GB2086488A - Apparatus for dispensing liquids under pressure from containers - Google Patents
Apparatus for dispensing liquids under pressure from containers Download PDFInfo
- Publication number
- GB2086488A GB2086488A GB8132446A GB8132446A GB2086488A GB 2086488 A GB2086488 A GB 2086488A GB 8132446 A GB8132446 A GB 8132446A GB 8132446 A GB8132446 A GB 8132446A GB 2086488 A GB2086488 A GB 2086488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- liquid
- adaptor
- opening
- pump
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
- B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
- B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
- B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
Abstract
Apparatus for dispensing liquid under pressure from a container (1) comprises a source of gas or air (8) for pressurising the liquid contents of the container, and a manually-operable valve (19) for controlling the discharge from the container (1). The container (1) comprises a metal can, and a wall (4) above the level of liquid in the can is provided with a single common opening (7) through which pressure from the source can be applied to the liquid and through which the liquid can be discharged under the control of the valve (19). A region (6) of the wall (4) surrounding the opening, suitably a screw- threaded neck, defines a mounting for detachable co-operation with an adaptor (9) by means of which the source (8) can be connected to the can. Air pressure source (8) is a pump with a ribbed piston rod (14) slidable in a barrel (12) by handle (18). The hollow piston rod forms the exit passage for liquid being dispensed. <IMAGE>
Description
SPECIFICATION
Apparatus for dispensing liquids under pressure from containers
This invention relates to apparatus for dispensing liquids under pressure from containers.
Known apparatus for dispensing liquid under pressure from containers comprises a pump which is manually operable to pressurise the liquid contents of a container which can then be dispensed from the container under the control of a suitably manually-operable valve, and the pump is detachably mounted on the neck of the container through which the container can be filled with liquid after first removing the pump. Normally such containers are constructed from a plastics material by "blow moulding" and the plastics material suitable for use in a blow moulding technqiue is usually of a type liable to be subjected to attack by toxic liquid, such as creasotes and the like. Such containers are therefore not suitable for use with a number of liquids, which it is convenient to dispense by apparatus of this type.
According to our invention in apparatus for dispensing liquid under pressure from a container comprising a source of gas or air for pressurising the liquid contents of the container, and a manuallyoperable valve for controlling the discharge of pressurised fluid from the container, the container comprises a metal can is constructed to withstand at least the maximum pressure of the source and a wall above the level of liquid in the can is provided with a single common opening through which pressure from the source can be applied to the liquid and through which the liquid can be discharged under the control of the valve, a region of the wall surrounding the opening defining mounting means for detachable co-operation with complementary means on an adaptor by means of which the source can be connected to the can.
The container may comprise a metal can in which the liquid to be dispensed is supplied and marketed.
When this is the case a detachable closure for closing the opening is removable before the adaptor can be mounted on the can, and can be replaced after removal of the adapted, to preserve any remaining liquid contents.
Providing a metal can which is more chemically resistant than a plastics container has the advantage that the apparatus can be used with a greater variety of liquids.
The source of pressure may be developed by a pump with is connected to the can by means of the adaptor, and the adaptor may incorporate a dip-tube leading to the valve and through which liquid can be discharged from the can.
The mounting means surround the opening which is usually provided in the wall defining a closure for the uppermost end of the can.
The mounting means may comprise an externally screw-threaded neck which projects upwardly from the wall and which may receive a threaded closure cap normally closing the opening. In such a construction the cap is removable to enable the adaptor to be mounted on the can, and the adaptor incorporates a depending internally screw-threaded skirt which is screwed onto the neck.
In another construction the mounting means comprise a depressed region of the wall surrounding the opening and the adaptor has a spigot portion which is received within the depressed region to define a detachable coupling. The coupling may comprise a screw-threaded engagement or the spigot portion may project through the depressed region to define a connection of the bayonet type. The opening may be sealingly covered by a tearoff strip which is removed before the adaptor can be mounted on the can, or the opening may be closed when the can contents are supplied to the user by means of a detachable and replaceable closure plug, for example adapted to define a bayonet connection with the can.
The adaptor may form an integral part of the body of the pump. Alternatively the pump or other source of pressure may be separate from the adaptor to which it is connected through an external flexible connection.
