US3195768A - Easy opening pull tab can end with wide tear strip - Google Patents

Easy opening pull tab can end with wide tear strip Download PDF

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Publication number
US3195768A
US3195768A US291415A US29141563A US3195768A US 3195768 A US3195768 A US 3195768A US 291415 A US291415 A US 291415A US 29141563 A US29141563 A US 29141563A US 3195768 A US3195768 A US 3195768A
Authority
US
United States
Prior art keywords
weakening line
pull tab
tear strip
container end
container
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
US291415A
Other languages
English (en)
Inventor
John S Bozek
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co 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 Continental Can Co Inc filed Critical Continental Can Co Inc
Priority to US291415A priority Critical patent/US3195768A/en
Priority to US335560A priority patent/US3247997A/en
Priority to GB18688/64A priority patent/GB1037336A/en
Priority to DEC33252A priority patent/DE1266655B/de
Priority to DE1964C0013088 priority patent/DE1922390U/de
Priority to NL6407360A priority patent/NL6407360A/xx
Priority to DK370364AA priority patent/DK116844B/da
Priority to BE656798D priority patent/BE656798A/xx
Application granted granted Critical
Publication of US3195768A publication Critical patent/US3195768A/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
    • B65D17/4011—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 for opening completely by means of a tearing tab
    • 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
    • B65D17/34—Arrangement or construction of pull or lift tabs
    • B65D17/347—Arrangement or construction of pull or lift tabs characterised by the connection between the tab and a detachable member or portion of the container
    • B65D17/353—Arrangement or construction of pull or lift tabs characterised by the connection between the tab and a detachable member or portion of the container the connecting means being integral with the tab or with the detachable member or portion
    • 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
    • B65D17/34—Arrangement or construction of pull or lift tabs
    • B65D17/36—Arrangement or construction of pull or lift tabs adapted for engagement with opening tools, e.g. slotted keys
    • B65D17/38—Arrangement or construction of pull or lift tabs adapted for engagement with opening tools, e.g. slotted keys with strip or tool guides
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49876—Assembling or joining with prestressing of part by snap fit

Definitions

  • Another problem encountered is the economical at tachment of a pull tab to the tear strip in a manner wherein a seal is maintained between the pull tab and the tear strip.
  • the third problem has been in the formation of a proper pull tab which is small enough to be confined within the normal recessed end of a container, such as a can, and at the same time be of sufiicient strength and size to be effectively gripped in a manner necessary to effect the tearing of the tear strip from the container end.
  • Another object of this invention is to provide a novel sheet metal pull tab which is reinforced by means of a central rib wherein the pull tab has a winged channel cross section, the rib being of an increased width adjacent one end of the pull tab and contoured for the reception of a head of a rivet utilized in the attachment of the pull tab to a tear strip.
  • Another object of this invention is to provide a sheet metal pull tab in accordance with the foregoing, wherein the end thereof remote from the end to which the rivet is attached is reversely curled and bowed transversely of the pull tab to form a grip portion which may be readily and securely gripped.
  • FIGURE 2 a container or can,- generally referred to by the numeral 15.
  • the can 15 is provided with a can end, generally referred to by the numeral 16.
  • the can end 16 is secured to a can body 17 of the can 15 in a conventional manner by means of a double seam 18.
  • the can end 16, in accordance with this invention, is of the easy opening type which does not require any opener to effect the opening thereof.
  • the can end is reinforced about a major portion of the weakening line 21 by the provision of an inwardly or downwardly projecting bead 25, as is best shown in FIGURE 2.
  • the bead 25 may flex to a certain degree should there be in inwardly directed force on the can in the vicinity of the seam 18, thus preventing the transfer of rupturing force to the can end 16 along the weakening line 21.
  • the pull tab 24 is formed of a flexible plastic material and includes an elongated body 28 which is provided at one end thereof with a downwardly projecting part 29 carrying a tubular plug 30.
  • the plug 39 is provided with a rounded lower end 31 which opens internally into a bore 32 and continues externally into a tapered portion 33).
  • the plug 39 is of a reduced cross section, as at 34, to define a shoulder 35.
  • the pull tab body 28 is provided with an upwardly projecting centering pin 47 which is co-axial with the plug 30 and may be suitably engaged by a pull tab applying tool (not shown) wherein centering of the plug 3t? with the tear strip opening may be assured during the application of the pull tab 24 to the tear strip 19.
  • the relative construction of the pull tab 24 and the can end 16 is such that the grip portion 39 of the pull tab is partially recessed within the recessed central portion 26 of the can end 16, and at the same time gripping of the grip portion 39 may be readily facilitated.
  • the can end is part of a can, generally referred to by the numeral 115 and in itself is referred to by the numeral 116.
  • the can end 115 is identical with the can end 16 with the exception of a minor variation in the construction of the tear strip thereof, the tear strip being referred to by the numeral 119. Since all other portions of the can 115 are identical with like portions of the can 15 with the exception of a pull tab, which is referred to by the numeral 120, like numerals will be given to like previously described parts.
  • the tear strip 119 is provided with an integral upstanding tubular rivet 12-1 which is crimped, as at 122, to define an enlarged head 123.
  • the rivet 121 passes through an opening 124 in the pull tab 129 and the head 123 serves to retain the pull tab 126 on the rivet 121.
  • the pull tab 12% is formed of sheet metal and is formed from a blank generally referred to by the numeral 125.
  • The'blank 125 includes a body portion 126 which is generally trapezoidal in outline and includes two diverging side edges 127, a narrow end 128 and a wide end 12?. Wings 13% and 131 are connected to the pull tab body 126 along the side edges 12'! of the end 128, respectively.
  • the body 126 for the major portion of the length thereof, is of a winged channel cross section, as is best shown in FIGURE 10.
  • the body 125 is provided with a longitudinally extending depressed rib 132 which is widened adjacent the end 129, as at 133, to provide clearance for the head 123 of the rivet 121.
  • the rib 132 has a base 134, as is shown in FIGURE 10.
  • the base 134 becomes very enlarged and extends the full width of the body 126 at the end 129 thereof.
  • the base 134 has the opening 124 formed therein.
  • the rib 132 reinforces the body 126 against bending transversely of the axis of the pull tab 120.
  • the pull tab 12% is further reinforced by means of the curling of the wings 139 to define longitudinally extending curled reinforcing edges 135.
  • the end of the pull tab 129 remote from the rivet 121 is transversely and upwardly bowed, as at 136. Part of this how is formed in the wing 131 and part is formed in the body 126. Immediately adjacent the body 136 the wing 131 is upwardly reversely curled to define a curled transverse enlargement 137 which, together with the body portion 136, defines a grip portion of the pull tab 12%).
  • the pull tab may be formed of relatively thin sheet metal and due to the specific configuration thereof, it will have sufiicient strength to resist bending when an upward force is directed thereupon during the initial tearing or breaking of the tear strip 119 along the starting line thereof. At the same time, the connection between the rivet 121 and the pull tab 120 will be sufficient to resist any accidental rupture of the pull tab 120 from the tear strip 119. At this time it is pointed out that the grip portion of the pull tab 129 overlies the inwardly ofiset central portion 24 of the can end and thus facilitates the gripping thereof.
  • the can end 116 has all of the structural advantages of the can end 16 and that the difference between the can end 116 as compared to the can end 16 is the difference-in pull tab construction and the manner of attaching the two pull tabs to their respec tive tear strips.
  • a container end having a major portion thereof removable as a unit, a peripheral tear strip defined in said container end by an outer peripheral weakening line and an inner weakening line connected together by a connecting starting weakening line in part defining a starting end of said tear strip, said container end having an axially offset central portion having a border of which a major portion thereof conforms in outline to said inner weakening line, said offset central portion stiffening said container end and thereby resisting parting of said weakening lines, and said inner weakening line terminating into said ofiset portion 3.
  • a container end having a major portion thereof removable as a unit, a peripheral tear stripdefined in said container end by an outer peripheral weakening line and an inner weakening line connected together by a connecting starting weakening line in part defining a starting end of said tear strip, said container end having an axially offset central portion having a border of which a major portion thereof conforms in outline to said inner weakening line, said oifset central portion stifiening said container end and thereby resisting parting of said weakening lines, said outer weakening line including a circular portion and said olfset central portion being generally kidney shaped in outline, said inner weakening line having a major portion thereof disposed concentric to said outer weakening line, and said inner weakening line terminating short of a terminal end of said outer weakening line and into said offset portion.
  • said grip portion having roughened gripping surfaces and 8 upper and lower transverse ribsdisposed in longitudinal offset relation. 7 a
  • a sheet metal pull tab for attachment to a tear strip, said pull tab including an elongated body, said body having a central longitudinally extending depending reinforcing rib, with the cross section of said body transversely of and through said rib being that of a winged channel, said rib including a base and said base having an attaching fastener receiving opening adjacent one end of said body.
  • the pull tab of claim 16 wherein said rib is relatively narrow for a major portion of the length thereof and increases in width adjacent said body one end to receive a fastener head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
US291415A 1963-06-28 1963-06-28 Easy opening pull tab can end with wide tear strip Expired - Lifetime US3195768A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US291415A US3195768A (en) 1963-06-28 1963-06-28 Easy opening pull tab can end with wide tear strip
US335560A US3247997A (en) 1963-06-28 1964-01-03 Easy opening pull tab can end with wide tear strip
GB18688/64A GB1037336A (en) 1963-06-28 1964-05-05 Improvements in or relating to containers having tear strips
DE1964C0013088 DE1922390U (de) 1963-06-28 1964-06-26 Grifflappen aus blech fuer behaelter oder dosen mit einem aufreissbereich
DEC33252A DE1266655B (de) 1963-06-28 1964-06-26 Deckel fuer Dosen oder aehnliche Behaelter mit einem Aufreissstreifen
NL6407360A NL6407360A (de) 1963-06-28 1964-06-29
DK370364AA DK116844B (da) 1963-06-28 1964-07-24 Dåseende med en afrivningsdel, der har en dermed forbundet trækflig.
BE656798D BE656798A (de) 1963-06-28 1964-12-08

