US3756389A - Multiple compartment package with frangible internal barrier means - Google Patents

Multiple compartment package with frangible internal barrier means Download PDF

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Publication number
US3756389A
US3756389A US00174316A US3756389DA US3756389A US 3756389 A US3756389 A US 3756389A US 00174316 A US00174316 A US 00174316A US 3756389D A US3756389D A US 3756389DA US 3756389 A US3756389 A US 3756389A
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package
barrier
envelope
compartments
barrier sheet
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Expired - Lifetime
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US00174316A
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F Firth
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Hexcel Corp
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Individual
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Assigned to HEXCEL CORPORATION reassignment HEXCEL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: APPLIED PLASTICS CO., INC. A CA CORP
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    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3261—Flexible containers having several compartments
    • B65D81/3266—Flexible containers having several compartments separated by a common rupturable seal, a clip or other removable fastening device

Definitions

  • Prior package of the above type have in general lacked the unusually advantageous features of construction, mode of operation and results which characterize the present invention. For example, prior packages have suffered from excessive complexity of construction and manufacture as well as difficulty of use.
  • the new package comprises an envelope and barrier means forming compartments at opposite sides of the barrier means, the latter comprising at least one frangible sheet extending within the envelope in position to be ruptured between the compartments in response to manual tension application, or shear force applied manually through the flexible envelope.
  • the barrier may be peripherally sealed to the envelope, for example by bonding or heat sealing a plastic envelope to the barrier sheet;
  • the barrier may consist of metallic foil (which may or may not be previously treated to enhance adhesion, for example by radiation means or by a sealable coating) or other suitable material;
  • the envelope may consist of plastic material, as for example polyethylene, butyl or other suitable flexible film or combination thereof.
  • the barrier may comprise multiple frangible sheets extending between envelope sections to form separate compartments, such barriers being selectively rupturable; and peripheral portions of the barrier alone, or together with the envelope, may form pull tabs to be manually grasped for oppositely directed pulling to create the rupture producing tension as described.
  • the barrier may be locally weakened between the compartments to rupture at predetermined locations, and the envelope may consist of sections with intumed ends attached to the barrier, as will be seen.
  • a flexible package 10 includes an.
  • the envelope 11 and barrier means such a sheet 12, forming separate compartments l3 and 14 at opposite sides of the barrier means or membrane.
  • the envelope may comprise like sections 11a and 11b at opposite sides of the barrier, each section peripherally bonded thereto, as for example by heat sealing, or adhesive attachment at 15.
  • the membrane 12 may consist; for example, of metallic foil (say, aluminum, etc), or of a polymer (polyester film, Mylar, etc) to which a sealable coating such as polyethylene or adhesive has been applied; and the envelope may consist of polyethylene or other plastic sheet material, transparent or translucent.
  • the barrier membrane is frangible and positioned to be ruptured between the compartments in response to application of manually exerted tension or transverse shear.
  • tension may be applied to the tabs 16 and 17 in the direction of arrows l8 and 19 to produce the rupture at tear location 20; and, for this purpose, the membrane may be thinned or weakened at that location prior to assembly of the package.
  • FIG. 3 shows the package configuration after rupture of the membrane, with communication established between the two compartments l3 and 14 via the gap 21 between the membrane sections 12a and 12b. Accordingly, previously separated fluent or flowable materials in the compartments may then be thoroughly mixed with the package remaining closed, as by manual kneading of the envelope.
  • the materials may consist of resin components (liquid or powder) which polymerize only after mixing; foodstuffs which may be mixed in the package just prior to serving after heating of the package in hot water (meat and sauce, vegetables and sauce, etc); and any other substances which are to be subjected to controlled mixing, say after heating or without temperature change.
  • the rupture may alternatively be produced by grasping the package with two hands so as to grip the membrane through the envelope material, and exerting tension on the membrane. After thorough mixing, the package may be cut to discharge the contents.
  • FIG. 4 shows another form of the package in which envelope sections 25a and 25b are reversely turned at one end of the membrane for attachment thereto, as by bonding, heat sealing, etc. at 26.
  • the barrier membrane 29 ruptures as at 30 in FIG. 5.
  • FIG. 6 illustrates a multiple compartmented package with frangible barrier membranes 32 and 33 cooperating with envelope sections 34a, 34b and 340 to form three compartments 35-37.
  • the barrier may be selectively ruptured, as by pulling on tabs 38 and 39, and tabs 40 and 41, to thereby selectively mix the contents of the compartments 35 and 36, or the contents of compartments 36 and 37, or the contents of all three compartments.
  • the package may be opened after such mixing in situ, to discharge the contents.
  • a flexible package for storing multiple fluent materials in separate compartments and for ultimate mixing in the package comprising a. an envelope and a barrier sheet forming the compartments at opposite sides of the barrier sheet,
  • the barrier sheet having a locally thinned section extending within the envelope in position to be rupcludes a sealable coating on the sheet.
  • barrier sheet consists of a scalable polymer film.
  • the package of claim 1 including said fluent materials in said compartments and consisting of resin components which polymerize after mixing.
  • barrier sheet comprises multiple parallel sheets extending between multiple envelope sections to form therewith multiple compartments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Package Specialized In Special Use (AREA)

Abstract

A flexible package for storing multiple fluent materials in separate compartments and for ultimate mixing in the package, comprises: A. AN ENVELOPE AND BARRIER MEANS FORMING THE COMPARTMENTS AT OPPOSITE SIDES OF THE BARRIER MEANS, B. THE BARRIER MEANS COMPRISING AT LEAST ONE FRANGIBLE SHEET EXTENDING WITHIN THE ENVELOPE IN POSITION TO BE RUPTURED BETWEEN THE COMPARTMENTS IN RESPONSE TO MANUAL TENSION APPLICATION THERETO.

Description

United States Patent [1 1 Firth Sept. 4, 1973 MULTIPLE COMPARTMENT PACKAGE WITH FRANGIBLE INTERNAL BARRIER MEANS [76] lnventor: Francis George Firth, 130 Penn St.,
El Segundo, Calif. 90245 221 Filed: Aug. 24,1971
21 Appl. No.: 174,316
[52] US. Cl 206/47 A [51] Int. Cl B65d 25/08, B65d 81/32 [58] Field of Search 206/47 A [56] References Cited UNITED STATES PATENTS 3,539,794 11/1970 Rauhut et al. 206/47 A 3,294,227 12/1966 Schneider et al.
3,255,872 6/1966 Long et al 206/47 A 2,885,104 5/1959 Greenspan 206/47 A 3,429,429 2/ 1969 Poitras 206/47 A 3,095,291 6/1963 Robbins 206/47 A Primary Examiner-William T. Dixson, Jr. Att0rneyWhite, Haefliger and Bachand [5 7 ABSTRACT 7 Claims, 6 Drawing Figures MULTIPLE COMPARTMENT PACKAGE WITH FRANGIBLE INTERNAL BARRIER MEANS BACKGROUND OF THE INVENTION This invention relates generally to multiple componcnt packaging, and more particularly concerns a flexible package capable of being controllably internally ruptured to enable mixing of the multiple components, as desired.
Prior package of the above type have in general lacked the unusually advantageous features of construction, mode of operation and results which characterize the present invention. For example, prior packages have suffered from excessive complexity of construction and manufacture as well as difficulty of use.
SUMMARY OF THE INVENTION It is a major object of the invention to provide a multiple component, internally rupturable package overcoming the above difficulties and objections. Basically, the new package comprises an envelope and barrier means forming compartments at opposite sides of the barrier means, the latter comprising at least one frangible sheet extending within the envelope in position to be ruptured between the compartments in response to manual tension application, or shear force applied manually through the flexible envelope. As will appear, the barrier may be peripherally sealed to the envelope, for example by bonding or heat sealing a plastic envelope to the barrier sheet; the barrier may consist of metallic foil (which may or may not be previously treated to enhance adhesion, for example by radiation means or by a sealable coating) or other suitable material; and the envelope may consist of plastic material, as for example polyethylene, butyl or other suitable flexible film or combination thereof.
Further, the barrier may comprise multiple frangible sheets extending between envelope sections to form separate compartments, such barriers being selectively rupturable; and peripheral portions of the barrier alone, or together with the envelope, may form pull tabs to be manually grasped for oppositely directed pulling to create the rupture producing tension as described. Also, the barrier may be locally weakened between the compartments to rupture at predetermined locations, and the envelope may consist of sections with intumed ends attached to the barrier, as will be seen.
These and other objects and advantages of the invention, as well as the details of illustrative embodiment, will be more fully understood from the following description and drawings, in which:
DRAWING DESCRIPTION DETAILED DESCRIPTION In FIGS. 1 and 2, a flexible package 10 includes an.
envelope 11 and barrier means, such a sheet 12, forming separate compartments l3 and 14 at opposite sides of the barrier means or membrane. The envelope may comprise like sections 11a and 11b at opposite sides of the barrier, each section peripherally bonded thereto, as for example by heat sealing, or adhesive attachment at 15. The membrane 12 may consist; for example, of metallic foil (say, aluminum, etc), or of a polymer (polyester film, Mylar, etc) to which a sealable coating such as polyethylene or adhesive has been applied; and the envelope may consist of polyethylene or other plastic sheet material, transparent or translucent.
In accordance with the invention, the barrier membrane is frangible and positioned to be ruptured between the compartments in response to application of manually exerted tension or transverse shear. For example, tension may be applied to the tabs 16 and 17 in the direction of arrows l8 and 19 to produce the rupture at tear location 20; and, for this purpose, the membrane may be thinned or weakened at that location prior to assembly of the package. FIG. 3 shows the package configuration after rupture of the membrane, with communication established between the two compartments l3 and 14 via the gap 21 between the membrane sections 12a and 12b. Accordingly, previously separated fluent or flowable materials in the compartments may then be thoroughly mixed with the package remaining closed, as by manual kneading of the envelope. Such materials are indicated at A and B in FIG. 2. Merely as illustrative, the materials may consist of resin components (liquid or powder) which polymerize only after mixing; foodstuffs which may be mixed in the package just prior to serving after heating of the package in hot water (meat and sauce, vegetables and sauce, etc); and any other substances which are to be subjected to controlled mixing, say after heating or without temperature change.
The rupture may alternatively be produced by grasping the package with two hands so as to grip the membrane through the envelope material, and exerting tension on the membrane. After thorough mixing, the package may be cut to discharge the contents.
FIG. 4 shows another form of the package in which envelope sections 25a and 25b are reversely turned at one end of the membrane for attachment thereto, as by bonding, heat sealing, etc. at 26. Upon manual pulling of tabs 27 and 28 in opposite directions, the barrier membrane 29 ruptures as at 30 in FIG. 5.
FIG. 6 illustrates a multiple compartmented package with frangible barrier membranes 32 and 33 cooperating with envelope sections 34a, 34b and 340 to form three compartments 35-37. The barrier may be selectively ruptured, as by pulling on tabs 38 and 39, and tabs 40 and 41, to thereby selectively mix the contents of the compartments 35 and 36, or the contents of compartments 36 and 37, or the contents of all three compartments.
In each of FIGS. 4 and 6, the package may be opened after such mixing in situ, to discharge the contents.
I claim:
1. A flexible package for storing multiple fluent materials in separate compartments and for ultimate mixing in the package, comprising a. an envelope and a barrier sheet forming the compartments at opposite sides of the barrier sheet,
b. the barrier sheet having a locally thinned section extending within the envelope in position to be rupcludes a sealable coating on the sheet.
4. The package of claim 1 wherein the barrier sheet consists of a scalable polymer film.
5. The package of claim 1 including said fluent materials in said compartments and consisting of resin components which polymerize after mixing.
6. The package of claim 1 wherein the barrier sheet comprises multiple parallel sheets extending between multiple envelope sections to form therewith multiple compartments.
7. The package of claim 1 wherein the edge portions of the envelope sections are turned inwardly for attachment to the barrier means.

