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WO1991010115A1 - Dosing device for liquids - Google Patents

Dosing device for liquids Download PDF

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Publication number
WO1991010115A1
WO1991010115A1 PCT/EP1990/002106 EP9002106W WO9110115A1 WO 1991010115 A1 WO1991010115 A1 WO 1991010115A1 EP 9002106 W EP9002106 W EP 9002106W WO 9110115 A1 WO9110115 A1 WO 9110115A1
Authority
WO
WIPO (PCT)
Prior art keywords
dosing
liquid
external body
rim
dosing device
Prior art date
Application number
PCT/EP1990/002106
Other languages
French (fr)
Inventor
Evans Santagiuliana
Original Assignee
Taplast Srl
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 Taplast Srl filed Critical Taplast Srl
Publication of WO1991010115A1 publication Critical patent/WO1991010115A1/en

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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
    • G01F11/10—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 moved during operation
    • G01F11/26—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 moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus
    • G01F11/262—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 moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus for liquid or semi-liquid
    • G01F11/263—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 moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus for liquid or semi-liquid with valves

Definitions

  • the invention concerns a dosing device for liquids to be used in containers, for example for the dosing of fluid detergents, oils or chemical products in general, which have to be used according to selected amounts.
  • Known dosing devices consist of outflow ducts provided with channels in which a ball immersed in water moves; said ball shows a certain inertia and stops the outflow of the liquid. When the container is overturned, said ball obstructs the opening for the outflow of the liquid, after running along a obligatory path.
  • the main disadvantage of these devices is that a satisfactory dosing precision can be obtained only when the container is turned swiftly from the vertical position to the reversed vertical position; while sometimes unsatisfactory results - and even in contrast with the desired aims - are reached when the position of the container is not perfectly vertical: in fact, in same cases, the above mentioned outflow ducts continue delivering liquid because a continuous flow of liquid between the pre-dosing chamber and the delivering chamber is established.
  • the aim of the invention is to realize a dosing device for liquids which overcomes the aforementioned disadvantages.
  • the main goal to be obtained is that the dosing device works correctly without the need for the container to be reversed in a completely vertical position.
  • Another goal of the invention is to grant the pre-dosing of the liquid and the outflow of the pre-dosed liquid with accuracy and without any variations in the subsequent doses, even though the position of the dosing device is not completely vertical.
  • Another goal is to realize a dosing device composed of few elements preferably made of printed plastic material so that the dosing device is extremely cheap.
  • a dosing device for liquids to be mounted and sealed in the opening of a container • which, according to the content of claim 1, characterized in that it comprises: - a tubular external body having a neck sealed in the opening of the container, having one or more holes in proximity to said neck for the entrance of the liquid to be dosed and with an opened bottom which contains a sliding element inserted in said external body; - a two-volume sliding tubular cylindrical dosing element inserted in the opening of the bottom of the external body and having a closed bottom, said element being suitable to receive the dose of the liquid to be delivered;
  • the dosing element which acts as a collecting chamber of the dosed liquid, can advantageously slide towards the outflow duct, said dosing element being guided on the tubular final part of the external body of the dosing device so that the connecting surface between the the two cylindrical parts of said dosing element leans " on the rim of the tubular element of the outflow duct when the container is inclined downwards beyond the horizontal line, thus insuring the sealing between the two component parts of .the dosing device so as to exclude consequently any communication with the predosing chamber.
  • this communication between the outflow duct and the tubular element which collects the predosed liquid is established as soon as the dosing device is inclined beyond the horizontal position, and this occurs because of the hydraulic thrust exerted by the liquid which surrounds it in the container. Since the force of this thrust also depends on the viscosity of the liquid, the invention presupposes that for dense liquids the T
  • outflow duct is shaped in such a manner as to provide a larger surface to .
  • the liquid pressure action in order to insure the necessary thrust for the dosing element to lean against the rim of the outflow duct.
  • -Fig. 1 shows in view a container with the dosing device according to the invention
  • -Fig. 2 is a cross-section of the dosing device according to the invention, inserted in a container;
  • -Fig. 3 is a cross-section of the device according to the invention during the first phase, in which. the amount of liquid is collected;
  • -Fig. 4 is a cross-section of the device according to the invention during the second phase, in which the pre-dosed liquid is transferred into the collecting chamber;
  • -Fig. 5 is a cross-section of the device according to the invention, during the.phases of the delivering of the dose and the collection of a new dose in the dosing chamber;
  • -Fig. 6 is a cross-section of a constructive variant of the device according to the.invention;
  • -Fig. 7 is a cross-section of a further constructive variant according to the invention, showing the dosing device in the delivering phase.
  • -Fig. 8 is a cross section of the dosing device according to the variant of Fig. 7, showing the device which is transferring the pre-dosed liquid.
  • the dosing device has an external body, indicated as a whole with 10, a . tubular-shaped dosing ⁇
