US3690497A - Closure cap and package formed therewith - Google Patents

Closure cap and package formed therewith Download PDF

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Publication number
US3690497A
US3690497A US122049A US3690497DA US3690497A US 3690497 A US3690497 A US 3690497A US 122049 A US122049 A US 122049A US 3690497D A US3690497D A US 3690497DA US 3690497 A US3690497 A US 3690497A
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US
United States
Prior art keywords
gasket
closure
frusto
cap
relatively
Prior art date
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Expired - Lifetime
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US122049A
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English (en)
Inventor
Frank H Lecinski Jr
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
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Continental Can Co Inc
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Filing date
Publication date
Application filed by Continental Can Co Inc filed Critical Continental Can Co Inc
Application granted granted Critical
Publication of US3690497A publication Critical patent/US3690497A/en
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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/0457—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements the sealing element covering or co-operating with the screw-thread or the like of a container neck

Definitions

  • the gasket materials used in the closure caps of the present invention are preferably formed of plastisol type gasket compounds of known type (e.g. as described in US. Pat. No. 2,841,304) which are moulded or flowed into the cap shells in known manner using commercially available equipment and techniques.
  • the closure caps of the present invention are intended for use on containers formed of glass or other materials wherein the gasket engaging surfaces include a flat top seal finish and a side seal finish having thread formations thereon or therein.
  • the plastisol gasket material within the skirt portions of the closure cap shells conforms to the thread formations and takes a set so that complementary thread formations are efi'ectively formed in the plastisol gasket material.
  • the resulting complementary thread formations in the gasket material serve to earn up the closure caps when the same are rotated so that the caps may be readily removed (i.e. unscrewed) from the containers.
  • a further object of the invention is the provision of closure caps of the press-on turn-off type having the above-mentioned innovations and improvements wherein the depending skirt portions of the caps are essentially straight sided for cooperation with thread formations in the side finish of the container wherein the crests of the threads lie in essentially a vertical cylinder thereby eliminating the tightening effect and increase in removal torque due to any closure settling that may occur.
  • FIG. 1 is a top plan view of a closure cap forming one embodiment of the present invention
  • FIG. 2 is a vertical sectional view taken on line 2-2 of FIG. 1 with the closure cap superposed over the neck or mouth of a container having the proper gasketengaging finish;
  • FIG. 3 is a fragmentary sectional view on an enlarged scale of the right hand portion of the closure cap as shown in FIG. 2;
  • FIG. 4 is a fragmentary sectional view on an enlarged scale corresponding to FIG. 3 showing the relationship between the closure cap and the gasket-engaging finish of the container neck or mouth.
  • a closure cap is indicated generally at 5 comprising a cap shell or body which has a top panel portion 6 and a depending skirt or sidewall portion 7.
  • the cap 5 is lined with an integral ring gasket having a top seal portion 8 that lies within the gasket channel of the cap indicated at 10 and a side seal portion 1 l lining the inner surface of the cap skirt 7.
  • the central portion of the top panel 6 of the cap body is preferably raised with a particular formation that forms a tamper-tell button 12.
  • This button 12 may be made in accordance with the disclosure of Foster US. Pat. No. 3,160,302.
  • the button 12 will be held inwardly or downwardly depressed under the influence of the vacuum.
  • the cap 5 is rotated or tampered with so as to break the vacuum then the depressed button portion 12 snaps outwardly with an audible click.
  • the cap bodies or shells may be stamped or otherwise formed from tin plate, aluminum sheet, or other suitable material on a mass production basis in a well known manner using known equipment.
  • the shells or bodies may be suitably enameled, lacquered or otherwise coated or surface-treated on the interiors and exteriors with protective and decorative enamels or coatings which are well known in the closure cap art.
  • the ring gasket 8, 11 within the cap body is preferably formed of a plastisol'of known composition and may be of the so-called puffed variety if desired.
  • the gasket may be deposited or molded into the cap shell in known manner such as in accordance with the teachings of US. Pat. Nos. 3,360,148 or 3,473,683.
  • the lined or gasketed caps are submitted to a fluxing operation of known type wherein the plastisols are fluxed into their final resilient rubber-like condition.
  • the gasket retaining channel 10 of the cap body which serves to retain the top fmish-engaging portion 8 of the gasket is formed by a frusto-conical or straight inclined annular inner wall portion 15 and an arcuate or curved outer wall portion 16.
  • the top seal gasket portion 8 of the ring gasket which is retained in the gasket channel 10 fills this channel substantially flush and when produced in accordance with the teachings of Owen US. Pat. No.
  • the then inner margin of the gasket section 8 terminates in a cut ofi' rib or ridge 17
  • the radial width or dimension of the frusto-conical inner sidewall 15 of the top seal gasket channel 10 is approximately twice the radial width of the arcuate outer sidewall 16. While this particular relationship is not critical, the frusto-conical inner wall 15 should be substantially wider than the outer arcuate portion.
  • the depending skirt 7 of the cap 5 has a cylindrical upper section 18 which merges into a frusto-conical section 20 which merges into a relatively wide or deep cylindrical section 21.
  • the bottom end of the skirt is in the form of an outwardly flared inwardly curled bead 22 formed in the usual manner.
  • the vertical or side seal portion 11 of the gasket is relatively thick until it thins out into a feather edge at the bottom where the cap shell flares outwardly into the head or curl 22.
  • the mouth 25 of the glass container 19 has both a top seal finish and a side seal finish, referring to the surfaces of the top or rim and the outer side wall of the container mouth 25. These are the surfaces of the container 19 which engage the gaket material in the cap 5 and are made to specific dimensions with closely controlled tolerances.
  • the top seal finish of the container mouth includes a relatively wide flat annular surface 26 which at the inner edge merges with the vertical inside surface at a circumferential comer 27 which is referred to in the art as the inside top radius.
  • This inside top radius 27 provides a smooth but relatively abrupt inner edge or comer which has the specific and important function of deeply indenting the top seal gasket portion 8 at an intermediate part of the frusto-conical channel wall 15.
  • the side seal finish of the container 5 has a slightly tapered upper portion 30 and a cylindrical lower portion 31. Intermediate these portions the side finish is provided with protruding thread formations 32 the crests of which lie in a generally vertical cylinder surface. It will be understood that while the thread formations 32 constitute portions of one continuous thread they may take the form of a plurality of partial threads as shown in FIG. 4 of US. Pat. No. 3,270,904.
  • the caps 5 are applied to containers 19 with a generally straight-down motion which the side seal portion 11 of the gasket deforms sufficiently so as to pass over the thread formations.
  • the head space within the filled containers will be filled with steam when the closure caps are applied.
  • the resulting vacuum serves to tightly retain the closure caps on the container mouth or neck.
  • the inside top radius 27 of the container finish deeply indents the top seal portion 8 of the ring gasket opposite, to close proximity to a narrow intermediate band portion of the frusto-conical section 15 of the gasket channel.
  • the gasket material 8 is pinched or squeezedin both directions with respect to the relatively narrow inner comer 27 so that only a relatively thin section 35 of gasket material remains to separate the glass at the comer 27 from the opposing frusto-conical wall 15.
