US3366270A - Pull tab for easy opening can end - Google Patents

Pull tab for easy opening can end Download PDF

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Publication number
US3366270A
US3366270A US553390A US55339066A US3366270A US 3366270 A US3366270 A US 3366270A US 553390 A US553390 A US 553390A US 55339066 A US55339066 A US 55339066A US 3366270 A US3366270 A US 3366270A
Authority
US
United States
Prior art keywords
pull tab
nose
attaching
panel
grip portion
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
US553390A
Other languages
English (en)
Inventor
Nick S Khoury
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 US553390A priority Critical patent/US3366270A/en
Priority to DE1607841A priority patent/DE1607841C3/de
Priority to AT1165466A priority patent/AT268136B/de
Priority to NO167057A priority patent/NO119971B/no
Priority to GB13015/67A priority patent/GB1125425A/en
Priority to FR99587A priority patent/FR1516550A/fr
Priority to NL6705724A priority patent/NL6705724A/xx
Priority to BR189654/67A priority patent/BR6789654D0/pt
Priority to BE698991D priority patent/BE698991A/xx
Priority to ES341086A priority patent/ES341086A1/es
Application granted granted Critical
Publication of US3366270A publication Critical patent/US3366270A/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

Definitions

  • This invention relates to a pull tab wherein in the initial rupture of the container panel, an inward pressure is exerted utilizing the pull tab with the pull tab functioning as a simple first-class lever.
  • Another object of this invention is to provide a novel pull tab which may be readily formed of sheet metal and which is reinforced by shaping the same to be extremely rigid and at the same time being of a construction so as to have a hinged connection with respect to the removable panel portion.
  • a further object of this invention is to provide a rigid sheet metal pull tab for easy opening containers wherein the pull tab includes a forward portion terminating in a nose for applying a concentrated pressure on a panel portion and a rear grip portion of the finger ring type, the forward portion including an attaching panel which is hingedly connected to the remainder of the pull tab along a transverse line, which attaching portion may be rigidly secured to a removable panel and which permits the swinging of the pull tab relative to the panel to effect an opening pressure on the panel.
  • FIGURE 1 is a fragmentary plan view of a can end incorporating the pull tab of this invention.
  • FIGURE 2 is an enlarged fragmentary vertical sectional view taken along the line 2-2 of FIGURE 1.
  • FIGURE 3 is an enlarged fragmentary transverse vertical sectional view taken along the line 33 of FIG- URE 2.
  • FIGURE 4 is an enlarged horizontal sectional view taken along the line 44 of FIGURE 2.
  • FIGURE 5 is an enlarged fragmentary vertical sectional view similar to FIGURE 2 and shows a modified form of pull tab.
  • FIGURE 6 is a fragmentary horizontal sectional view taken along the line 66 of FIGURE 5 and shows further the details of the modified form of pull tab.
  • FIGURES 1 and 2 an easy opening container which is generally referred to by the numeral 10 and which is illustrated as being in the form of a generally conventional type of can.
  • the container 10 includes a can body 11 to which there is secured by means of a double seam 12 a can end which is generally referred to by the numeral 13.
  • the can end 13 includes an end panel 14 of which a major portion thereof is r movable, the removable panel portion being identified 3,365,270 Patented Jan. 30, 1968 by the numeral 15 and being outlined by a peripheral score line 16.
  • a pull tab which is generally referred to by the numeral 17.
  • the pull tab 17 is formed from a single piece of sheet metal and is fixedly secured to the removable panel portion 15 by means of a rivet 18 formed integral with the panel portion 15.
  • the pull tab 17 includes a forward portion, generally identified by the numeral 19, and a rear grip portion, generally referred to by the numeral 20.
  • the portions 19 and 20 are connected together by a transverse cross bar 21 which is common to the two portions of the pull tab.
  • the grip portion 20 is in the form of a finger ring and has a finger receiving opening 22.
  • the finger receiving opening 22 is defined by a downwardly and radially outwardly turned curl 23 which is best shown in FIGURE 2.
  • the sheet metal of the pull tab 17 is folded or curled to define a hem 24.
  • the hem 24 cooperates with the curl 23 to rigidify the grip portion 20 and at the same time to eliminate all exposed raw edges around the grip portion 20, both internally and externally.
  • the forward portion 19 is reinforced by an upstanding rib 25 which extends substantially entirely around the forward portion 19.
  • the flange 28 at each side of the forward portion 19 is a continuation of the hem 24.
  • the upstanding flange 26 forms one boundary of the cross bar 21 while the curl 23 forms the opposite boundary of the cross bar 21.
  • the rib 25 defines a recessed attaching portion 30 which is planar and of which a portion is in the form of an attaching panel 31.
  • the attaching panel 31 is defined by a generally U-shaped cut 32 which opens towards the forward end of the pull tab. The cut 32 terminates at the opposite ends thereof in transversely aligned, generally opposed, reversely turned portions 33.
  • the attaching panel 31 has an opening 34 therethrough receiving the rivet 18, as is best shown in FIGURE 2.
  • the forward portion 19 of the pull tab terminates at its forward end in a nose generally identified by the numeral 35.
  • the nose 35 includes a central curved portion 36 and outwardly and rearwardly diverging outer portions 37.
  • the radius of curvature of the curved portion 36 is the same as the radius of curvature of that portion of the score line 16 with which the pull tab 17 is aligned.
  • the arcuate central portion 36 of the nose 35 is disposed in matching aligned relation with respect to the score line 16 when the pull tab 17 is in its operative position.
  • the grip portion 20 which is primarily in the form of a ring, has that part thereof remote from the forward portion 19 upwardly offset as at 38.
  • the upward offsetting of the grip portion 20 facilitates the insertion of ones finger beneath the grip portion 20 to facilitate the initial lifting of the pull tab 17.
  • FIGURE 2 it will be seen that when it is desired to open the can 10, the rear end of the grip portion 20 is lifted. As the pull tab 17 is lifted, it will hinge about a transverse line extending between the end portions 33 of the cut line 32 with a majority of the pull tab 17 hinging relative to the attaching portion 31. During the initial portion of the lifting movement of the pull tab 17, there will be a certain amount of slack which will permit the elevation of the grip portion 20 a suflicient distance to facilitate the firm engagement of ones finger in the finger receiving opening 22 thereof.
  • FIGURES 5 and 6 wherein there is illustrated a slightly modified form of pull tab which is generaly referred to by the numeral 40.
  • the pull tab 40 like the pull tab 17, includes a forward portion 41 and a grip portion 42 with the two portions being connected together by a cross bar 43.
  • the grip portion 42 is identical with the grip portion of the pull tab 17, further description of the grip portion 42 is believed to be unnecessary.
  • the forward portion 41 is defined by an upstanding rib 44 which, together with the cross bar 43, forms an encircling reinforcement.
  • the rib 44 includes an upstanding inner flange 45, an uppermost horizontally disposed web 46, and a peripheral depending flange 47.
  • the shapes of the flanges 45 and 47 are clearly shown in FIGURES 5 and 6.
  • the flange 45 defines an attaching portion 49 which is substantially planar and which has formed therein a forwardly opening U-shaped cut 50 which defines an attaching panel 51.
  • the U-shaped cut 50 terminates at its forward ends in inwardly and reversely turned cut portions 52 which are disposed in transverse opposed relation.
  • the attaching panel 51 is provided with an opening 53 through which the rivet 18 of the associated can 10 passes.
  • the forward portion 41 terminates in a nose which is generally referred to by the numeral 54.
  • the nose includes a central arcuate portion 55 and rearwardly and outwardly diverging outer portions 56-.
  • the nose 54 is formed by a forward portion of the peripheral flange 47, as is clearly shown in FIGURES 5 and 6.
  • a one-piece sheet metal pull tab having a forward portion and a finger ring type grip portion rigidly connected by a transverse cross bar, said forward portion having a nose at the end thereof remote from said grip portion, the interior of said grip portion being defined by a curl, said forward portion having a central attaching portion defined by an upstanding flange, said curl and said flange being disposed on opposite sides of and reinforcing said cross bar, and said attaching portion including a hingedly mounted attaching panel extending away from said nose.
  • said nose includes an arcuate central portion centered along a longitudinal central axis of said pull tab, and outwardly, diverging outer portions whereby a concentrated pressure may be applied by said nose central portion.
  • An easy opening container member comprising a panel having a single continuous arcuate weakening line formed therein to define a removable panel portion, a pull tab carried solely by said removable panel portion for facilitating both the rupture of said panel along said weakening line and the tearing out of said panel portion, said pull tab having a forward portion and a finger ring type grip portion rigidly connected by a transverse cross bar, said forward portion having a nose at the end thereof remote from said grip portion, the interior of said grip portion being defined by a curl, said forward portion having a central attaching portion defined by an upstanding flange, said curl and said flange being disposed on opposite sides of and reinforcing said cross bar, and said attaching portion including a hingedly mounted attaching panel extending away from said nose, means permanently securing said attaching panel to said removable panel portion with said nose aligned with said weakening line, and said nose having an arcuate central portion centered along a longitudinal central axis of said 5 6 pull tab, and outwardly diverging outer portions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
US553390A 1966-05-27 1966-05-27 Pull tab for easy opening can end Expired - Lifetime US3366270A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US553390A US3366270A (en) 1966-05-27 1966-05-27 Pull tab for easy opening can end
DE1607841A DE1607841C3 (de) 1966-05-27 1966-12-14 Leicht aufreißbarer Deckel fur Behalter
AT1165466A AT268136B (de) 1966-05-27 1966-12-19 Leicht aufreißbarer Deckel für Behälter
NO167057A NO119971B (de) 1966-05-27 1967-02-28
GB13015/67A GB1125425A (en) 1966-05-27 1967-03-20 Improvements in or relating to pull tabs for easy opening container members
FR99587A FR1516550A (fr) 1966-05-27 1967-03-21 Patte de tirage pour extrémités de boîtes de conserves à ouverture rapide
NL6705724A NL6705724A (de) 1966-05-27 1967-04-24
BR189654/67A BR6789654D0 (pt) 1966-05-27 1967-05-22 Aba de tracao metalica mono-peca para extremidades de facil abertura de latas bem como lata empregando a mesma
BE698991D BE698991A (de) 1966-05-27 1967-05-25
ES341086A ES341086A1 (es) 1966-05-27 1967-05-27 Perfeccionamientos en la fabricacion de envases de facil a-pertura.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US553390A US3366270A (en) 1966-05-27 1966-05-27 Pull tab for easy opening can end

