US20100193078A1 - Dosage-dispensing element - Google Patents

Dosage-dispensing element Download PDF

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Publication number
US20100193078A1
US20100193078A1 US12/376,380 US37638007A US2010193078A1 US 20100193078 A1 US20100193078 A1 US 20100193078A1 US 37638007 A US37638007 A US 37638007A US 2010193078 A1 US2010193078 A1 US 2010193078A1
Authority
US
United States
Prior art keywords
dosage
dispensing element
slot
containers
inlet opening
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.)
Abandoned
Application number
US12/376,380
Other languages
English (en)
Inventor
Lorenz Bohler
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.)
Mettler Toledo GmbH Germany
Original Assignee
Mettler Toledo AG
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 Mettler Toledo AG filed Critical Mettler Toledo AG
Assigned to METTLER-TOLEDO AG reassignment METTLER-TOLEDO AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOHLER, LORENZ
Publication of US20100193078A1 publication Critical patent/US20100193078A1/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F13/00—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups
    • G01F13/001—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups for fluent solid material
    • 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
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure

Definitions

  • the invention relates to a dosage-dispensing element with the features described in the introductory part of claim 1 .
  • a dosage-dispensing device is described in CH 682994 A5 which resembles a baby pacifier through which pulverous or granular products are released by exerting lateral pressure on the dispensing device to open the outlet.
  • the way in which the out-flowing product quantity is controlled must be considered a drawback, which makes the device unsuitable for use in the dispensing of small and extremely small doses.
  • the second of the aforementioned devices is practically usable only for the delivery of the smallest quantities. This is due to the relatively small outlet opening, where the elastic main body of the device in the squeezed condition furthermore needs to be strongly deformed in relation to the dimensions of the dosage-dispensing device.
  • the quantity of material passing through is still very small in relation to the overall area of the dosage-dispensing device.
  • the formation of so-called material bridges a problem which occurs in the hopper storage of pourable and free-flowing bulk materials, is solved in both devices through the use of agitators which have to be installed for this purpose in the area of or above the outlet opening.
  • the present invention envisions a dosage-dispensing element for free-flowing and pourable bulk materials, which comprises a main body that is deformable, in particular elastic, with a round inlet opening and a slot-shaped outlet opening, wherein the latter can be opened up to a variable width by applying a lateral pressure.
  • the dosage-dispensing element On the opposite side from the inlet opening, the dosage-dispensing element has a largely oval surface area (but the latter can also be circular in an extreme case).
  • This surface area includes a slot-shaped outlet which is oriented in the direction of the longer main axis of the oval surface.
  • the slot-shaped outlet preferably has a length that is greater than the internal diameter of the inlet opening.
  • the resultant aperture of the outlet slot will have a nearly equal surface area as the inlet opening, so that a pourable bulk material, for example a powder or granulate, can flow nearly unimpeded through the passage.
  • a compressive force is applied laterally to the dosage-dispensing element.
  • the best result in opening the outlet is achieved if the compressive force is applied in the area of the circumference points of the longer main axis of the oval surface area. It is envisioned for this compressive force to be applied manually.
  • the dosage-dispensing element according to the invention in a remote-controllable system, wherein the control of the dosage-dispensing element is automated.
  • all kinds of mechanical actuators can be considered, for example fluidic actuators or actuators made of a shape memory alloy.
  • the dosage-dispensing element with the slot-shaped outlet opening permanently spread apart, i.e. in the opened state. It is a sensible solution in this case to apply a compressive force, for example with clamps, in the vicinity of the aforementioned circumference points of the lengthwise axis of the oval surface area. These clamps can be released by means of a suitable fluid actuator or pneumatic actuator if the product flow needs to be interrupted for example in the case of a malfunction or a change-over in production.
  • the admixing or dispensing of the free-flowing or pourable materials from the supply hopper is only called for in certain phases of the production process, as for example in automatic feed dispensers. Accordingly, the slot-shaped outlet is held primarily in the non-compressed state, i.e. in the closed position.
  • the compressive force can be applied through the activation of pressure elements which act at the same points as described for the first operating mode.
  • pressure elements one can use for example pneumatic clamping cylinders or parallel grippers.
  • control elements it is further possible in fully or partially automated systems to achieve a stepwise control of the compressive force that is being applied and thus of the flow-rate of the material that is being dispensed.
  • the preferred measure is to use an active resetting device which is for example spring-biased and reaches into the dosage-dispensing element or is incorporated in it.
  • suitable resetting devices can be installed on or in the dosage-dispensing element, such as for example spiral springs or strips of a shape memory alloy that are incorporated or attached in a vulcanizing process.
  • the circumference wall of the deformable main body can be configured as a pressure-inflatable hose, wherein the resetting of the dilated outlet opening occurs by inflating the hose with compressed air.
  • the dosage-dispensing element is configured as a sleeve coupling which connects two containers to each other.
  • the dosage-dispensing element is preferably shaped as a truncated cone whose diameter widens from the round inlet opening towards the oval area with the slot-shaped outlet opening, resembling a bell. It is especially preferred to connect hoses to each other in this way, as the dosage-dispensing element in this arrangement allows a particularly good control over the flow of material.
  • the circumference wall of the dosage-dispensing element preferably includes seating features such as for example grooves around the circumference which are pushed over the rims of the containers and thus join the containers to the dosage-dispensing element.
  • the connection is made in particular by pushing or pulling the circumference wall of the dosage-dispensing element over the rims of the containers.
  • a suitable hose can also be connected directly to the supply container with which the dosage-dispensing element is to used, whereby a closed system is formed.
  • a more durable connection of containers such as for example reservoir hoppers and/or hoses to the dosage-dispensing element according to the invention can be produced in particular through vulcanizing or adhesive bonding.
  • the dosage-dispensing element in the interior of a hose which is used for example during the process of redistributing products from large containers into smaller containers.
  • This hose, together with the dosage-dispensing element arranged inside it, can be durably connected to the larger container, and its free end can be inserted into the container that is to be filled.
  • the product By applying a compressive force to the dosage-dispensing element and thereby spreading the slot-shaped outlet open, the product can be distributed into the smaller containers.
  • clamping-, stopping- and/or closing means which are arranged on a hose that is pushed over or welded to the dosage-dispensing element according to the invention have the additional advantage that when the hose is closed, substances which may cling to the inside of the hose and/or to the underside of the dosage-dispensing element and then fall off or run off and thereby contaminate the area around the dispensing or filling location are caught and held back in the closed-off hose.
  • the dosage-dispensing element is preferably made of a rubber- or silicone-based material. This allows a cost-effective production of the dosage-dispensing element out of one piece. Using an elastic material has the effect that after taking away the compression that was applied to open and spread the outlet opening, the dosage-dispensing element is returned to its initial condition even without using resetting devices, and the slot-shaped outlet stops the flow of the product being dispensed. As a means to produce especially durable dosage-dispensing elements, it suggests itself in particular to use textile-reinforced materials.
  • FIG. 1 a represents a plan view of a dosage-dispensing element in the non-compressed state
  • FIG. 1 b is a plan-view representation of the dosage-dispensing element of FIG. 1 a with a compressive force being applied;
  • FIG. 2 represents a perspective view of the dosage-dispensing element according to the invention.
  • FIG. 3 illustrates an example of an embodiment where the dosage-dispensing element is configured as a connecting sleeve between two containers that are arranged above one another.
  • FIG. 1 shows a dosage-dispensing element 10 according to the invention in a plan-view drawing.
  • the upper, round inlet opening 11 a middle section of the outlet opening 21 can be seen which is partially covered up by the bell-tapered circumference wall 22 (see FIG. 2 ) of the dosage-dispensing element 10 .
  • the outlet opening 21 is aligned along the larger main axis of the elliptical or oval area 20 .
  • the slot-shaped outlet opening 21 in the embodiment shown in FIG. 1 a is designed as a cut in the oval surface area 20 , so that it divides nearly the entire oval area 20 . The latter remains uncut only in the vicinity of the circumference.
  • FIG. 1 b makes it evident that the compression at the circumference points 12 causes a deformation of the oval surface area 20 of the dosage-dispensing element 10 , so that the latter takes on a round shape also at the underside, similar to the inlet opening 11 .
  • the slot-shaped outlet opening 21 is forced open at the same time as the oval area 20 is deformed into an approximately round area.
  • the slot-shaped outlet 21 is now taking on a nearly oval shape.
  • the area set free by the outlet 21 is approximately equal to the area of the inlet opening 11 .
  • the material to be dispensed can thus pass nearly unhindered through the dosage-dispensing element 10 .
  • the dosage-dispensing element 10 is used for example to dispense pourable building materials that have a tendency to form bridges, such formations are broken up by the fast flow of a large quantity of material or they can't build up from the start.
  • the solution of installing special actuators for braking up the conglomerations, which is customary in conventional dosage-dispensing devices, is therefore in most cases unnecessary.
  • FIG. 2 shows a perspective view of the dosage-dispensing element 10 according to the invention.
  • This illustration shows that the circumference wall 22 of the dosage-dispensing element 10 , which extends from the round inlet opening 11 to the oval area 20 with the slot-shaped outlet 21 has a tapered profile resembling the shape of a bell.
  • the dosage-dispensing element 10 thus has the shape of a truncated cone with an elliptical or oval base.
  • FIG. 3 shows an embodiment where the dosage-dispensing element 10 is used with two containers 31 , 32 .
  • One of the containers in the example of FIG. 3 is a storage hopper 31 for pourable material.
  • the dosage-dispensing element 10 is pushed over the outlet spout 33 and thereby releasably attached to the outlet spout.
  • the second container, a hose 32 extends over the outside of the dosage-dispensing element 10 , so that the oval area 20 (und thus the slot-shaped outlet 21 ) is arranged inside the hose 32 .
  • the hose 32 is held in place by a clamping means 30 , in this example a steel strap, on the outlet spout 33 of the storage hopper 31 .
  • the outlet 21 of the dosage-dispensing element 10 can be spread open to a variable width, and the pourable material can in this way be dispensed.
  • the flow rate of the material can be controlled by decreasing or increasing the compressive force on the circumference points 12 .
  • the entire dispensing process thus occurs inside a closed system, and any contamination of the surrounding space or of the dispensing station is now to the largest extent avoided.
  • the hose 32 in the example of FIG. 3 comprises closure means 34 at the opposite end 35 of the hose in respect to the position of the dosage-dispensing element 10 .
  • the closure means in this example consists of magnetic particle strips, whereby a simple, fast and largely automatic and stable closure of the hose 32 is achieved, providing further protection from escaping contaminating substances which cling to the area around the slot-shaped outlet opening 21 of the dosage-dispensing element 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Food-Manufacturing Devices (AREA)
  • Basic Packing Technique (AREA)
  • Measuring Volume Flow (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
US12/376,380 2006-08-07 2007-07-18 Dosage-dispensing element Abandoned US20100193078A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH12582006 2006-08-07
CH1258/06 2006-08-07
PCT/CH2007/000349 WO2008017173A2 (de) 2006-08-07 2007-07-18 Dosierelement mit einem schlitzförmigen auslass

Publications (1)

Publication Number Publication Date
US20100193078A1 true US20100193078A1 (en) 2010-08-05

Family

ID=38922799

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/376,380 Abandoned US20100193078A1 (en) 2006-08-07 2007-07-18 Dosage-dispensing element

Country Status (5)

Country Link
US (1) US20100193078A1 (zh)
EP (1) EP2049875B1 (zh)
JP (1) JP2010500236A (zh)
CN (1) CN101501460B (zh)
WO (1) WO2008017173A2 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10724884B2 (en) 2016-02-06 2020-07-28 Harro Hoefliger Verpackungsmaschinen Gmbh Pipette
US20220026255A1 (en) * 2019-02-15 2022-01-27 Azo Holding Gmbh Metering unit for free-flowing solids

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199208B1 (de) 2008-12-17 2012-08-01 Mettler-Toledo AG Dosiervorrichtung
US8741281B2 (en) 2010-08-19 2014-06-03 Allergan, Inc. Compositions and soft tissue replacement methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007608A (en) * 1956-07-25 1961-11-07 Jr Herbert F Cox Liquid dispensing containers
US6070767A (en) * 1998-07-17 2000-06-06 Camelbak Products, Inc. Personal hydration system with an improved mouthpiece
US6135167A (en) * 1998-07-14 2000-10-24 Kiholm Industries Llc. Method and apparatus for a filler valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802608A (en) * 1954-10-18 1957-08-13 Joseph A Hull Sealed valve dispensing device
US3099372A (en) * 1960-02-09 1963-07-30 Clarence R Taylor Dispensing device having slitted top portion
US3179301A (en) * 1964-02-17 1965-04-20 Battelle Development Corp Squeeze-type dispensing head
US3342318A (en) * 1965-10-05 1967-09-19 Continental Can Co Tablet dispenser
US5636772A (en) * 1995-06-07 1997-06-10 Poulsen; Thomas E. Fluid container with compression breakable interior seal
DE29907933U1 (de) * 1999-05-04 1999-08-12 Georg Menshen GmbH & Co KG, 57413 Finnentrop Schlitzschließventil für Behälteröffnungen
CN2592545Y (zh) * 2002-12-08 2003-12-17 顾新君 容器罐
JP2005296142A (ja) * 2004-04-07 2005-10-27 Jms Co Ltd 医療用送液ライン

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007608A (en) * 1956-07-25 1961-11-07 Jr Herbert F Cox Liquid dispensing containers
US6135167A (en) * 1998-07-14 2000-10-24 Kiholm Industries Llc. Method and apparatus for a filler valve
US6070767A (en) * 1998-07-17 2000-06-06 Camelbak Products, Inc. Personal hydration system with an improved mouthpiece

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Merriam Webster Online Dictionary, "Elliptical". . 3 November 2011. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10724884B2 (en) 2016-02-06 2020-07-28 Harro Hoefliger Verpackungsmaschinen Gmbh Pipette
US20220026255A1 (en) * 2019-02-15 2022-01-27 Azo Holding Gmbh Metering unit for free-flowing solids
US11940310B2 (en) * 2019-02-15 2024-03-26 Azo Holding Gmbh Metering unit for free-flowing solids

Also Published As

Publication number Publication date
CN101501460B (zh) 2011-03-23
JP2010500236A (ja) 2010-01-07
CN101501460A (zh) 2009-08-05
EP2049875B1 (de) 2020-09-09
WO2008017173B1 (de) 2008-05-22
WO2008017173A3 (de) 2008-03-27
WO2008017173A2 (de) 2008-02-14
EP2049875A2 (de) 2009-04-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: METTLER-TOLEDO AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOHLER, LORENZ;REEL/FRAME:022260/0078

Effective date: 20090212

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION