EP1006236A2 - Beheizbare Kalanderwalze - Google Patents
Beheizbare Kalanderwalze Download PDFInfo
- Publication number
- EP1006236A2 EP1006236A2 EP99122637A EP99122637A EP1006236A2 EP 1006236 A2 EP1006236 A2 EP 1006236A2 EP 99122637 A EP99122637 A EP 99122637A EP 99122637 A EP99122637 A EP 99122637A EP 1006236 A2 EP1006236 A2 EP 1006236A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- displacer
- calender roll
- roll according
- roller
- calender
- 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.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0253—Heating or cooling the rolls; Regulating the temperature
- D21G1/0266—Heating or cooling the rolls; Regulating the temperature using a heat-transfer fluid
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
Definitions
- the invention relates to a calender roll which can be heated by means of a heating medium, especially for smoothing or satinizing, with a hollow cylindrical, a displacer having roller body and flanged to this on both sides, flange pin bearing it.
- Such calender rolls are widely used, for example, for smoothing or satinizing Paper used in calenders.
- An effective, even heating of the Surface of the roller body can be through a variety of peripheral holes reach that are penetrated by the heating medium. But you also have the inner jacket heated of the roller body and by fitting a displacer the gap in front of the inner jacket is narrowed so that a good one Flow rates ensuring heat transfer can be achieved. But even when using peripheral holes is often for reasons of Weight saving of the roller body drilled centrally, since the loss of the central, neutral phase reduces weight, but resilience only slightly diminishes. Here, a filling of the cavity of the Roll body with the heating medium or locks it against the heating medium from.
- Such installations and in particular displacement bodies are usually used Made from sheet steel within tight tolerances, fitted into the roller body and connected to it. This means that when the Calender roll and in particular when braking the same the connecting elements of the displacer are exposed to high forces that to their destruction and damage to the displacer due to overload being able to lead.
- the high specific weight of the metal sheets balancing of such internals is required, and becomes critical also thermal conduction causing the thermal deformation of the roller body of such a displacement body, in particular in its end and fastening area, felt.
- the invention is based on the task of internals for the central bore To create the roll body of heatable calender rolls, which the reprimanded Do not have disadvantages of the displacement bodies customary up to now.
- the displacer can withstand surface temperatures between 70 and 135 ° C Manufacture from common plastics, and only with rollers for soft calenders With a surface temperature of up to 200 ° C, the selection is special, more thermo-resistant Plastics required.
- a heatable calender roll is shown, the hollow cylindrical Roller body 1 is carried by flange flanges 2 flanged on both sides.
- the roller body is provided with a number of peripheral bores 3 for the passage of the heated heating medium and, for example, to reduce the total weight, provided with a central hole 4 of larger diameter.
- the heating medium and its return are supplied by an End of one of the flange pins 2 provided two-part connection head 5; but it is equally possible to end each of the flange pins 2 with a to provide one-piece connection head.
- the central bore 4 of the roller body 1 is with a displacement body 6 equipped, which is made of solid plastic.
- This one made of plastic Displacer 6 can already be fixed by simply pressing it in be connected to the roller body 1.
- the displacement body not the same over its entire length, the inside diameter the central bore 4 exceeding outer diameter, but this intended for the press fit diameter only over certain Adhere to lengths 7 and between them the outer diameter of the To reduce displacer 6 slightly.
- Displacer 6 to be pressed in a number individually and one after the other Sections be divided.
- the outer surface of the roller body shown is covered with a coating 8 Plastic equipped.
- the reflux of the heating medium to the connector 5 can be a simple Bore 9 are effected; if necessary, this can be partially, if necessary, by a Pipe is fully booked. But it is also possible to reflux the heating medium in the area of one or more grooves 10, which are axially parallel, in Form of turns, helical or the like, along the surface of the displacer 6 can pull. With appropriate design The groove can be used to heat the inner shell of the roller body become. By reducing their cross-section in the flow direction of the heating medium can the effect of increasing cooling in the flow direction be compensated. If necessary in connection with peripheral bores or only for these can any flow schemes be implemented, e.g. two parallel line branches in series with another.
- a further relief of the calender roll can be achieved if instead of one massive, pressed block of plastic as a displacer block from preferably closed pore-containing foamed plastic is provided.
