CA2039719A1 - Device for extracting fluid or gaseous media supplied in containers like plastic compounds miscible in components and the like - Google Patents
Device for extracting fluid or gaseous media supplied in containers like plastic compounds miscible in components and the likeInfo
- Publication number
- CA2039719A1 CA2039719A1 CA002039719A CA2039719A CA2039719A1 CA 2039719 A1 CA2039719 A1 CA 2039719A1 CA 002039719 A CA002039719 A CA 002039719A CA 2039719 A CA2039719 A CA 2039719A CA 2039719 A1 CA2039719 A1 CA 2039719A1
- Authority
- CA
- Canada
- Prior art keywords
- sleeves
- discharge nozzle
- container
- seal
- cuff
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
Abstract
Abstract The invention relates to a device (1) for discharging liquid or gaseous materials supplied in containers (3,4), which can be connected between discharge nozzle (13) of the container and a line (7,8) for transferring the medium to a processing apparatus (5), wherein the unwanted egress of medium into the open is prevented and pressure build-up inside the transfer system will be accommodated by changes in volume inside the device.
Fig. 3 can also be used for the abstract.
Fig. 3 can also be used for the abstract.
Description
Device for facilitating the discharge of liquid or gaseous media, such as miscible plastic components, from containers used for their transportation.
The invention relates to a device for discharging liquid or gaseous media, such as miscible plastic components and the like, from especially bucket-shaped containers that are provided with a hermetically-sealing cover and a bottom in which is installed a closeable discharge nozzle that both serves the discharge of medium and is designed to couple to at least one line that serves to transfer to a further processing phase any medium destined for further processing.
It is generally known to store and transport various fluids or gases in containers and to discharge such fluids, or gases in order to transfer them to further processing phases. Such fluid materials include plastics, paints, solvents or emulsions of various compositions. The gaseous materials include frigene, phenols and other gaseous products. Most of such liquids or gases can be mordant; of these, some can be poisonous or otherwise harmful both to humans and the environment and they can even provoke violent reactions that could have disastrous consequences, especially if introduced to atmospheric oxygen. Conventional methods of decreasing the likelihood of such events as much as possible involve storing such fluid products under seal and transporting them in containers that can be sealed so as to prevent the unwanted escape of components of their fluid contents into the environment. Although these media are stored and transported in such containers, often they cannot be prevented, during either discharge of the media or transferral to further processing operations, especially in filling other apparatus, from escaping in significant quantities to the outside and from posing a threat to both humans and the environment.
Use of materials such as liquid plastics of the type often used in moulding processes and intended to be mixed with measured quantities of other synthetic materials, makes it desirable to supply the materials for mixing without the incursion of atmospheric oxygen or other gases, which is not possible when using prior art containers. The same would apply to the handling of gaseous media which sometimes react uncontrollably in the presence of atmospheric oxygen.
The object of the present invention is therefore to improve a prior art device of the type described above so as to prevent, both during transport of a given medium inside a container, and during transfer of such medium to further processing apparatus, the unintended release to the outside of any components of such medium; furthermore, the container is always reusable, such repeated use obviating the need tor its disposal, while the container assures maximal structural stability and safety.
The object is achieved in a device of the type first mentioned, which can be connected between the discharge nozzle and the transfer line and comprises two sleeves that can be slid telescopically one into the other, whereof one can be connected to the discharge nozzle and the other to the transfer line; and each sleeve can be herme-tically sealed at its corresponding coupling with either discharge nozzle or transfer line.
Such measures not only advantageously satisfy the objects of the present invention but afford additional advantages. Thus, it is possible for axial expansion of the fluid capacity inside the device, which connects the discharge nozzle of the container to the line leading to further processing, to create inside such device a space that is large enough to accommodate the volume of fluid occupying the discharge nozzle; so that the volume of fluid held inside the discharge nozzle is enabled to flow into the proposed device and thence into the line leading to further processing without part of such fluid escaping to the outside. This volumetric expansion of the 2 5 liquid or gaseou~ medium held inside the discharge nozzle produces a vacuum effect inside the region situated between the container at one end and the transfer line at the other end, which also helps the fluid flow in the intended direction. Moreover, the device is so simple to connect to the discharge nozzle that the arrangement permits full automation of the coupling and decoupling procedures, especially in the case of larger containers; for example, in such a way that when the discharge nozzle is lowered into the open mouth of the device, the valve closing the nozzle opens automatically, and withdrawal of the discharge nozzle from the mouth of the device closes the valve automatically.
Another advantage of this device resides in its use as a æimply-constructed adaptor that can be installed without major modification to containers of different configurations. Use of the proposed device furthermore saves significant quantities of medium since the medium is prevented from escaping into the atmosphere there to combine with either atmospheric oxygen or other substances and lose its utility. This leakage-free movement of the media from their respective transport containers into the transfer line affords the further advantage that often hostile media cannot escape to the environment during the discharge operation to either damage other equipment being used in the area or cause explosions, among other things. Use of the device to extract a given medium from its container has the further advantage that the transport container can be designed for multiple use, which makes it very cost-effective in view of, on the one hand, elimination of the need for its disposal and use for transporting precious metals.
