US3307746A - Frangible opening device for containers - Google Patents

Frangible opening device for containers Download PDF

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Publication number
US3307746A
US3307746A US467620A US46762065A US3307746A US 3307746 A US3307746 A US 3307746A US 467620 A US467620 A US 467620A US 46762065 A US46762065 A US 46762065A US 3307746 A US3307746 A US 3307746A
Authority
US
United States
Prior art keywords
container
opening device
knob member
containers
end surface
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
Application number
US467620A
Other languages
English (en)
Inventor
Edwards Bryant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to US467620A priority Critical patent/US3307746A/en
Priority to CH902666A priority patent/CH449448A/fr
Priority to BE683027D priority patent/BE683027A/xx
Priority to DEI31159A priority patent/DE1298442B/de
Priority to NL6608910A priority patent/NL6608910A/xx
Priority to GB28756/66A priority patent/GB1141650A/en
Priority to DK333766AA priority patent/DK116421B/da
Priority to SE8766/66A priority patent/SE315829B/xx
Application granted granted Critical
Publication of US3307746A publication Critical patent/US3307746A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • B65D17/32—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 having non-detachable members or portions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/927—Means for tearing or breaking rigid or semirigid thermoplastic container

Definitions

  • the present invention relates to a new and improved container opening device, and more particularly, to a container opening device of the frangible or rupturable variety for use with a thin wall thermoplastic container element to afford access to the container contents.
  • a container element which may either be'a closure or a receptacle portion, may initially be formed with a projection or protuberance which, upon pressure being applied thereto, will cause tearing of discrete areas in the vicinity of the projection or protuberance to expose one or more dispensing apertures.
  • a container element which may either be'a closure or a receptacle portion, may initially be formed with a projection or protuberance which, upon pressure being applied thereto, will cause tearing of discrete areas in the vicinity of the projection or protuberance to expose one or more dispensing apertures.
  • Another object of the present invention is to provide a container opening device of the aforenoted type which prevents accidental opening of the container and permits stacking of containers one above the other.
  • Still another object of the present invention is the provision of a container opening device of the foregoing type which is leakproof prior to operation, readily removable from the container when it is desired to gain access to the container contents, and is reclosable.
  • a further object of the present invention is the provision of a container opening device which provides one or more dispensing apertures primarily, although not exclusively, for the insertion of a drinking straw or for pouring of the container contents therethrough.
  • Yet another object of the present invention is the provision of a container opening device of the type discussed which can be formed during the container manufacture by well known thermo-forming techniques without great difficulty or expense.
  • thermoplastic container element having a depression or cavity therein, and in which depression or cavity there is provided a protuberance or knob member of a size enabling manual grasping thereof such that upon pulling the protuberance or knob member, discrete material areas in the vicinity of the depression or cavity are ruptured or torn to afiord' access to the container contents.
  • FIG. 1 is a fragmentary perspective view of a thermoplastic container element incorporating my novel manually operable container opening device
  • FIG. 2 is a fragmentary sectional view showing a pair of container members or elements in stacked relationship
  • FIG. 3 is a top plan view of the container and its opening device as seen in FIG. 1, but slightly reduced in size in relation thereto;
  • FIG. 4 is a fragmentary perspective View of the container and its opening device as seen in FIG. 1 of the drawing after the same has been operated to expose dispensing apertures;
  • FIG. 5 is a fragmentary sectional view of the container and its opening device as seen in FIG. 1 of the drawing;
  • FIG. 6 is a fragmentary sectional view of the container and its opening device as seen in FIG. 4 of the drawing.
  • FIG. 7 is a modified form of my novel container opening device which comes within the purview of the present invention.
  • thermoplastic container element or member 10 polystyrene being one preferred example, which may either be a closure or receptacle portion.
  • the container element 10 shown in FIG. 1 of the drawing is of the closed top receptacle variety having a top wall or end surface 12, and a circumferentially continuous side wall 14, here shown to be cylindrical in form, which depends from the top wall or end surface 12 and extends downwardly toward an open bottom portion (not shown). Closed top receptacle portions are filled through the open bottom, and when this has been accomplished, a bottom closure element is applied to the receptacle portion to hold the container contents therewithin.
  • the dotted or phantom lines shown in FIG. 1 are intended to depict the bottom of a lid or closure rim to make it apparent that the manually operable container opening device, now to be discussed, can be used either with a closure or receptacle portion.
  • the manually operable container opening device 20 in FIG. 1 of the drawing comprises an inverted frusto-pyramidal shaped aaomae Wall structure 22 formed in the end surface 12, and a hollow knob member in the form of an oppositely directed protuberance or projection 24.
  • the frusto-pyramidal shaped wall structure 22 includes four downwardly and inwardly inclined side walls 26 which are integrally joined at their lower ends to the bottom wall portion 28.
  • Adjacent side walls 26 are disposed at an angle of approximately 90 degrees to each other to form corner po-rtions 30 extending therebetween.
  • corner po-rtions 30 extending therebetween.
  • a frusto-pyramidal shaped wall structure 22 there will be four such corner portions which will expose a like number of dispensing apertures as will now be discussed.
  • the knob member 24 When it is desired to gain access to the container contents, the knob member 24 should be gripped and pulled toward and through the plane of the end surface 12. As the knob member 24 is moved towards and eventually beyond the end surface 12, the material adjacent the corner portions 36' where they meet the end surface 12 such as at 32 will first be ruptured since concentrated loads, initially and substantially simultaneously applied to the corner portions 30, will first be directed or transmitted to the material portions 32. In other words, loads derived from the outward pulling of knob member 24 will be transmitted along the corners St to the areas or portions 32 which will be the first to yield or rupture due to the concentration of load at these points.