  • the external body 10 illustrated in the example is essentially cylinder-shaped. It has a surface 11 and a neck 13 on the upper part which insures the sealing of the hole of the container of the liquid, so as to prevent the liquid from flowing out during the phases of the delivering of the liquid.
  • the external body 10 has an opening 15 at. its bottom, on which the dosing element 20 sliding on the internal walls of the body 10 is located.
  • the tubular part 11 of the body 10 is preferably but not necessarily cylindrical, for it is sufficient that the part 11 has the same shape as that of the dosing element for the dosing element to slide in the walls of the body 12 and be guided by them.
  • the dosing element 20 is essentially a double-diameter cylinder and has a lower part 22 equipped with a bottom 21 and a diameter which is smaller than that of the superior part, which is inserted in such a way as to slide in the internal wall 12 of the body 10.
  • the two cylindrical parts -22 and 24 are jointed by means of a conic surface 23 which leans on the slanted border of the bottom of the external body 10.
  • the body 30 is the outflow duct of the dosed liquid; it is essentially cylindrical and has a crown 31, which matches internally the rim of the external body and has a tubular central body 32 which is concentric with said crown. Said body 30 has an open bottom, which is the proper outflow duct. Since the external diameter of the outflow tube 32 is smaller than the internal diameter of the external body 10 in zone 11, an annular zone 40 is formed because of the difference in length betveen the two diameters 11 and 32, said annular space being the proper dosing chamber of the liquid 51, which is in the container 50.
  • the outflow duct then, has a seal 33, which is removed when the package is opened and the container is ready to be used.
  • the dosing device operation according to the invention is as follows:
  • the liquid contained in the dosing chamber 40 is transferred into the dosing element 20, since said tubular element lowers out of gravity, its conic surface 23 resting on the inclined rim 16 of the external body 10, thereby forming the annular entrance 41 through which the dosed liquid flows.
  • the volume of the dosing chamber 40 is larger than the volume 26 of the dosing element 20, it happens that the liquid transferred from the dosing chamber into the dosing element is always in excess, so that, once the transfer is completed, the liquid in excess overflows from the holes 25, said liquid touching the conic part 23 so that the holes 25 work as spillways which grant a constant level of the pre-dosed liquid.
  • the subsequent proper delivering phase which is described in fig. 5, it .can be observed that the liquid contained in the tubular element 20 flows into the outflow duct 30 and then flows out.
  • the figures 2, 3, 4 and 5 embody a particular form of dosing device in which the proper dosing device indicated with 20 has a conic surface 23 and is guided into the external sliding element ' 10.
  • the shape of the dosing device 20 with its conic surface 23, which is illustrated in Fig. 3-5 is particularly suited to be used for the dosing of liquids with significant density, since the surface 23 adds up to the bottom surface 21 as regards the thrust that the liquid 51 contained in the container 50 exerts on the dosing device 20. If liquids with a low rate. of viscosity or a significantly high acqueous component are to be dosed, it is not necessary that the bottom surface 21 on which the hydraulic thrust acts is further increased by adding- the conic surface 23, as described in fig. 2. For this reason fig.
  • FIG. 6 shows a variant of the dosing device according to the invention, where the external element 10 has at its bottom a open cylindrical part 17 which guides the dosing element 20, said dosing element being essentially composed of a cylindrical part 22 and an upper conic part 26 which interacts with the terminal rim of the dosing element 30.
  • the rim 27 of the surface 26 of the dosing device 20 acts as a overflow level, since the liquid in excess with respect to the capacity of the dosing element 20 overflows from said rim 27 and flows from the holes 28 which, according to this variant, are part of the external body 10 and are located in the connecting surface 19, between the two cylindrical surfaces 11 and 22.
  • the body 20 shows four longitudinal grooves 35 which realize the aim of the invention.
  • the dosing device is a lid 60 which is molded together with the external body 10 in order to complete the dosing device itself.
  • the fig. 7 and 8 show a further variant of the dosing device according to the invention.
  • the dosing device 20, with its conic surface 23, is particularly suited to be used for the dosage of significantly dense liquids.
  • the dosing device is suited to be used also with low density liquids. More precisely, as can be seen in fig. 7, the dosing device 20 has a circular rim 35 located between the connecting conic surface 23 and the smaller diameter part 22, said circular rim 35 touching the internal surface 34 of the dosing element 30 when the dosing device is in the delivering position.
  • the rim 35 and the rim 34 of the outflow duct 32 insure the necessary sealing to avoid the outflow of the liquid contained in the chamber 40 through the outflow duct, so as to grant the same preselected dose.
  • the dosing element 20 slides downwards and the annular passage 41 opens, said passage opening notwithstanding the rim 35.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The invention discloses a dosing device comprising an essentially tubular external body (10), a sliding dosing element (20) inserted in the external body (10), an outflow duct coaxial with the internal surface of the external body (13), and a pre-dosing chamber (40) of liquid, located between the internal surface (11) of the external body (10) and the external surface (32) of the outflow duct. Said dosing device realizes a hermetic seal between the dosing element (20) and the pre-dosing chamber (40) when the device delivers the selected dose, and this occurs because of the hydraulic thrust on the sliding dosing element as soon as the container is inclined downwards beyond the horizontal line.

Description

"DOSING DEVICE FOR LIQUIDS"
The invention concerns a dosing device for liquids to be used in containers, for example for the dosing of fluid detergents, oils or chemical products in general, which have to be used according to selected amounts.
The trend of chemical industry, particularly the sector of detergents, is to provide containers equipped with dosing devices, in order to optimize the performance of the product contained therein, and also to avoid an uncontrolled use of the product which might lead, first of all, to worse results than those which can be obtained by the use of a selected quantity and, secondly, to ecological problems. For this reason containers for liquids equipped with dosing devices are getting more and more widespread.
Known dosing devices consist of outflow ducts provided with channels in which a ball immersed in water moves; said ball shows a certain inertia and stops the outflow of the liquid. When the container is overturned, said ball obstructs the opening for the outflow of the liquid, after running along a obligatory path.
One of the disadvantages of similar devices is that said balls must be adjusted in weight according to the density of the liquid to be dosed, in order to optimize their performance. Actually, with a rather dense liquid - such as that of a concentrated fluid detergent - a rather heavy ball must be used, in order to avoid its being suspended in the liquid itself for a prolonged or indefinite period. Of course, this type of dosing devices lack of accuracy, since the ball speed in the closing phase also depends on the head of the liquid on it. Other types of dosing devices essentially consist of bodies made up of a usually annular dosing chamber in which the liquid to be dosed enters from the bottom when the container is reversed, - and of another chamber where the liquid is collected and which fills up when the container is turned to its former position. The outflow of the liquid occurs when the container is reversed again, in which case both the outflow of the pre-dosed liquid and the entrance of another dose of liquid in the pre-dosing chamber occur.
The main disadvantage of these devices is that a satisfactory dosing precision can be obtained only when the container is turned swiftly from the vertical position to the reversed vertical position; while sometimes unsatisfactory results - and even in contrast with the desired aims - are reached when the position of the container is not perfectly vertical: in fact, in same cases, the above mentioned outflow ducts continue delivering liquid because a continuous flow of liquid between the pre-dosing chamber and the delivering chamber is established. The aim of the invention is to realize a dosing device for liquids which overcomes the aforementioned disadvantages. The main goal to be obtained is that the dosing device works correctly without the need for the container to be reversed in a completely vertical position.
Another goal of the invention is to grant the pre-dosing of the liquid and the outflow of the pre-dosed liquid with accuracy and without any variations in the subsequent doses, even though the position of the dosing device is not completely vertical. Another goal is to realize a dosing device composed of few elements preferably made of printed plastic material so that the dosing device is extremely cheap. All above mentioned purposes and others which will be better understood hereafter are fulfilled by the realization of a dosing device for liquids to be mounted and sealed in the opening of a container • which, according to the content of claim 1, characterized in that it comprises: - a tubular external body having a neck sealed in the opening of the container, having one or more holes in proximity to said neck for the entrance of the liquid to be dosed and with an opened bottom which contains a sliding element inserted in said external body; - a two-volume sliding tubular cylindrical dosing element inserted in the opening of the bottom of the external body and having a closed bottom, said element being suitable to receive the dose of the liquid to be delivered;
- an essentially cylindrical outflow duct having a crown coupling with the interior of the neck of the external body and a central tube whose lower rim is suited to be closed by the free border of the sliding tubular element;
- a pre-dosing chamber of the liquid formed by the internal surface of the external body and by the external surface of the outflow duct, where the connecting surface between the two cylindrical parts of the dosing element and the lower rim of the outflow duct are in such a reciprocal position as to realize an opening for the passage of the liquid from the pre-dosing chamber to the dosing element, only when the dosing device is in an essentially vertical position; said passage closes because of the contact of said connecting surface with the external rim of the outflow duct when the device is inclined downwards beyond the horizontal line. According to the invention the dosing element, which acts as a collecting chamber of the dosed liquid, can advantageously slide towards the outflow duct, said dosing element being guided on the tubular final part of the external body of the dosing device so that the connecting surface between the the two cylindrical parts of said dosing element leans "on the rim of the tubular element of the outflow duct when the container is inclined downwards beyond the horizontal line, thus insuring the sealing between the two component parts of .the dosing device so as to exclude consequently any communication with the predosing chamber. As has been said before, this communication between the outflow duct and the tubular element which collects the predosed liquid is established as soon as the dosing device is inclined beyond the horizontal position, and this occurs because of the hydraulic thrust exerted by the liquid which surrounds it in the container. Since the force of this thrust also depends on the viscosity of the liquid, the invention presupposes that for dense liquids the T
outflow duct is shaped in such a manner as to provide a larger surface to . the liquid pressure action in order to insure the necessary thrust for the dosing element to lean against the rim of the outflow duct. Further scope of applicability of the present invention will became apparent from the detailed description of two preferred embodiments of the invention, which are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will became apparent to those skilled in the art from this detailed description, and from drawings, wherein:
-Fig. 1 shows in view a container with the dosing device according to the invention; -Fig. 2 is a cross-section of the dosing device according to the invention, inserted in a container;
-Fig. 3 is a cross-section of the device according to the invention during the first phase, in which. the amount of liquid is collected; -Fig. 4 is a cross-section of the device according to the invention during the second phase, in which the pre-dosed liquid is transferred into the collecting chamber;
-Fig. 5 is a cross-section of the device according to the invention, during the.phases of the delivering of the dose and the collection of a new dose in the dosing chamber; -Fig. 6 is a cross-section of a constructive variant of the device according to the.invention;
-Fig. 7 is a cross-section of a further constructive variant according to the invention, showing the dosing device in the delivering phase. -Fig. 8 is a cross section of the dosing device according to the variant of Fig. 7, showing the device which is transferring the pre-dosed liquid.
With reference to the aforementioned figures, it will be observed that the dosing device according to the invention has an external body, indicated as a whole with 10, a . tubular-shaped dosing ζ
element, internally sliding in the external body, indicated as a whole with 20, and an outflow duct inserted in the external body, indicated as a whole with 30. .
The external body 10 illustrated in the example, is essentially cylinder-shaped. It has a surface 11 and a neck 13 on the upper part which insures the sealing of the hole of the container of the liquid, so as to prevent the liquid from flowing out during the phases of the delivering of the liquid.
On the cylindrical surface 11 of the external body 10 there is a series of holes 14, uniformly distributed and placed near the neck 13 of the external body. Said holes, as we will see afterwards, are the entrances of the liquid which is collected in the dosing chamber.
The external body 10 has an opening 15 at. its bottom, on which the dosing element 20 sliding on the internal walls of the body 10 is located. The tubular part 11 of the body 10 is preferably but not necessarily cylindrical, for it is sufficient that the part 11 has the same shape as that of the dosing element for the dosing element to slide in the walls of the body 12 and be guided by them.
The dosing element 20 is essentially a double-diameter cylinder and has a lower part 22 equipped with a bottom 21 and a diameter which is smaller than that of the superior part, which is inserted in such a way as to slide in the internal wall 12 of the body 10.
The two cylindrical parts -22 and 24 are jointed by means of a conic surface 23 which leans on the slanted border of the bottom of the external body 10.
On the conic surface 23 there is a series of holes 25 which work as spillways, so as to insure a constant dosage.
The body 30 is the outflow duct of the dosed liquid; it is essentially cylindrical and has a crown 31, which matches internally the rim of the external body and has a tubular central body 32 which is concentric with said crown. Said body 30 has an open bottom, which is the proper outflow duct. Since the external diameter of the outflow tube 32 is smaller than the internal diameter of the external body 10 in zone 11, an annular zone 40 is formed because of the difference in length betveen the two diameters 11 and 32, said annular space being the proper dosing chamber of the liquid 51, which is in the container 50.
The outflow duct, then, has a seal 33, which is removed when the package is opened and the container is ready to be used. The dosing device operation according to the invention is as follows:
With reference to fig. 3, once the container 50 has been turned upside down, the liquid 51 therein contained passes through the holes 14 into the annular chamber 40. The liquid level rises up to the conic wall 23, but the liquid cannot flow into the outflow duct 30, since the passage is obstructed by the conic surface 23 of the dosing element 20 which leans on the rim 34 of the outflow duct 30.
When the container 50 is reversed again, as can be observed in fig. 4, the liquid contained in the dosing chamber 40 is transferred into the dosing element 20, since said tubular element lowers out of gravity, its conic surface 23 resting on the inclined rim 16 of the external body 10, thereby forming the annular entrance 41 through which the dosed liquid flows. The holes 25 on the conic surface 23, during the transfer of the liquid from the dosing chamber 40 to the inside 26 of the dosing element 20, let a negligible quantity of liquid pass, said quantity of liquid coming back into the container 50. However, as the volume of the dosing chamber 40 is larger than the volume 26 of the dosing element 20, it happens that the liquid transferred from the dosing chamber into the dosing element is always in excess, so that, once the transfer is completed, the liquid in excess overflows from the holes 25, said liquid touching the conic part 23 so that the holes 25 work as spillways which grant a constant level of the pre-dosed liquid. In the subsequent proper delivering phase, which is described in fig. 5, it .can be observed that the liquid contained in the tubular element 20 flows into the outflow duct 30 and then flows out. When the container is in this position, it happens that, both out of gravity and out of the pressure exerted by the liquid 51 on the external walls of the tubular element 20, the conic surface 23 of said tubular element again leans on the rim 34 of the outflow duct, thus closing the annular passage 41 between the dosing chamber 40 and the outflow duct 30. So, the new quantity of liquid 51, which is recalled through the holes 14 into the chamber 40, does not pour out through the outflow duct, but it remains in the dosing chamber 40. This is exactly due to the fact that an hermetic sealing between the tubular element 20 and the outflow duct 30 is insured. This condition is realized as soon as the container 50 is put in a slightly inclined position with respect to the horizontal line. Actually, it is sufficient that the horizontal line is slightly overcome for the hydraulic thrust exerted on the external walls of the dosing element 20 to make said tubular element close the outflow duct, as has been recalled before. The figures 2, 3, 4 and 5 embody a particular form of dosing device in which the proper dosing device indicated with 20 has a conic surface 23 and is guided into the external sliding element' 10.
Actually, the shape of the dosing device 20 with its conic surface 23, which is illustrated in Fig. 3-5 is particularly suited to be used for the dosing of liquids with significant density, since the surface 23 adds up to the bottom surface 21 as regards the thrust that the liquid 51 contained in the container 50 exerts on the dosing device 20. If liquids with a low rate. of viscosity or a significantly high acqueous component are to be dosed, it is not necessary that the bottom surface 21 on which the hydraulic thrust acts is further increased by adding- the conic surface 23, as described in fig. 2. For this reason fig. 6 shows a variant of the dosing device according to the invention, where the external element 10 has at its bottom a open cylindrical part 17 which guides the dosing element 20, said dosing element being essentially composed of a cylindrical part 22 and an upper conic part 26 which interacts with the terminal rim of the dosing element 30. The rim 27 of the surface 26 of the dosing device 20 acts as a overflow level, since the liquid in excess with respect to the capacity of the dosing element 20 overflows from said rim 27 and flows from the holes 28 which, according to this variant, are part of the external body 10 and are located in the connecting surface 19, between the two cylindrical surfaces 11 and 22.
It .is possible for the outflow liquid to overflow from the rim 27 through the holes 28 because the osing element 20 leans on the inclined bottom of the surface 19 by means of protuberances 29, which do not form a continuous border, thus allowing the liquid to flow.
In the case of fig. 7 the body 20 shows four longitudinal grooves 35 which realize the aim of the invention. As for the examples shown in the figures, the dosing device is a lid 60 which is molded together with the external body 10 in order to complete the dosing device itself.
The fig. 7 and 8 show a further variant of the dosing device according to the invention. The dosing device 20, with its conic surface 23, is particularly suited to be used for the dosage of significantly dense liquids. According to the new variant, the dosing device is suited to be used also with low density liquids. More precisely, as can be seen in fig. 7, the dosing device 20 has a circular rim 35 located between the connecting conic surface 23 and the smaller diameter part 22, said circular rim 35 touching the internal surface 34 of the dosing element 30 when the dosing device is in the delivering position. In this case, the rim 35 and the rim 34 of the outflow duct 32, insure the necessary sealing to avoid the outflow of the liquid contained in the chamber 40 through the outflow duct, so as to grant the same preselected dose. Of course, when the container is reversed to the right vertical position, the dosing element 20 slides downwards and the annular passage 41 opens, said passage opening notwithstanding the rim 35.

Claims

1) A dosing device for liquids inserted in the opening of a container (50), characterized in that it comprises: - a tuhular external body (10) having a neck (13) connected by a seal in the opening of a container and having one or more holes (14) in proximity to said neck for the entrance of the liquid to be dosed and an open bottom which contains a sliding dosing element inserted in said external body; - a two-volume sliding tubular cylindrical dosing element (20) inserted in the opening (15) of the bottom of the external body (10) , having a closed bottom (21) , said element being suitable to receive the amount of liquid to be delivered;
- an essentially cylindrical outflow duct (30) having a crown (31) which couples with the interior of the neck of the external body and having a central tube (32) too, whose lower rim (34) is suited to be closed by the surface of the sliding tubular element;
- a pre-dosing chamber (40) of the liquid, located between the internal surface (11) of the external body (10) and the external surface (32) of the outflow duct, where the connecting surface between the two cylindrical parts of the dosing element (20) and the.lower rim (34) of the outflow duct are in such a position as to realize an opening (41) for the passage of the liquid from the pre-dosing chamber (40) to the dosing element (20) only when the dosing device is in an essentially vertical position, said passage keeping closed because of the contact of the dosing element with the rim (34) of the output duct when the device is inclined downwards beyond the horizontal line.
2) A dosing device according to claim 1) , characterized in that the dosing element (20) has a lower cylindrical part (22) equipped with a bottom (21) , and a sliding superior cylindrical part (24) which has a longer diameter than the lower cylindrical part, and inserted in the external wall (12) of the body (10), the two cylindrical parts being jointed by a truncated cone surface (23) , said surface leaning on the inclined rim (16) on the bottom of the external body (10) , when the container (50) is inclined downwards beyond the horizontal line. 3) A dosing device according to claim 2) , characterized in that the conic zone (23) of the dosing element (20) has a series of holes (25) through which the liquid exceeding the predetermined dose flows.
4) A dosing device according to claim 1) , characterized in that the conic part of the dosing element (20) leans on the rim (34) of the dosing element when the container is inclined downwards beyond the horizontal line.
5) A dosing device according to claim 4) , characterized in that the external body (10) has a cylindrical bottom (17) which has a shorter diameter than that of the superior part (11) , where the two parts having different diameters are joined by means of an essentially conic zone (19) presenting a series of holes (28) through which the liquid which overflows from the border (27) of the superior part of the dosing element (20) is discharged. 6) A dosing device according to claim 5) , characterized in that the reversed conic-shaped upper rim (27) of the dosing element (20) has a series of protuberances (29) suited to obtain a passage for the overflowing liquid of the pre-dosed liquid. 7) A dosing device according to claim 3) , characterized in that the dosing element (20) has an annular circular rim (35) located between the connecting conic surface (23) and the smaller diameter (22) , so as to insure the sealing of the internal surface (34) of the dosing element (30) when the dosing device is in the erogating position.
PCT/EP1990/002106 1989-12-21 1990-12-06 Dosing device for liquids WO1991010115A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT08569589A IT1236746B (en) 1989-12-21 1989-12-21 DISPENSER FOR LIQUIDS
IT85695A/89 1989-12-21

Publications (1)

Publication Number Publication Date
WO1991010115A1 true WO1991010115A1 (en) 1991-07-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/002106 WO1991010115A1 (en) 1989-12-21 1990-12-06 Dosing device for liquids

Country Status (3)

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AU (1) AU6880991A (en)
IT (1) IT1236746B (en)
WO (1) WO1991010115A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021942A1 (en) * 1991-05-29 1992-12-10 Taplast Srl Dosing device for liquids
WO1994005978A1 (en) * 1992-09-10 1994-03-17 Taplast Srl Improved measuring/dispensing device for liquid products
DE4238269C1 (en) * 1992-11-12 1994-04-07 Merz & Co Gmbh & Co Liquid dispenser for adjustable small volumes+ - using screw fitting cap with measurement chamber emptied by pressed membrane on cap
US5988434A (en) * 1992-11-12 1999-11-23 Merz & Co. Gmbh & Co. Kg Dosage withdrawal apparatus
US20120097714A1 (en) * 2010-10-21 2012-04-26 Paulus Antonius Augustinus Hoefte Liquid dosing apparatus
US10239671B2 (en) 2012-04-17 2019-03-26 The Procter & Gamble Company Liquid dosing apparatus
US10488241B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus
US10488240B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1687705A (en) * 1928-01-09 1928-10-16 Androff Lambro Dispensing device
DE3133835A1 (en) * 1981-08-27 1983-03-10 Alfred Von 4178 Kevelaer Schuckmann Metering device for liquids which can be fitted onto invertible containers
DE3522807A1 (en) * 1984-06-29 1986-01-09 Gottfried Roder Herstellung von Kunststofferzeugnissen, 2400 Lübeck Tubular metering device for dispensing amounts of liquid of equal volume
DE3715617A1 (en) * 1987-05-11 1988-11-24 Celamerck Gmbh & Co Kg Dispensing closure cap and method for its use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1687705A (en) * 1928-01-09 1928-10-16 Androff Lambro Dispensing device
DE3133835A1 (en) * 1981-08-27 1983-03-10 Alfred Von 4178 Kevelaer Schuckmann Metering device for liquids which can be fitted onto invertible containers
DE3522807A1 (en) * 1984-06-29 1986-01-09 Gottfried Roder Herstellung von Kunststofferzeugnissen, 2400 Lübeck Tubular metering device for dispensing amounts of liquid of equal volume
DE3715617A1 (en) * 1987-05-11 1988-11-24 Celamerck Gmbh & Co Kg Dispensing closure cap and method for its use

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021942A1 (en) * 1991-05-29 1992-12-10 Taplast Srl Dosing device for liquids
WO1994005978A1 (en) * 1992-09-10 1994-03-17 Taplast Srl Improved measuring/dispensing device for liquid products
DE4238269C1 (en) * 1992-11-12 1994-04-07 Merz & Co Gmbh & Co Liquid dispenser for adjustable small volumes+ - using screw fitting cap with measurement chamber emptied by pressed membrane on cap
US5988434A (en) * 1992-11-12 1999-11-23 Merz & Co. Gmbh & Co. Kg Dosage withdrawal apparatus
US20120097714A1 (en) * 2010-10-21 2012-04-26 Paulus Antonius Augustinus Hoefte Liquid dosing apparatus
US10048106B2 (en) * 2010-10-21 2018-08-14 The Procter & Gamble Company Liquid dosing apparatus
US10239671B2 (en) 2012-04-17 2019-03-26 The Procter & Gamble Company Liquid dosing apparatus
US10488241B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus
US10488240B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus

Also Published As

Publication number Publication date
IT8985695A1 (en) 1991-06-21
IT8985695A0 (en) 1989-12-21
AU6880991A (en) 1991-07-24
IT1236746B (en) 1993-03-31

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