According to one advantageous embodiment of the device the sleeves, which can be slid telescopically one into the other, are also arranged concentrically and sealed relative to each other by means of at least one seal.
The sealing of the telescopically-sliding sleeves to one another ensures that no medium will be able to leak out of the device, thereby ensuring the maintenance of a leak-free channel extending from the container through the device to the transfer line.
A further advantageous embodiment of the present invention comprises a transport seal that is provided with bayonet-shaped slots that are designed to engage the bayonet-shaped locking means located on the discharge nozzle and this transport seal is cup-shaped and is designed to close hermetically over the free end of the discharge nozzle.
Such use of the transport seal ensures that, during transportation and storage of a given medium, none of the medium will be able to escape from the discharge nozzle and possibly cause damage or other problems.
In further embodiments of the device developing this feature, the transport seal is cup-shaped and can be filled with a sealing liquid into which the free end of the discharge nozzle can be immersed at least partially.
The advantage of this improvement is that any small amounts of the medium likely to escape from the discharge noæzle would be retained inside the transport seal and if such transported material were to comprise material susceptible to hardening, then such material, rather than hardening inside the safety device, could be further processed together with the rest of the medium leaving the container.
Further advantageous embodiments of the device according to the invention can be derived particularly from the subsidiary claims.
Schematically illustrated in the attached drawing is an example of one configuration of the device; it shows Fig. 1 a view of a dosing apparatus comprising two containers containing different media, used in this case to store the different components of a plastic mixture, and the proposed device, wherein one container is shown in longitudinal section;
Fig. 2 a plan view of the dosing apparatus shown in Fig. 1;
Fig. 3 an exploded longitudinal cross section through the proposed device, showing the coupling points to the container and to the line leading to further processing phases;
Fig. 4 a view of a transport seal as disposed for coupling to the free end of the discharge nozzle, which in this case, however, is rotated 90 relative to the device shown in Fig. 3;
Fig. 5 a plan view of the transport seal shown in Fig. 4.
The device 1 according to the invention is shown and described for example for use in conjunction with a dosing apparatus for two plastics components that are to be mixed together. This does not, of course, preclude use of device 1 for other applications in which the media being transferred from a reservoir 3,4 to an external apparatus 5 for further processing, must be prevented from leaking to the exterior.
Dosing apparatus 2, which, in the present configuration, has been designed to hold two different plastic materials, comprises containers 3,4 that are mounted upon a support structure 6, which can, for example, be a table plate; container 3 holds one plastic component while container 4 holds the other plastic component. Provided between each of containers 3,4 and an outlet point for the respective medium are transfer lines 7,8 and pumps 9,10 serving to transfer the plastic media through such lines. Depending on the viscosity of the material or on the expulsion pressure required, such pumps can be high pressure pumps. Each of containers 3,4 which can, for example, be of cylindrical shape, comprises a preferably funnel-shaped bottom 11, which features, at its lowest point, an opening 12 for connection of a discharge nozzle 13. The discharge nozzle 13 is sealed into opening 12, for example by screwing, and comprises between its free projecting end and bottom 11 of container 3,4 a shut off valve 14, in this case embodied as a ball valve, which acts to shut off discharge nozzle 13.
The end of reservoir 3,4 away from bottom 11 is hermetically sealed by means of a cover 15, through which extends a driven shaft 16 of a drive motor 18 that acts to rotate an agitator 17. The agitator 17, which can comprise scraper blades, is conformed to the contour of bottom 11, an arrangement that helps convey the plastic material held in the container to opening 12 located in bottom 11 and thence into discharge nozzle 13.
Proposed device 1 comprises two sleeves 19,20 that are arranged concentrically one inside the other and designed to slide telescopically relative to one another, whereof outer sleeve 19, at its end facing discharge nozzle 13, connects to a locking element 21, by means of which such sleeve and thus also the proposed device are able to couple with a locking means 22 of the discharge nozzle. The other, i.e. the inner sleeve 20, is able to slide within outer sleeve 19, and the two sleeves are sealed to each other by means of at least one seal 23. Preferably inner sleeve 20, at its extremity that is oriented away from locking element 21, has a thread 24 enabling such extremity to be screwed to the threaded hose coupling 25 of a transfer line 7 or 8. The transfer line 7,8 can, in the present configuration, be embodied as a pipe or hose, via which containers 3, 4 are able to connect to appropriate feed pump 9 or 10 for pumping the medium.
At its upper end, inner sleeve 20 is supported against outer sleeve 19 by means of seal 23 on an annular enlargement 26 of inner sleeve 20. At its other end, adjacent line 7 or 8, inner sleeve 20 is further supported against outer sleeve 19 a cup-shaped cuff 27. This cuff 27, which also is cylindrical, surrounds a second cuff 28, that is arranged concentrically around inner sleeve 20. Cuff 28 may slide upon inner sleeve 20, but is fixedly attached to outer sleeve 19. Outer cuff 27, which concentrically surrounds inner sleeve 20, is fixed by its base to the inner sleeve with the aid of securing rings 29 which are fitted, coaxially to the base of outer cuff 27, in grooves 30 in sleeve 20. These securing rings 29 prevent the outer cuff 27 from sliding in the axial direction, while 1 5 permitting it to move freely in the rotational direction.
