WO2010118413A2 - Glued synthetic cork and method of manufacture - Google Patents
Glued synthetic cork and method of manufacture Download PDFInfo
- Publication number
- WO2010118413A2 WO2010118413A2 PCT/US2010/030697 US2010030697W WO2010118413A2 WO 2010118413 A2 WO2010118413 A2 WO 2010118413A2 US 2010030697 W US2010030697 W US 2010030697W WO 2010118413 A2 WO2010118413 A2 WO 2010118413A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- synthetic cork
- radial
- base portion
- hole
- cap
- Prior art date
Links
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
- B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
- B65D39/0052—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in more than one piece
- B65D39/0076—Plastic closures other than those covered by groups B65D39/0058 - B65D39/007
-
- 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
- B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
- B65D39/16—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers with handles or other special means facilitating manual actuation
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
Definitions
- the present disclosure relates to container closures using natural looking synthetic cork.
- Such synthetic cork stopper comprises a synthetic cork bonded to a cap.
- such synthetic cork may comprise a smooth cylindrical corklO having a shank 12 with a flat base portion 14 and a beveled or curved tip portion 16.
- the flat base portion 14 is glued (note shaded adhesive area 17) to a cap portion 18 (e.g., plastic or wooden) to provide a synthetic cork with a cap useable by the user to remove and re-stopper the synthetic cork.
- the present invention comprises a composite synthetic cork, wherein the flat bottom of the synthetic cork shank includes radial contouring, such that a larger contact area is provided for glue contact to the synthetic cork.
- radial contouring comprises a spoked design on the bottom of the cork shank.
- a cap hole is utilized in conjunction with the synthetic cork having radial contouring, the cap hole having side walls that only permit liquid glue to flow up the side of the radial contouring.
- the cap hole having side walls that only permit liquid glue to flow up the side of the radial contouring.
- such configuration provides a larger contact area where the glue is holding the cork compared to traditional designs. This increases the holding force of the cork to the cap and combines the traditional tensile gluing force with an additional shear gluing force.
- FIGURE 1 is side elevation view of a traditional synthetic cork
- FIGURE 2 is a top elevation view of a synthetic cork glued to a cap portion
- FIGURE 3 is a side elevation view of an exemplary synthetic cork including a base portion having axial contours;
- FIGURE 4 is a bottom elevation view of the exemplary synthetic cork of FIGURE 3;
- FIGURE 5 is top elevation view of a first exemplary cap having a smooth gluing surface
- FIGURE 6 is a top elevation view of a second exemplary cap having contoured side walls
- FIGURE 7 A is a side plan view of an exemplary cork in a pre-installed condition relative to an exemplary cap;
- FIGURE 7B is a side plan view of an exemplary cork in a post- installed condition relative to an exemplary cap;
- FIGURE 8 A is a side plan view of an exemplary cork in a pre-installed condition relative to an exemplary cap
- FIGURE 8B is a side plan view of an exemplary cork in a post- installed condition relative to an exemplary cap.
- the present disclosure relates to an improved synthetic cork, wherein a flat bottom of the synthetic cork shank includes radial contouring, such that a larger contact area is provided for glue contact to the synthetic cork.
- the exemplary cork includes a shank portion 22, a base portion 24, and a beveled or curved tip portion 26.
- the base portion 24 has a flat bottom 28, and at least one radial contour 30, which contour provides increased contact area relative to traditional smooth base portion designs.
- such radial contouring 30 comprises a spoked design on the bottom of the cork shank.
- FIGURES 5 and 6 illustrate exemplary caps 32 configured with a hole 34 sized to receive the base portion 24 of the synthetic cork.
- the exemplary cap 32 of FIGURE 5 shows a hole 34 having smooth sidewalls 36.
- the exemplary cap 32 of FIGURE 6 shows a hole 34 having contoured sidewalls 38.
- FIGURES 7 A and 7B illustrate an exemplary assembly of an exemplary cork and cap, wherein FIGURE 7A illustrates the cork and cap in a pre-installed configuration and FIGURE 7B illustrates the cork and cap in a post-installed configuration.
- the cork is illustrated having radial contouring 30.
- the cap 32 is illustrated with a hole configured to accept the cork, the hole having smooth sidewalls 36.
