CN101018718A - Apparatus and method for dispensing high purity materials - Google Patents
Apparatus and method for dispensing high purity materials Download PDFInfo
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- CN101018718A CN101018718A CN 200580022961 CN200580022961A CN101018718A CN 101018718 A CN101018718 A CN 101018718A CN 200580022961 CN200580022961 CN 200580022961 CN 200580022961 A CN200580022961 A CN 200580022961A CN 101018718 A CN101018718 A CN 101018718A
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Abstract
This invention relates to a system or apparatus (10) and a method for dispensing a material (16) from a pressurized container (12) while maintaining product integrity. The system or apparatus comprises a pressurized container for holding the material and having a dispensing valve (20) provided with a dispensing conduit or stem (26) for dispensing the material from the container at the appropriate time, a syringe (42) equipped with an on/off locking mechanism (48) for permitting or preventing flow of the material into and out of the syringe by way of a stem or conduit (50) attached to the locking mechanism, and a removable adaptor (34) for connecting the stem of the syringe to the stem of the dispensing valve of the pressurized container for permitting flow of material from the pressurized container into a chamber of the syringe upon actuation of the dispensing valve.
Description
Technical field
The present invention relates to from a container, distribute high-purity material, and can not damage the system or the apparatus and method of the purity of material.More particularly, the present invention relates to from a container and particularly from (positive) dispense container of a pressurization or jar, divide the high-purity chemical product and the particularly super dry solvent that are used in the bench scale study on the synthesis, keep the system or the apparatus and method of the original position of this material simultaneously.
Background technology
Known many being used for from the distribution system of pressure container dispensing materials.Generally, material distributes in having the pressure container of distributing valve.When this valve work, internal pressure in container and the difference of pressure between the ambient pressure be dispensing materials from container.Though this simple system is an acceptable in many application of the problem that the continuous purity and the original position of the material that will distribute is major concern, this system can not keep the purity and the original position of material when dispensing materials.A kind of this material is the super dry solvent that is used for the bench scale study on the synthesis.Contact the quality that can reduce this super dry solvent with oxygen with moisture.
In order to store on a large scale and to distribute this super dry solvent, have the CYCLE-TAINER container of solvent delivery system at present.This system comprises that size dimension is 4,8,52,215 and 1250 liters, hold the osed top rustless steel container of the material that will distribute, and this container has corresponding valve.In use, the transfer valve of this container and pressure unreactable gas, for example argon or nitrogenous source connect, and the delivery valve of this container is connected with the reactor that directly leads to the material that uses or utilize storage or the flexible pipe of container.When in this container that pressed gas is led, can dispensing materials.Cut off inert gas source and shutoff valve, can stop this material from the distribution of container and the original position of preservation storing material.Yet, this system only distributes the condition of material in a small amount from the pressure container of pressurization for hope, the super dry solvent material of for example wishing only to distribute about 10～20mL from pressure container is to be not suitable for for the condition of bench scale study on the synthesis, and is unactual or unacceptable.A kind of technical method that addresses this problem is to use under inert gas blanket, the bottle or the container of syringe and the diaphragm seal that holds the desirable material that will distribute.Adopt the device of this form, in order to extract material from membrane vessel, the user must utilize the barrier film of the needle-penetration bottle of syringe.Yet inserting a needle in the membrane vessel itself can be the reason of this material contamination and the original position that can destroy this material.In addition, pierce through barrier film and can on barrier film, stay next hole, inert gas blanket is overflowed and oxygen of atmosphere-particularly and moisture are introduced the material that is stored in the membrane vessel.Therefore, need a kind of acceptable distribution system or device to be used for from the pressure container dispensing materials certainly, the timing of particularly material in a small amount, and branch can keep wanting the purity and the original position of dispensing materials.
Summary of the invention
The present invention relates to keeping under the product original position condition system of dispensing materials or apparatus and method from pressure container.This system or device comprise a pressure container that is used to keep this material and has a distributing valve, are equipped with syringe and removable adapter of on/off catch gear.This distributing valve has distribution ducts or bar, be used for the corresponding time from this container allocation material.This on/off catch gear utilizes and this catch gear bonded assembly bar or conduit, allows or prevents the material inflow and flow out syringe.This adapter is used for the bar of this syringe is connected with the bar of pressure container distributing valve, when working with convenient distributing valve, material is flowed into the chamber of syringe from pressure container.
In a preferred embodiment of system of the present invention or device, this distributing valve comprises that is made a reciprocating valve.When this syringe stem is connected with valve rod by adapter, with this valve rod when can reciprocally move in the inside of pressure container, one or more holes on the valve rod do not cover, allow material to flow to syringe cavity from container, can not be exposed to any pollutants or reaction material, thereby can dispensing materials, keep its original position simultaneously.In another preferred embodiment of the present invention, provide to prevent that moisture from entering the desiccant of pressure container.
In one embodiment, the present invention includes storage and, keep wanting the original position of dispensing materials or the device of purity simultaneously from the pressure container dispensing materials.This device comprises:
A) pressure container of dispensing materials is wanted in maintenance, and this pressure container has the distributing valve that has a distribution valve rod, and the far-end of this valve rod is outstanding from pressure container, and its near-end stretches in the pressure container;
B) syringe, it has 1) the on/off locking piece, be used for allowing/or prevent that material from flowing into or the outflow syringe cavity; With 2) bar, its end stretches out from syringe, is used to receive the material that comes from pressure container; With
C) removable adapter, it makes from the far-end of the outstanding distribution valve rod of pressure container and is connected with the end of the bar that stretches out from syringe, to set up the admissible flow channel from a bar to another bar; Therefore,, can make material flow in the syringe and distributing valve when under allocation model, working, can make material flow to syringe cavity from pressure container when this on/off locking piece during in the work of logical position.
In another embodiment, but the present invention includes the device that distributing valve wherein comprises a crank motion valve.
In another embodiment, the present invention includes a device, wherein, the valve rod of distributing valve is hollow, but the near-end in container sealing, and has the hole of one or more coverings along this bar; But this valve rod inwardly enters in the pressure container crank motion, to open the one or more holes on this valve rod, makes the material can be from pressure container, by these one or more holes, flow in the valve rod and the inflow syringe cavity in.
In another embodiment, the present invention includes a device, wherein distributing the one or more holes on the valve rod to be positioned on the circumference that distributes valve rod, but and covering until distributing valve rod inwardly to enter in the pressure container, to open this one or more holes crank motion by gasket seal.
In another embodiment, the present invention includes a device, wherein, gasket seal is a material annulus that surrounds this distribution valve rod with state slidably.
In another embodiment, the present invention includes a device, wherein, the pressure container of the material that maintenance will distribute is the dispense container of pressurization, and it comprises the pressure container of a bag with material that dress will distribute again.Described bag is connected with the fluid flowing Relationship with distributing valve, and described bag by the pressed gas in this container-preferably for example be the encirclement of argon or nitrogen.
In another embodiment, the present invention includes a device, wherein, the pressure container of the material that maintenance will distribute is the dispense container of pressurization, and it comprises the pressure container of a bag with material that dress will distribute again.Described bag is connected with fluid-flow relation with distributing valve, and described bag is surrounded by the pressed gas in this container.In another embodiment, can be at pressure container and keep placing desiccant material in the space between the bag of the material that will distribute, promptly between wall of a container and bag, keep-up pressure and place desiccant material in the space of gas, enter in the bag of the material that dress will distribute to prevent moisture in the container.
In another embodiment, the present invention includes a device, wherein, this bag is connected with distributing valve by a valve union.This valve union has a centre hole, allows material to flow out this bag.Distribute valve rod on the direction outside from this pressure container, be seated in this valve union with bias state, can prevent before distributing valve work, material flows out by this valve rod.
In another embodiment, the present invention includes a device, wherein, distribute valve rod to be seated on the biasing spring in this valve union.
In another embodiment, the present invention includes a device, wherein, adapter comprises by channel attached two recesses of the material center flow in this adapter.A recess is connected with the far-end that distributes valve rod, and another recess is connected with the end of syringe stem, can make material flow to syringe stem from distributing valve rod, makes material to flow to syringe cavity from pressure container, and is not exposed in the atmosphere.
In another embodiment, the present invention includes a device, wherein, this adapter comprises by two recesses of material flow channel bonded assembly.A recess is connected with the far-end that distributes valve rod, and another recess is connected with the end of syringe stem, makes material flow to syringe stem from distributing valve rod, makes material to flow to syringe cavity from pressure container.
In another embodiment, the present invention includes a device, wherein the on/off of this on syringe locking piece is Luer Lock.
In another embodiment, the present invention includes a device, wherein, syringe has on the injector tip relative with syringe stem, from the outwardly directed reciprocating piston of syringe cavity.
In another embodiment, the present invention includes storage and, keep the original position of the material that will distribute or the method for purity simultaneously from the pressure container dispensing materials.This method comprises:
A) pressure container that provides maintenance to want dispensing materials, this pressure container have and have the distributing valve that distributes valve rod, and the far-end of this valve rod is outstanding from pressure container, and its near-end stretches in the pressure container;
B) provide a syringe, this syringe is provided with 1) an on/off locking piece, be used for allowing/or prevent that material from flowing into or flow out syringe cavity and 2) bar, it has the end that stretches out from syringe, can receive material from pressure container; With
C) provide a removable adapter, be used to make far-end to be connected, to set up allowed flow channel from a bar to another bar with the end of the bar that stretches out from syringe from the outstanding distribution valve rod of pressure container;
D) this adapter is connected with the far-end of the distribution valve rod of giving prominence to from pressure container and the end of the bar that stretches out from syringe; With
E) make this on/off locking piece in logical position work, flow in the syringe to allow material;
F) distributing valve is worked under allocation model, make material flow to syringe cavity from pressure container; With
G) make this on/off locking piece in open position work, to be isolated in the material in the syringe cavity.
In another embodiment, the present invention includes a kind of method, it has then and replaces syringe stem with pin, makes this on/off locking piece material is expelled to additional step the bounded system of using this material in logical position work with from syringe cavity.
In another embodiment, the present invention includes a kind of method, wherein, distributing valve comprises reciprocating valve.
In another embodiment, the present invention includes a kind of method, wherein, the valve rod of distributing valve is hollow, but the proximal end in container is an osed top, and has the hole of one or more coverings along this bar.But this valve is inwardly made crank motion by valve rod, enters in the pressure container and works, thereby can open this one or more holes on valve rod, makes the material can be by this one or more holes from pressure container flows into valve rod and inflow syringe cavity.
In another embodiment, the present invention includes a kind of method, wherein, distributing these the one or more holes on the valve rod to be positioned on the distribution valve rod circumference on every side, and by slidably gasket seal covering.When distributing valve rod inwardly can reciprocally move, when entering in the pressure container, these one or more holes are opened by the sealing pad, and material can be flowed in these one or more holes.
In another embodiment, the present invention includes a kind of method, wherein, the pressure container of the material that maintenance will distribute is the dispense container that comprises the pressurization of a pressure container.The bag that the material that a dress will distribute is arranged in this pressure container.Described bag is connected with distributing valve with the fluid flowing Relationship, and described bag is by the pressed gas in this container-be preferably argon or nitrogen encirclement, thereby when this distributing valve was worked, pressed gas forced material from this bag, by distributing valve and enter in the syringe cavity.
In another embodiment, the present invention includes a kind of method, wherein, this bag is connected with distributing valve by valve union.This valve union has a centre hole, makes material can flow out this bag.Distribute valve rod to be seated in this valve union with bias state on the direction outside from this pressure container, can prevent before distributing valve work, material flows out by this valve rod.
In another embodiment, the present invention includes a kind of method, wherein, distribute valve rod to be seated on the biasing spring in the valve union, and the work of distributing valve is shunk this biasing spring, can allow to distribute valve rod more to enter in the pressure container, open the sealing pad from the one or more holes on the circumference of this bar.
In another embodiment, the present invention includes a kind of method, wherein, this adapter comprises by two recesses of center material flow channel bonded assembly in adapter.Be connected with the end of syringe stem by a recess is connected with another recess with the far-end that distributes valve rod, this adapter is connected with two bars.
In another embodiment, the present invention includes a kind of method, wherein, the material that distribute is super dry solvent.
In another embodiment, the present invention includes a kind of method, this method has when this locking piece during at open position, then replaces syringe stem with pin, make this locking piece in logical position work then, and material is expelled to additional step enclosed reaction vessel or the container from syringe cavity.
In another embodiment, the present invention includes a kind of method, wherein, the reciprocating syringe piston of this material use is discharged from syringe cavity.
Description of drawings
Utilize the embodiments of the invention shown in the figure, but be not to be limited to this embodiment the present invention is described.
Wherein:
The decomposition diagram that Fig. 1 cuts open for the part of device of the present invention or system;
Fig. 2 is the enlarged drawing of the part of device shown in Figure 1 or system;
Fig. 3 is for preparing from the device that assembles of pressure container dispensing materials or the figure of system;
Fig. 4 cuts open for part, the device that assembles shown in Figure 3 of the relative position of expression part or the figure of system;
Fig. 5 is expression valve work, makes the enlarged drawing of the part of the device that assembles shown in Fig. 3 and 4 of material outflow pressure container or system; With
Fig. 6 is the figure of explanation device, and expression is distributed the material that enters in the syringe cavity how can distribute from syringe by device of the present invention.
The specific embodiment
The present invention is by the explanation of following the preferred embodiments of the present invention, but is not to only limit to the preferred embodiment.Especially as illustrated in fig. 1 and 2, system or install 10 and comprise the material that dress will distribute, the pressure container 12 of particularly super dry solvent material.Though, in device of the present invention and system, can use any suitable pressure container, preferably use the dispense container of pressurization.One bag material is arranged, by in this container rather than the suitable pressed gas that comprises in this bag pressurization in this container.In US Patent 5035351,5040704, this pressurization distribution pouch has been described in 5137186 and No. 5169037.Its explanation here is incorporated herein by reference.As shown in Figure 1, pressure container 12 has the bag 14 of a package material of inside decoration material 16.The outside of bag 14 is surrounded by the pressed gas in the container 12 18.In one embodiment, enter in the bag and contaminated materials 16, in the wall and the space between the bag 14 of pressure container 12, promptly in the space that is occupied by pressed gas 18, can put into any suitable desiccant material 58 in order to prevent the moisture in container.Can use any suitable form, for example any suitable desiccant of powder or packaged form.Best, desiccant is a packaged form, and comprises the silica dioxide gel or the molecular sieve desiccant of packing, for example the Minipax of the Sigma-Aldrich company in the St.Louis city in MO state sale
The Natrasorb that the Multisorb Technologies company in desiccant bag and Buffalo city, NY state sells
The desiccant bag.The bag of the material 16 that dress will distribute is 14 by distributing valve assembly 20, by valve union 22 sealings, this valve union suitably with the bag sealing, and have a central opening 24 of interspersed this valve union.A reciprocating action hollow, portion or bottom near-end sealing within it is located in the central opening 24 of this valve union 22 to prevent the valve rod 26 that material flows directly into the near-end of valve rod.The closed end of valve rod is arranged in the part of valve union 22, and this part stretches into the inside of container 12, and is seated on the voltage biasing structure 28 such as spring one class.This spring with the far-end of valve rod to container 12 outside bias voltages, and to prevent that the mode that material 16 disperses from working from bag 14.Valve rod 26 has at the central opening 24 that is positioned at pressure container 12 in-to-in valve unions 22, along the locational one or more opening or holes 30 that separate at circumferencial direction of valve rod.As illustrated in fig. 1 and 2, when the outside bias voltage of valve rod 26, the lid or the gasket seal 32 that surround this opening or hole can prevent that material 16 from distributing from container 12 by opening 30.The material 32 of gasket seal can be for not having deletrious any suitable material to the material that is stored in the bag 14.An example as the material of this suitable gasket seal can be enumerated the Ohio state, the Buckeye Rubber﹠amp of Cleveland portion; The Gasket CS05-0310-51 of Packing Co..Should understand, the material of gasket seal is according to the comformability that is contained in the material 16 in the bag 14 is selected.
Device of the present invention or system 10 also comprise an adapter 34, and it has the central aisle 36 by this adapter, thereby and form recess 38,40 at each end of this adapter, be used for like that as described later, hold protruding part.Adapter 34 can be any suitable size or the shape that is fit to expect use, and by making with any material of material 16 compatibilities that will distribute.
Device of the present invention or system 10 also comprise a syringe 24, and it has a center cavity 44, and have hermetically from these chamber 44 outwardly directed reciprocating piston pieces 46 at the one end, have on/off mechanism or locking piece 48 at the other end.Hollow stem or conduit 50 are protruding from locking piece 48, are used to receive from container 12 enter the material 16 of syringe cavity 44 and enter reactor or reaction vessel from the syringe cavity dispensing materials.Locking piece 48 can be Luer Lock mechanism or any other suitable on/off mechanism.Shown in Fig. 1,3,4 and 6, locking piece 48 has a rotating handle 52, and by suitable location, this handle can prevent or allow material to pass through bar 50 inflows or flow out syringe cavity 44.
Shown in Fig. 3 and 4, in order to use device of the present invention or system, can seal by the recess 38 and 40 of respectively bar that protrudes being put into adapter, adapter 34 is connected with the bar 50 that stretches out from syringe 42 with the valve rod 26 of container 12.
When the bag of hope from container 12 during 14 dispensing materials 16, after connecting syringe stem 50 and container bar 26 with adapter 34, can moving downward by syringe 42, downward pressure is added on the biasing device 28, bar 26 is further entered in the central opening 24 of valve union 22, as shown in Figure 5.When bar 26 moves downward, when being compressed in the biasing spring 28 in the central opening 24, gasket seal 32 remains on transfixion on the upper end 23 of valve union 22, thereby the opening 30 that will be covered by gasket seal in advance exposes.When opening opening or hole 30, the pressed gas 18 in the container 12 makes material 16 flow out bag 14; And,, flow in the hollow stem 26 again by hole or opening 30 by central opening 24; By adapter 34,, when the handle 52 with locking piece 48 is placed on logical (opening) position, flow in the syringe cavity 44 again again by bar 50.In case material in syringe cavity 44 after, the handle 52 of locking piece 48 can be gone to disconnected (closing) position, to be isolated in the material 16 in the chamber.
When hope distributes the material 16 that remains in now in the syringe cavity 44, can from the recess 38 of adapter, take out syringe stem 50 as shown in Figure 6, and replace this bar with syringe needle 54.This pin is placed in enclosed reaction vessel or the container (not shown), handle 52 is gone to logical (opening) position, and the appropriate exercise by syringe piston 46, discharge the material of desired amount, can be from syringe cavity 44 dispensing materials 16.
The present invention is applicable especially to keep the original position and the purity of material and avoids being exposed in the atmosphere or under the condition in other polluting devices at needs, distributes in the apparatus and method of material of the super dry solvent that will distribute that comprises less amount.The amount of being somebody's turn to do super dry solvent is approximately 200mL or littler, particularly about 100mL or littler, especially approximately 10mL～about 20mL.The example of this solvent material includes, but are not limited to acetone, acetonitrile, absolute ethyl alcohol, two (2-methoxy ethyl) ether, chlorobenzene, methenyl choloride, cyclohexane, Dimethyl fomamide, dimethyl sulfoxide (DMSO), ethyl acetate, ether, hexane, methyl tertiary butyl ether(MTBE), methylene chloride, methyl ethyl ketone, tetrahydrofuran, toluene, dimethylbenzene etc.
Though the present invention has been described with reference to specific embodiment, should be understood that and under the condition of the spirit and scope that do not depart from described inventive concept, can do various changes, improve and variation.Therefore, comprise this change of all in the spirit and scope of appended claims, improve and variation.
Claims (29)
1. one kind is used for storing and from the pressure container dispensing materials, keeps simultaneously wanting the original position of dispensing materials or the device of purity, and this device comprises:
A) keep wanting the pressure container of dispensing materials, this pressure container has and has the distributing valve that distributes valve rod, and the far-end of this valve rod is given prominence to from pressure container, and its near-end stretches in the pressure container;
B) syringe, it has 1) the on/off locking piece, be used for allowing/or prevent that material from flowing into or the outflow syringe cavity; With 2) bar, the one end stretches out from syringe, is used to receive the material that comes from pressure container; With
C) removable adapter, it will be connected with the end of the bar that stretches out from syringe from the far-end of the outstanding distribution valve rod of pressure container, to set up the flow channel from a bar to the permission of another bar;
Make that when the on/off locking piece is worked in logical position when allowing material inflow syringe and distributing valve to work, material can flow to syringe cavity from pressure container under allocation model.
2. device as claimed in claim 1 is characterized by, and this distributing valve comprises reciprocating valve.
3. device as claimed in claim 2, it is characterized by, the valve rod of distributing valve is hollow, but the near-end in container is an osed top, and has the hole of one or more coverings along this bar, and this valve rod can inwardly can reciprocally be moved into pressure container, to open the one or more holes on valve rod, can be with the permission material from pressure container, by these one or more holes, in the inflow valve rod and in the inflow syringe cavity.
4. device as claimed in claim 3 is characterized by, and is distributing the one or more holes on the valve rod to be positioned on the distribution valve rod circumference on every side, and sealed pad covers, until distributing valve rod reciprocally inwardly to move, enter in the pressure container, open till these one or more holes.
5. device as claimed in claim 4 is characterized by, and the sealing pad is to surround a material annulus that distributes valve rod with sliding mode.
6. device as claimed in claim 1, it is characterized by, keeping wanting the pressure container of dispensing materials is the pressurised dispensing containers that comprises a pressure container, this pressure container has the bag of the material that a dress will distribute, described bag is connected with distributing valve with the fluid flowing Relationship, and described bag is surrounded by the pressed gas in the container.
7. device as claimed in claim 5, it is characterized by, keeping wanting the pressure container of dispensing materials is the pressurised dispensing containers that comprises a pressure container, the bag that the material that a dress will distribute is arranged in this pressure container, described bag is connected with distributing valve with the fluid flowing Relationship, and described bag is surrounded by the pressed gas in the container.
8. device as claimed in claim 7, it is characterized by, this bag is connected with distributing valve by valve union, this valve union has a centre hole, can make material flow out this bag, distribute valve rod on the direction outside, to be seated in this valve union, to prevent that material flows out by valve rod before distributing valve work with bias state from pressure container.
9. device as claimed in claim 8 is characterized by, and distributes valve rod to be seated on the biasing spring in the valve union.
10. device as claimed in claim 1, it is characterized by, this adapter comprises two by the center material flow channel bonded assembly recess in this adapter, a recess is connected with the far-end that distributes valve rod, another recess is connected with the end of syringe stem, to allow material to flow to syringe stem from distributing valve rod, make material to flow to syringe cavity from pressure container, can not be exposed in the atmosphere.
11. device as claimed in claim 8, it is characterized by, this adapter comprises two by material flow channel bonded assembly recess, a recess is connected with the far-end that distributes valve rod, another recess is connected with the end of syringe stem, to allow material to flow to syringe stem, make material to flow to syringe cavity from pressure container from distributing valve rod.
12. device as claimed in claim 11 is characterized by, and is Luer Lock at the on/off locking piece of syringe.
13. device as claimed in claim 12 is characterized by, at the end of the syringe relative with syringe stem, this syringe has from the outwardly directed reciprocating piston of syringe cavity.
14. device as claimed in claim 6 is characterized by, and places desiccant material in the pressed gas that surrounds this bag.
15. device as claimed in claim 7 is characterized by, and places desiccant material in the pressed gas that surrounds this bag.
16. one kind is used for from pressure container storage and dispensing materials, keeps simultaneously wanting the original position of dispensing materials or the method for purity, this method comprises:
A) pressure container that provides maintenance to want dispensing materials, this pressure container have and have the distributing valve that distributes valve rod, and the far-end of this valve rod is outstanding from pressure container, and its near-end stretches in the pressure container;
B) provide syringe, it has 1) the on/off locking piece, be used for allowing/or prevent that material from flowing into or the outflow syringe cavity; With 2) bar, the one end stretches out from syringe, is used to receive the material that comes from pressure container; With
C) provide removable adapter, it will be connected with the end of the bar that stretches out from syringe from the far-end of the outstanding distribution valve rod of pressure container, to set up the flow channel from a bar to the permission of another bar;
D) make adapter and be connected from the far-end of the outstanding distribution valve rod of pressure container and the end of the bar that stretches out from syringe;
E) make the on/off locking piece in logical position work, flow in the syringe to allow material;
F) distributing valve is worked under allocation model, flow to syringe cavity from pressure container to allow material; With
G) make the on/off locking piece in open position work, the material in the syringe cavity is isolated.
17. method as claimed in claim 16 comprises then replacing syringe stem with pin, makes the on/off locking piece in logical position work, and material is expelled to the additional step of the bounded system of using this material from syringe cavity.
18. method as claimed in claim 17 is characterized by, but distributing valve comprises the crank motion valve.
19. method as claimed in claim 18, it is characterized by, the valve rod of distributing valve is hollow, but the sealing of the near-end in container, and have a hole of one or more coverings along this bar, this valve is driven by valve rod inwardly can reciprocally be moved into pressure container, thereby opens the one or more holes on valve rod, and allows material to go into valve rod and enter the syringe cavity by these one or more orifice flows from pressure container.
20. method as claimed in claim 19 is characterized by, and distributes one or more holes on the valve rod to be positioned to distribute around the valve rod on the circumference, and is covered by gasket seal slidably; When distributing valve rod inwardly can reciprocally move, when entering in the pressure container, this sealed pad in one or more holes is opened, and material can be flowed in these one or more holes.
21. method as claimed in claim 20, it is characterized by, keeping wanting the pressure container of dispensing materials is the pressurised dispensing containers that comprises a pressure container, this pressure container has the bag of the material that a dress will distribute, described bag is connected with distributing valve with the fluid flowing Relationship, and described bag by the encirclement of the pressed gas in the container, thereby when distributing valve is worked, pressed gas forces material from this bag, flows in the syringe cavity by distributing valve.
22. method as claimed in claim 21, it is characterized by, this bag is connected with distributing valve by valve union, this valve union has a centre hole, can make material flow out this bag, distribute valve rod on the direction outside, to be seated in this valve union, to prevent that material flows out by valve rod before distributing valve work with bias state from pressure container.
23. method as claimed in claim 22, it is characterized by, distribute valve rod to be seated on the biasing spring in the valve union, and the work of distributing valve is shunk biasing spring, to allow distributing valve rod further to enter in the pressure container, open the gasket seal in the one or more holes on the circumference around this bar.
24. method as claimed in claim 22, it is characterized by, this adapter comprises two by the center material flow channel bonded assembly recess in this adapter, and by a recess is connected with the far-end that distributes valve rod, another recess is connected with the end of syringe stem, and this adapter is connected with two bars.
25. method as claimed in claim 24 is characterized by, the material that distribute is super dry solvent.
26. method as claimed in claim 16 is characterized by, the material that distribute is super dry solvent.
27. method as claimed in claim 16 comprises when locking piece then replacing syringe stem with pin during at open position, makes this locking piece in logical position work then, and material is expelled to additional step enclosed reaction vessel or the container from syringe cavity.
28. method as claimed in claim 27 is characterized by, the reciprocating syringe piston of this material use is discharged from syringe cavity.
29. method as claimed in claim 19 is characterized by, and places desiccant material in pressed gas, and absorbs the moisture in the container.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58566304P | 2004-07-06 | 2004-07-06 | |
| US60/585,663 | 2004-07-06 | ||
| US60/621,030 | 2004-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101018718A true CN101018718A (en) | 2007-08-15 |
Family
ID=38727187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580022961 Pending CN101018718A (en) | 2004-07-06 | 2005-06-15 | Apparatus and method for dispensing high purity materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101018718A (en) |
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2005
- 2005-06-15 CN CN 200580022961 patent/CN101018718A/en active Pending
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Open date: 20070815 |