EP1375371A1 - Zusammengesetzter Pfropfen mit verstärkter Dichtung - Google Patents

Zusammengesetzter Pfropfen mit verstärkter Dichtung Download PDF

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Publication number
EP1375371A1
EP1375371A1 EP02368065A EP02368065A EP1375371A1 EP 1375371 A1 EP1375371 A1 EP 1375371A1 EP 02368065 A EP02368065 A EP 02368065A EP 02368065 A EP02368065 A EP 02368065A EP 1375371 A1 EP1375371 A1 EP 1375371A1
Authority
EP
European Patent Office
Prior art keywords
cap
cork
bottle
neck
diameter
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.)
Withdrawn
Application number
EP02368065A
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English (en)
French (fr)
Inventor
Guy Chassignon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
du Baou Cie
Original Assignee
du Baou Cie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by du Baou Cie filed Critical du Baou Cie
Priority to EP02368065A priority Critical patent/EP1375371A1/de
Publication of EP1375371A1 publication Critical patent/EP1375371A1/de
Withdrawn legal-status Critical Current

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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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0011—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece from natural or synthetic cork, e.g. for wine bottles or the like

Definitions

  • the present invention relates to cork stoppers for corking bottles, and in particular for bottles of still wine and particularly concerns a composite material cap with reinforced seal.
  • Cork For the manufacture of bottle caps wine, cork has been around for a long time and will stay most used material. Characteristics exceptional that make it almost irreplaceable come in particular from its natural origin and its ease of implementation. Cork or suber is a fabric sparse spongy cell from the bark of the Oak cork. The cells filled with ambient air make it compressible but also elastic and allow gas exchanges. In addition, it is almost rot-proof and its qualities are relatively stable over time. The cork is naturally impregnated with a lipid substance insoluble in water, suberin, which makes it waterproof.
  • the cap is compressed so that decrease its diameter by about a third of its value.
  • the cork stoppers after compression, lose 4 to 5% of their initial diameter and so the force exerted by the walls of the plug when it returns to its original form decreases. So when clogging when the pressure is released, the elastic characteristics of the cork make the cork regains 85% of its initial diameter in one minute and 90% in three minutes. This time of relaxation or time of decompression of the plug should be taken into account when bottling. Unfortunately, the cadences industrial sites in the region of 2,500 caps per hour very rarely observe these relaxation times once that the stopper has been inserted into the neck of the bottle. Before the end of this cork relaxation time, the bottle is put in crate or cardboard in position lying.
  • the cork stopper in position in the bottle compresses naturally over time causing reduction dimensional and therefore a reduction in force exerted on the walls of the bottle.
  • the very structure of cork made up of different layers of alternate growth or "wooded lines”, of densities different results in the cap not being applied not homogeneously and uniformly on the wall of the neck of the bottle and therefore does not exert a force ideally distributed on it. Disadvantages above, it follows sealing problems of some bottles that become oozing, this is the so-called "pouring" bottles.
  • the object of the invention is to alleviate these disadvantages by providing a plug whose body main is cork and whose relaxation time after compression and bottling is decreased compared to traditional corks and the pressure exerted on the walls of the neck is uniform over the entire periphery of the plug.
  • the object of the invention is therefore a means of obturation a bottle of still wine or similar including a cylindrical cork body with a diameter greater than diameter of the neck of the corking bottle and intended for be compressed to a diameter less than diameter of the neck to be introduced inside the neck and form a tight stopper at the end of the back to its original form said relaxation time by cork pressure on the walls of the neck.
  • the cap according to the invention includes on at least the flat face facing the side of the contents of the bottle a circular or empty throat ring containing an incompressible and elastic element such as when the plug has been placed in the neck of the bottle, the element immediately resumes its original shape and exerts a significant uniform force and homogeneous over the entire periphery of the cap and therefore on the bottle neck walls.
  • an annular recess forming a circular groove 12 is produced by milling or by any other means on the flat and parallel faces of the plug and preferably located at least 4mm from the edge of the plug.
  • the section of the groove 12 created is preferably rectangular but the shape of this section may be different without however, depart from the scope of the invention.
  • element 14 is positioned inside of the annular recess forming the groove 12 .
  • element 14 is an acetoxysilane of viscosity and of high density, cold vulcanizable called E.V.F, more commonly called silicone and whose main mechanical properties that interest us here are to be incompressible and elastic.
  • the filling of the throat 12 by silicone is done by industrial means suitable thanks to pressure injection equipment so that the silicone completely fills the throat 12 without formation of air bubbles.
  • this element 14 forming a ring of silicone is practiced on the two flat faces of the cap because the bottling machines are designed to indifferently present one side or the other of the cap on the bottle. But it is obvious that only the turned side on the side of the contents of the bottle provided with the ring silicone 14 is enough to make the cap according to the invention.
  • the diameter of the plug goes from 24mm to about 15mm and the ring 14 in silicone deforms in all directions by crushing of the cork on the sides and in the thickness of the plug, but preferably outside its housing as shown in Figure 2. So the section of the silicone ring 14 transforms and tends to become oval under the action of pressure as shown precisely on the magnification of figure 2. Thanks to its qualities mechanical the silicone ring 14 deforms towards the outside of the cap during compression and this behavior is very important because so the silicone does not damage the cork cells by too much pressure strong.
  • the diameter of the ring silicone does not decrease in the same proportions as the diameter of the plug, its decrease is much less.
  • Figure 3 shows the plug 10 in place in the neck 16 of the standard diameter bottle 21mm, once the pressure is released.
  • the diameter of the plug 10 tends to return to its initial value, this is the relaxation of the cork.
  • the silicone ring 14 of which the diameter remained substantially constant during the compression of the cork exerts a force on the cork directed mainly outwards and resumes its original shape and size immediately compression ceases due to these characteristics mechanical incompressibility and elasticity.
  • Strength important effect exerted by silicone on cork is uniform and homogeneous over the entire periphery of the cap and adds to the force that cork itself exerts on the walls of the bottle and accelerates the elastic return cork or relaxation of cork which resumes faster initial form.
  • the relaxation time is decreased, the contact of glass and cork is optimal at the periphery of the cap immediately after capping. So the bottles can be put in the lying position as soon as the capping operation completed, which facilitates the chain manufacturing and packaging as much for the industrial bottler only for the little wine merchant.
  • this reduced relaxation time acts in somehow as a guarantee against the bottles oozing.
  • cork by its natural origin and its structure in alternating growth layers or "lines wooded "does not impart properties perfectly identical from one cap to another.
  • a raw cork sheet is not perfectly dry, so that the corks that come from it show tendencies to deform and ovalize.
  • the plug may present an anarchic return to its original form, the pressure of the cap on the walls of the bottle is not then not uniform, sealing is called into question and some bottles become oozing.
  • the plug according to the invention has the advantage of making the cap pressure uniform on the walls of the bottle and therefore to remove the problem of soaker bottles known as runners.
  • the tightness of bottles provided with the stopper according to the invention is ensured and the alteration of the organoleptic characteristics of the wine content in the bottle is avoided.
  • Silicone in addition to the mechanical qualities mentioned above, has many physicochemical qualities which make it an ideal material to be combined with cork because it adheres perfectly to cork.
  • silicone is hydrophobic and rot-proof. It allows gas exchange thanks to its filtering character and therefore does not disturb the passage of the molecules N 2 , S 2 , O 2 and CO 2 necessary for the improvement of the wine.
  • silicone is translucent; so, at first glance, the cap according to the invention appears as a traditional stopper in cork which is widely appreciated compared to a composite stopper with a cork body and a cap plastic.
  • the silicone can be replaced by any other elastic and incompressible means.
  • a spiral leaf spring of the type strip, embedded in a sealant such as silicone is introduced inside the groove 12 in rest position in the 24 mm diameter cap.
  • the ring formed of spring and sealant exerts pressure constant on the cork at the periphery of the cork and therefore on the sides of the bottle neck.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP02368065A 2002-06-25 2002-06-25 Zusammengesetzter Pfropfen mit verstärkter Dichtung Withdrawn EP1375371A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02368065A EP1375371A1 (de) 2002-06-25 2002-06-25 Zusammengesetzter Pfropfen mit verstärkter Dichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02368065A EP1375371A1 (de) 2002-06-25 2002-06-25 Zusammengesetzter Pfropfen mit verstärkter Dichtung

