US3360148A - Closure with a molded ring gasket - Google Patents

Closure with a molded ring gasket Download PDF

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Publication number
US3360148A
US3360148A US502999A US50299965A US3360148A US 3360148 A US3360148 A US 3360148A US 502999 A US502999 A US 502999A US 50299965 A US50299965 A US 50299965A US 3360148 A US3360148 A US 3360148A
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US
United States
Prior art keywords
gasket
closure
flash
shell
molded
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
US502999A
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English (en)
Inventor
Ronald C Owen
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 US502999A priority Critical patent/US3360148A/en
Priority to DE1657632A priority patent/DE1657632C3/de
Priority to GB44112/66A priority patent/GB1089080A/en
Priority to BE688457A priority patent/BE688457A/xx
Priority to FR80788A priority patent/FR1501126A/fr
Application granted granted Critical
Publication of US3360148A publication Critical patent/US3360148A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/78—Moulding material on one side only of the preformed part
    • B29C70/80—Moulding sealing material into closure members
    • 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
    • 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
    • B65D41/0442—Collars or rings
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/02—Collars or rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
    • B29C43/184—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould shaped by the compression of the material during moulding
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00277—Metal
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527—NO contact
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/0075—Rolled edge
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00796—Totality
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00953—Sealing means
    • B65D2543/00962—Sealing means inserted
    • B65D2543/00972—Collars or rings

Definitions

  • ABSTRACT OF THE DISCLOSURE A closure cap having a molded gasket with a portion of reduced thickness at its inner periphery, which portion terminates in a sharply defined raised bead to form a flash free cutoff of the gasket. A method of molding the gasket and the molding punch used are also disclosed.
  • This invention relates to a closure and method of manufacturing the same. More specifically, the present invention is directed to a novel gasket design having a flash free, sharply defined termination of the gasket material at the inner margin after it has been molded or shaped to the desired cross sectional configuration.
  • the present invention relates to a novel gasket design and method of forming the same which permits the rapid flash free production of molded type gaskets for closure caps and like applications.
  • a novel shaping punch is provide-d to form a sharply defined or flash free termination of-the gasket material at the inner peripheral margin.
  • FIG. 1 is a diametric cross section of a closure cap having a ring of unshaped gasket compound deposited therein;
  • FIG. 2 is a cross sectional view of the cap of FIG. 1 supported on a platen and shaped by a punch shown fragmentarily;
  • FIG. 3 is an enlarged view of the encircled portion 3 of FIG. 2.
  • reference character 10 indicates a closure shell having a flat top panel 11 and skirt 12 which may be terminated in a rolled edge 13.
  • the rolled edge 13 may be flattened as at 14 to form retainer lugs for co-operation with lugs, threads or the like on a container finish. Any suitable form of retention means may be used in lieu of that illustrated.
  • the top panel may have a depressed stacking panel portion 15 adjacent the outer margins to permit stacking of containers thereon during display of the finished package.
  • annular gasket groove 16 which has a flat bottom 17 merging at its outer periphery with an axially directed wall 18 which is joined to a portion of increased diameter 20 through a radial wall portion 19. Disposed within the channel or gasket groove 16 is a measured amount of plastomeric material 21 which is metered into the groove in a manner to be described below. While the gasket material is shown as having an arcuate cross sectional configuration, it may take any shape or form which would naturally occur when placed in the shell 10 for subsequent shaping.
  • the annular layer of gasket compound 21 has been deposited in the shell 10 by a fixed nozzle located above the shell 10 while the latter is rotating at approximately 600 to 1,500 rpm. on a suitable work holder.
  • the nozzle may have an orifice from about 0.040 to 0.100 inch in diameter and is located sufficiently close to the shell 10 to cause adherence of the gasket material 21 to the usual coating on the shell upon release from the nozzle.
  • the gasket material may be formed of a moldable compound such as a plastomeric composition of vinyl resin particles, plasticizer and lubricant, and is essentially insoluble at room temperature or the temperature of application which may be up to about F.
  • the plastomeric material is placed in the annular gasket groove 16 adjacent the outer peripheral portion of the shell 10 and is so located whereby it will co-operate with a molding or shaping punch in the manner shown in FIG. 2.
  • the viscosity of the material is such that it is relatively stable and retains the shape assumed after placement in the shell 10 at least until the molding or shaping step is initiated.
  • a platen 22 is provided with a shell supporting surface which engages the stacking panel and also provides continuous support beneath the gasket groove 16.
  • a novel molding or shaping punch 24 is providel with a gasket forming groove 26 adjacent its outer margin which groove may assume any desired configuration suitable for co-operation with the container finish to which the cap is applied.
  • the gasket forming surface 25 is of a generally flat frustoconical design having a relieved outer margin 26 which, in the final position, is spaced from the 'arcuate portion joining the radially extending wall portion 19 and axially directed wall 18 forming one side of the gasket groove 16.
  • the molding punch 24 may be heated by suitable means to a temperature of the order of 275-400 F.
  • the platen 22 may be heated by any suitable means such as an open flame 27 or an indirect heating means to elevate it to a temperature of from about 275 F. to about 350 F. Variations made within the specified temperature ranges will provide an optimum shaping time for the specific gasket compound used.
  • the punch 24 is provided with gasket forming surfaces 25 and 26, the latter forming a rounded outer periphery 32 on the gasket.
  • the frusto-conical or inwardly tapering surface 25 terminates in a flat end portion 28 which is axially raised relative to the gasket forming surface 25.
  • the axially raised surface 28 engages the flat underside of the stacking panel 15 to form a flash barrier to preclude inward flow of the mold material 21 during shaping.
  • the present invention provides an annular relief groove 30 which opens axially and is disposed immediately adjacent the axially raised top panel engaging portion 28.
