EP1727936B1 - Spring doctor - Google Patents

Spring doctor Download PDF

Info

Publication number
EP1727936B1
EP1727936B1 EP05708143A EP05708143A EP1727936B1 EP 1727936 B1 EP1727936 B1 EP 1727936B1 EP 05708143 A EP05708143 A EP 05708143A EP 05708143 A EP05708143 A EP 05708143A EP 1727936 B1 EP1727936 B1 EP 1727936B1
Authority
EP
European Patent Office
Prior art keywords
blade
doctor
spring
doctor according
roll
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.)
Not-in-force
Application number
EP05708143A
Other languages
German (de)
French (fr)
Other versions
EP1727936A1 (en
Inventor
Kimmo Loippo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Runtech Systems Oy
Original Assignee
Runtech Systems Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Runtech Systems Oy filed Critical Runtech Systems Oy
Publication of EP1727936A1 publication Critical patent/EP1727936A1/en
Application granted granted Critical
Publication of EP1727936B1 publication Critical patent/EP1727936B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors
    • D21G3/005—Doctor knifes

Definitions

  • the present invention relates to a spring doctor, and more specifically to a doctor, which is used to scrape clean the various rolls of a machine used in the manufacture of paper.
  • doctor blade which is usually in the order of 75 - 85 mm-long and of the desired width, i.e. essentially the same width as the roll being doctored, rests with a specific force against the surface of the roll and cleans the surface of fibres and other materials adhering to it.
  • angle of contact of the blade relative to the surface of the roll is often in the order of 25 degrees when the blade is new, the angle of contact changes as the blade wears, so that the angle can be in the order of 35 degrees before the blade is replaced with a new one.
  • the length of present doctor blades is about 60 mm. Wear causes the surface pressure of the blade to change according to it.
  • wear margin/length of the blade As this will lead to problems arising from the deflection of the blade. Similar problems also arise if the pressure of the blade is increased, when the point of the blade will open and will no longer closely follow the surface of the roll. This results in a poorer doctoring result.
  • US patent 1,945,761 shows a doctor blade construction which was useful in the paper machines of that time.
  • the main aspect of the patent was to make a blade which is thin and resilient.
  • the blade was made of a thin steel plate.
  • the highly resilient doctor blades are completely inefficient as the speed of the rolls create forces that cannot be resisted by resilient blades.
  • the present invention is intended to create a new, improved doctor-blade construction, with the aid of which the drawbacks besetting the prior art can be avoided and savings will become possible in the manufacture of paper.
  • the roll the surface of which is cleaned by the doctor blade, in marked in the figures with the reference number 2.
  • the present case concerns a roll 2 with a relatively large diameter, the surface of which is only slightly curved in the figures.
  • the blade holder 1 has a more or less conventional construction. It is formed of a frame structure, which is permanently attached, for example, to the frame structure of the paper machine.
  • the frame 5 of the blade holder 1 has a lug 3 for a shaft 4.
  • the blade holder 1 is pivoted around the shaft 4, allowing the blade holder to be rotated to a limited extent around the shaft 4 according to the control.
  • the control is, in turn, provided by using hose-like components 6 and 7, filled with a pressure medium, which act on the blade holder to rotate it in different directions, as they are located on different sides of the pivot.
  • the hoses 6 and 7 are supported between the body 5 and a suitable surface of the blade holder.
  • the actual doctor blade 8 is attached and suitable supported on the side of the blade holder 1 facing the roll.
  • the attachment is made in a conventional manner, with the aid of a loading plate 9 and a counter-plate 10.
  • the blade construction 11 according to the prior art is shown by a broken line in Figure 1 . In practice, this means that the doctor blade 11 is shorter than the blade according to the invention.
  • the blade according to the prior art is also of a straight construction.
  • the blade construction 8 according to the invention is made to be curved, which also means that the construction is made sturdy, compared to the doctor blade according to the prior art. Thanks to the non-buckling and essentially non-deflecting construction achieved, the doctor blade can be made clearly longer than a blade according to the prior art, which in turn means that replacement will be needed much less frequently than when using a traditional doctor blade. The savings will be considerable.
  • the construction according to the invention also achieves another advantage, which is that, by curving the doctor blade 8 as shown, and bending it slightly upwards, as shown by the reference number 12, the angle of the blade relative to the surface 2 of the roll can be made to remain nearly constant over the entire operating life of the blade. This also brings savings, as separate measures are not required to adjust the angle. Similarly, the doctoring situation remains constant for the entire operating life of the doctor, because the angle, the contact surface, and the pressure will not change.
  • a protector plate suitable for the purpose can be attached behind the blade and will prevent dirt that may accumulate on the back of the blade from entering the blade holder.
  • Figure 1 shows an example of such a protector plate, marked with the reference number 13.
  • cleanliness is an extremely important factor in the inside of a hose-loaded holder. If solid dirt gets between the loading hose and the loading plate, it will cause a deviation in the loading profile of the blade. This will lead to uneven blade wear, a reduction in doctoring effect, possible entry of dirt into the paper, a deterioration in the moisture profile of the paper and, at the very least, a reduction in the production efficiency of the paper machine, due to web breaks.
  • the improvements in the doctor blade according to the invention bring considerable savings, because the use of this construction minimizes the operations that cause detriments to production.
  • the increases in the manufacture of the actual blade, and in the subsequent costs are only very small.
  • the blade according to the invention shown in the figures can be adapted in many ways.
  • the blade instead of the blade being curved over its entire length, it can also be made as a combination with a curved portion and also a straight portion.
  • a blade curved in two directions is also possible.
  • the radius of the curve can also be changed as desired over the length of the blade. It may also be sensible to make the blade with a varying thickness. Such an alternative, in which the blade thins towards its point may be particularly suitable.
  • Blades like that shown are usually manufactured from a composite material, which, in other words, is usually formed of a plastic-based matrix, to which reinforcement is added.
  • the reinforcement is normally of a fibrous material; aramid fibres, carbon fibres, kevlar, or similar.
  • the invention also permits the desired elasticity properties and stiffness to be achieved by altering the amount and orientation of the reinforcement. In other words, if desired, the properties can be altered by arranging more fibres in one part of the blade than in another, while similarly the fibres can be oriented in one direction or another in specific parts of the blade.
  • the shape and construction of the blade holder shown in the figures by way of example can differ even greatly from the model shown.
  • the invention is in no way restricted to the solution shown.
  • the pressure, exerted by the blade on the roll being doctored can by created in any way at all.
  • the means for creating the pressure need be in no way connected to the blade holder.
  • the pressure can be regulated by a microprocessor and be variable for the entire duration of the operation.

Landscapes

  • Paper (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cleaning In General (AREA)
  • Artificial Filaments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Springs (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Pens And Brushes (AREA)

Abstract

A spring doctor, particularly for use for cleaning the surface of rolls ( 2 ), used in the and including a blade ( 8 ) that is essentially the width of the roll ( 2 ) being cleaned, and which is attached to a blade holder ( 1 ). In the device, there are operating means (for example, 6, 7 ) for creating the desired pressure of the doctor blade against the roll. Longitudinally, the blade ( 8 ) is curved for at least part of its length.

Description

  • The present invention relates to a spring doctor, and more specifically to a doctor, which is used to scrape clean the various rolls of a machine used in the manufacture of paper.
  • The usual construction and positioning of doctors are such that the doctor blade, which is usually in the order of 75 - 85 mm-long and of the desired width, i.e. essentially the same width as the roll being doctored, rests with a specific force against the surface of the roll and cleans the surface of fibres and other materials adhering to it. Though the angle of contact of the blade relative to the surface of the roll is often in the order of 25 degrees when the blade is new, the angle of contact changes as the blade wears, so that the angle can be in the order of 35 degrees before the blade is replaced with a new one.
  • Before replacement, the length of present doctor blades is about 60 mm. Wear causes the surface pressure of the blade to change according to it. In practice, it has also been noted that when using existing types of blade construction there is very little possibility to increase the wear margin/length of the blade, as this will lead to problems arising from the deflection of the blade. Similar problems also arise if the pressure of the blade is increased, when the point of the blade will open and will no longer closely follow the surface of the roll. This results in a poorer doctoring result.
  • The deficiencies of blades according to the prior art also lead to various compromises being made in the manufacture of blades, the avoidance of which would improve the quality of the blades being manufactured.
  • Doctor blades are changed in paper machines at approximately weekly intervals. The change as such is not a difficult operation, but it is expensive, as it takes about one hour and costs can easily rise to about € 20 000. Thus, a lengthening of the interval between changes would easily have even considerable financial effects in the manufacture of paper.
  • US patent 1,945,761 shows a doctor blade construction which was useful in the paper machines of that time. The main aspect of the patent was to make a blade which is thin and resilient. The blade was made of a thin steel plate. In the paper machines of today the highly resilient doctor blades are completely inefficient as the speed of the rolls create forces that cannot be resisted by resilient blades.
  • The present invention is intended to create a new, improved doctor-blade construction, with the aid of which the drawbacks besetting the prior art can be avoided and savings will become possible in the manufacture of paper.
  • These and other benefits and advantages of the invention are achieved in the manner stated to be characteristic in the accompanying Claims.
  • In the following, the invention is examined in greater detail with reference to the accompanying schematic drawings, which show one embodiment according to the invention. Thus
    • Figure 1 shows one blade carrier, blade holder, and blade according to the invention, when the blade is at its full size, and
    • Figure 2 shows the same construction in a situation, in which the blade has worn more or less to a state in which it must be replaced.
  • The roll, the surface of which is cleaned by the doctor blade, in marked in the figures with the reference number 2. As can be seen, the present case concerns a roll 2 with a relatively large diameter, the surface of which is only slightly curved in the figures.
  • The blade holder 1 has a more or less conventional construction. It is formed of a frame structure, which is permanently attached, for example, to the frame structure of the paper machine. The frame 5 of the blade holder 1 has a lug 3 for a shaft 4. The blade holder 1 is pivoted around the shaft 4, allowing the blade holder to be rotated to a limited extent around the shaft 4 according to the control. The control is, in turn, provided by using hose- like components 6 and 7, filled with a pressure medium, which act on the blade holder to rotate it in different directions, as they are located on different sides of the pivot. The hoses 6 and 7 are supported between the body 5 and a suitable surface of the blade holder.
  • It should be noted that there are numerous different models of known blade holders on the market. The invention is thus not limited to the blade holder shown by way of example.
  • The actual doctor blade 8 is attached and suitable supported on the side of the blade holder 1 facing the roll. The attachment is made in a conventional manner, with the aid of a loading plate 9 and a counter-plate 10.
  • The blade construction 11 according to the prior art is shown by a broken line in Figure 1. In practice, this means that the doctor blade 11 is shorter than the blade according to the invention. The blade according to the prior art is also of a straight construction.
  • Instead of using a straight construction, the blade construction 8 according to the invention is made to be curved, which also means that the construction is made sturdy, compared to the doctor blade according to the prior art. Thanks to the non-buckling and essentially non-deflecting construction achieved, the doctor blade can be made clearly longer than a blade according to the prior art, which in turn means that replacement will be needed much less frequently than when using a traditional doctor blade. The savings will be considerable.
  • The construction according to the invention also achieves another advantage, which is that, by curving the doctor blade 8 as shown, and bending it slightly upwards, as shown by the reference number 12, the angle of the blade relative to the surface 2 of the roll can be made to remain nearly constant over the entire operating life of the blade. This also brings savings, as separate measures are not required to adjust the angle. Similarly, the doctoring situation remains constant for the entire operating life of the doctor, because the angle, the contact surface, and the pressure will not change.
  • A protector plate suitable for the purpose can be attached behind the blade and will prevent dirt that may accumulate on the back of the blade from entering the blade holder. Figure 1 shows an example of such a protector plate, marked with the reference number 13. In particular, cleanliness is an extremely important factor in the inside of a hose-loaded holder. If solid dirt gets between the loading hose and the loading plate, it will cause a deviation in the loading profile of the blade. This will lead to uneven blade wear, a reduction in doctoring effect, possible entry of dirt into the paper, a deterioration in the moisture profile of the paper and, at the very least, a reduction in the production efficiency of the paper machine, due to web breaks.
  • As stated above, the improvements in the doctor blade according to the invention bring considerable savings, because the use of this construction minimizes the operations that cause detriments to production. The increases in the manufacture of the actual blade, and in the subsequent costs are only very small.
  • The invention is described above with reference to only one well regarded embodiment, which must be considered as in no way restricting the invention.
  • Thus, the blade according to the invention shown in the figures can be adapted in many ways. For example, instead of the blade being curved over its entire length, it can also be made as a combination with a curved portion and also a straight portion. A blade curved in two directions is also possible. The radius of the curve can also be changed as desired over the length of the blade. It may also be sensible to make the blade with a varying thickness. Such an alternative, in which the blade thins towards its point may be particularly suitable.
  • Blades like that shown are usually manufactured from a composite material, which, in other words, is usually formed of a plastic-based matrix, to which reinforcement is added. The reinforcement is normally of a fibrous material; aramid fibres, carbon fibres, kevlar, or similar. The invention also permits the desired elasticity properties and stiffness to be achieved by altering the amount and orientation of the reinforcement. In other words, if desired, the properties can be altered by arranging more fibres in one part of the blade than in another, while similarly the fibres can be oriented in one direction or another in specific parts of the blade.
  • The shape and construction of the blade holder shown in the figures by way of example can differ even greatly from the model shown. The invention is in no way restricted to the solution shown. It is also self-evident that the pressure, exerted by the blade on the roll being doctored, can by created in any way at all. The means for creating the pressure need be in no way connected to the blade holder. For example, the pressure can be regulated by a microprocessor and be variable for the entire duration of the operation.

Claims (7)

  1. A spring doctor for use for cleaning the rolls (2) of a paper machine during operation and including a blade (8) that is essentially the width of the roll (2) being cleaned, and which is attached to a blade holder (1), and operating means (6, 7) for creating the desired pressure of the doctor blade against the roll, the blade (8) being manufactured from a composite material formed of a matrix and a fibrous reinforcement wherein the blade (8) is of essentially non-deflecting construction and wherein, in the operating situation, the blade is curved on at least part of its length and has, in the immediate vicinity of the attachment location of the blade holder, a bend (12), or curve.
  2. A spring doctor according to claim 1, characterized in that the blade holder (1) is pivoted around a shaft pin (4), to be able to be rotated to at least a limited extent.
  3. A spring doctor according to claim 1, characterized in that if desired, the doctor blade (8) has, at a distance from its point, particularly a plate-like dirt protector (13).
  4. A spring doctor according to any of the above claims, characterized in that the blade (8) is a combination of a curved portion and essentially straight portion.
  5. A spring doctor according to any of the above claims, characterized in that the thickness of the blade (8) varies over its length.
  6. A spring doctor according to claim 5, characterized in that the blade (8) thins towards its point.
  7. A spring doctor according to claim 1, characterized in that the number or orientation of the reinforcing fibres of the composite material of the blade (8) vary in different parts of the blade.
EP05708143A 2004-03-25 2005-01-28 Spring doctor Not-in-force EP1727936B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040453A FI116797B (en) 2004-03-25 2004-03-25 spring Scraper
PCT/FI2005/000062 WO2005093156A1 (en) 2004-03-25 2005-01-28 Spring doctor

Publications (2)

Publication Number Publication Date
EP1727936A1 EP1727936A1 (en) 2006-12-06
EP1727936B1 true EP1727936B1 (en) 2009-04-15

Family

ID=32039471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05708143A Not-in-force EP1727936B1 (en) 2004-03-25 2005-01-28 Spring doctor

Country Status (11)

Country Link
US (1) US20080163997A1 (en)
EP (1) EP1727936B1 (en)
JP (1) JP2007530801A (en)
KR (1) KR20070004771A (en)
CN (1) CN1934313A (en)
AT (1) ATE428822T1 (en)
BR (1) BRPI0509078A (en)
CA (1) CA2560458C (en)
DE (1) DE602005013934D1 (en)
FI (1) FI116797B (en)
WO (1) WO2005093156A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2310976B1 (en) * 2007-07-11 2009-11-19 Jose Joaquin Amonarriz Azcolain SCRAPER DEVICE FOR THE PAPER INDUSTRY.
FI119823B (en) * 2007-10-10 2009-03-31 Metso Paper Inc Creator equipment and method for a sheet forming machine for scraping a moving surface and blade holder
ES2368881T3 (en) * 2007-12-06 2011-11-23 Kadant Inc. KNIFE HOLDER
US8293074B2 (en) * 2009-03-02 2012-10-23 Kadant, Inc. Systems and methods for cleaning and conditioning a moving surface using cleaning apparatus with plate elements for mounting to doctor blade holders
BR112013014223B1 (en) * 2010-12-10 2020-12-08 Kadant Inc. scraper blade support system
BR112016010334B1 (en) * 2013-11-06 2021-11-16 Kadant Inc. SCRAPER BLADE RETAINER SYSTEM
CN104307777A (en) * 2014-11-18 2015-01-28 苏州禾盛新型材料股份有限公司 Air sac type scraper mechanism for PCM production painting

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945761A (en) 1930-05-03 1934-02-06 Vickery Inc Doctor for paper-making machinery
GB355007A (en) * 1930-08-06 1931-08-20 Holtzmann & Cie Ag E Improvements in scraper blades for paper drying drums and like devices
JPS5831300U (en) * 1981-08-26 1983-03-01 株式会社石津製作所 Doctor blade for rotating drum
US4549933A (en) * 1983-07-05 1985-10-29 Thermo Electron Corporation Doctor blade with non-homogeneous stiffness properties
US5117264A (en) * 1991-04-03 1992-05-26 Xerox Corporation Damage resistant cleaning blade
AU742958B2 (en) * 1997-07-21 2002-01-17 Scorpio Conveyor Products (Proprietary) Limited Scraper blade for primary belt scraper
FI101637B1 (en) * 1997-09-11 1998-07-31 Valmet Corp Treating doctor blade and method for its production
FI111343B (en) * 1998-06-09 2003-07-15 Metso Paper Inc Scraper blade and blade holder

Also Published As

Publication number Publication date
ATE428822T1 (en) 2009-05-15
CN1934313A (en) 2007-03-21
DE602005013934D1 (en) 2009-05-28
KR20070004771A (en) 2007-01-09
BRPI0509078A (en) 2007-08-21
WO2005093156A1 (en) 2005-10-06
FI116797B (en) 2006-02-28
FI20040453A (en) 2005-09-26
EP1727936A1 (en) 2006-12-06
FI20040453A0 (en) 2004-03-25
US20080163997A1 (en) 2008-07-10
JP2007530801A (en) 2007-11-01
CA2560458C (en) 2011-06-07
CA2560458A1 (en) 2005-10-06

Similar Documents

Publication Publication Date Title
EP1727936B1 (en) Spring doctor
US6619469B2 (en) Scraper blade, especially conveyor belt scraper
US4242958A (en) Ink duct for offset or relief printing machines
JP4801162B2 (en) Scraper blade and manufacturing method of scraper blade
CA2357543C (en) Doctor blade mounting assembly
EP2389481B1 (en) System for providing improved dewatering performance in a papermarking machine
JP4448126B2 (en) Composite material processing equipment
US6942734B2 (en) Treatment equipment
CN112423889A (en) Roller mill with scraper
EP2195486B1 (en) A doctor apparatus and a method for doctoring a moving surface in a web forming machine
KR20050014784A (en) Doctor blade dosing system
US6074526A (en) Method of creping tissue
EP0840825B1 (en) Rod holder with separate positionable contact elements for rod metering
JP2004527674A (en) Blade replacement device and method
US20020153114A1 (en) Removable doctor blade holder
US20040163587A1 (en) Treatment equipment
US2117032A (en) Doctor mechanism for rolls and cylinders
CN209175009U (en) A kind of bar cutting combined type V-type rail
US3859690A (en) Doctor blade assembly
SE441996B (en) APPARATUS OF THE KIND USING A SCHABER SHEET TO REMOVE MATERIAL FROM A GREAT BERARY AREA
US20160138223A1 (en) Doctor Device For Fiber Web Machine And Doctor Arrangement In Fiber Web Machine
WO1998027279A1 (en) Improved doctor blade assembly
US2418706A (en) Doctor mechanism for papermaking rolls and cylinders
US20020100355A1 (en) Knife arrangement for a granulator for granulating plastic ropes
FI126700B (en) The dam blade

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: 20060906

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070213

DAX Request for extension of the european patent (deleted)
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

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602005013934

Country of ref document: DE

Date of ref document: 20090528

Kind code of ref document: P

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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: 20090915

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: 20090415

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: 20090726

Ref country code: LT

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: 20090415

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: 20090715

Ref country code: SI

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: 20090415

Ref country code: IS

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: 20090815

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: 20090415

Ref country code: PL

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: 20090415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20090415

Ref country code: CZ

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: 20090415

Ref country code: RO

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: 20090415

Ref country code: EE

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: 20090415

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: 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: 20090415

Ref country code: SK

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: 20090415

26N No opposition filed

Effective date: 20100118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

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: 20090715

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: 20100131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100128

REG Reference to a national code

Ref country code: GB

Ref legal event code: S28

Free format text: APPLICATION FILED

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: 20100131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

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: 20090716

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: 20100128

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: 20100128

REG Reference to a national code

Ref country code: GB

Ref legal event code: S28

Free format text: RESTORATION ALLOWED

Effective date: 20110107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100128

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20090415

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: 20100128

Ref country code: HU

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: 20091016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

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: 20090415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MEISSNER, BOLTE & PARTNER GBR, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MEISSNER, BOLTE & PARTNER GBR, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20150126

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150126

Year of fee payment: 11

Ref country code: AT

Payment date: 20150123

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 428822

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160128

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160128

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: 20160128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160128

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MURGITROYD GERMANY PATENTANWALTSGESELLSCHAFT M, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MURGITROYD & COMPANY, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MURGITROYD GERMANY PATENTANWALTSGESELLSCHAFT M, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005013934

Country of ref document: DE

Representative=s name: MURGITROYD & COMPANY, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210125

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210127

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005013934

Country of ref document: DE

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: 20220802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220131