SE442981B - BLAST-MADE PLASTIC CONTAINER IN THE FORM OF A THIN PROVIDED WITH A NECK OPENING AND A LID - Google Patents
BLAST-MADE PLASTIC CONTAINER IN THE FORM OF A THIN PROVIDED WITH A NECK OPENING AND A LIDInfo
- Publication number
- SE442981B SE442981B SE8103193A SE8103193A SE442981B SE 442981 B SE442981 B SE 442981B SE 8103193 A SE8103193 A SE 8103193A SE 8103193 A SE8103193 A SE 8103193A SE 442981 B SE442981 B SE 442981B
- Authority
- SE
- Sweden
- Prior art keywords
- lid
- barrel
- neck
- outer edge
- edge
- Prior art date
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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
- B65D43/0218—Removable lids or covers without integral tamper element secured only by friction or gravity on both the inside and the outside of the mouth of the container
-
- 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
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00064—Shape of the outer periphery
- B65D2543/00074—Shape of the outer periphery curved
- B65D2543/00092—Shape of the outer periphery curved circular
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00231—Overall construction of the lid made of several pieces
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00296—Plastic
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00342—Central part of the lid
- B65D2543/00398—Reinforcing ribs in the central part of the closure
- B65D2543/00407—Reinforcing ribs in the central part of the closure radial
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00342—Central part of the lid
- B65D2543/00398—Reinforcing ribs in the central part of the closure
- B65D2543/00416—Reinforcing ribs in the central part of the closure circular
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
- B65D2543/005—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container both cup and skirt
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00953—Sealing means
- B65D2543/00962—Sealing means inserted
- B65D2543/00972—Collars or rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Closures For Containers (AREA)
Description
8103193-2 2 sammans med saltlake i försändelsebehållare. De av trä framställda tunnorna måste lagras liggande för att fisken hela tiden skall vara översköljd med saltlake. För att åstadkomma detta skall varje tunna med bestämda tidsinter- valler vridas omkring sin längdaxel. 8103193-2 2 together with brine in shipping containers. Those of wood produced barrels must be stored horizontally in order to fish should always be rinsed with brine. In order to to achieve this, each barrel with fixed time intervals embankments are rotated about its longitudinal axis.
Vid liggande och ovanpå varandra staplade tunnor inläggs mellan varje skikt av tunnor i varje rad av tunnor två plankor, som korsar tunnans längdaxel i områdena vid tunnans topp och botten. För att vrida tunnorna med av- sikt att överskölja fisken med saltlake ompackas lagren av tunnor uppifrån och nedåt och uppstaplas på nytt efter ändring av vridningsläget. 7 Eftersom metalltunnor icke kan användas för lagring och försändelse av fisk, användes trätunnor, eftersom dessa kan tåla de partiella radiella trycken vid liggande förvaring och stapling, och eftersom dessa icke angriper innehållet. Framställningen av dylika trätunnor är dyr och detsamma gäller förberedelsen för fyllning, eftersom tunnorna måste blötas i förväg för att de skall bli täta.When lying and stacked barrels on top of each other, inserts between each layer of barrels in each row of barrels two planks, which cross the longitudinal axis of the barrel in the areas at the top and bottom of the barrel. To rotate the barrels with In order to rinse the fish with brine, the layers are repackaged barrels from top to bottom and stacked again after changing the rotation mode. 7 Because metal barrels cannot be used for storage and shipment of fish, wooden barrels were used, because these can withstand the partial radial pressures when lying down storage and stacking, and because these do not attack the content. The manufacture of such wooden barrels is expensive and the same applies to the preparation for filling, since the barrels must be soaked in advance in order for them to become tight.
Det är dessutom ogynnsamt att de endast kan användas som envägs-fastage. Dessutom finns risk för brott om fyllda trätunnor störtar ner från stapelförbandet eller vid våld- sam behandling speciellt stor.In addition, it is unfavorable that they can only be used as one-way fastening. In addition, there is a risk of crime if filled wooden barrels plunge down from the staple joint or in case of same treatment especially great.
Uppfinningen har till uppgift att utforma plasttunnor av det inledningsvis beskrivna slaget så att de kan för- varas liggande utan risk för läckage som följd av det härvid i sidoriktningen på tunnans mantel partiellt verkande trycket.The object of the invention is to design plastic barrels of the kind initially described so that they can be be left lying without risk of leakage as a result in the lateral direction of the barrel shell partially acting pressure.
Dessutom vill man kunna stapla de fyllda tunnorna i flera lager ovanpå varandra också vid hög specifik ytbelastning genom inskjutna mellanliggande plankor. Härvid utnyttjas återanvändbarheten hos livsmedelsvänliga plasttunnor av vanligt slag med en behållarvolym på 120 liter eller mer.In addition, you want to be able to stack the filled barrels in several layers on top of each other even at high specific surface loads through inserted intermediate planks. This is used the reusability of food-friendly plastic barrels of ordinary kind with a container volume of 120 liters or more.
Man skall kunna stapla minst fyra lager av fyllda tunnor över varandra under lång tid.It must be possible to stack at least four layers of filled barrels over each other for a long time.
Den i tunnans halsöppning inskjutande, odeformerbara innerkanten på locket sträcker sig så långt in i tunnans öppning, att den bildar ett oeftergivligt radiellt stöd för tunnans flänsring, varvid lockets botten sträcker sig in i tunnans öppning till en nivå under flänsringens övre yta och att förstyvningsribbor är utformade mellan lockets botten och lockets innerkant, vilka förstyvningsribbor 8103193-2 3 är anbragta stjärnformigt omkring lockets inre omkrets.The one in the barrel neck opening insertion, undeformable the inner edge of the lid extends so far into the barrel opening, that it forms an inflexible radial support for the flange ring of the barrel, the bottom of the lid extending into the opening of the barrel to a level below the top of the flange ring surface and that stiffening ribs are formed between the lid the bottom and the inner edge of the lid, which stiffening ribs 8103193-2 3 are arranged star-shaped around the inner circumference of the lid.
Lockets innerkant och botten med förstärkningsribbor ger ett solitt stöd, som säkerställer att flänsringen på en liggande tunna icke deformeras och ger anledning till otätheter.The inner edge and bottom of the lid with reinforcing ribs provides a solid support, which ensures that the flange ring on a horizontal barrel is not deformed and gives rise to leaks.
I och för speciellt motståndskraftig styvning av locket är i en utföringsform av uppfinningen lockets inre kant för- längd axiellt innanför lockets botten, så att ett första ringformigt utsprång bildas, och på lockets botten finns koncentriskt med förlängningen ett andra ringformigt ut- språng, varvid de båda ringformiga utsprången är förbundna med varandra till en runtgående lådbalk genom från lockets botten utskjutande radiella ribbor. Härvid uppnås ytterligare säkerhet mot att locket ger efter under inverkan av stora belastningar.Due to particularly resistant stiffening of the lid is in an embodiment of the invention the inner edge of the lid is length axially inside the bottom of the lid, so that a first annular protrusions are formed, and on the bottom of the lid there are concentric with the extension a second annular extension jumps, the two annular projections being connected with each other to a circumferential box beam through from the lid bottom projecting radial ribs. This is further achieved safety against the lid yielding under the influence of large loads.
Vid långtidsbelastning av tunnor med stora volymer kan det i undantagsfall uppstå krökningar av avståndsribborna, så att locket förlorar stabilitet.For long-term loading of barrels with large volumes can in exceptional cases, curvatures of the spacer ribs occur, so that the lid loses stability.
För att motverka detta är lockets inre kant enligt upp- finningen stödd med en formstyv inläggningsplatta, vars yttre kant i insatt tillstånd sträcker sig till insidan av lockets inre kant, varvid inläggningsskivans yttre omkrets är försedd med inskärningar, som ger genomskärningsöppningar för för- styvningsribborna.To counteract this, the inner edge of the lid is according to the finning supported by a rigid inlay plate, the exterior of which edge in inserted state extends to the inside of the lid inner edge, the outer circumference of the insert plate being provided with incisions, which provide intersection openings for the stiffening ribs.
Inläggningsplattan kan t ex vara framställd av en kryss- fanerplatta.The insert plate can, for example, be made of a cross- veneer.
Uppfinningen beskrives närmare nedan under hänvisning till bifogade ritningar, där fig. 1 visar tunnan med påsatt lock sett från sidan och delvis i snitt, och fig. 2 visar ett delsnitt i anordningen enligt fig. 1 i större skala med insatt inläggningsplatta.The invention is described in more detail below with reference to the accompanying drawings, where Fig. 1 shows the barrel with attached lid seen from the side and partly in section, and Fig. 2 shows one partial section of the device according to Fig. 1 on a larger scale with inserted insert plate.
I Figurerna är en tunna 1 försluten med ett lock 2, som innefattar en i tunnan inskjutande innerkant 6 och en ytterkant 14, som omsluter tunnan vid dess halsöppning.In the Figures, a barrel 1 is closed with a lid 2, which comprises an inner edge 6 and one projecting into the barrel outer edge 14, which encloses the barrel at its neck opening.
Direkt på tunnans vägg eller mantelyta är på något avstånd under tunnans öppning en radiellt utåtriktad, i sig själv sluten flänsring 5 utformad. Rn hals 9 sträcker sig upp över flänsringen 5 (Pig. 2).Directly on the barrel wall or mantle surface is at some distance under the opening of the barrel a radially outward, in itself closed flange ring 5 designed. Rn neck 9 extends up over the flange ring 5 (Fig. 2).
Vid påsatt lock 2 finns en utåt avböjd yttre kantfläns 4 8103193-2 4 hos lockets ytterkant 14 mittemot flänsringen 5. I mellan- rummet mellan lockets ytterkant 14 och lockets innerkant 6 är en tätningsring 7 inlagd. Locketjlär med hjälp av en spännring 8 pressad tätande ner mot överkanten på tunnans hals 9, som sträcker sig in i mellanrummet mellan lockets ytterkant 14 och innerkant 6. Spännringen 8 griper om den koniska undersidan på flänsringen 5 och om den likaså koniskt utformade ovansidan på ytterkantflänsen 4. Vid uti- från uppträdande axiella belastningar blockeras inskjut- ningsvägen för locket 2 av flänsringen 5 på så sätt att tätningsringen 7 inte kan glida bort eller skadas.When the lid 2 is fitted, there is an outwardly deflected outer edge flange 4 8103193-2 4 of the outer edge 14 of the lid opposite the flange ring 5. In the the space between the outer edge 14 of the lid and the inner edge 6 of the lid a sealing ring 7 is inserted. Lure with the help of a clamping ring 8 pressed sealingly down towards the upper edge of the barrel neck 9, which extends into the space between the lid outer edge 14 and inner edge 6. The clamping ring 8 grips it conical underside of the flange ring 5 and if so conically shaped upper side of the outer edge flange 4. At the outer from occurring axial loads, the insertion the path of the cover 2 of the flange ring 5 in such a way that the sealing ring 7 cannot slip off or be damaged.
Den djupt indragna bottnen 3 på locket skjuter ner i behållaröppningen ända till en nivå, som ligger under fläns- ringens övre yta. Lockets innerkànt 6 är formstyv och bildar ett oeftergivligt, radiellt stöd för flänsringen 5, så att vid uppträdande radiell belastning på tunnan 1 inga ändringar av tätningsförhållandena kan inträda. Lockets botten 3 och lockets innerkant 6 är förbundna med varandra med i stjärn- form anbragda förstyvningsribbor 10.The deeply retracted bottom 3 of the lid protrudes into the container opening all the way to a level below the flange the upper surface of the ring. The inner edge 6 of the lid is rigid and forms an inflexible, radial support for the flange ring 5, so that in case of radial load on barrel 1 no changes of the sealing conditions may occur. The bottom of the lid 3 and the inner edge 6 of the lid are connected to each other by shaped fitted stiffening ribs 10.
Lockets innerkant 6 är förlängd nedåt förbi lockets botten 3 till ett ringformigt utsprång 12. Koncentriskt med detta utsprâng 12 befinner sig ett andra ringformigt utsprång 13 med mindre diameter. De båda ringformiga ut- sprången 12 och 13 är förbundna med varandra medelst på lockets botten utformade radiella ribbor 11, så att en form av lådbalk erhålles, som ger en extra, runtom löpande förstyvning av lockets botten 3 och därmed av lockets innerkant 6.The inner edge 6 of the lid is extended downwards past the lid bottom 3 to an annular projection 12. Concentric with this projection 12 there is a second annular projection 13 with smaller diameter. The two annular extensions the jumps 12 and 13 are connected to each other by means of on the bottom of the lid formed radial ribs 11, so that a form of box beam is obtained, which provides an extra, all around running stiffening of the bottom 3 of the lid and thus of the lid inner edge 6.
Såsom vidare framgår av fig. 2 är locket 2 förstärkt med en på lockets ovansida placerad, formstyv inläggnings- platta 15. Ytterkanten 16 på plattan är förd intill insidan av lockets innerkant 6. Vid inläggningsplattans 15 yttre periferi finns inskärningar 17, som tjänar såsom genomgångs- öppningar för avstyvningsribborna 10.As further shown in Fig. 2, the lid 2 is reinforced with a rigid inlay placed on the top of the lid plate 15. The outer edge 16 of the plate is moved next to the inside of the inner edge of the lid 6. At the outside of the insert plate 15 periphery there are notches 17, which serve as passageways. openings for the stiffening ribs 10.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8116015A GB2098968B (en) | 1981-05-26 | 1981-05-26 | Plastics barrel and closure |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8103193L SE8103193L (en) | 1982-11-21 |
SE442981B true SE442981B (en) | 1986-02-10 |
Family
ID=10522046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8103193A SE442981B (en) | 1981-05-26 | 1981-05-20 | BLAST-MADE PLASTIC CONTAINER IN THE FORM OF A THIN PROVIDED WITH A NECK OPENING AND A LID |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA1172204A (en) |
GB (1) | GB2098968B (en) |
SE (1) | SE442981B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668633A (en) * | 1985-03-28 | 1987-05-26 | Walton John R | Growth container and method for pathogenic and other laboratory organisms |
DE9106443U1 (en) * | 1991-05-25 | 1992-07-02 | Mauser-Werke Gmbh, 5040 Bruehl, De | |
ES1048353Y (en) * | 2001-02-15 | 2001-12-01 | Contenur Espana Sl | CONTAINER BUCK FOR SELECTIVE COLLECTION OF LIQUID WASTE. |
-
1981
- 1981-05-20 SE SE8103193A patent/SE442981B/en not_active IP Right Cessation
- 1981-05-26 GB GB8116015A patent/GB2098968B/en not_active Expired
- 1981-06-04 CA CA000379055A patent/CA1172204A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE8103193L (en) | 1982-11-21 |
GB2098968B (en) | 1985-09-04 |
GB2098968A (en) | 1982-12-01 |
CA1172204A (en) | 1984-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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