Claims (6)

1. A flexible package for storing multiple fluent materials in separate compartments and for ultimate mixing in the package, comprising a. an envelope and a barrier sheet forming the compartments at opposite sides of the barrier sheet, b. the barrier sheet having a locally thinned section extending within the envelope in position to be ruptured at said section thinning between the compartments in response to manual tension application thereof, c. the barrier sheet defining externally accessible pull tabs in general alignment with said thinned section and at opposite ends of the barrier sheet, the local thinning extending transversely in the barrier sheet, and d. the envelope comprising plastic sheet sections confined at opposite sides of the barrier sheet and peripherally bonded thereto.
2. The package of claim 1 wherein the barrier consists of metallic foil. 3. The package of claim 1 wherein the barrier includes a sealable coating on the sheet.
4. The package of claim 1 wherein the barrier sheet consists of a sealable polymer film.
5. The package of claim 1 including said fluent materials in said compartments and consisting of resin components which polymerize after mixing.
6. The package of claim 1 wherein the barrier sheet comprises multiple parallel sheets extending between multiple envelope sections to form therewith multiple compartments.
7. The package of claim 1 wherein the edge portions of the envelope sections are turned inwardly for attachment to the barrier means.
US00174316A 1971-08-24 1971-08-24 Multiple compartment package with frangible internal barrier means Expired - Lifetime US3756389A (en)

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US3935355A (en) * 1971-12-28 1976-01-27 Hans Georg Kuhn Wrapping material
US3940905A (en) * 1973-06-25 1976-03-02 Perry 3Rd Thomas William Method and apparatus for making a thermal compress
US4265216A (en) * 1978-12-06 1981-05-05 Raychem Corporation Self-contained exothermic heat recoverable chemical heater
US4462224A (en) * 1983-07-11 1984-07-31 Minnesota Mining And Manufacturing Company Instant hot or cold, reusable cold pack
US4496046A (en) * 1983-09-15 1985-01-29 Baxter Travenol Laboratories, Inc. Multiple chamber container with inner diaphragm and intermediate chamber
US4519499A (en) * 1984-06-15 1985-05-28 Baxter Travenol Laboratories, Inc. Container having a selectively openable seal line and peelable barrier means
WO1986000660A1 (en) * 1984-07-12 1986-01-30 Specialised Polyurethane Applications Pty. Ltd. Borehole plug and method
US4576283A (en) * 1983-01-25 1986-03-18 Bernard Fafournoux Bag for vacuum packaging of articles
US4608043A (en) * 1984-06-22 1986-08-26 Abbott Laboratories I.V. fluid storage and mixing system
US4629080A (en) * 1984-04-12 1986-12-16 Baxter Travenol Laboratories, Inc. Container such as a nursing container, having formed enclosure chamber for a dispensing member
US4632244A (en) * 1986-02-19 1986-12-30 Boris Landau Multiple chamber flexible container
US4673099A (en) * 1982-08-23 1987-06-16 Wells Robert A Reclosable self-opening can end
US4750615A (en) * 1986-05-06 1988-06-14 Intecser S.A. Apparatus to maintain separate until the moment of use, two different substances within a container, particularly two-component resins
AU579395B2 (en) * 1984-07-12 1988-11-24 Du Pont (Australia) Limited Borehole plug for decking explosives
US4808006A (en) * 1985-12-06 1989-02-28 Intecser S.A. Device to maintain separate until the moment of use and then to mix two different substances within a container, particularly two-component resins
US4846278A (en) * 1986-05-21 1989-07-11 Du Pont (Australia) Ltd. Borehole plug and method
US4850729A (en) * 1987-04-07 1989-07-25 David N. Kramer Decontaminating composition and delivery system therefor
GB2214592A (en) * 1987-11-25 1989-09-06 Chemfix Pty Ltd Cartridge for securing fixing elements in substrate and method of forming the same
US4883675A (en) * 1988-11-30 1989-11-28 The Procter & Gamble Company Flexible package having main compartment and ancillary compartment
US4998827A (en) * 1987-05-20 1991-03-12 Walter Holzer Cold indicator for controlling the cooling or freezing of foods, medicines and the like
EP0468880A1 (en) * 1990-07-24 1992-01-29 Atco Device for conditining oxygen absorbers and/or devices for salting-out CO2
WO1993008095A1 (en) * 1991-10-24 1993-04-29 Rhone-Poulenc Agrochimie Water soluble package
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Cited By (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935355A (en) * 1971-12-28 1976-01-27 Hans Georg Kuhn Wrapping material
US3940905A (en) * 1973-06-25 1976-03-02 Perry 3Rd Thomas William Method and apparatus for making a thermal compress
US4265216A (en) * 1978-12-06 1981-05-05 Raychem Corporation Self-contained exothermic heat recoverable chemical heater
US4673099A (en) * 1982-08-23 1987-06-16 Wells Robert A Reclosable self-opening can end
US4576283A (en) * 1983-01-25 1986-03-18 Bernard Fafournoux Bag for vacuum packaging of articles
US4462224A (en) * 1983-07-11 1984-07-31 Minnesota Mining And Manufacturing Company Instant hot or cold, reusable cold pack
US4496046A (en) * 1983-09-15 1985-01-29 Baxter Travenol Laboratories, Inc. Multiple chamber container with inner diaphragm and intermediate chamber
EP0157829A1 (en) * 1983-09-15 1985-10-16 BAXTER INTERNATIONAL INC. (a Delaware corporation) Compartment mixing container having breakable connection between compartments
US4770295A (en) * 1983-09-15 1988-09-13 Baxter Travenol Laboratories, Inc. Selectively openable seal line and containers having same
EP0157829A4 (en) * 1983-09-15 1988-02-08 Baxter Travenol Lab Compartment mixing container having breakable connection between compartments.
US4629080A (en) * 1984-04-12 1986-12-16 Baxter Travenol Laboratories, Inc. Container such as a nursing container, having formed enclosure chamber for a dispensing member
US4711359A (en) * 1984-04-12 1987-12-08 Baxter Travenol Laboratories, Inc. Container such as a nursing container, having protection compartment for dispensing member
US4519499A (en) * 1984-06-15 1985-05-28 Baxter Travenol Laboratories, Inc. Container having a selectively openable seal line and peelable barrier means
US4608043A (en) * 1984-06-22 1986-08-26 Abbott Laboratories I.V. fluid storage and mixing system
WO1986000660A1 (en) * 1984-07-12 1986-01-30 Specialised Polyurethane Applications Pty. Ltd. Borehole plug and method
AU579395B2 (en) * 1984-07-12 1988-11-24 Du Pont (Australia) Limited Borehole plug for decking explosives
US4808006A (en) * 1985-12-06 1989-02-28 Intecser S.A. Device to maintain separate until the moment of use and then to mix two different substances within a container, particularly two-component resins
US4632244A (en) * 1986-02-19 1986-12-30 Boris Landau Multiple chamber flexible container
US4750615A (en) * 1986-05-06 1988-06-14 Intecser S.A. Apparatus to maintain separate until the moment of use, two different substances within a container, particularly two-component resins
US4846278A (en) * 1986-05-21 1989-07-11 Du Pont (Australia) Ltd. Borehole plug and method
US4850729A (en) * 1987-04-07 1989-07-25 David N. Kramer Decontaminating composition and delivery system therefor
US4998827A (en) * 1987-05-20 1991-03-12 Walter Holzer Cold indicator for controlling the cooling or freezing of foods, medicines and the like
GB2214592B (en) * 1987-11-25 1991-09-11 Chemfix Pty Ltd Cartridge for use in securing fixing element in substrate and method of forming the same
GB2214592A (en) * 1987-11-25 1989-09-06 Chemfix Pty Ltd Cartridge for securing fixing elements in substrate and method of forming the same
US4883675A (en) * 1988-11-30 1989-11-28 The Procter & Gamble Company Flexible package having main compartment and ancillary compartment
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