EP0955114B1 - Method and mould for cold compacting powders to be sintered - Google Patents
Method and mould for cold compacting powders to be sintered Download PDFInfo
- Publication number
- EP0955114B1 EP0955114B1 EP99108817A EP99108817A EP0955114B1 EP 0955114 B1 EP0955114 B1 EP 0955114B1 EP 99108817 A EP99108817 A EP 99108817A EP 99108817 A EP99108817 A EP 99108817A EP 0955114 B1 EP0955114 B1 EP 0955114B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- pressing means
- mould
- powder
- powders
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/027—Particular press methods or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Definitions
- the invention concerns a method for the cold agglomeration of powders to be sintered and a mould suitable for implementing said method.
- the method and the mould subject of the invention concern the agglomeration of abrasive powders on the edge of a disc-shaped metal core before the sintering process.
- the sintering process consists in the cold compression of mixtures of very fine metallic and non-metallic powders into moulds with predefined shape and in their sintering inside furnaces at high temperatures; the non-metallic powders may contain even diamond powder.
- the compression of the powders at high temperature is more properly called sintering and it is carried out at temperatures that usually correspond to 2/3 of the melting point of the most refractory material present in the powders, while the cold compression of the powders inside the moulds is called agglomeration.
- sintering is used for the construction of abrasive discs that are obtained by sintering a mixture of metallic and non-metallic powders - the latter may even contain diamond powder - on the peripheral edge of a disc-shaped metal core.
- the metal core in the processing phases the metal core must first of all be positioned in a mould and the powders to be sintered must be distributed circumferentially on the perimetral edge of the core and contained in an annular chamber properly obtained in the mould.
- the powders After being uniformly distributed, the powders are cold-agglomerated by positioning the mould under a press provided with an apposite, property shaped pressing element that compresses them and makes them adhere to the core.
- the mould complete with the pressing element, is then introduced in a furnace, brought to the sintering temperature and left in the furnace for a pre-established time.
- the mould is opened and the metal core is extracted together with the sintered annular edge stably fixed on to it.
- the abrasive disc has thus been obtained.
- a first drawback is represented by the fact that this method requires repeated handling of the cores and moulds, and therefore considerable labour and rather long execution times.
- a further drawback is constituted by the fact that the manufacturer must have a high number of moulds, since one mould contains only one core for the whole sintering cycle, from the distribution and agglomeration of the powders to the extraction of the sintered item.
- the aim of the present invention is to eliminate all the drawbacks described above.
- one of the aims of the invention is the implementation of a method for the cold agglomeration of powders to be sintered that makes it possible to reduce the manual operations necessary to move the pieces and the moulds.
- Another aim of the invention is that the method subject of the invention should make it possible to use a single mould for the agglomeration of the powders on more than one core.
- a further aim of the invention is the implementation of a method that for the agglomeration of the powders requires the use of a single mould, in fixed position and operating only at cold temperatures.
- the method subject pf the invention and the mould suitable for implementing it according to claim 2 ensure high productivity in comparison with the known methods and moulds.
- Another advantage is represented by the fact that the method subject of the invention and the relevant mould can obviously be employed to obtain the agglomeration of powders on the edges of any core, independently of its shape.
- the method subject of the invention can be implemented by means of a mould, which is also subject of the invention, is indicated as a whole by 1 and, as shown in the enclosed figures, comprises an upper plate 2 and a lower plate 2'; said plates are spaced and opposite each other, can be coupled to the reciprocally movable elements of a press not represented in the figure, and are joined through guide means, indicated as a whole by 3, suitable for keeping them parallel to each other during their reciprocal shifting.
- Said guide means 3 comprise at least one column 4 fixed to the lower plate 2' and slidingly coupled to a sleeve 5 fixed to the upper plate 2.
- the upper plate 2 is also provided with an upper body 6 that supports first core-pressing means constituted by an upper core-pressing means 7 and analogously the lower plate 2' is provided with a lower body 6' that supports second core-pressing means constituted by a lower core-pressing means 7'.
- the core A is positioned between the lower core-pressing means 7' and the upper core-pressing means 7 and abrasive powder P is agglomerated on the peripheral edge B of the core according to the procedure described below.
- An upper intermediate body 8 is interposed between the upper body 6 and the upper core-pressing means 7, housed in the upper body 6 and fixed to the upper core-pressing means 7.
- a piston 9 belonging to the upper intermediate body 8 is inserted into an upper chamber 10 obtained in the upper body 6, within which the piston can slide in the direction defined by the longitudinal axis X of the mould, the upper intermediate body 8 being guided by pins 11.
- Helical springs 12 cooperating with respective spring guides 13 make the movement of the piston 9 and of the relevant core-pressing means 7 elastic.
- a lower intermediate body 8' is interposed between the lower body 6' and the lower core-pressing means 7'; together with the lower core-pressing means 7' it defines a first lower chamber 7'' and with the lower body 6' it defines a second lower chamber 6''.
- the lower core-pressing means 7' slides axially with respect to the lower body 6' and is guided by one or more pins 14 passing through the lower intermediate body 8' and having one end fixed to the lower plate 2'.
- Helical springs 15 coupled to respective spring guides 16 make the movement of the core-pressing means 7' elastic with respect to the lower intermediate body 8' and the movement of both of them elastic with respect to the lower body 6'.
- the lower body 6' is fixed to the lower plate 2' by means of a bearing 17 with the vertical axis positioned so that the lower body 6', together with the lower intermediate body 8' and with the lower core-pressing means 7', can rotate on the vertical axis X of the mould.
- a fifth wheel 18 is provided outside the lower body 6' and engages with a pinion 19 coupled to an actuator 20, preferably constituted by a fluid-operated motor, for example an air motor.
- An annular body 21 is positioned between the lower core-pressing means 7' and the lower body 6' and is fixed to the lower intermediate body 8', thus defining - between the lower core-pressing means 7' and the lower body 6' - an annular chamber 22 that contains the powder P to be agglomerated.
- a powder-pressing ring 23 is fixed to the upper body 6, in correspondence with its outer perimetral edge, said ring 23 being provided with an annular protrusion 24 whose profile is conjugated to the concave part defined by the annular chamber 22 and is therefore suitable for fitting inside it.
- the powder agglomeration cycle begins when the mould is positioned open as indicated in Figure 1.
- the core A is positioned inside the mould, resting on the lower core-pressing means 7' and centered with respect to the longitudinal axis X of the mould by means of a central reference pin 25 that fits into a corresponding central hole F made in the core A.
- the motor 20 After the clamping of the core-pressing means the motor 20, through the kinematic chain constituted by the pinion 19 and the fifth wheel 18, sets the lower body 6' of the mould rotating on the axis X, together with the lower intermediate body 8', the lower core-pressing means 7' and the core A positioned on it.
- an appropriate powder-distributing device introduces the powder P to be sintered into the annular chamber 22, as shown in Figure 2.
- This powder is a mixture of metallic and non-metallic powders and the latter may even contain diamond powder.
- the lower core-pressing means 7' lowers and strikes against the lower intermediate body 8' due to the disappearance of the first lower chamber 7''.
- the lower intermediate body 8' therefore, constitutes the opposing element that reacts to the thrust of the press and contributes to the generation of the compressive action on the powder P in correspondence with the edge B of the core A.
- a pressurized fluid preferably air
- a pressurized fluid preferably air
- the upper plane of the press keeps moving upwards in the direction V, lifting first of all the powder-pressing ring 23, as shown in Figure 5, and then the upper core-pressing means 7, as shown in Figure 6, with respect to the core A, thus creating the clearance L that makes it possible to extract the core with the powder agglomerated on its edge B.
- the method subject of the invention and the mould suitable for implementing said method achieve all the fixed goals.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
- Figures from 1 to 6 show the mould suitable for implementing the method subject of the invention, represented in longitudinal section and in different processing phases.
Claims (12)
- Method for the cold agglomeration of mixtures of metallic and non-metallic powders (P) on to the outer perimetral edge (B) of a support core (A), in a mould (1) comprising powder-pressing means, which comprises the following operations:positioning said support core (A) inside a mould (1) between first core-pressing means (7) and second core-pressing means (7') opposite each other;locking said core (A) between said core-pressing means (7, 7');distributing said powder mixture (P) on to the outer peripheral edge (B) of said core (A);agglomerating said powders (P) together and on said peripheral edge (B) through compression with powder-pressing means (21, 22, 23, 24);shifting said core-pressing means (7, 7') and said powder-pressing means together with said core (A), included between them, with respect to the plane on which the core is arranged;moving said powder-pressing means away from said agglomerated powders (P);moving at least one of said core-pressing means (7, 7') away from said core (A);extracting said core (A) from said mould.
- Mould (1) suitable for implementing the method according to claim 1), comprising an upper plate (2) and a lower plate (2') spaced and opposite each other, coupled to the reciprocally movable elements of a press and cooperating with each other through guide means (3) suitable for keeping them parallel to each other during their reciprocal shifting, each one of said plates (2,2') being coupled to core-pressing means (7, 7') suitable for reciprocally locking a disc-shaped core (A) and powder-pressing means (21, 22, 23, 24) suitable for agglomerating a mixture of metallic and non-metallic powders (P) on the outer perimetral edge of said disc-shaped core (A) through compression, characterized in that said upper plate (2) is connected to an upper body (6) supporting an upper core-pressing means (7) and said lower plate (2') is connected to a lower body (6') supporting a lower core-pressing means (7').
- Mould (1) according to claim 2, characterized in that said upper core-pressing means (7) is slidingly coupled to said upper body (6) through the interposition of an upper intermediate body (8), to one side of which said upper core-pressing means (7) is fixed, while the opposite side is provided with a piston (9) fitting into a chamber (10) obtained in said upper body (6).
- Mould (1) according to claim 3, characterized in that said piston (9) is elastically sliding in said chamber (10), said upper intermediate body (8) being connected to said upper body (6) through the interposition of one or more helical springs (12) provided with respective spring guides (13).
- Mould (1) according to claim 2, characterized in that said lower core-pressing means (7') is slidingly coupled to said lower body (6') through the interposition of a lower intermediate body (8') provided with sliding pins (14) passing through said lower intermediate body (8') and fixed to said lower body (6').
- Mould (1) according to claim 5, characterized in that an helical spring (15) and a spring guide (16) cooperate between said lower core-pressing means (7'), said lower intermediate body (8') and said lower body (6'), in such a way as to make said lower core-pressing means (7') elastic with respect to said lower intermediate body (8') and both said lower core-pressing means (7') and said lower intermediate body (8') elastic with respect to said lower body (6').
- Mould (1) according to claim 6, characterized in that said powder-pressing means comprise a powder-pressing ring (23) coaxially fixed outside said upper body (6) and an annular chamber (22) defined in correspondence with said lower body (6') and opposite said powder-pressing ring (23).
- Mould (1) according to claim 7, characterized in that said annular chamber (22) is delimited by an annular body (21) included between a lower body (6') fixed to said lower plate (2') and a lower core-pressing means (7') supported by said lower body (6').
- Mould (1) according to claim 7, characterized in that said powder-pressing ring (23) is provided with an annular protrusion (24) whose profile is conjugated to the concave part of said annular chamber (22) in which it is fitted.
- Mould (1) according to claim 2, characterized in that said lower body (6') is coupled to said lower plate (2') through the interposition of an axial rolling bearing (17).
- Mould (1) according to claim 10, characterized in that said lower body (6') is externally provided with a fifth wheel (18) coaxial to the lower body (6') and engaging with a pinion (19) fixed to a motor (20).
- Mould (1) according to claim 11, characterized in that said motor (20) is a pneumatic motor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI980091 | 1998-05-06 | ||
IT98VI000091A ITVI980091A1 (en) | 1998-05-06 | 1998-05-06 | METHOD FOR COLD AGGLOMERATING POWDERS TO BE SINTERED AND MOLD SUITABLE FOR REALIZING THIS METHOD |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0955114A2 EP0955114A2 (en) | 1999-11-10 |
EP0955114A3 EP0955114A3 (en) | 2001-08-01 |
EP0955114B1 true EP0955114B1 (en) | 2004-07-21 |
Family
ID=11426704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99108817A Expired - Lifetime EP0955114B1 (en) | 1998-05-06 | 1999-05-04 | Method and mould for cold compacting powders to be sintered |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0955114B1 (en) |
AT (1) | ATE271435T1 (en) |
DE (1) | DE69918742D1 (en) |
IT (1) | ITVI980091A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108405853A (en) * | 2018-04-27 | 2018-08-17 | 遵义江星机械模具有限公司 | Mold for manufacturing water pump hub |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2331909A (en) * | 1940-12-04 | 1943-10-19 | Mallory & Co Inc P R | Gear and the like |
US2686439A (en) * | 1948-04-27 | 1954-08-17 | Thoger G Jungersen | Method of making cutting tools |
JPS63300871A (en) * | 1987-05-30 | 1988-12-08 | Sanwa Daiyamondo Kogyo Kk | Manufacture of superabrasive grain cutter and device thereof |
-
1998
- 1998-05-06 IT IT98VI000091A patent/ITVI980091A1/en unknown
-
1999
- 1999-05-04 DE DE69918742T patent/DE69918742D1/en not_active Expired - Lifetime
- 1999-05-04 EP EP99108817A patent/EP0955114B1/en not_active Expired - Lifetime
- 1999-05-04 AT AT99108817T patent/ATE271435T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE271435T1 (en) | 2004-08-15 |
EP0955114A3 (en) | 2001-08-01 |
EP0955114A2 (en) | 1999-11-10 |
ITVI980091A1 (en) | 1999-11-06 |
DE69918742D1 (en) | 2004-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4472350A (en) | Method of making a compound valve seat | |
US3555597A (en) | Apparatus for hot pressing refractory materials | |
US3413392A (en) | Hot pressing process | |
US3719479A (en) | Method of fabricating ring shapes by hot pressing | |
WO2001051774A9 (en) | Method of fabricating camshafts and other products | |
CA1145594A (en) | Forging method and apparatus | |
NL8100518A (en) | METHOD FOR MANUFACTURING A METALLIC SINTER BODY AND FOR CARRYING OUT THE APPARATUS APPARATUS | |
EP0955114B1 (en) | Method and mould for cold compacting powders to be sintered | |
US3752003A (en) | Composite heavy-duty machine element and method of making the same | |
US4792318A (en) | Device for warm press forming a plate-like member into a shadow mask for a color cathode ray tube | |
US2319373A (en) | Method of making metal articles | |
US3332774A (en) | Method of making a sintered impregnated metal brake drum | |
CN107584020B (en) | Compressible separator and separation method for forming | |
CN113800921B (en) | Ceramic dielectric window processing method for plasma etcher | |
US3805360A (en) | Method and apparatus for sizing brake drum rings | |
RU2071913C1 (en) | Method for manufacture of tools | |
SU1623833A1 (en) | Mold for pressing diamond tools | |
SU946801A1 (en) | Apparatus for pressing powder articles | |
EP0438865B1 (en) | Plunger mechanism | |
JPH01234789A (en) | Hot press device | |
SU1616783A2 (en) | Injection-mould for compaction of hollow articles from powder | |
KR200417602Y1 (en) | A molder for manufacturing the cross roller guide | |
CA1146780A (en) | Forging method and apparatus | |
CN105880609A (en) | Forming technological method and forming mould for engine jet pipe | |
JPH046811A (en) | Device for manufacturing rare earth element magnet |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7B 22F 3/03 A, 7B 22F 7/08 B, 7B 30B 11/02 B |
|
17P | Request for examination filed |
Effective date: 20011204 |
|
AKX | Designation fees paid |
Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20030604 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BONATO, GIANNINO Inventor name: SINICO, CLAUDIO |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;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: 20040721 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040721 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 69918742 Country of ref document: DE Date of ref document: 20040826 Kind code of ref document: P |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041021 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041021 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041021 |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041022 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041101 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
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: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050504 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050504 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050504 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050504 |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050531 |
|
26N | No opposition filed |
Effective date: 20050422 |
|
EN | Fr: translation not filed | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20050504 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041221 |