US3446381A - Metallic cap provided with a separate bottom disc - Google Patents

Metallic cap provided with a separate bottom disc Download PDF

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Publication number
US3446381A
US3446381A US728079A US3446381DA US3446381A US 3446381 A US3446381 A US 3446381A US 728079 A US728079 A US 728079A US 3446381D A US3446381D A US 3446381DA US 3446381 A US3446381 A US 3446381A
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US
United States
Prior art keywords
disc
edge
sleeve
mouth
bottom disc
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
US728079A
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English (en)
Inventor
Armando Podesta
Carlo Vignati
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Cebal GP
Original Assignee
Cebal GP
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Filing date
Publication date
Application filed by Cebal GP filed Critical Cebal GP
Application granted granted Critical
Publication of US3446381A publication Critical patent/US3446381A/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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
    • B65D51/145—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars by means of an additional element connected directly to the container

Definitions

  • a two piece metallic cap for the closure of a container including a bottom disc with a peripheral edge projecting from the peripheral outer edge of the container mouth, and a sleeve like skirt provided with an inturned flange at its top with means for securing it to the container mouth; the edge of the inturned flange cooperates with the projecting peripheral edge of the bottom disc to compress the disc against the mouth of the container.
  • This invention relates to two-piece metallic caps for the closure of containers, particularly of glass bottles, pots and like containers provided with a cylindrical top or neck ending with a circular mouth.
  • the invention aims to provide improved caps for such containers including a sleeve which may be anchored by screwing to the container neck and a bottom disc which is separated from said sleeve and pressed against the mouth with the interposition of a suitable packing, by a small inturned flange projecting from the top sleeve edge and which co-acts with the outer marginal part of the said bottom disc.
  • the two-piece caps With respect to the single-piece closure caps provided with a depending side skirt integral on its bottom i.e. formed in one piece with said bottom, the two-piece caps, the bottom of which is formed by a separate disc, present the advantage that when they are fitted upon the mouth, the rotation of the sleeve by fastening of the cap is not transmitted to the cap bottom, so that the slipping of the packing upon the container mouth is avoided and thus damaging of the packing due to friction is prevented.
  • the invention aims to obviate said inconveniences by providing a cap comprising a sleeve part provided with a very narrow inturned flange at the top end, which does not project above the underlying container to be capped, while the underlying bottom disc projects under the flange edge and has thus a greater diameter than the outer edge of the mouth of the container to be capped.
  • the bottom disc may freely and readily adapt itself to the irregularities of the mouth. Consequently packings having a very reduced thickness and cost may be employed.
  • FIGURES 1 and 2 show in a somewhat enlarged scale and in a partial vertical section a preferred embodiment of a two-piece cap according to the invention, before and after its fitting upon a container mouth.
  • FIGURES 3, 4 and 5 show diagrammatically in vertical section the three successive steps of a preferred method and means for the manufacture of the cap as shown in FIGURES 1 and 2.
  • FIGURE 6 shows in plan view the in-pressed halfworked blank which is obtained in the working step shown in FIGURE 4.
  • the two-piece metallic cap comprises a bottom disc 1 and a sleeve 2 to be anchored by means of a curled edge 5 provided with a flattened inclined top to complementary screw thread sections 4 of the container neck 3.
  • Sleeve 2 has a substantially cylindrical lower section 102 which, through an annular, preferably slightly conical step 202, is connected to a substantially cylindrical or preferably slightly reversed conical top part 302 having a smaller diameter than the lower sleeve part.
  • the top edge of sleeve 2 is in-turned and then bent over itself downwardly and towards the outside, so as to form a narrow double-thickness inturned flange 7, whose stiffness is considerable and whose internal diameter is greater than the diameter of the outer edge of the container mouth.
  • the inside diameter of the top part 302 of sleeve 2, immediately below flange 7, is substantially equal or slightly in excess of the outer diameter of the bottom disc 1, while the diameter of the part just below the edge of the bottom disc 1 is preferably restricted so as to trap the disc 1 under said flange.
  • This restriction can be etfected by conventional means, such as in-pressing, or by making said sleeve part inversely conical.
  • the marginal part of bottom disc 1 by superposing itself to the edge of the mouthpiece 3 is freely deformed and the underlying packing adapts itself perfectly to the irregularities of the container mouth. Furthermore, due to the inside diameter of sleeve 2 being, both in its lower part 102 and in its top part 302 considerably greater than the outside diameter of the mouthpiece 3, the cap according to the invention may perfectly fit ovalized container mouths.
  • This just described cap may be manufactured preferably by the method and means as shown in FIGURES 1 through 6.
  • a disc-shaped fiat sheet-metal blank is employed as starting material.
  • This blank (not shown) is first cupped so as to form a conventional cap C, having a substantially cylindrical skirt and afterwards, in the bottom thereof, a certain distance inside of its outer top edge, a discontinuous circular cut T is made, for example by means of tool A, as diagrammatically shown in the right half of FIGURE 3, which forms a bottom disc 1 connected to a narrow inturned flange by narrow strips S (FIGURE 6).
  • the diameter of the top part 302 of skirt 2 is reduced so as to cause this top part 302 of the skirt to stick or almost stick from the exterior to the peripheral edge of the bottom disc 1 and to form the conical step 202 of the skirt 2.
  • the said top part is restricted, or has a restricted section under the edge of disc 1.
  • the inside flange 107 formed at the top edge of the in-pressed cap C in the preceding working step, after the execution of the circular cut T, is superposed to the marginal part of bottom disc 1 and is folded upon itself, so as to form the inturned top flange 7 of lateral skirt 2.
  • bottom disc 1 and skirt 2 are automatically torn off so that this latter constitutes a separate sleeve.
  • the bottom disc 1 is completely Severed from the sleeve 2, it remains however trapped therein due to the in u ned flange 7 which is superposed to he mar- 4 ginal part of the bottom disc and the restricted part of the skirt below the disc edge.
  • a two piece metallic cap for closing a container mouth comprising a disc having a peripheral edge adapted to project beyond the edge of the container mouth; a sleeve having a top portion, a bottom portion of larger diameter than the top portion, and an annular step portion connecting said top and bottom portions, said top portion having a frusto-conical shape defined by a small base with a diameter smaller than said disc and a larger base with a diameter larger than said disc whereby said disc is entrapped in the top portion of said sleeve, said top portion having an inturned flange at its top edge projecting slightly beyond the peripheral edge of said disc, and said bottom portion having screw-threaded sections at its lower edge adapted to coact with anchoring screw threads on the container whereby threading of said bottom portion causes said inturned flange to force th peripheral edge of said disc against the container mouth.
  • a two piece cap for closing a container mouth comprising a continuous disc member dimensioned to span the mouth of the container and project a short distance beyond the edge of the container mouth and a backing on the underside of the disc member in the portion extending from the diameter of the container mouth and beyond, and a sleeve member having a top portion, a bottom portion of larger diameter than the top portion and an intermediate stepped portion connecting the top and bottom portions, the top portion being dimensioned to have a diameter greater than the outer diameter of the container mouth to provide an annular space therebetween, an annular flange extending inwardly from the upper edge of the top portion for a distance to extend beyond the outer peripheral edge portion of the disc member but short of the outer diameter of the container mouth, and means on the bottom portion of the sleeve for coaction with means on the container for holding the sleeve on the container with the flange bearing on the peripheral edge of the disc member to force the latter into sealing engagement with the container mouth.
  • a two piece cap as claimed in claim 2 in which the peripheral edge portion of the disc member is formed with a slight downward bend.
  • a two piece cap as claimed in claim 2 in which the flanged portion extending inwardly from the-upper edge of the top portion is turned inwardly substantially perpendicularly from the top portion and then doubled 5 6 back under to provide a flanged portion of considerable 2,288,349 6/1942 Gibbs 21544 XR stiffness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US728079A 1965-05-19 1968-05-09 Metallic cap provided with a separate bottom disc Expired - Lifetime US3446381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1189165 1965-05-19

Publications (1)

Publication Number Publication Date
US3446381A true US3446381A (en) 1969-05-27

Family

ID=11138558

Family Applications (1)

Application Number Title Priority Date Filing Date
US728079A Expired - Lifetime US3446381A (en) 1965-05-19 1968-05-09 Metallic cap provided with a separate bottom disc

Country Status (9)

Country Link
US (1) US3446381A (sh)
BE (1) BE681223A (sh)
CH (1) CH463295A (sh)
DE (1) DE1525563A1 (sh)
DK (1) DK123012B (sh)
GB (1) GB1151443A (sh)
LU (1) LU51129A1 (sh)
NL (1) NL6606729A (sh)
OA (1) OA02231A (sh)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836033A (en) * 1972-03-23 1974-09-17 A Podesta Closure cap
US4135866A (en) * 1977-08-29 1979-01-23 Reliance Glass Works Laboratory glassware taper connector system with retainer and backup seal
EP1918041A1 (en) * 2006-10-31 2008-05-07 Crown Packaging Technology, Inc Metal closure with disc and method for producing such a metal closure with separate disc and ring from a single closure blank
US20090236353A1 (en) * 2008-03-20 2009-09-24 Crown Packaging Technology, Inc. Closure edge protection via polymer coated metal
WO2009115377A1 (en) 2008-03-20 2009-09-24 Crown Packaging Technology, Inc. Closure
US20100200102A1 (en) * 2009-02-09 2010-08-12 Zeyfang Frederick W Two-piece pipe end cap
US20110036134A1 (en) * 2008-04-21 2011-02-17 Crown Packaging Technology, Inc. Cutting method and apparatus
US8733576B2 (en) 2002-06-11 2014-05-27 Crown Packaging Technology, Inc. Easily openable can lid having a movable portion for pull tab access
US20140263339A1 (en) * 2013-03-15 2014-09-18 Amcor Limited Container finish for metal lug closure
US9694946B2 (en) 2014-04-11 2017-07-04 Silgan White Cap LLC Metal closure with low pressure engagement lugs
USD793307S1 (en) * 2015-03-17 2017-08-01 Yuan-Hung WEN Brake backing plate with heat sink
US9968983B2 (en) 2011-04-20 2018-05-15 Crown Packaging Technology, Inc. Method for forming a metal closure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9708253A (pt) * 1996-03-26 1999-08-03 Carnaudmetalbox Nv Fecho compósito e processo de montagem da faixa e do disco na fabricação de um fecho compósito e de fechamento de um recipiente
GB9606378D0 (en) 1996-03-26 1996-06-05 Metal Box Plc Composite closures for containers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137725A (en) * 1913-01-18 1915-04-27 Martin King Metallic cap for receptacles.
US2008593A (en) * 1932-06-27 1935-07-16 Phoenix Metal Cap Co Inc Jar closure
US2130746A (en) * 1930-07-18 1938-09-20 Anchor Cap & Closure Corp Two-piece ketchup cap
US2148169A (en) * 1932-09-30 1939-02-21 Empire Metal Cap Co Inc Receptacle closure and method of manufacture thereof
US2288349A (en) * 1938-12-01 1942-06-30 Anchor Cap & Closure Corp Method of making closure caps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137725A (en) * 1913-01-18 1915-04-27 Martin King Metallic cap for receptacles.
US2130746A (en) * 1930-07-18 1938-09-20 Anchor Cap & Closure Corp Two-piece ketchup cap
US2008593A (en) * 1932-06-27 1935-07-16 Phoenix Metal Cap Co Inc Jar closure
US2148169A (en) * 1932-09-30 1939-02-21 Empire Metal Cap Co Inc Receptacle closure and method of manufacture thereof
US2288349A (en) * 1938-12-01 1942-06-30 Anchor Cap & Closure Corp Method of making closure caps

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836033A (en) * 1972-03-23 1974-09-17 A Podesta Closure cap
US4135866A (en) * 1977-08-29 1979-01-23 Reliance Glass Works Laboratory glassware taper connector system with retainer and backup seal
US8733576B2 (en) 2002-06-11 2014-05-27 Crown Packaging Technology, Inc. Easily openable can lid having a movable portion for pull tab access
AU2007316140B2 (en) * 2006-10-31 2012-01-19 Crown Packaging Technology, Inc. Method for producing a twist metal closure with seperate disc and ring from a single closure blank
EP1918041A1 (en) * 2006-10-31 2008-05-07 Crown Packaging Technology, Inc Metal closure with disc and method for producing such a metal closure with separate disc and ring from a single closure blank
WO2008053014A1 (en) 2006-10-31 2008-05-08 Crown Packaging Technology, Inc Method for producing such a metal closure with seperate disc and ring from a single closure blank
EA016389B1 (ru) * 2006-10-31 2012-04-30 Краун Пэкэджинг Текнолоджи, Инк. Способ изготовления металлического укупорочного средства с отделенным диском и кольцом из единой заготовки укупорочного средства
US20100003109A1 (en) * 2006-10-31 2010-01-07 Crow Packaging Technology, Inc. Method for producing such a metal closure with seperate disc and ring from a single closure blank
EP2228152A1 (en) * 2006-10-31 2010-09-15 Crown Packaging Technology Inc A metal closure with separate disc and ring from a single closure blank
EP2253396A1 (en) * 2006-10-31 2010-11-24 Crown Packaging Technology Inc Method for producing a metal closure with separate disc and ring from a single closure blank
US8899091B2 (en) * 2006-10-31 2014-12-02 Crown Packaging Technology, Inc. Method for producing such a metal closure with separate disc and ring from a single closure blank
US20110011866A1 (en) * 2008-03-20 2011-01-20 Crown Packaging Technology, Inc. Closure
WO2009115377A1 (en) 2008-03-20 2009-09-24 Crown Packaging Technology, Inc. Closure
US8210377B2 (en) 2008-03-20 2012-07-03 Crown Packaging Technology, Inc. Closure edge protection via polymer coated metal
US8636161B2 (en) 2008-03-20 2014-01-28 Crown Packaging Technology, Inc. Closure
EA019267B1 (ru) * 2008-03-20 2014-02-28 Краун Пэкэджинг Текнолоджи, Инк. Крышка
US20090236353A1 (en) * 2008-03-20 2009-09-24 Crown Packaging Technology, Inc. Closure edge protection via polymer coated metal
US9387959B2 (en) 2008-03-20 2016-07-12 Crown Packaging Technology, Inc. Closure
CN101977821B (zh) * 2008-03-20 2014-10-29 皇冠包装技术公司 封闭件
US20110036134A1 (en) * 2008-04-21 2011-02-17 Crown Packaging Technology, Inc. Cutting method and apparatus
US20100200102A1 (en) * 2009-02-09 2010-08-12 Zeyfang Frederick W Two-piece pipe end cap
US9968983B2 (en) 2011-04-20 2018-05-15 Crown Packaging Technology, Inc. Method for forming a metal closure
US9096356B2 (en) * 2013-03-15 2015-08-04 Amcor Limited Container finish for metal lug closure
US20140263339A1 (en) * 2013-03-15 2014-09-18 Amcor Limited Container finish for metal lug closure
US9718588B2 (en) 2013-03-15 2017-08-01 Amcor Limited Container finish for metal lug closure
US9731871B2 (en) 2013-03-15 2017-08-15 Amcor Limited Container finish for metal lug closure
US9856056B2 (en) 2013-03-15 2018-01-02 Amcor Group Gmbh Container finish for metal lug closure
US9868568B2 (en) 2013-03-15 2018-01-16 Amcor Group Gmbh Container finish for metal lug closure
US9694946B2 (en) 2014-04-11 2017-07-04 Silgan White Cap LLC Metal closure with low pressure engagement lugs
US10364070B2 (en) 2014-04-11 2019-07-30 Silgan White Cap LLC Metal closure with low pressure engagement lugs
USD793307S1 (en) * 2015-03-17 2017-08-01 Yuan-Hung WEN Brake backing plate with heat sink

Also Published As

Publication number Publication date
LU51129A1 (sh) 1966-07-18
CH463295A (fr) 1968-09-30
DE1525563A1 (de) 1969-04-10
DK123012B (da) 1972-05-08
GB1151443A (en) 1969-05-07
NL6606729A (sh) 1966-11-21
OA02231A (fr) 1970-05-05
BE681223A (sh) 1966-10-31

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