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US291415A US3195768A (en) 1963-06-28 1963-06-28 Easy opening pull tab can end with wide tear strip
US335560A US3247997A (en) 1963-06-28 1964-01-03 Easy opening pull tab can end with wide tear strip

Publications (1)

Publication Number Publication Date
US3195768A true US3195768A (en) 1965-07-20

Family

ID=26966754

Family Applications (2)

Application Number Title Priority Date Filing Date
US291415A Expired - Lifetime US3195768A (en) 1963-06-28 1963-06-28 Easy opening pull tab can end with wide tear strip
US335560A Expired - Lifetime US3247997A (en) 1963-06-28 1964-01-03 Easy opening pull tab can end with wide tear strip

Family Applications After (1)

Application Number Title Priority Date Filing Date
US335560A Expired - Lifetime US3247997A (en) 1963-06-28 1964-01-03 Easy opening pull tab can end with wide tear strip

Country Status (6)

Country Link
US (2) US3195768A (de)
BE (1) BE656798A (de)
DE (1) DE1266655B (de)
DK (1) DK116844B (de)
GB (1) GB1037336A (de)
NL (1) NL6407360A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302823A (en) * 1964-11-09 1967-02-07 Murlin L Hulse Pull-tab, quick-opening container
US3325043A (en) * 1964-05-06 1967-06-13 Continental Can Co Container closure
US3326699A (en) * 1964-08-14 1967-06-20 Mayer & Co Inc O Food package
US4733793A (en) * 1987-05-01 1988-03-29 Adolph Coors Company System for forming an opening in a container end member
EP1125852A2 (de) * 2000-02-18 2001-08-22 Sonoco Development, Inc. Behälterverschluss mit einer brechbaren Dichtung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386614A (en) * 1966-02-23 1968-06-04 Reynolds Metals Co Easy-opening means for a container
US3468013A (en) * 1967-10-03 1969-09-23 American Flange & Mfg Method and apparatus for applying closure to containers
CH641109A5 (de) * 1979-10-16 1984-02-15 Alusuisse Druckwiderstandsfaehiger deckel fuer getraenkedosen.
US4320850A (en) * 1980-10-24 1982-03-23 The Continental Group, Inc. Easy opening end unit with tapered score
US4804106A (en) * 1987-09-29 1989-02-14 Weirton Steel Corporation Measures to control opening of full-panel safety-edge, convenience-feature end closures
DE102004063280A1 (de) * 2004-12-29 2006-07-13 BSH Bosch und Siemens Hausgeräte GmbH Behälter und Verfahren zur Öffnung eines Deckels
US8616210B2 (en) * 2006-07-12 2013-12-31 Resmed Limited Ports cap for mask assembly
WO2008080053A1 (en) * 2006-12-22 2008-07-03 Portola Packaging, Inc. Internal container bore mount fitment
JO3303B1 (ar) 2009-10-30 2018-09-16 Crown Packaging Technology Inc اغطية سوائل مهوية

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704234A (en) * 1922-03-20 1929-03-05 American Can Co Keyless-tearing-strip container
US2029329A (en) * 1932-10-21 1936-02-04 Transitoria Ab Device for opening cans
US2172452A (en) * 1936-08-22 1939-09-12 Dispensing Containers Inc Receptacle closure
US3080088A (en) * 1960-06-30 1963-03-05 American Can Co Tamperproof container

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102741C (de) *

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704234A (en) * 1922-03-20 1929-03-05 American Can Co Keyless-tearing-strip container
US2029329A (en) * 1932-10-21 1936-02-04 Transitoria Ab Device for opening cans
US2172452A (en) * 1936-08-22 1939-09-12 Dispensing Containers Inc Receptacle closure
US3080088A (en) * 1960-06-30 1963-03-05 American Can Co Tamperproof container

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325043A (en) * 1964-05-06 1967-06-13 Continental Can Co Container closure
US3326699A (en) * 1964-08-14 1967-06-20 Mayer & Co Inc O Food package
US3302823A (en) * 1964-11-09 1967-02-07 Murlin L Hulse Pull-tab, quick-opening container
US4733793A (en) * 1987-05-01 1988-03-29 Adolph Coors Company System for forming an opening in a container end member
EP1125852A2 (de) * 2000-02-18 2001-08-22 Sonoco Development, Inc. Behälterverschluss mit einer brechbaren Dichtung
EP1125852A3 (de) * 2000-02-18 2003-08-20 Sonoco Development, Inc. Behälterverschluss mit einer brechbaren Dichtung

Also Published As

Publication number Publication date
US3247997A (en) 1966-04-26
DE1266655B (de) 1968-04-18
DK116844B (da) 1970-02-16
NL6407360A (de) 1964-12-29
BE656798A (de) 1965-04-01
GB1037336A (en) 1966-07-27

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