US3076584A - Fluid containers or cartons - Google Patents
Fluid containers or cartons Download PDFInfo
- Publication number
- US3076584A US3076584A US853869A US85386959A US3076584A US 3076584 A US3076584 A US 3076584A US 853869 A US853869 A US 853869A US 85386959 A US85386959 A US 85386959A US 3076584 A US3076584 A US 3076584A
- Authority
- US
- United States
- Prior art keywords
- protrusion
- wall
- container
- corner
- edge
- 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 - Lifetime
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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
- B65D83/00—Containers or packages with special means for dispensing contents
-
- 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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
Definitions
- This invention relates to fluid containers formed of thin sheet material for holding flowable substances, whether granular or liquid such as hot or cold drinks, and particularly to containers which are sealed after filling.
- the term fluid containers is hereafter used for convenience for such containers.
- a plastic walled container it is impracticable to provide perforations since no waxing occurs in manufacture, and it is equally undesirable to rely upon the consumer having available some puncturing instrument.
- the wall is formed with a protrusion so shaped that the base profile thereof includes a corner such that when pressure is applied to the protrusion a concentrated load is transmitted to a localized area or point of the wall adjacent the corner, which is thus ruptured.
- the invention may be applied to part of the wall of the body of a container, for example to the base wall of the container or to the lid of the container and the invention therefore includes within its scope a lid for closing a container and formed with a protrusion shaped in the manner set forth above.
- container element will be'used to embrace a container manufactured as an integral unit and including the protrusion of the instant invention and. also a container lid or closure, for closing a container, formed with the protrusion of the instant invention.
- base profile as used herein is to be understood to refer to the line formed by the junction of the surface of the protrusion with the adjacent parts of the wall of the container.
- the wall of a fluid container is formed with a protrusion comprising two flat sides which intersect on a line or edge which is inclined at a substantial angle to the general plane of the wall adjacent the protrusion, the base profiles of the two flat sides where they intersect the general plane of the wall preferably forming an angle which is less than 135, and preferably 90, or less.
- edge formed by the intersection of the two flat sides is normal to the general plane of the wall where it intersects this plane, or inclined thereto at an angle of less than 30.
- the protrusion comprises two side side walls, which are approximately normal to the general plane of the wall of the container and an inclined upper wall of triangular shape, the apex of which lies at the upper end of the edge formed by the intersection of the two side walls.
- the protrusion is preferably formed in a well or depression in the wall concerned or is surrounded by a rim so as to be protected against accidental damage or pressure.
- the container is of generally tubular form with a base formed integrally with the side walls and a lid which closes the upper end of the container after it has been filled and in such a construction the protrusion will conveniently be formed either in the base or in the lid and be protected by a rim surrounding the base or surrounding or formed on the lid.
- the invention is particlularly applicable to containers formed of a synthetic plastic material such as polystyrene which is sufiiciently brittle to be ruptured readily when pressure is applied to the protrusion and one construction of container according to the invention in which the invention is applied to the lid is shown by way of example in the accompanying drawings, in which:
- FIGURE 1 is a perspective view of the lid incorporating the invention
- FIGURE 2 is a section on the line IIII of FIGURE 1, but showing the manner in which the lid is applied to the upper end of a container;
- FIGURE 3 is a similar view to FIGURE 2 but on the line III-1110f FIGURE 1, and
- FIGURE 4 is a similar view to FIGURE 2 but showing the manner in which the lid may be ruptured by depression of the protrusion.
- the container 1 may consist of a circumferential wall 1 of generally tapered generally square cross-section formed integrally with a base and provided at its upper end with an outwardly projecting rim 2 to which, after the container has been filled an edge portion 3 of a lid generally indicated at 4 is heat sealed in a manner known per se.
- Both the container and lid are formed of a thin comparatively brittle synthetic plastic material such as polystyrene.
- the lid is provided immediately on the inside of the rim 3 with a shallow trough-like depression 5, which serves to locate the lid on the upper end of the container prior to heat sealing, and a tapered upwardly projecting part 6 extends inwards and upwards after the manner of the base part of a pyramid from the base of the trough-like depression 5.
- a depression or well having a base 7 at the centre of which is formed a protrusion, in accordance with the invention.
- this protrusion comprises two flat side walls 8 and 9 which lie at approximately to one another and approximately normal to the general plane of the base 7 of the well, and an inclined upper wall 10 of triangular shape, the apex 11 of which lies at the upper end of the junction edge 12 formed by the intersection of the two side walls 8 and 9.
- pressure applied to the apex 11 forces the parts of the two side walls 8 and 9 adjacent to their junction 12 downwards to rupture the base 7 of the well in the manner indicated in FIGURE 4.
- the line along which the base 7 ruptures is not completely determinate, but is generally as indicated in FIG- URE 4 and in all cases, extends from the bottom of the junction 12 partially or Wholly across the base 7.
- the lid of the container in the manner indicated with a protrusion 8, 9, 10
- the lid might be of other form and a protrusion of the form shown might be formed in the base wall of the container, in which event the normal procedure would be to invert the container before depressing the apex 11 of the protrusion to obtain access to the contents.
- the base of the container 3 could readily be provided, in a manner well known per S6, with a rim of sufiicient depth to protect the protrusion 8, 9, 10, from accidental or unintentional depression.
- protrusion 8, 9, 10 it might be desirable to form the protrusion 8, 9, 10, so that it projects inwards and to provide a tab or similar means attached to the inside of the apex 11 or of the junction 12 by which this junction can be pulled outwards to rupture the wall.
- a thin-walled fracturable container element capable of fracture by application of finger pressure for fiowable substances including an outer wall portion, a central wall portion lying within said outer wall portion and united thereto by a rim portion the edges of which rim portion are united respectively to the said central wall portion and to the said outer wall portion and lie in displaced approximately parallel planes, and a protrusion formed in the central wall portion and spaced from the rim portion, said protrusion having a base profile which includes at least one corner and including two side walls which meet at an edge, the inner end of said edge lying at said corner while its outer end is substantially displaced from the plane of the surrounding part of the central wall portion and constitutes a part by which a force can be 4 transmitted along said edge to said corner to produce a concentrated load on the material adjacent to said corner to rupture same.
- a thin-walled fracturable container element capable of fracture by application of finger pressure for fiowable substances wherein the wall of said element includes a part constituting a hollow protrusion, the base profile of which protrusion includes at least one corner, and the wall of the container element immediately surrounding said protrusion lies within a rim which projects above the plane of said part of the wall of the container element to a greater height than said protrusion, said protrusion including a pair of side walls which meet at an edge one end of which edge lies at said corner while its other end is substantially displaced from said corner and forms a part from which pressure can be transmitted along said edge to the localized area adjacent said corner to apply a concentrated load at said localized area and cause rupture of the wall of said container element.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
- Closures For Containers (AREA)
Description
' Feb. 5, 1963 J. G. SHERLOCK 3,075,584
" FLUID CONTAINERS OR CARTONS Filed Nov. 18. 1959 INvEN'roR JOHN G. SHeRLocK ATTORNEYS United States Patent Ofitice 3,076,584 Patented Feb. 5, 1963 3,076,584 FLUID CONTAINERS R CARTONS John Gerrard Sherlock, Feltham, England, assignor to Plastic Packaging Limited, London, England, a comau of GreatBritain p y Filed Nov. 18, 1959, Ser. No. 953,869
Claims priority, application Great Britain Dec. 3, 1958 2 Claims. (Cl. 222-541) This invention relates to fluid containers formed of thin sheet material for holding flowable substances, whether granular or liquid such as hot or cold drinks, and particularly to containers which are sealed after filling. The term fluid containers is hereafter used for convenience for such containers.
Hitherto such containers have commonly been manufactured from waxed paper, and to enable the contents to be withdrawn the paper wall of the container has usually been perforated and the perforations subsequently sealed with wax, thus providing a, weakened line or area in the wall of the container which can be broken to allow a drinking straw to be inserted or the contents poured off.
It is an object of the present invention to provide an improved means of access .to the contents of the container which is particularly applicable to containers formed for example of a synthetic plastic material. Thus in a plastic walled container it is impracticable to provide perforations since no waxing occurs in manufacture, and it is equally undesirable to rely upon the consumer having available some puncturing instrument.
In a thin-walled fluid container according to the present invention the wall is formed with a protrusion so shaped that the base profile thereof includes a corner such that when pressure is applied to the protrusion a concentrated load is transmitted to a localized area or point of the wall adjacent the corner, which is thus ruptured.
The invention may be applied to part of the wall of the body of a container, for example to the base wall of the container or to the lid of the container and the invention therefore includes within its scope a lid for closing a container and formed with a protrusion shaped in the manner set forth above. For the purpose of simplicity in the instant specification and claims, container element will be'used to embrace a container manufactured as an integral unit and including the protrusion of the instant invention and. also a container lid or closure, for closing a container, formed with the protrusion of the instant invention.
The term base profile as used herein is to be understood to refer to the line formed by the junction of the surface of the protrusion with the adjacent parts of the wall of the container.
Thus according to a preferred aspect of the invention, the wall of a fluid container is formed with a protrusion comprising two flat sides which intersect on a line or edge which is inclined at a substantial angle to the general plane of the wall adjacent the protrusion, the base profiles of the two flat sides where they intersect the general plane of the wall preferably forming an angle which is less than 135, and preferably 90, or less.
Preferably also the edge formed by the intersection of the two flat sides is normal to the general plane of the wall where it intersects this plane, or inclined thereto at an angle of less than 30.
In a preferred form the protrusion comprises two side side walls, which are approximately normal to the general plane of the wall of the container and an inclined upper wall of triangular shape, the apex of which lies at the upper end of the edge formed by the intersection of the two side walls.
In any case the protrusion is preferably formed in a well or depression in the wall concerned or is surrounded by a rim so as to be protected against accidental damage or pressure.
Conveniently the container is of generally tubular form with a base formed integrally with the side walls and a lid which closes the upper end of the container after it has been filled and in such a construction the protrusion will conveniently be formed either in the base or in the lid and be protected by a rim surrounding the base or surrounding or formed on the lid.
The invention is particlularly applicable to containers formed of a synthetic plastic material such as polystyrene which is sufiiciently brittle to be ruptured readily when pressure is applied to the protrusion and one construction of container according to the invention in which the invention is applied to the lid is shown by way of example in the accompanying drawings, in which:
FIGURE 1 is a perspective view of the lid incorporating the invention;
FIGURE 2 is a section on the line IIII of FIGURE 1, but showing the manner in which the lid is applied to the upper end of a container;
FIGURE 3 is a similar view to FIGURE 2 but on the line III-1110f FIGURE 1, and
FIGURE 4 is a similar view to FIGURE 2 but showing the manner in which the lid may be ruptured by depression of the protrusion.
In the construction shown in the drawings the container 1 may consist of a circumferential wall 1 of generally tapered generally square cross-section formed integrally with a base and provided at its upper end with an outwardly projecting rim 2 to which, after the container has been filled an edge portion 3 of a lid generally indicated at 4 is heat sealed in a manner known per se. Both the container and lid are formed of a thin comparatively brittle synthetic plastic material such as polystyrene. As will be seen the lid is provided immediately on the inside of the rim 3 with a shallow trough-like depression 5, which serves to locate the lid on the upper end of the container prior to heat sealing, and a tapered upwardly projecting part 6 extends inwards and upwards after the manner of the base part of a pyramid from the base of the trough-like depression 5. Formed over the centre portion of the lid so as to be surrounded by a rim 611 formed by the upper edge portion of the part 6 is a depression or well having a base 7 at the centre of which is formed a protrusion, in accordance with the invention. As will be seen this protrusion comprises two flat side walls 8 and 9 which lie at approximately to one another and approximately normal to the general plane of the base 7 of the well, and an inclined upper wall 10 of triangular shape, the apex 11 of which lies at the upper end of the junction edge 12 formed by the intersection of the two side walls 8 and 9. Thus, pressure applied to the apex 11 forces the parts of the two side walls 8 and 9 adjacent to their junction 12 downwards to rupture the base 7 of the well in the manner indicated in FIGURE 4. The line along which the base 7 ruptures is not completely determinate, but is generally as indicated in FIG- URE 4 and in all cases, extends from the bottom of the junction 12 partially or Wholly across the base 7.
It will be apparent that the rim 6a formed by the upper edge of the part 6 tends to protect the protrusion 8, 9, 10, from being accidentally damaged or depressed.
It will be readily understood that if desired, instead of forming the lid of the container in the manner indicated with a protrusion 8, 9, 10, the lid might be of other form and a protrusion of the form shown might be formed in the base wall of the container, in which event the normal procedure would be to invert the container before depressing the apex 11 of the protrusion to obtain access to the contents. It will also be readily appreciated that in such an arrangement the base of the container 3 could readily be provided, in a manner well known per S6, with a rim of sufiicient depth to protect the protrusion 8, 9, 10, from accidental or unintentional depression.
It would also be possible in some cases to provide a protrusion of the form shown in some other part of the wall of the container.
Again in some instances it might be desirable to form the protrusion 8, 9, 10, so that it projects inwards and to provide a tab or similar means attached to the inside of the apex 11 or of the junction 12 by which this junction can be pulled outwards to rupture the wall.
What I claim as my invention and desire to secure by Letters Patent is,
1. A thin-walled fracturable container element capable of fracture by application of finger pressure for fiowable substances including an outer wall portion, a central wall portion lying within said outer wall portion and united thereto by a rim portion the edges of which rim portion are united respectively to the said central wall portion and to the said outer wall portion and lie in displaced approximately parallel planes, and a protrusion formed in the central wall portion and spaced from the rim portion, said protrusion having a base profile which includes at least one corner and including two side walls which meet at an edge, the inner end of said edge lying at said corner while its outer end is substantially displaced from the plane of the surrounding part of the central wall portion and constitutes a part by which a force can be 4 transmitted along said edge to said corner to produce a concentrated load on the material adjacent to said corner to rupture same.
2. A thin-walled fracturable container element capable of fracture by application of finger pressure for fiowable substances wherein the wall of said element includes a part constituting a hollow protrusion, the base profile of which protrusion includes at least one corner, and the wall of the container element immediately surrounding said protrusion lies within a rim which projects above the plane of said part of the wall of the container element to a greater height than said protrusion, said protrusion including a pair of side walls which meet at an edge one end of which edge lies at said corner while its other end is substantially displaced from said corner and forms a part from which pressure can be transmitted along said edge to the localized area adjacent said corner to apply a concentrated load at said localized area and cause rupture of the wall of said container element.
References Cited in the file of this patent UNITED STATES PATENTS
Claims (1)
- 2. A THIN-WALLED FRACTURABLE CONTAINER ELEMENT CAPABLE OF FRACTURE BY APPLICATION OF FINGER PRESSURE FOR FLOWABLE SUBSTANCES WHEREIN THE WALL OF SAID ELEMENT INCLUDES A PART CONSTITUTING A HOLLOW PROTRUSION, THE BASE PROFILE OF WHICH PROTRUSION INCLUDES AT LEAST ONE CORNER, AND THE WALL OF THE CONTAINER ELEMENT IMMEDIATELY SURROUNDING SAID PROTRUSION LIES WITHIN A RIM WHICH PROJECTS ABOVE THE PLANE OF SAID PART OF THE WALL OF THE CONTAINER ELEMENT TO A GREATER HEIGHT THAN SAID PROTRUSION, SAID PROTRUSION INCLUDING A PAIR OF SIDE WALLS WHICH MEET AT AN EDGE ONE END OF WHICH EDGE LIES AT SAID CORNER WHILE ITS OTHER END IS SUBSTANTIALLY DISPLACED FROM SAID CORNER AND FORMS A PART FROM WHICH PRESSURE CAN BE TRANSMITTED ALONG SAID EDGE TO THE LOCALIZED AREA ADJACENT SAID CORNER TO APPLY A CONCENTRATED LOAD AT SAID LOCALIZED AREA AND CAUSE RUPTURE OF THE WALL OF SAID CONTAINER ELEMENT.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB39042/58A GB904078A (en) | 1958-12-03 | 1958-12-03 | Fluid containers or cartons |
Publications (1)
Publication Number | Publication Date |
---|---|
US3076584A true US3076584A (en) | 1963-02-05 |
Family
ID=10407269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US853869A Expired - Lifetime US3076584A (en) | 1958-12-03 | 1959-11-18 | Fluid containers or cartons |
Country Status (3)
Country | Link |
---|---|
US (1) | US3076584A (en) |
DE (1) | DE1184231B (en) |
GB (1) | GB904078A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3171580A (en) * | 1963-03-19 | 1965-03-02 | Sweetheart Plastics | Lid |
US3227304A (en) * | 1964-09-08 | 1966-01-04 | Charles T Ashury | Can opening arrangement |
US3246791A (en) * | 1963-08-12 | 1966-04-19 | Charles T Asbury | Can-opening arrangement |
US3307746A (en) * | 1965-06-28 | 1967-03-07 | Illinois Tool Works | Frangible opening device for containers |
US4081103A (en) * | 1976-03-26 | 1978-03-28 | Allen Peter Zoellick | Cover for drinking containers |
US4085861A (en) * | 1974-01-18 | 1978-04-25 | Ruff Stanley L | Insulating drink-through closure lids for potable open-top containers |
US4244490A (en) * | 1979-08-06 | 1981-01-13 | Klein Gerald B | Conical can end with push down gate |
US4262815A (en) * | 1980-03-10 | 1981-04-21 | Klein Gerald B | Conical can end with a gate and opening tab at the cone apex |
US4484691A (en) * | 1975-11-03 | 1984-11-27 | Duracell Inc. | Pressure release device |
USD758572S1 (en) * | 2014-06-20 | 2016-06-07 | Integrated Healing Technologies, Llc. | Wound drain dome |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1177115A (en) * | 1915-08-21 | 1916-03-28 | Defiance Pressed Steel Co | Packing-case. |
US2157646A (en) * | 1938-10-01 | 1939-05-09 | A H Wirz Inc | Single use tube |
US2261117A (en) * | 1939-06-09 | 1941-11-04 | Us Can Corp | Closure member and method of preparing same |
US2627991A (en) * | 1949-11-21 | 1953-02-10 | Helen M Maersch | Covered serving dish |
US2773590A (en) * | 1954-01-08 | 1956-12-11 | Royal Electric Company Inc | Display container |
US2839234A (en) * | 1951-11-30 | 1958-06-17 | Weinon Corp | Container with pouring spout and opening |
US2899100A (en) * | 1959-08-11 | Wolkenberg |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2152322A (en) * | 1936-01-30 | 1939-03-28 | Humoco Corp | Container |
-
1958
- 1958-12-03 GB GB39042/58A patent/GB904078A/en not_active Expired
-
1959
- 1959-11-18 US US853869A patent/US3076584A/en not_active Expired - Lifetime
- 1959-12-03 DE DEP24014A patent/DE1184231B/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899100A (en) * | 1959-08-11 | Wolkenberg | ||
US1177115A (en) * | 1915-08-21 | 1916-03-28 | Defiance Pressed Steel Co | Packing-case. |
US2157646A (en) * | 1938-10-01 | 1939-05-09 | A H Wirz Inc | Single use tube |
US2261117A (en) * | 1939-06-09 | 1941-11-04 | Us Can Corp | Closure member and method of preparing same |
US2627991A (en) * | 1949-11-21 | 1953-02-10 | Helen M Maersch | Covered serving dish |
US2839234A (en) * | 1951-11-30 | 1958-06-17 | Weinon Corp | Container with pouring spout and opening |
US2773590A (en) * | 1954-01-08 | 1956-12-11 | Royal Electric Company Inc | Display container |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3171580A (en) * | 1963-03-19 | 1965-03-02 | Sweetheart Plastics | Lid |
US3246791A (en) * | 1963-08-12 | 1966-04-19 | Charles T Asbury | Can-opening arrangement |
US3227304A (en) * | 1964-09-08 | 1966-01-04 | Charles T Ashury | Can opening arrangement |
US3307746A (en) * | 1965-06-28 | 1967-03-07 | Illinois Tool Works | Frangible opening device for containers |
US4085861A (en) * | 1974-01-18 | 1978-04-25 | Ruff Stanley L | Insulating drink-through closure lids for potable open-top containers |
US4484691A (en) * | 1975-11-03 | 1984-11-27 | Duracell Inc. | Pressure release device |
US4081103A (en) * | 1976-03-26 | 1978-03-28 | Allen Peter Zoellick | Cover for drinking containers |
US4244490A (en) * | 1979-08-06 | 1981-01-13 | Klein Gerald B | Conical can end with push down gate |
US4262815A (en) * | 1980-03-10 | 1981-04-21 | Klein Gerald B | Conical can end with a gate and opening tab at the cone apex |
USD758572S1 (en) * | 2014-06-20 | 2016-06-07 | Integrated Healing Technologies, Llc. | Wound drain dome |
Also Published As
Publication number | Publication date |
---|---|
DE1184231B (en) | 1964-12-23 |
GB904078A (en) | 1962-08-22 |
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