US3273745A - Vented easy opening container - Google Patents

Vented easy opening container Download PDF

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Publication number
US3273745A
US3273745A US379481A US37948164A US3273745A US 3273745 A US3273745 A US 3273745A US 379481 A US379481 A US 379481A US 37948164 A US37948164 A US 37948164A US 3273745 A US3273745 A US 3273745A
Authority
US
United States
Prior art keywords
pull tab
opening
panel
plug
tear strip
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
US379481A
Other languages
English (en)
Inventor
Frederick J Stec
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 US379481A priority Critical patent/US3273745A/en
Priority to DE19641432140 priority patent/DE1432140A1/de
Priority to AT70765A priority patent/AT255319B/de
Application granted granted Critical
Publication of US3273745A publication Critical patent/US3273745A/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
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/506—Rigid or semi-rigid members, e.g. plugs
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0091—Means for venting upon initial opening
    • B65D2517/0094—Means for venting upon initial opening formed as a separate opening
    • 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

  • This invention relates in general to new and useful improvements in container construction, and more particularly to a novel container of the easy opening type wherein in the opening of the container, the container is automatically first vented before actual opening thereof takes place.
  • a primary object of this invention is to provide a novel can end which has a removable tear strip portion to which there is attached a pull tab, the can end further including a vent opening which is initially sealed by the pull tab whereby when the pull tab is lifted to exert a rupturing force on the tear strip, the can of which the can end is a part is automatically vented.
  • Another object of this invention is to provide in an easy opening can of the type having a removable tear strip, a novel pull tab which is formed of a resilient plastic material whereby it may be readily gripped, the pull tab having a connector at one end thereof which is permanently secured to the tear strip, the pull tab presenting a grip portion which may be readily gripped without any possibility of injury to the person gripping the pull tab due to relative slippage between ones fingers and the pull tab.
  • Another object of this invention is to provide a metal can end having a removable tear strip portion with a plastic pull tab, the pull tab being provided with a grip portion at one end thereof and at the opposite end with a depending plug which is receivable in an opening in the tear strip portion and which is permanently lockable to the tear strip portion whereby the pull tab may be utilized in tearing the tear strip portion from the can end.
  • a further object of this invention is to provide a novel can end of the easy opening type which includes a removable tear strip having secured thereto a pull tab, the pull tab being formed of plastic material and having a connector which is receivable in an opening in the tear strip portion, the connector being in the form of a plug having a tapered inner portion to facilitate the passage thereof through the tear strip opening, and the outer portion of the plug having an outwardly facing shoulder which is engageable beneath a flange defining the tear strip opening to permanently interlock the plug with the tear strip, the plug further being hollowed whereby internal pressures Within the can will expand the plug and provide for a tighter seal between the plug and the can end.
  • FIGURE 1 is a fragmentary top perspective view of a can having the top end thereof closed by meansof a can end formed in accordance with this invention.
  • FIGURE 2 is a fragmentary top perspective view similar to FIGURE 1 and shows the can end in a partially opened position.
  • FIGURE 3 is an enlarged fragmentary vertical sectional view taken along the line 33 of FIGURE 1 and shows the specific details of the construction of the can end including the plastic pull tab.
  • FIGURE 4 is an enlarged horizontal sectional view taken along the line 44 of FIGURE 3 and shows further the specific details of the plastic pull tab.
  • the can 5 includes a conventional can body 6 which has the upper end thereof closed by a can end which is the subject of this invention, the can end being generally referred to by the numeral 7.
  • the can end 7 is secured to the can body 6 in the conventional manner by means of a double seam 8.
  • the can end 7, as part of the double seam 8, includes a chuck wall 9. Immediately inwardly of the chuck wall 9, the can end 7 is provided with an inwardly directed shock absorbing bead 10. That portion of the can end 7 surrounded by the shock absorbing head 10 is generally described as an end panel and is identified by the numeral 11.
  • the end panel 11 is provided with a weakening line 12 which is preferably in the form of a score.
  • the weakening line 12 defines a tear strip 13 which is removable from the remainder of the end panel 11 for the purpose of defining a dispensing opening in the end panel 11.
  • the weakening line 12 includes a generally U-shaped portion 14 which is generally centered about the center of the end panel 11, as is best shown in FIGURE 2.
  • the U-shaped portion 14 of the weakening line 12 defines a starting end 15 of the tear strip 13.
  • the pull tab 16 is formed of a suitable, inexpensive, resilient plastic and includes an elongated strap-like body portion 17 which is anchored at one end to the tear strip 13 and is provided with a grip portion at the opposite end.
  • a connector which is generally referred to by the numeral 18.
  • the connector 18 is in the form of a plug which is hollow and has a bore 20 therethrough.
  • the plug includes an upwardly flaring lower portion 21, an intermediate portion 22 of a maximum diameter and a smaller diameter upper portion 23.
  • the reduction in the diameter of the plug to define the upper portion 23 results in the formation of an upwardly facing shoulder 24.
  • the tear strip 13 has an opening 25 therethrough defined by an annular flange 26.
  • the opening 25 is preferably disposed at the center of the can end 7 and the annular flange 26 is inwardly directed.
  • the end panel 11 is provided with a vent opening 27.
  • the vent opening 27 is defined by an inwardly and reversely curved flange 28.
  • vent opening 27 it is necessary that the vent opening 27 remain sealed until opening of the can 5 is desired.
  • the strap like body 17 of the pull tab 16 is provided with a .depending Wedge shaped plug 29 in alignment with the vent opening 27. The plug 29 passes through the opening 27 and is wedged therein to seal the same.
  • grip means generally referred to by the numeral 32 on the end of the strap-like body 17 remote from the connector 18.
  • the grip means 32 is in the form of a pair of offset transverse ribs 33 and 34 integrally formed with the pull tab 16.
  • the rib 33 is disposed along the underside of the pull tab 16. Since the rib 33 must rest on the end panel 11, it will be seen that the right end of the pull tab 16, as viewed in FIGURE 3, is slightly upwardly bowed, and thus spacing the terminal end portion 35 of the pull tab 16 sufiiciently above the end panel 11 to facilitate the gripping thereof.
  • the grip portion 32 may be readily gripped between two of ones fingers. In the opening of the can 5, the grip portion 32 is gripped and the pull tab 16 is lifted upwardly away from the can end 7. As the pull tab 16 is elevated, the adhesive 31 is ruptured and the plug 29 is pulled out of the vent opening 28, thereby venting the pressurized contents of the can 5 to the atmosphere.
  • the pull tab 16 is formed of a resilient deformable plastic, it may be easily gripped between ones fingers and the removal of the tear strip 13 may be effected without any possibility whatsoever of one cutting his or her fingers through the resultant slippage of their fingers with respect to the pull tab.
  • a panel having an integral removable portion defined by weakening lines formed in said panel and a vent opening aligned with said removable portion for first venting the container and a pull tab for facilitating the removal of said removable panel
  • said pull tab being formed of a resilient plastic and including an elongated strap-like body, a connect-or on said body adjacent one end permanently securing said pull tab to said removable portion, said body having at the other end thereof a grip portion, said body further having an intermediate depending plug projecting through said panel opening and engaging said panel around said opening to seal said panel and said body being bonded to said panel adjacent said plug to prevent accidental displacement of said plug, said removable portion having a starting end, an opening in said removable portion adjacent said starting end, and said connect-or being in the form of a plug passing through said removable portion opening and interlocked with said removable portion.
  • vent opening is defined by an inner reversely turned flange, and said tplug being wedge shaped and resiliently deformable.
  • said pull tab grip portion includes longiudinally staggered upper and lower transverse ribs, the lower transverse rib projecting below said body and resting on said panel with said body being deflected away from said body to facilitate the lifting of said pull tab other end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
US379481A 1964-07-01 1964-07-01 Vented easy opening container Expired - Lifetime US3273745A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US379481A US3273745A (en) 1964-07-01 1964-07-01 Vented easy opening container
DE19641432140 DE1432140A1 (de) 1964-07-01 1964-11-27 Behaelterdeckel,insbesondere von Dosen fuer unter Druck verpacktem Inhalt
AT70765A AT255319B (de) 1964-07-01 1965-01-27 Behälterdeckel, insbesondere von Dosen für unter Druck verpacktem Inhalt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US379481A US3273745A (en) 1964-07-01 1964-07-01 Vented easy opening container