In order to set the stroke of inner sleeve 20 inside outer sleeve 19, at least one set screw 31 provided, identical to bayonet coupling pin 22.
Screw 31 is mounted upon inner, second cuff 28 and extends through outer cuff 28 in a bayonet slot. The outer cuff 28, being rotatable, can be released by twisting it to disengage the screw 31. The outer cuff 28, and with it the inner sleeve 19, can then travel downwards. In this simple way, the stroke of inner sleeve 20 can be adjusted in such a way that a volume space is created inside sleeve 19 whenever inner sleeve 20 is withdrawn from surrounding outer sleeve 19. The length of travel of inner sleeve 20 inside outer sleeve 19, and thus the length of the volume space itself, can be adjusted to the quantity of medium confined between the free end of discharge nozzle 13 and valve 14. In this way a so-called expansion cavity is provided for the medium so that it cannot escape out of the coupling located between discharge nozzle 13 and transfer lines 7,8.
Hence, whenever transport seal 32 is removed and discharge nozzle 13 coupled to device 1, any medium confined inside discharge nozzle 13 flows immediately into the device, without any medium escaping partially or entirely from the coupling joint located between discharge nozzle 13 and device 1 and/or between device 1 and lines 7,8.
In order to adapt discharge nozzle 13 to fit inside the open mouth of device 1 so as to prevent leakage, the free end of the discharge nozzle is fitted with a seal 33, for example in the form of a cone, and the mouth of outer sleeve 19 of device 1 is provided with a recess 34 whose shape complements this cone-shaped seal. A coupling element, i.e. a locking element 21, which serves to connect device 1 to discharge nozzle 13, is fixedly secured to the face of outer sleeve 19 by means of screws 35 and comprises on its surface bayonet-shaped slots 36 that engage positively around the locking pins 22 of discharge nozzle 13. This secures the first connection of proposed device 1 to discharge nozzle 13. The other connection of device 1, which is to transfer line 7 or 8, can be effected 1 0 by means of a bayonet lock or, as indicated in the figure, by means of threaded hose coupling 25.
Proposed device 1 can be operated very simply and safely by unskilled personnel, for the most part also without the use of special equipment.
Transport seal 32, which can be used intermittently, comprises a substantially cup-shaped cap, on the surface of which are likewise disposed bayonet-shaped slots 36, which, during capping of discharge nozzle 13, lock over locking means 22. In situations where the transported medium could encrust, e.g. by contact with atmospheric oxygen, transport seal 32 can be filled with a quantity of liquid that is sufficient to cover the free end of discharge nozzle 13 at least up to the height of its seal 33. Transport seal 32 can be secured against unintentional opening by means of a cam 37 which, if suitably rotated, acts positively with its working surface against locking means 22 of discharge nozzle 13. Cam 37 can itself be actuated by means of a lever 38 and a lock 39 may also be provided to secure such lever against unintentional rotation.
When device 1 is used in conjunction with a dosing apparatus as disclosed in the attached drawing, the device can be installed, for example, on the support 6 in such a way that respective container 3 or 4 can be lowered onto the device, during which procedure the free end of discharge nozzle 13 engages positively inside the open mouth of outer sleeve 19 with the aid of conical seal 33 of discharge nozzle 13. Once this connection of discharge nozzle 13 and outer sleeve 19 has been made, locking element 21 can be coupled to the discharge nozzle and at this moment, at the latest, the inner sleeve 20 can be lowered so far in outer sleeve 19 that the h required volume can be released to accommodate the quantity of medium confined inside discharge nozzle 13.
The procedure for withdrawing container and nozzle from device 1 is analogous to that whereby container 3, 4, together with nozzle 13, were first lowered onto the device; in the withdrawal procedure, however, discharge nozzle 13 protrudes from device 1.
In cases where the transport seal is used it is also necessary to remove it prior to discharge of the medium, or place it over the discharge nozzle 13 for further use of the container 3, 4.
For processing of the medium it is pumped by means of a pump 9 or 10, advantageously a high-pressure pump, to a processing apparatus 5, which, in the case of synthetic materials might be a mould, and in the case of gaseous materials a blowing apparatus or other suitable equipment. Mixing of the material with other components can take place inside a variety of suitable prior art processing apparatuses.
Device 1 is suitable for use wherever materials that are particularly aggressive and/or harmful to humans and the environment are to be processed. This can be in connection with the processing of synthetic materials such as are used in modelling or industrial processes, in lacquering and other equipment, and in other practical applications, a particular example of which are commercial filling processes.
In order to remove media, particularly when pasty masses, as completely as possible from the container, the latter can be provided with stirring implement 16 to 18, whose blades conform to the bottom 11 of such container and whose rotation is powered by driven shaft 16 of a motor 18.
In cases where the fill level of container 3 or 4 is to be displayed externally, a fill-level monitor 40 can be installed in the region of the bottom of the container. This monitor might comprise a pressure-sensitive sensor of the kind commercially available for analogous applications. In addition, cover 15 of container 3 and/or 4 can be fitted with a ventilation valve 41 for the purpose of facilitating discharge from the container of the medium, which often is not stored under pressure.
List/References 1) Device 33) Seal 2) Dosing apparatus 34) Recess 3) Container 35) Screws 4) Container 36) Bayonet-shaped slots 5) External apparatus 37) Cam 6) Support structure 38) Lever 7) Transfer line 39) Lock 8) Transfer line 40) Fill level monitor 9) Pump 41) Ventilation valve 10) Pump 11) Bottom of container 3,4 12) Opening 13) Discharge nozzle 14 ) Valve 15~ Cover 16) Driven shaft 17) Agitator 18) Drive motor 19) Outer sleeve 20) Inner sleeve 21) Locking element 22) Locking means 23) Seal 24) Thread 25) Threaded hose coupling 26) Annulus 27) Outer cuff 28) Inner cuff 29) Securing ring 30) Groove 31) Set screw 32) Transport seal
The invention relates to a device for discharging liquid or gaseous media, such as miscible plastic components and the like, from especially bucket-shaped containers that are provided with a hermetically-sealing cover and a bottom in which is installed a closeable discharge nozzle that both serves the discharge of medium and is designed to couple to at least one line that serves to transfer to a further processing phase any medium destined for further processing.
It is generally known to store and transport various fluids or gases in containers and to discharge such fluids, or gases in order to transfer them to further processing phases. Such fluid materials include plastics, paints, solvents or emulsions of various compositions. The gaseous materials include frigene, phenols and other gaseous products. Most of such liquids or gases can be mordant; of these, some can be poisonous or otherwise harmful both to humans and the environment and they can even provoke violent reactions that could have disastrous consequences, especially if introduced to atmospheric oxygen. Conventional methods of decreasing the likelihood of such events as much as possible involve storing such fluid products under seal and transporting them in containers that can be sealed so as to prevent the unwanted escape of components of their fluid contents into the environment. Although these media are stored and transported in such containers, often they cannot be prevented, during either discharge of the media or transferral to further processing operations, especially in filling other apparatus, from escaping in significant quantities to the outside and from posing a threat to both humans and the environment.
Use of materials such as liquid plastics of the type often used in moulding processes and intended to be mixed with measured quantities of other synthetic materials, makes it desirable to supply the materials for mixing without the incursion of atmospheric oxygen or other gases, which is not possible when using prior art containers. The same would apply to the handling of gaseous media which sometimes react uncontrollably in the presence of atmospheric oxygen.
The object of the present invention is therefore to improve a prior art device of the type described above so as to prevent, both during transport of a given medium inside a container, and during transfer of such medium to further processing apparatus, the unintended release to the outside of any components of such medium; furthermore, the container is always reusable, such repeated use obviating the need tor its disposal, while the container assures maximal structural stability and safety.
The object is achieved in a device of the type first mentioned, which can be connected between the discharge nozzle and the transfer line and comprises two sleeves that can be slid telescopically one into the other, whereof one can be connected to the discharge nozzle and the other to the transfer line; and each sleeve can be herme-tically sealed at its corresponding coupling with either discharge nozzle or transfer line.
Such measures not only advantageously satisfy the objects of the present invention but afford additional advantages. Thus, it is possible for axial expansion of the fluid capacity inside the device, which connects the discharge nozzle of the container to the line leading to further processing, to create inside such device a space that is large enough to accommodate the volume of fluid occupying the discharge nozzle; so that the volume of fluid held inside the discharge nozzle is enabled to flow into the proposed device and thence into the line leading to further processing without part of such fluid escaping to the outside. This volumetric expansion of the 2 5 liquid or gaseou~ medium held inside the discharge nozzle produces a vacuum effect inside the region situated between the container at one end and the transfer line at the other end, which also helps the fluid flow in the intended direction. Moreover, the device is so simple to connect to the discharge nozzle that the arrangement permits full automation of the coupling and decoupling procedures, especially in the case of larger containers; for example, in such a way that when the discharge nozzle is lowered into the open mouth of the device, the valve closing the nozzle opens automatically, and withdrawal of the discharge nozzle from the mouth of the device closes the valve automatically.
Another advantage of this device resides in its use as a æimply-constructed adaptor that can be installed without major modification to containers of different configurations. Use of the proposed device furthermore saves significant quantities of medium since the medium is prevented from escaping into the atmosphere there to combine with either atmospheric oxygen or other substances and lose its utility. This leakage-free movement of the media from their respective transport containers into the transfer line affords the further advantage that often hostile media cannot escape to the environment during the discharge operation to either damage other equipment being used in the area or cause explosions, among other things. Use of the device to extract a given medium from its container has the further advantage that the transport container can be designed for multiple use, which makes it very cost-effective in view of, on the one hand, elimination of the need for its disposal and use for transporting precious metals.
According to one advantageous embodiment of the device the sleeves, which can be slid telescopically one into the other, are also arranged concentrically and sealed relative to each other by means of at least one seal.
The sealing of the telescopically-sliding sleeves to one another ensures that no medium will be able to leak out of the device, thereby ensuring the maintenance of a leak-free channel extending from the container through the device to the transfer line.
A further advantageous embodiment of the present invention comprises a transport seal that is provided with bayonet-shaped slots that are designed to engage the bayonet-shaped locking means located on the discharge nozzle and this transport seal is cup-shaped and is designed to close hermetically over the free end of the discharge nozzle.
Such use of the transport seal ensures that, during transportation and storage of a given medium, none of the medium will be able to escape from the discharge nozzle and possibly cause damage or other problems.
In further embodiments of the device developing this feature, the transport seal is cup-shaped and can be filled with a sealing liquid into which the free end of the discharge nozzle can be immersed at least partially.
The advantage of this improvement is that any small amounts of the medium likely to escape from the discharge noæzle would be retained inside the transport seal and if such transported material were to comprise material susceptible to hardening, then such material, rather than hardening inside the safety device, could be further processed together with the rest of the medium leaving the container.
Further advantageous embodiments of the device according to the invention can be derived particularly from the subsidiary claims.
Schematically illustrated in the attached drawing is an example of one configuration of the device; it shows Fig. 1 a view of a dosing apparatus comprising two containers containing different media, used in this case to store the different components of a plastic mixture, and the proposed device, wherein one container is shown in longitudinal section;
Fig. 2 a plan view of the dosing apparatus shown in Fig. 1;
Fig. 3 an exploded longitudinal cross section through the proposed device, showing the coupling points to the container and to the line leading to further processing phases;
Fig. 4 a view of a transport seal as disposed for coupling to the free end of the discharge nozzle, which in this case, however, is rotated 90 relative to the device shown in Fig. 3;
Fig. 5 a plan view of the transport seal shown in Fig. 4.
The device 1 according to the invention is shown and described for example for use in conjunction with a dosing apparatus for two plastics components that are to be mixed together. This does not, of course, preclude use of device 1 for other applications in which the media being transferred from a reservoir 3,4 to an external apparatus 5 for further processing, must be prevented from leaking to the exterior.
Dosing apparatus 2, which, in the present configuration, has been designed to hold two different plastic materials, comprises containers 3,4 that are mounted upon a support structure 6, which can, for example, be a table plate; container 3 holds one plastic component while container 4 holds the other plastic component. Provided between each of containers 3,4 and an outlet point for the respective medium are transfer lines 7,8 and pumps 9,10 serving to transfer the plastic media through such lines. Depending on the viscosity of the material or on the expulsion pressure required, such pumps can be high pressure pumps. Each of containers 3,4 which can, for example, be of cylindrical shape, comprises a preferably funnel-shaped bottom 11, which features, at its lowest point, an opening 12 for connection of a discharge nozzle 13. The discharge nozzle 13 is sealed into opening 12, for example by screwing, and comprises between its free projecting end and bottom 11 of container 3,4 a shut off valve 14, in this case embodied as a ball valve, which acts to shut off discharge nozzle 13.
The end of reservoir 3,4 away from bottom 11 is hermetically sealed by means of a cover 15, through which extends a driven shaft 16 of a drive motor 18 that acts to rotate an agitator 17. The agitator 17, which can comprise scraper blades, is conformed to the contour of bottom 11, an arrangement that helps convey the plastic material held in the container to opening 12 located in bottom 11 and thence into discharge nozzle 13.
Proposed device 1 comprises two sleeves 19,20 that are arranged concentrically one inside the other and designed to slide telescopically relative to one another, whereof outer sleeve 19, at its end facing discharge nozzle 13, connects to a locking element 21, by means of which such sleeve and thus also the proposed device are able to couple with a locking means 22 of the discharge nozzle. The other, i.e. the inner sleeve 20, is able to slide within outer sleeve 19, and the two sleeves are sealed to each other by means of at least one seal 23. Preferably inner sleeve 20, at its extremity that is oriented away from locking element 21, has a thread 24 enabling such extremity to be screwed to the threaded hose coupling 25 of a transfer line 7 or 8. The transfer line 7,8 can, in the present configuration, be embodied as a pipe or hose, via which containers 3, 4 are able to connect to appropriate feed pump 9 or 10 for pumping the medium.
At its upper end, inner sleeve 20 is supported against outer sleeve 19 by means of seal 23 on an annular enlargement 26 of inner sleeve 20. At its other end, adjacent line 7 or 8, inner sleeve 20 is further supported against outer sleeve 19 a cup-shaped cuff 27. This cuff 27, which also is cylindrical, surrounds a second cuff 28, that is arranged concentrically around inner sleeve 20. Cuff 28 may slide upon inner sleeve 20, but is fixedly attached to outer sleeve 19. Outer cuff 27, which concentrically surrounds inner sleeve 20, is fixed by its base to the inner sleeve with the aid of securing rings 29 which are fitted, coaxially to the base of outer cuff 27, in grooves 30 in sleeve 20. These securing rings 29 prevent the outer cuff 27 from sliding in the axial direction, while 1 5 permitting it to move freely in the rotational direction.
In order to set the stroke of inner sleeve 20 inside outer sleeve 19, at least one set screw 31 provided, identical to bayonet coupling pin 22.
Screw 31 is mounted upon inner, second cuff 28 and extends through outer cuff 28 in a bayonet slot. The outer cuff 28, being rotatable, can be released by twisting it to disengage the screw 31. The outer cuff 28, and with it the inner sleeve 19, can then travel downwards. In this simple way, the stroke of inner sleeve 20 can be adjusted in such a way that a volume space is created inside sleeve 19 whenever inner sleeve 20 is withdrawn from surrounding outer sleeve 19. The length of travel of inner sleeve 20 inside outer sleeve 19, and thus the length of the volume space itself, can be adjusted to the quantity of medium confined between the free end of discharge nozzle 13 and valve 14. In this way a so-called expansion cavity is provided for the medium so that it cannot escape out of the coupling located between discharge nozzle 13 and transfer lines 7,8.
Hence, whenever transport seal 32 is removed and discharge nozzle 13 coupled to device 1, any medium confined inside discharge nozzle 13 flows immediately into the device, without any medium escaping partially or entirely from the coupling joint located between discharge nozzle 13 and device 1 and/or between device 1 and lines 7,8.
In order to adapt discharge nozzle 13 to fit inside the open mouth of device 1 so as to prevent leakage, the free end of the discharge nozzle is fitted with a seal 33, for example in the form of a cone, and the mouth of outer sleeve 19 of device 1 is provided with a recess 34 whose shape complements this cone-shaped seal. A coupling element, i.e. a locking element 21, which serves to connect device 1 to discharge nozzle 13, is fixedly secured to the face of outer sleeve 19 by means of screws 35 and comprises on its surface bayonet-shaped slots 36 that engage positively around the locking pins 22 of discharge nozzle 13. This secures the first connection of proposed device 1 to discharge nozzle 13. The other connection of device 1, which is to transfer line 7 or 8, can be effected 1 0 by means of a bayonet lock or, as indicated in the figure, by means of threaded hose coupling 25.
Proposed device 1 can be operated very simply and safely by unskilled personnel, for the most part also without the use of special equipment.
Transport seal 32, which can be used intermittently, comprises a substantially cup-shaped cap, on the surface of which are likewise disposed bayonet-shaped slots 36, which, during capping of discharge nozzle 13, lock over locking means 22. In situations where the transported medium could encrust, e.g. by contact with atmospheric oxygen, transport seal 32 can be filled with a quantity of liquid that is sufficient to cover the free end of discharge nozzle 13 at least up to the height of its seal 33. Transport seal 32 can be secured against unintentional opening by means of a cam 37 which, if suitably rotated, acts positively with its working surface against locking means 22 of discharge nozzle 13. Cam 37 can itself be actuated by means of a lever 38 and a lock 39 may also be provided to secure such lever against unintentional rotation.
When device 1 is used in conjunction with a dosing apparatus as disclosed in the attached drawing, the device can be installed, for example, on the support 6 in such a way that respective container 3 or 4 can be lowered onto the device, during which procedure the free end of discharge nozzle 13 engages positively inside the open mouth of outer sleeve 19 with the aid of conical seal 33 of discharge nozzle 13. Once this connection of discharge nozzle 13 and outer sleeve 19 has been made, locking element 21 can be coupled to the discharge nozzle and at this moment, at the latest, the inner sleeve 20 can be lowered so far in outer sleeve 19 that the h required volume can be released to accommodate the quantity of medium confined inside discharge nozzle 13.
The procedure for withdrawing container and nozzle from device 1 is analogous to that whereby container 3, 4, together with nozzle 13, were first lowered onto the device; in the withdrawal procedure, however, discharge nozzle 13 protrudes from device 1.
In cases where the transport seal is used it is also necessary to remove it prior to discharge of the medium, or place it over the discharge nozzle 13 for further use of the container 3, 4.
For processing of the medium it is pumped by means of a pump 9 or 10, advantageously a high-pressure pump, to a processing apparatus 5, which, in the case of synthetic materials might be a mould, and in the case of gaseous materials a blowing apparatus or other suitable equipment. Mixing of the material with other components can take place inside a variety of suitable prior art processing apparatuses.
Device 1 is suitable for use wherever materials that are particularly aggressive and/or harmful to humans and the environment are to be processed. This can be in connection with the processing of synthetic materials such as are used in modelling or industrial processes, in lacquering and other equipment, and in other practical applications, a particular example of which are commercial filling processes.
In order to remove media, particularly when pasty masses, as completely as possible from the container, the latter can be provided with stirring implement 16 to 18, whose blades conform to the bottom 11 of such container and whose rotation is powered by driven shaft 16 of a motor 18.
In cases where the fill level of container 3 or 4 is to be displayed externally, a fill-level monitor 40 can be installed in the region of the bottom of the container. This monitor might comprise a pressure-sensitive sensor of the kind commercially available for analogous applications. In addition, cover 15 of container 3 and/or 4 can be fitted with a ventilation valve 41 for the purpose of facilitating discharge from the container of the medium, which often is not stored under pressure.
List/References 1) Device 33) Seal 2) Dosing apparatus 34) Recess 3) Container 35) Screws 4) Container 36) Bayonet-shaped slots 5) External apparatus 37) Cam 6) Support structure 38) Lever 7) Transfer line 39) Lock 8) Transfer line 40) Fill level monitor 9) Pump 41) Ventilation valve 10) Pump 11) Bottom of container 3,4 12) Opening 13) Discharge nozzle 14 ) Valve 15~ Cover 16) Driven shaft 17) Agitator 18) Drive motor 19) Outer sleeve 20) Inner sleeve 21) Locking element 22) Locking means 23) Seal 24) Thread 25) Threaded hose coupling 26) Annulus 27) Outer cuff 28) Inner cuff 29) Securing ring 30) Groove 31) Set screw 32) Transport seal
Claims (22)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for connecting between a discharge nozzle of a closed container and at least one line serving to transfer from said container a liquid or gaseous medium of a group comprising miscible plastic components, said device (1) comprising two sleeves (19,20), said sleeves being mutually displaceable telescopically, one of said two sleeves (19) having a part (21) for hermetically sealed connection to a said discharge nozzle (13) and the other of said two sleeves (20) having a part (24) for hermetically sealed connection to a said transfer line (7,8).
2. A device according to claim 1, wherein said sleeves are concentric and said device further comprises at least one seal sealing said one of said sleeves to said other of said sleeves.
3. A device according to claim 1, wherein the mutual displacement of said sleeves is axial from their contracted position by such a distance as to provide in said device accommodation for a volume of said medium corresponding to a fluid volume of said discharge nozzle.
4. A device according to claim 3, further comprising releasable retaining means for retaining said sleeves in said contracted position and, when released, permitting said mutual displacement.
5. A device according to claim 4, wherein said releasable retaining means comprises at least one set screw acting between said sleeves.
6. A device according to claim 1, wherein said part for said hermetically sealed connection of said other of said two sleeves (20) to said transfer line (7,8) comprises a screwthread (24) at one end of said other sleeve, said device further comprising a first cuff (27) mounted upon said other sleeve (20), said first cuff being rotatable relative to, and fixed axially relative to, said other sleeve and having retaining means (31) for securing said other sleeve relative to said one sleeve.
7. A device according to claim 6, further comprising a second cuff (28) secured to said one of said two sleeves and displaceable axially relative to said first cuff, said retaining means serving to secure said first cuff relative to said second cuff.
8. A device according to claim 4, wherein said part for hermetically sealed connection of said one of said two sleeves comprises a bayonet coupling member (21) secured upon said sleeve and sealed thereto, said bayonet coupling member being formed to engage complementary bayonet coupling means of said discharge nozzle.
9. Apparatus comprising a container having a discharge nozzle and a device for coupling said discharge nozzle to at least one line for transferring from said container a liquid or gaseous medium of a group comprising miscible plastic components, said container having a bottom and a hermetically-sealing cover, said discharge nozzle being provided at said bottom, said device (l) comprising two sleeves (19,20), said sleeves being mutually displaceable telescopically, one of said two sleeves (19) being connected, and hermetically sealed, to said discharge nozzle (13) and the other of said two sleeves (20) being connected, and hermetically sealed, to a said transfer line (7,8), and a seal hermetically sealing said one of said two sleeves to the other of said two sleeves.
10. Apparatus according to claim 9, wherein said of said sleeves (20) is displaceable axially relative to said other of said two sleeves (19) by such a distance as to provide for the accommodation of a volume of said medium corresponding to the volume of a compartment of said discharge nozzle.
11. Apparatus according to claim 9, wherein said container (3,4) is cylindrical and said bottom (11) is conical, said bottom having an opening (12) for said device (1) and a bearing for an agitator extending into said container.
12. Apparatus according to claim 11, wherein said opening is provided at the lowest point of said bottom.
13. Apparatus according to claim 12, wherein said container (3,4) comprises a shell extending from an outer edge of said conical bottom (11) at least as far as said opening (12), said shell serving to mount said container upon a support structure (16).
14. Apparatus according to claim 9, further comprising a fill level monitor (40) in the region of the opening (12) in said bottom (11) of said container (3,4).
15. Apparatus according to claim 14, wherein said fill level monitor (40) comprises a pressure sensitive sensor responsive to the weight of medium held inside said container (3,4).
16. Apparatus according to claim 9, further comprising a ventilation valve (41) in said cover (15) of said container (3,4).
17. Apparatus according to claim 9, wherein said discharge nozzle (13) comprises a conical seal at its end oriented toward said sleeves (19,20), bayonet coupling means (22) and a valve (14) for closing said discharge nozzle.
18. Apparatus comprising a container for liquid or gaseous media of a group comprising miscible plastic components, said container having a discharge nozzle for discharging said media, said discharge nozzle having bayonet coupling elements, and a cup-shaped seal mounted upon said discharge nozzle, said seal having bayonet-coupling means (36) engaging said bayonet-coupling elements (32) of said discharge nozzle (13), said cup-shaped seal being configured to close and seal hermetically the free end of said discharge nozzle.
19. Apparatus according to claim 18, further comprising a cam (37) for locking said bayonet-coupling means (36) of said cup-shaped seal (32) to said bayonet coupling elements (22).
20. Apparatus according to claim 19, further comprising a lever (38) for adjusting said cam (37).
21. Apparatus according to claim 20, further comprising a detent for securing said lever (38) against unintentional rotation.
22. Apparatus according to claim 18, wherein said seal holds a sealing liquid and the free end of said discharge nozzle is immersed, at least partially, into said sealing liquid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3928366.6 | 1989-08-28 | ||
| DE3928366A DE3928366A1 (en) | 1989-08-28 | 1989-08-28 | DEVICE FOR REMOVING MEDIA AVAILABLE IN CONTAINERS, LIQUID OR GASEOUS, LIKE IN COMPONENT MIXABLE PLASTIC MATERIALS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2039719A1 true CA2039719A1 (en) | 1991-03-01 |
Family
ID=6388015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002039719A Abandoned CA2039719A1 (en) | 1989-08-28 | 1990-08-21 | Device for extracting fluid or gaseous media supplied in containers like plastic compounds miscible in components and the like |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0440761B1 (en) |
| JP (1) | JPH04501546A (en) |
| AT (1) | ATE116268T1 (en) |
| CA (1) | CA2039719A1 (en) |
| DE (2) | DE3928366A1 (en) |
| WO (1) | WO1991003419A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245685A (en) * | 2021-05-24 | 2021-08-13 | 新乡市瑞立金属有限公司 | Automatic device that adds of silencer high frequency welding scaling powder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479146B (en) * | 2020-11-02 | 2022-09-13 | 安徽独秀山蓝莓科技开发有限公司 | Blueberry is raw materials extracting device for juice beverage processing |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE217624C1 (en) * | ||||
| US760790A (en) * | 1903-08-21 | 1904-05-24 | Charles L Holt | Expansion-joint for soil-pipes. |
| US1471055A (en) * | 1922-07-14 | 1923-10-16 | Andrew J Nelson | Coupling |
| US2515899A (en) * | 1946-03-27 | 1950-07-18 | Rca Corp | Electrical bonding coupling |
| US2765092A (en) * | 1952-05-05 | 1956-10-02 | Harry G Rice | Beverage dispensing system |
| US4033480A (en) * | 1975-06-17 | 1977-07-05 | Marson Corporation | Multiple fluid dispenser |
| US4067479A (en) * | 1975-07-31 | 1978-01-10 | Products Research & Chemical Corporation | Two part material meter-mix dispenser apparatus |
| US4231492A (en) * | 1978-03-14 | 1980-11-04 | Oatey Co. | Apparatus and method for dispensing putty-like material |
| DE7931295U1 (en) * | 1979-11-06 | 1980-03-06 | Vosschemie Gmbh, 2082 Uetersen | DEVICE FOR EMPTYING THE CONTENT OF CAN-SHAPED, WITH TOUGH-LIQUID MASTER MATERIALS, IN PARTICULAR SPATULAS, OR PUTTY, AND HARDENER PASTE FILLED CONTAINERS |
| DE7934304U1 (en) * | 1979-12-06 | 1980-03-20 | Voss Chemie | Device for emptying the contents of cans filled with viscous master cups, in particular fillers or putty and / or hardener pastes |
| NO842553L (en) * | 1984-06-25 | 1986-01-20 | Mellgren, Asbjoern, | MASS DOSAGE DEVICE FROM CLOSED SILO / CONTAINER |
| EP0254764B1 (en) * | 1986-07-31 | 1990-07-25 | Dover Corporation | means for selectively joining at least one of a first set of stationary conduits to any one of a second set of stationary conduits |
| DE3819960A1 (en) * | 1987-06-19 | 1988-12-29 | Battenfeld Kunststoffmasch | Method and device for delivering bulk material from a supply container |
-
1989
- 1989-08-28 DE DE3928366A patent/DE3928366A1/en not_active Withdrawn
-
1990
- 1990-08-21 DE DE59008140T patent/DE59008140D1/en not_active Expired - Fee Related
- 1990-08-21 WO PCT/DE1990/000636 patent/WO1991003419A1/en active IP Right Grant
- 1990-08-21 EP EP90911917A patent/EP0440761B1/en not_active Expired - Lifetime
- 1990-08-21 JP JP2511185A patent/JPH04501546A/en active Pending
- 1990-08-21 CA CA002039719A patent/CA2039719A1/en not_active Abandoned
- 1990-08-21 AT AT90911917T patent/ATE116268T1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245685A (en) * | 2021-05-24 | 2021-08-13 | 新乡市瑞立金属有限公司 | Automatic device that adds of silencer high frequency welding scaling powder |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0440761A1 (en) | 1991-08-14 |
| JPH04501546A (en) | 1992-03-19 |
| EP0440761B1 (en) | 1994-12-28 |
| WO1991003419A1 (en) | 1991-03-21 |
| DE3928366A1 (en) | 1991-03-07 |
| ATE116268T1 (en) | 1995-01-15 |
| DE59008140D1 (en) | 1995-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |