SE418582B - KERL FOR METAL MELTOR - Google Patents
KERL FOR METAL MELTORInfo
- Publication number
- SE418582B SE418582B SE7707997A SE7707997A SE418582B SE 418582 B SE418582 B SE 418582B SE 7707997 A SE7707997 A SE 7707997A SE 7707997 A SE7707997 A SE 7707997A SE 418582 B SE418582 B SE 418582B
- Authority
- SE
- Sweden
- Prior art keywords
- joints
- plates
- joint surfaces
- vessel
- ceramic
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
- F27B3/045—Multiple chambers, e.g. one of which is used for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details specially adapted for crucible or pot furnaces
- F27B14/10—Crucibles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/14—Supports for linings
- F27D1/145—Assembling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Ceramic Products (AREA)
Description
7101991-e samma tillverkningsutrustning ekonomiskt produceras ett och ett eller i små serier i nära nog varje önskad dimension och form, varigenom avsteg från optimal lay-out på användnings- platsen väsentligen helt kan undvikas. Kärlen enligt upp-- finningen är i första hand avsedda för användning i samband med gjutning av ickejärnmetaller, såsom gjutlegeringar på zink- eller aluminiumbasis. I öppna marknaden finns tillgäng- liga lättbearbetade keramiska plattor, vilka kan sågas, frä- sas och borras på ungefär samma sätt som trä och vilka tål temperaturer av 700 - 800°C. Tillverkning av keramiska plat- tor, vilka tål ännu högre temperaturer och vilka kan till- verkas till konkurrenskraftiga priser, ligger emellertid inom möjligheternas ram. Med särskild fördel komponeras därvid plattorna så, att de ej vätes, impregneras eller angripes av sådana metallsmältor som de skall utnyttjas i samband med. 7101991-e the same manufacturing equipment is economically produced one and one or in small series in almost every desired dimension and form, thereby deviating from the optimal layout of the the place can be essentially completely avoided. The vessels according to up-- the findings are primarily intended for use in connection with casting of non-ferrous metals, such as casting alloys on zinc or aluminum base. In the open market, there are easily machined ceramic tiles, which can be sawn, milled sawn and drilled in much the same way as wood and which can withstand temperatures of 700 - 800 ° C. Manufacture of ceramic tiles which can withstand even higher temperatures and which can operated at competitive prices, however, is within the framework of possibilities. With special advantage, it is composed the plates so that they are not wetted, impregnated or attacked of such molten metals as they are to be used in connection with.
Sprickrisken vid kärl enligt uppfinningen är vid normalt hand- havande av desamma i det närmaste obefintlig, eftersom de i kontakt med metallsmältor kommande plattorna ej skall brännas efter sammansättningen och eftersom de enligt uppfinningen ut- formade labyrintartade fogarna med mot varandra anpressade fogytor, samtidigt som de är läckagesäkra, tillåter smärre _ termiskt betingade rörelser.The risk of cracking in vessels according to the invention is normally having the same virtually non-existent, since they in contact with metal melts coming plates should not be burned after the composition and since according to the invention shaped labyrinthine joints with pressed against each other joint surfaces, while being leakproof, allow for minor _ thermally conditioned movements.
Ett ur läckagesynpunkt särskilt tillförlitligt och sam- tidigt lättillverkat kärl erhålles, om kärlväggarna består av dubbla, nära intill varandra belägna plattor, varvid den ena plattans periferiella kantparti skjuter förbi den sam- hörande andra plattans kantparti till bildning av nämnda fog- ytor.From a leakage point of view, it is particularly reliable and early easy-to-manufacture vessels are obtained, if the vessel walls persist of double, adjacent plates, wherein the the peripheral edge portion of one plate projects past the same belonging to the edge portion of the second plate to form said joint surfaces.
Det i fogarna såsom mellanlägg utnyttjade keramiska tät- ningsmaterialet kan vara pastaformigt, men mellanlägg av keramiskt filtmaterial, eventuellt i kombination med pasta- formig tätningsmassa, har hittills visat sig mest tillförlit- ligt.The ceramic sealant used in the joints as spacers the material may be pasty, but spaced ceramic felt material, possibly in combination with shaped sealant, has so far proved to be the most reliable ligt.
Ur värmeekommü- och arbetsmiljösynpunkt och även med hän- syn till kärlens livslängd är det fördelaktigt, om nämnda, metallsmältan kvarhållande kärlväqgar omgives av isolerings- skikt samt en dessa omslutande mantel. Såväl isolerings- 7707997-8 skikten som manteln kan därvid bestå resp. vara uppbyggd av skivor eller plattor av keramiskt material, varvid det iso- leringsskiktet bildande materialet med fördel är poröst, me- dan mantelskiktet lämpligen bör vara sådant, att det förmår kvarhålla den ifrågavarande metallsmältan under viss tid i händelse av brott på någon av nämnda kärlväggar. Isolerings- skikten kan längs de kanter, utmed vilka de ansluter sig till varandra, uppvisa vinklade eller labyrintartade fogytor på väsentligen samma sätt som de i kontakt med metallsmälta kommande, nämnda kärlväggar bildande keramiska plattorna, så att gascirkulation i isoleringsskikten i största möjliga ut- sträckning undvikes. Likaså kan isoleringsskikten i detta syfte med fördel ansluta sig till varandra via fogarna mellan dem tätande material.From a heating commune and work environment point of view and also with view of the life of the vessels, it is advantageous, if said, the metal melt retaining vessel walls are surrounded by insulating layer as well as a these enclosing mantle. Both insulation 7707997-8 the layers that the mantle can then consist of resp. be built of sheets or plates of ceramic material, the iso- the forming layer forming the material is advantageously porous, the mantle layer should suitably be such that it is capable of retain the molten metal in question for a certain period of time in event of breakage of any of said vessel walls. Insulating the layers may be along the edges along which they adhere each other, have angled or labyrinthine joint surfaces on essentially the same way as those in contact with molten metal forthcoming, said vessel walls forming the ceramic plates, so that gas circulation in the insulation layers in the greatest possible stretching is avoided. Likewise, the insulation layers can for this purpose advantageously connect to each other via the joints between them sealing material.
Uppfinningen beskrives i det följande med hänvisning till ett antal på bifogade ritning schematiskt visade utförings- former av densamma. I de olika ritningsfigurerna är överens- stämmande eller väsentligen överensstämmande detaljer åsatta samma hänvisningsbeteckningar.The invention is described in the following with reference to a number of embodiments schematically shown in the accompanying drawing forms of the same. In the different drawing figures, the consistent or substantially consistent details imposed the same reference numerals.
Fig. 1 är en vertikalsektionsvy av ett kärl enligt uppfin- ningen.Fig. 1 is a vertical sectional view of a vessel according to the invention. ningen.
Fig. 2 och 3 visar i perspektivisk vertikalsektion ett parti av en andra resp. en tredje utföringsform av kärlet enligt uppfinningen.Figs. 2 and 3 show in perspective vertical section one batch of a second resp. a third embodiment of the vessel according to the invention.
Det i fig. 1 visade kärlet har en botten 10, sidoväggar 11 och ett lock 12, som via tätningar 13 anligger mot väggarnas 11 ovankanter. En i kärlet förefintlig metallsmälta är betecknad med 14. För att säkerställa god tätning är i väggarnas 11 undre partier urfrästa eller på annat sätt utformade spår, så att det erhålles L-formade fogar, där väggarna 11 och bottnen 10 an- sluter sig till varandra. I fogarna är inlagda remsor 15, 16 av keramiskt filtmaterial, varvid fogytorna hålles anpressade mot varandra medelst skruvar 17. De vertikala hörnen, där kärlets väggar 11 möts, utformas lämpligen på motsvarande sätt som de visade horisontella hörnen vid övergången mellan väggar och botten, så att vinklade eller labyrintartade hörnfogar bildas. 7707997-e Det i fig. 2 visade kärlet skiljer sig från kärlet enligt fig. 1 huvudsakligen därigenom, att bottnen och väggarna bildas av dubbla keramiska plattor 19, 20 resp. 21, 22. Vid fogarna skjuter därvid de yttre plattornas 20, 22 kantpartier förbi tillhörande inre plattors 19, 21 kantpartier, så att det bildas väsentligen Z-formiga fogar, vilkas fogytor medelst skruvar 17 hålles anpressade mot varandra via mellanlägg 15, 16, 23 av exempelvis keramiskt filtmaterial. Mellanläggen 16 och 23 sträc- ker sig förbi fogområdena och har på det visade sättet lämpligen samma utsträckning som de yttre plattorna 20, 22: Ytterligare skruvar kan, såsom visas vid 24, vara anordnade för fastklämning av de yttre och inre plattorna 19 och 20 resp. 21 och 22 mot varandra via mellanläggen 16, 23.The vessel shown in Fig. 1 has a bottom 10, side walls 11 and a lid 12, which abuts against the walls 11 via seals 13 upper edges. A molten metal present in the vessel is designated with 14. To ensure good sealing is in the walls 11 lower batches of milled or otherwise shaped grooves, so that L-shaped joints are obtained, where the walls 11 and the bottom 10 are join each other. Strips 15, 16 are inserted in the joints of ceramic felt material, keeping the joint surfaces pressed against each other by means of screws 17. The vertical corners, where the walls 11 of the vessel meet, are suitably designed in a corresponding manner as they showed horizontal corners at the transition between walls and bottom, so that angled or labyrinthine corner joints formed. 7707997-e The vessel shown in Fig. 2 differs from the vessel according to Fig. 1 mainly by forming the bottom and the walls of double ceramic plates 19, 20 resp. 21, 22. At the joints thereby pushing the edge portions of the outer plates 20, 22 past associated edge plates 19, 21 edge portions, so that it is formed substantially Z-shaped joints, the joint surfaces of which by means of screws 17 are pressed against each other via spacers 15, 16, 23 by for example ceramic felt material. Spaces 16 and 23 passes the joint areas and has in the manner shown suitably to the same extent as the outer plates 20, 22: Further screws may, as shown at 24, be provided for clamping of the outer and inner plates 19 and 20, respectively. 21 and 22 against each other via spacers 16, 23.
Det i fig. 3 visade kärlet är en vidareutveckling av kär- let enligt fig. 2. Det skiljer sig från kärlet enligt fig. 2 huvudsakligen därigenom, att det försetts med en isolerings- konstruktion, bestående av inre och yttre porösa plattor 25, 26 av värmebeständigt, exempelvis keramiskt material. Såsom visas, är plattorna 25, 26 vid hörnen sammanfogade på väsentligen sam- ma sätt som de ovan beskrivna plattorna 19 - 22. Isoleringskon- struktionen omgives av en av keramiskta plattor 27 bildad och genom skruvar 28 sammanhållen mantelkonstruktion.The vessel shown in Fig. 3 is a further development of the vessel. Fig. 2. It differs from the vessel of Fig. 2 mainly by providing it with an insulating construction, consisting of inner and outer porous plates 25, 26 of heat-resistant, for example ceramic material. As shown, the plates 25, 26 at the corners are joined at substantially the same methods such as the plates 19 - 22 described above. the structure is surrounded by a ceramic plate 27 formed and shell construction held together by screws 28.
För kärl, vilka skall tåla temperaturer upp till ca 800°C kan plattorna 10, 11, 12, 19-22 och 27 med fördel bestå av det keramiska skivmaterial som tillhandahållas av Johns-Manville, Colorado, USA, under benämningen Marinite-XL, medan de isolera- de skivorna 25, 26 och tätningarna 13 exempelvis kan bestå av de av samma företag under beteckningen Thermo-800 resp. Cerafelt CB-1000 tillhandahâllna materialen. Mellanläggen 15, 16, 23 kan med fördel bestå av det keramiska filtmaterial som tillhandahål- les av Carborundum Co., N.Y., USA under beteckningen Fiberfrax Ceramic Fiber Paper, Grade 970 J, varvid mellanläggens tjocklek lämpligen kan uppgå till ca 3 mm., Uppfinningen är icke begränsad till de ovan beskrivna och på ritningen visade utföringsformerna, utan utförandet av den- samma kan givetvis modifieras på mångahanda sätt inom ramen för efterföljande patentkrav.For vessels, which must withstand temperatures up to about 800 ° C the plates 10, 11, 12, 19-22 and 27 may advantageously consist of it ceramic disc materials provided by Johns-Manville, Colorado, USA, under the name Marinite-XL, while the isolates the discs 25, 26 and the seals 13 may, for example, consist of those of the same company under the name Thermo-800 resp. Cerafelt CB-1000 provided the materials. Spaces 15, 16, 23 can advantageously consist of the ceramic felt material provided read by Carborundum Co., N.Y., USA under the designation Fiberfrax Ceramic Fiber Paper, Grade 970 J, with the thickness of the spacers can suitably amount to about 3 mm., The invention is not limited to those described above and shown in the drawing, without the execution of the the same can of course be modified in many ways within the framework of subsequent claims.
Claims (5)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7707997A SE418582B (en) | 1977-07-08 | 1977-07-08 | KERL FOR METAL MELTOR |
| DE2829519A DE2829519C2 (en) | 1977-07-08 | 1978-07-05 | Molten metal container |
| JP8249378A JPS5418428A (en) | 1977-07-08 | 1978-07-05 | Holding container |
| NO782361A NO782361L (en) | 1977-07-08 | 1978-07-06 | VESSELS FOR METAL MELTS. |
| US05/922,661 US4208043A (en) | 1977-07-08 | 1978-07-07 | Holding vessel |
| FR7820379A FR2396943A1 (en) | 1977-07-08 | 1978-07-07 | CONTAINER INTENDED TO RECEIVE MELTED METAL |
| GB7829119A GB2001155B (en) | 1977-07-08 | 1978-07-07 | Holding vessel |
| CH743278A CH631904A5 (en) | 1977-07-08 | 1978-07-07 | CONTAINER FOR MELTED METAL. |
| IT25491/78A IT1096943B (en) | 1977-07-08 | 1978-07-10 | CONTAINER FOR CONTAINING MELTED METAL |
| JP56204495A JPS57168765A (en) | 1977-07-08 | 1981-12-17 | Holding vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7707997A SE418582B (en) | 1977-07-08 | 1977-07-08 | KERL FOR METAL MELTOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7707997L SE7707997L (en) | 1979-01-09 |
| SE418582B true SE418582B (en) | 1981-06-15 |
Family
ID=20331832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7707997A SE418582B (en) | 1977-07-08 | 1977-07-08 | KERL FOR METAL MELTOR |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS57168765A (en) |
| CH (1) | CH631904A5 (en) |
| DE (1) | DE2829519C2 (en) |
| FR (1) | FR2396943A1 (en) |
| GB (1) | GB2001155B (en) |
| IT (1) | IT1096943B (en) |
| NO (1) | NO782361L (en) |
| SE (1) | SE418582B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8000342A (en) * | 1980-01-18 | 1981-08-17 | Theodor Johann Sevink | OVEN. |
| DE3034970C2 (en) * | 1980-09-17 | 1983-06-30 | Bleiwenz GmbH, 6920 Sinsheim | Holding furnace for molten metal |
| DE3167851D1 (en) * | 1980-10-01 | 1985-01-31 | Ants Nomtak | Vessel for molten metal and method of making it |
| DE8700542U1 (en) * | 1987-01-13 | 1988-05-11 | Chamotte- und Tonwerk Kurt Hagenburger, 6718 Grünstadt | Moulded part for the bottom lining of metallurgical melting vessels |
| US4941647A (en) * | 1989-09-12 | 1990-07-17 | Union Carbide Corporation | Protective lining for aluminum refining vessel |
| DE4426932A1 (en) * | 1994-07-29 | 1996-02-01 | Karl Schips | Light weight cast one piece oven casing |
| RU2356808C2 (en) * | 2007-06-21 | 2009-05-27 | Федеральное государственное унитарное предприятие "Российский Федеральный Ядерный Центр-Всероссийский Научно-Исследовательский Институт Технической Физики имени академика Е.И. Забабахина" (ФГУП "РФЯЦ-ВНИИТФ им. академ. Е.И. Забабахина") | Protection vessel for storing chemicals |
| DE102018129272A1 (en) * | 2018-11-21 | 2020-05-28 | Saint-Gobain Industriekeramik Rödental GmbH | Transport trough for continuous furnace |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB505617A (en) * | 1937-11-09 | 1939-05-09 | American Magnesium Metals Corp | Improvements in or relating to electric furnaces |
| GB678262A (en) * | 1944-05-20 | 1952-09-03 | Revere Copper & Brass Inc | Improvements in and relating to electric furnaces |
| GB882745A (en) * | 1959-03-31 | 1961-11-22 | Shell Int Research | Improvements in or relating to furnaces |
| GB1028652A (en) * | 1962-02-07 | 1966-05-04 | Pilkington Brothers Ltd | Improvements in or relating to furnaces |
| US3401227A (en) * | 1966-02-09 | 1968-09-10 | Trw Inc | Liner for crucibles |
| LU57030A1 (en) * | 1968-10-04 | 1970-04-06 | Glaverbel | |
| DE2320347A1 (en) * | 1973-04-21 | 1974-11-07 | Engstfeld Wilh Fa | Crucible with electrically heated base - and resistance elements arranged across base in ceramic lining |
| JPS5549033B2 (en) * | 1974-05-15 | 1980-12-09 | ||
| JPS5612239B2 (en) * | 1974-08-19 | 1981-03-19 | ||
| LU71573A1 (en) * | 1974-12-30 | 1976-11-11 | ||
| GB1544637A (en) * | 1975-11-10 | 1979-04-25 | Foseco Trading Ag | Lining of molten metal containers |
| GB1500720A (en) * | 1975-11-20 | 1978-02-08 | Fhd Furnaces Ltd | Thermal insulation of furnaces |
| FR2356106A1 (en) * | 1976-06-21 | 1978-01-20 | Feurs Fonderies Acieries Elect | Refractory lining for an induction heated melting pot - consists of ready made lining surrounded by rammed refractory, subsequently sintered before use |
-
1977
- 1977-07-08 SE SE7707997A patent/SE418582B/en not_active IP Right Cessation
-
1978
- 1978-07-05 DE DE2829519A patent/DE2829519C2/en not_active Expired
- 1978-07-06 NO NO782361A patent/NO782361L/en unknown
- 1978-07-07 CH CH743278A patent/CH631904A5/en not_active IP Right Cessation
- 1978-07-07 GB GB7829119A patent/GB2001155B/en not_active Expired
- 1978-07-07 FR FR7820379A patent/FR2396943A1/en active Granted
- 1978-07-10 IT IT25491/78A patent/IT1096943B/en active
-
1981
- 1981-12-17 JP JP56204495A patent/JPS57168765A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE7707997L (en) | 1979-01-09 |
| JPS57168765A (en) | 1982-10-18 |
| DE2829519C2 (en) | 1986-07-03 |
| IT1096943B (en) | 1985-08-26 |
| DE2829519A1 (en) | 1979-01-18 |
| CH631904A5 (en) | 1982-09-15 |
| JPS6346134B2 (en) | 1988-09-13 |
| FR2396943A1 (en) | 1979-02-02 |
| FR2396943B1 (en) | 1984-08-17 |
| GB2001155A (en) | 1979-01-24 |
| GB2001155B (en) | 1982-02-03 |
| IT7825491A0 (en) | 1978-07-10 |
| NO782361L (en) | 1979-01-09 |
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