EP1166052A1 - Dispositif doseur pour la distribution de substances liquides - Google Patents

Dispositif doseur pour la distribution de substances liquides

Info

Publication number
EP1166052A1
EP1166052A1 EP00920580A EP00920580A EP1166052A1 EP 1166052 A1 EP1166052 A1 EP 1166052A1 EP 00920580 A EP00920580 A EP 00920580A EP 00920580 A EP00920580 A EP 00920580A EP 1166052 A1 EP1166052 A1 EP 1166052A1
Authority
EP
European Patent Office
Prior art keywords
insert
pump piston
liquid
container
riser pipe
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Withdrawn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
EP00920580A
Other languages
German (de)
English (en)
Inventor
Alfred Von Schuckmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1166052A1 publication Critical patent/EP1166052A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
    • G01F11/286—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement where filling of the measuring chamber is effected by squeezing a supply container that is in fluid connection with the measuring chamber and excess fluid is sucked back from the measuring chamber during relaxation of the supply container
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
    • G01F11/025—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons
    • G01F11/028—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons the dosing device being provided with a dip tube and fitted to a container, e.g. to a bottleneck

Definitions

  • Dispenser for dispensing liquid media
  • the invention relates to a metering device for dispensing liquid media from a container, which has a closure cap which overlaps the container neck and a cup-shaped insert associated therewith and is in tensile connection to a pump piston filling the cup-shaped insert with liquid, one towards the inside of the container leading riser pipe for use is provided.
  • the riser tube is designed as a capillary tube in order to prevent the liquid that has been sucked up from flowing back into the container immediately. This slows down actuation and poses a risk of damage to the pump parts if the cap is removed faster than the liquid can flow through the capillary tube. The liquid can hardly be pushed back into the container at all. Precise dosing is ruled out because the capillary force cannot completely neutralize the resulting negative pressure in the container.
  • a metering device of this type is known from DE-GM 94 11 522.
  • the pump piston In the basic position, the pump piston is located directly above the mouth of the riser pipe that closes with the bottom of the insert.
  • the solution provides a valve at the top of the riser. This is complex and prone to failure. Once there, an insert that has been filled can only be emptied by tipping it over and not by pushing it back into the container.
  • EP 0 484 528 proposes that the riser pipe go beyond the bottom of the insert to let.
  • the free - standing tube stem that ends in the dosing chamber ends with a baffle.
  • Cross slots are left below the baffle.
  • the excess portion of the liquid introduced into the metering chamber by squeezing the container runs back through these transverse slots, which act as filling limiters.
  • the splashing that occurs on the baffle is generally perceived as annoying.
  • the object of the invention is to design a generic metering device in a simpler and more advantageous manner.
  • the pump piston has a hollow piston shaft, in which the end of the riser pipe projecting above the bottom of the insert runs such that between the lateral surface of the Riser tube and inner wall of the piston skirt, a flow cross-section remains for the outflow of the liquid which has emerged from the riser pipe mouth in the direction of the bottom of the insert.
  • a residual air intermediate cushion, which is generated by the closing movement in the riser pipe, is beneficial.
  • the liquid coming in through the mouth of the riser pipe is "deposited" on the bottom of the insert without splashing over the return path provided.
  • the hollow shaft the pump piston itself represents a kind of splash guard.
  • the outer wall of the cylindrical insert leaves a ventilation cross section and leaves a transverse ventilation opening in the upper region, which is closed in the closed position of the closure cap.
  • the outer wall of the insert advantageously has a widening in the upper end region for the sealing entry of the collar. The latter also provides a favorable finding funnel for the pump piston when reassigning the closure cap.
  • an advantageous embodiment is achieved by latching between the closure cap and the pump piston.
  • the invention proposes that a hollow spigot entering the interior of the pump piston skirt extends from the interior of the sealing cap cover and engages on the inner surface of the pump piston skirt.
  • the hollow pin has the advantage of saving material and, moreover, of increasing the locking elasticity.
  • the annoying shrink marks on the outside of the cover of the screw cap also do not occur.
  • the pump piston forms an annular groove between two piston ring lips. This has a sealing effect and increases the dosing accuracy.
  • riser pipe is plug-and-socket-fitted by a sleeve on the bottom of the insert.
  • a frictional assignment is sufficient here.
  • FIG. 1 shows a vertical section through the metering device according to the invention, enlarged and in the closed position
  • Fig. 2 shows the dosing device in the same representation after completed dosing.
  • the dosing device D shown serves for the dosed delivery of a liquid medium from a container 1.
  • the liquid has the reference symbol 2.
  • the container 1 is rigid. It can be implemented as a glass bottle and merges into a narrowed container neck 3.
  • a substantially cylindrical opening 7 of the container 1 receives a cup-shaped insert 8. It also protrudes somewhat beyond the opening 7 into the container interior 9.
  • the cup-shaped insert 8 has a support flange 10 which projects beyond the maximum cross section of the insert 8. This occurs against a corresponding ring end face 11 of the container neck 3. At the same time, it acts as a ring seal with respect to the inside of a cover 12 of the screw cap 6.
  • the cup-shaped insert 8 forms the pump cylinder 13 of a pump device P of the dosing device D.
  • the inside of the pump cylinder 13 provides a cup for pouring out the dosing quantity introduced therein, reproducibly divided from the remaining quantity of liquid 2.
  • a riser pipe 14 serves as a lifting path in this regard. It extends, penetrating a bottom 15 of the pot-shaped insert 8, into the interior of the container 9. It extends with its lower, free end to a bottom 16 of the container 1.
