CN1246812A - Dispensing apparatus - Google Patents
Dispensing apparatus Download PDFInfo
- Publication number
- CN1246812A CN1246812A CN98802393.8A CN98802393A CN1246812A CN 1246812 A CN1246812 A CN 1246812A CN 98802393 A CN98802393 A CN 98802393A CN 1246812 A CN1246812 A CN 1246812A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump assembly
- assembly
- pump chamber
- discharge side
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0064—Lift valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0072—A valve member forming part of an outlet opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1005—Piston pumps with means for adjusting or modifying pump stroke
- B05B11/1007—Piston pumps with means for adjusting or modifying pump stroke by adjusting or modifying the pump end-of-sucking-stroke position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure stroke
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1066—Pump inlet valves
- B05B11/1067—Pump inlet valves actuated by pressure
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
There is provided a dispensing apparatus in the form of a pump assembly for dispensing fluids, particularly viscous, pasty fluids in predetermined measured amounts. The assembly includes a discharge spout (40), a housing (21) and a button (20) for varying the volume of the pump chamber to dispense fluid. An inlet valve assembly (30) controls ingress of fluid to the pump chamber so that the pump chamber is full when the button is in a rest position. The maximum volume of the pump chamber may be pre-set to set the dose of fluid dispensed by the device. The discharge spout (40) is arranged to dispense fluid unilaterally of the pump dispenser through an outlet valve (50).
Description
The present invention relates to the distributing equipment of pump kit form.
With predetermined metered amount distributing fluids, and the pump assembly that metered amount can change is known.For the discharge side of this assembly is provided with sealing arrangement, this also is known.The problem of present this assembly is: set valve gear is unsuitable for distributing paste viscous fluid such as some medicament, and the obstruction of member often takes place, and the pump assembly can not be worked.Another problem of present this assembly is: they are unsuitable for directly fluid being sent in the mouth, and this is to be to be avoided splashing and wasting needed of medicament during to children taking thickness medicament.Also have a problem to be, need accurately to distribute the volume and the effective constituent of paste viscous fluid.
According to the present invention, a kind of pump assembly is provided, it comprises:
A discharge side;
A pump chamber;
A pump case;
Be used to change the device of pump chamber;
Springing, it is used for pump chamber is biased into position corresponding to the pump chamber maximum volume;
, a fluid passage, it is used for a position in the pump chamber is delivered in the position of fluid outside pump chamber;
The inlet valve device, it is used to seal described fluid passage;
Be used for the pump assembly is installed in device on the container;
Discharge valve system, it is used for seal drain port, is provided with adjacent to the end of discharge side away from pump chamber, and wherein, the fluid that distributes by discharge valve system points to side direction, and this valve gear is applicable to the paste viscous fluid.
The advantage of such assembly is reliably to distribute the paste viscous fluid expediently.In addition, can safety, wholesomely realize fluid is directly sent in the disease population.
This pump assembly preferably includes:
A discharge side;
A pump chamber;
A pump case;
Be used to change the device of pump chamber;
Springing, it is used for pump chamber is biased into position corresponding to the pump chamber maximum volume;
, a fluid passage, it is used for a position in the pump chamber is delivered in the position of fluid outside pump chamber;
The inlet valve device, it is used to seal described fluid passage;
Be used for the pump assembly is installed in device on the container;
Wherein:
The device that is used to change pump chamber comprises:
An actuation button assembly;
Stop motion mechanism, it is used to limit the vertical stroke of actuation button assembly;
Described stop motion mechanism comprises:
Be used to preestablish the device of administered; And the calibrating installation that is used for the accuracy control administered.
For example preestablish administered the reliable approach that guarantees to use correct dose is provided by the dispenser.This is a particularly suitable for the prescription medicament, and administered generally is a unmodified in this case.Calibrating installation can guarantee to provide correct effective dose to patient.This point is very important, can overcome orthodox method as be difficult to accurately estimate the problem of dosage with bottle and soupspoon.
The device that preestablishes administered preferably includes a projection, and this projection can be selected to be in one of many guide grooves.
In a device, use many guide grooves, the pump assembly can be used in the scope of multiple dosage.Like this, the dispenser can reduce the number of the different pump assemblies that must lay in.
Above-mentioned projection preferably includes an inclined-plane on its lower surface, thereby projection can be crossed under the part of pump chamber housing, thereby makes projection move to one of guide groove from a groove.
Above-mentioned inclined-plane makes projection move to one of guide groove from horizontal slot.The inclined-plane is not established at any other edge in projection, thereby can prevent that projection from shifting out initial selected guide groove.Its advantage is: dosage just can not be had a mind to or change by mistake easily once setting.
Above-mentioned guide groove preferably includes in every guide groove enlarged topmost, and it is used for admitting above-mentioned projection when around the rotary-actuated button component of pump chamber vertical axis.
The position that above-mentioned enlarged can provide a projection to move into is so that " locking " pump assembly prevents the upper and lower mobile of actuation button assembly.A kind of means that guarantee the child-resistant of component safety so just are provided.This point is particularly useful when medicament has genotoxic potential.The structure of enlarged and guide groove means that the measure of this child-resistant is not to adopt.This is favourable for the adult or for the old man who is difficult to maybe can not to handle the child-resistant device.
The inlet valve device preferably includes the Forced Valve device of all salable pump assembly in any direction.
Assembly can be used on inversion or obliquity, thus the patient who makes assembly can be used for lying on a bed.
Discharge valve system preferably includes a tip seals that forms on the discharge side end.
Blowoff valve is arranged on the end of discharge side, and this makes its easy to clean and inspection.In addition, blowoff valve is arranged on the discharge side end, and this can prevent air admission discharge side when assembly is between the operation.This helps to prevent the pollution of any resistates in discharge side.
The surface of tip seals preferably flushes with the discharge side outside face.
A smooth surface of putting into disease population can be provided like this, and the danger that prevents to hurt oral area.
Be discharged to the preferably basic and discharge side axis normal of the fluid that distributes.
Perpendicular to discharge side axis distributing fluids, this helps preventing that the fluid that distributes from contacting the back side of user's throat with very big speed or power.The danger that this fluid dangerous or that reduce to be assigned with that can reduce to damage throat is choked.
A seal ring is preferably disposed between pump case and the actuation button assembly, so that improve sealing.
The sealing ring is used to improve leak free character between actuation button assembly and the pump case.This can prevent that fluid is from the undesirable leakage of pump chamber via pump case and actuation button assembly interface.
Now contrast the following drawings and only describe specific embodiments of the invention with way of example.
Fig. 1 is the block diagram of the pump dispenser of first embodiment of the invention, and it is assemblied on the container among the figure.
Fig. 2 is another block diagram of device shown in Figure 1.
Fig. 3 is the exterior view of a first embodiment of the invention part.
Fig. 4 is the cutaway view of first embodiment of the invention.
Fig. 5 is the block diagram of inlet valve of the present invention.
Fig. 6 A is the cutaway view that is in the inlet valve of the present invention of closure state.
Fig. 6 B is the cutaway view that is in the inlet valve of the present invention of open mode.
Fig. 7 is the block diagram of alternative inlet valve of the present invention.
Fig. 8 A is the cutaway view that is in the alternative inlet valve of the present invention of closure state.
Fig. 8 B is the cutaway view that is in the alternative inlet valve of the present invention of open mode.
Fig. 9 A is the cutaway view of another alternative inlet valve that is in the pump dispenser of the present invention of closure state.
Fig. 9 B is the cutaway view of another alternative inlet valve that is in the pump dispenser of the present invention of open mode.
Figure 10 A is the cutaway view of another alternative inlet valve that is in the pump dispenser of the present invention of closure state.
Figure 10 B is the cutaway view of another alternative inlet valve that is in the pump dispenser of the present invention of open mode.
Figure 10 C is the block diagram of plug sealing member of another alternative inlet valve of pump dispenser of the present invention.
Figure 11 is the block diagram of a discharge side part of the present invention.
Figure 12 is the block diagram of escape cock of the present invention.
Figure 13 A is the cutaway view that is in the alternative escape cock of the present invention of closure state.
Figure 13 B is the cutaway view that is in the alternative escape cock of the present invention of open mode.
Figure 13 C is the cutaway view along the A-A section of Figure 13 A.
Figure 14 A is the cutaway view that is in the alternative escape cock of the present invention of closure state.
Figure 14 B is the cutaway view that is in the alternative escape cock of the present invention of closure state.
Figure 14 C is the cutaway view that is in the alternative escape cock of the present invention of closure state.
Figure 15 is the block diagram of the pump dispenser of second embodiment of the invention, and it is assemblied on the container among the figure.
Figure 16 is the exterior view of a part of the pump dispenser of second embodiment of the invention.
Figure 17 is the block diagram of second embodiment of the invention.
Figure 18 is the cutaway view of the pump assembly of second embodiment of the invention.
The pump dispenser of first embodiment of the invention is described now.Fig. 4 represents a pump assembly, and it comprises a pump case 11, and this pump case is connected in a container 1 (as shown in Figure 2) by sun/female connection portion 14.
When distributing box is in orientation shown in Fig. 1 to 4, pump case 11 comprise one above container 1 the basic cylindrical circular substantially part 41 that vertically is provided with and edge be basically perpendicular to the discharge side 40 that cylindrical shape part 41 and container 1 are provided with.Discharge side 40 preferably slightly upwards is an angle setting from horizontal direction, as shown in Figure 4, so that insert oral area.Discharge side 40 can be provided with cost-cutting perpendicular to the cylindrical shape part 41 of pump case 11, simplifies and makes, and this is favourable.As the device of grasping pump assembly 10, the ring set 12 of a projection forms on the outside face of pump case 11.Ring set 12 has a plurality of narrow ribs 18, as shown in Figure 3, so that pump case 11 is installed on the container 1, also is convenient in use dispose.Ring set 12 is arranged on the bottom of the pump case 11 of the most close container 1.Perhaps, ring set also can be arranged on other position of pump case, and for example on the top of pump case 11, so that can this equipment of one-hand control, a thumb and a finger hold ring set 12, operate with another finger of the same hand.
The device that holds equipment is not limited to the form of ring set 12, also can be two forms that are connected in the outward extending flange of pump case 11, and flange can cosily hold user's finger, and help pump case 11 on container fixing with unclamp.In addition, the rest that flange can provide two fingers to hook under flange, and the 3rd finger carries out the manipulation of equipment, thus help the manipulation of equipment.
Can be in pump case 11 back and forth in axial sliding actuation button assembly 20 comprise a cylindrical circular substantially part 60, the sealing of one end, the other end has the skirt section 24 of expansion; And a spring 13, it vertically is provided with between the bottom 17 of the top inner surface 25 of actuation button assembly 20 and pump case 11, and actuation button assembly 20 is biased into extended position.The end face of actuation button assembly 20 has concentric rib 65 (see figure 2)s, and it is convenient to a finger operate pump assembly 10.
In order to limit the vertical stroke of actuation button assembly 20 in the cylindrical shape part 41 of pump case 11, be provided with a stop motion mechanism 21.Stop motion mechanism 21 is included in the projection 22 that a position on the side 43 of actuation button assembly 20 forms, and it is used for being slidably engaged on one of many guide grooves 23, and described guide groove is to form on the cylindrical shape part 41 of pump case 11, as shown in Figure 3.Projection 22 is preferably near the formation of mid point of the side 43 of actuation button assembly 20, so that guarantee the sufficient length of actuation button stroke.Every guide groove 23 is aimed at the vertical axis of cylindrical shape part 41, stops the motion of projection 22 at the highest and lowest of guide groove 23 end, thereby limits the stroke of actuation button assembly 20.
Many guide groove 23 can have different length, thereby when selecting suitable guide groove 23.Make actuation button assembly 20 that in various degree motion be arranged.Can infer, equipment is for example adjusted by the dispenser in advance in the selling spot, and projection 22 does not move between guide groove 23 afterwards.Equipment is assembled into projection 22 in advance and is near actuation button assembly 20 tops the horizontal slot 62 when offering the dispenser, this can prevent that the actuation button assembly from outwards skidding off pump case 11, and prevents that actuation button assembly 20 from inwardly sliding until the suitable moment.The dispenser aims at the guide groove 23 corresponding to correct dose by actuation button assembly 20 is rotated in pump case 11 until projection 22, thus selected correct dose.Then, the dispenser pushes actuation button downwards with relatively large power, makes projection 22 move to this guide groove 23 from horizontal slot 62, as shown in Figure 3.Above-mentioned moving is to rely on the side 43 inside deflections slightly of actuation button assembly 20 just can carry out.
In addition, between horizontal slot 62 and guide groove 23, on the inside face 42 of pump case 11, preferably be provided with shallow vertical recess 64, move into wrong guide groove 23 so that when promoting projection 22 downwards, prevent projection 22 unexpected side direction.Collimating marks 66 is arranged on the outside of actuation button assembly 20, is used to describe the dosage corresponding to every guide groove 23.Predefined calibrated scale and collimating marks 66 make equipment 10 be particularly suitable for eyesight has the personnel of damage to use.Dosage preferably can change between 2.5 to 5ml.In addition, form an enlarged 38 in the top of every guide groove 23.Guide groove 23 is at the width of enlarged 38 width greater than projection 22.On the projection of the stroke of actuation button assembly 20 and point that the enlarged 38 of selected guide groove 23 is aimed at, actuation button assembly 20 can cw around the vertical axis hand-turning of the cylindrical shape part 41 of pump case 11, so that locked engagement projection 22 in the enlarged 38 of guide groove 23, thereby prevent the axial motion of actuation button assembly 20.Actuation button assembly 20 can be locked at and can avoid on the unexpected position of distributing by this way.
Manual anticlockwise motion actuation button assembly 20 makes projection 22 throw off from the enlarged of guide groove 23, can unclamp pump assembly 10.
But above-mentioned system of selection provides the means of the correct dose of a kind of child-resistant and nonadjustable selection distribution.The precision of administered guarantees by the predefined guide groove 23 of qualified dispenser, thereby avoided the inexactness of legacy equipment, legacy equipment to need the user accurately to adjust equipment and carry out good judgement on the consumption.
Be provided with the pump chamber 16 of a variable volume, it comprises actuation button assembly 20 and pump case 11, uses stop motion mechanism 21 can preestablish an amount from a plurality of known set amounts.
To extended position, the projection 22 of stop motion mechanism 21 contacts with the top of the guide groove of selecting 23 spring 13 on this position with actuation button assembly 20 bias voltages.
An atubular extension portion 35 forms with bottom 17 integral body, thereby forms the Vertical Channel 36 of a pump chamber 16 from container 1 to variable volume.One is soaked pipe 32 and press fit in the atubular extension portion 35.The diameter of passage 36 is slightly smaller than the diameter that soaks pipe 32, and it is fixing by friction to soak pipe 32.Soak the point that descends most that extends container 1 bottom downwards substantially of pipe 32.
Be provided with an inlet valve 30, it is used for the top of closed tube extension 35.Fig. 5, first kind of inlet valve 30 shown in 6A and the 6B comprises a flexure member, this member comprises bottom 90, the first truncated cone portion 91, the second truncated cone portion 94, hermetic unit 92 and ring limit 93.Inlet valve 30 is arranged on the top of atubular extension portion 35, and the bottom 17 of the bottom 90 contact pump cases 11 of inlet valve 30 is fixing on the throne by the effect of the spring 13 that contacts with bottom 90.The first truncated cone portion 91 from the bottom 90 extend upward and with the ring limit 93 contact.The second truncated cone portion 94 extends downward hermetic unit 92 from ring limit 93, forms two otch 95 on the ring limit 93 of inlet valve 30.As shown in Figure 6A, when stopping, actuation button assembly 20 transfixions, hermetic unit 92 guarantees to contact with the top seal of atubular extension portion 35, prevents liquid return in the pump chamber 16 in container 1, and prevents that the liquid in the container 1 from entering pump chamber 16.Inlet valve 30 the most handy low density polyethylene (LDPE)s or other suitable flexible material are made.
Perhaps, as Fig. 7, second kind of inlet valve 30 shown in 8A and the 8B comprises that a bottom 100, one surround atubular extension portion's 35 upwardly extending sleeves 101 and a sealing plug 103, and the sealing plug can contact with the opening of atubular extension portion 35 and fix on the throne by four spring arms 102.On the position of rest that the actuation button assembly is static shown in Fig. 8 A, sealing plug 103 and atubular extension portion 35 sealing contacts are used to prevent that the liquid that crosses inlet valve on all directions from transmitting.In the working process of pump assembly, shown in Fig. 8 B, pressure reduces sealing plug and atubular extension portion 35 depressurizations when actuation button assembly 20 lifts because in the pump chamber 16.The motion of sealing plug 103 is to rely on the deflection of spring arm 102 to carry out.
The third inlet valve 30 shown in Fig. 9 A and 9B comprises a plug sealing member 500, and it is by the 501 guiding upper and lower slips in atubular extension portion 35 of three ribs.The upper end 502 of atubular extension portion 35 has cone shape, and the mating part 503 of plug sealing member 500 is made of an outstanding flexible rib, more helps sealing.On the static position of rest of actuation button assembly, plug sealing member 500 remains on the sealing station by gravity, upper end 502 sealing contacts of mating part 503 and atubular extension portion 35.In the working process of pump assembly, when actuation button was lifted, plug sealing member 500 rose in atubular extension portion 35 under the guiding of the spring 13 that surrounds, and product can be assigned with along the direction shown in the arrow among Figure 11 B.
Fig. 9 A and 9B also represent skirt section sealing member 530; it is made by synthetic rubber school or plastics or its compound; comprise with the lower flange 531 of the outside stretching, extension of cylindrical shape part 41 sealing contacts of pump case 11, with the upwardly extending button flange 532 of the inside face sealing contact of the cylindrical shape part 60 of actuation button assembly 20, and be located at the cylindrical shape part 533 of spring 13 with interior downward extension.Skirt section sealing member 530 is used to prevent that liquid is transferred to the top 540 of actuation button assembly 20 or shifts from the pump chamber 16 of variable volume between the cylindrical shape part 60 of the cylindrical shape part 41 of pump case 11 and actuation button assembly 20, and is used for supporting and keeps in alignment with spring 13.Skirt section sealing member 530 forms by sealing skirt 530 with respect to the size of the internal diameter of the pump chamber 16 of variable volume and acts on sealing force on the inwall of pump chamber 16.The upper end of spring 13 acts on the skirt section sealing member 530.At pump assembly on period, skirt section sealing member 530 and actuation button assembly 20 move axially as one.
As Figure 10 A, the 4th kind of inlet valve 30 shown in 10B and the 10C comprises a plug sealing member 600, and it is by the 601 guiding upper and lower slips in atubular extension portion 35 of three ribs.The lower end 603 of plug sealing member 600 comes to a point to increase the reliability that the plug sealing member axially moves in passage 36.The upper end of atubular extension portion 35 is identical with the third inlet valve 30 with the structure of the mating part 607 of plug sealing member.
The 4th kind of difference with the third is: mating part 607 is surrounded by concentric ring 602, and this concentric ring and mating part 607 are spaced apart, and coupled by a plurality of spring arm 605.Preferably be provided with three spring arms 605, but 4,5 or more spring arms 605 also can be set, the plug sealing member is arranged in the passage 36, and the 5th kind of inlet valve 30 has the mating part 607 that can contact with the conical portion of atubular extension portion 35.Concentric ring 602 is arranged on the planar section 608 of atubular extension portion 35 upper ends.Spring 13 extends upwardly to skirt section sealing member 530 from the end face of concentric ring 602, thereby concentric ring 602 is fixing on the throne.Plug sealing member 600 can be made with low density polyethylene (LDPE) or similar material, and its intrinsic elasticity makes the mating part 607 of plug sealing member 600 not make concentric ring 602 displacements from 35 disengagements of atubular extension portion.
Therefore, the 4th kind of inlet valve 30 provides a kind of makes import and equipment leak free means in any direction, even the character of spring arm 605 also can make the valve closure when the fluid that flows through valve is paste or thickness.
First, second and the 4th kind of inlet valve are can be in any direction and equipment 10 leak frees " compulsory (Positive) " valve, do not need gravity just can seal.The third inlet valve 30 is " gravity " valves, and it remains on the sealing station by gravity, and remains on this position when actuation button assembly 20 stops.But the third inlet valve 30 is easy to change over " pressure " valve, as long as set up a low loading spring, when actuation button assembly 20 is static, as the 4th kind of inlet valve 30, bias voltage inlet valve 30 makes its contact tubulose extension 35, thus back seal in any direction.
As shown in figure 12, first kind of blowoff valve 50 comprises a tip seals 120, and it inserts in the groove 113 that forms in the discharge side 40.Tip seals 120 comprises tongue-like part 121, sidewall 122, the lateral member 123 of extending and terminal 124 between the two side.Tongue-like part 121 is in the forefront during tip seals insertion groove 113, and the size of tongue-like part 121 makes them can be in discharge side 40 slides within.The size of sidewall 122 is engaged in the groove 113 it hermetically, and the edge 125 of sidewall 122 is leaned against on the inside face 114 of fork 112 hermetically, and the inside face 126 of sidewall 122 is leaned against on the flange 115 that forms on the inside face 114 of fork 112 hermetically.
Recess 116 forms on fork 112 inside face 114, directed flange 115, and the distance of the width of a lateral member 123 that is equivalent to tip seals 120 with interval.When end seal 120 inserts when entering mouthfuls 40, lateral member 123 utilizes the inclined-plane 117 of recess 116 to cross recess 116, is securely fixed in the gap between recess 116 flanges 115.On the static position of rest of actuation button assembly 20, the outside face of tip seals 120 flushes with the outside face of discharge side 40, all external margins of tip seals 120 are sealed, prevent that liquid or air from crossing sealing member in either direction, its advantage is: can prevent the biological pollution of the content of pump chamber 16 in the time of between the pump assembly is being enabled.Similar to inlet valve 30, blowoff valve is leak free " pressure " valve in any direction.
Second kind of blowoff valve 50 is illustrated in Figure 13 A, among 13B and the 13C.Tongue-like part 121 is microscler, from the terminal 124 choosing ends of counting a drain plug 250 is arranged.Tongue-like part is connected in lateral member 123 from terminal 124 nearest ends.Drain plug 250 comprises the conical portion 251 and three longitudinal ribs 253 that are used for the boss 252 of sealed engagement discharge side 40, and they are used for axial lead drain plug 250 in discharge side 40.Tongue-like part 121 preferably has circular cross section.
The length of tongue-like part 121 makes that tongue-like part 121 is snakelike owing to its elastomeric material character forms, and forces sealing plug 250 to contact with boss 252 when blowoff valve 50 inserts in the end of discharge sides 40.During the pump assembly operation, pump chamber 16 and the increase of the fluid pressure in discharge side 40 bottoms in variable volume force sealing plug 250 and boss 252 to disengage, and make fluid flow out tip seals 120 around sealing plug.Only comprise sidewall 122 on half of discharge side 140 in the tip seals 120 of the modification shown in Figure 13 A and the 13B.On the bottom of sealing member 120, the sealing contact between sidewall 122 and discharge side 40 is facilitated by the tongue-like part 258 of wall and the layout of groove 259 endways, and this layout also is used to keep sidewall to work as its aligning when the 10 on period deflections of pump assembly.The path representation of exhaust fluid is in Figure 13 B.Sealing plug 250 is Figure 13 C along the cross-sectional figure in A-A cross section among Figure 13 A.Sealing plug 250 can comprise the longitudinal rib 253 more than 3.