Publications (1)

Publication Number Publication Date
EP1375371A1 true EP1375371A1 (de) 2004-01-02

Family

ID=29716977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02368065A Withdrawn EP1375371A1 (de) 2002-06-25 2002-06-25 Zusammengesetzter Pfropfen mit verstärkter Dichtung

Country Status (1)

Country Link
EP (1) EP1375371A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105083724A (zh) * 2015-07-27 2015-11-25 河南零到壹电子科技有限公司 带温湿度计的红酒塞

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1338374A (fr) * 1962-06-27 1963-09-27 Bouchon pour bouteille de champagne
FR2736036A1 (fr) * 1995-06-28 1997-01-03 Maine De Biran Arnault Bouchon destine a obturer les bouteilles de vins dits tranquilles ou mousseux
FR2786753A1 (fr) * 1998-12-04 2000-06-09 Barange Fabrique De Bouchons E Bouchon composite a permeabilite controlee

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1338374A (fr) * 1962-06-27 1963-09-27 Bouchon pour bouteille de champagne
FR2736036A1 (fr) * 1995-06-28 1997-01-03 Maine De Biran Arnault Bouchon destine a obturer les bouteilles de vins dits tranquilles ou mousseux
FR2786753A1 (fr) * 1998-12-04 2000-06-09 Barange Fabrique De Bouchons E Bouchon composite a permeabilite controlee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105083724A (zh) * 2015-07-27 2015-11-25 河南零到壹电子科技有限公司 带温湿度计的红酒塞

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