EP0409750A1 - Procédé d'introduction d'un opercule à coulissement étanche dans un corps tubulaire cylindrique et dispositif correspondant - Google Patents

Procédé d'introduction d'un opercule à coulissement étanche dans un corps tubulaire cylindrique et dispositif correspondant Download PDF

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Publication number
EP0409750A1
EP0409750A1 EP90420342A EP90420342A EP0409750A1 EP 0409750 A1 EP0409750 A1 EP 0409750A1 EP 90420342 A EP90420342 A EP 90420342A EP 90420342 A EP90420342 A EP 90420342A EP 0409750 A1 EP0409750 A1 EP 0409750A1
Authority
EP
European Patent Office
Prior art keywords
piston
cover
tubular body
sliding
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.)
Ceased
Application number
EP90420342A
Other languages
German (de)
English (en)
French (fr)
Inventor
Bernard Schneider
Roland Fiorini
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.)
Albea Tubes France SAS
Original Assignee
Cebal SAS
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 Cebal SAS filed Critical Cebal SAS
Publication of EP0409750A1 publication Critical patent/EP0409750A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container

Definitions

  • the present invention relates to a method of evacuating air during the introduction into a sealed tubular body, for example the rigid or semi-rigid body of a container or a dispenser, of a lid sliding therein. waterproof way.
  • the first object of the invention is a method of introducing a sealed sliding cover into a cylindrical tubular body using a pushing means pressing on the reverse face of the cover, characterized in that it is pressed said pushing means on said reverse side so as to obtaining a folding of said cover when the pressure of the air trapped in said body increases, this trapped air then escaping between the cover and said body.
  • the pressure of the occluded air is the factor triggering this mechanism thus allowing a complete or almost complete air purge by successive air passages and more and more close together when the seal approaches the bottom or the contained product, whatever whatever the speed of insertion of the cover.
  • the support of the reverse side of the cover must be such that it is capable of causing folding or bending of this cover under the effect of the pressure of the trapped air which is exerted on the front face. .
  • the method applies to any seal with leaktight sliding, this seal being transverse relative to the cylindrical tubular body in which it is pushed. It applies in particular to a sliding piston whose sealed sliding means are constituted by a flexible flared peripheral lip of overall diameter in the free state greater than the diameter of the tubular body, this difference in diameter allowing a slight forcing and the sealed support of the peripheral lip being typically 0.2 to 0.8 mm high, while the front face of the piston constituting the cover is typically made of plastic with a thickness of between 0.6 and 1.4 mm .
  • This cover is light and deformable under the pressure exerted by the air trapped on its reverse side.
  • the bearing surface of the pushing means on the reverse face of the cover comprises, at the time of a deformation allowing the trapped air to pass, both areas of initial support, without back pressure of this air, and areas of additional support often in the extension of the previous ones and having as main characteristic to be initially less than 1.5 mm from the reverse side.
  • these additional support zones correspond to surfaces with a radius of curvature of 8 mm or more of the pusher, surfaces extending the initial support surfaces of the pusher on said reverse face of the cover.
  • a tighter definition of the support range can use the zones with an initial distance of less than 1 mm, instead of 1.5 mm.
  • the support range of the pushing means being defined in this way to fix rules relating to the effectiveness of this support, it is noted that this support range comprising one or more continuous or discontinuous support zones gives a rigid support of the reverse side of the cover, the elongated edges of which favor folding of this cover.
  • this support range is as follows: - in the case where the cover, for example the front face of a sliding piston, is circular, the bearing surface of the means for pushing the cover has an overall length at least equal to 0.6 times and preferably 0.7 times the overall diameter of the cover, and an overall width at most equal to 0.5 times and preferably between 0.1 times and 0.4 times said overall diameter ; - in the particular case where the cover has a central recess opening onto its front face, this recess serving for example to fit a pump of a distributor at the end of the travel of the cover, the support range of the pushing means comprises support zones located on either side of said central recess and, to further promote folding of the cover, said support area does not extend transversely from the central recess.
  • the reverse side of the lid can include recesses or inclined parts, the pusher having a suitable front face and the preceding rules being understood as projection on a plane perpendicular to the axis of the system.
  • this process can operate at various introduction speeds, but if the speed is high, for example more than 40 to 80 mm / s as is usual in packaging plants, there are corresponding jolts. air exhaust trips whenever the corresponding pressure of the occluded air or "critical exhaust pressure" is reached. Furthermore, it is necessary to ensure a deceleration to stop at the chosen distance, and this preferably by pushing back this product to completely eliminate the occluded air then fill the compression chamber and thus ensure or facilitate the initiation of the distribution.
  • the thrust speed is thus reduced to less than 30 mm / s from 1 mm or more distance between the front face of the sliding piston and the product contained.
  • This speed limitation distance is advantageously from 1 to 5 mm.
  • the product contained is then approached when it is creamy or pasty, with a thrust speed of 10 to 30 mm / s, and the plunger is pushed further into the product until initiating the dispensing, that is to say for example until the product fills the compression chamber of the dispenser and exceeds the expulsion valve.
  • a thrust speed 10 to 30 mm / s
  • the plunger is pushed further into the product until initiating the dispensing, that is to say for example until the product fills the compression chamber of the dispenser and exceeds the expulsion valve.
  • the distributor with a rigid or semi-rigid body is equipped with a distribution pump, and more particularly with a pump without air return of principle known by documents EP-A-0143183 and EP-A- 0251863, the product contained being a liquid or a fluid cream
  • the installation of a sliding piston according to the methods of the invention the trapped air escaping even at a low speed of the piston, makes it possible to reduce the volume trapped air to a minimum.
  • this foot made of relatively flexible plastic material, for example PE, comprises an annular fold which is transversely deformable, preferably fitting the end of the tubular body with clamping, this foot having in its central part an air passage hole and the external part to this fold being of small width, so that the foot adapts equally well to slight ovalizations or variations in diameter of the end of the body only slight misalignments of the casing of this end by said added foot.
  • PE relatively flexible plastic material
  • a second object of the invention is the device for introducing a piston sliding in leaktight manner inside the cylindrical tubular body of a container, in the case where the front part of this piston is bordered by a peripheral lip. flared flexible entering with a slight forcing in the tubular body of the container.
  • the invention makes it possible to avoid any internal pollution of the sliding piston.
  • Figures 1 and 2 show a pusher 1 in PA6 fixed to an introduction rod 2 pushing a sliding piston 3 of height 15 mm inside the cylindrical tubular body 4, of internal diameter 52 mm and thickness 0.5 mm, of a distributor, this body 4 being filled with pasty product 5 up to 30 to 32 mm from the open lower end 6 of the tubular body 4.
  • the distributor is in the inverted position for filling and closing by the piston 3, the open end 6 being in the high position.
  • the front veil 7 of the sliding piston 3 which is made of HDPE 0.9 mm thick, it comprises on the reverse side a central plate 8 of 25 mm diameter surrounded by a frustoconical portion 9 at 15 ° with the plate 8 extending to an internal diameter 48 mm followed by a short cylindrical portion at the foot of which is located the flexible peripheral sealing lip 10 slightly flared.
  • This thinned lip 10 at its end has an inside diameter of 51 mm at its base and an outside diameter of tip or overall diameter of 53.5 mm in the free state.
  • the height between the end of the lip 10 and the end of the semi-rigid guide lip 11 at the rear of the sliding piston 3 is 13 mm.
  • the pusher 1 has a length of 44 mm along the plane of Figure 2 and a width of 14 mm along the plane of Figure 1 perpendicular to the plane of Figure 2, the connections between length and width being made at a radius of 7 mm.
  • the initial support zone 12 of the pusher on the back 13 of the veil 7 is 8 ⁇ 12 mm.
  • the width of the support area will vary by less than 1 mm due to the small radii of curvature of the surfaces bordering the initial support area of width 8 mm, as seen in Figure 1.
  • the support range of the pusher dynamic or efficient, then has approximately 8.5 ⁇ 40 mm, while the diameter of the cover or front sail 7 of the piston 3 is 50 mm.
  • the pusher 1 was introduced into the body 4 to 60 mm / s and stopped when its front was 46 mm lower than the open end 6 of the tubular body 4. It was found that from halfway down this descent air was expelled along the inner wall of the cylindrical body 4. The advance was then resumed at 15 mm / s by stopping the sliding piston 38mm lower. It was found that the pasty product had been discharged into the compression chamber of the distributor without there being any escape of this product around the periphery of the piston 3, and that then the emptying of the distributor gave no bubbles or irregularity due to occluded air. The interpretation is as follows: the residual air is effectively expelled by the mechanism of the invention even over a short distance, and the seal against the pasty product due to the peripheral lip 10 is then restored for the discharge of this pasty product 5.
  • FIG. 4 shows the pusher 100 bearing on the reverse face 21 of the piston 30 and deforming it as a result of the increase in pressure of the air 14 trapped between the piston 30 and the tubular body with an internal diameter of 51 mm.
  • This pusher 100 introduced at 20 mm / s and stopped within the pasty product gives, like the previous one, good evacuation of the air which is trapped between the sliding piston 30 and the pasty product 5.
  • FIG. 6 represents an introduction device comprising an annular inlet part 4 22 fixed to operating rods 23 placing it in place on the end of a distributor body, this part 22 comprising a frustoconical interior surface 24 of which the lower end 25 has an internal diameter of 50.8 mm, and having a centering provided by its outer skirt 26.
  • Air passages 27 having the form of recesses communicating the outside of the tubular body 4 with the gap 28 comprised between the frustoconical inner veil 29 of the part 22 and this body 4 are provided on the periphery of this annular part 22.
  • This entry piece 22 was used to introduce sliding pistons 3 into bodies 4 up to 1 to 2 mm from the pasty product, by pushing them with a circular pusher with a diameter of 30 mm at 60 mm / s, then used in recovery a pusher identical to that of Example 1 by driving the pasty product at 20 mm / s up to 3 to 4 mm from its filling level.
  • the use of the distributors thus pre-primed did not give any irregularity.
  • the two preceding introduction phases can be carried out with the same pusher 1 according to the invention (FIG. 6) by means of an appropriate command 2 and 31.
  • the invention applies mainly to distributors of cosmetic, pharmaceutical, hygienic and food products.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Sealing Of Jars (AREA)
EP90420342A 1989-07-19 1990-07-17 Procédé d'introduction d'un opercule à coulissement étanche dans un corps tubulaire cylindrique et dispositif correspondant Ceased EP0409750A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910379 1989-07-19
FR8910379A FR2649967B1 (fr) 1989-07-19 1989-07-19 Procede d'introduction d'un opercule a coulissement etanche dans un corps tubulaire cylindrique et dispositif correspondant

Publications (1)

Publication Number Publication Date
EP0409750A1 true EP0409750A1 (fr) 1991-01-23

Family

ID=9384372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420342A Ceased EP0409750A1 (fr) 1989-07-19 1990-07-17 Procédé d'introduction d'un opercule à coulissement étanche dans un corps tubulaire cylindrique et dispositif correspondant

Country Status (10)

Country Link
US (1) US5083416A (no)
EP (1) EP0409750A1 (no)
JP (1) JPH0356290A (no)
CA (1) CA2020921A1 (no)
FI (1) FI903638A0 (no)
FR (1) FR2649967B1 (no)
IE (1) IE902620A1 (no)
IS (1) IS3594A7 (no)
NO (1) NO903214L (no)
PT (1) PT94755A (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2520375A3 (de) * 2011-05-04 2012-12-05 Ritter GmbH Verschluss- und Ausdrückkolben für Kartuschen für plastische Massen

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449094A (en) * 1992-05-18 1995-09-12 Sofab Dispenser with plunging sleeve
SE502434C2 (sv) * 1994-02-10 1995-10-16 Lars Olof Andersson Förfarande och anordning för tillslutning av åtminstone den ena änden av ett rör samt för tillslutningen avsedd plugg
US5519984A (en) * 1995-03-16 1996-05-28 Mallinckrodt Medical, Inc. Methods for packaging a pressure or vacuum sensitive product
NL1012332C2 (nl) * 1999-06-15 2000-12-18 Robert Young Doseerinrichting voorzien van een flu´dum omvattende houder alsmede een dergelijke houder.
DE10211226B4 (de) * 2002-03-13 2004-05-13 Aventis Behring Gmbh Verfahren zum Entlüften einer mittels eines elastischen Stopfens verschlossenen, gefüllten Flasche sowie Vorrichtung zur Durchführung des Verfahrens
AU2003273230A1 (en) 2002-08-13 2004-02-25 Medical Instill Technologies, Inc. Container and valve assembly for storing and dispensing substances, and related method
USD650067S1 (en) 2002-10-16 2011-12-06 Medical Instill Technologies, Inc. Dispenser
EP1631496B1 (en) 2003-04-28 2014-02-26 Medical Instill Technologies, Inc. Container with valve assembly for filling and dispensing substances, and apparatus and method for filling
US6997219B2 (en) * 2003-05-12 2006-02-14 Medical Instill Technologies, Inc. Dispenser and apparatus and method for filling a dispenser
US7226231B2 (en) * 2003-07-17 2007-06-05 Medical Instill Technologies, Inc. Piston-type dispenser with one-way valve for storing and dispensing metered amounts of substances
US7845517B2 (en) * 2003-12-10 2010-12-07 Medical Instill Technologies Inc. Container and one-way valve assembly for storing and dispensing substances, and related method
US7264142B2 (en) 2004-01-27 2007-09-04 Medical Instill Technologies, Inc. Dispenser having variable-volume storage chamber and depressible one-way valve assembly for dispensing creams and other substances
RU2377127C2 (ru) * 2004-05-13 2009-12-27 Айзапак Холдинг С.А. Способ сварки контейнера
WO2006063360A2 (en) * 2004-12-10 2006-06-15 Medical Instill Technologies, Inc. Container and valve assembly for storing and dispensing substances, and related method
US7421831B2 (en) * 2005-11-01 2008-09-09 Nexus Biosystems, Inc. System and method for simultaneous capping/de-capping of storage containers in an array
DE102006053453B4 (de) * 2006-11-11 2010-05-06 Kettenbach Gmbh & Co. Kg Befüllter Behälter mit einem Kolben und Verfahren zum Befüllen und Entlüften eines Behälters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004100A1 (en) * 1978-03-14 1979-09-19 Ole Simonni Mundeling Nielsen A piston for ejecting a viscous or plastic mass
EP0245210A1 (de) * 1986-05-09 1987-11-11 HILTI Aktiengesellschaft Auspresskolben mit Speicherkammer
FR2605983A1 (fr) * 1986-11-03 1988-05-06 Cebal Distributeur pour produit pateux et procede d'introduction de son piston a l'interieur de son corps tubulaire

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614C (de) * U. R. MAERZ, Ingenieur, und F. SCHMIDT, Fabrikant, in Berlin Vorrichtung an Verkorkungsmaschinen zum unmittelbaren Aufsetzen der Pfropfen auf die Flüssigkeit
US2665832A (en) * 1948-11-20 1954-01-12 Triangle Package Machinery Co Capping machine
US2717730A (en) * 1952-08-14 1955-09-13 Lily Tulip Cup Corp Apparatus for applying closure lids to containers
US2849848A (en) * 1953-12-07 1958-09-02 West Co Stopper-applying machines
US2903832A (en) * 1956-08-27 1959-09-15 Armstrong Cork Co Closure affixing device
US3270483A (en) * 1963-09-20 1966-09-06 Richardson Merrell Inc Method and apparatus for assembling syringes
US4819936A (en) * 1988-02-05 1989-04-11 Donald Muller Back and leg stretcher
US4864799A (en) * 1988-08-18 1989-09-12 Colacicco Ralph D Air operated plastic pail capper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004100A1 (en) * 1978-03-14 1979-09-19 Ole Simonni Mundeling Nielsen A piston for ejecting a viscous or plastic mass
EP0245210A1 (de) * 1986-05-09 1987-11-11 HILTI Aktiengesellschaft Auspresskolben mit Speicherkammer
FR2605983A1 (fr) * 1986-11-03 1988-05-06 Cebal Distributeur pour produit pateux et procede d'introduction de son piston a l'interieur de son corps tubulaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2520375A3 (de) * 2011-05-04 2012-12-05 Ritter GmbH Verschluss- und Ausdrückkolben für Kartuschen für plastische Massen

Also Published As

Publication number Publication date
FI903638A0 (fi) 1990-07-18
IE902620A1 (en) 1991-02-27
NO903214D0 (no) 1990-07-18
FR2649967B1 (fr) 1991-09-20
IS3594A7 (is) 1991-01-17
JPH0356290A (ja) 1991-03-11
CA2020921A1 (fr) 1991-01-20
US5083416A (en) 1992-01-28
FR2649967A1 (fr) 1991-01-25
NO903214L (no) 1991-01-21
PT94755A (pt) 1992-07-31

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