WO2000020828A1 - Applicateur pour substance coulante - Google Patents

Applicateur pour substance coulante Download PDF

Info

Publication number
WO2000020828A1
WO2000020828A1 PCT/EP1999/007905 EP9907905W WO0020828A1 WO 2000020828 A1 WO2000020828 A1 WO 2000020828A1 EP 9907905 W EP9907905 W EP 9907905W WO 0020828 A1 WO0020828 A1 WO 0020828A1
Authority
WO
WIPO (PCT)
Prior art keywords
applicator
dispensing chamber
dispensing
passage
volume
Prior art date
Application number
PCT/EP1999/007905
Other languages
English (en)
Inventor
Patrick Warren Bailey
Original Assignee
Aventis Cropscience S.A
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 Aventis Cropscience S.A filed Critical Aventis Cropscience S.A
Priority to AU64738/99A priority Critical patent/AU6473899A/en
Publication of WO2000020828A1 publication Critical patent/WO2000020828A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1413—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device
    • B05B7/1427—Apparatus to be carried on the back of the user
    • 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
    • G01F11/261—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 fluent solid material
    • 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
    • G01F11/268—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 with provision for varying the volume to be delivered

Definitions

  • the present invention relates to an applicator for dispensing flowable material from a container.
  • the invention relates to an applicator and a method of dispensing a predetermined quantity of flowable material from a container.
  • GB-A-2322061 describes a backpack applicator which is to be worn on the back of an operator.
  • the backpack applicator includes a container for holding a supply of flowable material and a flexible hose for feeding the material to a dispenser outlet.
  • the dispenser outlet includes a lever containing a small chamber which is movable between two positions. In one position, the chamber is aligned with a supply pipe for receiving flowable material and, in another position, it is aligned with an outlet for dispensing the material.
  • the applicator should be adjustable but not complex in design.
  • an applicator for dispensing a predetermined quantity of a flowable material comprising : a dispensing chamber having a volume defining the predetermined quantity, the dispensing chamber having an inlet opening for receiving the material and an outlet opening for dispensing the material, wherein: the inlet and outlet openings are arranged in the dispensing chamber such that with the applicator in one orientation, the material may freely flow through the inlet opening so as to fill the volume of the dispensing chamber without flowing out of the outlet opening and, with the applicator in another orientation, the material held in the volume of the dispensing chamber may be freely dispensed from the outlet opening without material flowing into the dispensing chamber through the inlet opening.
  • a method of dispensing a predetermined quantity of flowable material using the above applicator comprising : orientating the applicator such that flowable material flows into and fills the volume of the dispensing chamber; and orientating the applicator such that flowable material in the volume of the dispensing chamber flows out of the outlet opening.
  • a reliable applicator may be provided at reduced cost, the applicator also being simple to use, i.e. merely requiring alternation of its orientation.
  • the applicator is particularly advantageous when used with pellets, for instance of ant bait, since it does not break the bait pellets.
  • Previous applicators with moving parts, for example rotary metering, slides etc, tend to grind the bait to varying degrees. Such bait, once ground in this way is of decreased attraction to the pest in the case of, for instance, ants.
  • the apparatus is suitable for any granular product, such as an insecticide or bait, which requires accurate measurement and placement without risk of operator contact .
  • the dispensing chamber comprises at least part of an elongate passage. This makes the chamber easy to construct and, also, more versatile.
  • the volume of the dispensing chamber is preferably adjustable and, when the dispensing chamber comprises at least part of an elongate passage, an end face of the passage may be movable so as to vary the volume of the dispensing chamber. In this way, a user may selectively vary the amount of flowable material to be dispensed at any one time.
  • the end face of the passage comprises an end face of a plunger which is movably mounted in the passage.
  • the volume of the dispensing chamber may be conveniently varied.
  • the applicator comprises a feed passage connected to the inlet opening, the inlet and outlet openings being located adjacent one another at a peripheral portion of the dispensing chamber facing the volume of the dispensing chamber and the inlet passage extending generally directly away from the volume of the dispensing chamber.
  • both of the openings will face down into the volume, such that material will flow into the volume through the inlet, but not out through the outlet.
  • material in the dispensing chamber can flow out of the outlet opening.
  • the feed passage connected to the inlet opening will still contain material, such that the material in the dispensing chamber will flow out of the outlet, rather than back out of the inlet.
  • the inlet opening and feed passage are positioned and orientated such that this effect is maximised.
  • the feed passage comprises a joint for connection to a supply of material, the joint allowing rotation of at least 180°, thereby allowing rotation of the applicator between said one and said another orientation.
  • This facilitates use of the applicator and reduces wear on the supply pipes, by avoiding the need for them to twist. Additionally, this also enables a rigid arrangement of supply pipes to be used.
  • a dispensing passage is connected to the outlet opening and extends away from the volume of the dispensing chamber with the angle between the feed and dispensing passages being less than 90° at at least the peripheral portion of the dispensing chamber.
  • flow of material into the volume from the feed passage is in substantially the opposite direction to flow of material from the volume through the dispensing passage. This facilitates correct operation of the applicator when rotating it between its two orientations.
  • the dispensing chamber and dispensing passage are formed from a single elongate passage and the feed passage branches from the single elongate passage at the division between the dispensing chamber and the dispensing passage.
  • the applicator may be constructed in a simple manner.
  • the applicator further comprises an extension to a wall of the feed passage adjacent the outlet opening so as to restrict flow of material from the feed passage to the outlet opening.
  • the feed passage is effectively extended into the elongate passage.
  • This can be used to reduce the size of the outlet opening relative to the cross-sectional area of the dispensing chamber volume.
  • it can be used to reduce any flow of material from the inlet opening as the applicator is moved to its dispensing orientation.
  • the flowable material comprises powder or granules. Such materials flow under the influence of gravity, but do exhibit some resistance to flow.
  • this has the advantage that when one level of the material in the applicator is higher than another, the material will not necessarily flow. For instance, when the applicator is turned to its dispensing orientation, material will not flow back up the feed passage, nor, indeed, will material continue to flow up out of the feed passage due to any pressure from material in a feeding material container.
  • the applicator may be incorporated into any form of dispensing device, such as a backpack applicator including a container for holding a supply of the flowable material.
  • Figure 1 illustrates a portable backpack applicator incorporating an embodiment of the present invention
  • Figures 2 (a) and (b) illustrate a cross-section of an embodiment of the present invention in its two orientations; and Figures 3(a) and (b) illustrate an embodiment of the present invention in its two orientations.
  • a portable backpack applicator 2 is illustrated. This comprises a frame 4 for supporting a container 6.
  • the container 6 houses a flowable material, such as a powder or granules, and is connected to a supply pipe 8.
  • the supply pipe 8 in turn connects to an applicator embodying the present invention.
  • the dispensing chamber 14 is formed integrally with a dispensing passage 16 as part of a single elongate passage 18.
  • the end face 20 of the dispensing chamber 14 is defined by the end face of an adjustable plunger 22. It will be seen, therefore, that the volume of the dispensing chamber 14 in the illustrated embodiment is defined by the distance between the inlet opening of the dispensing chamber 14, namely where the feed passage 12 joins the dispensing chamber 14, and the end face 20 of the plunger 22.
  • orientating the applicator 10 as illustrated in Figure 1 (a) will result in the material M flowing into and filling the dispensing chamber 14. If, however, the illustrated applicator is then rotated through 180°, as illustrated in Figure 2 (b) , then the material will flow out through the dispensing passage 16 and will be dispensed.
  • the plunger is adjustably positioned within the elongate passage 18.
  • the plunger may be selectively moved between various positions along the axis of the elongate passage 18. In this way, the defined volume of the dispensing chamber 14 may be varied, such that the predetermined quantity of material to be dispensed may also be varied.
  • the plunger may be freely movable, but gripped by a gripping mechanism.
  • the plunger itself may be threaded, such that it can be turned in and out of the elongate passage 18.
  • a lock nut 28 is provided with a seal 30 to hold and seal the plunger.
  • the plunger may be provided with markings along its length enabling the user to set the position of the plunger 22 according to the required amount of material to be dispensed.
  • applicators By providing applicators with elongate passages 18 of different cross-sectional areas, it is easy to provide a wide variety of adjustable applicators.
  • the inlet and outlet openings of the dispensing chamber 14 are arranged such that material is fed to the dispensing chamber 14 in the first orientation and flows out of the dispensing chamber 14 in the second orientation. This can be achieved with positional arrangements which differ from that illustrated in the figures.
  • the illustrated embodiment of Figures 2(a) and (b) includes an additional feature to assist in preventing flow of material from the feed passage 12 in the second orientation .
  • an internal extension 32 is provided to the feed passage 12.
  • the extension 32 enables the feed passage 12 to extend into the elongate passage 18, such that the outlet opening 26 of the dispensing chamber 14 is reduced in size. This also provides a more closely defined volume in the dispensing chamber 14.
  • a joint 34 may be provided between the supply pipe 8 and the feed passage 12. This joint 34 preferably allows relative rotation between the feed passage 12 and the supply pipe 8. This facilitates rotation of the actuator 10 between its two orientations and also prevents undue wear on the supply pipe 8. Indeed, by using such a joint, it would also be possible to provide a rigid supply pipe 8. In this way, correct functioning of the applicator would not rely on the user correctly orientating the applicator, since this would be set by the position and orientation of the supply pipe 8.
  • the feed passage 12 of the illustrated embodiment has a bend 36 along its length.
  • this bend is to change the orientation of the applicator as the feed passage 12 rotates about its upstream axis.
  • the bend in itself, is not essential to the invention and that any arrangement which allows the orientation to be changed appropriately is sufficient.
  • the feed pipe 12 could be straight, but provided with a joint 34 which rotates at an angle to the axis of the supply passage 12.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un applicateur (10) destiné à distribuer une quantité prédéterminée d'une substance coulante, ledit applicateur (10) comprenant une chambre de distribution (14) qui possède un volume définissant la quantité prédéterminée, la chambre de distribution (14) comportant un orifice d'entrée (12) destiné à recevoir la substance et un orifice de sortie (10) destiné à distribuer la substance, les orifices de sortie et d'entrée étant aménagés dans la chambre de distribution (14) de la manière suivante: lorsque l'applicateur est orienté dans un premier sens, la substance peut s'écouler librement à travers l'orifice d'entrée pour remplir le volume de la chambre de distribution, et ce sans s'écouler à travers l'orifice de sortie. Lorsque l'applicateur est orienté dans un autre sens, la substance qui remplit le volume de la chambre de distribution peut être librement distribué depuis l'orifice de sortie, et ce sans que ladite substance pénètre à l'intérieur de la chambre de distribution à travers l'orifice d'entrée.
PCT/EP1999/007905 1998-10-02 1999-09-30 Applicateur pour substance coulante WO2000020828A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU64738/99A AU6473899A (en) 1998-10-02 1999-09-30 Applicator for flowable material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9821551.0 1998-10-02
GB9821551A GB2342087A (en) 1998-10-02 1998-10-02 Applicator for flowable material

Publications (1)

Publication Number Publication Date
WO2000020828A1 true WO2000020828A1 (fr) 2000-04-13

Family

ID=10839928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/007905 WO2000020828A1 (fr) 1998-10-02 1999-09-30 Applicateur pour substance coulante

Country Status (4)

Country Link
AU (1) AU6473899A (fr)
GB (1) GB2342087A (fr)
GT (1) GT199900168A (fr)
WO (1) WO2000020828A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461400A (en) * 1981-08-31 1984-07-24 Fmc Corporation Valveless metering dispenser
WO1999002946A1 (fr) * 1997-07-05 1999-01-21 Bayer Aktiengesellschaft Dispositif pour distribuer de façon dosee et discontinue de granules a partir d'un reservoir de stockage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB210981A (en) * 1923-02-05 1924-02-14 Isaac Edward Stinson Improvements in and relating to sugar containers
GB1116182A (en) * 1965-03-09 1968-06-06 Fisons Pest Control Ltd Apparatus for the intermittent discharge of metered quantities of granular material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461400A (en) * 1981-08-31 1984-07-24 Fmc Corporation Valveless metering dispenser
WO1999002946A1 (fr) * 1997-07-05 1999-01-21 Bayer Aktiengesellschaft Dispositif pour distribuer de façon dosee et discontinue de granules a partir d'un reservoir de stockage

Also Published As

Publication number Publication date
GB9821551D0 (en) 1998-11-25
GB2342087A (en) 2000-04-05
AU6473899A (en) 2000-04-26
GT199900168A (es) 2001-03-23

Similar Documents

Publication Publication Date Title
US5301848A (en) Electromagnetic meter for closed dispensing container
EP0498474B1 (fr) Elément agricole
US8235310B2 (en) Spraying device with interchangeable cartridge
US7090098B2 (en) Metering and dispensing closure
MX2010006140A (es) Sistema de dosificacion volumetrico con apagado seccional.
US20100108721A1 (en) Dispensing device for liquids
JPH02253871A (ja) 植物保護性組成物を施用するための装置
US5183147A (en) Chemical handling system
CA1267043A (fr) Dispositif applicateur
WO2000020828A1 (fr) Applicateur pour substance coulante
US2993626A (en) Liquid dispenser for seed planters
US20210252528A1 (en) Automated dry granular material dispenser
US3779428A (en) Seed control gate for planters
JP6072923B2 (ja) 顆粒状粒子を施用するためのポータブルシステム
US6481596B1 (en) Metering device
US5944231A (en) Fertilizer or like dry material dispensing assembly and dispensing gun therefor
EP0292927A1 (fr) Distributeurs
US4545513A (en) Metering device
EP0770549B1 (fr) Buse de dosage et procédé pour doser des liquides
US5655690A (en) Apparatus for dispensing product through a vertical dispenser tube
JPH0214330Y2 (fr)
US3782606A (en) Ant poison distributing apparatus
WO2019088823A1 (fr) Appareil de distribution
KR100378940B1 (ko) 압력유체 정량공급 및 공급조절장치
JPH0837854A (ja) 施肥装置

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref country code: AU

Ref document number: 1999 64738

Kind code of ref document: A

Format of ref document f/p: F

AK Designated states

Kind code of ref document: A1

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

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase