US20050167389A1 - Closure with improved resistance to deformation during opening - Google Patents
Closure with improved resistance to deformation during opening Download PDFInfo
- Publication number
- US20050167389A1 US20050167389A1 US10/771,713 US77171304A US2005167389A1 US 20050167389 A1 US20050167389 A1 US 20050167389A1 US 77171304 A US77171304 A US 77171304A US 2005167389 A1 US2005167389 A1 US 2005167389A1
- Authority
- US
- United States
- Prior art keywords
- skirt
- area
- lower rim
- thickness
- closure
- 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.)
- Abandoned
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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
- B65D41/32—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
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
- B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges
Definitions
- This invention relates generally to closure caps for containers, such as carbonated beverage containers.
- the invention relates to an improved closure that is constructed so as to mitigate deformation that would otherwise tend to occur as the closure is being removed from the finish portion of a container.
- Conventional mating closure caps and bottle finish structures for carbonated beverage containers typically utilize a screw type or threaded arrangement between the closure cap and the finish portion.
- These types of screw caps are mass produced by injection or compression molding and have achieved commercial success mainly in the soft drink industry, where they are applied robotically to the finish portions of filled soft drink bottles on rapidly moving filling lines.
- screw-type closure caps for carbonated beverage bottles One important factor in the design of screw-type closure caps for carbonated beverage bottles is that of ensuring that the connection between the cap and the finish portion of the container is properly vented, so as to permit compressed gases from within the container to be released gradually as the cap is unscrewed by the consumer. To achieve the necessary venting, it is common for the threads of the finish portions of conventional soft drinks containers to be intermittent as opposed to a continuous helix. It is also common for the internal threads of the closure caps to have periodic gas venting gaps. Another important consideration in the design of such closures involves the quality of engagement between the closure thread and the threads on the finish portion of the container as the closure is removed from the container.
- Deformation of the closure that is caused by plastic creep of the closure may have the effect of deforming the closure cap from its original substantially cylindrical configuration into a more oval shape, which decreases the quality of engagement between the threads on the closure and the threads on the finish portion of the container.
- the creep is a permanent deformation of the plastic caused by stress. This stress is caused by the pressure of the carbonated beverage in the bottle at higher temperatures, and is also caused by higher temperatures softening the plastic over time. The effect is most pronounced when the threads of the closure are close to the open end of the closure, since there is less support to keep the closure in its original form.
- FIGS. 1 and 2 depict a conventional closure 10 having a top wall 12 and a substantially cylindrical skirt 14 defining an inner surface 16 , an outer surface 18 and a lower rim 20 .
- the lower rim 20 is configured so as to possess a minimum width W 2 which in this example is 0.0364 in.
- the outer surface 18 of the skirt 14 may be provided with a plurality of flute projections 22 to enhance grippability by a consumer.
- a plurality of thread projections are defined on inner surface 16 of skirt 14 , including a lowermost thread 24 that is positioned so as to be spaced from the lower rim 20 by an axial distance H T , which in this example is 0.095 in.
- a tamper evident band 26 including a J-hook portion 28 is frangibly attached to the lower rim 20 of the skirt 14 .
- Skirt 14 is further molded so as to define an annular recess 29 having a width W 1 (0.0228 in.) and a height H 1 (0.0240 in.) on the inner surface 16 thereof between the lowermost thread 24 and the lower rim 20 of the skirt 14 .
- a reference circle 30 is provided so as to make visible the deformation mentioned above.
- a first diameter D 1 of the closure 10 was measured at 1.2095 in.
- a second diameter D 2 was measured at 1.2450 in. This example illustrates the magnitude of the deformation that is likely to occur using conventional closures.
- a plastic closure for a container includes a top wall; a downwardly depending substantially cylindrical skirt that is unitary with the top wall, the skirt defining inner and outer surfaces and further defining a lower rim at a distal, bottom end thereof; at least one thread that is defined on the inner surface of the skirt; and reinforcing structure defined on the skirt in an area between the lower rim and a lowermost thread on the inner surface for enhancing the dimensional integrity of the closure during opening.
