EP0241489A1 - Dispositif de dosage liquide - Google Patents

Dispositif de dosage liquide

Info

Publication number
EP0241489A1
EP0241489A1 EP86905692A EP86905692A EP0241489A1 EP 0241489 A1 EP0241489 A1 EP 0241489A1 EP 86905692 A EP86905692 A EP 86905692A EP 86905692 A EP86905692 A EP 86905692A EP 0241489 A1 EP0241489 A1 EP 0241489A1
Authority
EP
European Patent Office
Prior art keywords
operator
metering device
cam member
lever
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.)
Pending
Application number
EP86905692A
Other languages
German (de)
English (en)
Inventor
Graeme William Harris
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 EP0241489A1 publication Critical patent/EP0241489A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D7/00—Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • 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
    • G01F11/08—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 diaphragm or bellows type
    • G01F11/088—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 diaphragm or bellows type using a deformable conduit-like element

Definitions

  • THIS INVENTION relates to a metering means and particularly a metering means intended for the metering of active ingredients such as pharmaceuticals, veterinary substances, pesticides, weedicides and like compositions.
  • a metering device comprising a body supporting and enclosing a bladder said bladder having an inlet and an outlet each controlled by a non-return valve, said body being formed with an opening and supporting an operator which is movable relative to said body whereby on movement of the operator with respect to the body a portion of the operator moves into or out of the body through the opening to engage and vary the volume within the bladder, said operator being associated with a movable cam member having a camming surface which is engagable with the operator to control its degree of entry into the body said camming surface to vary the degree of movement of the operator relative to the body on movement of the cam member.
  • Figure 1 is a schematic sectional elevation of the first embodiment in the "maximum dose” situation
  • Figure 2 is a schematic sectional elevation of the embodiment in the "minimum dose" situation
  • Figure 3 is an end elevation of the embodiment
  • Figure 4 shows an alternative mounting for the cam member
  • Figure 5 is a part elevation of a second embodiment; and Figure 6 is a part sectional elevation of a third embodimen .
  • the first embodiment is directed towards a metering device for use in assocation with a drenching gun and comprises a substantially tubular body 11 which is closed at either end by end caps 12.
  • the tubular body 11 accommodates within itself a tubular flexible bladder 13 which is closed at either end by end plugs 14 and 15 which clampingly engage the respective ends of the bladder against the adjacent ends of the tubular body 13.
  • Each of the end plugs 14 and 15 are formed with an axial passageway 16 and 17 respectively.
  • One end plug 14 is also received and supported by one of the end caps 12 to extend beyond the end cap and supports an outlet nozzle 18 which may be adapted at its outer end to accommodate an extension member and which supports within itself a non ⁇ return valve 19 to ensure that there can only be a flow of fluid from within the bladder 13 out through the outlet nozzle 18.
  • the axial passageway 17 in the other end plug 15 is formed by a tubular member 20 which extends through the end plug 15 and protrudes beyond the end cap 12.
  • the outermost end of the tubular member 20 is adapted for connection to a fluid line for the active agent to be metered by the metering device.
  • the inner face of the end plug 15 supports a non-return valve 21 which is associated with the tubular member 20 to ensure that there is only a flow of fluid from the tubular member 17 to the bladder 13. '
  • the body 13 is formed with an opening 22 which extends axially along almost the full length of the body and is associated with an operator in the form of a lever 23 which is pivotally mounted to the body to be pivotable about a pivot axis 28 towards and away from the body over said opening 22.
  • the lever 23 is associated with an extension piece 24 the length and width of which corresponds substantially with the length and width of the opening 22. On pivotal movement of the lever 23 towards the body 13, the extension piece 24 enters the opening 22 in the body to engage the bladder and cause the collapse thereof.
  • the lever 23 is associated with an annular cam member 25 supported at the inlet end of the body 13 to be rotatable over the respective end cap 12b and tubular member 20.
  • the cam member 25 is associated with a locking nut 26 which is threadably engaged over the tubular member 20 to provide for clamping engagement of the cam member 25 between the locking nut 26 and end cap 12.
  • the cam member has an annular configuration and is formed at its outer edge with an axially directed flange 27 extending the full circumference of the cam member 25.
  • the flange 27 is of variable thickness.
  • the lever 23 is formed with an extension 29 which extends to the rear of the pivot axis 28 and is engagable with the outer surface of the flange 27 of the cam member 25.
  • the flange 27 is formed with a radial protrusion 30 adjacent the portion of the flange having greatest thickness which provides a thumb or finger grip 31 to facilitate rotation of the cam member 25.
  • the bladder 13 is formed of a resilient material and has a normal configuration conforming substantially to that of the internal configuration of the tubular body 11.
  • the lever 23 is biassed to its outer most position in relation to the opening to a degree which is controlled by the engagement of the rearward extension 29 of the lever 23 with the flange 27 of the cam member 25.
  • the potential degree of entry the extension piece 24 of the handle 23 into the body 13 will vary.
  • the available degree of movement of the lever 23 towards the body 13 is also variable and consequently the degree of volume displacement effected on the bladder by such movement is variable.
  • the cam member 25 is calibrated according to the degree of volume displacement effected by movement of the lever 23 towards the body 13 for each position of the cam member around the end of the body 13.
  • Figure 1 illustrates a "maximum dose” arrangement whereby the thickness of the portion of the flange 27 engaged by the rearward extension 29 of the lever 23 is at its minimum and as a result the degree of movement available to the lever with respect to the handle 13 is at its maximum. Consequently the volume displacement effected on the bladder by such movement is also at its maximum.
  • the metering device is at its "miminum dose” situation as shown at figure 2 whereby the portion of the flange 27 of the cam member 25 engaged by the rearward extension 29 of the lever 23 has its greatest thickness, the available degree of movement of the handle 23 towards the body 13 is at its minimum. Consequently the resultant volume displacement which may be effected by such movement is also at its minimum.
  • the function of the locking nut 26 serves to ensure that the camming surface is maintained at a desired dosage position for the desired period. In event that it is required to vary the dosage the locking nut is adjusted to remove the clamping engagement with the cam member 25 and allow rotation of the cam member 25 to the desired dosage position.
  • cam member 25 of the first embodiment is shown at Figure 4.
  • the cam member 25 is formed as eccentric annulus which is slidably received in a circumferential groove in the end cap 12 to be capable of rotation about the central axis of the end cap 12 and tubular body (not shown).
  • the outer surface of the annular is eccentric to provide a camming surface of similar form to that of the first embodiment.
  • a second embodiment of the invention varies from the first embodiment in the nature of the inter-engagement between the lever 23 and the cam member 25 as shown at Figure 5.
  • the cam member 25 . of the second embodiment comprises an annular element having a conical outer surface and a threaded inner bore.
  • the cam member is threadably engaged on a threaded formation 32 provided on the exterior of the end cap 12 which is itself threadably engaged with the end of the tubular body 11.
  • the conical outer surface of the cam member 25 is located adjacent the rearward extension 29 of the lever 23.
  • On rotation of the cam member 25 on the tubular body 11 and end cap 12 the cam member is displaced axially along the tubular body to vary the degree .of movement which is available for the lever 23.
  • the axial position of the cam member on the tubular body may be calibrated according to the displacement volume effected by the lever at various positions of the cam member.
  • the third embodiment as shown at Figure 6 also varies from the first embodiment in the nature of the inter-engagement between the lever 23 and the cam member 25.
  • the cam member 25 is provided by the exterior surface of the end cap 12 which has a frusto-conical configuration.
  • the rearward extension 27 of the lever 23 slidably supports a threaded stud 33 the outer end of which is adapted to bear on the cam member 25.
  • the rear extension also rotatably supports an annular nut 34 which threadably engages the stud 33 whereby rotation of the nut 34 in the rearward extension will vary the axial displacement of the stud from the end of the rearward extension. Calibrations may be provided on the stud to indicate the available volume displacement for a variety of positions of the stud 33 within the rearward extension 27.
  • a metering device which may be readily calibrated and provide readily recognisable indication of the dosage effected by operation of the device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Massaging Devices (AREA)

Abstract

Un dispositif de dosage comprend une structure (11) soutenant et enfermant une chambre (13), celle-ci étant munie d'une entrée et d'une sortie commandée chacune par une soupape de retenue (19 et 21). Ladite structure (11) présente une ouverture (22) et soutient un opérateur (23) pouvant être déplacé par rapport à la structure (11), une partie (24) dudit opérateur pouvant entrer et sortir de la structure (11) à travers ladite ouverture (22) et pouvant s'engager dans le volume de la chambre (13) afin de le modifier. Ledit opérateur est associé à un élément à came (25) qui peut être engagé par l'opérateur (23), afin de limiter la course de retour dudit opérateur, ledit élément à came étant réglable afin de modifier la course dudit opérateur. Ledit dispositif peut notamment s'appliquer à des pistolets ou autres appareils destinés à administrer des substances liquides à une bête.
EP86905692A 1985-10-11 1986-10-09 Dispositif de dosage liquide Pending EP0241489A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH287885 1985-10-11
AU2878/85 1985-10-11

Publications (1)

Publication Number Publication Date
EP0241489A1 true EP0241489A1 (fr) 1987-10-21

Family

ID=3771321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86905692A Pending EP0241489A1 (fr) 1985-10-11 1986-10-09 Dispositif de dosage liquide

Country Status (4)

Country Link
EP (1) EP0241489A1 (fr)
AU (1) AU591197B2 (fr)
NZ (1) NZ217881A (fr)
WO (1) WO1987002422A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU215373B (hu) * 1991-11-08 1998-12-28 Novapharm Research (Australia) Pty Ltd. Szivattyú főleg folyóképes anyagok nyomás alatti adagolására, valamint ilyen szivattyúval ellátott adagolórendszer
US6251098B1 (en) * 1992-01-24 2001-06-26 I-Flow, Corp. Fluid container for use with platen pump
NL1018640C2 (nl) * 2001-07-26 2003-01-28 Itsac Nv In de hand te houden afgifte-inrichting voor het afgeven van een substantie.
BRPI0308307B8 (pt) * 2002-03-08 2021-06-22 Applied Diabetes Res Inc sistema de infusão para distribuição de um fluído de uma fonte remota para o corpo de um paciente
CN102452095B (zh) 2010-10-28 2014-10-29 吉列公司 用于分配液体的毛发移除装置的施用装置
CN102452094A (zh) 2010-10-28 2012-05-16 吉列公司 分配液体的毛发移除套件
CN102452091B (zh) 2010-10-28 2015-08-12 吉列公司 用于毛发移除装置的具有导流板的施用装置
CN102452085B (zh) 2010-10-28 2016-01-27 吉列公司 用于分配液体的毛发移除装置的泵
CN102452088B (zh) 2010-10-28 2015-07-01 吉列公司 具有刀片架保持覆盖件的毛发移除装置
CN102452092B (zh) 2010-10-28 2015-04-01 吉列公司 分配液体的毛发移除装置
SE536371C2 (sv) 2011-12-09 2013-09-17 Asept Int Ab Portioneringsanordning
US9156175B2 (en) 2011-12-09 2015-10-13 The Gillette Company Fluid applicator for a personal-care appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101057A (en) * 1976-12-02 1978-07-18 Ethyl Corporation Trigger actuated pump
US4182465A (en) * 1978-06-12 1980-01-08 Bennett Robert A Manually operated pump using hollow flexible member as pumping chamber
US4222501A (en) * 1978-07-24 1980-09-16 James D. Pauls And J. Claybrook Lewis And Associates, Limited Dual chamber, continuous action dispenser

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8702422A1 *

Also Published As

Publication number Publication date
AU591197B2 (en) 1989-11-30
WO1987002422A1 (fr) 1987-04-23
NZ217881A (en) 1988-06-30
AU6527786A (en) 1987-05-05

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