EP4122355A1 - Compte-gouttes - Google Patents

Compte-gouttes Download PDF

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Publication number
EP4122355A1
EP4122355A1 EP22185398.9A EP22185398A EP4122355A1 EP 4122355 A1 EP4122355 A1 EP 4122355A1 EP 22185398 A EP22185398 A EP 22185398A EP 4122355 A1 EP4122355 A1 EP 4122355A1
Authority
EP
European Patent Office
Prior art keywords
pipette
dropper
cap
gasket
flange
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Withdrawn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
EP22185398.9A
Other languages
German (de)
English (en)
Inventor
Giampaolo Herrmann
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.)
Eurovetrocap SpA
Original Assignee
Eurovetrocap SpA
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 Eurovetrocap SpA filed Critical Eurovetrocap SpA
Publication of EP4122355A1 publication Critical patent/EP4122355A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0241—Drop counters; Drop formers
    • B01L3/0272—Dropper bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06—Fluid handling related problems
    • B01L2200/0689—Sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/04—Closures and closing means
    • B01L2300/041—Connecting closures to device or container
    • B01L2300/042—Caps; Plugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/12—Specific details about materials
    • B01L2300/123—Flexible; Elastomeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
    • B01L2400/049—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics vacuum

Definitions

  • the present invention relates to a dropper.
  • a dropper for cosmetic and or medical fluids for example, those in liquid form or in cream form.
  • droppers are made of several different parts, which may also be made of very different and hard to recycle materials.
  • the object of the present invention is to provide a dropper which is improved with respect to the prior art.
  • a further object of the invention is to provide a dropper that is easier to recycle than conventional droppers.
  • Not least object of the invention is to provide a dropper formed of a smaller number of parts than commonly known droppers, which is advantageous in terms of manufacturing costs as well as assembly simplicity and speed.
  • reference number 1 is used to denote, as a whole, a dropper.
  • the dropper 1 comprises a pipette 2 formed of an elongated element 2B which delineates a cavity 8 which is open - at a free end 2A thereof - due to the presence of a passageway 10.
  • the pipette 2 also comprises a flange 2C for the fastening thereof onto a screw cap 3.
  • the pipette 2 is made as a single body by injection-moulding.
  • One material of which the pipette can be made is PP.
  • the flange 2C of the pipette is coupled by means of an undercut to the cap 3, which is preferably a pressure-fit cap.
  • the cap has a special seat S whose perimeter may be the same as the external perimeter of the flange and also has a tooth D on the bottom thereof to engage and lock the pipette to the cap.
  • the screw cap consists of a single body comprising a skirt 4 on which a thread 5, facing the pipette 2, is provided for coupling the dropper 1 to a bottle 6.
  • the cap 3 comprises a deformable wall 7 facing the said pipette 2 so that, when the deformable wall is pushed towards the pipette and the pipette 2 has its free end 2A immersed in a fluid, a vacuum is generated which sucks the said fluid back inside the cavity 8.
  • the flange 2C have a first sealing gasket 11 designed to cooperate with a mouth 6A of the bottle 6 when the dropper 1 is mounted on the bottle.
  • the first gasket 11 may be an annular lip gasket, the lip being flexible, as can be clearly seen in Figure 3 .
  • the lip is continuously tapered starting from the flange 2C up to its free end.
  • the section of the lip may decrease from the flange 2C to the lip free end.
  • the lip is curved.
  • the lip is curved so that it forms a convex part facing the skirt 4.
  • the lip may therefore feature a slight curvature towards the axis of the pipette 2.
  • the flange 2C may feature a second gasket 12A, 12B designed to create seal with the cap 3.
  • the second gasket may be of a similar type to the first gasket, therefore a lipped gasket 12A, the lip being flexible, as shown in Figure 3 .
  • the second gasket may also be an 'annular' lip which, advantageously, is continuously tapered, starting from the flange 2C up to its free end.
  • the lip may also feature a slight curvature towards the axis of the pipette 2.
  • the lips of the first and the second gasket may feature a similar shape and similar characteristics, as described above.
  • the gasket may consist of a protruding ring 12B which engages tightly in a suitable annular seat 13 in the cap 3.
  • the elastically deformable wall 7 may consist of the top of the cap 3 and may be made by having a thinner portion 7A of the cap, which preferably has an annular conformation.
  • the deformable wall 7 features a groove 20 around the perimeter thereof which increases the deformation capacity of the said wall.
  • the deformable wall 7 has a dome conformation, as can be clearly seen in Figure 2 .
  • the top of the dome facing the pipette 2 may feature a thicker section (which helps the production of the mould).
  • the pipette 2 may feature a recess 2D (made to communicate with the cavity 8) which accommodates (at least partially) the said thicker section when the deformable wall 7 is deformed.
  • the screw cap 3 is made as a single body, preferably by means of the technique consisting injection moulding plastic material.
  • the plastic material used for the cap is preferably made of PP with an added elastomer, such as EVA.
  • EVA elastomer
  • the weight percentage of EVA is 15%.

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Closures For Containers (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Dry Shavers And Clippers (AREA)
EP22185398.9A 2021-07-20 2022-07-18 Compte-gouttes Withdrawn EP4122355A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000019166A IT202100019166A1 (it) 2021-07-20 2021-07-20 Contagocce

Publications (1)

Publication Number Publication Date
EP4122355A1 true EP4122355A1 (fr) 2023-01-25

Family

ID=78086786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22185398.9A Withdrawn EP4122355A1 (fr) 2021-07-20 2022-07-18 Compte-gouttes

Country Status (2)

Country Link
EP (1) EP4122355A1 (fr)
IT (1) IT202100019166A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US941489A (en) * 1909-11-30 Frank M Beverly Medicine-dispenser.
US2872950A (en) * 1954-03-12 1959-02-10 Johnson & Johnson Dispensing device
US3312255A (en) * 1964-04-23 1967-04-04 Miller Ellison Liquid container and dropper assembly
FR2319538A1 (fr) * 1975-07-26 1977-02-25 Finke Kunststoff Robert Capuchon obturateur a pipette pour flacons
ES1023420U (es) * 1993-01-08 1993-07-01 Borrel Boer Asuncion Tapon cuentagotas.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US941489A (en) * 1909-11-30 Frank M Beverly Medicine-dispenser.
US2872950A (en) * 1954-03-12 1959-02-10 Johnson & Johnson Dispensing device
US3312255A (en) * 1964-04-23 1967-04-04 Miller Ellison Liquid container and dropper assembly
FR2319538A1 (fr) * 1975-07-26 1977-02-25 Finke Kunststoff Robert Capuchon obturateur a pipette pour flacons
ES1023420U (es) * 1993-01-08 1993-07-01 Borrel Boer Asuncion Tapon cuentagotas.

Also Published As

Publication number Publication date
IT202100019166A1 (it) 2023-01-20

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