The third blowoff valve 50 is illustrated among Figure 14 A and the 14B.This blowoff valve is worked according to the mode similar to above-mentioned second kind of blowoff valve.Sealing plug 250 is included in tongue-like part 121 and has a flat hermetic unit 255 from end 124 end farthest.The advantage of this blowoff valve is, can improve the sealing contact between flat hermetic unit 255 and the boss 252 when using some fluid.
Flat hermetic unit 255 can change as shown in Figure 14B like that, comprises a flexible fin 256 on drain plug 250.In addition, boss 252 can be substituted by a truncated cone part 257.The advantage of this modification is, can improve the sealing contact between drain plug 250 and the truncated cone part 257 when using some fluid.
Above-mentioned every kind of blowoff valve 50 is designed to a molded components, and its advantage is to reduce to be made and assembly cost.
The 4th kind of blowoff valve 50 is illustrated among Figure 14 C.This blowoff valve 50 according to be similar to above-mentioned second and the mode of the third blowoff valve work.
In this blowoff valve, discharge side 40 also opens wide at its far-end, comprises a slit 110 on the wall of discharge side 40.Blowoff valve 300 comprises the end 301 of a rounding in the open end that is assemblied in discharge side 40, a rib 302 and a snakelike tongue-like part 304 that body part 303 is connected in drain plug 250 that end 301 is connected in body part 303.Drain plug 250 is formed with three ribs 253 and slides in discharge side 40 to help drain plug, and comprising a flexible fin in its end away from snakelike tongue-like part 304, it is placed in the truncated cone part 257 in the discharge side 40 by the mode according to the layout shown in Figure 14 B of being similar to.Body part 303 also comprises a flexible rib 306 of extending from body part 303, this flexible rib is roughly parallel to and with respect to rib 302, and comprise shape end, rank 307 in its end away from body part 303, this shape end, rank is assemblied in the recess 308 of end 301 of rounding, in use can make rib 306 deflections.Rib 306 is assemblied in the slit 110 of discharge side 40 so that seal this slit at position of rest.Width is adjacent to part oblique extension the discharging valve member of the far-end of rib 306 greater than the vane member 310 of rib 302,306 from 303 to one of body parts.
Above-mentioned the 4th kind of blowoff valve 50 according to above-mentioned second and the similar mode of the third blowoff valve work, but its structure is more conducive to make and assembling.
Describe now the operation of pump assembly 10, suppose that initial position pump chamber 16 fills with fluid, actuation button assembly 20 stretches at position of rest.
Distribute the on-cycle F/s to comprise and depress actuation button assembly 20 and spring 13 with finger.This reduces the volume of the pump chamber 16 of variable volume, and fluid pressure is wherein increased.The pressure that increases act on the inlet valve 30 with firmly will fill in 103,500,600 or hermetic unit 92 be sealed in the atubular extension portion 35, thereby preventing that fluid in the pump chamber 16 from entering to soak manages 32.Simultaneously, the fluid pressure action of increase on the inside face 126 of the sidewall 122 of sealing member 120, is outwards arched it, and is acted on the edge 125 endways, makes it remove sealing with the inside face 114 of the fork 112 of discharge side 40.
Tip seals is fixed on the position in the discharge side 40, is not ejected by the effect of the motion of recess 116 limit lateral parts 123.Therefore, the end 124 of tip seals 120 keeps static in the whole work of equipment.Outwards arching in first kind of tip seals 120 of sidewall 122 is that the end 124 that relies on the tongue-like part 121 of tip seals 120 to shift to tip seals 120 along discharge side 40 is realized.Second and the third tip seals 120 in the motion of sidewall 122 rely on the motion on the tongue-like part 258 of groove 259 at wall to realize.Therefore, fluid is discharged by the gap between the edge 125 of the edge of groove 113 and tip seals 120 from pump chamber 16.
The end of discharge side 40 preferably is placed in patient's the mouth in the work of equipment, and fluid directly is distributed in the mouth.This is that favourable reason is that equipment can not resemble the sort of residue that is difficult to dispose that produces when using the soupspoon drug delivery, in addition, the danger of also not splashing comprises that the equipment 10 of failure-free inlet valve 30 and blowoff valve 50 can use in any direction, for example, to the children's medicine feed that lies on a bed.In addition, the gap between the edge 125 of the edge of groove 113 and tip seals 120 is positioned on the side of discharge side 40, thus medicine advantageously side direction be assigned in the mouth.Shown in the arrow among Fig. 2.This makes to distribute and is easy to carry out, and has avoided the danger at the rear portion of damage user throat, and can reduce the speed that medicine is fed forward.Above-mentioned two kinds of effect persons capable of reducing using choke the plug possibility or cause the uncomfortable possibility of user.
At this moment, the fluid dosage of regulation is discharged.When unclamping actuation button assembly 20, spring 13 acts on the top inner surface of actuation button assembly 20, makes actuation button assembly 20 axially retract extended position.This motion produces differential pressure owing to the airtight character of the skirt section sealing member 530 of sealing member between pump case 11 and skirt section 24 and/or actuation button assembly 20 makes in the pump chamber 16.This differential pressure acts on the tip seals 120, makes sidewall 122 retract the position of rest of sealing blowoff valve 50.Simultaneously, the hermetic unit 92 of this differential pressure depressurization plug 103,500,600 or inlet valve 30 and the sealing of atubular extension portion 35; This motion relies on shown in Fig. 6 B ring limit 93 to scroll up in first kind of inlet valve 30 and realizes, the first truncated cone part 91 is stretched, and the second truncated cone part, 94 length reduce, and cause hermetic unit 92 to be mentioned from atubular extension portion 35.This motion relies on the motion of spring arm 102 shown in Fig. 8 B to realize in second kind of inlet valve 30.
Fluid in the container 1 is along soaking pipe 32 upwards through gap between the inlet valve 30 medi-spring arms 102 of the otch 95 in the inlet valve 30 of first embodiment or second embodiment or the atubular extension portion 35 among the 3rd embodiment, sucks in the pump chamber 16 because of the pressure reduction of 1 in pump chamber 16 and container.This motion relies on the motion of the spring arm 605 shown in Figure 10 B to realize in the 4th kind of inlet valve 30.Spring 13 axially stretches actuation button assembly 20 till the top of the selected guide groove 23 of projection 22 contacts of stop motion mechanism 21.When actuation button assembly 20 stopped to stretch, inlet valve 30 sealed once more.
Finish one this moment and distributed circulation.Advantageously, distributing box can be operated by one hand.
The second embodiment of the present invention is illustrated among Figure 15 to 18.
In the present embodiment, the pump chamber 816 of variable volume essentially horizontally is provided with, and container 801 is basically perpendicular to pump chamber 816.
Be provided with actuation button assembly 820 and in the cylindrical shape part 841 of pump case 811, can make reciprocal axial motion.Actuation button assembly 820 comprises a cylinder-shaped coat tube 825, and the one end seals and forms the button of using finger control, and the other end opens wide.Be provided with stop motion mechanism 821 with the horizontal throw of restriction outer sleeve 825 in pump case 811.Stop motion mechanism 821 comprises a projection 822 that forms near the mid point of the side 843 of outer sleeve 825, it is slidably engaged in one of several guide grooves 823 on the cylindrical shape part 841 of pump case 811.Stop motion mechanism 821 is worked according to the mode identical with the stop motion mechanism 21 of first embodiment.
Perhaps, in a modification of stop motion mechanism 821, tank 62 is not set.As an alternative be, this equipment is in when supply, actuation button assembly 820 is inserted in the cylindrical shape part 841 of pump case 811, projection 822 is against the collar 830 of shell.And by the effect of the detent joint 831 of as shown in figure 17 button and fixing on the throne.Before use first time equipment, rotary-actuated button, make projection 22 aim at correct guide groove 823, then, push actuation button with relatively large power, the detent joint 831 of button is disconnected, and projection 822 is at 811 times immigration guide grooves 823 of pump case, and projection is identical from the mode that horizontal slot 62 moves to guide groove 23 in its mode and the first embodiment of the invention.
Therefore, between the inside face 872 of the cylindrical shape part 841 of the outside face 871 of inner sleeve 827 and pump case 11, form an annular space 870.Space 870 is being sealed by liquid sealing device 873 from outer sleeve 825 nearest ends, is being sealed by a flexible membrane 874 from discharge side 840 nearest ends.The liquid sealing device 873 that can comprise an O V-shaped ring is provided with to such an extent that contact regularly with the outside face 871 of inner sleeve 827, and with the inside face moving contact of the cylindrical shape part 841 of pump case 811.Therefore, the movable sealing device of the fluid-tight in the liquid sealing device 873 looping spaces 870.The shape of diaphragm 874 is annular.Ring limit 876 fix in position of diaphragm 874 are connected between the end of inner sleeve 827 and retracing spring 813.The other end of spring 813 is resisted against the shoulder 880 that forms on pump case 811 inside faces at the junction surface between cylindrical shape part 841 and the discharge side 840.
The pump chamber 816 of a variable volume is limited between base portion 817 and the discharge side 840.Fluid between annular space 870 and the pump chamber 816 is communicated with the influence that forms import 877 on the bottom 817 that is subjected to inner sleeve 827.
One soaks the 832 atubular extension portions 835 by pump case 811 of managing is communicated with annular space 870.The same with first embodiment, soak pipe 832 and be force-fitted in the extension 835, and fixing on the throne by friction.Atubular extension portion 835 preferably and stop motion mechanism 821 and calibrated scale 866 relatively be provided with so that make the user when container 81 is being fixed equipment, can easily read calibrated scale 866.Atubular extension portion 835 is surrounded by a ring set 812, so that adorn, tear open pump assembly 810 by the bindiny mechanism of screw device or other detouchable fluid-tight on container 81.Ring set 812 can resemble and have rib first embodiment.Soak the bottom that pipe 832 extends container 801 substantially.
Describe the operation of pump assembly 810 now, suppose that pump chamber 816 is full of fluid on the initial position, actuation button assembly 820 stretches on position of rest.
Distribution on-cycle F/s comprises press...withing one's finger presses the outer sleeve 825 of actuation button assembly 820.Outer sleeve 825 axially moves in pump case 811 together with inner sleeve 827, liquid sealing device 873 and bottom 817, and compression spring 813 reduces the volume of pump chamber 816 and increases the pressure of its inner fluid.Simultaneously, flexible membrane 874 be subjected to the fluid pressures that increase in the pump chamber 816 compressing and with bottom 817 sealing contacts, the same with first embodiment, fluid is discharged via blowoff valve 850, resembles the restriction that the inside motion of actuation button assembly 820 first embodiment is subjected to stop motion mechanism 821.
When actuation button assembly 820 unclamped, spring 813 stretched actuation button assembly 820 and gets back to its position of rest.Simultaneously, pressure reduction makes blowoff valve 850 closures, and makes the sealing of flexible membrane 874 releasings and bottom 817, opens container 801 and pump chamber 816 and is communicated with by the fluid that soaks pipe 832 and pump chamber import 877.In the return of stroke of actuation button assembly 820, soak pipe 832 and keep being communicated with pump chamber 818 with the part of annular space 870 and by pump chamber import 877 always.Therefore, the fluid in the container 801 by pump chamber with respect to the negative pressure of fluid in the container 801 and be drawn in the pump chamber 816.