  • a pump piston 17 has a suction effect. It can be axially displaced via screw cap 6. A shaft 18 of the pump piston 17 engages in the center of the screw cap 6. It is connected to it with tensile strength. It can be an integral assignment.
  • the longitudinal center axis of the essentially rotationally symmetrical meter D is designated x-x. It coincides with the longitudinal axis of the piston skirt 18 as well as that of the riser pipe 14 which extends into the interior of the insert 8.
  • the end of the riser pipe 14 projecting beyond the bottom 15 of the insert 8 is designated 14 '. It is free and is open at the top.
  • the floor-side passage area is lengthened for stable restraint of the riser pipe 14 on the insert 8.
  • a sleeve 19 formed underneath the base 15 serves for this purpose. It takes up the riser pipe cross section in a plug-in manner. Such a friction-fit plug-in holder has been found to be sufficient. It is also tight in relation to the vacuum situation in the pump cylinder 13, which is still to be explained.
  • the piston shaft 18 of the pump piston 17 is designed to be hollow.
  • the cavity in the area of the pump device P is chosen to be large enough that a clear flow cross section 20 remains between a lateral surface a of the riser pipe 14 and the corresponding inner wall b of the piston skirt 18. This serves for the outflow of the liquid 2, which has moved from the riser pipe mouth 21 under piston displacement, in the direction of the bottom 15 of the insert 8.
  • a sufficient flow-free zone 22 is also left in front of the riser pipe mouth 21 as a connection to the flow cross section 20.
  • the flow cross section 20 widens to form a kind of funnel 24. This acts in a plug-centering manner with respect to the riser mouth 21.
  • a hollow pin 25 is used, which is rooted in the cover cap cover 12. It is designed for locking between the closure cap 6 and the end of the pump piston 17 there, more precisely the piston shaft 18. Locking projections 26 of the hollow pin 25 on the casing wall adhere to counter-recesses on the inner surface or inner wall b of the piston skirt 18. Its material is sufficiently flexible so that these depressions can also press themselves.
  • annular collar 27 Likewise rooted in the ceiling 12, projecting into the interior of the closure cap 6, is an annular collar 27.
  • the collar extends concentrically to the central hollow pin 25 and also concentrically to the wall of the pump cylinder 13 of the pump device P.
  • the collar 27 acts as a closure member of an air balancing device LA. It comes into effect when the screw cap 6 is closed. It then closes a radial ventilation opening 28. It is arranged in the upper area, namely close to the ring face 11 of the insert 8.
  • the ventilation opening 28 oriented transversely in this area connects to a long channel section 29 in the outer wall 8 ′ of the cylindrical insert 8.
  • the long channel section 29 continues into a ventilation cross section 30 in the form of an annular gap on the container side. The latter connects to the interior of the container 9.
  • the annular gap-like ventilation cross section 30 arises from the fact that the insert 8 springs back from the exit of the longitudinal channel 29 with respect to the corresponding wall of the opening 7 of the container neck 3.
  • the section of the insert 8 located above there is a stopper-like arrangement of the part of the insert 8 which is larger in outside diameter.
  • the transition is realized as a rotationally symmetrical inclined wall jump.
  • the corresponding frustoconical transition zone can be clearly seen from the drawing.
  • the taper faces the container interior 9.
  • the offset mentioned leads to the outer wall 8 ′ of the insert 8 forming a widening 31 in the upper end region.
  • the collar 27 of the screw cap 6 enters in a plug-like and sealing manner.
  • the piston lips 17 'and 17'' are designated 17 'and 17''.
  • the former is located in the end face 23 of the pump piston 17 facing the bottom 15.
  • the face through the piston lips 17 ', 17'' The resulting annular groove of the pump piston 17 bears the reference number 32.
  • the piston lips 17 ', 17'' are designed to be free-standing according to clearances made on the piston skirt side.
  • the function is as follows: by unscrewing the screw cap 6, the pump piston 17 connected therewith in a tension-resistant manner is displaced in the upward direction of the metering device D. A negative pressure occurs in front of the end face 23 of the pump piston.
  • the liquid 2 rises coming from the supply.
  • the liquid flow swells out through the riser pipe mouth 21, enters the flow cross section 20 in the opposite direction, and is introduced into the cup-forming pump chamber 33 in front of the end face 23 of the increasingly rising pump piston 17, where the level rises continuously.
  • the flow path is indicated by line y.
  • the liquid can largely be returned to the container by screwing on the cap.
  • the filling vacuum acts as soon as the lower piston lip 17 'loses its guidance on the inner wall of the pump cylinder 13. This is the case when the pump piston 18 comes into the situation shown in FIG. 2, that is to say in the expansion 31 of the insert.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Closures For Containers (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Dispositif doseur (D) pour la distribution de substances liquides contenues dans un récipient (1) pourvu d'un bouchon (6) qui couvre le goulot (3) du récipient et une pièce rapportée (8) en forme de dé associée au goulot et se trouve solidaire en traction d'un piston (17) de pompe destiné à remplir de liquide (2) la pièce rapportée (8) en forme de dé, ledit dispositif comportant un tube de montée (14) qui pénètre dans l'intérieur (9) du récipient et qui va jusqu'à la pièce rapportée (8). Selon la présente invention, pour obtenir un dispositif présentant une structure plus simple et plus facile à utiliser, le piston (17) de pompe possède une tige (18) de piston creuse dans laquelle vient s'introduire l'extrémité (14') du tube de montée (14), en saillie par rapport au fond (15) de la pièce rapportée (8), de manière telle qu'il reste entre une surface externe (a) du tube de montée (14) et la paroi interne (b) de la tige (18) de piston une zone d'écoulement (20) destinée à l'écoulement du liquide (2) évacué par l'embouchure (21) du tube de montée en direction du fond (15) de la pièce rapportée (8).
EP00920580A 1999-03-30 2000-03-25 Dispositif doseur pour la distribution de substances liquides Withdrawn EP1166052A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29905620U 1999-03-30
DE29905620U DE29905620U1 (de) 1999-03-30 1999-03-30 Dosierer zur dosierten Ausgabe flüssiger Medien
PCT/EP2000/002652 WO2000060318A1 (fr) 1999-03-30 2000-03-25 Dispositif doseur pour la distribution de substances liquides

Publications (1)

Publication Number Publication Date
EP1166052A1 true EP1166052A1 (fr) 2002-01-02

Family

ID=8071476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00920580A Withdrawn EP1166052A1 (fr) 1999-03-30 2000-03-25 Dispositif doseur pour la distribution de substances liquides

Country Status (4)

Country Link
EP (1) EP1166052A1 (fr)
AU (1) AU4110600A (fr)
DE (1) DE29905620U1 (fr)
WO (1) WO2000060318A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4717996B2 (ja) * 2000-10-11 2011-07-06 サーパス工業株式会社 容器及びそれに用いるプラグ
DE102017105536A1 (de) 2017-03-15 2018-09-20 Samir Adanalic Dosiervorrichtung und Flüssigkeitsbehälter
US10875688B1 (en) 2019-11-25 2020-12-29 Berlin Packaging, Llc Child resistant senior friendly bottle packaging for liquids
US11161657B2 (en) 2019-11-25 2021-11-02 Berlin Packaging, Llc Child resistant senior friendly bottle packaging for liquids
USD1012725S1 (en) 2020-10-07 2024-01-30 Berlin Packaging, Llc Dosing container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272228A (en) * 1979-04-11 1981-06-09 Security Plastics, Inc. High volume dispensing pump
DE3310029A1 (de) * 1983-03-19 1984-09-20 Gebr. Jordan GmbH & Co KG, 5860 Iserlohn Dosierspenderpumpe fuer fluessigkeiten
FR2699390B1 (fr) * 1992-12-23 1995-02-10 Sodex Hexotol Sa Appareil distributeur pour produits liquides.
DE4304387A1 (de) * 1993-02-13 1994-10-13 Alfred Von Schuckmann Vorrichtung zur portionierten Entnahme von Flüssigkeit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0060318A1 *

Also Published As

Publication number Publication date
WO2000060318A1 (fr) 2000-10-12
DE29905620U1 (de) 2000-08-10
AU4110600A (en) 2000-10-23

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