EP0665773B1 - Screen - Google Patents
Screen Download PDFInfo
- Publication number
- EP0665773B1 EP0665773B1 EP93922970A EP93922970A EP0665773B1 EP 0665773 B1 EP0665773 B1 EP 0665773B1 EP 93922970 A EP93922970 A EP 93922970A EP 93922970 A EP93922970 A EP 93922970A EP 0665773 B1 EP0665773 B1 EP 0665773B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screening
- screen
- members
- cross
- essentially
- 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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
- B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
Definitions
- the present invention relates to a screen used in the fine screening of solid material, such as rock material and coal, provided with a plurality of successive, rotatable screening members suitably spaced in the proceeding direction of the material.
- the roller screen of the FI patent 56,131 is adjustable, i.e. the distance between the rollers is increased in the proceeding direction of the material in order to adjust the overflow, so that essentially all pellets forming the overflow are larger than those separated therefrom and returned to pelleting.
- the rotatable rollers of the FI patent 56,131 set the material to be screened only and essentially into horizontal motion, in which case the material either rolls or slides on top of the rollers.
- vertical motion which is advantageous for screening and normally obtained by means of a vibrator, is not created in the process.
- US 4,266,676 discloses a screening device comprising screening members located parallel to each other with an elliptical cross-section.
- This known screening device has a very good function as this screen material undergoes a vertical as well as a horizontal movement to improve the efficiency of this screening.
- the forming and working of the screening members during manufacture are very laborious and expensive.
- the object of the present invention is to eliminate some of the drawbacks of the prior art and to achieve an improved screen which is more secure in operation, and where an essentially vertical motional component also is obtained for the material to be screened by means of suitably shaping the screening members.
- the screen is provided with a plurality of suitably spaced rotatable screening members arranged transversally with respect to the proceeding direction of the material.
- the cross-section of a screening member is a circle, which is removed of essentially equal-sized segments located symmetrically with respect to the rotating axis of the screening member, the number of these segments being advantageously two or three.
- at least 50% of the cross-sectional circumference is curved and is composed of circular curves.
- the screening members are essentially symmetrical in relation to their rotating axis.
- the screening members are coupled to each other, so that the distance between two successive screening members remains essentially the same at the different stages of screening.
- two different motional components are achieved for the material which is fed and proceeded on the screen, i.e. both an essentially horizontal and an essentially vertical motional component.
- the material located on the screen can be made to change its direction at different stages.
- an elongate particle that could not be screened with an essentially horizontal motion only can now be screened owing to the alternating motion created by the screening members, which essentially increases screening efficiency with the screen of the present invention.
- the screening members are arranged in an advantageous fashion with respect to each other, so that two successive screening members are turned at an angle of essentially 90° in relation to each other.
- every second member is essentially in horizontal position, and every second member essentially in vertical position.
- the particles are set to an essentially rising or lowering motion due to the effect of the screening members, so that both the horizontal and vertical motional components affect the material to be screened, and the single particles contained therein.
- the screening members of the screen of the invention are further installed so, that the screen aperture in between two successive screening members is equal-sized in all intervals throughout the screen. Moreover, two successive screening members are synchronized by means of a gearing member, so that the screen aperture remains essentially the same throughout the screening process, owing to the advantageous cross-sectional symmetry of the screening members.
- the screen of the present invention is meant for the fine screening of the material to be screened, in which case the screen aperture is advantageously of the order 4 - 25 mm.
- two or more screens with different screen apertures can be connected, so that they form a screen track of several screens.
- These screens are advantageously operated either with one and the same or with several different actuator devices.
- the material conveyed on the conveyor belt 1 is fed onto the screen 2.
- the screen 2 is provided with screening members 3 arranged transversally to the proceeding direction of the material, spaced at a distance determined by the screen aperture 11.
- the screening members 3 are according to US 4,266,676 essentially elliptical in cross-section, and the screening members 3 are mutually installed so that every second member 3 is essentially in vertical position, and every second member 3 is essentially in horizontal position, i.e. in alternate members, the long axis of the ellipse is in turns in vertical or in horizontal position.
- the screening members 3 are interconnected, so that at the end of the screening member 3 (figure 2) there is installed a sprocket 5 by intermediation of a gearing 4.
- the sprockets 5 are further connected to each other by intermediation of roller chains 6.
- the rotation of the roller chains 6 is achieved by means of the actuator arrangement 7.
- a hopper 8 underneath the screen 2 through which hopper 8 the fine material that has penetrated the screen proceeds to an underflow conveyor belt 9 located below the hopper 8.
- a conveyor belt 10 at the end of the screen with respect to the proceeding direction of the material is provided.