At this moment, one is distributed circulation to finish.Advantageously, distribute circulation to finish by one hand.
The present invention is not limited to the foregoing description, can do various variations to the present invention in claims restricted portion.
Claims (32)
1. pump assembly, it comprises:
A discharge side;
A pump chamber;
A pump case;
Be used to change the device of pump chamber;
Springing, it is used for pump chamber is biased into position corresponding to the pump chamber maximum volume;
, a fluid passage, it is used for a position in the pump chamber is delivered in the position of fluid outside pump chamber;
The inlet valve device, it is used to seal described fluid passage;
Be used for the pump assembly is installed in device on the container;
Discharge valve system, it is used for seal drain port, is provided with adjacent to the end of discharge side away from pump chamber, and wherein, the fluid that distributes by discharge valve system points to side direction, and this valve gear is applicable to the paste viscous fluid.
2. pump assembly, it comprises:
A discharge side;
A pump chamber;
A pump case;
Be used to change the device of pump chamber;
Springing, it is used for pump chamber is biased into position corresponding to the pump chamber maximum volume;
, a fluid passage, it is used for a position in the pump chamber is delivered in the position of fluid outside pump chamber;
The inlet valve device, it is used to seal described fluid passage;
Be used for the pump assembly is installed in device on the container;
Wherein:
The device that is used to change pump chamber comprises:
An actuation button assembly;
Stop motion mechanism, it is used to limit the vertical stroke of actuation button assembly;
Described stop motion mechanism comprises:
Be used to preestablish the device of administered; And
Calibrating installation with the accuracy control administered.
3. pump assembly as claimed in claim 1 or 2 is characterized in that: the device that is used to preestablish administered comprises a projection, and it can select to be in one of many guide grooves.
4. pump assembly as claimed in claim 3 is characterized in that; Described projection has an inclined-plane on its lower surface, make projection can be under one one of pump chamber housing through and make projection move to one of guide groove from a groove.
5. pump assembly as claimed in claim 3 is characterized in that: described calibrating installation comprises the guide groove of many different lengths, and described projection can endwisely slip in guide groove.
6. pump assembly as claimed in claim 5 is characterized in that: described guide groove is included in every guide groove enlarged topmost, and it is used for admitting described projection in case the actuation button assembly moves axially unexpectedly when around the rotary-actuated button component of pump chamber vertical axis.
7. pump assembly as claimed in claim 1 or 2 is characterized in that: described being used for comprises a spring with the springing that pump chamber is biased into corresponding to the position of pump chamber maximum volume.
8. pump assembly as claimed in claim 1 or 2 is characterized in that: described fluid passage comprises a pipe that soaks that extends the container nadir from pump chamber substantially.
9. pump assembly as claimed in claim 1 or 2 is characterized in that: described inlet valve comprises that is used for the Forced Valve device of canned pump assembly in any direction.
10. pump assembly as claimed in claim 9 is characterized in that: described Forced Valve device comprises a flexure member, and this flexure member comprises a bottom, first truncated cone part, second truncated cone part, a hermetic unit and a ring limit; Described hermetic unit is biased and on the passage of sealing contact in the pump chamber housing, make fluid enter pump chamber in response to the pressure reduction of described valve gear both sides.
11. pump assembly as claimed in claim 10 is characterized in that: the ring limit of described inlet valve device comprises one or more otch, and it is used to make fluid to enter pump chamber.
12. pump assembly as claimed in claim 9, it is characterized in that: described inlet valve comprises a bottom, a upwardly extending sleeve, a sealing plug and one or more spring arm, and it is used for the described sealing plug of bias voltage makes the atubular extension portion of its sealing contact at the pump chamber housing.
13. pump assembly as claimed in claim 1 or 2.It is characterized in that: described inlet valve device comprises that can be filled in a sealing arrangement in axial sliding in the passage of pump chamber housing; Described plug sealing arrangement comprises the mating part and many ribs that are used at the described plug sealing arrangement of described passage guiding that are used for sealed engagement atubular extension portion.
14. pump assembly as claimed in claim 13 is characterized in that: described mating part comprises the flexible rib of a projection.
15. as each described pump assembly in the claim 13 to 14, it is characterized in that: described plug comprises by two or the connected ring of more spring arms, the described plug of described spring arm bias voltage, make the atubular extension portion sealed engagement of itself and pump case, described ring contacts with pump case by the effect maintenance of spring.
16. pump assembly as claimed in claim 1 or 2 is characterized in that: described discharge valve system comprises a tip seals that forms on the end of described discharge side.
17. pump assembly as claimed in claim 16 is characterized in that: described tip seals comprises a tongue-like part, one or more sidewall and lateral member that is used for described tip seals is remained on discharge side that is used for the described discharge side of sealed engagement.
18. pump assembly as claimed in claim 17 is characterized in that: the surface of described sidewall flushes with the outside face of described discharge side.
19. pump assembly as claimed in claim 16 is characterized in that: when described actuation button assembly was static, described tip seals was biased on the described sealing station, and wherein, tip seals adapts to the situation that fluid distributes when handling the actuation button assembly.
20. pump assembly as claimed in claim 18 is characterized in that: the fluid that is assigned be basically perpendicular to discharge side axis be assigned with.
21. pump assembly as claimed in claim 16 is characterized in that: described tip seals comprises a microscler tongue-like part that is connected in a lateral member, and one is connected in described microscler tongue-like part, is used for the drain plug of a boss of sealed engagement discharge side; The described drain plug of described microscler tongue-like part bias voltage makes itself and described boss sealed engagement.
22. pump assembly as claimed in claim 21 is characterized in that: described drain plug comprises many longitudinal ribs, it is used for guiding described drain plug axially to slide at discharge side 40.
23. pump assembly as claimed in claim 21 is characterized in that: described drain plug comprises a conical portion, and it is used for and described boss sealed engagement.
24. pump assembly as claimed in claim 21 is characterized in that: described emptying pump comprises the flexible rib of a projection, it is used for a truncated cone part of the described discharge side of sealed engagement.
25. as the described pump assembly of claim 21 to 23, it is characterized in that: described discharge valve system comprises a molded components.
26. pump assembly as claimed in claim 1 or 2 is characterized in that: described discharge side is basically perpendicular to the setting of pump case spindle axis.
27. pump assembly as claimed in claim 1 or 2 is characterized in that: described discharge side becomes the angle ground that makes progress slightly to be provided with described pump case spindle axis vertical direction.
28. pump assembly as claimed in claim 1 or 2 is characterized in that: the basic and pump case spindle axis of described discharge side as one man is provided with.
29. pump assembly as claimed in claim 1 or 2 is characterized in that: a seal ring is arranged between pump case and the actuation button assembly, so that improve sealing.
30. pump assembly as claimed in claim 1 or 2 is characterized in that: a sealing skirt is arranged in the pump case, and it is used for and pump case and actuation button assembly sealed engagement.
31. pump assembly as claimed in claim 30 is characterized in that: described sealing skirt and described actuation button assembly move axially as one.
32. describe and pump assembly shown in the drawings according to fwd substantially for one kind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9702688.4A GB9702688D0 (en) | 1997-02-10 | 1997-02-10 | A dispensing apparatus |
| GB9702688.4 | 1997-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1246812A true CN1246812A (en) | 2000-03-08 |
Family
ID=10807372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98802393.8A Pending CN1246812A (en) | 1997-02-10 | 1998-02-10 | Dispensing apparatus |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0958063A1 (en) |
| JP (1) | JP2000513780A (en) |
| CN (1) | CN1246812A (en) |
| AU (1) | AU5999498A (en) |
| CA (1) | CA2280053A1 (en) |
| GB (1) | GB9702688D0 (en) |
| WO (1) | WO1998034732A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298660C (en) * | 2005-12-23 | 2007-02-07 | 曾大勇 | Cement grineing aid and its preparation method |
| CN100464866C (en) * | 2002-06-20 | 2009-03-04 | Rpc威科有限责任公司 | Dispenser head with a check valve |
| CN101184603B (en) * | 2005-04-14 | 2011-02-02 | 里洛克澳大利亚有限公司 | Underground and partly submerged pipe winding apparatus and method |
| CN101780861B (en) * | 2009-11-13 | 2012-02-08 | 上海格兰化妆品有限公司 | Push type storage container |
| WO2017088793A1 (en) * | 2015-11-25 | 2017-06-01 | King's Flair Marketing Limited | Fluid dispenser with reflux mechanism |
| CN108136426A (en) * | 2015-07-24 | 2018-06-08 | 斯勒冈分配系统公司 | Adjustable dosage distributor and its application method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382204B1 (en) | 1999-10-14 | 2002-05-07 | Becton Dickinson And Company | Drug delivery system including holder and drug container |
| GB0019715D0 (en) | 2000-08-10 | 2000-09-27 | Pa Consulting Services | Device for delivering physiologically active agent in powdered form |
| GB0227173D0 (en) * | 2002-11-21 | 2002-12-24 | Jaycare Ltd | Dispensing pump |
| DE10259275A1 (en) * | 2002-12-17 | 2004-07-01 | Eric Schliemann | metering |
| WO2005068084A1 (en) * | 2004-01-15 | 2005-07-28 | Incro Limited | A valve and a pump-action dispenser device having such a valve |
| JP5186056B1 (en) * | 2012-07-26 | 2013-04-17 | 洋一 佐々木 | Compressor / depressurizer, discharge device and suction / discharge device using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1106238A (en) * | 1965-06-17 | 1968-03-13 | Morris Fram | A reciprocating liquid dispensing pump |
| FR2300916A1 (en) * | 1975-02-17 | 1976-09-10 | Oreal | Valve controlled cosmetic spray pump - has main upper piston and spring loaded lower piston with stop valve |
-
1997
- 1997-02-10 GB GBGB9702688.4A patent/GB9702688D0/en active Pending
-
1998
- 1998-02-10 WO PCT/GB1998/000401 patent/WO1998034732A1/en not_active Application Discontinuation
- 1998-02-10 EP EP98903170A patent/EP0958063A1/en not_active Withdrawn
- 1998-02-10 JP JP10534012A patent/JP2000513780A/en active Pending
- 1998-02-10 CN CN98802393.8A patent/CN1246812A/en active Pending
- 1998-02-10 CA CA002280053A patent/CA2280053A1/en not_active Abandoned
- 1998-02-10 AU AU59994/98A patent/AU5999498A/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464866C (en) * | 2002-06-20 | 2009-03-04 | Rpc威科有限责任公司 | Dispenser head with a check valve |
| CN101184603B (en) * | 2005-04-14 | 2011-02-02 | 里洛克澳大利亚有限公司 | Underground and partly submerged pipe winding apparatus and method |
| CN1298660C (en) * | 2005-12-23 | 2007-02-07 | 曾大勇 | Cement grineing aid and its preparation method |
| CN101780861B (en) * | 2009-11-13 | 2012-02-08 | 上海格兰化妆品有限公司 | Push type storage container |
| CN108136426A (en) * | 2015-07-24 | 2018-06-08 | 斯勒冈分配系统公司 | Adjustable dosage distributor and its application method |
| WO2017088793A1 (en) * | 2015-11-25 | 2017-06-01 | King's Flair Marketing Limited | Fluid dispenser with reflux mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9702688D0 (en) | 1997-04-02 |
| JP2000513780A (en) | 2000-10-17 |
| EP0958063A1 (en) | 1999-11-24 |
| AU5999498A (en) | 1998-08-26 |
| CA2280053A1 (en) | 1998-08-13 |
| WO1998034732A1 (en) | 1998-08-13 |
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