  • the concentrated loads are sufficient to cause rupture of the material portions 32 at the upper end of the corner portions 39, after which movement of the knob member through the plane of the end surface 12 causes rupture of the material adjacent the corner portions 39 to form the dispensing apertures 34.
  • the openings 34 which are formed are diamond-shaped, and are each surrounded by portions of the side walls and end surface. It is also to be noted that the central location of knob member 24 in this embodiment enables uniform pressure to be applied through each of the corner portions 34 when the knob member is pulled upwardly.
  • the side walls 22 act as struts preventing the return of the bottom Wall portion 28 so that the dispensing apertures 34 will be maintained in an open position until the knob member is returned to the position shown in FIG. 1. If it is desired to subsequently reclose the container, it is a relatively simple matter to merely depress the knob member 24 to the position shown in FIG. 1, the effect of which will close the opening between adjacent side wall portions 22 as will be apparent.
  • the knob member 24 has its upper or top wall slightly below the plane of the end surface 12 to permit stacking of adjacent container elements above each other as seen in FIG. 2 without interference from the knob member. If desired, the upper or top wall of the knob member 24 may lie wholly within the confines of the plane containing the end wall 12, but it should not project above the end surface 12 unless the bottom wall portion of an adjacent container is of the indented or false bottom variety.
  • FIG. 6 of the drawing shows the degree to which the knob member 24 may be projected above the plane of the end surface 12, and the relative height of the dispensing apertures 34 in relation thereto. It will be understood that the size of the dispensing apertures 34 is directly dependent upon the spacing between the side walls 22 and the depth of the bottom wall portion 28 in relation to the end surface 12.
  • surrounding wall structure 22 is designed to provide a plurality of dispensing apertures 34, it will be apparent that the principles of the present invention apply to wall structures of any shape or configurations having one or more corner portions 36 or similar structure. As an example, a modified form of the invention is shown in FIG. 7 of the drawing,
  • thermoplastic container element 10a has a manually operable container opening device 20a similar to the one just discussed with the exception that the surrounding wall structure 22a is formed to provide only a single corner portion 30a.
  • the knob When the knob is operated, the material portions 32a, where the upper end of the corner 38a joins the end surface 12a, and then the material portions adjacent the corner 30a will separate in the same manner as the first embodiment discussed.
  • the knob member 24 in the FIGS. 1-6 embodiment and the knob member 24a in the FIG. 7 embodiment may be of any desired shape, but must be sufliciently enlarged to enable manual grasping thereof.
  • the knob members are preferably initially formed as an integral part of the container element to facilitate manufacture and reduce cost, but it will be understood that they may be subsequently attached to the bottom wall portions of the surrounding wall structure in any suitable manner.
  • the knob member has an outer knurled surface to facilitate grasping thereof, but any other means, including the shape or configuration of the knob member, may be used to enhance the gripping thereof by a user.
  • the present invention contemplates a new and improved manually operable container opening device for containers of the disposable or throw-away variety.
  • the manually operable container opening device can be applied to any part of a container body or element, but preferably is situated in the end surface of a closure or receptacle portion.
  • the container opening means Prior to being operated, the container opening means is positioned below the plane of the surface from which it extends to permit stacking of adjacent container elements while at the same time preventing inadvertent actuation thereof such as might occur during container stacking or handling.
  • the construction of the container opening means facilitates quick and easy operation thereof to expose one or more dispensing. apertures, and also enables subsequent reclosure of the container if desired.
  • a one-piece seamless thermoplastic container member having an inverted frusto-pyramidal shaped wall structure formed in a planar end wall surface and including a bottom and side walls extending upwardly and outwardly therefrom and terminating in an open upper end in the vicinity of the plane of said end surface, and a hollow, closed top knob member joined to said bottom wall at a location generally equally spaced from the side walls of the frusto-pyramidal shaped wall structure and extending upwardly toward said end wall surface, said knob member having a height less than the depth or" the side walls to permit stacking of similarly configured container members without accidental operation of said knob member, said knob member including means facilitating grasping thereof and being of a size to enable manual grasping such that when moved toward said planar end wall surface, the surrounding wall structure is severed in the vicinity of the juncture of said side walls to expose a plurality of elongated openings for dispensing purposes, the arrangement of the aforementioned elements also causing severing of the planar end wall surface in the vicinity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
US467620A 1965-06-28 1965-06-28 Frangible opening device for containers Expired - Lifetime US3307746A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US467620A US3307746A (en) 1965-06-28 1965-06-28 Frangible opening device for containers
CH902666A CH449448A (fr) 1965-06-28 1966-06-22 Paroi terminale d'un récipient thermoplastique munie d'un dispositif d'ouverture
BE683027D BE683027A (is") 1965-06-28 1966-06-23
DEI31159A DE1298442B (de) 1965-06-28 1966-06-24 Behaelterteil aus thermoplastischem Kunststoff mit einem zum OEffnen des Behaelters aus seiner Ausgangslage durchstuelpbaren Formteil in der Stirnwand des Behaelters
NL6608910A NL6608910A (is") 1965-06-28 1966-06-27
GB28756/66A GB1141650A (en) 1965-06-28 1966-06-27 Frangible opening devices for containers
DK333766AA DK116421B (da) 1965-06-28 1966-06-28 Beholder af plast med en åbneindretning i en i hovedsagen plan endevæg.
SE8766/66A SE315829B (is") 1965-06-28 1966-06-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US467620A US3307746A (en) 1965-06-28 1965-06-28 Frangible opening device for containers

Publications (1)

Publication Number Publication Date
US3307746A true US3307746A (en) 1967-03-07

Family

ID=23856419

Family Applications (1)

Application Number Title Priority Date Filing Date
US467620A Expired - Lifetime US3307746A (en) 1965-06-28 1965-06-28 Frangible opening device for containers

Country Status (8)

Country Link
US (1) US3307746A (is")
BE (1) BE683027A (is")
CH (1) CH449448A (is")
DE (1) DE1298442B (is")
DK (1) DK116421B (is")
GB (1) GB1141650A (is")
NL (1) NL6608910A (is")
SE (1) SE315829B (is")

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935961A (en) * 1974-09-30 1976-02-03 Bennett Robert A Unitary beverage container
US3960298A (en) * 1972-10-25 1976-06-01 The Cornelius Company Container assembly for use with a separator dispenser
US4008824A (en) * 1974-04-09 1977-02-22 Charles Simon Renoux Container closure having tear-away construction
USD263805S (en) 1980-01-21 1982-04-13 King Seeley Thermos Co. Dispensing closure for a container
US4484691A (en) * 1975-11-03 1984-11-27 Duracell Inc. Pressure release device
US4753366A (en) * 1987-12-28 1988-06-28 Ritter Russell H Package for confection coated fruit, specifically, apples
US4898299A (en) * 1988-03-03 1990-02-06 Imperial Cup Corporation Push and drink lid
US4925051A (en) * 1988-03-03 1990-05-15 Imperial Cup Corporation Push and drink lid with pour spout
US6488170B1 (en) 2000-11-17 2002-12-03 Tim Johnson Design, Inc. Disposable, rolled rim container and dome-shaped cover
US20040053760A1 (en) * 2001-01-04 2004-03-18 Jung-Min Lee Container with a foldable portion and method for manufacturing the same
US20090012485A1 (en) * 2007-03-23 2009-01-08 Michaels Thomas L Fluid collection and disposal system having interchangeable collection and other features and methods relating thereto
US20110118680A1 (en) * 2009-07-15 2011-05-19 Cardinal Health, Inc. Fluid collection and disposal system and related methods
US20110178482A1 (en) * 2007-03-23 2011-07-21 Cardinal Health, Inc. Fluid collection and disposal system and related methods
US8025173B2 (en) 2006-09-07 2011-09-27 Allegiance Corporation Collapsible canister liner for medical fluid collection
US10759571B2 (en) * 2017-01-11 2020-09-01 Sonoco Development, Inc. Container for produce storage, packing and transport

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8621022A0 (it) * 1986-07-03 1986-07-03 Luigi Bocchi Perfezionamenti a contenitori di bevande gassate, ottenuti da materiale plastico termoformato econ coperchio termosaldato compensatori di pressione.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614734A (en) * 1950-07-26 1952-10-21 Frederick J Spencer Shaker-dispenser
US2893611A (en) * 1956-12-24 1959-07-07 Stauffer Chemical Co Combined spout and closure structure
US2898018A (en) * 1955-10-26 1959-08-04 John E Borah Container spout
US3003668A (en) * 1961-01-31 1961-10-10 Plastic Packaging Ltd Containers and closures therefor
US3042271A (en) * 1959-07-30 1962-07-03 Hedwin Corp Container with retractable projectable spout
US3076584A (en) * 1958-12-03 1963-02-05 Plastic Packaging Ltd Fluid containers or cartons
US3204827A (en) * 1962-03-30 1965-09-07 Krautkramer Adam Spout seal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904767A (en) * 1960-05-16 1962-08-29 Plastic Packaging Ltd Containers and closures therefor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614734A (en) * 1950-07-26 1952-10-21 Frederick J Spencer Shaker-dispenser
US2898018A (en) * 1955-10-26 1959-08-04 John E Borah Container spout
US2893611A (en) * 1956-12-24 1959-07-07 Stauffer Chemical Co Combined spout and closure structure
US3076584A (en) * 1958-12-03 1963-02-05 Plastic Packaging Ltd Fluid containers or cartons
US3042271A (en) * 1959-07-30 1962-07-03 Hedwin Corp Container with retractable projectable spout
US3003668A (en) * 1961-01-31 1961-10-10 Plastic Packaging Ltd Containers and closures therefor
US3204827A (en) * 1962-03-30 1965-09-07 Krautkramer Adam Spout seal

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960298A (en) * 1972-10-25 1976-06-01 The Cornelius Company Container assembly for use with a separator dispenser
US4008824A (en) * 1974-04-09 1977-02-22 Charles Simon Renoux Container closure having tear-away construction
US3935961A (en) * 1974-09-30 1976-02-03 Bennett Robert A Unitary beverage container
US4484691A (en) * 1975-11-03 1984-11-27 Duracell Inc. Pressure release device
USD263805S (en) 1980-01-21 1982-04-13 King Seeley Thermos Co. Dispensing closure for a container
US4753366A (en) * 1987-12-28 1988-06-28 Ritter Russell H Package for confection coated fruit, specifically, apples
US4898299A (en) * 1988-03-03 1990-02-06 Imperial Cup Corporation Push and drink lid
US4925051A (en) * 1988-03-03 1990-05-15 Imperial Cup Corporation Push and drink lid with pour spout
US6488170B1 (en) 2000-11-17 2002-12-03 Tim Johnson Design, Inc. Disposable, rolled rim container and dome-shaped cover
US20050104262A1 (en) * 2001-01-04 2005-05-19 Lee Jung M. Container with a foldable portion and method for manufacturing the same
US7255826B2 (en) 2001-01-04 2007-08-14 Jung-Min Lee Container with a foldable portion and method for manufacturing the same
US20040053760A1 (en) * 2001-01-04 2004-03-18 Jung-Min Lee Container with a foldable portion and method for manufacturing the same
US8025173B2 (en) 2006-09-07 2011-09-27 Allegiance Corporation Collapsible canister liner for medical fluid collection
US9770540B2 (en) 2006-09-07 2017-09-26 Allegiance Corporation Collapsible canister liner for medical fluid collection
US9889239B2 (en) 2007-03-23 2018-02-13 Allegiance Corporation Fluid collection and disposal system and related methods
US20090012485A1 (en) * 2007-03-23 2009-01-08 Michaels Thomas L Fluid collection and disposal system having interchangeable collection and other features and methods relating thereto
US20110178482A1 (en) * 2007-03-23 2011-07-21 Cardinal Health, Inc. Fluid collection and disposal system and related methods
US10252856B2 (en) 2007-03-23 2019-04-09 Allegiance Corporation Fluid collection and disposal system having interchangeable collection and other features and methods relating thereof
US8500706B2 (en) 2007-03-23 2013-08-06 Allegiance Corporation Fluid collection and disposal system having interchangeable collection and other features and methods relating thereto
US9604778B2 (en) 2007-03-23 2017-03-28 Allegiance Corporation Fluid collection and disposal system having interchangeable collection and other features and methods relating thereto
US20110118680A1 (en) * 2009-07-15 2011-05-19 Cardinal Health, Inc. Fluid collection and disposal system and related methods
US8460256B2 (en) 2009-07-15 2013-06-11 Allegiance Corporation Collapsible fluid collection and disposal system and related methods
US10759571B2 (en) * 2017-01-11 2020-09-01 Sonoco Development, Inc. Container for produce storage, packing and transport

Also Published As

Publication number Publication date
DE1298442B (de) 1969-06-26
SE315829B (is") 1969-10-06
NL6608910A (is") 1966-12-29
BE683027A (is") 1966-12-01
GB1141650A (en) 1969-01-29
DK116421B (da) 1970-01-05
CH449448A (fr) 1967-12-31

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