US3189208A - Closures, more especially for containers - Google Patents
Closures, more especially for containers Download PDFInfo
- Publication number
- US3189208A US3189208A US352220A US35222064A US3189208A US 3189208 A US3189208 A US 3189208A US 352220 A US352220 A US 352220A US 35222064 A US35222064 A US 35222064A US 3189208 A US3189208 A US 3189208A
- Authority
- US
- United States
- Prior art keywords
- container
- tubing
- heat
- closure
- shrunk
- 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
Links
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 210000003739 neck Anatomy 0.000 description 14
- 239000000463 material Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 239000004793 Polystyrene Substances 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- FDQGNLOWMMVRQL-UHFFFAOYSA-N Allobarbital Chemical class C=CCC1(CC=C)C(=O)NC(=O)NC1=O FDQGNLOWMMVRQL-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Images
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
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/54—Caps or cap-like covers made of shrinkable material or formed in situ by dipping, e.g. using gelatine or celluloid
-
- 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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/06—Making preforms having internal stresses, e.g. plastic memory
- B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
-
- 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
- B65D41/24—Caps or cap-like covers made of shrinkable material or formed in situ by dipping, e.g. using gelatine or celluloid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
- B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
Definitions
- the proposed method of applying such closures is to cut the tubing into conveniently short lengths, to place these lengths of tubing over the necks of bottles which have been closed by stoppers orthe like and then to subect the neck ot" the bottle to heat so that the tubing shrinks
- the present invention provides a shaped structure for the production in situ of a closure for a container, said structure consisting of a tube of heat-shrinkable thermoplastic material which has been heat sealed at one end, and being of such dimensions in relation to the container to be closed thereby that it can be placed over an opening of the container and shrunk by heat to conform to the outline of the container.
- the structure according to the invention has the advantage that it provides a complete closure for a container such as a bottle, being capable of extending continuously over the top of the container. It is also inexpensive and surprisingly neat in appearance when shrunk into place. It may be used as a secondary closure, or may itself form a primary closure, if necessary being provided with an inner sealing wad. It may also be used as a primary closure for means other than containers, for example as a temporary closure for apertures in machines, engineering components and the like.
- the heat sealed end of the structure is generally concave towards the interior thereof.
- the heat seal may, for example, extend in the form of a curved line across the end of the tube, said line having a radius of curvature which is smaller towards the ends than in the middle.
- the structure is of such thickness and rigidity that when applied to a container of which the said outline is in the form of a screw thread, and shrunk thereon, it can be removed from the container by an unscrewing movement and subsequently replaced thereon as required. It can thus form a simple and inexpensive screw cap useful as a primary closure,
- this structure may comprise a ring with open top capable of forming a closure with a cap, wad or the like and being removeable and replaceable as specified.
- the structure may have a skirt portion divided by a line of weakness from a main closure portion.
- the arrangement can then be such that the skirt portion is held by a corresponding portion of the container against rotation with the main closure portion when the latter is unscrewed from the container so that the skirt portion is parted from the cloto fit closely over the bottle and the stopper or primary sure portion and remains on the container.
- the skirt portion can alternatively be secured in position by means of adhesive.
- FIG. 1 is an elevation of a shaped structure according to the invention before it has been applied to a container
- FIG. 2 is a sectional elevation of a threaded bottle neck with a closure formed by means of a shaped structure as shown in FIG. 1
- FIG. 3 is a plan view corresponding to FIG. 2.
- FIG. 1 of the drawings a shaped structure 1 for application to a bottle neck having an external diameter of approximately 1% inches isfcrmed from 2" Wide flat tubing of thermoplastic material which has been molecularly orientated by internal information under the influence ofheat, and subsequently cooled to re, tain it at the inflated dimension.
- the tubing thus has the property of being heat-shrinkable, that is to say that when heated it will tend to to inflation.
- the curve comprises a central arcua ate portion a which has a centre of curvature at a point P on the central axis of the fiat tube, and a radius of curvature of 2 /2 inches, and two symmetrical arcuate end portions b having centres of curvature Q on the radii to the ends of the are a, and radii of curvature of 1 inch each.
- the are a extends over an angle of approximately 25.
- the structure is open at the lower end, and has a lower skirt portion 3, which is partially separated from the body of the structure by a line of perforations 4.
- the structure hasbeen applied in this manner to a threaded bottle neck 5.
- the structure thus takes the form of a cap, beneath which a sealing wad 6 has been applied to the mouth of the bottle. Owing to the shape of the heat sealed end 2 of the structure, this end has now shrunk to conform closely to the flat sealing wad 6, while the remainder of the structure has the same shape as the profile of the bottleneck.
- the perforations 4 are located adjacent the lower terminus of the threaded portion 5a of the bottle neck, so that the skirt portion 3 is located on an unthreaded portion 5b of the neck.
- the portion 5! is provided with radial pips 7 to prevent the skirt portion 3 from turning relatively thereto. If desired, the: pips 7 may be dispensed with and the skirt portion 3 secured by means of an adhesive.
- the structure 1 is formed of material of sufiicient thickness and rigidity, it can be removed together with the sealing wad 6 from the bottle neck 5, by unscrewing in the manner of a normal screw cap. In this operation, the skirt portion 3 will remain on the bottle neck, being (separated from the structure 1 at the line of weakness formed by the perforations 4. The structure can then be replaced on the bottle as desired, the separated skirt 3 serving as an indication that it has once been removed.
- the structure 1 may be applied to the bottle neck 5 in the form of a ring instead of a cap, the closure in its final form would then be similar to that shown in FIG. 2 except that instead of extending fully over the top of the sealing wad 6 the structure 1 would terminate in the form of an inturned flange extending to the dotted lines X.
- Suitable material for the structure 1 of the above described embodiments is polystyrene tubing of 0.01 inch thickness (or 0.02 inch when folded fiat to form a double Wall), which has been inflated during orientation at a blow ratio of 5:1, that is to say the inflated tube has a diameter which is 5 times the diameter of the tube before inflation.
- This material is convenient to handle during formation of the shaped structure of FIG. 1, while still having a sufiicient measure of stability to allow it to be removed and replaced on the screw top bottle in the manner described.
- the structure 11 may be adapted for use as a secondary closure or a disposable primary closure, more especially for a container of other than threaded form.
- the structure is not provided with perforations 4, and may be made of less rigid material, for example polystyrene of less wall thickness, or polyvinyl chloride.
- the material is polystyrene of 0.006" double wall thickness.
- Shaped structures as described above may be formed in a continuous operation from fiat heat shrinkable tubing by heat sealing the tube in conventional manner, using a shaped heated bar, and simultaneously cutting the tube by means of separate cutter blades. It is important, however, that the time and pressure of application of the bar to the material of the structure, and also the tem perature of the bar, should be carefully controlled to avoid substantial shrinkage of the material during the heat sealing operation.
- the bar should have a temperature of 130 C.-150 C.
- the pressure per inch of the bar should be from 60-120 lbs.
- the time of contact should be less than 0.1 second.
- Equivalent figures for polyvinyl chloride are: temperature 180 C.-210 0; pressure per inch of bar, 60l20 lbs.; time less than 0.3 second.
- the material of the structure adjacent the seal may be cooled, if desired, by means of an air blast, suitable shielding then being interposed between the air blast and the heat bar.
- the material of the tube is preferably supported on a resilient base during heat sealing thereof.
- a shaped structure for the production in situ of a closure for a container consisting of a length of heat-shrinkable thermoplastic tubing in flat form and closed at one end by means of a line heat-seal extending across the full width of the fiat tubing, the tubing being of such transverse dimension in relation to the container to be closed that the said structure can be placed over an opening of the container and shrunk to fit the same, and the profile of the heat sealed end of the tubing being generally concave towards the interior thereof so that when the structure is so shrunk the closed end thereof will conform to the outline of the container.
- a shaped structure as claimed in claim it of such thickness and rigidity that when applied to a container of which the said outline is in the form of a screw thread, and shrunk thereon, it can be removed from the container by an unscrewing movement and subsequently replaced thereon as required.
- a shaped structure for the production in situ of a closure for a container consisting of a length of heat shrinkable thermoplastic tubing in flat form and closed at one end by means of a line heat seal extending across the full width of the tubing, the profile of the heat seal being concave towards the interior of the tubing so that when the structure is placed over an opening in the container and shrunk to fit the same the closed end of the structure will present a substantially flat surface extending over said opening, a line of weakness extending across the Width of the tubing to define, at the open end of the tubing, a skirt portion partially divided from the main closure portion, and the tubing being of such thickness and rigidity that, when the container is provided at said opening with a screw threaded upper neck portion and an irregular lower neck portion, the main closure portion of the shrunk-on structure can be removed from said upper neck portion by an unscrewing movement and subsequently replaced, while the skirt portion will part from the main closure portion rather than be removed from said lower neck portion.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10884/63A GB1015713A (en) | 1963-03-19 | 1963-03-19 | Improvements in and relating to closures for containers |
Publications (1)
Publication Number | Publication Date |
---|---|
US3189208A true US3189208A (en) | 1965-06-15 |
Family
ID=9976093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US352220A Expired - Lifetime US3189208A (en) | 1963-03-19 | 1964-03-16 | Closures, more especially for containers |
Country Status (4)
Country | Link |
---|---|
US (1) | US3189208A (zh) |
DE (1) | DE1753633B1 (zh) |
GB (1) | GB1015713A (zh) |
NL (2) | NL6402957A (zh) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3409710A (en) * | 1965-01-19 | 1968-11-05 | Continental Can Co | Method of molding dual wall container and closure |
US3720343A (en) * | 1971-11-19 | 1973-03-13 | Erin Ind Inc | Tamper proof bottle cap |
US3951292A (en) * | 1974-10-15 | 1976-04-20 | Owens-Illinois, Inc. | Pilfer-proof neckband for a bottle |
US4018640A (en) * | 1974-10-15 | 1977-04-19 | Owens-Illinois, Inc. | Decorative neckband label for a bottle |
FR2331851A1 (fr) * | 1975-11-17 | 1977-06-10 | Owens Illinois Inc | Etiquette decorative destinee a etre apposee sur le goulot et le boucho |
US4033472A (en) * | 1974-08-19 | 1977-07-05 | Albert Obrist Ag | Closure for containers |
US4119128A (en) * | 1977-02-18 | 1978-10-10 | Marilyn Bishop | Tamperproof sterile port cover and method of making same |
US4196820A (en) * | 1978-10-11 | 1980-04-08 | Institut Fur Leichtbau Und Okonomische Verwendung Von Werkstoffen | Fluid tight closure of thermosetting plastic foil |
US4294367A (en) * | 1976-09-21 | 1981-10-13 | Asahi Breweries Ltd. | Container having rimmed shrink cap |
US4384654A (en) * | 1981-06-08 | 1983-05-24 | Aluminum Company Of America | Tear-off closure |
US4538740A (en) * | 1983-12-27 | 1985-09-03 | Fantasy Flavors, Inc. | Tamper resistant closure |
US4545494A (en) * | 1983-02-16 | 1985-10-08 | Sawicki Nina P | Tamper indicating cover |
US20050077263A1 (en) * | 2003-10-10 | 2005-04-14 | Garcia Omar Alcides | Bottle stopper |
US20080035665A1 (en) * | 2004-09-08 | 2008-02-14 | Melissa Edmunds | Container Cover and Dispenser Therefor |
US8511472B2 (en) | 2010-08-16 | 2013-08-20 | Kraft Foods Group Brands Llc | Containers having perforated shrink wrap sleeves |
JP2014046953A (ja) * | 2012-08-31 | 2014-03-17 | Kyoraku Co Ltd | パンク修理剤の保存容器 |
US9902542B2 (en) | 2016-04-15 | 2018-02-27 | Colgate-Palmolive Company | Container apparatus |
US10189618B2 (en) | 2016-04-15 | 2019-01-29 | Colgate-Palmolive Company | Container apparatus |
US11427392B2 (en) * | 2018-07-09 | 2022-08-30 | Heat Seal Llc | Packaging for food and beverage |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2119887A1 (en) * | 1970-12-31 | 1972-08-11 | Duvicq Jean | Heat shrink bottle cap - for tamperproof and leakproof sealing of resealing |
US4724973A (en) * | 1987-04-07 | 1988-02-16 | Smithkline Beckman Corporation | Tamper evident container seal |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2328845A (en) * | 1939-03-14 | 1943-09-07 | Wingfoot Corp | Method of making tamperproof closure bands |
US2331794A (en) * | 1941-12-27 | 1943-10-12 | Wingfoot Corp | Production of tamperproof seals |
US2790286A (en) * | 1953-05-11 | 1957-04-30 | Goodyear Tire & Rubber | Secondary closures |
US2954139A (en) * | 1956-12-12 | 1960-09-27 | Celon Company | Tear strip for seals |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT24125B (de) * | 1904-12-30 | 1906-05-10 | Max Dr Engels | Flaschenverschluß aus Zelluloid. |
US2027962A (en) * | 1933-03-03 | 1936-01-14 | Nat Carbon Co Inc | Production of articles from plastic compositions |
GB468762A (en) * | 1935-01-30 | 1937-07-12 | Nat Carbon Co Inc | Improvements in and relating to closure means and seals for bottles, cans and other like containers |
US2289618A (en) * | 1940-01-16 | 1942-07-14 | Wingfoot Corp | Sealing device and method |
DE911541C (de) * | 1951-12-31 | 1954-05-17 | Reinhold Hagen | Verfahren und Vorrichtung zum UEberziehen der Griffschenkel von Zangen od. dgl. mit Isolierhuellen aus thermoplastischen Massen, insbesondere Polyvinylchlorid |
-
0
- NL NL136193D patent/NL136193C/xx active
-
1963
- 1963-03-19 GB GB10884/63A patent/GB1015713A/en not_active Expired
-
1964
- 1964-03-16 US US352220A patent/US3189208A/en not_active Expired - Lifetime
- 1964-03-17 DE DE19641753633D patent/DE1753633B1/de active Pending
- 1964-03-19 NL NL6402957A patent/NL6402957A/xx unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2328845A (en) * | 1939-03-14 | 1943-09-07 | Wingfoot Corp | Method of making tamperproof closure bands |
US2331794A (en) * | 1941-12-27 | 1943-10-12 | Wingfoot Corp | Production of tamperproof seals |
US2790286A (en) * | 1953-05-11 | 1957-04-30 | Goodyear Tire & Rubber | Secondary closures |
US2954139A (en) * | 1956-12-12 | 1960-09-27 | Celon Company | Tear strip for seals |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3409710A (en) * | 1965-01-19 | 1968-11-05 | Continental Can Co | Method of molding dual wall container and closure |
US3720343A (en) * | 1971-11-19 | 1973-03-13 | Erin Ind Inc | Tamper proof bottle cap |
US4033472A (en) * | 1974-08-19 | 1977-07-05 | Albert Obrist Ag | Closure for containers |
US3951292A (en) * | 1974-10-15 | 1976-04-20 | Owens-Illinois, Inc. | Pilfer-proof neckband for a bottle |
US4018640A (en) * | 1974-10-15 | 1977-04-19 | Owens-Illinois, Inc. | Decorative neckband label for a bottle |
FR2331851A1 (fr) * | 1975-11-17 | 1977-06-10 | Owens Illinois Inc | Etiquette decorative destinee a etre apposee sur le goulot et le boucho |
US4294367A (en) * | 1976-09-21 | 1981-10-13 | Asahi Breweries Ltd. | Container having rimmed shrink cap |
US4119128A (en) * | 1977-02-18 | 1978-10-10 | Marilyn Bishop | Tamperproof sterile port cover and method of making same |
US4196820A (en) * | 1978-10-11 | 1980-04-08 | Institut Fur Leichtbau Und Okonomische Verwendung Von Werkstoffen | Fluid tight closure of thermosetting plastic foil |
US4384654A (en) * | 1981-06-08 | 1983-05-24 | Aluminum Company Of America | Tear-off closure |
US4545494A (en) * | 1983-02-16 | 1985-10-08 | Sawicki Nina P | Tamper indicating cover |
US4538740A (en) * | 1983-12-27 | 1985-09-03 | Fantasy Flavors, Inc. | Tamper resistant closure |
US20050077263A1 (en) * | 2003-10-10 | 2005-04-14 | Garcia Omar Alcides | Bottle stopper |
US20080035665A1 (en) * | 2004-09-08 | 2008-02-14 | Melissa Edmunds | Container Cover and Dispenser Therefor |
US7908823B2 (en) * | 2004-09-08 | 2011-03-22 | Melissa Edmunds | Container cover and dispenser therefor |
US20110220650A1 (en) * | 2004-09-08 | 2011-09-15 | Melissa Edmunds | Container Cover and Dispenser Therefor |
US8534486B2 (en) | 2004-09-08 | 2013-09-17 | Melissa Edmunds | Container cover and dispenser therefor |
US8511472B2 (en) | 2010-08-16 | 2013-08-20 | Kraft Foods Group Brands Llc | Containers having perforated shrink wrap sleeves |
JP2014046953A (ja) * | 2012-08-31 | 2014-03-17 | Kyoraku Co Ltd | パンク修理剤の保存容器 |
US9902542B2 (en) | 2016-04-15 | 2018-02-27 | Colgate-Palmolive Company | Container apparatus |
US10189618B2 (en) | 2016-04-15 | 2019-01-29 | Colgate-Palmolive Company | Container apparatus |
US11427392B2 (en) * | 2018-07-09 | 2022-08-30 | Heat Seal Llc | Packaging for food and beverage |
Also Published As
Publication number | Publication date |
---|---|
DE1753633B1 (de) | 1971-09-16 |
GB1015713A (en) | 1966-01-05 |
NL6402957A (zh) | 1964-09-21 |
NL136193C (zh) |
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