- FIGURES 8A and 8B illustrate another exemplary assembly of an exemplary cork and cap, wherein FIGURE 8A illustrates the cork and cap in a pre-installed configuration and FIGURE 8B illustrates the cork and cap in a post-installed configuration.
- the cork is illustrated having radial contouring 30.
- the cap 32 is illustrated with a hole configured to accept the cork, the hole having smooth sidewalls 36.
- at least a lower part 40 (near the base portion 24) of the shank portion 22 has an increased diameter relative to the cap hole 34.
- this lower part 40 creates a seal 42 that prevents excess adhesive from exiting the adhesive contact area 44 for the adhesive in the installed configuration (note that with regard to FIGURE 7B, depending on the amount of adhesive used, it may be possible to get some excess adhesive 46 outside the edges of the cap hole 40 without such seal 42 in addition to retaining adhesive within the nominal adhesive contact area 44).
- Such seal 42 not only serves to assist in adhesive retention in the nominal adhesive contact area 44 but also serves to provide a more aesthetically pleasing product.
- caps are utilized in conjunction with the exemplary synthetic cork 20 having radial contouring 30, the cap hole having side walls that only permit liquid glue to flow up the side of the radial contouring.
- such configuration provides a larger contact area where the glue is holding the cork compared to traditional designs.
- This increases the holding force of the cork to the cap and combines the traditional tensile gluing force with an additional shear gluing force.
- Tensile stress develops when forces acting perpendicular to the plane of a joint are distributed uniformly over the entire bonded area.
- Shear stress results when forces acting in the plane of the adhesive try to separate the adherents.
- the presently described caps advantageously combine both tensile and shear holding forces.
- the synthetic cork component may comprise any acceptable synthetic cork material, and the cork may be formed by any convenient mechanism, including such materials and mechanisms as are described in co-pending U.S. Patent Application Serial No. 11/640,999, filed December 19, 2006 and prior U.S. Provisional Application Serial No. 60/751,299, the entire contents of each of which are specifically incorporated herein by reference (In short, these applications describe methods of creating the random and irregular markings including molding the details directly into the surface of the stopper and extruding the synthetic material into a desired shape before passing it through forming cylinders or rollers that contain the negative of the desired surface texture, and which imprint the texture onto the material's exterior surface).
- the radial contouring 30 of the cork base portion 24 may be molded therein or shaped via forming devices.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Dowels (AREA)
Abstract
A synthetic cork is provided, comprising a shank portion, having a tip portion and a base portion, the base portion including a radial contour, the radial contour providing increased radial surface area relative to a smooth radial bottom portion. A synthetic cork stopper is also provided, wherein the synthetic cork base portion is glued into a hole of a cap. In exemplary embodiments, the radial contour is a spoked configuration.
Description
GLUED SYNTHETIC CORK AND METHOD OF MANUFACTURE
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority to United States Provisional Patent Application Serial No. 61/168,320, filed April 10, 2009; the entire contents of which are specifically incorporated by reference herein.
BACKGROUND
[0002] The present disclosure relates to container closures using natural looking synthetic cork.
[0003] Producers of liquid consumable products, such as wine, liquor and other products, that are sold in bottles or other containers that are traditionally closed and sealed with cork stoppers have long been concerned about contamination due to the cork, which can lead to spoilage or alteration of the product within the container. In the case of wine or cooking oil, for example, such spoilage is immediately noticeable by the consumer and renders the product unfit for consumption.
[0004] For that reason, there has been a movement in recent times toward the use of synthetic stoppers in place of cork. If the synthetic materials used are non-reactive with the contents of the container, the synthetic stopper is a viable solution to the problem of contamination due to the cork, and consequently the contents of the container.
[0005] One configuration of such synthetic cork stopper comprises a synthetic cork bonded to a cap. With reference to PRIOR ART FIGURE 1, such synthetic cork may comprise a smooth cylindrical corklO having a shank 12 with a flat base portion 14 and a beveled or curved tip portion 16. With reference to PRIOR ART FIGURE 2, the flat base portion 14 is glued (note shaded adhesive area 17) to a cap portion 18 (e.g., plastic or wooden) to provide a synthetic cork with a cap useable by the user to remove and re-stopper the synthetic cork.
[0006] While such synthetic stoppers are useful for closing containers, only the bottom of the cork shank and the bottom of the hole in the cap touch and are held together by glue, creating a tensile glued structure. This configuration is problematic in the industry, as such configuration is known to separate during use. What is needed in the art is an improved glued synthetic cork.
SUMMARY
[0007] The present invention comprises a composite synthetic cork, wherein the flat bottom of the synthetic cork shank includes radial contouring, such that a larger contact area is provided for glue contact to the synthetic cork. In exemplary embodiments, such radial contouring comprises a spoked design on the bottom of the cork shank.
[0008] In exemplary embodiments, a cap hole is utilized in conjunction with the synthetic cork having radial contouring, the cap hole having side walls that only permit liquid glue to flow up the side of the radial contouring. As noted, such configuration provides a larger contact area where the glue is holding the cork compared to traditional designs. This increases the holding force of the cork to the cap and combines the traditional tensile gluing force with an additional shear gluing force.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Referring now to the drawings, wherein like elements are numbered alike in the following FIGURES:
[0010] PRIOR ART FIGURE 1 is side elevation view of a traditional synthetic cork;
[0011] PRIOR ART FIGURE 2 is a top elevation view of a synthetic cork glued to a cap portion;
[0012] FIGURE 3 is a side elevation view of an exemplary synthetic cork including a base portion having axial contours;
[0013] FIGURE 4 is a bottom elevation view of the exemplary synthetic cork of FIGURE 3;
[0014] FIGURE 5 is top elevation view of a first exemplary cap having a smooth gluing surface;
[0015] FIGURE 6 is a top elevation view of a second exemplary cap having contoured side walls;
[0016] FIGURE 7 A is a side plan view of an exemplary cork in a pre-installed condition relative to an exemplary cap;
[0017] FIGURE 7B is a side plan view of an exemplary cork in a post- installed condition relative to an exemplary cap;
[0018] FIGURE 8 A is a side plan view of an exemplary cork in a pre-installed condition relative to an exemplary cap; and
[0019] FIGURE 8B is a side plan view of an exemplary cork in a post- installed condition relative to an exemplary cap.
9
DETAILED DESCRIPTION
[0020] As was noted above, the present disclosure relates to an improved synthetic cork, wherein a flat bottom of the synthetic cork shank includes radial contouring, such that a larger contact area is provided for glue contact to the synthetic cork.
[0021] Referring now to FIGURE 3, an exemplary synthetic cork is illustrated generally at 20. The exemplary cork includes a shank portion 22, a base portion 24, and a beveled or curved tip portion 26. With reference to FIGURES 3 and 4, the base portion 24 has a flat bottom 28, and at least one radial contour 30, which contour provides increased contact area relative to traditional smooth base portion designs. In exemplary embodiments, as illustrated by FIGURES 3 and 4, such radial contouring 30 comprises a spoked design on the bottom of the cork shank.
[0022] FIGURES 5 and 6 illustrate exemplary caps 32 configured with a hole 34 sized to receive the base portion 24 of the synthetic cork. The exemplary cap 32 of FIGURE 5 shows a hole 34 having smooth sidewalls 36. The exemplary cap 32 of FIGURE 6 shows a hole 34 having contoured sidewalls 38.
[0023] FIGURES 7 A and 7B illustrate an exemplary assembly of an exemplary cork and cap, wherein FIGURE 7A illustrates the cork and cap in a pre-installed configuration and FIGURE 7B illustrates the cork and cap in a post-installed configuration. As with FIGURE 4, the cork is illustrated having radial contouring 30. Also, as with FIGURE 5, the cap 32 is illustrated with a hole configured to accept the cork, the hole having smooth sidewalls 36.
[0024] FIGURES 8A and 8B illustrate another exemplary assembly of an exemplary cork and cap, wherein FIGURE 8A illustrates the cork and cap in a pre-installed configuration and FIGURE 8B illustrates the cork and cap in a post-installed configuration. As with FIGURE 4, the cork is illustrated having radial contouring 30. Also, as with FIGURE 5, the cap 32 is illustrated with a hole configured to accept the cork, the hole having smooth sidewalls 36. In this exemplary embodiment, at least a lower part 40 (near the base portion 24) of the shank portion 22 has an increased diameter relative to the cap hole 34. Thus, during installation, this lower part 40 creates a seal 42 that prevents excess adhesive from exiting the adhesive contact area 44 for the adhesive in the installed configuration (note that with regard to FIGURE 7B, depending on the amount of adhesive used, it may be possible to get some excess adhesive 46 outside the edges of the cap hole 40 without such seal 42 in addition to retaining adhesive within the nominal adhesive contact area 44). Such seal 42 not only serves to assist in adhesive retention in the nominal adhesive contact area 44 but also serves to provide a more aesthetically pleasing product.
[0025] In exemplary embodiments caps are utilized in conjunction with the exemplary synthetic cork 20 having radial contouring 30, the cap hole having side walls that only permit liquid glue to flow up the side of the radial contouring. As noted, such configuration provides a larger contact area where the glue is holding the cork compared to traditional designs. This increases the holding force of the cork to the cap and combines the traditional tensile gluing force with an additional shear gluing force. Tensile stress develops when forces acting perpendicular to the plane of a joint are distributed uniformly over the entire bonded area. Shear stress results when forces acting in the plane of the adhesive try to separate the adherents. The presently described caps advantageously combine both tensile and shear holding forces.
[0026] The synthetic cork component may comprise any acceptable synthetic cork material, and the cork may be formed by any convenient mechanism, including such materials and mechanisms as are described in co-pending U.S. Patent Application Serial No. 11/640,999, filed December 19, 2006 and prior U.S. Provisional Application Serial No. 60/751,299, the entire contents of each of which are specifically incorporated herein by reference (In short, these applications describe methods of creating the random and irregular markings including molding the details directly into the surface of the stopper and extruding the synthetic material into a desired shape before passing it through forming cylinders or rollers that contain the negative of the desired surface texture, and which imprint the texture onto the material's exterior surface). The radial contouring 30 of the cork base portion 24 may be molded therein or shaped via forming devices.
[0027] It will be apparent to those skilled in the art that, while exemplary embodiments have been shown and described, various modifications and variations can be made to the synthetic cork and method of making disclosed herein without departing from the spirit or scope of the invention. For example, recitations of projections and recesses on particular pieces are non-limiting, it being recognized that the arrangement may be reversed for a given piece. Accordingly, it is to be understood that the various embodiments have been described by way of illustration and not limitation.
[0028] What is claimed is:
Claims
1. A synthetic cork, comprising a shank portion, having a tip portion and a base portion, the base portion including a radial contour, the radial contour providing increased radial surface area relative to a smooth radial base portion.
2. A synthetic cork in accordance with claim 1, wherein the tip portion includes a beveled or curved tip contour.
3. A synthetic cork in accordance with claim 1, wherein said radial contour is a spoked radial configuration.
4. A synthetic cork in accordance with claim 1, wherein said base portion includes a flat bottom.
5. A composite synthetic cork stopper, comprising: a cap portion having a hole; and a synthetic cork, comprising a shank portion, having a tip portion and a base portion sized to be received within the hole of the cap portion, the base portion including a radial contour, the radial contour providing increased radial surface area relative to a smooth radial base portion.
6. A composite synthetic cork stopper in accordance with claim 5, wherein the synthetic cork base portion is sized to at least partially frictionally fit within the hole of the cap portion.
7. A composite synthetic cork stopper in accordance with claim 6, wherein a portion of the synthetic cork shank adjacent said synthetic cork base portion has a diameter that is larger than the diameter of the hole of the cap portion.
8. A composite synthetic cork stopper in accordance with claim 7, wherein a said portion of the synthetic cork shank adjacent said synthetic cork base portion seals against a portion of walls of the cap portion outside the diameter of the hole of the cap portion to retain adhesive within the hole of the cap portion.
9. A composite synthetic cork stopper in accordance with claim 5, wherein the cap portion includes smooth walls within said cap portion hole.
10. A composite synthetic cork stopper in accordance with claim 5, wherein the cap portion includes contoured walls within said cap portion hole.
11. A composite synthetic cork stopper in accordance with claim 5, wherein said radial contour comprises a radial spoked configuration.
12. A composite synthetic cork stopper in accordance with claim 5, wherein said synthetic cork base portion includes a flat bottom.
