WO1992008897A1 - Fluid pump adaptor - Google Patents
Fluid pump adaptor Download PDFInfo
- Publication number
- WO1992008897A1 WO1992008897A1 PCT/AU1991/000518 AU9100518W WO9208897A1 WO 1992008897 A1 WO1992008897 A1 WO 1992008897A1 AU 9100518 W AU9100518 W AU 9100518W WO 9208897 A1 WO9208897 A1 WO 9208897A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- container
- passage
- pump adaptor
- fluid pump
- Prior art date
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
- B67D7/0238—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 utilising compressed air or other gas acting directly or indirectly on liquids in storage containers
-
- 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
- B67D7/0288—Container connection means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
Definitions
- the present invention relates to a fluid pump adaptor, and more particularly to a fluid pump adaptor 20 for use in pumping fluid from a container such as a drum.
- One form of fluid pump previously used for emptying drums has a threaded collar with a tube which is adapted to extend into the drum.
- the threaded collar is screwed
- fluid pumps of this type comprise a mechanical or hand operated type pump which is arranged to pump fluid out of the drum and to supply replacement air into the drum to compensate for the extracted fluid.
- U.S. patent 3880179 describes a fluid pumping system. In this system an inert gas is pumped into the drum at one location which enables a powdery substance in the drum to be pushed out of the drum through a riser tube positioned at a second location.
- the object of the present invention is to provide a pump which has no moving parts and which is inexpensive to manufacture.
- a fluid pump adaptor arranged to be fitted to an opening in an otherwise closed container containing a fluid
- said pump adaptor comprising a body having a first fluid passage which extends therethrough and is arranged to extend into the container and below the level of the fluid inside the container, and a second fluid passage extending through the body and opening into the interior of the container, through which said second fluid passage a pressurized fluid from a source of pressurized fluid external of the fluid pump adaptor may be delivered into the container, said pressurized fluid forcing the level of the fluid inside the container downwardly as fluid passes upwardly through the first fluid passage and out of the container.
- the fluid in the container would typically be a liquid, and the pressurized fluid typically a gas, e.g. air.
- the body of the fluid pump has attachment means to sealingly engage the fluid pump with the container and is advantageously shaped for receipt in a plughole of the container.
- the attachment means comprises a peripheral thread on the body of the fluid pump adapted to engage with a threaded plug hole in the container to thereby enable the pump to be secured to the container.
- connection between the container and the thread on the body is made fluid tight by the provision of a seal.
- seal is an O-ring.
- means is provided for connecting the second passage externally of the container to a source of compressed air.
- Such means may be externally upstanding from the body and be adapted for attachment to a fluid conduit coupled to the source of pressurized fluid.
- a device is associated with the second passage to control the pressure of pressurized fluid delivered to the container. This device may include means to limit the pressure of the fluid.
- the first passage communicates externally of the container with either a U-shaped outlet pipe or a hose. Means may be provided on said body to interchangeably attach such an outlet or hose.
- a fluid pump adaptor arranged to be fitted to a closed container containing a fluid
- said pump adaptor comprising a body having first and second fluid passages extending therethrough, attachment means to sealingly engage the body of the fluid pump adaptor with respect to an opening in the container with both said first and second fluid passages opening into the interior of the container, a tube attached to the body for providing an extension of the first fluid passage internal of the container, which tube extends below the level of the fluid inside the container, and connection means upstanding from the body for connecting the second fluid passage with a source of pressurized fluid so that pressurized fluid may be delivered into the container through the second fluid passage, said pressurized fluid when delivered into the container through said second passage forcing the level of the fluid inside the container downwardly as fluid passes upwardly through said tube and the first fluid passage and out of the container.
- Figure 1 is a partial cross-sectional side view of a drum fitted with a fluid pump adaptor according to an embodiment of the present invention.
- Figure 2 is an enlarged view of the fluid pump shown in Figure 1.
- Figure 1 illustrates a fluid pump adaptor 10 secured to a drum 12.
- Drum 12 is typically a 44 gallon drum containing oil, diesel or any other liquid.
- the fluid pump adaptor 10 comprises a body or plug 14 with a peripheral thread 16.
- the thread 16 enables the fluid pump adaptor 10 to be screwed into a corresponding threaded plug hole 18 in the upper wall 20 of the drum 12.
- the interface between the plug hole 18 and the body 14 is made fluid tight by an 0-ring seal 19 which is retained against a shoulder 21 of the body 14 and abuts the exterior of wall 20 about plug hole 18.
- first and second fluid passages 22, 24 Extending through the body 14 are first and second fluid passages 22, 24.
- the diameter of the second fluid passage 24 is smaller than the diameter of the first fluid passage 22.
- Tube 26 Coaxial with the first fluid passage 22 and extending into the drum 12 is a tube 26.
- Tube 26 may be either integrally formed with the body 14 or otherwise connected to the body 14 to provide an extension of fluid passage 22, i.e. a continuous passageway through the first passage 22 and the tube 26.
- the distal end 28 of tube 26 is positioned adjacent the bottom wall 30 of the drum 12, below the level of fluid in the drum.
- connection pipe 32 In communication with second passage 24 connection pipe 32 carries a nipple 33 for connection of pipe 32 via a hose to a source of pressurized fluid (not shown).
- a regulator 36 on the connector pipe 32 regulates the flow of fluid through the connector pipe 32 and thereby the pressure in the drum 12.
- Regulator 36 may include a filter to prevent the flow of oil or water through the connector pipe 32.
- a pressure relief valve 37 is also provided to stop the flow of fluid through the regulator 36 before the pressure in the drum exceeds a predetermined pressure.
- the pressure relief valve 37 would typically be set for example at 35 Pa.
- pressurized air flows into the drum 12 through the second passage 24.
- the pressurized air forces the level of the liquid inside the drum 12 to move downwardly thereby causing a column of liquid inside the pipe 26 to be driven upwardly through the pipe 26 and out of the drum 12 through first passage 12.
- a short pipe 38 is attached to body 14 external of the drum 12 and coaxial with the first passage 22.
- This short pipe 38 is arranged to enable interchangeable connection with a U-shaped outlet pipe fitted with an on/off valve or a hose fitted with a nozzle. This enables the liquid which is pumped out of the drum 12 to be directly pumped into a fuel tank or other container.
- the invention is particularly advantageous because the pump adaptor of the present invention may be formed as an integral one piece unit, has no moving parts and can be manufactured substantially cheaper than existing pump assemblies used for similar purposes.
- the low pressure required by the present invention also means that a simple O-ring seal is sufficient to seal the connection between the pump body and the drum.
- the present invention requires use of only one plug hole in the 44 gallon drum or container as opposed to the two plug holes required by the device described in U.S. patent 3880179.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
A fluid pump adaptor arranged to be fitted to an opening in an otherwise closed containing fluid. The fluid pump adaptor includes a body (14) having a first fluid passage (22) which extends therethrough and is arranged to extend into the container and below the level of the fluid inside the container, and a second fluid passage (24) extending through the body (14) and opening into the interior of the container. Pressurized fluid from a source of pressurized fluid external of the fluid pump adaptor being delivered through the second fluid passage (24) and into the container so as to force the level of the fluid inside the container downwardly as fluid passes upwardly through the first fluid passage (22) and out of the container.
Description
5 i
10
15
FLUID PUMP ADAPTOR
The present invention relates to a fluid pump adaptor, and more particularly to a fluid pump adaptor 20 for use in pumping fluid from a container such as a drum.
One form of fluid pump previously used for emptying drums has a threaded collar with a tube which is adapted to extend into the drum. The threaded collar is screwed
25 into a plug hole in the drum. Generally, fluid pumps of this type comprise a mechanical or hand operated type pump which is arranged to pump fluid out of the drum and to supply replacement air into the drum to compensate for the extracted fluid.
30 U.S. patent 3880179 describes a fluid pumping system. In this system an inert gas is pumped into the drum at one location which enables a powdery substance in the drum to be pushed out of the drum through a riser tube positioned at a second location. The disadvantage
35 of this system is that it requires two plug holes in the drum and the apparatus used is a two piece apparatus which is cumbersome.
The object of the present invention is to provide a pump which has no moving parts and which is inexpensive to manufacture.
According to a first aspect of the present invention there is provided a fluid pump adaptor arranged to be fitted to an opening in an otherwise closed container containing a fluid, said pump adaptor comprising a body having a first fluid passage which extends therethrough and is arranged to extend into the container and below the level of the fluid inside the container, and a second fluid passage extending through the body and opening into the interior of the container, through which said second fluid passage a pressurized fluid from a source of pressurized fluid external of the fluid pump adaptor may be delivered into the container, said pressurized fluid forcing the level of the fluid inside the container downwardly as fluid passes upwardly through the first fluid passage and out of the container. The fluid in the container would typically be a liquid, and the pressurized fluid typically a gas, e.g. air.
Preferably, the body of the fluid pump has attachment means to sealingly engage the fluid pump with the container and is advantageously shaped for receipt in a plughole of the container. Preferably, the attachment means comprises a peripheral thread on the body of the fluid pump adapted to engage with a threaded plug hole in the container to thereby enable the pump to be secured to the container.
Preferably, the connection between the container and the thread on the body is made fluid tight by the provision of a seal. Preferably the seal is an O-ring.
Preferably, means is provided for connecting the second passage externally of the container to a source of compressed air. Such means may be externally upstanding from the body and be adapted for attachment to a fluid conduit coupled to the source of pressurized fluid.
Preferably, a device is associated with the second passage to control the pressure of pressurized fluid delivered to the container. This device may include means to limit the pressure of the fluid. Preferably, the first passage communicates externally of the container with either a U-shaped outlet pipe or a hose. Means may be provided on said body to interchangeably attach such an outlet or hose.
According to a second aspect of the present invention there is provided a fluid pump adaptor arranged to be fitted to a closed container containing a fluid, said pump adaptor comprising a body having first and second fluid passages extending therethrough, attachment means to sealingly engage the body of the fluid pump adaptor with respect to an opening in the container with both said first and second fluid passages opening into the interior of the container, a tube attached to the body for providing an extension of the first fluid passage internal of the container, which tube extends below the level of the fluid inside the container, and connection means upstanding from the body for connecting the second fluid passage with a source of pressurized fluid so that pressurized fluid may be delivered into the container through the second fluid passage, said pressurized fluid when delivered into the container through said second passage forcing the level of the fluid inside the container downwardly as fluid passes upwardly through said tube and the first fluid passage and out of the container. An embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings in which:-
Figure 1 is a partial cross-sectional side view of a drum fitted with a fluid pump adaptor according to an embodiment of the present invention; and
Figure 2 is an enlarged view of the fluid pump shown in Figure 1.
Figure 1 illustrates a fluid pump adaptor 10 secured to a drum 12. Drum 12 is typically a 44 gallon drum containing oil, diesel or any other liquid. The fluid pump adaptor 10 comprises a body or plug 14 with a peripheral thread 16. The thread 16 enables the fluid pump adaptor 10 to be screwed into a corresponding threaded plug hole 18 in the upper wall 20 of the drum 12. The interface between the plug hole 18 and the body 14 is made fluid tight by an 0-ring seal 19 which is retained against a shoulder 21 of the body 14 and abuts the exterior of wall 20 about plug hole 18.
Extending through the body 14 are first and second fluid passages 22, 24. The diameter of the second fluid passage 24 is smaller than the diameter of the first fluid passage 22. Coaxial with the first fluid passage 22 and extending into the drum 12 is a tube 26. Tube 26 may be either integrally formed with the body 14 or otherwise connected to the body 14 to provide an extension of fluid passage 22, i.e. a continuous passageway through the first passage 22 and the tube 26. The distal end 28 of tube 26 is positioned adjacent the bottom wall 30 of the drum 12, below the level of fluid in the drum.
Attached to the body 14 external of the drum 12 is a connection pipe 32. In communication with second passage 24 connection pipe 32 carries a nipple 33 for connection of pipe 32 via a hose to a source of pressurized fluid (not shown). A regulator 36 on the connector pipe 32 regulates the flow of fluid through the connector pipe 32 and thereby the pressure in the drum 12. Regulator 36 may include a filter to prevent the flow of oil or water through the connector pipe 32. A pressure relief valve 37 is also provided to stop the flow of fluid through the regulator 36 before the pressure in the drum exceeds a predetermined pressure. The pressure relief valve 37 would typically be set for example at 35 Pa.
When the connector pipe 32 is connected to a source of pressurized air, for example an air compressor or air tank, and regulator 36 is opened, pressurized air flows into the drum 12 through the second passage 24. The pressurized air forces the level of the liquid inside the drum 12 to move downwardly thereby causing a column of liquid inside the pipe 26 to be driven upwardly through the pipe 26 and out of the drum 12 through first passage 12. Preferably, attached to body 14 external of the drum 12 and coaxial with the first passage 22 is a short pipe 38. This short pipe 38 is arranged to enable interchangeable connection with a U-shaped outlet pipe fitted with an on/off valve or a hose fitted with a nozzle. This enables the liquid which is pumped out of the drum 12 to be directly pumped into a fuel tank or other container.
As 44 gallon drums and other similar containers are not reinforced to sustain high internal pressures (i.e. pressures above 35kPa [S.p.s.i.]) it was not previously recognised that it was possible to use a flow of pressurized fluid to pump out the contents of these types of containers. However, the device of the present invention takes advantage of the large surface area of the liquid inside the drum and as such only a small force on the surface of the liquid is required to obtain a good flow rate of liquid out of the drum. In one experiment using pressurized air at 17.5kPa (2 p.s.i.), it was found that medium grade motor oil could be delivered at a flow rate of 12 litres per minute.
The invention is particularly advantageous because the pump adaptor of the present invention may be formed as an integral one piece unit, has no moving parts and can be manufactured substantially cheaper than existing pump assemblies used for similar purposes. As the pressure of the air used to drive the fluid out of the container is relatively low, a variety of air sources can
be used. Even the air in a spare tyre can be used to operate the fluid pump. The low pressure required by the present invention also means that a simple O-ring seal is sufficient to seal the connection between the pump body and the drum. Furthermore, the present invention requires use of only one plug hole in the 44 gallon drum or container as opposed to the two plug holes required by the device described in U.S. patent 3880179.
The embodiment has been described by way of example only and modifications are possible within the scope of the invention.
Claims
1. A fluid pump adaptor arranged to be fitted to an opening in an otherwise closed container, containing a fluid, said fluid pump adaptor comprising a body having a first fluid passage which extends therethrough and is arranged to extend into the container and below the level of the fluid inside the container, and a second fluid passage extending through the body and opening into the interior of the container, through which said second fluid passage a pressurized fluid from a source of pressurized fluid external of the fluid pump adaptor may be delivered into the container, said pressurized fluid forcing the level of the fluid inside the container downwardly as fluid passes upwardly through the first fluid passage and out of the container.
2. A fluid pump adaptor according to claim 1 wherein said body of the fluid pump has attachment means to sealingly engage the fluid pump with the container.
3. A fluid pump adaptor according to claim 3 wherein the attachment means is shaped for receipt in a plughole of the container.
4. A fluid pump adaptor according to claim 2 or claim 3 wherein said attachment means comprises a peripheral thread on the body of the fluid pump adapted to engage with a threaded plug hole in the container to thereby enable the pump to be secured to the container.
5. A fluid pump adaptor according to claim 4 wherein the body comprises a shoulder portion and said peripheral thread is formed on said shoulder portion.
6. A fluid pump adaptor according to claim 4 or claim 5 wherein the connection between the container and the thread on the body is made fluid tight by the provision of a seal.
7. A fluid pump adaptor according to any one of the preceding claims further comprising means to control the pressure of the pressurized fluid delivered to the container.
8. A fluid pump adaptor according to claim 7 wherein the control means further comprises a pressure relief mechanism.
9. A fluid pump adaptor according to any one of the preceding claims further comprising means for connecting said second passage externally of the container to a source of compressed air.
10. A fluid pump adaptor according to any one of claims 7 to 9 wherein the connecting means comprises a member upstanding from the body, said member being adapted for attachment to a fluid conduit coupled to the source of pressurized fluid.
11. A fluid pump adaptor according to any one of the preceding claims wherein the diameter of the second fluid passage is smaller than the diameter of the first fluid passage.
12. A fluid pump adaptor arranged to be fitted to a closed container containing a fluid, said pump adaptor comprising a body having first and second fluid passages extending therethrough, attachment means to sealingly engage the body of the fluid pump adaptor with respect to an opening in the container with both said first and second fluid passages opening into the interior of the container, a tube attached to the body for providing an extension of the first fluid passage internal of the container, which tube extends below the level of the fluid inside the container, and connection means upstanding from the body for connecting the second fluid passage with a source of pressurized fluid so that pressurized fluid may be delivered into the container through the second fluid passage, said pressurized fluid when delivered into the container through said second passage forcing the level of the fluid inside the container downwardly as fluid passes upwardly through said tube and the first fluid passage and out of the container.
13. A fluid pump adaptor according to any one of the preceding claims wherein said first passage is arranged to communicate externally of the container with either a U-shaped outlet pipe or a hose.
14. A fluid pump adaptor according to any one of the preceding claims wherein a tube extends co-axially with the first fluid passage into the drum, the tube being either formed integrally with the body or otherwise connected to the body to provide an extension of the first fluid passage.
15. In combination with a container having a threaded opening a fluid pump adaptor arranged to be mounted in said threaded opening, said fluid pump adaptor comprising a body having a first fluid passage which extends therethrough and is arranged to extend into the container to a point substantially adjacent the bottom surface of the container, and a second fluid passage extending through the body and opening into the container, through which said second fluid passage a pressurized fluid from a source of pressurized fluid external of the fluid pump adaptor may be delivered into the container, said pressurized fluid forcing the level of the fluid inside the container downwardly as fluid passes upwardly through the first fluid passage and out of the container.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPK3361 | 1990-11-14 | ||
AUPK336190 | 1990-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992008897A1 true WO1992008897A1 (en) | 1992-05-29 |
Family
ID=3775069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1991/000518 WO1992008897A1 (en) | 1990-11-14 | 1991-11-14 | Fluid pump adaptor |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO1992008897A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015096428A (en) * | 2013-11-15 | 2015-05-21 | 花王株式会社 | Dispenser |
US9233827B2 (en) | 2013-03-15 | 2016-01-12 | Michael Charles Wanless | Various container attachable one-handed controllable pneumatic fluid dispensing apparatus with vent valve |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3644950A (en) * | 1950-08-23 | 1951-08-23 | Improved means for drawing off liquid froma container | |
GB1358690A (en) * | 1971-10-20 | 1974-07-03 | Makin Son Ltd Thos | Dispensing of liquids by gaseous pressure |
JPS5612099A (en) * | 1979-07-11 | 1981-02-05 | Osamu Takada | Pump using compressed air |
CH642930A5 (en) * | 1980-02-16 | 1984-05-15 | Beda Hutter | Method and device for removing liquid from at least one container |
DE3602079A1 (en) * | 1985-01-29 | 1986-09-18 | Hermetron Ltd., Netanya | Device for transferring liquids |
AU5521386A (en) * | 1986-03-25 | 1987-10-01 | Patrick Walter Francis | Dispenser pump powered by human lungs |
JPH01142300A (en) * | 1987-11-30 | 1989-06-05 | Konica Corp | Pressure pump |
-
1991
- 1991-11-14 WO PCT/AU1991/000518 patent/WO1992008897A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3644950A (en) * | 1950-08-23 | 1951-08-23 | Improved means for drawing off liquid froma container | |
GB1358690A (en) * | 1971-10-20 | 1974-07-03 | Makin Son Ltd Thos | Dispensing of liquids by gaseous pressure |
JPS5612099A (en) * | 1979-07-11 | 1981-02-05 | Osamu Takada | Pump using compressed air |
CH642930A5 (en) * | 1980-02-16 | 1984-05-15 | Beda Hutter | Method and device for removing liquid from at least one container |
DE3602079A1 (en) * | 1985-01-29 | 1986-09-18 | Hermetron Ltd., Netanya | Device for transferring liquids |
AU5521386A (en) * | 1986-03-25 | 1987-10-01 | Patrick Walter Francis | Dispenser pump powered by human lungs |
JPH01142300A (en) * | 1987-11-30 | 1989-06-05 | Konica Corp | Pressure pump |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN, M64, page 119; & JP,A,56 012 099 (TAKADA), 2 May 1981. * |
PATENT ABSTRACTS OF JAPAN, M867, page 19; & JP,A,1 142 300 (KONICA CORP.), 6 May 1989. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9233827B2 (en) | 2013-03-15 | 2016-01-12 | Michael Charles Wanless | Various container attachable one-handed controllable pneumatic fluid dispensing apparatus with vent valve |
JP2015096428A (en) * | 2013-11-15 | 2015-05-21 | 花王株式会社 | Dispenser |
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