EP0765404B1 - Dispositif de suspension pour un corps en rotation - Google Patents
Dispositif de suspension pour un corps en rotation Download PDFInfo
- Publication number
- EP0765404B1 EP0765404B1 EP95919411A EP95919411A EP0765404B1 EP 0765404 B1 EP0765404 B1 EP 0765404B1 EP 95919411 A EP95919411 A EP 95919411A EP 95919411 A EP95919411 A EP 95919411A EP 0765404 B1 EP0765404 B1 EP 0765404B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- running surface
- running
- holes
- strip
- 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 - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims description 14
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 230000007547 defect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- FIAFUQMPZJWCLV-UHFFFAOYSA-N suramin Chemical compound OS(=O)(=O)C1=CC(S(O)(=O)=O)=C2C(NC(=O)C3=CC=C(C(=C3)NC(=O)C=3C=C(NC(=O)NC=4C=C(C=CC=4)C(=O)NC=4C(=CC=C(C=4)C(=O)NC=4C5=C(C=C(C=C5C(=CC=4)S(O)(=O)=O)S(O)(=O)=O)S(O)(=O)=O)C)C=CC=3)C)=CC=C(S(O)(=O)=O)C2=C1 FIAFUQMPZJWCLV-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0001—Positioning the charge
- F27D2003/0006—Particulate materials
- F27D2003/0007—Circular distribution
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
- F27D2003/0045—Use of rollable bodies, e.g. balls
Definitions
- the invention relates to a suspension device for a heavy body made of rotation about a substantially vertical axis, such as for example a rotary hopper. It relates more particularly to a device of this kind which comprises, on one side, a metal tread defining a annular rolling surface and, on the other side, at least n rollers, or n is an integer larger than 3, these n rollers being arranged to take support on said rolling surface to support said rotating body.
- a device of this kind is for example known from document US-A-4,812,100, in which it is described in relation to a rotary hopper of a cell oven.
- a rotary hopper weighs, when loaded, several hundreds of tonnes. If we were to work with three support rollers spaced 120 °, each roller should be sized to take at least a third the weight of the hopper.
- pebbles we naturally have an interest in working with pebbles as small as possible. Hence the idea of working with more than three pebbles. But this idea poses problems with regard to its practical implementation.
- the problem underlying the present invention is to provide a device of the kind described in the preamble which is much simpler than the device described in document US-A-4,812,100 and which is nevertheless able to substantially correct an uneven distribution of the weight of said heavy body on more than three rollers.
- this problem is solved by means elastically compressible which are arranged below the strip of bearing so that the running surface has deformations elastic around the points of contact between the rollers and the surface of rolling.
- These elastically compressible means are on the other hand dimensioned so that said elastic deformations of the surface of enough to substantially correct an uneven distribution the weight of said heavy body on the rollers resulting from slight defects in co-flatness shingles.
- the present invention has the advantage that the suspension of the n rollers can be much simpler than that described in document US-A-4,812,100 while ensuring sufficient results from the point of view of distribution of loads between the n rollers.
- Said elastically compressible means could of course be a ring made of elastomer material that is arranged below the band rolling surface which defines the rolling surface. It will however appreciated that the present invention provides elastic means compressible which are entirely metallic. According to an execution preferential of the invention these elastically compressible means indeed comprise a metal strip provided with parallel oblong holes on the running surface. It will be appreciated that this is a solution particularly simple to make, which costs almost nothing, which does not require maintenance-free and has excellent characteristics from the point of view elastic deformations.
- the device according to the invention advantageously comprises a cylinder of support which is coaxial with the axis of rotation and has a high rigidity, a annular fixing flange supported by a first end of said cylinder support and a tread fixed on said support flange.
- the support cylinder then present near the hole fixing flange oblong parallel to the running surface.
- said support cylinder forms for example the cylindrical wall of the hopper.
- the raceway can be either integral with the rotating body, or be integral with the structure of support.
- FIG. 1 shows the upper part of a blast furnace 10 equipped with a loading device 12 with central supply.
- This device load 12 includes in particular a waiting hopper marked globally by reference 14. It is a rotary hopper which can rotate around the central axis 16 of the blast furnace 10, in order to avoid an asymmetrical supply a lock hopper 15 located below the holding hopper 14.
- the holding hopper 14 is installed on a platform 18 which is at its tower supported by a superstructure 20. The latter rests on the wall 20 of the blast furnace 10.
- the suspension of the hopper 14 on the platform 18 is produced using four rollers 24 mounted on the platform 18. These rollers 24 bear on an annular tread 26 which surrounds the hopper 14 and is integral with the latter.
- the hopper 14 includes a part upper, which includes a cylindrical wall 28, and a lower part, which comprises a frustoconical wall 30.
- the tread 26 is fixed to the lower edge of the cylindrical wall 28. This edge projects slightly towards the low relative to the joint between the cylindrical wall 28 and the frustoconical wall 30.
- Such a hopper 14 of a loading installation 12 of a blast furnace 10 weighs, when loaded, several hundred tonnes. This weight must be taken up by the support rollers 24 to be transmitted through the platform 18 and the superstructure 20 on the wall 22 of the blast furnace 10.
- the ratio (e / D) is generally very small (in other words, the eccentricity of the center of gravity G of the hopper 14 is low), which results that each of the four rollers should be sized to take up 50% of the weight of the hopper. It is also important to note that the tread 26, which is fixed to the lower front surface of the cylinder 28 with a vertical axis, can be compared to the sole of an almost infinitely rigid beam. In in other words, the tread 26 has almost no deformations.
- the reactions R 1 and R 3 each represented approximately 50% of the total weight of the hopper 14. Due at these local deformations of the rollers 24 1 and 24 3, the wall 28 has slightly collapsed. The roller 24 2 is now in contact with the running surface 34. At the same time there has been a notable redistribution of the weight of the hopper between the four rollers. In other words, the element 32 gives the metal tread 26 an elastic capacity sufficient to correct the effect of the defects of co-flatness of the four rollers 24 i by local deformations and thus obtain a better distribution of the weight. of the hopper 14 on the four rollers 24 i .
- Figure 6 shows an element of the compressible band 32 interposed between the tread 26 and the cylindrical wall 28 almost infinitely rigid.
- the compressibility of the band 32 is obtained in a clever way, by simply fitting the cylindrical wall 28, to proximity of the tread 26, of oblong holes 40 which are parallel to the rolling surface 34.
- These holes 40 are distributed in the wall 28 with symmetry of revolution, preferably in two superimposed rows.
- the oblong holes 40 of the upper row are offset by relative to the holes in the bottom row so that they cover the material between two successive holes in the bottom row.
- the effect of this arrangement particular of the oblong holes 40 will be studied using diagrams A and B of Figure 4.
- the element 32 is modeled by two ideal beams 34 'and 42' which are superimposed.
- Beam 34 'models from a deformation point of view, the running surface 34.
- the beam 42 'models from the deformation point of view, a fiber 42' located between the two rows of oblong holes 40.
- the beam 34 'rests on the beam 42 'using elastic supports 44. represent the spaces (that is to say the material of the wall) between the holes 40 of the lower row. These spaces are overhung by the holes 40 in the upper row and are therefore elastically deformable towards these oblong holes.
- the beam 42 ' is supported on rigid supports 46. These represent the material of the wall 28 overhanging the holes 40 of the lower row.
- Figure 5 shows in a section an enlargement of the location of the hopper 14 which is surrounded by a circle in Figure 1.
- an annular fixing flange 50 is fixed by welding to the element deformable 32.
- the tread 26 is screwed onto this fixing flange 50. It is moreover advantageously divided into five annular sectors of 72 ° each.
- This segmentation of the tread 26 in n + 1 segments therefore has a favorable influence on "penetration" reactions of the rollers in the running surface 34.
- An interlocking circumferential 52 also ensures easy and adequate positioning of the different segments of the tread on the flange 50. These segments can indeed be considered as wearing parts which must be replaced regularly.
- the tread 26 defines a surface of tapered bearing 34. The top of the cone which generates this surface is located below the running surface on the axis of rotation 16. It will still be noted that the tread 26 advantageously has a hollow section.
- the rolling surface of the rollers 24 is curved so as to ensure contact quasi-point of the rollers 24 with the conical rolling surface 34 along of a contact circumference. To ensure optimal recovery of efforts by the deformable element 32, this contact circumference merges with the projection of the center line of the cross section of the cylinder 28 on the running surface.
- the suspension device according to the invention has been described above with reference to referring to a rotary hopper. It could however be applied to other heavy bodies rotating around an axis (e.g. a tank, a rotating loading chute, a rotating platform etc.) when it comes use more than three support rollers to reduce the load per roller.
- an axis e.g. a tank, a rotating loading chute, a rotating platform etc.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Road Paving Machines (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Blast Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Description
- la Figure 1 est une élévation d'un haut fourneau équipé d'une trémie rotative munie d'un dispositif de suspension selon l'invention;
- les Figures 2 et 3 servent à illustrer le problème à la base de l'invention; ils montrent dans une vue en plan un dispositif avec trois galets de support (Figure 2); respectivement quatre galets de support (Figure 3);
- les Figures 4A et 48 sont des développements linéaires d'un système de suspension avec quatre galets; le système de la Figure 48 représente le système de la Figure 4A après que celui-ci a été rendu conforme à l'invention;
- la Figure 5 est une coupe par un plan vertical à travers le dispositif de suspension selon l'invention de la trémie rotative de la Figure 1;
- la Figure 6 sert à expliquer schématiquement à l'aide de deux diagrammes les déformations de la surface de roulement dans une exécution préférée du dispositif selon l'invention.
- forme des trous: rectangulaire à extrémités arrondies;
- dimensions des trous: la longueur d'un trou correspond de préférence à celle d'un arc de cercle d'un angle inférieur à 10°; la hauteur d'un trou correspond à environ un quart de sa longueur;
- agencement des trous: deux rangées de trous superposées; la longueur de l'espace entre deux trous successifs d'une rangée représente environ 80% de la longueur des trous; un trou de la deuxième rangée est symétrique par rapport au plan de symétrie de deux trous de la première rangée.
Claims (13)
- Dispositif de suspension pour un corps lourd en rotation autour d'un axe rotation (16) sensiblement vertical, notamment une trémie rotative (14), comprenant d'un côté une bande de roulement métallique (26) définissant une surface annulaire de roulement (34) et de l'autre côté au moins n galets métalliques (24), où n est un entier plus grand que trois, ces n galets (24) étant agencés de façon à prendre appui sur ladite surface de roulement (34) pour supporter ledit corps en rotation (14) autour dudit axe de rotation (16) sensiblement vertical,
caractérisé en ce que
des moyens élastiquement compressibles (32) sont agencés en-dessous de la bande de roulement métallique (26) de façon que la surface de roulement présente des déformations élastiques autour des points de contact (Pi) entre les galets (24) et la surface de roulement (34), lesdits moyens élastiquement compressibles (32) étant dimensionnés de façon que lesdites déformations élastiques soient suffisantes pour sensiblement corriger une répartition inégale du poids dudit corps lourd (14) sur lesdits galets (24) résultant de légers défauts de co-planéité des n galets (24). - Dispositif selon la revendication 1, caractérisé en ce que lesdits moyens élastiquement compressibles comprennent une bande métallique (32) munie de trous oblongs (40) parallèles à la surface de roulement (34).
- Dispositif selon la revendication 1, caractérisée parun cylindre de support (28) qui est coaxial à l'axe de rotation et présente une rigidité élevée,une bride de fixation annulaire (50) supportée par une premier extrémité dudit cylindre de support (28),une bande de roulement (26) fixée sur ladite bride de support (50),ledit cylindre de support (28) présentant à proximité de la bride de fixation (50) des trous oblongs (40) parallèles à la surface de roulement (34).
- Dispositif selon la revendication 2 ou 3, caractérisé par aux moins deux rangés de trous oblongs (40) parallèles à la surface de roulement (34), les trous de la première rangée étant décalés par rapport à ceux de la deuxième rangée.
- Dispositif selon la revendication 4, caractérisée en ce que les trous de la deuxième rangée surplombent les espaces entre les trous de la première rangée.
- Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la longueur des trous oblongs (40) est inférieure à 10°.
- Dispositif selon l'une quelconque des revendications 2 à 6, caractérisé en ce que les extrémités des trous oblongs (40) sont arrondies.
- Dispositif selon l'une quelconque des revendications 2 à 7, caractérisé en ce que l'agencement des trous oblongs (40) présente une symétrie de révolution autour de l'axe de rotation (16).
- Dispositif selon l'une quelconque des revendications 3 à 8 caractérisé en ce que la bande de roulement (26) a une section creuse.
- Dispositif selon l'une quelconque des revendications 3 à 9, caractérisé en ce que la bande de roulement (26) est segmentée en n+1 segments annulaires.
- Dispositif selon l'une quelconque des revendications 3 à 10, caractérisé en ce que la circonférence de contact entre la bande de roulement (26) et les galets (24) correspond à la projection de la section transversale dudit cylindre de support.
- Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la surface de roulement (34) est une surface conique, le sommet du cône engendrant cette surface étant situé sur l'axe de rotation, et en ce que les galets (24) de roulement ont une surface de roulement (34) bombée convexement.
- Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le chemin de roulement (34) est solidaire du corps en rotation (14), et en ce que les galets (24) sont fixés rigidement sur une plate-forme de support (18).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU88495 | 1994-06-14 | ||
| LU88495A LU88495A1 (fr) | 1994-06-14 | 1994-06-14 | Dispositif de suspension pour un corps en rotation |
| PCT/EP1995/001717 WO1995034689A1 (fr) | 1994-06-14 | 1995-05-05 | Dispositif de suspension pour un corps en rotation |
| US08/764,534 US5749820A (en) | 1994-06-14 | 1996-12-12 | Suspension device for a rotating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0765404A1 EP0765404A1 (fr) | 1997-04-02 |
| EP0765404B1 true EP0765404B1 (fr) | 1998-03-25 |
Family
ID=26640356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95919411A Expired - Lifetime EP0765404B1 (fr) | 1994-06-14 | 1995-05-05 | Dispositif de suspension pour un corps en rotation |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0765404B1 (fr) |
| JP (1) | JPH10501304A (fr) |
| CN (1) | CN1042648C (fr) |
| AU (1) | AU2525995A (fr) |
| BR (1) | BR9507419A (fr) |
| CZ (1) | CZ284396B6 (fr) |
| DE (1) | DE69501894T2 (fr) |
| LU (1) | LU88495A1 (fr) |
| WO (1) | WO1995034689A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020170277A1 (fr) * | 2019-02-21 | 2020-08-27 | Qualical International Srl | Système de transport et de distribution de calcaire dans des fours verticaux |
| CN114812193B (zh) * | 2022-06-30 | 2022-09-09 | 唐山精研实业有限责任公司 | 局部流化的水犁式密封排料器 |
| CN119394034B (zh) * | 2024-11-26 | 2025-10-31 | 中冶北方(大连)工程技术有限公司 | 一种环冷机支撑辊定位方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2613826A (en) * | 1949-10-19 | 1952-10-14 | Little Inc A | Rotary seal for furnace tops |
| FR1091259A (fr) * | 1954-01-09 | 1955-04-08 | Dingler Ets | Appareil rotatif de fermeture de fours et notamment de hauts fourneaux |
| DE965814C (de) * | 1954-07-20 | 1957-06-19 | Demag Ag | Drehwerk fuer Beschickungstrichter von Hochoefen u. dgl. Schachtoefen |
| DE1013681B (de) * | 1954-12-03 | 1957-08-14 | Dingler Werke Ag | Abdichtungsvorrichtung an drehbaren Gichtverschluessen von Schachtoefen, insbesondere Hochoefen |
| LU86824A1 (fr) * | 1987-03-24 | 1988-11-17 | Wurth Paul Sa | Piste de roulement pour une tremie rotative |
-
1994
- 1994-06-14 LU LU88495A patent/LU88495A1/fr unknown
-
1995
- 1995-05-05 BR BR9507419A patent/BR9507419A/pt not_active IP Right Cessation
- 1995-05-05 CZ CZ963656A patent/CZ284396B6/cs not_active IP Right Cessation
- 1995-05-05 JP JP8501530A patent/JPH10501304A/ja not_active Ceased
- 1995-05-05 EP EP95919411A patent/EP0765404B1/fr not_active Expired - Lifetime
- 1995-05-05 WO PCT/EP1995/001717 patent/WO1995034689A1/fr not_active Ceased
- 1995-05-05 AU AU25259/95A patent/AU2525995A/en not_active Abandoned
- 1995-05-05 DE DE69501894T patent/DE69501894T2/de not_active Expired - Fee Related
- 1995-05-05 CN CN95193306A patent/CN1042648C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69501894T2 (de) | 1998-07-23 |
| LU88495A1 (fr) | 1996-02-01 |
| EP0765404A1 (fr) | 1997-04-02 |
| CZ284396B6 (cs) | 1998-11-11 |
| CZ365696A3 (en) | 1997-04-16 |
| WO1995034689A1 (fr) | 1995-12-21 |
| JPH10501304A (ja) | 1998-02-03 |
| DE69501894D1 (de) | 1998-04-30 |
| BR9507419A (pt) | 1997-09-09 |
| CN1149320A (zh) | 1997-05-07 |
| AU2525995A (en) | 1996-01-05 |
| CN1042648C (zh) | 1999-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3364123B1 (fr) | Suiveur solaire à couplage cinématique | |
| EP1741940B1 (fr) | Palier à roulements tonneaux | |
| FR2779488A1 (fr) | Machine rotative, notamment compresseur, dispositif reglable d'insertion et d'extraction d'un groupe compresseur, et procede de maintien de ce dernier en alignement avec un carter fixe | |
| EP1190963A1 (fr) | Bâti pour supporter des contenants de symétrie cylindrique | |
| FR2578014A1 (fr) | Joint universel tripode | |
| EP0214065A1 (fr) | Prothèse de la hanche perfectionnée | |
| FR2515532A1 (fr) | Dispositif d'entrainement de broyeur a auge | |
| EP0765404B1 (fr) | Dispositif de suspension pour un corps en rotation | |
| WO2017202598A1 (fr) | Palier hydrodynamique a injecteurs et deflecteurs | |
| FR3064976B1 (fr) | Flotteur, notamment d'eolienne offshore. | |
| FR2746869A1 (fr) | Agencement de montage pour des elements rotatifs, en particulier les satellites d'un train planetaire | |
| FR3029891A1 (fr) | Train d'atterrissage a patins muni d'au moins un amortisseur, et aeronef | |
| FR2535221A1 (fr) | Broyeur a cylindres et a auge | |
| EP0001141B1 (fr) | Mode de fixation d'une pluralité de frettes métalliques sur une jante métallique | |
| FR2634543A1 (fr) | Dispositif d'injection d'air prechauffe dans un four a cuve | |
| FR2574879A1 (fr) | Articulation a rattrapage de tolerances et procede pour articuler entre eux deux elements de structure d'une machine | |
| EP0734994A1 (fr) | Blocs de lest pour grues et dispositif de fixation associé | |
| BE1014412A3 (fr) | Assemblage de plaques d'usure. | |
| FR3134246A1 (fr) | Mât modulaire | |
| FR2997685A3 (fr) | Dispositif de decharge | |
| EP0854340B1 (fr) | Dispositif support à organes d'usure interchangeables, pour une pièce tournante telle qu'un four tubulaire | |
| FR2501776A1 (fr) | Stabiliseur non rotatif a palier a rouleaux | |
| FR2699239A1 (fr) | Palier aérodynamique à film fluide. | |
| FR2749357A1 (fr) | Agencement de roulement d'orientation | |
| FR2708483A1 (fr) | Plaque de blindage à clavettes sphériques pour broyeur à boulets. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19960805 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE GB IT |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 19970703 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE GB IT |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19980326 |
|
| REF | Corresponds to: |
Ref document number: 69501894 Country of ref document: DE Date of ref document: 19980430 |
|
| ITF | It: translation for a ep patent filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20010419 Year of fee payment: 7 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020505 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20020505 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050505 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090415 Year of fee payment: 15 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101201 |