Publications (1)

Publication Number Publication Date
US3366270A true US3366270A (en) 1968-01-30

Family

ID=24209224

Family Applications (1)

Application Number Title Priority Date Filing Date
US553390A Expired - Lifetime US3366270A (en) 1966-05-27 1966-05-27 Pull tab for easy opening can end

Country Status (9)

Country Link
US (1) US3366270A (de)
AT (1) AT268136B (de)
BE (1) BE698991A (de)
BR (1) BR6789654D0 (de)
DE (1) DE1607841C3 (de)
ES (1) ES341086A1 (de)
GB (1) GB1125425A (de)
NL (1) NL6705724A (de)
NO (1) NO119971B (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401824A (en) * 1967-09-07 1968-09-17 American Can Company Inc Full-open can
US3406867A (en) * 1967-06-30 1968-10-22 Continental Can Co Easy opening container end
US3416700A (en) * 1967-10-25 1968-12-17 Continental Can Co Safety device for easy opening container ends
US3430802A (en) * 1967-05-15 1969-03-04 American Can Co Easy-opening can
US3434623A (en) * 1966-12-01 1969-03-25 Cookson Sheet Metal Dev Ltd Container with pull-tab opener
US3441171A (en) * 1968-03-11 1969-04-29 Continental Can Co Easy-opening container panel structure
US3445028A (en) * 1968-03-14 1969-05-20 Fraze Ermal C Tab for an easy-opening container
US3446389A (en) * 1967-10-13 1969-05-27 Fraze Ermal C Easy-opening can end with nonremovable tab
US3450301A (en) * 1968-02-19 1969-06-17 Continental Can Co Easy opening container
US3454185A (en) * 1967-08-31 1969-07-08 Fraze Ermal C Easy opening can end
US3477608A (en) * 1968-11-21 1969-11-11 Ermal C Fraze Easy-opening can end having vent means
US3480175A (en) * 1967-03-17 1969-11-25 Continental Can Co Single pull ring tab
US3485410A (en) * 1968-01-05 1969-12-23 Continental Can Co Pressure relief score
US3486665A (en) * 1967-10-02 1969-12-30 American Can Co Dispensing can with plastic top
US3490643A (en) * 1968-01-22 1970-01-20 Dorn Co V Full opening container end
US3593877A (en) * 1969-09-29 1971-07-20 Continental Can Co Pull tab mounting arrangement for easy opening can end
US4182460A (en) * 1967-07-27 1980-01-08 Continental Can Company, Inc. Lever action tab system for easy opening ends
USRE30349E (en) * 1967-04-21 1980-07-29 Ermal C. Fraze Easy-opening container wall with coreline vent
DE3204974A1 (de) * 1981-06-29 1983-01-20 Nihon Seikan Co. Ltd., Ohmiya, Saitama Dose
US4445621A (en) * 1983-03-28 1984-05-01 Stoffel Technologies, Inc. Easy-open container wall
US20040144787A1 (en) * 2003-01-23 2004-07-29 Heck Jonathan Andrew Quick-pour can
WO2023067508A1 (en) * 2021-10-20 2023-04-27 Canpack Food And Industrial Packaging Sp. Z O.O. Food and beverage can tab

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313446A (en) * 1964-05-15 1967-04-11 Leo M Harvey Self-opening container with handle
US3322296A (en) * 1965-02-19 1967-05-30 Continental Can Co Easy opening container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313446A (en) * 1964-05-15 1967-04-11 Leo M Harvey Self-opening container with handle
US3322296A (en) * 1965-02-19 1967-05-30 Continental Can Co Easy opening container

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434623A (en) * 1966-12-01 1969-03-25 Cookson Sheet Metal Dev Ltd Container with pull-tab opener
US3480175A (en) * 1967-03-17 1969-11-25 Continental Can Co Single pull ring tab
USRE30349E (en) * 1967-04-21 1980-07-29 Ermal C. Fraze Easy-opening container wall with coreline vent
US3430802A (en) * 1967-05-15 1969-03-04 American Can Co Easy-opening can
US3406867A (en) * 1967-06-30 1968-10-22 Continental Can Co Easy opening container end
US4182460A (en) * 1967-07-27 1980-01-08 Continental Can Company, Inc. Lever action tab system for easy opening ends
US3454185A (en) * 1967-08-31 1969-07-08 Fraze Ermal C Easy opening can end
US3401824A (en) * 1967-09-07 1968-09-17 American Can Company Inc Full-open can
US3486665A (en) * 1967-10-02 1969-12-30 American Can Co Dispensing can with plastic top
US3446389A (en) * 1967-10-13 1969-05-27 Fraze Ermal C Easy-opening can end with nonremovable tab
US3416700A (en) * 1967-10-25 1968-12-17 Continental Can Co Safety device for easy opening container ends
US3485410A (en) * 1968-01-05 1969-12-23 Continental Can Co Pressure relief score
US3490643A (en) * 1968-01-22 1970-01-20 Dorn Co V Full opening container end
US3450301A (en) * 1968-02-19 1969-06-17 Continental Can Co Easy opening container
US3441171A (en) * 1968-03-11 1969-04-29 Continental Can Co Easy-opening container panel structure
US3445028A (en) * 1968-03-14 1969-05-20 Fraze Ermal C Tab for an easy-opening container
US3477608A (en) * 1968-11-21 1969-11-11 Ermal C Fraze Easy-opening can end having vent means
US3593877A (en) * 1969-09-29 1971-07-20 Continental Can Co Pull tab mounting arrangement for easy opening can end
DE3204974A1 (de) * 1981-06-29 1983-01-20 Nihon Seikan Co. Ltd., Ohmiya, Saitama Dose
US4445621A (en) * 1983-03-28 1984-05-01 Stoffel Technologies, Inc. Easy-open container wall
US20040144787A1 (en) * 2003-01-23 2004-07-29 Heck Jonathan Andrew Quick-pour can
WO2023067508A1 (en) * 2021-10-20 2023-04-27 Canpack Food And Industrial Packaging Sp. Z O.O. Food and beverage can tab

Also Published As

Publication number Publication date
DE1607841A1 (de) 1970-08-27
GB1125425A (en) 1968-08-28
DE1607841B2 (de) 1973-01-18
BE698991A (de) 1967-11-03
ES341086A1 (es) 1968-12-01
DE1607841C3 (de) 1973-12-06
NL6705724A (de) 1967-11-28
NO119971B (de) 1970-08-03
BR6789654D0 (pt) 1973-07-17
AT268136B (de) 1969-01-27

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