- FIG. 1 is a fragmentary cross-sectional diagrammatic depiction of a portion of a conventional closure
- FIG. 2 is a bottom plan view of the conventional closure that is shown in FIG. 1 ;
- FIG. 3 is a fragmentary cross-sectional diagrammatic depiction of a portion of a closure constructed according to a preferred embodiment of the present invention.
- FIG. 4 is a bottom plan view of the embodiment that is depicted in FIG. 3 .
- a closure cap 40 that is constructed according to a preferred embodiment of the invention includes a top wall 42 and a downwardly depending substantially cylindrical skirt 44 defining an inner surface 16 , and outer surface 18 and a lower rim 46 that is positioned at a distal, bottom end thereof.
- a plurality of threads are defined on the inner surface 16 of the downwardly depending skirt 44 , including a lowermost thread 24 that is positioned more closely to the lower rim 46 then any of the other threads.
- a plurality of flutes 22 may be defined on the outer surface 18 in order to enhance grippability of the closure 40 .
- a tamper evident band 48 having a J-hook portion 50 is as is conventional frangibly attached to the lower rim 46 .
- reinforcing structure 52 is defined on the skirt 44 in an area between the lower rim 46 and the lowermost thread 24 for enhancing the dimensional integrity of the closure 40 during opening.
- reinforcing structure 52 includes an area of increased skirt thickness between the lower rim 46 and the lowermost thread 24 .
- Thiickness as the term is used herein means thickness in a radial direction, in other words in a direction that is perpendicular to a longitudinal axis of the closure 40 , and is indicated as W T in FIG. 3 .
- “Increased” skirt thickness means that this area is thicker then the corresponding area on conventional closures, such as the conventional closure that is depicted in FIGS. 1 and 2 described above.
- This area of increased skirt thickness preferably has a relatively smooth inner surface extending unbroken about the inner periphery of the lowermost portion of the skirt 44 so as to define a cylindrical inner surface beneath the lowermost thread 24 .
- this area of increased skirt thickness is at least about 0.05 in. in maximum thickness. More preferably, this area of increased skirt thickness is at least about 0.06 in. in maximum thickness, and most preferably it is at least about 0.07 in. in maximum thickness.
- a ratio of the width W T of the area 52 of increased skirt thickness to the outer diameter D C of the skirt 44 is preferably at least about 0.04, and more preferably at least about 0.05.
- the product calculated by multiplying the width W T and a vertical, axial distance H T between the lower rim 46 and the lowermost point of the peak of the lowermost thread 24 is preferably at least about 0.0040, more preferably at least about 0.0045 and most preferably at least about 0.0048.
- the outer surface 18 extends at an angle ⁇ with respect to vertical that is preferably within a range of about 16 to about 28 degrees, and that is more preferably about 22 degrees.
- the angle is greater than that of the conventional closure described above, which was about 14 degrees, which permits an increase in the thickness W T .
- a closure 40 according to the preferred embodiment of the invention was constructed so as to have an outer diameter Dc of 1.2180 in., a thickness W T of 0.0702 in. and a height H T of 0.070 in. This closure was determined to possess substantially improved hoop strength characteristics with respect to conventional closures such as those described above.
Abstract
Description
- 1. Field of the Invention
- This invention relates generally to closure caps for containers, such as carbonated beverage containers. In particular, the invention relates to an improved closure that is constructed so as to mitigate deformation that would otherwise tend to occur as the closure is being removed from the finish portion of a container.
- 2. Description of the Related Technology
- Conventional mating closure caps and bottle finish structures for carbonated beverage containers typically utilize a screw type or threaded arrangement between the closure cap and the finish portion. These types of screw caps are mass produced by injection or compression molding and have achieved commercial success mainly in the soft drink industry, where they are applied robotically to the finish portions of filled soft drink bottles on rapidly moving filling lines.
