EP0693435A1 - Das Nachtropfen verhütender Ausgiesser - Google Patents

Das Nachtropfen verhütender Ausgiesser Download PDF

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Publication number
EP0693435A1
EP0693435A1 EP95420194A EP95420194A EP0693435A1 EP 0693435 A1 EP0693435 A1 EP 0693435A1 EP 95420194 A EP95420194 A EP 95420194A EP 95420194 A EP95420194 A EP 95420194A EP 0693435 A1 EP0693435 A1 EP 0693435A1
Authority
EP
European Patent Office
Prior art keywords
spout
pouring
holes
container
pouring device
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.)
Granted
Application number
EP95420194A
Other languages
English (en)
French (fr)
Other versions
EP0693435B1 (de
Inventor
Bernard Guglielmini
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.)
Rical SA
Original Assignee
Rical SA
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 Rical SA filed Critical Rical SA
Publication of EP0693435A1 publication Critical patent/EP0693435A1/de
Application granted granted Critical
Publication of EP0693435B1 publication Critical patent/EP0693435B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/40—Closures with filling and discharging, or with discharging, devices with drip catchers or drip-preventing means

Definitions

  • the present invention relates to plastic closure devices, used on various containers for various liquids, food or not. More specifically, it relates to the plugging of containers involving internal pressure to extract the content from a pouring or outlet orifice, such as those with pumps or flexible walls on which the user can exert a pressure.
  • a lip of suitable shape which surrounds the outlet orifice and which plays, under certain conditions of viscosity and surface tension, the role of "drip cutter".
  • the lip systems are not very effective, in the case of receptacles with flexible walls or with a pump, in suppressing the formation of a drop.
  • a capillary channel is provided formed in the thickness of the wall of the spout and opening out at the natural place of formation of the drop, so to involve the phenomenon of " ascent in the capillary tubes " to aspirate the drop and return it inside the container.
  • the present invention aims to respond to the still unsatisfactory problem of suppressing the formation of the last drop of a liquid extracted from the outlet or pourer of a container, more particularly at internal pressure. whatever the diameter of this orifice.
  • the object of the invention can be used on all containers intended to contain liquid or semi-pasty products, whether they are food or not and the extraction of which is ensured by an internal relative pressurization.
  • the invention finds a preferred, but not limiting, application to receptacles with flexible walls, such as those frequently used in the domestic field.
  • the invention relates to an anti-drip pouring device for pressure extraction containers, of the type comprising a pouring spout of generally tubular shape having an outlet orifice bordered by a widened lip and originating from an upstream constriction connecting it to the container, such a device being characterized in that at least one through hole is formed in the wall of the spout in a region of the latter as close as possible to the constriction.
  • Figure 1 is a schematic view showing the phenomenon of conventional flow at the time of rupture of the liquid film.
  • Figure 2 is a schematic view illustrating a detail of this rupture of the film.
  • FIG. 3 represents a pouring device, of the type usually used for containers with extraction by relative internal pressure.
  • Figure 4 shows the object of the invention.
  • Figure 5 is a sectional elevation of an embodiment according to the invention.
  • FIG. 6 is a plan view, part removed from FIG. 5 .
  • the ⁇ P value is however diminished by depression certainly concerning, but still existing, which is installed in the container during the extraction. This results in a slow speed flow which imposes a large passage section 3 of the pouring element 2 , generally of the order of a few cm. Under these conditions, the flow is always laminar, even in the case of liquids with very low viscosity.
  • FIG. 2 makes it possible to understand the phenomenon of rupture of the liquid film, caused by the surface tension forces, as soon as the thickness of the layer of liquid becomes insufficient at the level of the part 4 .
  • FIG. 2 illustrates the case of a liquid which does not wet the wall of the pouring element 2 .
  • the volume of the drop remaining attached to the pouring spout is then proportional to the length X separating the part 4 of the end lip 5 defining the outlet edge of the pouring element.
  • the lamination of the fluid is no longer carried out at the outlet of the pouring element, but at the level of the smallest passage section, as shown in 6 in the figure. 3 and which is generally extended by a pouring spout 7 of larger section and of more or less length, such a pouring spout finding its use in the geometric requirements for forming and adapting a closure cap.
  • the maximum lamination point where the liquid film breaks is located at the constriction 6 , that is to say at the base of the pouring spout 7 which is responsible for the retention of a volume of liquid V0 .
  • the phenomenon here to be considered is that of the risk of automatic emptying of the liquid retained by a phenomenon of entrainment by the mass of liquid supplied by the pouring element.
  • the object of the invention is to propose means making it possible precisely to avoid the retention of liquid in the volume V0 and its automatic emptying after the flow, initiated by relative internal pressure, has ceased.
  • These means consist, as shown in Figure 4 , in at least one through hole 9 formed in the wall of the spout 7 in a region located as close as possible to the constriction 6 , so as to eliminate the depression resulting from the cancellation of the liquid flow in the spout 7 when the internal relative pressure ceases.
  • the liquid can continue its movement at constant speed in the spout and this, even after the pressure forces which have communicated its kinetic energy to it, have ceased to manifest themselves.
  • the pouring spout 7 is advantageously of cylindrical, even cylindro-conical tubular shape, and then receives the pressurized liquid from the flared side of the cone.
  • the outlet or spout of the spout 7 is defined by the opposite extreme edge which is advantageously, but not necessarily, provided with a thin, open lip, 10 , the distance d between the throttle 6 and the lip 10 being able be arbitrary, or even limited to the direct connection of said lip with the constriction 6 .
  • the hole (s) 9 have a diameter of preferably between 0.5 and 1.5 mm and, in the event of plurality, are advantageously drilled along one or more straight planes transverse to the axis x - x ' of the spout 7 . In such a case, an implantation of the holes in alignment or staggered from one straight plane to another can be indifferently retained.
  • the holes 9 can be described as recompression or more precisely as balanced pressure restoration orifices on either side of the throttle 6 .
  • the diameter ⁇ of these holes 9 must be sufficient to prevent a meniscus of liquid from blocking it.
  • a flow reducer can advantageously be integrated inside the pouring spout.
  • FIG. 5 shows an industrial embodiment of a pouring element or device, preferably but not exclusively of the stretchable type, adaptable to a container, not shown, using a relative internal pressure for extracting the liquid fluid which it contains.
  • Such an element or device designated by the general reference 20 comprises a base 21 for adaptation on a container.
  • the base 21 is extended by a stretching bellows 22 , itself extended by a neck 23 , preferably externally threaded, to allow the adaptation of a screwed closure cap 24 .
  • the neck 23 constitutes by itself the constriction 6 which has been discussed previously.
  • the constriction 6 may result from the reduction in the cross-sectional area specific to the neck 23 additionally by an internal conformation 25 with a reducing, or even regulating, flow function. This configuration is shown by way of example in FIG. 6 corresponding to a top view of the pouring element after removal of the plug 24 .
  • the neck 23 has, at the end, the lip 10 capable of cooperating with the internal face of the plug 24 .
  • two diametrically opposite holes 9 are provided in the connection part between the lip 10 and the constriction formed by the neck 23 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Apparatus For Making Beverages (AREA)
  • Cartons (AREA)
EP95420194A 1994-07-12 1995-07-12 Das Nachtropfen verhütender Ausgiesser Expired - Lifetime EP0693435B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9408876A FR2722481B1 (fr) 1994-07-12 1994-07-12 Dispositif verseur anti-goutte.
FR9408876 1994-07-12

Publications (2)

Publication Number Publication Date
EP0693435A1 true EP0693435A1 (de) 1996-01-24
EP0693435B1 EP0693435B1 (de) 1998-04-15

Family

ID=9465494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95420194A Expired - Lifetime EP0693435B1 (de) 1994-07-12 1995-07-12 Das Nachtropfen verhütender Ausgiesser

Country Status (7)

Country Link
EP (1) EP0693435B1 (de)
CN (1) CN1121028A (de)
AT (1) ATE165065T1 (de)
BR (1) BR9503264A (de)
DE (1) DE69502058T2 (de)
ES (1) ES2114286T3 (de)
FR (1) FR2722481B1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878996A (en) * 1931-01-19 1932-09-27 Firm Porzellanfabrik Weiden Ge Dripless spout for pouring vessels of ceramic material
DE605555C (de) * 1936-01-03 Ernst Carl Baehni Tropfen verhuetender Ausgiesser fuer Flaschen
FR1000051A (fr) * 1949-10-11 1952-02-07 Tube verseur adaptable à des embouchures de récipients de dimensions différentes
FR1027269A (fr) * 1950-11-07 1953-05-11 Appareil versant les liquides sans baver
EP0129934A1 (de) * 1983-06-22 1985-01-02 WASSILIEFF, Victor Verschluss- und Ausgabevorrichtung für Fluidumbehälter
EP0386290A1 (de) * 1989-03-08 1990-09-12 Hsien-Chang Lin Nichtnachtropfender Flaschenverschluss

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605555C (de) * 1936-01-03 Ernst Carl Baehni Tropfen verhuetender Ausgiesser fuer Flaschen
US1878996A (en) * 1931-01-19 1932-09-27 Firm Porzellanfabrik Weiden Ge Dripless spout for pouring vessels of ceramic material
FR1000051A (fr) * 1949-10-11 1952-02-07 Tube verseur adaptable à des embouchures de récipients de dimensions différentes
FR1027269A (fr) * 1950-11-07 1953-05-11 Appareil versant les liquides sans baver
EP0129934A1 (de) * 1983-06-22 1985-01-02 WASSILIEFF, Victor Verschluss- und Ausgabevorrichtung für Fluidumbehälter
EP0386290A1 (de) * 1989-03-08 1990-09-12 Hsien-Chang Lin Nichtnachtropfender Flaschenverschluss

Also Published As

Publication number Publication date
ATE165065T1 (de) 1998-05-15
CN1121028A (zh) 1996-04-24
FR2722481A1 (fr) 1996-01-19
FR2722481B1 (fr) 1996-10-11
ES2114286T3 (es) 1998-05-16
DE69502058T2 (de) 1998-08-06
DE69502058D1 (de) 1998-05-20
EP0693435B1 (de) 1998-04-15
BR9503264A (pt) 1996-07-09

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