US3220590A - Split type removable closure and method of making same - Google Patents

Split type removable closure and method of making same Download PDF

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Publication number
US3220590A
US3220590A US366956A US36695664A US3220590A US 3220590 A US3220590 A US 3220590A US 366956 A US366956 A US 366956A US 36695664 A US36695664 A US 36695664A US 3220590 A US3220590 A US 3220590A
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US
United States
Prior art keywords
tab
closure cap
cap
skirt
juncture
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Expired - Lifetime
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US366956A
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English (en)
Inventor
Barvo N Walker
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Individual
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Individual
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Publication date
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Priority to US366956A priority Critical patent/US3220590A/en
Priority to DE19651456092 priority patent/DE1456092B2/de
Application granted granted Critical
Publication of US3220590A publication Critical patent/US3220590A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/22—Taking-up articles from earth's surface

Definitions

  • the present invention is an improvement over the closure cap disclosed in the aforementioned prior copending application and accordingly embodies all of the advantageous attributes thereof. It is therefore also a primary object of the present invention to provide a sealing cap for containers which may be applied in the usual manner by a capping machine and yet provide adequate facilities for removal of the cap without use of any opening tools.
  • a novel method for manufacturing the aforementioned closure cap is provided by virtue of which little modification is required for the machines now operative to form the usual type of bottle closure cap requiring opening tools for removal thereof from the mouth of a container or bottle.
  • the closure cap of the present invention features an elongated pull tab integrally connected to the edge portion of the annular crimping skirt of the closure cap and folded over to cover score lines which define a continuation of the pull tab on the top cover portion of the closure cap along which the closure cap is split by unfolding of the pull tab and pulling thereof across the top of the closure cap.
  • the closure cap in its final form will therefore provide a pull tab of sufficient length to ensure adequate gripping despite the relatively small size of the closure cap.
  • the folded arrangement of the pull tab not only provides protection for the score lines formed on the cover portion of the closure cap but also avoids projections from the usual configuration of the closure cap so that capping may be performed by capping machines without any modification thereof.
  • An additional object of the present invention is to provide a closure cap adapted to be split without use of any tools, having structural features which facilitate its formation from stock material.
  • FIGURE 1 is a perspective view of one form of closure cap made in accordance with the present invention sealing the mouth of a bottle container.
  • FIGURE 2 is a sectional view of the closure cap as shown installed in FIGURE 1, taken substantially through a plane indicated by section line 2-2 of FIGURE 1.
  • FIGURE 3 is an enlarged partial sectional view taken substantially through a plane indicated by section line 3-3 in FIGURE 2.
  • FIGURE 4 is a perspective view of the closure cap being split.
  • FIGURE 5 is a top plan view of a closure cap in its initial stages of formation.
  • FIGURE 6 is a perspective View of the closure cap in a further stage of formation.
  • FIGURE 7 is a perspective view of the closure cap in a still further stage of formation.
  • FIGURE 8 is a perspective view of another form of closure cap made in accordance with the present invention.
  • FIGURE 9 is a sectional view of the closure cap shown in FIGURE 8 taken substantially through a plane indicated by section line 99 in FIGURE 8.
  • FIGURE 10 is an enlarged partial sectional view taken substantially through a plane indicated by section line 10-10 in FIGURE 9.
  • FIGURE 11 is a perspective view of two of the parts of the closure cap in the initial stages of formation.
  • FIGURE 12 is a perspective view of the closure cap in a further stage of formation.
  • FIGURE 13 is a perspective view of the closure cap in a still further stage of formation.
  • closure cap generally referred to by reference numeral 10
  • the closure cap therefore includes a top cover portion 16 closing the mouth of the container and an annular skirt portion 18 crimped about the mouth so as to seal the cap thereon.
  • the closure cap however, is also provided with an elongated pull tab 20 which is integrally connected to an arcuate edge portion of the annular skirt 18 at a juncture generally referred to by reference numeral 22, the pull tab being folded at said juncture so as to extend across an arcuate portion of the annular skirt 18 and diametrically across a major portion of the top cover portion 16.
  • Also formed on the top surface of the cover portion 16 are a pair of score lines 24 which extend from the juncture 22 beneath the pull tab 20 in its folded posi tion.
  • the pull tab is accordingly dimensioned so that its width will exceed the spacing between the score lines and be of a length sufficient to extend diametrically across the major portion of the top cover portion 16 and the width of the annular crimping skirt 18.
  • the closure cap is initially cut from the stock material in the form of a circular disc, the circular edge 28 finally forming the crimped annular edge of the skirt 1%.
  • the circular disc is however formed with the radially projecting pull tab 20.
  • the pull tab is dimensioned in length as aforementioned in order to cover the score lines 24 which are also formed on the circular disc after it is blanked from the stock material.
  • the score lines define therefore an extension of the pull tab which is provided with a connecting transition portion 30 the sides of which converge from a wider portion of the tab toward the juncture 22 with the circular disc from which the score lines 24 extend.
  • a diamond shape cutout 32 is also cut so as to extend from the juncture 22 in both radial directions. As a result thereof, folding of the pull tab so as to conform more closely to the circular edge 28 is facilitated inasmuch as the arcuate length of the juncture 22 is thereby reduced and separated into spaced portions. As indicated in FIGURES 6 and 7,
  • rolled edge fold is formed at the juncture 22 by insertion of an arcuate wire section 34 at the juncture bridging the cutout 32. Accordingly, the closure cap in the stage of formation shown in FIGURE 7, may be recived within the usual dies of the capping machine in order to form the annular crimping skirt.
  • the pull tab may be folded over the closure cap and more closely conform to the general configuration thereof so as to avoid any sharp projections.
  • the provision of the wire section 34 also prevents the formation of a sharp fold so as to avoid rupture of the pull tab at the juncture when it is unfolded.
  • FIGURES 8 through 13 another form of the closure cap is illustrated and is generally denoted by reference numeral 36.
  • This form of closure cap is split in the same manner as described in connection with the closure cap is illustrated in FIGURES 1 through 7.
  • the closure cap 36 therefore also includes a top closure portion 38 from which an annular crimping skirt 40 depends with an elongated pull tab 42 being folded thereover. Accordingly, the pull tab is unfolded after which it is pulled across the top cover portion 38 of the closure cap in order to split the closure cap in two sections.
  • the closure cap is formed from two separately cut parts including a generaly circular disc part, the circular edge 44 of which forms the edge of the annular crimping skirt 40.
  • the circular disc part is preferably made of a tinplated steel and is provided with a radially extending slot 46 having diverging side portions 48 whch open the slot 46 at the circular edge 44.
  • the pull tab 42 may be formed of a weaker material such as aluminum and is integral with an elongated strip portion 50 cemented to the circular disc part by an epoxy cement for example so as to expose through the slot 46, the score lines 52.
  • the score lines extend from the juncture 54 of the strip portion 50 with the pull tab 42 so as to form a continuation of the pull tab which is also provided with the converging transition portion 56 similar to the portion described in connecton with the closure cap 10 in FIGURES 1 through 7.
  • a diamond shape cutout 58 is also provided at the juncture 54 whereby the fold formed at the juncture 54 may more closely conform to the final configuration of the closure cap.
  • a closure cap adapted to be applied to the mouth of a container comprising a configuration formed by a cover and an annular crimping skirt depending from said cover, an elongated folding tab having a transition portion connected to said skirt and a flat wider portion extending diametrically across a major portion of the cover terminating short of the skirt, a pair of spaced scorelines formed on the cover and depending therefrom across the skirt to the tab, said tab being folded across the skirt and the cover to a folded position covering the scorelines, said scorelines defining a separable strip covered by said wider portion of the tab along which the closure cap is split by a pull on the tab after unfolding thereof from said folded position, said transition portion of the tab extending radially from an arcuate edge portion of the skirt across which the tab is folded, and means forming a rolled edge fold between the tab and said edge portion of the skirt including an arcuate wire section over which the tab is folded, the tab and said edge portion of the skirt are provided with a connecting cutout bridged by said wire section for
  • a method of making a split type of removable closure cap having a cover portion and an annular crimping skirt comprising the steps of: forming a circular disk with an elongated tab projecting radially therefrom; removing a diamond shaped cut out at the juncture of the tab with the circular disk; scoring the circular disk to define a continuation of the tab across the disk; folding the tab over the scoring from the juncture thereof with the disk; crimping an annular portion of the disk with the tab folded thereon to form the skirt and cover portion of the closure cap; and inserting an arcuate strip of wire on the juncture of the tab with the disc bridging the cutout before folding of the tab, to form a rolled edge fold.
  • a cap adapted to be mounted over the mouth of a container for sealing thereof, comprising a top and a depending skirt formed integral therewith, splitting means connected to the cap including a folded tab having a transition portion folded against said skirt and a pull portion integral therewith extending across the top exposing a substantial portion of the top, spaced scorelines on said top completely concealed beneath the pull portion of the tab, said scorelines extending from a juncture between the cap and the transition portion of the tab, and means located at said juncture for reducing distortion of the skirt where the tab is folded without weakening of the juncture to avoid rupture thereof in response to unfolding of the tab, said latter-mentioned means includes a diamond-shaped cutout extending between the tab and the skirt at the juncture, and a rod element bridging said cutout about which the tab is folded.
  • a cap adapted to be mounted over the mouth of a container for sealing thereof, comprising a top and a depending skirt formed integral therewith, splitting means connected to the cap including a folded tab having a transition portion folded against said skirt and a pull portion integral therewith extending across the top exposing a substantial portion of the top, spaced scorelines on said top completely concealed beneath the pull portion of the tab, said scorelines extending from a juncture between the cap and the transition portion of the tab,
  • said cap is formed with a slot, an elongated strip made of material Weaker than that of the top secured to the top beneath the slot therein, said tab being integrally connected to the strip and said scorelines being formed in the strip for exposure through the slot.
  • a method of making a split type of removable closure cap having a cover portion and an annular crimping skirt comprising the steps of: forming a circular disk with an elongated tab projecting radially therefrom; removing a diamond-shaped cutout at the juncture of the tab with the circular disk; scoring the circular disk to define a continuation of the tab across the disk; folding the tab over the scoring from the juncture thereof With the disk; and crimping an annular portion of the disk with the tab folded thereon to form the skirt and cover portion of the closure cap, said step of forming the disk comprising: cutting a circular portion from fiat stock material with a slot therein; securing an elongated strip of Weaker material to the circular portion covering the slot; said scorelines being formed on the strip for exposure through the slot and said cutout being disposed in the strip between the scorelines and the tab.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Peptides Or Proteins (AREA)
  • Closures For Containers (AREA)
US366956A 1964-05-13 1964-05-13 Split type removable closure and method of making same Expired - Lifetime US3220590A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US366956A US3220590A (en) 1964-05-13 1964-05-13 Split type removable closure and method of making same
DE19651456092 DE1456092B2 (de) 1964-05-13 1965-05-10 Vorrichtung zum Aufhängen einer Last an einem Träger, insbesondere einem Luftfahrzeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US366956A US3220590A (en) 1964-05-13 1964-05-13 Split type removable closure and method of making same

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US3220590A true US3220590A (en) 1965-11-30

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DE (1) DE1456092B2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646728B2 (en) 2009-06-23 2014-02-11 Matthias Schuster Load lifting apparatus for a helicopter and helicopter

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190910659A (en) * 1909-05-05 1910-04-14 Ralph Waldo Webster Improvements in or relating to Stoppers and the like for Bottles and similar Receptacles.
FR446582A (fr) * 1912-02-10 1912-12-09 Eugen Amson Bouchage par capsule pour bouteilles, comportant une bande ou fil métallique placé sous la capsule, permettant le débouchage par arrachement
GB395607A (en) * 1932-01-08 1933-07-20 Pierre Gonzalve Julien Improvements in bottle capsules or the like
US2068444A (en) * 1936-08-29 1937-01-19 Reynolds Metals Co Tear tab closure
US2697532A (en) * 1951-06-15 1954-12-21 Jr George H Hutaff Bottle cap
CA544109A (en) * 1957-07-23 Wilfrid Lafreniere Combined bottle cap and opener
US2844267A (en) * 1956-11-05 1958-07-22 Petriccione Peter Combined drinking straw and bottle cap
GB818298A (en) * 1958-03-26 1959-08-12 Anteo Fe Improvements in or relating to crown corks or the like closure members
US2903367A (en) * 1955-06-27 1959-09-08 George E Grindrod Method for sterilizing surfaces of food materials
US3102653A (en) * 1962-07-17 1963-09-03 Jacques Francis J St One-piece manually removable bottle cap

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA544109A (en) * 1957-07-23 Wilfrid Lafreniere Combined bottle cap and opener
GB190910659A (en) * 1909-05-05 1910-04-14 Ralph Waldo Webster Improvements in or relating to Stoppers and the like for Bottles and similar Receptacles.
FR446582A (fr) * 1912-02-10 1912-12-09 Eugen Amson Bouchage par capsule pour bouteilles, comportant une bande ou fil métallique placé sous la capsule, permettant le débouchage par arrachement
GB395607A (en) * 1932-01-08 1933-07-20 Pierre Gonzalve Julien Improvements in bottle capsules or the like
US2068444A (en) * 1936-08-29 1937-01-19 Reynolds Metals Co Tear tab closure
US2697532A (en) * 1951-06-15 1954-12-21 Jr George H Hutaff Bottle cap
US2903367A (en) * 1955-06-27 1959-09-08 George E Grindrod Method for sterilizing surfaces of food materials
US2844267A (en) * 1956-11-05 1958-07-22 Petriccione Peter Combined drinking straw and bottle cap
GB818298A (en) * 1958-03-26 1959-08-12 Anteo Fe Improvements in or relating to crown corks or the like closure members
US3102653A (en) * 1962-07-17 1963-09-03 Jacques Francis J St One-piece manually removable bottle cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646728B2 (en) 2009-06-23 2014-02-11 Matthias Schuster Load lifting apparatus for a helicopter and helicopter

Also Published As

Publication number Publication date
DE1456092A1 (de) 1969-01-02
DE1456092B2 (de) 1970-06-11

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