- the screening members 21 are spaced according to an interval determined by the screen aperture 27.
- a sprocket 23 by intermediation of a gearing 22.
- the sprockets 23 are interconnected by a roller chain 24.
- the roller chain 24 is further arranged to pass around a special return roller 25.
- the actuator arrangement 26 of the screen 20 is connected to the return roller 25 according to the drawing.
- the screen of figures 3 and 4 essentially corresponds to the device illustrated in figures 1 and 2.
- the screening member 31 is in cross-section composed of two opposite circular curves and two connecting, parallel linear parts.
- two adjacent screening members 31 are advantageously installed, with respect to each other, so that the parallel linear parts of the cross-sectional surface of the screening member 31 are alternatingly either essentially in vertical position or essentially in horizontal position.
- the cross-sectional shape of the screening member 32 of figure 6 as well as the screening member 31 of figure 5 is achieved so, that from a circular cross-sectional surface, there are removed, symmetrically with respect to the rotating axis of the screening member 32, three segments (Fig.3), in which case the cross-sectional surface is formed of both curved and linear parts, and the proportion of the curved parts is at least 50% of the whole cross-sectional circumference.
- the location of the actuator arrangement of the screen can vary in the different applications.
- the actuator arrangement can be operated either through specific gearing, or the actuator arrangement can be connected to some known sprocket, or each screening member may obtain its rotatory force from a power transmission axis running along the side of the screening members, which axis is connected to the screening member by means of sprocket gearing.
- the cross-section of the screening members may vary within the scope of the appended patent claims.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Color Image Communication Systems (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Furan Compounds (AREA)
- Photoreceptors In Electrophotography (AREA)
- Glass Compositions (AREA)
- Lubricants (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Valve Device For Special Equipments (AREA)
- Paper (AREA)
Abstract
Description
- The present invention relates to a screen used in the fine screening of solid material, such as rock material and coal, provided with a plurality of successive, rotatable screening members suitably spaced in the proceeding direction of the material.
- Many material treatment processes require that for instance the coarsest and finest particles are removed of the material under treatment, in which case the said material is essentially a fraction between two limit measures. Thus an essentially desired size grade is obtained for the material. Consequently, several different screens have been developed for sieving material into an advantageus particle size for the next treatment stage. Usually the screens are arranged in an inclined position, so that the material to be screened passes over the screen by force of gravitation, or the screens are provided with vibrators, which set the material into motion on the screen. There are also developed roller screens, as in the FI patent 56,131, comprising several rotatable transversal rollers. By means of these rollers, material is made to pass over the screen. Moreover, the roller screen of the FI patent 56,131 is adjustable, i.e. the distance between the rollers is increased in the proceeding direction of the material in order to adjust the overflow, so that essentially all pellets forming the overflow are larger than those separated therefrom and returned to pelleting. The rotatable rollers of the FI patent 56,131 set the material to be screened only and essentially into horizontal motion, in which case the material either rolls or slides on top of the rollers. Thus vertical motion, which is advantageous for screening and normally obtained by means of a vibrator, is not created in the process.
- US 4,266,676 discloses a screening device comprising screening members located parallel to each other with an elliptical cross-section. This known screening device has a very good function as this screen material undergoes a vertical as well as a horizontal movement to improve the efficiency of this screening. However, the forming and working of the screening members during manufacture are very laborious and expensive.
- The object of the present invention is to eliminate some of the drawbacks of the prior art and to achieve an improved screen which is more secure in operation, and where an essentially vertical motional component also is obtained for the material to be screened by means of suitably shaping the screening members. The essential novel features of the invention are apparent from the appended patent claims.
- According to the invention, the screen is provided with a plurality of suitably spaced rotatable screening members arranged transversally with respect to the proceeding direction of the material. The cross-section of a screening member is a circle, which is removed of essentially equal-sized segments located symmetrically with respect to the rotating axis of the screening member, the number of these segments being advantageously two or three. Thus at least 50% of the cross-sectional circumference is curved and is composed of circular curves. In addition, the screening members are essentially symmetrical in relation to their rotating axis. Moreover, the screening members are coupled to each other, so that the distance between two successive screening members remains essentially the same at the different stages of screening.
- By means of the cross-sectional surface of the screening members of the invention, two different motional components are achieved for the material which is fed and proceeded on the screen, i.e. both an essentially horizontal and an essentially vertical motional component. By means of these two motional components, the material located on the screen can be made to change its direction at different stages. Thus for instance an elongate particle that could not be screened with an essentially horizontal motion only, can now be screened owing to the alternating motion created by the screening members, which essentially increases screening efficiency with the screen of the present invention.
- The screening members are arranged in an advantageous fashion with respect to each other, so that two successive screening members are turned at an angle of essentially 90° in relation to each other. Thus, for instance when the circular screening members comprise two segments, every second member is essentially in horizontal position, and every second member essentially in vertical position. While the material proceeds on the surface of the screening members of the screen, the particles are set to an essentially rising or lowering motion due to the effect of the screening members, so that both the horizontal and vertical motional components affect the material to be screened, and the single particles contained therein.
- The screening members of the screen of the invention are further installed so, that the screen aperture in between two successive screening members is equal-sized in all intervals throughout the screen. Moreover, two successive screening members are synchronized by means of a gearing member, so that the screen aperture remains essentially the same throughout the screening process, owing to the advantageous cross-sectional symmetry of the screening members.
- The screen of the present invention is meant for the fine screening of the material to be screened, in which case the screen aperture is advantageously of the order 4 - 25 mm.
- When the material is desired to be screened into several fractions, two or more screens with different screen apertures can be connected, so that they form a screen track of several screens. These screens are advantageously operated either with one and the same or with several different actuator devices.
- The invention is explained in more detail below, with reference to the appended figures 5 and 6, whereas figures 1 to 4 show a screen according to US 4,266,676 for illustration purposes.
- figure 1
- illustrates a screening device according to US 4,266, 676, seen in a partial side-view cross-section,
- figure 2
- illustrates the coupling of the screening members of the device of figure 1, seen from the top,
- figure 3
- illustrates another type of coupling of the screen members known from US 4,266,676, seen in a partial side-view cross-section,
- figure 4
- illustrates the coupling of the screening members of the device of figure 3, seen from the top,
- figure 5
- illustrates a first advantageous cross-section of the screening member of the invention, and
- figure 6
- illustrates a second advantageous cross-section of the screening member of the invention.
- According to figures 1 and 2, the material conveyed on the
conveyor belt 1 is fed onto thescreen 2. Thescreen 2 is provided withscreening members 3 arranged transversally to the proceeding direction of the material, spaced at a distance determined by thescreen aperture 11. Thescreening members 3 are according to US 4,266,676 essentially elliptical in cross-section, and thescreening members 3 are mutually installed so that everysecond member 3 is essentially in vertical position, and everysecond member 3 is essentially in horizontal position, i.e. in alternate members, the long axis of the ellipse is in turns in vertical or in horizontal position. Thescreening members 3 are interconnected, so that at the end of the screening member 3 (figure 2) there is installed asprocket 5 by intermediation of agearing 4. Thesprockets 5 are further connected to each other by intermediation ofroller chains 6. The rotation of theroller chains 6 is achieved by means of theactuator arrangement 7. For the underflow of thescreen 2, there is provided a hopper 8 underneath thescreen 2, through which hopper 8 the fine material that has penetrated the screen proceeds to an underflow conveyor belt 9 located below the hopper 8. For the screen overflow, there is provided aconveyor belt 10 at the end of the screen with respect to the proceeding direction of the material. - When the
screen 2 is in operation, material to be screened is fed onto thescreen 2 from theconveyor belt 1. Thescreening members 3 are rotated by means of theactuator arrangement 7, so that thescreen aperture 11 in between twoscreening members 3 remains essentially equal during the whole screening process. The essentially vertical andhorizontal screening members 3 shift the material to be screened forward on the screen, and essentially give the material both vertical and horizontal motional components. Thus the efficiency of the screening can be essentially increased. The fine material located on thescreen 2 falls in between thescreening members 3 to the hopper 8 and further to the conveyor belt 9 of the screen underflow. That part of the material that does not fall in the underflow proceeds into the overflow of thescreen 2 and further to theconveyor belt 10. - In figures 3 and 4, the
screening members 21 are spaced according to an interval determined by thescreen aperture 27. In order to operate thescreening members 21, at the end of eachmember 21 there is installed asprocket 23 by intermediation of agearing 22. Thesprockets 23 are interconnected by aroller chain 24. Theroller chain 24 is further arranged to pass around aspecial return roller 25. Theactuator arrangement 26 of thescreen 20 is connected to thereturn roller 25 according to the drawing. As for the material treatment, the screen of figures 3 and 4 essentially corresponds to the device illustrated in figures 1 and 2. - In figure 5, the
screening member 31 is in cross-section composed of two opposite circular curves and two connecting, parallel linear parts. In general twoadjacent screening members 31 are advantageously installed, with respect to each other, so that the parallel linear parts of the cross-sectional surface of the screeningmember 31 are alternatingly either essentially in vertical position or essentially in horizontal position. - The cross-sectional shape of the screening
member 32 of figure 6 as well as the screeningmember 31 of figure 5 is achieved so, that from a circular cross-sectional surface, there are removed, symmetrically with respect to the rotating axis of the screeningmember 32, three segments (Fig.3), in which case the cross-sectional surface is formed of both curved and linear parts, and the proportion of the curved parts is at least 50% of the whole cross-sectional circumference. - Although several preferred embodiments of the invention are described in the above specification, it is obvious that the invention can be modified even to a large extent within the scope of the appended patent claims. Similarly, for instance the location of the actuator arrangement of the screen can vary in the different applications. The actuator arrangement can be operated either through specific gearing, or the actuator arrangement can be connected to some known sprocket, or each screening member may obtain its rotatory force from a power transmission axis running along the side of the screening members, which axis is connected to the screening member by means of sprocket gearing. Moreover, the cross-section of the screening members may vary within the scope of the appended patent claims.
Claims (7)
- A screen, provided with a plurality of rotatable screening members, which are spaced transversally with respect to the proceeding direction of the material to be screened,
which screening members (31,32) are in cross-section essentially deviant from circular form, in order to achieve essentially vertical and horizontal motional components for the material to be treated on the screen (2,20) and which screening members (31,32) are mutually installed 50 that the screen aperture (11,27) formed by two adjacent screening members (31,32) can be kept essentially in the same size throughout the screening process and which screen is designed for the fine screening of material,
wherein the cross-section of the screening members (31,32) is composed of at least two circular curves and at least two linear parts connecting these circular curves;
characterized in
that the cross-sectional shape of the screening members (31,32) is achieved by removing segments from a screen member blank with a circular cross-sectional surface. - The screen of claim 1, characterized in that at least 50% of the cross-sectional circumference of the screening member (3, 21, 31, 32) has a circular form.
- The screen of claim 1 or 2, characterized in that the screening member (3, 21, 31, 32) is essentially symmetrical in cross-section with respect to its rotating axis.
- The screen of claim 1, 2 or 3, characterized in that the cross-section of the screening members (31, 32) is composed of at least two corresponding circular curves and at least two parallel parts connecting these circular curves.
- The screen of any of the preceding claims, characterized in that two adjacent screening members (3, 21, 31, 32) are installed as turned at an angle of essentially 90° with respect to each other.
- The screen of any of the preceding claims, characterized in that in order to rotate the screening member (3, 21, 31, 32), the screening members (3, 21, 31, 32) are interconnected by means of at least one chain (6, 24).
- The screen of any of the preceding claims, characterized in that in order to rotate the screening member (3, 21, 31, 32), two adjacent screening members (3, 21, 31, 32) are interconnected by a chain (6).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI924854 | 1992-10-26 | ||
FI924854A FI93803C (en) | 1992-10-26 | 1992-10-26 | Term |
PCT/FI1993/000435 WO1994009917A1 (en) | 1992-10-26 | 1993-10-25 | Screen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0665773A1 EP0665773A1 (en) | 1995-08-09 |
EP0665773B1 true EP0665773B1 (en) | 1999-09-15 |
Family
ID=8536110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93922970A Expired - Lifetime EP0665773B1 (en) | 1992-10-26 | 1993-10-25 | Screen |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0665773B1 (en) |
CN (1) | CN1086746A (en) |
AT (1) | ATE184514T1 (en) |
AU (1) | AU683228B2 (en) |
DE (1) | DE69326476T2 (en) |
FI (1) | FI93803C (en) |
WO (1) | WO1994009917A1 (en) |
ZA (1) | ZA928646B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104307729A (en) * | 2014-09-28 | 2015-01-28 | 扬州高扬机电制造有限公司 | Special-shaped staggered push wheel sieve mechanism |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2292874B (en) * | 1994-09-12 | 1998-07-01 | Pearson Richard Ltd | A device for separating materials |
NL1021898C2 (en) * | 2002-11-11 | 2004-05-12 | Cornelis Pieter Van Eck | Roller conveyor device for cleaning harvested crops, comprises rolls with round and elliptical cross sections |
ITMI20041008A1 (en) * | 2004-05-20 | 2004-08-20 | Globus Srl | MACHINE FOR CLASSIFYING SCREENING AND SEPARATION OF HOMOGENEOUS MASSES OF MATERIALS |
CH703101A2 (en) * | 2010-05-03 | 2011-11-15 | Aficor S A | cleaning table split wood sections. |
RU2572490C1 (en) * | 2014-07-11 | 2016-01-10 | Александр Викторович Агафонов | Potato digger |
CN104648893B (en) * | 2015-02-10 | 2017-01-04 | 浙江味之源食品有限公司 | A kind of fruit conveyor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE600232C (en) * | 1932-07-01 | 1934-07-20 | Buckau R Wolf Akt Ges Maschf | Disc roller grate for sieving off bulk goods |
US2743813A (en) * | 1951-04-25 | 1956-05-01 | Lester E Erickson | Materials separating means |
US2973093A (en) * | 1956-05-17 | 1961-02-28 | Lewis C Erickson | Roller device with removable rolls |
US4266676A (en) * | 1979-05-10 | 1981-05-12 | Spm Group, Inc. | Apparatus for separation of material of heterogeneous character |
-
1992
- 1992-10-26 FI FI924854A patent/FI93803C/en not_active IP Right Cessation
- 1992-11-10 ZA ZA928646A patent/ZA928646B/en unknown
-
1993
- 1993-10-25 DE DE69326476T patent/DE69326476T2/en not_active Expired - Lifetime
- 1993-10-25 EP EP93922970A patent/EP0665773B1/en not_active Expired - Lifetime
- 1993-10-25 AU AU51788/93A patent/AU683228B2/en not_active Ceased
- 1993-10-25 WO PCT/FI1993/000435 patent/WO1994009917A1/en active IP Right Grant
- 1993-10-25 AT AT93922970T patent/ATE184514T1/en not_active IP Right Cessation
- 1993-10-26 CN CN93119493A patent/CN1086746A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104307729A (en) * | 2014-09-28 | 2015-01-28 | 扬州高扬机电制造有限公司 | Special-shaped staggered push wheel sieve mechanism |
Also Published As
Publication number | Publication date |
---|---|
WO1994009917A1 (en) | 1994-05-11 |
FI93803C (en) | 1995-06-12 |
AU683228B2 (en) | 1997-11-06 |
AU5178893A (en) | 1994-05-24 |
FI924854A (en) | 1994-04-27 |
EP0665773A1 (en) | 1995-08-09 |
ZA928646B (en) | 1993-05-10 |
DE69326476T2 (en) | 2000-02-03 |
FI93803B (en) | 1995-02-28 |
DE69326476D1 (en) | 1999-10-21 |
FI924854A0 (en) | 1992-10-26 |
CN1086746A (en) | 1994-05-18 |
ATE184514T1 (en) | 1999-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5361909A (en) | Waste aggregate mass density separator | |
US4826017A (en) | Vibrating screen | |
US4640364A (en) | Ballast cleaning machine with preliminary sifting conveyor | |
US3799336A (en) | Method and apparatus for treating discrete articles | |
EP0665773B1 (en) | Screen | |
US4102502A (en) | Concentration of plate-shaped minerals | |
US4660726A (en) | Bar screen | |
CA1194840A (en) | Classifying apparatus and method | |
RU2363552C2 (en) | Crushing-and-sorting complex "дска-4м" | |
US3438491A (en) | Conveying and classifying apparatus | |
RU2363551C2 (en) | Method for coal classification | |
US1389231A (en) | Mechanism for screening or sifting granulated substances | |
SU1087202A1 (en) | Hydraulic screen | |
US5611435A (en) | Apparatus for sorting constituents of a mixture | |
RU2019310C1 (en) | Disc-type grading machine | |
RU202148U1 (en) | ROLLER SCREEN | |
SU1279682A1 (en) | Screen | |
SU1072925A1 (en) | Screen | |
RU2683731C1 (en) | Loose material screening device | |
SU1641468A1 (en) | Vibratory feeder screen | |
US1719513A (en) | Coal screen | |
SU1088815A1 (en) | Screen for wet loose materials | |
SU360975A1 (en) | DEVICE FOR CLASSIFICATION OF GRAINED MATERIALS | |
SU973188A1 (en) | Apparatus for separating material by particle size | |
SU1405895A1 (en) | Arrangement for dividing material by size |
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: 19950518 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 19970130 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
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): AT BE CH DE DK ES 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: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19990915 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: 19990915 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: 19990915 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 PRE;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.SCRIBED TIME-LIMIT Effective date: 19990915 Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990915 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: 19990915 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19990915 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: 19990915 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: 19990915 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: 19990915 |
|
REF | Corresponds to: |
Ref document number: 184514 Country of ref document: AT Date of ref document: 19991015 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69326476 Country of ref document: DE Date of ref document: 19991021 |
|
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: 19991025 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19991215 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991215 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: 19991215 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
EN | Fr: translation not filed | ||
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: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 |
|
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 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19991215 |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20101022 Year of fee payment: 18 |
|
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: 20120501 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69326476 Country of ref document: DE Effective date: 20120501 |