  • This section 35 has appreciable radial width. Because of the thinness of the section 35 and its appreciable radial width it constitutes a barrier path which offers a high degree of resistance to oxygen permeation inwardly into the container or package contacts. In other words, permeation of the gasket is confined to travelling through this very thin section which constitutes a relatively long (i.e. radially wide) and narrow path for the gas travel.
  • This relationship or co-action between the top inside corner or inside top radius 27 of the glass finish and the opposing frusto-conical section 15 of the gasket retaining channel 10 also serves a further function. That is, this relationship prevents and limits downward settling of the cap 5 on the container finish 25. This in turn prevents tightening of the compressive embracing aca cylindrical surface) any slight settling of the cap 5 that does occur will not produce a tightening effect with respect to the threads.
  • a closure cap comprising a cap body and a fluxed plastisol integral ring gasket therein having top seal and side seal portions, said cap body having a top panel and a depending skirt, the annular margin of said top panel being in the form of a gasketretaining channel and having a relatively wide frustoconical inner portion which extends from the center portion of said top panel upwardly and outwardly to a relatively narrow outer arcuate portion, said integral ring gasket lining said channel and said depending skirt, said top and side seal portions of said container closure-engaging finish and said cap body skirt and gasket material-retaining channel being so relatively proportioned that when said closure cap is in full sealing engagement on said closure-engaging finish said relatively abrupt inside top radius deeply indents said gasket material to close proximity to a narrow intermediate band of said frusto-conical portion of said gasket retaining channel.
  • a press-on, turn-off closure cap comprising a cap body and a fluxed plastisol integral ring gasket therein having top seal and side seal portions, said cap body having a top panel and a depending skirt, the annular margin of said top panel being in the form of a gasket-retaining channel and having a relatively wide frusto-conical inner portion which extends from the center portion of said top panel upwardly and outwardly to a relatively narrow outer arcuate portion, said integral ring gasket lining said channel and said depending skirt, said top and side seal portions of said container closure-engaging finish and said cap body skirt and gasket material-retaining channel being so relatively proportioned that when said closure cap is in full sealing engagement on said closure-engaging finish said relatively abrupt inside top radius deeply indents said gasket material to close proximity to a narrow intermediate band of said f
  • said frusto-conical inner portion of said gasket-retaining channel having a radial width appreciably greater than the radial width of said flat top seal portion of said closure-engaging finish.
  • said frusto-conical inner portion of said gasket material channel having a radial width at least about 1.5 times the radial width of said relatively narrow outer arcuate portion thereof.
  • said frusto-conical inner portion of said gasket retaining channel having an angle of inclination not exceeding about 30.
  • said gasket retaining channel having a radial width at least about 1.5 times the radial width of said flat top seal portion of said closure-eng ng finish.
  • said thread-like camming formations being exterior thread formations with the crests lying in a vertical cylinder.
  • a closure cap for a container having a closure-engaging finish which includes a flat top seal portion with a relatively abrupt inside top radius and an exterior side seal portion having exterior thread-like camming formations thereon, said closure cap comprising a cap body and a fluxed plastisol integral ring gasket therein having top seal and side seal portions, said cap body having a top panel and a depending skirt, the annular margin of said top panel being in the form of a gasketretaining channel and having a relatively wide frustoconical inner portion which extends from the center portion of said top panel upwardly and outwardly to a relatively narrow arcuate portion, said integral ring gasket substantially filling said channel and lining said depending skirt.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US122049A 1971-03-08 1971-03-08 Closure cap and package formed therewith Expired - Lifetime US3690497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12204971A 1971-03-08 1971-03-08

Publications (1)

Publication Number Publication Date
US3690497A true US3690497A (en) 1972-09-12

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US122049A Expired - Lifetime US3690497A (en) 1971-03-08 1971-03-08 Closure cap and package formed therewith

Country Status (6)

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US (1) US3690497A (enrdf_load_stackoverflow)
CA (1) CA969129A (enrdf_load_stackoverflow)
DE (1) DE2153685C3 (enrdf_load_stackoverflow)
FR (1) FR2128719B1 (enrdf_load_stackoverflow)
GB (1) GB1391071A (enrdf_load_stackoverflow)
ZA (1) ZA714773B (enrdf_load_stackoverflow)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000825A (en) * 1974-05-22 1977-01-04 Continental Can Company, Inc. Press-on twist-off infestation-proof closure for oxygen sensitive products
US4227616A (en) * 1979-06-21 1980-10-14 The Continental Group, Inc. Molded gasket press-on closure
DE3326682A1 (de) * 1982-07-27 1984-02-02 Continental White Cap, Inc., 60062 Northbrook, Ill. Behaelterhals fuer zum oeffnen axial abdrueckbare und zum wiederverschliessen axial aufdrueckbare verschlusskappen
US4552279A (en) * 1984-09-14 1985-11-12 Owens-Illinois, Inc. Container closure
US4562930A (en) * 1984-03-13 1986-01-07 Continental White Cap, Inc. Container finish for resealing with PT closure
US4603786A (en) * 1985-04-02 1986-08-05 Continental White Cap, Inc. Press-on closure for resealable glass finish
US4709825A (en) * 1982-09-15 1987-12-01 Owens-Illinois Closure Inc. Press-on twist-off closure for container
US4863030A (en) * 1988-08-01 1989-09-05 Anchor Hocking Corporation Press-on, twist-off plastisol-lined metal closure
US4981230A (en) * 1990-03-15 1991-01-01 Continental White Cap, Inc. Composite cap including tamper indicating band
US5062538A (en) * 1989-09-01 1991-11-05 Anchor Hocking Packaging Company Package with pressure venting closure accepting different types of insert disks for different food products
US5101994A (en) * 1991-04-03 1992-04-07 Silgan Plastics Corporation Container with an aligning cap and neck construction
US5692628A (en) * 1996-01-11 1997-12-02 Rexam Closure, Inc. Press-on screw-off self-tapping closure/container package
US20060186081A1 (en) * 2005-02-21 2006-08-24 Penn-Wheeling Closure, Llc Bottle cap and method therefor
US20080093394A1 (en) * 2006-10-24 2008-04-24 J.L. Clark, Inc. Metal and plastic dispensing lid
US20080283486A1 (en) * 2004-07-29 2008-11-20 Sven-Ake Magnusson Closure for a Container, Especially a Bottle
US20080302799A1 (en) * 2007-06-08 2008-12-11 Silgan Containers Corporation Metal container with screw-top closure and method of making the same
US20100006574A1 (en) * 2006-10-02 2010-01-14 Crown Packaging Technology, Inc. Closure with sealing insert
US20150108132A1 (en) * 2012-05-08 2015-04-23 Crown Packaging Technology, Inc. Container with twist-off closure
US20150225106A1 (en) * 2012-09-19 2015-08-13 Vetropack Austria Gmbh Twist-off crown cap opening with splintering protection
US9868564B2 (en) 2012-05-08 2018-01-16 Crown Packaging Technology, Inc. Metal container
US11242176B2 (en) * 2016-02-23 2022-02-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Closure element for a container
US20220297905A1 (en) * 2021-03-22 2022-09-22 Superb Sealing Solutions, Llc Mason container lid
US20220313552A1 (en) * 2021-03-30 2022-10-06 Merit Medical Systems, Inc. Vacuum drainage collection bottle with vacuum indicator
WO2022262290A1 (zh) * 2021-06-18 2022-12-22 广州星际悦动股份有限公司 漱口水包装瓶
US11643254B2 (en) * 2013-07-02 2023-05-09 Silgan Holdings Inc. Closure unit consisting of cover and vessel, closure cover and closing method
US12208949B2 (en) 2021-03-22 2025-01-28 Superb Sealing Solutions, Llc Mason container lid
US12280197B2 (en) 2020-09-14 2025-04-22 Merit Medical Systems, Inc. Vacuum drainage collection bottle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371813A (en) * 1966-05-13 1968-03-05 Continental Can Co Press-on turn-off closure cap
US3448881A (en) * 1967-05-02 1969-06-10 Continental Can Co Closure with means to control opening torque
US3532243A (en) * 1968-01-09 1970-10-06 Anchor Hocking Corp Closure cap with molded threads

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1000118A (en) * 1960-10-17 1965-08-04 Owens Illinois Glass Co Improved closure assembly for containers
US3168208A (en) * 1962-04-13 1965-02-02 William L Ericson Sealing closure incorporating linear motion strain wave drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371813A (en) * 1966-05-13 1968-03-05 Continental Can Co Press-on turn-off closure cap
US3448881A (en) * 1967-05-02 1969-06-10 Continental Can Co Closure with means to control opening torque
US3532243A (en) * 1968-01-09 1970-10-06 Anchor Hocking Corp Closure cap with molded threads

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000825A (en) * 1974-05-22 1977-01-04 Continental Can Company, Inc. Press-on twist-off infestation-proof closure for oxygen sensitive products
US4227616A (en) * 1979-06-21 1980-10-14 The Continental Group, Inc. Molded gasket press-on closure
DE3326682A1 (de) * 1982-07-27 1984-02-02 Continental White Cap, Inc., 60062 Northbrook, Ill. Behaelterhals fuer zum oeffnen axial abdrueckbare und zum wiederverschliessen axial aufdrueckbare verschlusskappen
US4444325A (en) * 1982-07-27 1984-04-24 Continental White Cap, Inc. Closure and pry-off resealable finish
AU580925B2 (en) * 1982-07-27 1989-02-02 Continental White Cap, Inc. Closure and pry-off resealable finish
US4709825A (en) * 1982-09-15 1987-12-01 Owens-Illinois Closure Inc. Press-on twist-off closure for container
US4562930A (en) * 1984-03-13 1986-01-07 Continental White Cap, Inc. Container finish for resealing with PT closure
US4552279A (en) * 1984-09-14 1985-11-12 Owens-Illinois, Inc. Container closure
US4603786A (en) * 1985-04-02 1986-08-05 Continental White Cap, Inc. Press-on closure for resealable glass finish
EP0196922A3 (en) * 1985-04-02 1988-08-24 Continental White Cap, Inc. Press-on closure for resealable glass finish
US4863030A (en) * 1988-08-01 1989-09-05 Anchor Hocking Corporation Press-on, twist-off plastisol-lined metal closure
US5062538A (en) * 1989-09-01 1991-11-05 Anchor Hocking Packaging Company Package with pressure venting closure accepting different types of insert disks for different food products
US4981230A (en) * 1990-03-15 1991-01-01 Continental White Cap, Inc. Composite cap including tamper indicating band
US5101994A (en) * 1991-04-03 1992-04-07 Silgan Plastics Corporation Container with an aligning cap and neck construction
US5692628A (en) * 1996-01-11 1997-12-02 Rexam Closure, Inc. Press-on screw-off self-tapping closure/container package
US20080283486A1 (en) * 2004-07-29 2008-11-20 Sven-Ake Magnusson Closure for a Container, Especially a Bottle
US20060186081A1 (en) * 2005-02-21 2006-08-24 Penn-Wheeling Closure, Llc Bottle cap and method therefor
US8424706B2 (en) * 2006-10-02 2013-04-23 Crown Packaging Technology, Inc. Closure with sealing insert
US20100006574A1 (en) * 2006-10-02 2010-01-14 Crown Packaging Technology, Inc. Closure with sealing insert
US20080093394A1 (en) * 2006-10-24 2008-04-24 J.L. Clark, Inc. Metal and plastic dispensing lid
US20080302799A1 (en) * 2007-06-08 2008-12-11 Silgan Containers Corporation Metal container with screw-top closure and method of making the same
USD734155S1 (en) 2007-06-08 2015-07-14 Silgan Containers Llc Screw-top container
USD690599S1 (en) 2007-06-08 2013-10-01 Silgan Containers Llc Screw-top container
USD703057S1 (en) 2007-06-08 2014-04-22 Silgan Containers Llc Screw-top container
USD676764S1 (en) 2007-06-08 2013-02-26 Silgan Containers Llc Screw-top container
US9868564B2 (en) 2012-05-08 2018-01-16 Crown Packaging Technology, Inc. Metal container
US9617043B2 (en) * 2012-05-08 2017-04-11 Crown Packaging Technology, Inc. Container with twist-off closure
US20150108132A1 (en) * 2012-05-08 2015-04-23 Crown Packaging Technology, Inc. Container with twist-off closure
US20150225106A1 (en) * 2012-09-19 2015-08-13 Vetropack Austria Gmbh Twist-off crown cap opening with splintering protection
US9731858B2 (en) * 2012-09-19 2017-08-15 Vetropack Austria Gmbh Twist-off crown cap orifice with splintering protection
US11643254B2 (en) * 2013-07-02 2023-05-09 Silgan Holdings Inc. Closure unit consisting of cover and vessel, closure cover and closing method
US11242176B2 (en) * 2016-02-23 2022-02-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Closure element for a container
US12280197B2 (en) 2020-09-14 2025-04-22 Merit Medical Systems, Inc. Vacuum drainage collection bottle
US20220297905A1 (en) * 2021-03-22 2022-09-22 Superb Sealing Solutions, Llc Mason container lid
US11697533B2 (en) * 2021-03-22 2023-07-11 Superb Sealing Solutions, Llc Mason container lid
US12208949B2 (en) 2021-03-22 2025-01-28 Superb Sealing Solutions, Llc Mason container lid
US20220313552A1 (en) * 2021-03-30 2022-10-06 Merit Medical Systems, Inc. Vacuum drainage collection bottle with vacuum indicator
WO2022262290A1 (zh) * 2021-06-18 2022-12-22 广州星际悦动股份有限公司 漱口水包装瓶

Also Published As

Publication number Publication date
GB1391071A (en) 1975-04-16
FR2128719B1 (enrdf_load_stackoverflow) 1977-04-01
DE2153685C3 (de) 1975-12-18
DE2153685B2 (de) 1975-05-07
FR2128719A1 (enrdf_load_stackoverflow) 1972-10-20
DE2153685A1 (enrdf_load_stackoverflow) 1972-09-14
CA969129A (en) 1975-06-10
ZA714773B (en) 1973-02-28

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