EP0038270B1 - Mittel zum Unterstützen und Verschieben eines Werkzeuges an der Innenseite eines Loches - Google Patents
Mittel zum Unterstützen und Verschieben eines Werkzeuges an der Innenseite eines Loches Download PDFInfo
- Publication number
- EP0038270B1 EP0038270B1 EP81400600A EP81400600A EP0038270B1 EP 0038270 B1 EP0038270 B1 EP 0038270B1 EP 81400600 A EP81400600 A EP 81400600A EP 81400600 A EP81400600 A EP 81400600A EP 0038270 B1 EP0038270 B1 EP 0038270B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- penetration
- axis
- carrying bar
- centering
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/08—Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/306216—Randomly manipulated, work supported, or work following device
- Y10T409/306384—Randomly manipulated, work supported, or work following device with work supported guide means
- Y10T409/30644—Randomly manipulated, work supported, or work following device with work supported guide means to guide tool to move in arcuate path
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/306664—Milling including means to infeed rotary cutter toward work
- Y10T409/30756—Machining arcuate surface
Definitions
- the invention relates to a device for supporting and moving a tool inside a nozzle passing through a wall so as to be flush with one side of the wall and protruding from the other side.
- outlets or arrivals of pipes in the vessel, or tappings are formed in the wall of the vessel so as to allow connection, outside of this tank, between the tapping and an arrival or departure pipe.
- Such tappings are formed in the wall so that the tapping is flush with the internal surface of the tank and is fairly widely projecting outside the tank for its connection with a pipe of the primary circuit of the reactor bringing the water under pressure. in the tank or, on the contrary, allowing the exit of this water which acts as a coolant in the reactor core, outside the tank for its sending to the steam generators.
- the internal surface of the tank, as well as the internal surface of the nozzles, must be coated with a layer of stainless steel and it is necessary to carry out a quality control of this coating, in particular inside the nozzles made in the wall of the tank.
- the machining or controls inside the taps of the primary circuit are generally carried out when the tank is in the vertical position, that is to say with taps whose axes are practically horizontal.
- the proper execution of the work inside the nozzle is limited by the fact that accessibility is not very good, the internal diameter of this nozzle being relatively small. In some cases, the space available is not even sufficient to allow the use of certain tools.
- the taps of the pressurized water inlet pipes to the reactor vessel have, on the other hand, a tapered bore which further complicates manual machining operations in order to achieve a good surface condition.
- U.S. Patent No. 4161127-A describes a device for machining the inner surface of a nuclear reactor vessel in the vicinity of a nozzle and around the latter, for the repair of cracks.
- This device comprises a centering piece disposed inside the tapping, a tool support carried by the projecting end of the tapping and a tool bar mounted rotatably in the centering piece and in the support, directed along the axis of the stitching and associated with rotation drive means carried by the support.
- the bar At its end opposite to the support, inside the tank, the bar carries a cutting tool which can move axially with the bar, for a small distance and radially with respect to the bar, during the rotation of the latter .
- Such a device can only be used for machining inside the tap since the centering piece occupies a large part of the internal volume and surface of this tap and the tool bar can only move axially over a very short distance corresponding to the penetration depth of the tool.
- the tapping ensures the fixing and centering along its axis of the tool bar, the support and actuation means of which are arranged outside the tank, the tool working inside the tank only.
- this device does not make it possible to adjust the tool as a function of the shape and size of the stitching.
- the object of the invention is therefore to propose a device for supporting and moving a tool inside a nozzle having a symmetry of revolution and passing through a wall so as to be flush with one side of the wall and to be protruding on the other side, comprising a centering piece inside the tap, a support means fixed centrally at one end of the tap and a tool bar rotatably mounted around the axis of the tap in bearings carried by the centering piece and the support means and associated with rotation means, the device allowing automation of the work carried out with the tool, precise positioning of the tool at any point on the internal surface of the tapping and an adaptation to different types of profiles and to different dimensions of the internal bore of the tapping.
- the internal bore 3 of the tap 2 is of cylindrical shape.
- the device for supporting and moving a grinding tool in the tapping bore shown in FIG. 1 comprises a handling chassis 6, a star support 7, a tool bar 8 and a centering bell 9.
- the handling chassis is constituted by a bracket formed by two beams 10 and 11 of rectangular section, the beam 10 being arranged vertically and the beam 11 horizontally when the device is in position inside the tank 1 vertical.
- the horizontal beam 11 carries a handling lug 12 allowing the transport of the device as a whole with an overhead crane.
- This beam 11 is supported on the upper part of the tank 1 by means of two supports 13 constituted by screws allowing the verticality of the handling chassis to be adjusted in position on the tank.
- a means of fixing the handling chassis to the tank consisting of an arm 14 held in position at the end of the beam 11 by pins 15 introduced into openings of the fixing arm 14.
- a screw 16 allows the handling chassis to be locked in position on the upper part of the tank.
- the handling chassis 6 also carries an electrical cabinet 17 allowing the supply of the motor components of the device.
- the handling chassis 6 is connected to the star support device 7 by bolting at a junction plate 18 ensuring the connection between the lower end of the handling chassis and one of the branches of the star support 7.
- the support 7 consists of three branches 7a, 7b, 7c arranged with, for the plane of symmetry, planes containing the axis xx 'of the branching called radial planes.
- the branches 7a, 7b, 7c are arranged with a certain inclination relative to the vertical in a radiating manner with respect to the nozzle when the device is in position as shown in FIG. 1.
- the branch 7a is formed at its end by a beam portion 19 allowing the connection of the branch 7a with the frame 6.
- This end portion 19 of the branch 7a carries, on the other hand, a suction cup 20 whose position is adjustable with respect to the branch 7a by means of a screw 21.
- the beam 19 also carries a centering bracket 23 intended to come to engage in the orifice of the bore 3 flush with the internal surface 1a of the tank, this bracket itself carrying a lug 24 allowing the support on the internal surface 1a of the tank.
- the branches 7b and 7c respectively comprise adjustable suction cups 20b and 20c and support brackets 23b and 23c arranged at the end of the oblique branches 7b and 7c to allow the centering and the attachment of the device on the internal surface of the tank at the nozzle.
- the pins 24b and 24c associated with the arms 7b and 7c respectively are adjustable by means of jacks 22.
- a bearing 25 in which a shaft 26 is pivoted in an axial direction relative to the nozzle.
- the shaft 26 is connected to the tool bar 8 by means of a device 30 allowing an inclination adjustment.
- the device 30 will be described in more detail with reference to FIGS. 3 and 4.
- a flywheel 31 making it possible to manually rotate the shaft 26 from a work floor inside the tank.
- the end of the shaft 26 is also secured to a toothed wheel 34, meshing with a pinion 35, driven by a motor 36 carried by the branch 7a of the star.
- the centering bell 9 introduced into the protruding end of the nozzle comprises a cylindrical jacket 38 carrying, on its external surface, sliding pads such as 39 facilitating the introduction of the centering bell in the nozzle, and an inflatable seal 40 disposed inside a groove machined in a projecting part of the external surface of the bell 38.
- a bearing 41 constituted by a tube made integral with the bottom of the bell 38 by ribs 42.
- a shaft 44 connected in an articulated manner to the end of the tool bar 8 as will be explained with reference to FIG. 2.
- the shafts 26 and 41 are aligned and arranged axially with respect to the nozzle, that is to say, in the case of FIG. 1, in a horizontal direction.
- the tool bar 8 is provided over its entire length with a dovetail profile slide 46 and a screw 47 mounted in bearings such as 48 allowing the movement of the tool 50 constituted by a grinding wheel and its drive motor in the axial direction of the stitching.
- the shaft 44 is secured to a bracket 50, the horizontal part of which enables the tool-holder bar 8 to be fixed in a precise position with regard to its orientation relative to the shaft 44.
- the bar 8 is secured a sleeve 51 in the central bore of which passes an axis 52 fixed, relative to the bracket, by means of screws 53 and, relative to the sleeve 51, by a nut 54 engaged on the threaded upper end of the shaft 52. Openings in the sleeve 51 and keys 55 make it possible to maintain the shaft 8 in a constant angular position relative to the shaft 44 of axial direction, if we consider a rotation around the axis 52.
- the longitudinal axis yy 'of the tool bar 8 is offset in the radial direction relative to the axis xx' of the tapping.
- the shaft 44 is pierced at its center with a channel 57 allowing the supply of control fluid to the inflatable seal 40.
- the plate 62 has two holes 63a inside which pass screws 63b making it possible to secure the shaft 26 and the tool bar 8.
- the tool bar 8 is secured to a fixing plate 61, however a support plate 60 is interposed between the plate 62 secured to the shaft 26 and the plate 61 secured to the support bar d tool 8.
- the support plate 60 is pierced with holes 68 centered on the vertical axis of this plate 60.
- the concordance between the holes 63a and 68 makes it possible to secure the plates 60 and 62 by means of the screws 63b.
- the plate 61 secured to the tool bar 8 comprises two sets of two threaded holes 67 whose spacing corresponds to the spacing of the holes 63a of the plate 62.
- a first set of holes 67 of the plate 61 has been placed in accordance with the holes 63a and 68, so that the screws 63b allow the shaft 26 and the tool bar to be secured so that the axis of this tool bar 8 is parallel to the axis of the shaft 26, that is to say to the axis of the nozzle.
- the second set of holes 67 when brought into concordance with the holes 63a and 68, allows the plate 61 to be placed in the position 61 'shown in broken lines in FIG. 3. For this, it suffices to unscrew the screws 63b and to move the plate 61 integral with the tool-holder bar 8 downwards, then to rotate it slightly to bring the holes 67 in line with the holes 63a and 68. The shaft 26 and the tool bar 8 can then be secured again using the screws 63b which are fixed in the second set of holes 67 of the plate 61.
- the axis of the tool bar 8 is then inclined relative to the axis of the shaft 26, that is to say relative to the axis of the tap 2.
- the device is then in the position shown in FIG. 6.
- the arrangement of the two sets of holes 67 on the plate 61 is chosen so as to bring the axis of the tool-holder bar in the direction of a generator of the cone constituting the bore of the tap 2 'shown in FIG. 6.
- the tappings are of two types, some with cylindrical internal bore, and the others with conical internal bore.
- a plate comprising two sets of holes 67 as shown; the device can therefore be obtained very quickly and very easily from the machining position in a cylindrical bore to the machining position in a conical bore.
- the grinding wheel of the tool 50 can then describe a conical surface corresponding to the interior surface of the bore.
- the assembly of the tool 50 is seen, consisting of a grinding wheel 70 mounted on an axis 71 driven by a motor 72 by means of a belt 73.
- All of the tools are fixed to a frame 74 mounted sliding on the dovetail slide 46 secured to the tool bar 8.
- the frame 74 carries a nut 75 in engagement with the screw endless 47 driven in rotation by a motor carried by the tool bar 8.
- the axis 71 of the grinding wheel 70 is, on the other hand, rotatably mounted in a barrel 77 which can be moved along its axis by a jack 78, relative to the frame 74 of the tool. The penetration movements of the grinding wheel in the coating metal of the tapping bore are thus carried out.
- a set of pulleys 79 makes it possible to send the electrical wires or fluid supply tubes to the various motors or jacks carried by the tool bar and the tools.
- the device is then introduced into the nozzle by carrying out its handling using the lifting lug 12 until the bell is in its final position at the end of the protruding part of the nozzle.
- the pins 24 are placed in position against the internal wall of the tank and the seal 40 of the bell 28 is inflated by sending the seal control fluid through the central channel 57 of the shaft 44.
- suction cups 20 are then adjusted by action on the screws 21 so that these suction cups come into contact with the internal wall of the tank.
- These suction cups 20 obviously have a contact surface constituting a cylinder portion to allow them to perfectly match the internal surface of the tank.
- suction cups are then placed under vacuum, which keeps the device in place independently of any other support.
- step-by-step advance of the grinding wheel in the axial direction and rotate the tool bar a little more than 360 ° to carry out a complete sweep of the surface with a slight overlap.
- step-by-step advances is obviously chosen so that its amplitude is less than the working width of the grinding wheel.
- the centering brackets 23 are dismantled, which makes it possible to carry out a scanning of the internal surface of the nozzle by the grinding wheel up to the end of this nozzle flush with the internal surface of the tank.
- the main advantages of the device according to the invention are to allow automation of the machining operations in a tapping and the use of more bulky tools, to have a large power at the end of the shaft and to allow adaptation to various geometries of the stitching.
- the use of the device according to the invention is particularly simple and particularly safe.
- a tool can be placed on the tool bar allowing any operation to be carried out inside the nozzle at any point in the bore of this nozzle.
- the use of the device according to the invention is of course not limited to machining operations and it is possible to carry out non-destructive checks inside a nozzle by replacing the tool mounted on the door bar. -tool by a control means which can be moved into positions allowing the control of the entire internal surface of the bore.
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Drilling And Boring (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Turning (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Percussive Tools And Related Accessories (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Earth Drilling (AREA)
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81400600T ATE6222T1 (de) | 1980-04-15 | 1981-04-15 | Mittel zum unterstuetzen und verschieben eines werkzeuges an der innenseite eines loches. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8008430 | 1980-04-15 | ||
FR8008430A FR2480167A1 (fr) | 1980-04-15 | 1980-04-15 | Dispositif de support et de deplacement d'un outil a l'interieur d'un piquage |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0038270A2 EP0038270A2 (de) | 1981-10-21 |
EP0038270A3 EP0038270A3 (en) | 1981-11-04 |
EP0038270B1 true EP0038270B1 (de) | 1984-02-15 |
Family
ID=9240903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81400600A Expired EP0038270B1 (de) | 1980-04-15 | 1981-04-15 | Mittel zum Unterstützen und Verschieben eines Werkzeuges an der Innenseite eines Loches |
Country Status (10)
Country | Link |
---|---|
US (1) | US4419847A (de) |
EP (1) | EP0038270B1 (de) |
JP (1) | JPS56163493A (de) |
AT (1) | ATE6222T1 (de) |
BR (1) | BR8102177A (de) |
DE (1) | DE3162234D1 (de) |
ES (1) | ES8303791A1 (de) |
FI (1) | FI66556C (de) |
FR (1) | FR2480167A1 (de) |
YU (1) | YU93081A (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3310947A1 (de) * | 1983-03-23 | 1986-03-06 | Kraftwerk Union AG, 4330 Mülheim | Reparatureinrichtung fuer einen reaktordruckbehaelter |
FR2611561A1 (fr) * | 1987-02-26 | 1988-09-09 | Creation Mecanismes Aut Asserv | Dispositif de brossage d'alesages taraudes |
JPS6433499U (de) * | 1987-08-25 | 1989-03-01 | ||
FR2629250A1 (fr) * | 1988-03-25 | 1989-09-29 | Electricite De France | Machine de nettoyage de trous taraudes, notamment les trous taraudes pour les obturateurs de trous de poing et de trous d'oeil des generateurs de vapeur des centrales nucleaires |
JPH026699U (de) * | 1988-06-28 | 1990-01-17 | ||
JPH02164690A (ja) * | 1988-12-20 | 1990-06-25 | Mitsubishi Heavy Ind Ltd | リアクションフィン支持構造 |
FR2717721B1 (fr) * | 1994-03-23 | 1996-06-07 | Cogema | Dispositif de soudage d'un manchon dans un piquage d'une canalisation circulaire d'accès difficile. |
DE10014248A1 (de) * | 2000-03-22 | 2001-10-18 | Rehau Ag & Co | Medizinische Arbeitsmittel |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1114376A (en) * | 1914-07-13 | 1914-10-20 | Martin Milkop | Cylinder-grinding machine. |
US1365149A (en) * | 1919-06-13 | 1921-01-11 | Dale L Breed | Boiler-cleaning apparatus |
US1506504A (en) * | 1921-12-14 | 1924-08-26 | Joseph B Ruatti | Machine for finishing journal frames |
US1814078A (en) * | 1930-02-03 | 1931-07-14 | Charles B Cole | Machine for boring cylinders |
US2188720A (en) * | 1938-11-25 | 1940-01-30 | Robert J Mcquade | Abrading machine |
US2235924A (en) * | 1940-04-02 | 1941-03-25 | Hopper Machine Works Inc | Portable angular boring bar with grinder |
US2297074A (en) * | 1941-03-17 | 1942-09-29 | Allen C Rohrdanz | Manhole grinding machine |
US2372341A (en) * | 1942-09-01 | 1945-03-27 | Walter A Shanley | Grinding machine |
US2348505A (en) * | 1943-09-24 | 1944-05-09 | Voerge John Nicholas | Sandblasting |
US2521210A (en) * | 1946-11-18 | 1950-09-05 | Charles A Fulmer | Cylinder grinding machine |
FR1295948A (fr) * | 1961-04-18 | 1962-06-15 | Derefa Etablissement Pour Le D | Machine à combinaisons multiples, pour usinage de pièces de très grandes dimensions, ayant une forme générale de révolution |
US3218762A (en) * | 1964-08-31 | 1965-11-23 | Charles C Renfroe | Power driven ridge reamer |
US3571985A (en) * | 1965-10-20 | 1971-03-23 | Capvac Ind Inc | Cylinder treating method |
US3587194A (en) * | 1968-08-02 | 1971-06-28 | Champion Corp | Tap cutter |
JPS5338838B2 (de) * | 1974-09-17 | 1978-10-18 | ||
US4050836A (en) * | 1976-07-01 | 1977-09-27 | Rockwell International Corporation | Portable field machine for cutting, grinding and lapping valve seats |
US4161127A (en) * | 1977-04-08 | 1979-07-17 | Tiffin Patrick L | Remotely operable portable boring tool |
US4208229A (en) * | 1978-12-15 | 1980-06-17 | Giardini Dante S | System for repairing panes of glass |
-
1980
- 1980-04-15 FR FR8008430A patent/FR2480167A1/fr active Granted
-
1981
- 1981-04-06 US US06/251,456 patent/US4419847A/en not_active Expired - Lifetime
- 1981-04-10 YU YU00930/81A patent/YU93081A/xx unknown
- 1981-04-10 BR BR8102177A patent/BR8102177A/pt not_active IP Right Cessation
- 1981-04-13 FI FI811138A patent/FI66556C/fi not_active IP Right Cessation
- 1981-04-14 ES ES501324A patent/ES8303791A1/es not_active Expired
- 1981-04-14 JP JP5688881A patent/JPS56163493A/ja active Granted
- 1981-04-15 AT AT81400600T patent/ATE6222T1/de not_active IP Right Cessation
- 1981-04-15 EP EP81400600A patent/EP0038270B1/de not_active Expired
- 1981-04-15 DE DE8181400600T patent/DE3162234D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
YU93081A (en) | 1984-02-29 |
ES501324A0 (es) | 1983-02-01 |
FR2480167B1 (de) | 1983-12-02 |
JPS623398B2 (de) | 1987-01-24 |
EP0038270A3 (en) | 1981-11-04 |
FI66556C (fi) | 1984-11-12 |
FI811138L (fi) | 1981-10-16 |
ATE6222T1 (de) | 1984-03-15 |
FR2480167A1 (fr) | 1981-10-16 |
JPS56163493A (en) | 1981-12-16 |
DE3162234D1 (en) | 1984-03-22 |
ES8303791A1 (es) | 1983-02-01 |
US4419847A (en) | 1983-12-13 |
BR8102177A (pt) | 1981-12-01 |
EP0038270A2 (de) | 1981-10-21 |
FI66556B (fi) | 1984-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0038270B1 (de) | Mittel zum Unterstützen und Verschieben eines Werkzeuges an der Innenseite eines Loches | |
EP0317383B1 (de) | Vorrichtung zum Ausschneiden aus der Wand eines rohrförmigen Werkstückes durch Funkenerosion | |
EP0388296B1 (de) | Interventionsvorrichtung, insbesondere zur Prüfung, Inspektion und Wartung von Wärmeaustauschern | |
BE897468A (fr) | Procede de remplacement des broches de guidage d'un tube-guide et dispositif correspondant | |
EP0588713B1 (de) | Fräs-, Planfräs- und Polier-Maschine für automatischen Werkzeugwechsel und entsprechende Vorrichtung | |
FR2645060A1 (fr) | Procede et dispositifs d'extraction d'un bouchon d'obturation d'un tube de generateur de vapeur | |
EP0081180B1 (de) | Maschine zum Einstechen um ein Rohr herum, insbesondere während des Anbringens dieses Rohres auf einem Kernreaktorgefäss | |
EP0480781A1 (de) | Verfahren und Werkzeug zum Anbringen von Gewindeeinsatz | |
EP0403327B1 (de) | Verfahren und Vorrichtung für das Ersetzen eines Heizstabes eines Druckerzeugers eines Wasserkernreaktors | |
EP0194926A1 (de) | Mehrzweckroboter zum Behandeln der Innenwände von Behältern | |
CA1281781C (fr) | Machine de soudage a l'arc sous gaz inerte a electrode rotative et son utilisation | |
FR2499436A1 (fr) | Outil pour profiler des tubes | |
EP0673714A1 (de) | Verfahren und Vorrichtung zum Entgraten und Anfasen des Randbereiches von Bohrungen durch eine Halterungsplatte für ein Rohrbündel | |
FR2702875A1 (fr) | Procédé et dispositif de remplacement d'un adaptateur de traversée du couvercle de la cuve d'un réacteur nucléaire. | |
FR2685653A1 (fr) | Dispositif de refection du revetement interieur d'un trou de coulee notamment d'un convertisseur d'acierie. | |
EP0778103B1 (de) | Verfahren und Vorrichtung zum serienweise elektrochemischen Ätzen von Werstücken | |
BE1004430A3 (fr) | Dispositif pour le nettoyage d'un generateur de vapeur. | |
FR2673031A1 (fr) | Procede et dispositif de remplacement d'une broche de centrage d'un assemblage combustible d'un reacteur nucleaire a eau sous pression. | |
WO1990011159A1 (fr) | Porte-outil et broche tournante rapide | |
FR2554907A1 (fr) | Structure porteuse pour dispositif destine a effectuer un percement dans un mur | |
FR2684481A1 (fr) | Dispositif de support et de positionnement d'un moyen d'intervention sur le cloisonnement du cóoeur d'un reacteur nucleaire a eau sous pression. | |
EP0032102B1 (de) | Vorrichtung zum Entgraten und Abschrägen von Löchern in perforierten Platten | |
FR2570007A1 (fr) | Outillage destine a travailler au niveau du joint entre le corps et le chapeau d'un robinet et procede de refection d'un robinet utilisant un tel outillage | |
FR2538726A1 (fr) | Unite d'usinage polyvalente destinee a etre installee sur une piece a usiner pour y effectuer des usinages | |
EP0391778A1 (de) | Vorrichtung zum Zentrieren eines Interventionsgerät in einem Dampferzeugerrohr |
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 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT NL SE |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT NL SE |
|
17P | Request for examination filed |
Effective date: 19810922 |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI & PERANI S.P.A. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT LI NL SE |
|
REF | Corresponds to: |
Ref document number: 6222 Country of ref document: AT Date of ref document: 19840315 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3162234 Country of ref document: DE Date of ref document: 19840322 |
|
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 | ||
ITTA | It: last paid annual fee | ||
EAL | Se: european patent in force in sweden |
Ref document number: 81400600.3 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19960325 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19960328 Year of fee payment: 16 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19970415 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19971101 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19971101 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19990318 Year of fee payment: 19 Ref country code: GB Payment date: 19990318 Year of fee payment: 19 Ref country code: DE Payment date: 19990318 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19990323 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19990329 Year of fee payment: 19 |
|
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: 20000415 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000416 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 |
|
BERE | Be: lapsed |
Owner name: FRAMATOME Effective date: 20000430 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20000415 |
|
EUG | Se: european patent has lapsed |
Ref document number: 81400600.3 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
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: 20010201 |