- One important factor in the design of screw-type closure caps for carbonated beverage bottles is that of ensuring that the connection between the cap and the finish portion of the container is properly vented, so as to permit compressed gases from within the container to be released gradually as the cap is unscrewed by the consumer. To achieve the necessary venting, it is common for the threads of the finish portions of conventional soft drinks containers to be intermittent as opposed to a continuous helix. It is also common for the internal threads of the closure caps to have periodic gas venting gaps. Another important consideration in the design of such closures involves the quality of engagement between the closure thread and the threads on the finish portion of the container as the closure is removed from the container. Deformation of the closure that is caused by plastic creep of the closure may have the effect of deforming the closure cap from its original substantially cylindrical configuration into a more oval shape, which decreases the quality of engagement between the threads on the closure and the threads on the finish portion of the container. The creep is a permanent deformation of the plastic caused by stress. This stress is caused by the pressure of the carbonated beverage in the bottle at higher temperatures, and is also caused by higher temperatures softening the plastic over time. The effect is most pronounced when the threads of the closure are close to the open end of the closure, since there is less support to keep the closure in its original form.
- This deformation tends to be more pronounced in closure designs where the interior threading of the closure is extended close to the open end of the closure skirt. For example,
FIGS. 1 and 2 depict aconventional closure 10 having atop wall 12 and a substantiallycylindrical skirt 14 defining aninner surface 16, anouter surface 18 and alower rim 20. Thelower rim 20 is configured so as to possess a minimum width W2 which in this example is 0.0364 in. theouter surface 18 of theskirt 14 may be provided with a plurality offlute projections 22 to enhance grippability by a consumer. A plurality of thread projections are defined oninner surface 16 ofskirt 14, including alowermost thread 24 that is positioned so as to be spaced from thelower rim 20 by an axial distance HT, which in this example is 0.095 in. A tamper evident band 26 including a J-hook portion 28 is frangibly attached to thelower rim 20 of theskirt 14.Skirt 14 is further molded so as to define anannular recess 29 having a width W1 (0.0228 in.) and a height H1 (0.0240 in.) on theinner surface 16 thereof between thelowermost thread 24 and thelower rim 20 of theskirt 14. Referring toFIG. 2 , areference circle 30 is provided so as to make visible the deformation mentioned above. In this example, a first diameter D1 of theclosure 10 was measured at 1.2095 in., while a second diameter D2 was measured at 1.2450 in. This example illustrates the magnitude of the deformation that is likely to occur using conventional closures. - The thicker the outer wall of the closure skirt, the better the quality of engagement that will be maintained during opening will tend to be. However, material costs for the manufacturer will increase significantly as the thickness of the outer wall is increased.
- A need exists for an improved closure design that will ensure an improved dimensional integrity of the closure during opening, particularly in instances where threading is positioned close to the open end of the closure skirt, without substantially increasing material costs for the manufacturer.
- Accordingly, it is an object of the invention to provide an improved closure design that will ensure an improved dimensional integrity of the closure during opening, particularly in instances where threading is positioned close to the open end of the closure skirt, without substantially increasing material costs for the manufacturer.
- In order to achieve the above and other objects of the invention, a plastic closure for a container, includes a top wall; a downwardly depending substantially cylindrical skirt that is unitary with the top wall, the skirt defining inner and outer surfaces and further defining a lower rim at a distal, bottom end thereof; at least one thread that is defined on the inner surface of the skirt; and reinforcing structure defined on the skirt in an area between the lower rim and a lowermost thread on the inner surface for enhancing the dimensional integrity of the closure during opening.
- These and various other advantages and features of novelty that characterize the invention are pointed out with particularity in the claims annexed hereto and forming a part hereof. However, for a better understanding of the invention, its advantages, and the objects obtained by its use, reference should be made to the drawings which form a further part hereof, and to the accompanying descriptive matter, in which there is illustrated and described a preferred embodiment of the invention.
-
FIG. 1 is a fragmentary cross-sectional diagrammatic depiction of a portion of a conventional closure; -
FIG. 2 is a bottom plan view of the conventional closure that is shown inFIG. 1 ; -
FIG. 3 is a fragmentary cross-sectional diagrammatic depiction of a portion of a closure constructed according to a preferred embodiment of the present invention; and -
FIG. 4 is a bottom plan view of the embodiment that is depicted inFIG. 3 . - Referring now to the drawings, wherein like reference numerals designate corresponding structure throughout the views, and referring in particular to
FIGS. 3 and 4 , aclosure cap 40 that is constructed according to a preferred embodiment of the invention includes a top wall 42 and a downwardly depending substantiallycylindrical skirt 44 defining aninner surface 16, andouter surface 18 and alower rim 46 that is positioned at a distal, bottom end thereof. A plurality of threads are defined on theinner surface 16 of the downwardly dependingskirt 44, including alowermost thread 24 that is positioned more closely to thelower rim 46 then any of the other threads. A plurality offlutes 22 may be defined on theouter surface 18 in order to enhance grippability of theclosure 40. A tamperevident band 48 having a J-hook portion 50 is as is conventional frangibly attached to thelower rim 46. - According to one important aspect of the invention, reinforcing
structure 52 is defined on theskirt 44 in an area between thelower rim 46 and thelowermost thread 24 for enhancing the dimensional integrity of theclosure 40 during opening. In the preferred embodiment,reinforcing structure 52 includes an area of increased skirt thickness between thelower rim 46 and thelowermost thread 24. “Thickness” as the term is used herein means thickness in a radial direction, in other words in a direction that is perpendicular to a longitudinal axis of theclosure 40, and is indicated as WT inFIG. 3 . “Increased” skirt thickness means that this area is thicker then the corresponding area on conventional closures, such as the conventional closure that is depicted inFIGS. 1 and 2 described above. This area of increased skirt thickness preferably has a relatively smooth inner surface extending unbroken about the inner periphery of the lowermost portion of theskirt 44 so as to define a cylindrical inner surface beneath thelowermost thread 24. - Preferably, this area of increased skirt thickness is at least about 0.05 in. in maximum thickness. More preferably, this area of increased skirt thickness is at least about 0.06 in. in maximum thickness, and most preferably it is at least about 0.07 in. in maximum thickness.
- Moreover, a ratio of the width WT of the
area 52 of increased skirt thickness to the outer diameter DC of theskirt 44 is preferably at least about 0.04, and more preferably at least about 0.05. - Additionally, the product calculated by multiplying the width WT and a vertical, axial distance HT between the
lower rim 46 and the lowermost point of the peak of thelowermost thread 24 is preferably at least about 0.0040, more preferably at least about 0.0045 and most preferably at least about 0.0048. - Additionally, the
outer surface 18 extends at an angle Θ with respect to vertical that is preferably within a range of about 16 to about 28 degrees, and that is more preferably about 22 degrees. The angle is greater than that of the conventional closure described above, which was about 14 degrees, which permits an increase in the thickness WT. - For example, a
closure 40 according to the preferred embodiment of the invention was constructed so as to have an outer diameter Dc of 1.2180 in., a thickness WT of 0.0702 in. and a height HT of 0.070 in. This closure was determined to possess substantially improved hoop strength characteristics with respect to conventional closures such as those described above. - It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (12)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/771,713 US20050167389A1 (en) | 2004-02-04 | 2004-02-04 | Closure with improved resistance to deformation during opening |
ARP050100423A AR049004A1 (en) | 2004-02-04 | 2005-02-04 | CLOSING COVER WITH AN IMPROVED DEFORMATION RESISTANCE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/771,713 US20050167389A1 (en) | 2004-02-04 | 2004-02-04 | Closure with improved resistance to deformation during opening |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050167389A1 true US20050167389A1 (en) | 2005-08-04 |
Family
ID=34808514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/771,713 Abandoned US20050167389A1 (en) | 2004-02-04 | 2004-02-04 | Closure with improved resistance to deformation during opening |
Country Status (2)
Country | Link |
---|---|
US (1) | US20050167389A1 (en) |
AR (1) | AR049004A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220024649A1 (en) * | 2020-07-24 | 2022-01-27 | Cap-Thin Molds Inc. | Tamper Evident Container Cap Method and Apparatus |
Citations (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3199702A (en) * | 1962-04-16 | 1965-08-10 | Alfred Fischbach Kunststoff Sp | Tamper-proof screw caps |
US4326639A (en) * | 1979-03-15 | 1982-04-27 | Georg Menshen & Co. Kg | Screw cap for bottle-type containers |
US4402415A (en) * | 1980-10-17 | 1983-09-06 | U. G. Closures & Plastics Limited | Integrally sealed container with cap |
US4550844A (en) * | 1984-06-22 | 1985-11-05 | Owens-Illinois, Inc. | Tamper resistant closure with tear-off band |
US4572387A (en) * | 1985-03-01 | 1986-02-25 | Sunbeam Plastics Corporation | Screw-type safety cap |
US4598835A (en) * | 1983-10-29 | 1986-07-08 | Metal Box Public Limited Company | One-piece plastics closure |
US4638917A (en) * | 1984-06-13 | 1987-01-27 | Zeller Plastik Koehn, Graebner & Co. | Tamper proof closure |
US4657153A (en) * | 1985-11-18 | 1987-04-14 | Anchor Hocking Corporation | Tamper-evident closure |
US4715506A (en) * | 1985-10-15 | 1987-12-29 | Johnsen & Jorgensen Plastics Limited | Tamper resistant closures |
US4739893A (en) * | 1986-09-04 | 1988-04-26 | Zapata Industries, Inc. | Linerless plastic closure with integral sealing ring |
US4971213A (en) * | 1987-04-21 | 1990-11-20 | Japan Crown Cork Co., Ltd. | Plastic cap |
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US5056675A (en) * | 1991-01-18 | 1991-10-15 | Sunbeam Plastics Corporation | Tether web ratchet drive tamper indicating band closure |
US5090788A (en) * | 1989-07-27 | 1992-02-25 | Owens-Illinois Closure Inc. | Tamper indicating package |
US5090581A (en) * | 1987-07-14 | 1992-02-25 | Waverley Pharmaceuticals, Ltd. | Bottle caps |
US5197621A (en) * | 1989-05-17 | 1993-03-30 | Crown Cork Ag | Screw cap made of plastics material |
US5263600A (en) * | 1992-09-17 | 1993-11-23 | Product Investment, Inc. | Tamper-evident twist-off closure |
US5314085A (en) * | 1991-10-04 | 1994-05-24 | Jose Collado Bonet, S.A. | Container and tamper-evident closure |
US5356019A (en) * | 1992-10-14 | 1994-10-18 | Crown Cork & Seal Company, Inc. | Tamper indicating plastic closure |
US5400913A (en) * | 1992-12-23 | 1995-03-28 | Crown Cork & Seal Company | Tamper-indicating closure |
US5415306A (en) * | 1990-08-09 | 1995-05-16 | Portola Packaging, Inc. | Foil lined snap-on, screw-off closure and container neck |
USD359682S (en) * | 1993-02-26 | 1995-06-27 | Phoenix Closures, Inc. | Closure |
US5533633A (en) * | 1993-08-13 | 1996-07-09 | Beeson And Sons Limited | Container closure assembly |
US5715959A (en) * | 1994-06-27 | 1998-02-10 | Crown Cork Ag | Closure cap with anti-tamper ring |
US5749201A (en) * | 1996-08-19 | 1998-05-12 | Cochrane; Benjamin | Laser bonded tamper proof press-on cap and seal |
US5749484A (en) * | 1995-09-22 | 1998-05-12 | Rieke Corporation | Tamper-evident child-resistant closure |
US5913437A (en) * | 1997-08-01 | 1999-06-22 | Portola Packaging, Inc. | Tamper evident bottle cap |
US5964139A (en) * | 1991-06-29 | 1999-10-12 | Alcoa Deutschland Gmbh | Apparatas for producing container cap |
USD420916S (en) * | 1998-12-07 | 2000-02-22 | Japan Crown Cork Co., Ltd. | Container closure |
US6116443A (en) * | 1998-09-09 | 2000-09-12 | Sacmi Cooperativa Meccanici Imola S.C.R.L. | Plastic screw cap with tamper-evident ring |
US20010002661A1 (en) * | 1999-06-03 | 2001-06-07 | Bryan L. Reidenbach | Tamper-resistant bottle closure |
US6325227B1 (en) * | 2000-03-20 | 2001-12-04 | Phoenix Closures, Inc. | Tamper-indicating closure with horizontal undercuts |
US20020033374A1 (en) * | 1997-08-01 | 2002-03-21 | Ma Mike Xiaoli | Tamper evidencing closure |
USD460357S1 (en) * | 2001-05-02 | 2002-07-16 | White Cap, Inc. | Dairy closure |
US6491175B1 (en) * | 2000-06-28 | 2002-12-10 | Saad Taha | Single piece closure for a pressurized container |
US6557714B2 (en) * | 2001-03-22 | 2003-05-06 | Alcoa Closure Systems International, Inc. | Tamper-evident package |
-
2004
- 2004-02-04 US US10/771,713 patent/US20050167389A1/en not_active Abandoned
-
2005
- 2005-02-04 AR ARP050100423A patent/AR049004A1/en unknown
Patent Citations (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3199702A (en) * | 1962-04-16 | 1965-08-10 | Alfred Fischbach Kunststoff Sp | Tamper-proof screw caps |
US4326639A (en) * | 1979-03-15 | 1982-04-27 | Georg Menshen & Co. Kg | Screw cap for bottle-type containers |
US4402415A (en) * | 1980-10-17 | 1983-09-06 | U. G. Closures & Plastics Limited | Integrally sealed container with cap |
US4598835A (en) * | 1983-10-29 | 1986-07-08 | Metal Box Public Limited Company | One-piece plastics closure |
US4638917A (en) * | 1984-06-13 | 1987-01-27 | Zeller Plastik Koehn, Graebner & Co. | Tamper proof closure |
US4550844A (en) * | 1984-06-22 | 1985-11-05 | Owens-Illinois, Inc. | Tamper resistant closure with tear-off band |
US4572387A (en) * | 1985-03-01 | 1986-02-25 | Sunbeam Plastics Corporation | Screw-type safety cap |
US4715506A (en) * | 1985-10-15 | 1987-12-29 | Johnsen & Jorgensen Plastics Limited | Tamper resistant closures |
US4657153A (en) * | 1985-11-18 | 1987-04-14 | Anchor Hocking Corporation | Tamper-evident closure |
US4739893A (en) * | 1986-09-04 | 1988-04-26 | Zapata Industries, Inc. | Linerless plastic closure with integral sealing ring |
US4971213A (en) * | 1987-04-21 | 1990-11-20 | Japan Crown Cork Co., Ltd. | Plastic cap |
US5090581A (en) * | 1987-07-14 | 1992-02-25 | Waverley Pharmaceuticals, Ltd. | Bottle caps |
US5197621A (en) * | 1989-05-17 | 1993-03-30 | Crown Cork Ag | Screw cap made of plastics material |
US5090788A (en) * | 1989-07-27 | 1992-02-25 | Owens-Illinois Closure Inc. | Tamper indicating package |
US5415306A (en) * | 1990-08-09 | 1995-05-16 | Portola Packaging, Inc. | Foil lined snap-on, screw-off closure and container neck |
US5050753A (en) * | 1990-08-27 | 1991-09-24 | H-C Industries, Inc. | Preferentially strengthened tamper-indicating plastic closure |
US5040692A (en) * | 1990-12-17 | 1991-08-20 | Sunbeam Plastics Corporation | Tamper indicating closure |
US5056675A (en) * | 1991-01-18 | 1991-10-15 | Sunbeam Plastics Corporation | Tether web ratchet drive tamper indicating band closure |
US5964139A (en) * | 1991-06-29 | 1999-10-12 | Alcoa Deutschland Gmbh | Apparatas for producing container cap |
US5314085A (en) * | 1991-10-04 | 1994-05-24 | Jose Collado Bonet, S.A. | Container and tamper-evident closure |
US5263600A (en) * | 1992-09-17 | 1993-11-23 | Product Investment, Inc. | Tamper-evident twist-off closure |
US5356019A (en) * | 1992-10-14 | 1994-10-18 | Crown Cork & Seal Company, Inc. | Tamper indicating plastic closure |
US5400913A (en) * | 1992-12-23 | 1995-03-28 | Crown Cork & Seal Company | Tamper-indicating closure |
USD359682S (en) * | 1993-02-26 | 1995-06-27 | Phoenix Closures, Inc. | Closure |
US5533633A (en) * | 1993-08-13 | 1996-07-09 | Beeson And Sons Limited | Container closure assembly |
US5715959A (en) * | 1994-06-27 | 1998-02-10 | Crown Cork Ag | Closure cap with anti-tamper ring |
US5749484A (en) * | 1995-09-22 | 1998-05-12 | Rieke Corporation | Tamper-evident child-resistant closure |
US5749201A (en) * | 1996-08-19 | 1998-05-12 | Cochrane; Benjamin | Laser bonded tamper proof press-on cap and seal |
US5913437A (en) * | 1997-08-01 | 1999-06-22 | Portola Packaging, Inc. | Tamper evident bottle cap |
US20020033374A1 (en) * | 1997-08-01 | 2002-03-21 | Ma Mike Xiaoli | Tamper evidencing closure |
US6484896B2 (en) * | 1997-08-01 | 2002-11-26 | Portola Packaging, Inc. | Tamper evidencing closure |
US6116443A (en) * | 1998-09-09 | 2000-09-12 | Sacmi Cooperativa Meccanici Imola S.C.R.L. | Plastic screw cap with tamper-evident ring |
USD420916S (en) * | 1998-12-07 | 2000-02-22 | Japan Crown Cork Co., Ltd. | Container closure |
US20010002661A1 (en) * | 1999-06-03 | 2001-06-07 | Bryan L. Reidenbach | Tamper-resistant bottle closure |
US6325227B1 (en) * | 2000-03-20 | 2001-12-04 | Phoenix Closures, Inc. | Tamper-indicating closure with horizontal undercuts |
US6491175B1 (en) * | 2000-06-28 | 2002-12-10 | Saad Taha | Single piece closure for a pressurized container |
US6557714B2 (en) * | 2001-03-22 | 2003-05-06 | Alcoa Closure Systems International, Inc. | Tamper-evident package |
USD460357S1 (en) * | 2001-05-02 | 2002-07-16 | White Cap, Inc. | Dairy closure |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220024649A1 (en) * | 2020-07-24 | 2022-01-27 | Cap-Thin Molds Inc. | Tamper Evident Container Cap Method and Apparatus |
Also Published As
Publication number | Publication date |
---|---|
AR049004A1 (en) | 2006-06-21 |
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