13. A method of making a composite synthetic cork stopper, comprising: providing a cap portion having a hole; providing a synthetic cork, comprising a shank portion, having a tip portion and a base portion sized to be received within the hole of the cap portion, the base portion including a radial contour, the radial contour providing increased radial surface area relative to a smooth radial base portion; and gluing the synthetic cork base portion within the hole of said cap portion.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2011010587A MX343643B (en) | 2009-04-10 | 2010-04-12 | Glued synthetic cork and method of manufacture. |
EP10762562.6A EP2417032B1 (en) | 2009-04-10 | 2010-04-12 | Glued synthetic cork and method of manufacture |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16832009P | 2009-04-10 | 2009-04-10 | |
US61/168,320 | 2009-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010118413A2 true WO2010118413A2 (en) | 2010-10-14 |
WO2010118413A3 WO2010118413A3 (en) | 2011-01-20 |
Family
ID=42933518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2010/030697 WO2010118413A2 (en) | 2009-04-10 | 2010-04-12 | Glued synthetic cork and method of manufacture |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100258522A1 (en) |
EP (1) | EP2417032B1 (en) |
MX (1) | MX343643B (en) |
WO (1) | WO2010118413A2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20130061A1 (en) * | 2013-03-08 | 2014-09-09 | Labrenta Srl | MUSHROOM CAP FOR BOTTLE |
USD753488S1 (en) * | 2014-03-11 | 2016-04-12 | Tapones Escobar S.A. de C.V. | Lock for cork |
TWM550328U (en) * | 2017-06-21 | 2017-10-11 | Taiwan Fu Hsing Industrial Co Ltd | Collar structure of lock |
TWD190900S (en) * | 2017-10-13 | 2018-06-11 | 台灣福興工業股份有限公司 | Part of the lock ring |
MX2022005486A (en) * | 2019-11-06 | 2022-05-30 | Compania De Tapones Irrellenables S A | Cap for an opening of a container. |
WO2022086314A1 (en) * | 2020-10-21 | 2022-04-28 | Torres Guerrero Victor Alfonso | Bottle cap and method for manufacturing same |
IT202200005177A1 (en) * | 2022-03-16 | 2023-09-16 | Labrenta S R L | Heat-resistant assembled cap |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB595611A (en) * | 1944-11-15 | 1947-12-10 | Joseph Arthur Torpey | Improvements in closures or stoppers for bottles or like containers |
GB324300A (en) * | 1929-04-26 | 1930-01-23 | Herbert Roy Davis | Improvements in and relating to stoppers for bottles, jars or other receptacles |
US2094021A (en) * | 1936-07-14 | 1937-09-28 | Carvin Bottlecap Corp | Closure for containers |
US2641375A (en) * | 1948-07-08 | 1953-06-09 | Kork N Seal Ltd | Closure for bottles and like containers |
KR810000568Y1 (en) * | 1980-05-01 | 1981-05-22 | 표용운 | Stopper |
US4363416A (en) * | 1981-07-15 | 1982-12-14 | Apm, Inc. | Wine cork |
JP2951543B2 (en) * | 1994-07-27 | 1999-09-20 | 幸司 広田 | Cork stopper cap |
JPH09315450A (en) * | 1996-05-28 | 1997-12-09 | Koji Hirota | Cork stopper cap |
IT1307127B1 (en) * | 1999-02-02 | 2001-10-29 | Italco S R L | ASSEMBLING MACHINE FOR MUSHROOM CAPS FOR BOTTLES |
US20070202327A1 (en) * | 2005-12-19 | 2007-08-30 | Alberto Baban | Synthetic cork with a natural cork appearance and method of making it |
-
2010
- 2010-04-12 WO PCT/US2010/030697 patent/WO2010118413A2/en active Application Filing
- 2010-04-12 EP EP10762562.6A patent/EP2417032B1/en not_active Not-in-force
- 2010-04-12 MX MX2011010587A patent/MX343643B/en active IP Right Grant
- 2010-04-12 US US12/758,219 patent/US20100258522A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of EP2417032A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP2417032B1 (en) | 2015-09-02 |
EP2417032A2 (en) | 2012-02-15 |
MX2011010587A (en) | 2012-01-27 |
EP2417032A4 (en) | 2012-08-29 |
US20100258522A1 (en) | 2010-10-14 |
MX343643B (en) | 2016-11-15 |
WO2010118413A3 (en) | 2011-01-20 |
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