Publications (1)

Publication Number Publication Date
US3273745A true US3273745A (en) 1966-09-20

Family

ID=23497441

Family Applications (1)

Application Number Title Priority Date Filing Date
US379481A Expired - Lifetime US3273745A (en) 1964-07-01 1964-07-01 Vented easy opening container

Country Status (3)

Country Link
US (1) US3273745A (de)
AT (1) AT255319B (de)
DE (1) DE1432140A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468013A (en) * 1967-10-03 1969-09-23 American Flange & Mfg Method and apparatus for applying closure to containers
US3900393A (en) * 1973-11-05 1975-08-19 Randtron Rubber grommet array for sizing screens
US3980555A (en) * 1973-08-24 1976-09-14 Screenex Wire Weaving Manufacturers Limited Replacable screen with frame
US5011037A (en) * 1989-11-30 1991-04-30 Adolph Coors Company Container end member
US5688544A (en) * 1995-04-18 1997-11-18 Kraft Foods, Inc. Easy opening ventable closure for sealed particulate product package
US20120241456A1 (en) * 2011-03-22 2012-09-27 Vovan Jane N Containers with tamper-evident features

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105445A (en) * 1937-05-06 1938-01-11 Arthur H Parker Can
US3049264A (en) * 1959-06-01 1962-08-14 Zbigniew K Morawski Sanitary removable covers for containers
US3151766A (en) * 1961-02-10 1964-10-06 Continental Can Co Pull tab tear strip combination for metal can end

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105445A (en) * 1937-05-06 1938-01-11 Arthur H Parker Can
US3049264A (en) * 1959-06-01 1962-08-14 Zbigniew K Morawski Sanitary removable covers for containers
US3151766A (en) * 1961-02-10 1964-10-06 Continental Can Co Pull tab tear strip combination for metal can end

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468013A (en) * 1967-10-03 1969-09-23 American Flange & Mfg Method and apparatus for applying closure to containers
US3980555A (en) * 1973-08-24 1976-09-14 Screenex Wire Weaving Manufacturers Limited Replacable screen with frame
US3900393A (en) * 1973-11-05 1975-08-19 Randtron Rubber grommet array for sizing screens
US5011037A (en) * 1989-11-30 1991-04-30 Adolph Coors Company Container end member
US5688544A (en) * 1995-04-18 1997-11-18 Kraft Foods, Inc. Easy opening ventable closure for sealed particulate product package
US20120241456A1 (en) * 2011-03-22 2012-09-27 Vovan Jane N Containers with tamper-evident features
US9278786B2 (en) * 2011-03-22 2016-03-08 Smart-Tab, Llc Containers with tamper-evident features

Also Published As

Publication number Publication date
DE1432140A1 (de) 1968-12-12
AT255319B (de) 1967-06-26

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