Our invention enables liquid to be dispensed under pressure from the metal can which may be the can in which it is marketed and, after use, the opening in the can can be closed for use in the future or the can can be thrown away with the adaptor and pump or other source of pressure either transferred to another similar can, or cleaned for use on other occasions to dispense similar or different liquids.
Some embodiments of our invention are illustrated in the accompanying drawings in which Figure 1 is a section through an assembly of a pump mounted on the upper end of a can;
Figure 2 is a similar to Figure 1 but showing a different pump;
Figure 3 is a section through an adaptor for connection to a separate pump mounted on a can;
Figure 4 is a longitudinal section showing a bayonet coupling between a pump and a can;
Figure 5 is a plan of the wall of the upper end of the can with the pump omitted;
Figure 6 shows a spigot portion in engagement with the can;
Figure 7 is similar to Figure 5 but showing the underside of the wall;
Figure 8 is a plan of the wall with the opening closed by the tear-off strip;
Figure 9 is a perspective view of another pump;;
Figure 10 is a perspective view of a triggeroperated discharge device for use with the pump of Figure 9; Figure 11 is a longitudinal section through the body of the pump of Figure 9 with the body mounted on a can;
Figure 12 is a plan of the body; and
Figure 13 is an inverted plan of the same.
The assembly illustrated in Figure 1 of the accompanying drawings comprises a metal can 1 which is designed to withstand pressure to which the liquid 2 which it contains may be subjected. The can comprises a cylindrical peripheral wall 3 which is closed at its upper and lower ends by end walls 4 and 5. An externally screw-threaded neck 6 surrounds a sub stantially central circular opening 7 in the end wall 4, and when the can and its liquid contents are being marketed, the opening is closed by an internally screw-threaded cap (not shown) which is screwed onto the neck 6.
A pump 8 is adapted for use with, and connection to, the can 1.
As illustrated the pump 8 comprises an adaptor 9 of plastics material having an internally screwthreaded depending skirt 10 which, after removal of the cap, is screwed onto the neck 6. In that position a radial flange 11 at the upper end of a cylinder body 12 which extends into the can 1 is clamped between the adaptor 9 and a seal 13, in turn acting to clamp the seal 13 against the upper free end of the neck 6. A rod 14carrying a piston (not shown) which works in the bore 15 of the body 12 is guided in the bore 15 by axially extending angularly spaced ribs 16 on the rod 14. The rod 14 is hollow and leads at its upper end to a radial passage 17 in a handle 18 which is secured to the upper end of the rod 14 and by means of which the can 1 and its contents can be carried.The body 12 also acts as a dip tube through which liquid can be dispensed to the passage 17 through the piston and under the control of a valve at the base of the dip tube and which is operable by a thumb-piece 19 incorporated in the handle 18.
At the upper end of the skirt 10 the adaptor 9 is provided with a pair of diametrically opposed lugs 20 with which complementary projections 21 on the rod 15 above the ribs 16 are engageable.
After removal of the cap the pump 8 is mounted on the can 1 as described above.
The can 1 can then be pressurised by reciprocation of the piston by the use of the handle 18 in order to pump air into the can 1. After the can 1 has been pressurised the handle 18 is depressed to cause the projections 21 to be received within the lugs 20. By rotation of the handle the projections 21 engage with the lugs in the manner of a bayonet coupling so that the can 2 and its contents can be connected by the handle 18 to facilitate dispension. This is achieved by depressing the thumb-piece 19 which opens the valve so that liquid under pressure is delivered to the passage 17 from whence it can be supplied to a lance or other suitable appliance.
Clearly the bayonet coupling can be engaged at any time it is desired to lift or carry the can 2.
After use the pump 8 can be removed from the can 1 and, if not spent, the can 2 can be closed by replacement of the cap. Alternatively the can 2 can be discharged and the pump 8 used in a similar manner with similar can containing similar or different liquids.
In the construction of Figure 2 a dip-tube 39 extends into the can 2 from substantially the centre of the adaptor 9 and the upper end of the tube 30 communicates through suitable passages 31 and 32
in the adaptor 9 with a tube 33 for connection to a
lance or other suitable applicance, between which and the adaptor 9 is incorporated a manuallyoperable flow control valve (not shown).
A cylindrical pump body 34 is upstanding from the adaptor 9 and a piston 35 is reciprocable in the bore 36 at the body 34 by operation of a handle 36 in order to pump air into the can 1 through passages 37,38 and 39 in the walls of the adaptor 9 in order to pressurise the contents.
The construction and operation of the assembly of
Figure 2 is otherwise the same as that of Figure 1 and corresponding reference numerals have been applied to corresponding parts.
In the construction of Figure 3 the pump 8 is omitted and the upper end of the dip-tube 30 leads through an axial passage 40 in the adaptor to a tube 41 for connection to a lance or other appliance and a manually-operable control valve is again located between the adaptor 9 and the lance.
The adaptor 9 has an external union 42 for connection to a pressure generating device, substantially a pump or other source of gas or air pressure, through a flexible pipe 43. The union 42 communicates with the interior of the can 1 through communicating passages 42 and 45 in the adaptor 9.
The construction and operation of the assembly of
Figure 3 is otherwise the same as that in Figure 2 and corresponding reference numerals have been applied to corresponding parts.
In the assembly of Figures 4 to 8 the upper wall 4 of the can 1 is formed with a central cylindrical depression 50 formed at its inner end with an inwardly directed radial flange 51 in which a pair of diametrically opposed notches 52 extending to the wall of the depression are formed.
The adaptor 9 has a spigot portion 53 of the lower end of a radial flange 54 which, in turn, is provided at the lower end of a cylindrical pump body 55. The spigot portion 53 has an inner cylindrical part 56 carrying an "0" ring seal 57 and of a diameter substantially equal to that of the depression 52, and this part 56 leads into a terminal part 58 which is of a diamtere less than the diameter of an opening 59 defined by the flange 51 and which is provided with two outwardly directed ribs 60 which are separated from the cylindrical part 56 by transverse slots 61.
A portion 62 works in the bore of the body 55 to pump air into the can 1 in order to pressurise the contents through a pair of one-way valves 63 and 64 which are incorporated in the adaptor 9.
A dip tube 65 extends into the liquid 2, and passages 66 and 67 in the adaptor lead to a flexible pipe 68 for connection to a valve-operated lance or other appliance.
Normally the liquid contents are sealed in the can 1 by means of a tear-off strip 70 which is received in an oblong rectanguiar recess 71 in the wall 4 within the plan form area of which the depression 50 and the opening 59 lie, thereby to close the opening 5.
With the can 1 upright the tear-off strip 70 is removed from the recess 71 to expose the depression 50 and the opening 59. The spigot 53 is inserted into the depression 50 and is orientated such that the ribs 60 can pass through the notches 52. When the flange 54 is in engagement with the wall 4 the adaptor 9 can be rotated substantially through 90" to cause the slots 61 to receive the flange 51 until the upper ends of the ribs 60 are retained between pairs of spaced dimples 72 in the flange 51. The engage
ment of the spigot 53 within the depression 50 therefore defines a coupling of the bayonet type forming a detachable sealed connection between the pump and the can 1.
The contents of the can 1 can now be pressurised by air pressure applied to the can by operation of the pump which pumps air into the can 1 through the two one-way valves 63, 64. After pressurisation fluid under pressure can be dispensed through the diptube 65 and the flexible pipe 68 under the control of the valve in a manner similar to that described above, for example in the assembly of Figure 1.
In a modification the liquid contents are sealed in the can by a closure cap carrying an elastomeric seal for engagement with the flange 51. The cap is provided with a pair of diametral projections for engagement in the notches 52 and with the flange 51 in a similar manner to be ribs 60 on the spigot portion 53 in order to provide a detachable connection between the cap and the can in the form of a bayonet coupling.
This has the advantage that after a proportion of the contents has been dispensed the adaptor can be removed and the can 1 re-sealed by the cap for future use.
Conveniently the height of the cap is chosen so that when in position to close the opening it does not project above the rim of the can. This enables the cans to be stacked one upon another.
In the assembly illustrated in Figures 9 to 13 the pump 8 comprises a cylindrical body 81 in the bore of which works a piston 82 (not shown). The piston 82 is carried by the lower end of a piston-rod 83 of which the upper end which works through a captive closure cap 84 is carried by a handle 85.
The metal can 1 is formed with a central cylindrical depression 86 comprising a screw-threaded skirt adapted to receive detachably a threaded spigot portion 87 depending from a radial flange 88 at the lower end of the body 81. An "0" ring seal 89 of elastomeric material is clamped between the flange 88 and a portion ofthe end wall 4which surrounds the depression 86.
A partition 90 in the body 81, substantially coplanar with the flange 88, is provided with a depending central spigot 91 of relatively small diameter and which has an axially extending passage 92 in permanent communication with a radial outlet union 93 for connection through a flexible pipe 94 to a trigger-operated discharge device 95, a discharge passage 96 leading to a pressure relief valve 97, and a pair of ports 98 which are diametrically arranged on opposite sides of the spigot 91 and provide communication between the space in the body 81 below the piston and a region in the can 1 above its contents.
A flexible rubber or other elastomeric valve member 99 surrounds the spigot 91 and is clamped against the underside of the partition 90, which is of concave outline, and acts as a one-way valve to permit flow through the ports 98 and into the can 1 from the pump 8, only in that one direction, in order to pressurise the contents of the can 1.
The flexible valve member 99 is held in position by the upper end of a flexible dip tube 100 which depends from the spigot 91 and through which the contents can be dispensed from the can 1 under the control of the device 95.
The relief valve 97 comprises a valve member 101 which is urged into engagement with a seating 102 by means of a spring 103. The strength of the spring limits the pressure to which the contents of the can 1 can be pressurised by the pump 8.
The valve member 101 has an externally accessible extension-piece 104 by means of which the valve 97 can be operated manually by urging the valve member 101 away from the seating 102 in order to relieve the pressure in the can 1, for example to expel noxious odours and the like.
The provision of the screw-threaded connection between the can 1 and the pump 8 facilitates assembly and sealing and enables pressure to be relieved progressively through the screw-threads and the spigot portion 87 is withdrawn from the depression 86.
To carry the assembly with the can 1 either pressurised, or un-pressurised, the piston-rod 83 adjacent to the handle 85 is provided with a pair of diametral projections 105 adapted to be inserted through complementary openings 106 in the nut 84 whereafter the handle 85 can be rotated to move the projections into locking position spaced form the openings 106. This locks the piston in its lowermost position and the assembly can be carried by the engagement of the projection 105 with the cap 84.
The handle 85 is provided with at least one opening 107 in which nozzle 108 of the discharge equipment can be received to facilitate the storage of the discharge equipment 95.
Claims (22)
1. Apparatus for dispensing liquid under pressure from a container comprising a source of gas or air for pressurising the liquid contents of the container, and a manually-operable valve for controlling the discharge of pressurised fluid from the container, in which the container comprises a metal can constructed to withstand at least the maximum pressure of the source, and a wall above the level of liquid in the can is provided with a single common opening through which pressure from the source can be applied to the liquid and through which the liquid can be discharged under the control of the valve, a region of the wall surrounding the opening defining mounting means for detachable co-operation with complementary means on an adaptor by means of which the source can be connected to the can.
2. Apparatus as claimed in Claim 1, in which the container comprises a metal can in which the liquid to be dispensed is supplied and marketed.
3. Apparatus as claimed in Claim 2, in which a detachable closure for closing the opening is removable before the adaptor can be mounted on the can, and the closure is adapted to be replaced after removal of the adaptor, to preserve any remaining liquid contents.
4. Apparatus as claimed in any preceding claim in which the source of pressure is adapted to be developed by a pump which is connected to the can by means of the adaptor, and the adaptor incorporates a dip-tube leading to the valve and through which liquid is adapted to be discharged from the can.
5. Apparatus as claimed in any preceding claim in which the mounting means surround the opening provided in the wall which defines a closure for the uppermost end of the can.
6. Apparatus as claimed in any preceding claim in which the mounting means comprises an exter nay liy screw-threaded neck which projects upwardly from the wall and which is adapted to receive a threaded closure cap normally closing the opening, the cap being removable to enable the adaptor to be mounted on the can, and the adaptor incorporating a depending internally screw-threaded skirt which is adapted to be screwed onto the neck.
7. Apparatus as claimed in any of Claims 1 to 5, in which the mounting means comprises a depressed region of the wall surrounding the opening, and the adaptor has a spigot portion which is received within the depressed region.
8. Apparatus as claimed in Claim 7, in which the spigot portion projects through the depressed region to define a detachable coupling ofthe bayonet type.
9. Apparatus as claimed in Claim 7 or Claim 8, in which the opening is adapted to be sealingly covered by a tear-off strip which is removed before the adaptor can be mounted on the can.
10. Apparatus as claimed in Claim 7 or Claim 8, in which the opening is adapted to be closed when the can contents are supplied to the user by means of a detachable and replaceable closure plug adapted to define a bayonet connection with the can.
11. Apparatus as claimed in Claim 7, in which the spigot portion is externally screw-threaded formed tachable screw-threaded engagement in the depression region, which is also screw-threaded.
12. Apparatus as claimed in any preceding claim in which the adaptor forms an integral part of a body of a pump, which comprises the source of gas or air.
13. Apparatus as claimed in any of Claims 1 to 11, in which the source of gas or airjs separate from the adaptor to which it is connected through an external flexible connection.
14. A pump assembly for pressurising the liquid contents of a container comprising a cylindrical pump body in which works a piston, a partition between the lower end of the body and the container, a hollow spigot depending from the partition and leading to an outlet connection, a flexible valve member surrounding the spigot and defining a one-way valve to permit flow from the pump into the container through at least one port in the partition in one direction only, and a dip tube surrounding the spigot and extending substantially to the base of the container, the dip tube being arranged in the spigot to clamp the valve member against the partition over a region which does not contain the port.
15. A pump assembly as claimed in Claim 14, in which a pressure relief valve incorporated in the body is provided with externally accessible means for opening the valve to relieve pressure from the container.
16. A pump assembly as claimed in Claim 14 or
Claim 15, in which a handle from which a piston-rod forthe piston is carried is provided with means for co-operation with the body in order to lock the handle in a position in which the pump can be carried by a user.
17. A pump assembly as claimed in Claim 16, in which the handle is adapted to form a storage mounting for discharge equipment which is adapted to control the discharge of liquid from the outlet connection.
18. Apparatus for dispensing liquid from a container substantially as described herein with reference to and as illustrated in Figure 1 of the accompanying drawings.
19. Apparatus for dispensing liquid from a container substantially as described herein with reference to and as illustrated in Figure 2 of the accompanying drawings.
20. Apparatus for dispensing liquid from a container substantially as described herein with reference to and as illustrated in Figure 3 of the accompanying drawings.
21. Apparatus for dispensing liquid from a container substantially as described herein with reference to and as illustrated in Figures 4 to 8 of the accompanying drawings.
22. Apparatus for dispensing liquid from a container substantially as described herein with reference to and as illustrated in Figures 9 to 13 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8132446A GB2086488B (en) | 1980-10-28 | 1981-10-28 | Apparatus for dispensing liquids under pressure from containers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8034698 | 1980-10-28 | ||
| GB8132446A GB2086488B (en) | 1980-10-28 | 1981-10-28 | Apparatus for dispensing liquids under pressure from containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2086488A true GB2086488A (en) | 1982-05-12 |
| GB2086488B GB2086488B (en) | 1984-09-26 |
Family
ID=26277352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8132446A Expired GB2086488B (en) | 1980-10-28 | 1981-10-28 | Apparatus for dispensing liquids under pressure from containers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2086488B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809769A (en) * | 1987-08-20 | 1989-03-07 | Wynn Oil Company | Engine coolant flush-filtering using external gas pressure |
| US4899807A (en) * | 1987-08-20 | 1990-02-13 | Wynn Oil Company | Engine coolant flush-filtering using external gas pressure and blocked radiator fill port |
| US4901786A (en) * | 1987-08-20 | 1990-02-20 | Wynn Oil Company | Engine coolant flush-filtering using external gas pressure and radiator valving |
| WO1993006373A1 (en) * | 1991-09-16 | 1993-04-01 | Payne Gerry E | Method and apparatus for automobile coolant extractor/injector |
| GB2267316A (en) * | 1992-05-28 | 1993-12-01 | Kevin John Byrne | Pressurisable liquid dispenser for use relating to damp coursing of buildings |
| US5306430A (en) * | 1992-07-27 | 1994-04-26 | Wynn Oil Company | Engine coolant pressure relief method and apparatus |
| US5318700A (en) * | 1992-08-07 | 1994-06-07 | Wynn Oil Company | Engine and radiator coolant treatment and handling, enabling coolant reuse |
| US5390636A (en) * | 1994-02-14 | 1995-02-21 | Wynn Oil Company | Coolant transfer apparatus and method, for engine/radiator cooling system |
| US5425333A (en) * | 1994-02-14 | 1995-06-20 | Wynn Oil Company | Aspiration controlled collant transfer apparatus and method, for engine/radiator cooling systems |
| EP1584302A1 (en) | 2004-04-06 | 2005-10-12 | Wolfgang Hauck | Mouth spray apparatus |
| CN106609773A (en) * | 2015-10-27 | 2017-05-03 | 北京水创新能科技有限责任公司 | Device for pumping water under action of under-pressure gas |
| US20200094277A1 (en) * | 2018-09-20 | 2020-03-26 | Lih Yann Industrial Co., Ltd. | Hand-depressing vacuum pumping device |
-
1981
- 1981-10-28 GB GB8132446A patent/GB2086488B/en not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809769A (en) * | 1987-08-20 | 1989-03-07 | Wynn Oil Company | Engine coolant flush-filtering using external gas pressure |
| US4899807A (en) * | 1987-08-20 | 1990-02-13 | Wynn Oil Company | Engine coolant flush-filtering using external gas pressure and blocked radiator fill port |
| US4901786A (en) * | 1987-08-20 | 1990-02-20 | Wynn Oil Company | Engine coolant flush-filtering using external gas pressure and radiator valving |
| US5329982A (en) * | 1991-09-16 | 1994-07-19 | Payne Gerry E | Method and apparatus for internal combustion engine coolant extractor/injector with coupling |
| US5242273A (en) * | 1991-09-16 | 1993-09-07 | Payne Gerry E | Method and apparatus for internal combustion engine coolant extractor/injector |
| WO1993006373A1 (en) * | 1991-09-16 | 1993-04-01 | Payne Gerry E | Method and apparatus for automobile coolant extractor/injector |
| GB2274686A (en) * | 1991-09-16 | 1994-08-03 | Gerry Edward Payne | Method and apparatus for automobile coolant extractor/injector |
| GB2274686B (en) * | 1991-09-16 | 1995-09-27 | Gerry Edward Payne | Method and apparatus for internal combustion engine coolant extractor/injector |
| GB2267316A (en) * | 1992-05-28 | 1993-12-01 | Kevin John Byrne | Pressurisable liquid dispenser for use relating to damp coursing of buildings |
| US5306430A (en) * | 1992-07-27 | 1994-04-26 | Wynn Oil Company | Engine coolant pressure relief method and apparatus |
| US5318700A (en) * | 1992-08-07 | 1994-06-07 | Wynn Oil Company | Engine and radiator coolant treatment and handling, enabling coolant reuse |
| US5390636A (en) * | 1994-02-14 | 1995-02-21 | Wynn Oil Company | Coolant transfer apparatus and method, for engine/radiator cooling system |
| US5425333A (en) * | 1994-02-14 | 1995-06-20 | Wynn Oil Company | Aspiration controlled collant transfer apparatus and method, for engine/radiator cooling systems |
| EP1584302A1 (en) | 2004-04-06 | 2005-10-12 | Wolfgang Hauck | Mouth spray apparatus |
| CN106609773A (en) * | 2015-10-27 | 2017-05-03 | 北京水创新能科技有限责任公司 | Device for pumping water under action of under-pressure gas |
| US20200094277A1 (en) * | 2018-09-20 | 2020-03-26 | Lih Yann Industrial Co., Ltd. | Hand-depressing vacuum pumping device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2086488B (en) | 1984-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19971028 |