  • the volume of this groove will be at least equal to the maximum volume of gasket material on the positive side of the tolerance. Stated in another manner, if the accuracy of depositing the gasket material 21 has been of the order of 35% of the total weight, the volume of the groove 30 should be at least suflicient to accommodate a volume of gasket material equal to of the total weight of the gasket material.
  • any gasket material 21 which is extruded or flashed by the panel engaging axially raised surface 28 Will be allowed to expand and hence be trapped in the annular groove 30 to form a raised head 31 which terminates at its inner margin in a flash free edge 32.
  • the raised bead 31 and the main body of the gasket are joined through an axially and radially thin section represented by the heavy line 33. Accordingly, the raised bead at the inner margin assists in anchoring the main body of the gasket through the thin section to preclude tearing away and exposure of the coating on the shell.
  • a known type of adhesive primer may be provided on the inner surface of the shell and causes a solvent action to increase the bond or union between the primer and plastomeric gasket material to provide good adhesion.
  • the United States patents to Unger et al., No. 2,874,863, and Zipper, No. 2,841,304 adequately describe such a material.
  • the closure may subsequently come into contact with foodstuffs which are acidic or basic, it is essential that the protective coating covering the metal in the shell be adequately protected against scratches throughout the manufacturing operation as well as after completed. Since the flash barrier 28 is axially raised and generally flat, scarring or scuffing of the coating on the shell is unlikely to occur during molding, and if it should occur will be covered by the thin section of compound 33 joining the raised bead and gasket proper.
  • the shell containing the molded gasket is given an additional heat treatment of from about 2 to 4 minutes to cause a more complete dissolution of the particles in the plasticizer. While this operation is ordinarily performed immediately after molding of the gasket, it can be performed by a subsequent and completely independent operation which is spaced in time from the molding operation. Such final curing of the gasket may be performed by passing the shell through an oven on a conveyor for time suflicient t heat the cap and compound to about 350-100 F,
  • the above described apparatus and method is used to form a novel molded ring within a closure shell.
  • the ring is characterized by having a sharply defined inner margin which is flash free and may include a raised bead or anchoring portion. While a gasket groove has been shown in the drawing, it is obvious that the foregoing principles are applicable to the formation of a gasket on any shape of surface with or without a groove. Flash is avoided and closure seals manufactured in accordance with these principles may be produced at faster than predecessor types and the over-all quality of the finished product is particularly enhanced by the novel flash free molding technique.
  • a closure cap having a molded gasket formed in a flash free manner, said closure cap including a shell having a top panel joined to a skirt portion to form a gasket area, a layer of gasket material deposited in said area and overlying a portion of said skirt portion and said top panel, said gasket material having a flash free margin formed by the main body of said gasket material being joined to a flash film portion which is thin relative to said main body and said thin flash film portion termimating in an axially raised bead forming a sharp cutoff of said gasket material which is free of flash and the weight of which bead does not exceed 5% of the total weight of said gasket material.
  • a closure cap having a molded gasket which is formed in a flash free manner at least along one margin thereof, said closure cap including a shell having a top panel joined to a skirt portion thereby to form a gasket groove having a flat bottom, said flat bottom being joined to said top panel through a frusto-conical portion, a layer of gasket material in said groove having inner and outer peripheries, said gasket material in its finally shaped form being rounded at its outer periphery and tapering to a portion of reduced thickness at the inner periphery, said inner periphery having a raised bead formed inwardly of said tapering portion and radially inward of the junction of said frusto-conical portion forming one side of the gasket groove and said top panel, and joined thereto by a thin film to form a flash free cut-ofi portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Closures For Containers (AREA)
  • Gasket Seals (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US502999A 1965-10-23 1965-10-23 Closure with a molded ring gasket Expired - Lifetime US3360148A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US502999A US3360148A (en) 1965-10-23 1965-10-23 Closure with a molded ring gasket
DE1657632A DE1657632C3 (de) 1965-10-23 1966-07-07 Verfahren zum Herstellen einer Dichtungseinlage für eine Verschluß kappe
GB44112/66A GB1089080A (en) 1965-10-23 1966-10-03 Improvements in or relating to closures for containers
BE688457A BE688457A (xx) 1965-10-23 1966-10-19
FR80788A FR1501126A (fr) 1965-10-23 1966-10-20 Capsule de bouchage avec joint annulaire moulé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US502999A US3360148A (en) 1965-10-23 1965-10-23 Closure with a molded ring gasket

Publications (1)

Publication Number Publication Date
US3360148A true US3360148A (en) 1967-12-26

Family

ID=24000341

Family Applications (1)

Application Number Title Priority Date Filing Date
US502999A Expired - Lifetime US3360148A (en) 1965-10-23 1965-10-23 Closure with a molded ring gasket

Country Status (5)

Country Link
US (1) US3360148A (xx)
BE (1) BE688457A (xx)
DE (1) DE1657632C3 (xx)
FR (1) FR1501126A (xx)
GB (1) GB1089080A (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473683A (en) * 1968-08-06 1969-10-21 Continental Can Co Closure with molded ring gasket
US3828963A (en) * 1972-02-11 1974-08-13 Continental Can Co Recessed crown cap
US4114775A (en) * 1976-03-11 1978-09-19 Japan Crown Cork Co., Ltd. Cap with sealing liner
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
US5213231A (en) * 1981-09-18 1993-05-25 Precision Valve Corporation Aerosol container closure
EP0838326A1 (en) * 1996-10-24 1998-04-29 SACMI COOPERATIVA MECCANICI IMOLA S.c.r.l. Apparatus for molding a plastic seal inside a closure for closing a container
EP1145977A1 (de) * 2000-04-06 2001-10-17 White Cap Europe GmbH Stapelung begünstigender Nockenverschluss
US20030098287A1 (en) * 2000-08-09 2003-05-29 James Taber Closure cap with injection molded annular gasket and method of making same
US20050189355A1 (en) * 2004-03-01 2005-09-01 Masterchem Industries, Inc. Container cap
EP2090416A1 (de) * 2008-02-12 2009-08-19 Till Isensee Verfahren zur Herstellung eines Dosendeckels
US20100052210A1 (en) * 2008-09-02 2010-03-04 Berry Plastics Corporation Compression-molded closure liner
WO2010136307A1 (en) * 2009-05-29 2010-12-02 Crown Packaging Technology, Inc. Manufacture of closures for food containers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322914A (en) * 1919-11-25 jlobjetz
US2327454A (en) * 1939-11-02 1943-08-24 Continental Can Co Padless crown cap
FR1019711A (fr) * 1949-05-10 1953-01-26 Paper Cap Mfg Company Ltd Couvercle pour bocaux ou bouteilles à maintenir sous vide
US2700186A (en) * 1949-06-15 1955-01-25 Anchor Hocking Glass Corp Method of making closure caps
US3110409A (en) * 1961-10-26 1963-11-12 Continental Can Co Closure cap for glass containers
US3187920A (en) * 1962-07-23 1965-06-08 Continental Can Co Resilient liner and cap for closing containers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322914A (en) * 1919-11-25 jlobjetz
US2327454A (en) * 1939-11-02 1943-08-24 Continental Can Co Padless crown cap
FR1019711A (fr) * 1949-05-10 1953-01-26 Paper Cap Mfg Company Ltd Couvercle pour bocaux ou bouteilles à maintenir sous vide
US2700186A (en) * 1949-06-15 1955-01-25 Anchor Hocking Glass Corp Method of making closure caps
US3110409A (en) * 1961-10-26 1963-11-12 Continental Can Co Closure cap for glass containers
US3187920A (en) * 1962-07-23 1965-06-08 Continental Can Co Resilient liner and cap for closing containers

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473683A (en) * 1968-08-06 1969-10-21 Continental Can Co Closure with molded ring gasket
US3828963A (en) * 1972-02-11 1974-08-13 Continental Can Co Recessed crown cap
US4114775A (en) * 1976-03-11 1978-09-19 Japan Crown Cork Co., Ltd. Cap with sealing liner
US5213231A (en) * 1981-09-18 1993-05-25 Precision Valve Corporation Aerosol container 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
EP0838326A1 (en) * 1996-10-24 1998-04-29 SACMI COOPERATIVA MECCANICI IMOLA S.c.r.l. Apparatus for molding a plastic seal inside a closure for closing a container
US6007315A (en) * 1996-10-24 1999-12-28 Sacmi Cooperative Meccanici Imola S.C.R.L. Apparatus for molding a plastic seal inside a closure for closing a container
EP1145977A1 (de) * 2000-04-06 2001-10-17 White Cap Europe GmbH Stapelung begünstigender Nockenverschluss
US20030098287A1 (en) * 2000-08-09 2003-05-29 James Taber Closure cap with injection molded annular gasket and method of making same
US20080272514A1 (en) * 2000-08-09 2008-11-06 Silgan Holdings Inc. Closure Cap With Injection Molded Annular Gasket and Method of Making Same
US7740785B2 (en) * 2000-08-09 2010-06-22 James Taber Closure cap with injection molded annular gasket and method of making same
US20050189355A1 (en) * 2004-03-01 2005-09-01 Masterchem Industries, Inc. Container cap
EP2090416A1 (de) * 2008-02-12 2009-08-19 Till Isensee Verfahren zur Herstellung eines Dosendeckels
US20100052210A1 (en) * 2008-09-02 2010-03-04 Berry Plastics Corporation Compression-molded closure liner
US8268216B2 (en) 2008-09-02 2012-09-18 Berry Plastics Corporation Process of forming a compression-molded closure liner
WO2010136307A1 (en) * 2009-05-29 2010-12-02 Crown Packaging Technology, Inc. Manufacture of closures for food containers

Also Published As

Publication number Publication date
BE688457A (xx) 1967-03-31
GB1089080A (en) 1967-11-01
FR1501126A (fr) 1967-11-10
DE1657632C3 (de) 1973-11-22
DE1657632A1 (de) 1972-03-16
DE1657632B2 (de) 1973-05-03

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