[go: up one dir, main page]

WO1997008072A1 - Embout compte-gouttes destine a la formation de gouttelettes - Google Patents

Embout compte-gouttes destine a la formation de gouttelettes Download PDF

Info

Publication number
WO1997008072A1
WO1997008072A1 PCT/DK1996/000347 DK9600347W WO9708072A1 WO 1997008072 A1 WO1997008072 A1 WO 1997008072A1 DK 9600347 W DK9600347 W DK 9600347W WO 9708072 A1 WO9708072 A1 WO 9708072A1
Authority
WO
WIPO (PCT)
Prior art keywords
dropper tip
tip according
abutting
dropper
outer side
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
PCT/DK1996/000347
Other languages
English (en)
Inventor
Jørgen BRUUN-JENSEN
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.)
Bristol Myers Squibb Co
Original Assignee
Bristol Myers Squibb Co
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 Bristol Myers Squibb Co filed Critical Bristol Myers Squibb Co
Priority to AU66557/96A priority Critical patent/AU6655796A/en
Publication of WO1997008072A1 publication Critical patent/WO1997008072A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers

Definitions

  • the invention relates to a dropper tip for the formation of small droplets, in particular for use in containers for dispensing eye-drops, comprising a member with a tapering end for the formation of drops from a liquid discharged on the outer side of the element, and a liquid supply duct which ends at the outer side of the tapering member.
  • Norwegian Patent No. 14889 discloses a dropper tip of the above type.
  • This known dropper tip comprises in one embodiment a tapering pin of for instance triangular cross-section and with a rounded head. The pin is inserted in a block with a through hole, the diameter of which is slightly larger than the largest diameter of the pin.
  • the block is in turn inserted into the side of-a plug positioned in the neck of a bottle containing the liquid to be dispensed in form of small droplets.
  • the liquid flows through a bore in the plug to the block, from where it slowly runs onto the conical part of the pin through the narrow duct formed between the pin and the hole in the block.
  • the liquid seeks downwards towards the point of the pin, from where it drops down in form of droplets, when the size or the weight of the droplet formed is sufficient to overcome the adhesion to the point of the pin.
  • the dimensions of the point of the pin determine the size of the droplets, and it is stated that by using pins, the outmost point of which has been cut farther away from or closer to the base of the pin, either a smaller or larger adhesion surface for the liquid is attained and consequently finer or larger drops, respectively.
  • a glass pin with a rounded head has been inserted into a hole in the bottom of a pipette.
  • it may preferably be made slightly uneven or grooved, ducts being thus created between the pin and the edge of the hole.
  • the known dropper tip is, moreover, unsuitable for mass-production by casting in plastics, as it is difficult when casting to produce fine pins or uneven or grooved pin heads, which result in reproducible duct cross-sections, when these pins are placed in fine holes made during the casting. It is in practice also difficult during the casting to produce fine holes of a reproducible size, as, for this purpose, fine, and consequently fragile cores have to be used.
  • EP Patent Application No. 93493 discloses a device for dispensing a liquid in form of drops from a compressible bottle. This device is between a cap on the neck of the bottle and the outlet nozzle of the dropper tip provided with an elongate tube which is filled with long, thin fibres, the interspaces between the fibres forming a huge number of ducts, each having a very small cross-section, which prevents the liquid from the bottle from flowing out too quickly. This construction is likewise unsuitable for casting in plastics.
  • the object of the invention is to provide a dropper tip of the above type, which is suited for mass- production in plastics and which allows an exact and reproducible design of the liquid supply duct.
  • the object is met by a dropper tip of the type mentioned by way of introduction, which dropper tip is characteristic in that the member consists of two surfaces abutting each other, and in that the liquid supply duct comprises a fine groove positioned in a first surface which in a direction perpendicular to the surface is sealed tightly by the second surface. It is hereby made possible to form the duct in a surface by means of well-known methods which allow an easy attainment of the necessary precision of the cross-section of the duct.
  • the fine groove in the first surface may be embedded, or be made by scratching, engraving, milling or embossing. At the casting and by embossing very fine grooves or indentations may be produced in the surface, but in particular scratching, engraving and milling make it posible to produce grooves as fine as a hair with a well-defined cross-section.
  • the surfaces abutting each other may in a second embodiment be plane.
  • a further embodiment is characeristic in that the tapering end of the member is shaped as a cone, and in that the surfaces abutting each other hold the axis of the cone.
  • the element may at the end opposite the tapering end be shaped as a circular-cylindrical plug.
  • the dropper tip is conical as described immediately above and for instance composed by two symmetrical parts, the two parts may be held firmly pressed against each other during the insertion in the neck of the bottle.
  • the dropper tip may comprise a mantle surrounding the outer side of the member such that the tapering portion of the dropper tip is hidden.
  • part of the mantle may be a cylindrical sleeve, in which the member is resiliently retained, such that the surfaces of the member abutting each other are pressed tightly together.
  • the neck of the bottle in which the dropper tip is inserted in a bottle with neck, the neck of the bottle may protrude over the dropper tip and form a mantle surrounding the outer side of the element.
  • the fine groove may be sinuous.
  • very long grooves may be provided in the surface, said grooves giving a correspondingly large resistance towards throughflowing.
  • Fig. 1 is a longitudinal view of a dropper tip according to the invention consisting of a cone point and a ring,
  • Fig. 2 is a perspective view of the cone point according to Fig. 1,
  • Fig. 3 is a perspective view of the ring according to Fig. 1,
  • Fig. 4 is a plane view of the ring according to Fig. 3, seen in the direction IV-IV in Fig. 3
  • Fig. 5 is a lateral view of a dropper tip according to another embodiment
  • Fig. 6 is a cross-section of an engraved groove
  • Fig. 7 is a cross-section of a cast groove
  • Fig. 8 is a cross-section of another cast groove
  • Fig. 9 is a sectional view of a dropper tip with a sinuous groove.
  • the dropper tip 1 shown in Figs. 1 - 4 comprises a ring 7 and a cone point 2 with a neck 3, in which longitudinal grooves 4 are provided, said grooves ending at the plane base 6 of the cone point.
  • the periphery of the ring has a conical portion 9 abutting the surface 11 and a cylindrical portion 10 abutting the opposite end surface.
  • the ring has a central bore 8 which at its mouth in the surface 11 is provided with a bevel 5.
  • the conical portion 9 has the same conicity as the cone point 2.
  • the dropper tip may be pressed into the neck of a dispensing bottle, where it acts as a plug through the cylindrical portion 7 fitting tigthly into the bottle neck.
  • the bottle is turned upside down, such that the liquid in the bottle covers the end surface of the dropper tip simultaneously with a squeezing of the sides of the bottle towards each other.
  • the liquid flows down through the ducts 4 to an annular compartment formed between the bevel 5 and the neck 3. From there, the liquid is pressed in a weak flow through the fine grooves 12 in the surface 11 to the outer side of the dropper tip and further on to the point of the cone, from where it drips down.
  • the dropper tip shown in Fig. 1 consists of two substantially symmetrical half portions 15 and 25 cast integrally in plastics.
  • the half portions are connected by flat, flexible hinge means 28 and are connected by their plane surfaces 20 and 26 being swung towards each other around the hinge means 28, the locking pins 27 on the surface 26 engaging corresponding holes 22 in the surface 20.
  • the fine grooves 21 are closed in a direction perpendicular to the surface 20 by the surface 26.
  • a dropper tip with a conical member 16 surrounded by a mantle 17 is provided.
  • the mantle is on top provided with a recess 18 fitting into the neck of a dispensing bottle.
  • the dropper tip has a central cavity 19, from which the grooves 21 extend to the outer side of the member 16.
  • the grooves 21 extend to the outer side of the member 16.
  • Fig. 6 shows at a larger scale a cross-section of the groove 12 in the surface 11 shown in Figs. 3 and 4.
  • the groove 12 has been scratched into the surface 11 by an instrument which has given it a triangular cross- section.
  • the groove 21 shown in Fig. 7 in the surface 20 is an example of a groove produced during the casting of the dropper tip.
  • the groove 30 in Fig. 8 is likewise produced during the casting.
  • the groove forms a flat depression which is only a few hundredth mm below the plane of the surface 31.
  • the curved grooves 32 shown in Fig. 9 are arranged in such a way that they, as far as possible, fill out the area at disposal of the surface 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Cet embout compte-gouttes est pourvu d'un élément (16) pointu, lequel présente un conduit (19, 21) d'alimentation en liquide dirigeant le liquide vers le côté extérieur de l'élément (16). Celui-ci (16) comporte deux surfaces (20, 26) jointives, une partie du conduit d'alimentation en liquide étant formée sur la première surface (20) en tant que fine rainure (21). Cette rainure (21) dont la direction est perpendiculaire à la première surface (20) est scellée de manière étanche par la seconde surface (26).
PCT/DK1996/000347 1995-08-22 1996-08-13 Embout compte-gouttes destine a la formation de gouttelettes Ceased WO1997008072A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU66557/96A AU6655796A (en) 1995-08-22 1996-08-13 A dropper tip for the formation of small droplets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK93495A DK93495A (da) 1995-08-22 1995-08-22 Drypstykke til dannelse af små dråber
DK0934/95 1995-08-22

Publications (1)

Publication Number Publication Date
WO1997008072A1 true WO1997008072A1 (fr) 1997-03-06

Family

ID=8099171

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1996/000347 Ceased WO1997008072A1 (fr) 1995-08-22 1996-08-13 Embout compte-gouttes destine a la formation de gouttelettes

Country Status (3)

Country Link
AU (1) AU6655796A (fr)
DK (1) DK93495A (fr)
WO (1) WO1997008072A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007037584A3 (fr) * 2005-09-29 2008-08-07 Hanmi Pharm Ind Co Ltd Embout compte-gouttes doseur pour solution medicinale

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560998A (en) * 1946-09-27 1951-07-17 Robert L Thonen Drop former bottle cap
DE2447553B2 (de) * 1974-10-02 1978-01-19 Padowicz, Miron, 1000 Berlin Tropfflasche
US5261570A (en) * 1991-04-22 1993-11-16 Hippely Keith A Flexible liquid dispenser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560998A (en) * 1946-09-27 1951-07-17 Robert L Thonen Drop former bottle cap
DE2447553B2 (de) * 1974-10-02 1978-01-19 Padowicz, Miron, 1000 Berlin Tropfflasche
US5261570A (en) * 1991-04-22 1993-11-16 Hippely Keith A Flexible liquid dispenser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007037584A3 (fr) * 2005-09-29 2008-08-07 Hanmi Pharm Ind Co Ltd Embout compte-gouttes doseur pour solution medicinale
CN101495079B (zh) * 2005-09-29 2011-12-07 韩美药品株式会社 药物溶液滴管

Also Published As

Publication number Publication date
DK93495A (da) 1997-02-23
AU6655796A (en) 1997-03-19

Similar Documents

Publication Publication Date Title
US5730322A (en) Multiple flow volume dispensing cap
US5324527A (en) Candy sucker and liquid candy dispensing assembly
US4471890A (en) Eye drop dispenser
US5713681A (en) Bingo card ink marker bottle
US5775546A (en) Dispensing bulb
US5263615A (en) Liquid applicator bottle
KR960701777A (ko) 유체 분배 시스템과 결합하여 유체를 수용, 분배하기 위한 병(bottle for containing a fluid)
BR9912713A (pt) Recipiente, e, processo para fabricação do mesmo
US5988442A (en) Customized reusable flow-through toothpaste tube attachment
AU2003259371A1 (en) Fluid dispenser
JPH02258564A (ja) 複数色表面ストライプ形成装置
WO1997008072A1 (fr) Embout compte-gouttes destine a la formation de gouttelettes
EP0362911A1 (fr) Bouteille pour dispenser de manière contrôlable un liquide goutte à goutte
US3241731A (en) Caps with spouts
US4475838A (en) Closure means for a liquid
US2783923A (en) Continuous-flow dropper device
JPH07275322A (ja) 目薬容器等の注ぎ口構造
NZ290739A (en) Dispensing nozzle having a head with nozzles of different lengths
CA2576457A1 (fr) Systeme de contenant
EP1024088B1 (fr) Buse pour un récipient pour délivrer des gouttes de liquide
US5048728A (en) Oral liquids dispenser
US20040155059A1 (en) Hand-held container
JP2627386B2 (ja) 瞬間接着剤用開封針ピン付きキャップ
EP0093493A1 (fr) Dispensateur compte-gouttes
JP3559386B2 (ja) 二液用塗布容器

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA