CA1187448A - Outlet means for a container - Google Patents
Outlet means for a containerInfo
- Publication number
- CA1187448A CA1187448A CA000421954A CA421954A CA1187448A CA 1187448 A CA1187448 A CA 1187448A CA 000421954 A CA000421954 A CA 000421954A CA 421954 A CA421954 A CA 421954A CA 1187448 A CA1187448 A CA 1187448A
- Authority
- CA
- Canada
- Prior art keywords
- container
- coupling
- parts
- coupling parts
- spillage
- 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.)
- Expired
Links
Landscapes
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An outlet means for a container is disclosed, wherein safety with respect to spillage and contamination of the interior of the container in connection with emptying and filling operations is increased by using a spillage-proof coupling as a connection between the interior of the container and external connection means.
An outlet means for a container is disclosed, wherein safety with respect to spillage and contamination of the interior of the container in connection with emptying and filling operations is increased by using a spillage-proof coupling as a connection between the interior of the container and external connection means.
Description
The present invention relates to an outlet means for a container.
More particularlyJ the invention relates to such means for containers contain-ing pesticides or similar hazardous substances.
In fields wherein for varying reasons9 it is important to avoid spillage from containers or contamination of containers it is necessary to take special measures to employ emptying and filling procedures which are as closed as possible. The handling of containers for pesticides is an example.
Pesticides are generally delivered in drums which, when used, are Connected to sprayers and the like by opening a cover on the drum and inserting a suction pipe into the drum. Even if the pipe is sealed to the opening of the drum, considerable spillage cannot be avoided at this type of handling. When the outlet pi~e is removed from the drum there will be lots of the pesticidal agent leEt on the pipe, both on the inside and the outside; and, further, the dismount-ing and later mounting of the cover will bring about risks of spillage. Since the pesticidal agent in the drum is in a much more concentrated form than the evcntually-used diluted liquid, even minor spillages can be health-endangering, and a drum fouled by pesticides is a problem with respect to handling and des-truction.
A further problem in this connection is that the connecting of the drum to the distributor means, as has already been indicated, gives rise to several occasions when the inside and the contents of the drum can be contaminated with impurities from the environment~
It is generally too expensive to carry out cleaning under conditions which are acceptable with respect to occupational hygiene, and used drums are thus, as a rule, collected and destroyed. This, however, also must be done under controlled conditions. There is a special problem when special coupling means - 1 - ~
are attached to the drums since the concentrated pesticidal agents are comparatively viscous and can dry and form deposits which might clog openings or prevent mechanical parts from funct-ioning as they should.
The main object of the present invention is to pro~
vide a system Eor emptying containers, which system is not im-paired by the above described disadvantages.
A particular object of the invention is to provide a system which reduces the risks of spillage and fouling.
A further object is to provide an emptying system which is closed to such an extent that re-use of used drums is made possible.
A still further object of the invention is to pro-vide an emptying system particularly suitable to be used for containers containing pesticides.
The invention may be generally defined as a con-tainer Eor pesticide liquids which comprises an upper surface surrounded by a rim portion, which surface is provided with liquid outlet and air inlet openings, one of which openings be-ing provided with an emptying pipe extendiny from the opening to the bottom of the container. Spillage-proof coupling parts are arranged on both the liquid outlet and the air inlet openings the coupling parts being of the type designed to be engaged in a sealing manner forming a connecting channel through the coupl-ing parts and including automatic valves which are closed when the coupling parts are separated from each other and are open when the coupling parts are engaged. With this arrangement, tAe coupling parts are disposed in recessed fashion either below the upper surface of the container or below its surrounding rim.
According to the invention a container is provided with a coupling part having a valve which is open only when a pipe is attached to the coupling part in a sealed manner and this gives several advantages. The risk of spillage of the container contents is considerably reduced since there is no opening between the interior of the container and the environ-ment unless the intended -2a-connection is in place. There are no longer any requirements for dismounting, remounting and storage of a cover. rrhe risk of impurities entering the container is also reduced and this eliminates the requirement for cleaning at re-use. The risk of mistakes at connecting the container to the intended distributor means is considerably reduced. If the connecting part is also provided with a coupling part having a valve, which is open only when the part is attached to the con-tainer in the intended manner, the risk of spillage from e.g. a conduit is eliminated and so is the requirement for emptying this when changing the con-tainer. The risk of fouling the outside of the container with its content is exceedingly small with this arrangement, which facilitates a safe re-use of the container. By designing the coupling parts to be spillage-proof another advan-tage~ besides further reduction of the risk of spillage, is gained, namely that the risk of faulty functioning of the mechanical parts of the coupling, owing to presence of container contents in the coupling, is reduced and also that the risk of impurities entering the drum or the coupling is reduced since spillage-proof couplings hardly can be connected when impurities in amounks worth men t:ioning are present. The system is closed both at emptying and at re-filling.
[t is particularly advantageous to design the coupling parts as quick-couplings as this considerably facilitates the coupling both at emptying and filling. The above mentioned advantages are particularly important with respect to containers containing pesticides. Thenoxiouscontent means that even minor spillages must be avoided. The reduced risk of contamination makes re-use of the contain~
ers possible. This was not possible previously for economic reasons. The safety of spillage-proof coupling against contamination, according to what has been said above, is a particular advantage with pesticides since they can dry and form troublesome deposits.
. , The invention is applicable whenever containers are to be coupled to exterior connections and it is desired that the handling of the contents of the containers be as closed as possible. The invention is particularly appli-cable for containers containing noxious substaQces, e.g. different pesticides, and particularly plant protection chemicals.
To avoid direct contact between the interior of the container and the environment a coupling is used which consists of a first coupling part, in-tended to bc attached to an opening in the container in a sealed manner, and a second coupling part intended to be attached to the external connector means in a sealed manner. The parts are suitably designed as quick-couplings which easily can be coupled and separated from each other by a simple hand-grip but there is nothing to prevent the coupling parts from being designed in another manner~ for example with threads. Each coupling part should be provided with a valve so that the inlets to the container and the attached conduit respective-ly can be closed when the coupling parts are separated and be opened when the parts are coupled to each other. The valves are suitably positioned as close to the point oE separation of the coupling as possible. The valves are prefer-ably automatic so that they will be open only when the coupling parts are coupled and closed when they are not.
The coupling employed should be spillage-proof to minimi~e the amount of exposed liquid when the coupling is separated~ The requirement for spillage-proofness means that the parts of the coupling and the valves should be designedin such a manner that essentially no volumes from the connecting canal through the coupling are exposed betwe~n the valves when the parts of the coupling are separated from each other. This means that the fitting of the different parts ofthe coupling is a tight one so that any impurities present between the valves in _ ~ _ the coupling will prevent completion of the desired connection.
If the container is -to be emptied with the coupling on the container directed upwards, it is suitable to arrange a discharge pipe in the container which extends from the coupling to the bottom of the container, and this pipe should be permanently fitted in the container. This arrangement is preferred since it minimizes the risk of spillage and fouling.
To facilitate the entry of air when emptying the container, and the release of air when filling it, respectively, an air opening should be arranged.
This air opening should be designed in such a manner that it does not easily release the container contents or allow impurities to enter. The air opening is suitably also provided with a valve, and, preferably with an autom~tic valve, as indicated above, which is open only when the parts of the coupling are en-g~ged.
According to a presently preferred embodiment, two spillage-proof couplingS, of the type described, are arranged on the container. ~ne of them can function as an air opening via a suitably arranged connecting means to this, while the other coupling can function as an emptying opening in the manner al-ready described above. This arrangement gives increased possibilities of use, and permits, for exampleJ pumping of the container contents. If two couplings are used in this manner, suitably only one of them is provided with an empty-ing pipe, as above, if both are placedon the same side of the container, since one coupling hereby always can function as outlet and the other as inlet, for either air or liquid, independent of the position of the con~ainer.
It is preferred to fit the coupling to a cover or some other detach-able part of the container. This considerably facilitates change and servicing of the coupling. At the same time, it makes the invention applicable in a simple manner for standard containers of different kinds.
It is recommended that the coupling part or parts arranged on the container be given a safe position by being arranged in recessed relation to the adjacent parts of the container. Thus, if the coupling is mounted on a cover, it could be placed in a recessed position relative to the peripheral edge of the cover. It is particularly suitable to arrange ~he coupling in a recessed position relative to the upper surface of the container, or at least relative to an optional edge surrounding this surface, since the container then can be handled and piled entirely without risk of damaging the coupling.
In the accompanying drawings which illustrate the invention:
Figure 1 is a vertical section through a container having two open-ings provided with couplings according to the invention; and Figure 2 shows, partly in section and partly in side elevation, a preferred embodiment of both yarts of a spillage-proof coupling suitable for use according to the invention.
Figure 1 shows a container 1 provided with two threaded openings 2 and 3. Covers ~ and 5 are screwed into the openings and the covers are provided wlth first coupllng parts 6 and 7J which connect the interior of the container with the environment. The coupling part 6 is provided with an emptying pipe 8 which extends from the coupling down to the bottom of the container. It is evident from the drawing that the coupling parts 6 and 7 are recessed both rela-tive to the upper periphery of the cover and relative to the upper edge of the container 9.
Figure 2 shows on a larger scale, the threaded opening 2 of the con-tainer 1, the cover ~ which is ~crewed in, the coupling part 6 and the empty-ing pipe 8. Figure 2 further shows the coupling part 6 as comprising a sub-stantially cylindrical part 10 which defines a channel having a relatively ~8~4~3 narrowed part 11 against which narrowed part a valve body 12 is normally pressed in sealing engagement by means of a spring 13. If the valve body 12 is pressed down and away from the narrowed part 11 of the channel, there will be a connection between the interior of the container and the environment.
~ 'igure 2 also shows the second coupling partJdesignated generally by reference numeral 1~, which is intended to be attached to the first coup-ling part 6 in a sealed manner whereby to connect the interior of the container with an external connection conduit 15. The second coupling part comprises a sleeve 16, intended to be passed over the essentially cylindrical part 10 of the first coupling part. The second coupling part further comprises a central part 17 which ]las an end part 18J the size of which is adjusted with respect to the surface of the valve body 12. The channel space between the central part 17 and the sleeve 16 is normally sealed by a cylindrical valve body 19 which is pressed against the end part 18 by means of the spring 20. If the Cylindrical valve body 19 is pressed upwards and away from the end part 18J a connectiOn between the opening of the second coupllng part and the connection conduit 15 will be created. When the first and the second coupling parts are engaged by passing the sleeve 16 over the cylindrical part 10, the end part 18 on the central part 17 will press the valve body 12 on the first coupling part downwardly to an open position, and the upper part of the essentially cylin-drical part 10 will at the same time press the cylindrical valve body 19 on the second coupling part upwardly to an open position. A continuous channel will thus be formed through the coupling parts from the interior o~ the container to the external connection conduit.
In the engaged positionJ the coupling parts can be locked to one 4~
another by means of a quick-coupling mechanism comprising balls 22 which a-re pressed into the recess which formed a-t the narrowed part 11 of the cylind-rical part 10 by means of a displacemen-t of the jacket 21.
The coupling disclosed above is spillage-proof since the only part of the en~ire connecting channel which is exposed when the coupling parts are separated from each other is the optional space present between the upper surface of the valve bod~y 12 on the first coupling part and the lower surface on tlle end part 18 on the second coupling part.
More particularlyJ the invention relates to such means for containers contain-ing pesticides or similar hazardous substances.
In fields wherein for varying reasons9 it is important to avoid spillage from containers or contamination of containers it is necessary to take special measures to employ emptying and filling procedures which are as closed as possible. The handling of containers for pesticides is an example.
Pesticides are generally delivered in drums which, when used, are Connected to sprayers and the like by opening a cover on the drum and inserting a suction pipe into the drum. Even if the pipe is sealed to the opening of the drum, considerable spillage cannot be avoided at this type of handling. When the outlet pi~e is removed from the drum there will be lots of the pesticidal agent leEt on the pipe, both on the inside and the outside; and, further, the dismount-ing and later mounting of the cover will bring about risks of spillage. Since the pesticidal agent in the drum is in a much more concentrated form than the evcntually-used diluted liquid, even minor spillages can be health-endangering, and a drum fouled by pesticides is a problem with respect to handling and des-truction.
A further problem in this connection is that the connecting of the drum to the distributor means, as has already been indicated, gives rise to several occasions when the inside and the contents of the drum can be contaminated with impurities from the environment~
It is generally too expensive to carry out cleaning under conditions which are acceptable with respect to occupational hygiene, and used drums are thus, as a rule, collected and destroyed. This, however, also must be done under controlled conditions. There is a special problem when special coupling means - 1 - ~
are attached to the drums since the concentrated pesticidal agents are comparatively viscous and can dry and form deposits which might clog openings or prevent mechanical parts from funct-ioning as they should.
The main object of the present invention is to pro~
vide a system Eor emptying containers, which system is not im-paired by the above described disadvantages.
A particular object of the invention is to provide a system which reduces the risks of spillage and fouling.
A further object is to provide an emptying system which is closed to such an extent that re-use of used drums is made possible.
A still further object of the invention is to pro-vide an emptying system particularly suitable to be used for containers containing pesticides.
The invention may be generally defined as a con-tainer Eor pesticide liquids which comprises an upper surface surrounded by a rim portion, which surface is provided with liquid outlet and air inlet openings, one of which openings be-ing provided with an emptying pipe extendiny from the opening to the bottom of the container. Spillage-proof coupling parts are arranged on both the liquid outlet and the air inlet openings the coupling parts being of the type designed to be engaged in a sealing manner forming a connecting channel through the coupl-ing parts and including automatic valves which are closed when the coupling parts are separated from each other and are open when the coupling parts are engaged. With this arrangement, tAe coupling parts are disposed in recessed fashion either below the upper surface of the container or below its surrounding rim.
According to the invention a container is provided with a coupling part having a valve which is open only when a pipe is attached to the coupling part in a sealed manner and this gives several advantages. The risk of spillage of the container contents is considerably reduced since there is no opening between the interior of the container and the environ-ment unless the intended -2a-connection is in place. There are no longer any requirements for dismounting, remounting and storage of a cover. rrhe risk of impurities entering the container is also reduced and this eliminates the requirement for cleaning at re-use. The risk of mistakes at connecting the container to the intended distributor means is considerably reduced. If the connecting part is also provided with a coupling part having a valve, which is open only when the part is attached to the con-tainer in the intended manner, the risk of spillage from e.g. a conduit is eliminated and so is the requirement for emptying this when changing the con-tainer. The risk of fouling the outside of the container with its content is exceedingly small with this arrangement, which facilitates a safe re-use of the container. By designing the coupling parts to be spillage-proof another advan-tage~ besides further reduction of the risk of spillage, is gained, namely that the risk of faulty functioning of the mechanical parts of the coupling, owing to presence of container contents in the coupling, is reduced and also that the risk of impurities entering the drum or the coupling is reduced since spillage-proof couplings hardly can be connected when impurities in amounks worth men t:ioning are present. The system is closed both at emptying and at re-filling.
[t is particularly advantageous to design the coupling parts as quick-couplings as this considerably facilitates the coupling both at emptying and filling. The above mentioned advantages are particularly important with respect to containers containing pesticides. Thenoxiouscontent means that even minor spillages must be avoided. The reduced risk of contamination makes re-use of the contain~
ers possible. This was not possible previously for economic reasons. The safety of spillage-proof coupling against contamination, according to what has been said above, is a particular advantage with pesticides since they can dry and form troublesome deposits.
. , The invention is applicable whenever containers are to be coupled to exterior connections and it is desired that the handling of the contents of the containers be as closed as possible. The invention is particularly appli-cable for containers containing noxious substaQces, e.g. different pesticides, and particularly plant protection chemicals.
To avoid direct contact between the interior of the container and the environment a coupling is used which consists of a first coupling part, in-tended to bc attached to an opening in the container in a sealed manner, and a second coupling part intended to be attached to the external connector means in a sealed manner. The parts are suitably designed as quick-couplings which easily can be coupled and separated from each other by a simple hand-grip but there is nothing to prevent the coupling parts from being designed in another manner~ for example with threads. Each coupling part should be provided with a valve so that the inlets to the container and the attached conduit respective-ly can be closed when the coupling parts are separated and be opened when the parts are coupled to each other. The valves are suitably positioned as close to the point oE separation of the coupling as possible. The valves are prefer-ably automatic so that they will be open only when the coupling parts are coupled and closed when they are not.
The coupling employed should be spillage-proof to minimi~e the amount of exposed liquid when the coupling is separated~ The requirement for spillage-proofness means that the parts of the coupling and the valves should be designedin such a manner that essentially no volumes from the connecting canal through the coupling are exposed betwe~n the valves when the parts of the coupling are separated from each other. This means that the fitting of the different parts ofthe coupling is a tight one so that any impurities present between the valves in _ ~ _ the coupling will prevent completion of the desired connection.
If the container is -to be emptied with the coupling on the container directed upwards, it is suitable to arrange a discharge pipe in the container which extends from the coupling to the bottom of the container, and this pipe should be permanently fitted in the container. This arrangement is preferred since it minimizes the risk of spillage and fouling.
To facilitate the entry of air when emptying the container, and the release of air when filling it, respectively, an air opening should be arranged.
This air opening should be designed in such a manner that it does not easily release the container contents or allow impurities to enter. The air opening is suitably also provided with a valve, and, preferably with an autom~tic valve, as indicated above, which is open only when the parts of the coupling are en-g~ged.
According to a presently preferred embodiment, two spillage-proof couplingS, of the type described, are arranged on the container. ~ne of them can function as an air opening via a suitably arranged connecting means to this, while the other coupling can function as an emptying opening in the manner al-ready described above. This arrangement gives increased possibilities of use, and permits, for exampleJ pumping of the container contents. If two couplings are used in this manner, suitably only one of them is provided with an empty-ing pipe, as above, if both are placedon the same side of the container, since one coupling hereby always can function as outlet and the other as inlet, for either air or liquid, independent of the position of the con~ainer.
It is preferred to fit the coupling to a cover or some other detach-able part of the container. This considerably facilitates change and servicing of the coupling. At the same time, it makes the invention applicable in a simple manner for standard containers of different kinds.
It is recommended that the coupling part or parts arranged on the container be given a safe position by being arranged in recessed relation to the adjacent parts of the container. Thus, if the coupling is mounted on a cover, it could be placed in a recessed position relative to the peripheral edge of the cover. It is particularly suitable to arrange ~he coupling in a recessed position relative to the upper surface of the container, or at least relative to an optional edge surrounding this surface, since the container then can be handled and piled entirely without risk of damaging the coupling.
In the accompanying drawings which illustrate the invention:
Figure 1 is a vertical section through a container having two open-ings provided with couplings according to the invention; and Figure 2 shows, partly in section and partly in side elevation, a preferred embodiment of both yarts of a spillage-proof coupling suitable for use according to the invention.
Figure 1 shows a container 1 provided with two threaded openings 2 and 3. Covers ~ and 5 are screwed into the openings and the covers are provided wlth first coupllng parts 6 and 7J which connect the interior of the container with the environment. The coupling part 6 is provided with an emptying pipe 8 which extends from the coupling down to the bottom of the container. It is evident from the drawing that the coupling parts 6 and 7 are recessed both rela-tive to the upper periphery of the cover and relative to the upper edge of the container 9.
Figure 2 shows on a larger scale, the threaded opening 2 of the con-tainer 1, the cover ~ which is ~crewed in, the coupling part 6 and the empty-ing pipe 8. Figure 2 further shows the coupling part 6 as comprising a sub-stantially cylindrical part 10 which defines a channel having a relatively ~8~4~3 narrowed part 11 against which narrowed part a valve body 12 is normally pressed in sealing engagement by means of a spring 13. If the valve body 12 is pressed down and away from the narrowed part 11 of the channel, there will be a connection between the interior of the container and the environment.
~ 'igure 2 also shows the second coupling partJdesignated generally by reference numeral 1~, which is intended to be attached to the first coup-ling part 6 in a sealed manner whereby to connect the interior of the container with an external connection conduit 15. The second coupling part comprises a sleeve 16, intended to be passed over the essentially cylindrical part 10 of the first coupling part. The second coupling part further comprises a central part 17 which ]las an end part 18J the size of which is adjusted with respect to the surface of the valve body 12. The channel space between the central part 17 and the sleeve 16 is normally sealed by a cylindrical valve body 19 which is pressed against the end part 18 by means of the spring 20. If the Cylindrical valve body 19 is pressed upwards and away from the end part 18J a connectiOn between the opening of the second coupllng part and the connection conduit 15 will be created. When the first and the second coupling parts are engaged by passing the sleeve 16 over the cylindrical part 10, the end part 18 on the central part 17 will press the valve body 12 on the first coupling part downwardly to an open position, and the upper part of the essentially cylin-drical part 10 will at the same time press the cylindrical valve body 19 on the second coupling part upwardly to an open position. A continuous channel will thus be formed through the coupling parts from the interior o~ the container to the external connection conduit.
In the engaged positionJ the coupling parts can be locked to one 4~
another by means of a quick-coupling mechanism comprising balls 22 which a-re pressed into the recess which formed a-t the narrowed part 11 of the cylind-rical part 10 by means of a displacemen-t of the jacket 21.
The coupling disclosed above is spillage-proof since the only part of the en~ire connecting channel which is exposed when the coupling parts are separated from each other is the optional space present between the upper surface of the valve bod~y 12 on the first coupling part and the lower surface on tlle end part 18 on the second coupling part.
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Container for pesticide liquids, which comprises an upper surface surrounded by a rim portion, which surface is pro-vided with liquid outlet and air inlet openings, one of which openings being provided with an emptying pipe extending from the opening to the bottom of the container, and spillage-proof coup-ling parts arranged on both the liquid outlet and the air inlet openings the coupling parts being of the type designed to be engaged in a sealing manner forming a connecting channel through the coupling parts and including automatic valves which are closed when the coupling parts are separated from each other and are open when the coupling parts are engaged, whereby the coupling parts are arranged recessed below the upper surface of the con-tainer or below its surrounding rim.
2. A container as defined in claim 1, wherein a first coupling part is mounted on a detachable cover on the container.
3. A container as defined in claim 1, wherein the coupling parts are of the quick-coupling type.
4. A container as defined in claim 1, or 2, or 3, when said rim portion is raised above said upper surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000421954A CA1187448A (en) | 1983-02-18 | 1983-02-18 | Outlet means for a container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000421954A CA1187448A (en) | 1983-02-18 | 1983-02-18 | Outlet means for a container |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1187448A true CA1187448A (en) | 1985-05-21 |
Family
ID=4124599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000421954A Expired CA1187448A (en) | 1983-02-18 | 1983-02-18 | Outlet means for a container |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1187448A (en) |
-
1983
- 1983-02-18 CA CA000421954A patent/CA1187448A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
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MKEC | Expiry (correction) | ||
MKEX | Expiry |