CA1122575A - Pouring mechanism in a container for liquids which has a tubular pouring spout - Google Patents
Pouring mechanism in a container for liquids which has a tubular pouring spoutInfo
- Publication number
- CA1122575A CA1122575A CA333,518A CA333518A CA1122575A CA 1122575 A CA1122575 A CA 1122575A CA 333518 A CA333518 A CA 333518A CA 1122575 A CA1122575 A CA 1122575A
- Authority
- CA
- Canada
- Prior art keywords
- container
- flange
- pouring spout
- pouring
- spout
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/061—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
- B65D47/122—Threaded caps
Abstract
ABSTRACT OF THE DISCLOSURE
A pouring spout on a container for liquids in the form of an extendable tube which may be pulled out from the container neck to a limited extent, is provided with an inwardly extending annular flange forming a sealing lip which when the container is closed cooperates with a central plug inside a cap for the container, said inwardly extending sealing lip being adapted to engage said plug to permit the pouring spout to be moved to extended position until catch faces on the tube abut a flange in the container neck.
A pouring spout on a container for liquids in the form of an extendable tube which may be pulled out from the container neck to a limited extent, is provided with an inwardly extending annular flange forming a sealing lip which when the container is closed cooperates with a central plug inside a cap for the container, said inwardly extending sealing lip being adapted to engage said plug to permit the pouring spout to be moved to extended position until catch faces on the tube abut a flange in the container neck.
Description
1 The present invention pertains to an improved pouring mechanism in a container for liquids, e.g. a can having a tubular pouring spout. In a special embodiment o the inven~
tion, the vessel has an extendable pouring spout in the form of a tube which is movable in the axial direction in the orifice of a pipe stub or neck having external helical threads for a screw cap, the outlet end of the tube being provided with an outwardly-directed abutting and sealing flange.
Containers for liquids are normally provided merely with a relatively short outlet, spout or neck, which can be provided with external threads and closed by means of a screw-on cap. However, a somewhat longer pouring spout is often re-qùired, for example, if the site where the contents of the can are to be poured out is not easily accessible. This is true, for example, for cans containing motor oil, because the oil tank opening on the engine is often difficult to reach with a can having a short spout.
Cans with elongated spouts are available on the market, e.g. in the form of an e~tendable pouring spout in the form of a tube whi~h is movable in the axial direction in the orifice of a pipe stub or neck on the vessel. Experience has shown, how-ever, that this type of long pouring spout has an unfortunate side-effect: The air which must enter the can to compensate for the contents pouring out has a tendency to pass through the pouring spout in the form of large bubbles, causing the contents of the can to be poured out in spurts, which can easily result in spilling. Because of this, cans with long pouring spouts have not been used to the wide extent which might otherwise have been the case.
The purpose of the present invention is to elimina~e ~Z2S7S
1 the above disadvantage so that spurt-like pouring from a can with a long pouring spout can be avoided, in that the air flow-ing into the can passes the pouring spout in the ~orm of small bubbles.
This is obtained according to the invention through a modification of a container for liquids, e.g. a can, having an extendable pouring spout in the form of an internal tube which is movable in the axial direction in the orifice of a pipe stub or neck having external threads for a screw-on cap, in which the outlet of the tube is provided with an outwardly-directed abutting and sealing flange. A can of this general type is known from British Patent No. 986,684, for example. The characteristic feature of the invention is an inwardly-directed flange on the spout which is formed as a sealing lip which, when the container is closed, cooperates with a central plug inside the screw-on cap, the inwardly-directed sealing lip on the spout being adapted to fit the internal plug in the cap with a pressure-fit sufficiently tight to permit the spout to be drawn out into the pouring position through the neck of the container when the cap is unscre~ed and lifted of. In this csnnection, it is also preferable that an annular, radially-directed bead be prcvided at the bottom, Eree end of the plug.
To facilitate the insertion of the plug on the cap into the annular sealing lip, it is advantageous that the annular seal-ing lip slope inwards and downwards toward the center oE the pouring spout.
With this design, the air merely has to pass a rather narrow threshold, viz., the inwardly-directed, annular flange.
Interior of the annular flange, an air pocket forms which extends all the way in to the inner edge of the pouring spout~
Z~7~
1 Air from the air pocket will flow continuously into the can to compensate for the contents of -the can which are being poured out, and air from the atmosphere will press over the annular flange in the form of small bubbles and flow into the air pocket. One thereby obtains an especially smooth pouring with-out spurts.
A further improvement of the seal is obtained in that the outlet of the container neck is beveled at the internal edge of the inwardly-directed flange thereon, and that the transition area between the pouring spout and its outwardly-directed flange has a corresponding beveled configuration. A
conical section on the pouring spout will thus fit and seal against a corresponding conical section on the flange in the container neck.
The invention will be further elucidated with re-ference to the drawings, which illustrate two exemplary embodiments of the invention.
Figure 1 shows a container provided with an extend-able pouring spout, in partial cross section.
~ Figure 2 is a modified embodiment of a container with an ext~ndable pouring spout, also in partial cross section.
Figure 3 is a detail drawing of the lower portion of the extendable pouring spout of Fig. 2.
Figure 4 is a detail drawing, on an enlarc~ed scale, of the outlet section of the pouring spout of Fig. 2.
In the relatively simple embodiment shown on Fig. 1, a container 1 is provided with a neck or pipe stub 2 having external threads 3, adapted to -engage with a screw cap 4 having internal threads 5. The upper, outer edge of the neck 2 is provided with an inwardly-directed flange 6. An extendable - l~.;ZZS7~
1 pouring spout 7 is arranged in the neck 2, the outlet end o~
the spout being provided in a conventional way with an outward-ly-directed flange 8. When the can is closed, this flange is adapted to function as a gasket between the screw-on cap 4 and the neck 2. In accordance with the invention, the outlet end of the pouring spout 7 is also provided with an annular, inwardly-directed flange 9, which serves to restrict the passageway for the spout.
The embodiment illustrated on Fig. 2 has many features in common with the embodiment of Fig. 1, and the portions there-of which correspond to those in Fig. 1 are designated by the same reference numbers. The difference is that the inwardly-directed annular flange 9 forms a downwardly-sloping sealing lip which cooperates with a cylindrical plug 10 on the cap 4.
~n addition, the inwardly-directed flange 6 on the neck 2 is provided with a beveled edge 11 (see Fig. 4), and the transition area between the outwardly-directed flange 8 and the pouring spout 7 also has a beveled configuration 12. The beveled edge 11 on the neck and the beveled portion 12 on the pouring spout will abut when the can is closed, thus providing an e~tra seal.
Th~ dimensions of the sealing lip 9 relative to the plug 10 are such that the lip will be pressure-fitted around the plug when the can is closed. Therefore, when the cap 4 is unscrewed and lifted up, the pouring spout 7 will follow along and be drawn out until protruding catch surfaces 13 or pawls provided on the lower portion of the pouring spout encounter the bottom face of the flange 6 in the neck 2. When the cap is pulled further, it will of course be pulled off. To increase the friction between the sealing lip 9 and the plug 10, the latter is provided with a radial, outwardly-directed annular bead 10' ~I~Z;~575 1 at the lower edge thereof. ~s can best be seen on Fig. 4, the pouring spout 7 is positioned so as to have good clearance in the neck 2, so that it can easily be pulled out. The lower portion of the pouring spout 7 expands conically at a section 14 to a section 15 of greatest diameter, where the catch sur-faces 13 are located. Past this point, the pouring spout again narrows down toward the free, inner end 17 thereof. The material in the conical end section 16 becomes thinned out toward the free end 17, as can be seen most clearly on Fig. 3.
This spout configuration, which is known from the previously-mentioned British Patent No. 986,684, has two purposes.
Firstly, the conical section 14 is held by friction in the opening in the neck 2 at the flange 6, so that the pouring spout 7 does not fall back into the can when it becomes detached from the cap 4. Secondly, the conical end section 16 serves to facilitate the insertion of the pouring spout 7 into the nec~c 2 of the can when the pouring spout is being installed. The pouring spout 7 is preferably made of pliable plastic.
Figure 4 shows how an air pocket 1~ will be formed behind the annular lip 9 as the liquid contents 20 of the con-tainer 1 are being poured out. The air will enter into the can in the form of small bubbles 19 which press in beneath the annular lip 9 and into the air pocket 18. The bubbles arè small o~ing to the little distance they are requirea to cover from the atmosphere and into the pocket. If the air pocket were not there, the air would be forced to pass over a threshold of quite other dimensions, i.e., the entire length of the pouring spout 7. In that case, a much greater partial vacuum would have to build up in the can before a bubble could manage to squeeze past this broad threshbld, and the bubble would then assume larger dimensions than the small bubbles 19, thus causing the contents of the container to pour out in spurts.
tion, the vessel has an extendable pouring spout in the form of a tube which is movable in the axial direction in the orifice of a pipe stub or neck having external helical threads for a screw cap, the outlet end of the tube being provided with an outwardly-directed abutting and sealing flange.
Containers for liquids are normally provided merely with a relatively short outlet, spout or neck, which can be provided with external threads and closed by means of a screw-on cap. However, a somewhat longer pouring spout is often re-qùired, for example, if the site where the contents of the can are to be poured out is not easily accessible. This is true, for example, for cans containing motor oil, because the oil tank opening on the engine is often difficult to reach with a can having a short spout.
Cans with elongated spouts are available on the market, e.g. in the form of an e~tendable pouring spout in the form of a tube whi~h is movable in the axial direction in the orifice of a pipe stub or neck on the vessel. Experience has shown, how-ever, that this type of long pouring spout has an unfortunate side-effect: The air which must enter the can to compensate for the contents pouring out has a tendency to pass through the pouring spout in the form of large bubbles, causing the contents of the can to be poured out in spurts, which can easily result in spilling. Because of this, cans with long pouring spouts have not been used to the wide extent which might otherwise have been the case.
The purpose of the present invention is to elimina~e ~Z2S7S
1 the above disadvantage so that spurt-like pouring from a can with a long pouring spout can be avoided, in that the air flow-ing into the can passes the pouring spout in the ~orm of small bubbles.
This is obtained according to the invention through a modification of a container for liquids, e.g. a can, having an extendable pouring spout in the form of an internal tube which is movable in the axial direction in the orifice of a pipe stub or neck having external threads for a screw-on cap, in which the outlet of the tube is provided with an outwardly-directed abutting and sealing flange. A can of this general type is known from British Patent No. 986,684, for example. The characteristic feature of the invention is an inwardly-directed flange on the spout which is formed as a sealing lip which, when the container is closed, cooperates with a central plug inside the screw-on cap, the inwardly-directed sealing lip on the spout being adapted to fit the internal plug in the cap with a pressure-fit sufficiently tight to permit the spout to be drawn out into the pouring position through the neck of the container when the cap is unscre~ed and lifted of. In this csnnection, it is also preferable that an annular, radially-directed bead be prcvided at the bottom, Eree end of the plug.
To facilitate the insertion of the plug on the cap into the annular sealing lip, it is advantageous that the annular seal-ing lip slope inwards and downwards toward the center oE the pouring spout.
With this design, the air merely has to pass a rather narrow threshold, viz., the inwardly-directed, annular flange.
Interior of the annular flange, an air pocket forms which extends all the way in to the inner edge of the pouring spout~
Z~7~
1 Air from the air pocket will flow continuously into the can to compensate for the contents of -the can which are being poured out, and air from the atmosphere will press over the annular flange in the form of small bubbles and flow into the air pocket. One thereby obtains an especially smooth pouring with-out spurts.
A further improvement of the seal is obtained in that the outlet of the container neck is beveled at the internal edge of the inwardly-directed flange thereon, and that the transition area between the pouring spout and its outwardly-directed flange has a corresponding beveled configuration. A
conical section on the pouring spout will thus fit and seal against a corresponding conical section on the flange in the container neck.
The invention will be further elucidated with re-ference to the drawings, which illustrate two exemplary embodiments of the invention.
Figure 1 shows a container provided with an extend-able pouring spout, in partial cross section.
~ Figure 2 is a modified embodiment of a container with an ext~ndable pouring spout, also in partial cross section.
Figure 3 is a detail drawing of the lower portion of the extendable pouring spout of Fig. 2.
Figure 4 is a detail drawing, on an enlarc~ed scale, of the outlet section of the pouring spout of Fig. 2.
In the relatively simple embodiment shown on Fig. 1, a container 1 is provided with a neck or pipe stub 2 having external threads 3, adapted to -engage with a screw cap 4 having internal threads 5. The upper, outer edge of the neck 2 is provided with an inwardly-directed flange 6. An extendable - l~.;ZZS7~
1 pouring spout 7 is arranged in the neck 2, the outlet end o~
the spout being provided in a conventional way with an outward-ly-directed flange 8. When the can is closed, this flange is adapted to function as a gasket between the screw-on cap 4 and the neck 2. In accordance with the invention, the outlet end of the pouring spout 7 is also provided with an annular, inwardly-directed flange 9, which serves to restrict the passageway for the spout.
The embodiment illustrated on Fig. 2 has many features in common with the embodiment of Fig. 1, and the portions there-of which correspond to those in Fig. 1 are designated by the same reference numbers. The difference is that the inwardly-directed annular flange 9 forms a downwardly-sloping sealing lip which cooperates with a cylindrical plug 10 on the cap 4.
~n addition, the inwardly-directed flange 6 on the neck 2 is provided with a beveled edge 11 (see Fig. 4), and the transition area between the outwardly-directed flange 8 and the pouring spout 7 also has a beveled configuration 12. The beveled edge 11 on the neck and the beveled portion 12 on the pouring spout will abut when the can is closed, thus providing an e~tra seal.
Th~ dimensions of the sealing lip 9 relative to the plug 10 are such that the lip will be pressure-fitted around the plug when the can is closed. Therefore, when the cap 4 is unscrewed and lifted up, the pouring spout 7 will follow along and be drawn out until protruding catch surfaces 13 or pawls provided on the lower portion of the pouring spout encounter the bottom face of the flange 6 in the neck 2. When the cap is pulled further, it will of course be pulled off. To increase the friction between the sealing lip 9 and the plug 10, the latter is provided with a radial, outwardly-directed annular bead 10' ~I~Z;~575 1 at the lower edge thereof. ~s can best be seen on Fig. 4, the pouring spout 7 is positioned so as to have good clearance in the neck 2, so that it can easily be pulled out. The lower portion of the pouring spout 7 expands conically at a section 14 to a section 15 of greatest diameter, where the catch sur-faces 13 are located. Past this point, the pouring spout again narrows down toward the free, inner end 17 thereof. The material in the conical end section 16 becomes thinned out toward the free end 17, as can be seen most clearly on Fig. 3.
This spout configuration, which is known from the previously-mentioned British Patent No. 986,684, has two purposes.
Firstly, the conical section 14 is held by friction in the opening in the neck 2 at the flange 6, so that the pouring spout 7 does not fall back into the can when it becomes detached from the cap 4. Secondly, the conical end section 16 serves to facilitate the insertion of the pouring spout 7 into the nec~c 2 of the can when the pouring spout is being installed. The pouring spout 7 is preferably made of pliable plastic.
Figure 4 shows how an air pocket 1~ will be formed behind the annular lip 9 as the liquid contents 20 of the con-tainer 1 are being poured out. The air will enter into the can in the form of small bubbles 19 which press in beneath the annular lip 9 and into the air pocket 18. The bubbles arè small o~ing to the little distance they are requirea to cover from the atmosphere and into the pocket. If the air pocket were not there, the air would be forced to pass over a threshold of quite other dimensions, i.e., the entire length of the pouring spout 7. In that case, a much greater partial vacuum would have to build up in the can before a bubble could manage to squeeze past this broad threshbld, and the bubble would then assume larger dimensions than the small bubbles 19, thus causing the contents of the container to pour out in spurts.
Claims (3)
1. An improved pouring mechanism in a container for liquids, having an extensible pouring spout in the form of a tube which is movable in the axial direction in the orifice of a container neck or pipe stub having external threads for a screw cap, the outlet of the tube being provided with an outwardly-directed abutting and sealing flange, and an inwardly-directed flange, which, when the container is closed, cooperates with a central plug inside the cap, said inwardly-directed flange being adapted to engage with the central plug in the cap with a press-fit sufficiently tight to permit the pouring spout to be drawn outward through the container neck when the cap is un-screwed and lifted off, until protruding catch surfaces on the spout encounter the inner face of the container neck, characterized in that the flange is formed as a sealing lip which slopes inwards and downwards in the pouring spout.
2. An improved pouring mechanism according to claim 1 characterized in that the outlet of the container neck is beveled, and that the transition region between the pouring spout and its outwardly-directed flange is correspondingly beveled in order thereby to form an extra seal.
3. An improved pouring mechanism according to claim 1, the container neck being provided with an inwardly directed annular flange, the inner and upper edge of said flange being beveled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO782745 | 1978-08-11 | ||
| NO782745A NO144696C (en) | 1978-08-11 | 1978-08-11 | DEVICE FOR BASKET FOR A FLUID WITH A TUBE-shaped poured spout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1122575A true CA1122575A (en) | 1982-04-27 |
Family
ID=19884367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA333,518A Expired CA1122575A (en) | 1978-08-11 | 1979-08-10 | Pouring mechanism in a container for liquids which has a tubular pouring spout |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP0008282A1 (en) |
| JP (1) | JPS5529495A (en) |
| AR (1) | AR218756A1 (en) |
| AU (1) | AU4970379A (en) |
| BR (1) | BR7905174A (en) |
| CA (1) | CA1122575A (en) |
| DK (1) | DK146384C (en) |
| ES (1) | ES251737Y (en) |
| FI (1) | FI66573C (en) |
| GB (1) | GB2028286B (en) |
| GR (1) | GR72944B (en) |
| NO (1) | NO144696C (en) |
| NZ (1) | NZ191190A (en) |
| PT (1) | PT70033A (en) |
| ZA (1) | ZA794110B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT8322185V0 (en) * | 1983-06-22 | 1983-06-22 | Victor Wassilieff | CLOSING DEVICE FOR FLUID CONTAINERS. |
| FR2552402B1 (en) * | 1983-09-28 | 1988-07-15 | Astra Plastique | CLOSURE DEVICE WITH TELESCOPIC POURER FOR CAN OR OTHER CONTAINER |
| FR2555140B1 (en) * | 1983-11-21 | 1988-02-26 | Millet Cie Ets Marius | CONTAINER DEVICE FOR CONTAINER AS WELL AS CONTAINERS PROVIDED WITH THIS DEVICE |
| DE3444092A1 (en) * | 1984-12-04 | 1986-06-05 | Uwe 4800 Bielefeld Potreck | BOTTLE CLOSURE, ESPECIALLY TUBULAR GLASS TYPE (e.g. AROMA BOTTLES), CONSISTING OF A CAP AND POURING DEVICE |
| US4726491A (en) * | 1986-04-11 | 1988-02-23 | Moon James R | Pullout spout container and method |
| JPH0287760U (en) * | 1988-12-27 | 1990-07-11 | ||
| DE4227583A1 (en) * | 1992-08-20 | 1994-02-24 | Berg Jacob Gmbh Co Kg | Telescopic lock |
| GB9511645D0 (en) * | 1995-06-08 | 1995-08-02 | Ind Containers Ltd | Lid with intergrally moulded pouring spout and method of making it |
| CA2624060A1 (en) * | 2008-04-02 | 2009-10-02 | Kenneth L. Macdougall | Fuel dispensing spout |
| CN110104318B (en) * | 2019-05-06 | 2023-06-16 | 王崇恩 | Liquid container |
| CN110626625A (en) * | 2019-10-08 | 2019-12-31 | 蔡灵明 | Sealing structure of lateral flow preventing container |
| CN112607213B (en) * | 2020-12-19 | 2022-08-02 | 烟台海普制盖有限公司 | Container and bottle cap thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2173712A (en) * | 1938-06-24 | 1939-09-19 | Wheeling Steel Corp | Container |
| GB869398A (en) * | 1959-06-29 | 1961-05-31 | Metal Box Co Ltd | Improvements in or relating to pouring devices for containers |
| FR1306751A (en) * | 1961-09-09 | 1962-10-19 | Seprosy | Improvement in closing devices, with retractable vesenr spout, for containers |
| FR1543442A (en) * | 1967-09-13 | 1968-10-25 | Clement Gaget Ets | Pouring tube assembly |
-
1978
- 1978-08-11 NO NO782745A patent/NO144696C/en unknown
-
1979
- 1979-01-25 GB GB7902656A patent/GB2028286B/en not_active Expired
- 1979-08-01 EP EP79850073A patent/EP0008282A1/en not_active Ceased
- 1979-08-02 NZ NZ191190A patent/NZ191190A/en unknown
- 1979-08-06 PT PT70033A patent/PT70033A/en unknown
- 1979-08-06 FI FI792439A patent/FI66573C/en not_active IP Right Cessation
- 1979-08-08 AU AU49703/79A patent/AU4970379A/en not_active Abandoned
- 1979-08-08 DK DK332279A patent/DK146384C/en active
- 1979-08-08 ZA ZA00794110A patent/ZA794110B/en unknown
- 1979-08-09 GR GR59810A patent/GR72944B/el unknown
- 1979-08-10 BR BR7905174A patent/BR7905174A/en unknown
- 1979-08-10 CA CA333,518A patent/CA1122575A/en not_active Expired
- 1979-08-10 ES ES1979251737U patent/ES251737Y/en not_active Expired
- 1979-08-10 JP JP10138679A patent/JPS5529495A/en active Pending
- 1979-08-10 AR AR277680A patent/AR218756A1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| GB2028286A (en) | 1980-03-05 |
| DK146384B (en) | 1983-09-26 |
| NZ191190A (en) | 1983-04-12 |
| BR7905174A (en) | 1980-04-22 |
| FI792439A (en) | 1980-02-12 |
| DK332279A (en) | 1980-02-12 |
| NO144696B (en) | 1981-07-13 |
| ZA794110B (en) | 1980-09-24 |
| FI66573B (en) | 1984-07-31 |
| ES251737Y (en) | 1981-11-01 |
| EP0008282A1 (en) | 1980-02-20 |
| GB2028286B (en) | 1983-02-16 |
| FI66573C (en) | 1984-11-12 |
| ES251737U (en) | 1981-02-01 |
| NO782745L (en) | 1980-02-12 |
| PT70033A (en) | 1979-09-01 |
| JPS5529495A (en) | 1980-03-01 |
| NO144696C (en) | 1981-10-21 |
| AU4970379A (en) | 1980-02-14 |
| DK146384C (en) | 1984-03-05 |
| AR218756A1 (en) | 1980-06-30 |
| GR72944B (en) | 1984-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |