US3595419A - Closure and seal - Google Patents

Closure and seal Download PDF

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Publication number
US3595419A
US3595419A US855155A US3595419DA US3595419A US 3595419 A US3595419 A US 3595419A US 855155 A US855155 A US 855155A US 3595419D A US3595419D A US 3595419DA US 3595419 A US3595419 A US 3595419A
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United States
Prior art keywords
liner
cap
outer layers
intermediate layer
groove
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Expired - Lifetime
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US855155A
Inventor
Joseph Dukess
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TRI-SEAL INTERNATIONAL Inc A CORP OF NY
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Joseph Dukess
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Publication date
Application filed by Joseph Dukess filed Critical Joseph Dukess
Application granted granted Critical
Publication of US3595419A publication Critical patent/US3595419A/en
Assigned to ATLANTIC RESEARCH CORPORATION reassignment ATLANTIC RESEARCH CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TRI-SEAL INTERNATIONAL, INC.
Assigned to PRIVATBANKEN A/S, A DANISH BANKING CORPORATION reassignment PRIVATBANKEN A/S, A DANISH BANKING CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TRI-SEAL INTERNATIONAL, INC.
Anticipated expiration legal-status Critical
Assigned to TRI-SEAL INTERNATIONAL, INC., A CORP. OF DE reassignment TRI-SEAL INTERNATIONAL, INC., A CORP. OF DE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: ATLANTIC RESEARCH CORPORATION
Assigned to TRI-SEAL EXTRUSION, INC., A NEW YORK CORP. reassignment TRI-SEAL EXTRUSION, INC., A NEW YORK CORP. MERGER (SEE DOCUMENT FOR DETAILS). MAY 11 1990, NY. Assignors: TRI-SEAL INTERNATIONAL INC., A CORP. OF DE.
Assigned to TRI-SEAL INTERNATIONAL INC., A CORP. OF NY. reassignment TRI-SEAL INTERNATIONAL INC., A CORP. OF NY. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TRI-SEAL EXTRUSION INC., A CORP. OF NY.
Expired - Lifetime legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, 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
    • B65D41/02Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045Discs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1052Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062Prior to assembly
    • Y10T156/107Punching and bonding pressure application by punch
    • Y10T156/1072Closure cap liner applying type

Definitions

  • 215/40 liner is formed of a sandwich and so arranged that a com- [5 I] Int. Cl. 865d 53/04 pressible intermediate layer can be squeezed beyond the nor- [50] Field of Search 215/40, 43 mal periphery ofthe liner to engage the cap and make a better R seal.
  • This invention relates to a liner for a cap and to a combination cap and liner for use in providing closures for containers such as bottles, tubes, cans, and the like.
  • cap constructions utilizing liners have been devised in the past. These liners are employed to seal the contents of the container 7 preventing leaking between the threaded portions of a container neck and the cap by providing for a positive seal at the mouth of the container.
  • Such previous cap constructions and liners therefor have been a compromise between the requirement that the liner be stress and crack resistant while also being moisture impervious and impervious to chemicals and acids yet being bendableand compressible enough to provide .for an effective .seal.
  • the present invention overcomes the difficulties of the prior art caps and seals and has all of the advantages of these prior devices without the corresponding disadvantages while providing for satisfactory seal.
  • A, further advantage of these liners is that they are capable of being stamped out of stock without freezing.
  • One of the features of the invention resides in a cap and liner combination in which the liner is freely rotatable within the cap until such time as the mouth of the container is firmly against the liner compressing the liner so that an intermediate layer of the liner is compressed and expands outwardly thereby abutting against the sidewalls of the cap for making a most effective seal.
  • Still further objects and features of this invention reside in the provision of a cap and liner therefor that is capable of being extruded by conventional combination discs and which can be conveniently stamped to shape thereby permitting manufacture at a relatively low cost, and which is highly effective in use.
  • FIG. 1 is an exploded sectional detail view illustrating the cap and liner therefor;
  • FIG. 2 is a sectional detail view showing the cap liner therefor in a stage of being secured on the neck of a container;
  • FIG. 3 is an enlarged vertical detail view illustrating a pot tion of the cap and liner therefor as firmly secured on a container;
  • FIG. 4 is a partial sectional detail view ofthe liner
  • FIG. 5 is a view similar to FIG. 4 but showing the shape of the liner after it has been compressed when the cap has been tightly closed on the container.
  • reference numeral is used to generally designate a conventional container such as a bottle, tube, or can having a neck 12 which is threaded at 14.
  • a cap 16 is employed which includes cylindrical sidewalls 18 which are internally threaded at 20 and a top 22.
  • a cylindrical groove 24 is formed as the uppermost of the threads 20 and is for the purpose of receiving therein a liner 26.
  • the cap 16 is preferably molded out of any suitable synthetic plastic material and is adapted to gaging the threads 14.
  • the liner 26, see FIG. 4, is formed of a sandwich of outer layers 28, and 30, and an inner layer 32, the liner 26 preferably being stamped in the shape of a disc.
  • the outer layers 28 and 30 are formed of a low density polyethylene, such as that sold under the trademark Alathion 20. This material is stress resistant, crack resistant, relatively nonresilient, impervious and is extruded in a very thin layer in the order of approximately 1 V2 one-thousandths of an inch.
  • the intermediate layer 32 IS a thcrmoplastlc rubber like material such as butylene in polyethylene known as pliothene, or other resilient material such as ethylene vinyl acetate or the material sold under the trademark Karton, which is a thermoplastic rubber.
  • this material is resilient though not necessarily as resistant to stress and cracks/or as impervious to foreign substances as the material of the outer layers 28and 30.
  • the outer layers 28 and 30 are extruded at a temperature approximately 300 F. to 400 F. while the intermediate layer 32-.is extruded at approximately 220 F. to 320 F.
  • the various layers are brought together within a combination die and at about 300 F. for bonding within the combination die.
  • the resultant sheet material has a much increased resistance to distortion or stress, can be stamped without freezing and is impervious to chemicals and acids as well as moisture.
  • a closure device comprising a cap having a top and an internally threaded cylindrical sidewall, said sidewall having a groove therein adjacent said top, a liner normally rotatably disposed in said groove and including a disc having a pair of outer layers and an intermediate layer sandwiched between said outer layers and bonded thereto, saidouter layers being relatively thin and nonresilient, said intermediate layer being resilient and being compressible to form a lip extending beyond the periphery of said outer layers and into engagement with said sidewall in said groove, said intermediate layer being relatively thick.
  • a closure device according to claim 1, wherein said intermediate layer is from 12 to 30 times the thickness of said outer layers.

Abstract

A cap and liner therefor, the cap having a groove at the top thereof for rotatably receiving the liner. The liner is formed of a sandwich and so arranged that a compressible intermediate layer can be squeezed beyond the normal periphery of the liner to engage the cap and make a better seal.

Description

United States Patent 1 3,595,419
[72] Inventor Joseph Dukess [56] References Cited 931 Greacon Point. Mamaroneck, NCY. UNITED STATES PATENTS 21] APP No 2 2,039,757 5/1936 VonTill 215/40 x [22] Filed Sept. 3,1969 3,463,339 8/1969 McGuckm 215/38 [45] Patented July 27,1971 Primary Examiner-Donald F. Norton Attorney-Kenneth S. Goldfarb [54] 3 ABSTRACT: A cap and liner therefor, the cap having a raw 3 Figs groove at the top thereof for rotatably receiving the liner. The [52 U.S. Cl. 215/40 liner is formed of a sandwich and so arranged that a com- [5 I] Int. Cl. 865d 53/04 pressible intermediate layer can be squeezed beyond the nor- [50] Field of Search 215/40, 43 mal periphery ofthe liner to engage the cap and make a better R seal.
PATENIED JUL2 1 19?:
llllllulil CLOSURE AND SEAL This invention relates to a liner for a cap and to a combination cap and liner for use in providing closures for containers such as bottles, tubes, cans, and the like.
' Various types of cap constructions utilizing liners have been devised in the past. These liners are employed to seal the contents of the container 7 preventing leaking between the threaded portions of a container neck and the cap by providing for a positive seal at the mouth of the container. Such previous cap constructions and liners therefor have been a compromise between the requirement that the liner be stress and crack resistant while also being moisture impervious and impervious to chemicals and acids yet being bendableand compressible enough to provide .for an effective .seal. The present invention overcomes the difficulties of the prior art caps and seals and has all of the advantages of these prior devices without the corresponding disadvantages while providing for satisfactory seal. A, further advantage of these liners is that they are capable of being stamped out of stock without freezing.
One of the features of the invention resides in a cap and liner combination in which the liner is freely rotatable within the cap until such time as the mouth of the container is firmly against the liner compressing the liner so that an intermediate layer of the liner is compressed and expands outwardly thereby abutting against the sidewalls of the cap for making a most effective seal.
Still further objects and features of this invention reside in the provision of a cap and liner therefor that is capable of being extruded by conventional combination discs and which can be conveniently stamped to shape thereby permitting manufacture at a relatively low cost, and which is highly effective in use.
These, together with the various ancillary objects and features of this invention, which will become apparent as the following description proceeds, are attained by this closure and seal, a preferred embodiment of which is illustrated in the accompanying drawing by way of example only, wherein:
FIG. 1 is an exploded sectional detail view illustrating the cap and liner therefor;
FIG. 2 is a sectional detail view showing the cap liner therefor in a stage of being secured on the neck of a container;
FIG. 3 is an enlarged vertical detail view illustrating a pot tion of the cap and liner therefor as firmly secured on a container;
FIG. 4 is a partial sectional detail view ofthe liner; and
FIG. 5 is a view similar to FIG. 4 but showing the shape of the liner after it has been compressed when the cap has been tightly closed on the container.
With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral is used to generally designate a conventional container such as a bottle, tube, or can having a neck 12 which is threaded at 14. In order to provide a closure for the container 10a cap 16 is employed which includes cylindrical sidewalls 18 which are internally threaded at 20 and a top 22. In accordance with the concepts of the present invention a cylindrical groove 24 is formed as the uppermost of the threads 20 and is for the purpose of receiving therein a liner 26. The cap 16 is preferably molded out of any suitable synthetic plastic material and is adapted to gaging the threads 14.
The liner 26, see FIG. 4, is formed of a sandwich of outer layers 28, and 30, and an inner layer 32, the liner 26 preferably being stamped in the shape of a disc. The outer layers 28 and 30 are formed of a low density polyethylene, such as that sold under the trademark Alathion 20. This material is stress resistant, crack resistant, relatively nonresilient, impervious and is extruded in a very thin layer in the order of approximately 1 V2 one-thousandths of an inch. The intermediate layer 32 IS a thcrmoplastlc rubber like material such as butylene in polyethylene known as pliothene, or other resilient material such as ethylene vinyl acetate or the material sold under the trademark Karton, which is a thermoplastic rubber. Particularly, this material is resilient though not necessarily as resistant to stress and cracks/or as impervious to foreign substances as the material of the outer layers 28and 30. When the sandwich is manufactured by way of simultaneous multiple extrusion, the outer layers 28 and 30 are extruded at a temperature approximately 300 F. to 400 F. while the intermediate layer 32-.is extruded at approximately 220 F. to 320 F. The various layers are brought together within a combination die and at about 300 F. for bonding within the combination die. The resultant sheet material has a much increased resistance to distortion or stress, can be stamped without freezing and is impervious to chemicals and acids as well as moisture. However, when the disc 26 is inserted in the groove 24 in a normal state it will freely rotate therein permitting for effective setting of the disc 26 within the groove 24 and effective engagement of the mouth 15 of the container 10 against the undersurface 34 of the layer 30. Continued closure of the cap 16 will cause the resilient intermediate layer 32 to be compressed exuding a tongue 36 beyond the peripheral edges of the outer layers 28 and 30 and as shown in FIG. 3 against the inner wall of the groove 24 frictionally sealing the liner 26 with the cap 16. Thus, there is achieved an inner effective seal and closure for the contents of the container 10 than heretofore possible to achieve while retaining all of the desirable features of the nonresilient low density polyethylene which is used for the outer layers, and which are relatively thin so as to permit for an effectively resilient liner. It has been found that it is desirable that the intermediate layer 32 be between 12 to 30 times the normal width of each of the outer layers 28 and 30.
A latitude of modification, substitution and change is intended in the foregoing disclosure, and in some instances some features of the invention will be employed without a corresponding use of other features.
[claim I. A closure device comprising a cap having a top and an internally threaded cylindrical sidewall, said sidewall having a groove therein adjacent said top, a liner normally rotatably disposed in said groove and including a disc having a pair of outer layers and an intermediate layer sandwiched between said outer layers and bonded thereto, saidouter layers being relatively thin and nonresilient, said intermediate layer being resilient and being compressible to form a lip extending beyond the periphery of said outer layers and into engagement with said sidewall in said groove, said intermediate layer being relatively thick.
2. A closure device according to claim 1, wherein said intermediate layer is from 12 to 30 times the thickness of said outer layers.

Claims (2)

1. A closure device comprising a cap having a top and an internally threaded cylindrical sidewall, said sidewall having a groove therein adjacent said top, a liner normally rotatably disposed in said groove and including a disc having a pair of outer layers and an intermediate layer sandwiched between said outer layers and bonded thereto, said outer layers being relatively thin and nonresilient, said intermediate layer being resilient and being compressible to form a lip extending beyond the periphery of said outer layers and into engagement with said sidewall in said groove, said intermediate layer being relatively thick.
2. A closure device according to claim 1, wherein said intermediate layer is from 12 to 30 times the thickness of said outer layers.
US855155A 1969-09-03 1969-09-03 Closure and seal Expired - Lifetime US3595419A (en)

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US85515569A 1969-09-03 1969-09-03

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527691A1 (en) * 1975-06-21 1977-01-13 Joseph Dukess Disc seal for closure cap for containers - has thin, nonelastic layer and elastic compressible layer forming a lip
DE2637714A1 (en) * 1976-08-21 1978-02-23 Joseph William Dukess CAP LOCK
US4457440A (en) * 1982-07-06 1984-07-03 Joseph Dukess Cap liner having an intermediate layer of discrete strips
US4651886A (en) * 1986-07-14 1987-03-24 Gene Stull Screw cap with sealing liner
US4658976A (en) * 1983-04-15 1987-04-21 Aluminum Company Of America Lined plastic closure
US4793504A (en) * 1983-09-12 1988-12-27 Tbl Development Corporation Closure with containment of telltale means
US4858758A (en) * 1986-08-04 1989-08-22 The Clorox Company Oxidant bleach, container and fragrancing means therefor
US5579944A (en) * 1990-07-18 1996-12-03 Precision Valve Corporation Multi-layer gasket for an aerosol container
US5598940A (en) * 1991-09-06 1997-02-04 Tri-Seal International, Inc. Cap liner for hot filled container and method of making
US5694978A (en) * 1994-12-09 1997-12-09 Fresenius Ag Protective cap assembly for protecting and sealing a tubing
US5839592A (en) * 1995-06-09 1998-11-24 Anchor Hocking Packaging Co. Plastic closure
US20060278603A1 (en) * 2005-05-31 2006-12-14 Hiroaki Takashima Sealing mechanism for container opening
US20080197099A1 (en) * 2007-02-20 2008-08-21 Adam Pawlick Non-removable closure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039757A (en) * 1930-12-12 1936-05-05 Anchor Cap & Closure Corp Molded cap
US3463339A (en) * 1966-04-25 1969-08-26 Hamilton Co Sealing element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039757A (en) * 1930-12-12 1936-05-05 Anchor Cap & Closure Corp Molded cap
US3463339A (en) * 1966-04-25 1969-08-26 Hamilton Co Sealing element

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527691A1 (en) * 1975-06-21 1977-01-13 Joseph Dukess Disc seal for closure cap for containers - has thin, nonelastic layer and elastic compressible layer forming a lip
DE2637714A1 (en) * 1976-08-21 1978-02-23 Joseph William Dukess CAP LOCK
US4457440A (en) * 1982-07-06 1984-07-03 Joseph Dukess Cap liner having an intermediate layer of discrete strips
US4658976A (en) * 1983-04-15 1987-04-21 Aluminum Company Of America Lined plastic closure
US4793504A (en) * 1983-09-12 1988-12-27 Tbl Development Corporation Closure with containment of telltale means
US4651886A (en) * 1986-07-14 1987-03-24 Gene Stull Screw cap with sealing liner
US4858758A (en) * 1986-08-04 1989-08-22 The Clorox Company Oxidant bleach, container and fragrancing means therefor
US5579944A (en) * 1990-07-18 1996-12-03 Precision Valve Corporation Multi-layer gasket for an aerosol container
US5598940A (en) * 1991-09-06 1997-02-04 Tri-Seal International, Inc. Cap liner for hot filled container and method of making
US5601200A (en) * 1991-09-06 1997-02-11 Tri-Seal International, Inc. Cap liner for hot filled container and method
US5615789A (en) * 1991-09-06 1997-04-01 Tri-Seal International, Inc. Cap liner for hot filled container and method of making
US5694978A (en) * 1994-12-09 1997-12-09 Fresenius Ag Protective cap assembly for protecting and sealing a tubing
US5839592A (en) * 1995-06-09 1998-11-24 Anchor Hocking Packaging Co. Plastic closure
US20060278603A1 (en) * 2005-05-31 2006-12-14 Hiroaki Takashima Sealing mechanism for container opening
US8757410B2 (en) * 2005-05-31 2014-06-24 Hosokawa Yoko Co., Ltd. Sealing mechanism for a cylindrical container opening using a cap having a cap body and an upper lid
US20080197099A1 (en) * 2007-02-20 2008-08-21 Adam Pawlick Non-removable closure
US8113367B2 (en) * 2007-02-20 2012-02-14 Con Agra Foods RDM, Inc. Non-removable closure having a dispensing aperture extending therethrough

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AS Assignment

Owner name: ATLANTIC RESEARCH CORPORATION, 5390 CHEROKEE AVENU

Free format text: SECURITY INTEREST;ASSIGNOR:TRI-SEAL INTERNATIONAL, INC.;REEL/FRAME:004357/0858

Effective date: 19850102

AS Assignment

Owner name: PRIVATBANKEN A/S, 450 PARK AVENUE, NEW YORK, NY 1

Free format text: SECURITY INTEREST;ASSIGNOR:TRI-SEAL INTERNATIONAL, INC.;REEL/FRAME:004367/0398

Effective date: 19850111

AS Assignment

Owner name: TRI-SEAL INTERNATIONAL, INC., A CORP. OF DE, NEW Y

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:ATLANTIC RESEARCH CORPORATION;REEL/FRAME:005321/0319

Effective date: 19900509

AS Assignment

Owner name: TRI-SEAL INTERNATIONAL INC., A CORP. OF NY.

Free format text: CHANGE OF NAME;ASSIGNOR:TRI-SEAL EXTRUSION INC., A CORP. OF NY.;REEL/FRAME:005432/0244

Effective date: 19891221

Owner name: TRI-SEAL EXTRUSION, INC., A NEW YORK CORP.

Free format text: MERGER;ASSIGNOR:TRI-SEAL INTERNATIONAL INC., A CORP. OF DE.;REEL/FRAME:005432/0237

Effective date: 19891221