerial 14 down into themoult 16 where it adopts the shape of the interior of the mould. Air is expelled from the mould to the air vents (not shown). If desired, the explusion of air can be assisted by the use of vacuum exhaustion. - During a further stage D the forming 19 is cut from the
sheet 14 and the remaining part can be reprocessed. The process described is an intermittent process and whilst one part of a sheet of material is being heated another part is being thermoformed and in another part form- ings are being cut from the sheet. - It will be appreciated that it is the unitary construction of the cups 1 which facilitate their easy construction.
- It will further be appreciated that alternatively the cups can be formed by injection moulding or injection blow moulding.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19969/78A GB1602258A (en) | 1978-05-16 | 1978-05-16 | Insulated drinking cups |
GB1996978 | 1978-05-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0005605A1 EP0005605A1 (en) | 1979-11-28 |
EP0005605B1 true EP0005605B1 (en) | 1982-06-30 |
Family
ID=10138134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79300771A Expired EP0005605B1 (en) | 1978-05-16 | 1979-05-04 | Drinking cup |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0005605B1 (en) |
JP (1) | JPS54150277A (en) |
AU (1) | AU528933B2 (en) |
CA (1) | CA1161404A (en) |
DE (1) | DE2963222D1 (en) |
DK (1) | DK148173C (en) |
ES (1) | ES250507Y (en) |
FI (1) | FI71476C (en) |
GB (1) | GB1602258A (en) |
NO (1) | NO151277C (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6397610U (en) * | 1986-12-17 | 1988-06-24 | ||
GB2201581B (en) * | 1987-03-03 | 1991-01-09 | Plastici Articoli Special Ind | Cup for coffee, or similar drinks, formed of synthetic thermoplastics material |
GB2204478B (en) * | 1987-05-15 | 1991-02-13 | Mono Containers Ltd | Insulated cups |
FI20020286A (en) * | 2002-02-13 | 2003-08-14 | Stora Enso Oyj | Drinking cup and process for making thereof |
ITMI20090005A1 (en) * | 2009-01-08 | 2010-07-09 | Novacart Spa | CONTAINER IN PAPER MATERIAL FOR FOOD, FOR EXAMPLE LIQUIDS, IN PARTICULAR DRINKS, AS A GLASS FOR HOT DRINKS |
FR2956963B1 (en) * | 2010-03-06 | 2012-04-20 | Shivedutt Rughoobur | THIN-WALL BEVERAGE CONTAINER EQUIPPED WITH A TAPPING AND HOLDING TAB AND METHOD OF MANUFACTURING THE SAME |
GB2563819A (en) * | 2017-05-16 | 2019-01-02 | Aegg Ltd | Containers for food products |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2493633A (en) * | 1946-06-03 | 1950-01-03 | Leon T Mart | Double-walled container |
FR1376764A (en) * | 1963-09-23 | 1964-10-31 | Illinois Tool Works | Container and lid |
BE703364A (en) * | 1967-09-01 | 1968-02-01 | ||
GB1267351A (en) * | 1968-03-08 | 1972-03-15 | Calmec Extruform Ltd | Improvements in plastics containers, methods of producing them and tooling apparatus therefor |
JPS523980B2 (en) * | 1972-01-13 | 1977-01-31 | ||
GB1325230A (en) * | 1972-07-14 | 1973-08-01 | Jacobs S A | Drinking cups |
US4024951A (en) * | 1975-05-12 | 1977-05-24 | Compact Industries, Inc. | Cup and package of cups |
JPS523980U (en) * | 1975-06-23 | 1977-01-12 | ||
JPS5217271A (en) * | 1975-07-31 | 1977-02-09 | Iwai Tsusho Kk | Molding device of paper made container |
-
1978
- 1978-05-16 GB GB19969/78A patent/GB1602258A/en not_active Expired
-
1979
- 1979-04-27 CA CA000326505A patent/CA1161404A/en not_active Expired
- 1979-05-04 DE DE7979300771T patent/DE2963222D1/en not_active Expired
- 1979-05-04 EP EP79300771A patent/EP0005605B1/en not_active Expired
- 1979-05-14 FI FI791535A patent/FI71476C/en not_active IP Right Cessation
- 1979-05-14 AU AU46973/79A patent/AU528933B2/en not_active Ceased
- 1979-05-14 ES ES1979250507U patent/ES250507Y/en not_active Expired
- 1979-05-15 DK DK199179A patent/DK148173C/en not_active IP Right Cessation
- 1979-05-15 NO NO791615A patent/NO151277C/en unknown
- 1979-05-15 JP JP5959579A patent/JPS54150277A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ES250507U (en) | 1980-07-16 |
ES250507Y (en) | 1981-01-16 |
GB1602258A (en) | 1981-11-11 |
EP0005605A1 (en) | 1979-11-28 |
NO791615L (en) | 1979-11-19 |
DK199179A (en) | 1979-11-17 |
AU528933B2 (en) | 1983-05-19 |
FI71476B (en) | 1986-10-10 |
DE2963222D1 (en) | 1982-08-19 |
NO151277B (en) | 1984-12-03 |
DK148173B (en) | 1985-04-22 |
FI791535A (en) | 1979-11-17 |
AU4697379A (en) | 1979-11-22 |
CA1161404A (en) | 1984-01-31 |
DK148173C (en) | 1985-10-07 |
FI71476C (en) | 1987-01-19 |
NO151277C (en) | 1985-03-13 |
JPH0347843B2 (en) | 1991-07-22 |
JPS54150277A (en) | 1979-11-26 |
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