- the easy processability of the plastic also allows economical installation from special installations to. This is particularly the case with steam-heated rollers axial or axially parallel steam feed holes for the opposite side of the roller body be arranged in the plastic displacement body as well as axial or axially parallel condensate drain holes.
- the displacement body For collecting the condensate can the displacement body with corresponding, preferably recessed grooves or radially circumferential grooves at the ends of the displacer 6 grooving into the ends of the Central bore 4 of the roller body.
- the supply of the peripheral holes 3 with the heating medium can be in predetermined group schemes additional design of the displacer 6 or at least its ends Achieve:
- the easy workability is as noticeable as it is the low specific weight of the plastic, which makes balancing easier or unnecessary.
- the displacer and the internals can also consist of several parts be produced and by press fit, screwing, mortising, gluing, Welding etc.
- a calender roll is shown, the hollow cylindrical roll body 11 is carried out without peripheral holes.
- the roller body is with a displacement body 12 equipped, which is designed as a hollow body and from one Plastic pipe 13 exists, which is closed on both sides by plastic flanges 14 is.
- the inner jacket of the roller body 11 and / or the jacket of the displacement body 12 are equipped with grooves 15 so that 15 passed through this groove Heating medium directly contacts the inner surface of the roller body 11 and can give off heat to this.
- a coulter could be axially parallel Grooves can be arranged, as shown in the manner of a settlement in Fig. 4; in general, however, one becomes a number like a multi-start thread intertwined, multi-start helical groove provide.
- a varied heatable calender roll 16 is shown, with a massive plastic displacer 17 is provided, which is advantageously made of closed-pore foamed plastic is created. Also extend here the channel-forming groove 15 is expediently helical, and after the Throughput, the heating medium collects in room 18 and flows through a central one Bore 9 of the displacer 17, in the end of which a pipe socket 19 is logged in, but on the other hand also over the entire length of the hole can extend.
- a separate, returning bore be when the displacer 17 according to the schematic view 6 is executed and has grooves 20 and 21, which are in the manner of a two-start Helix are arranged, and that at the left end of the displacer 17 either end in a short-circuit ring or in any other way are interconnected.
- a first channel is formed by groove 20, in which the heating medium is helical to the opposite End of the displacer 17 and thus of the roller body to be heated is performed, and from this end, the heating medium is then in the Groove 21 formed channel returned. Since there is one inlet and one outlet channel is guided adjacent, this already results in a certain adjustment of the effect the inlet to the outlet temperature.
- a varied calender roll is shown again, which is in the routing 5 corresponds to that of the displacer 12, however, like that of the Fig. 3 is made hollow for further weight reduction. In this case, if return through a space 18 is desired, it is necessary to Pipe socket 19 of FIG. 5 through the entire displacement body 12 and the To replace flange pin 2 pulling tube 22.
- FIG. 9 for example Heating medium mutually parallel groove 15 of the plastic tube 13 of the Fig. 3 used.
- the displacer body 17 of FIG. 5 is for directing the heating medium with two parallel grooves 23, 24, while the return line takes place solely through groove 25, this groove being expedient here are each only intended as a group that extends along the circumference of the displacement body 17 repeated. You can also be helical. It can be easily achieved that the outgoing line through two parallel channels 23 and 24 with a lower flow rate than the common one Return in a channel 25. Further corrections can be made here are, as shown in Fig. 10, the groove with different cross sections are executed. In terms of production, this can be achieved by a higher one Reach depth as well as milling cutters of different widths.
- Fig. 10 is the groove 35 of the displacer causing the return of the heating medium shown with a greater width than the one that caused the forwarding Grooves 33 and 34.
- systems such as those in FIG. 11 can also be created, in which three grooves 26, 27, which are operated in series, a double spiral channel is created with different flow velocities again through different groove widths and / or depths can be reached.
- a heatable calender roll is shown again, that of the fign. 1 and 2 corresponds to:
- the roller body 1 is peripheral Bores 3 equipped.
- additional heating is taken into account here:
- the heating medium rises in bores 28 to the peripheral bores 3 on, it leaves through drain holes 29, reaches space 30 and then flows through groove 31 of the plastic displacer 6, which create channels that after are limited on the outside by surfaces of the inner shell of the roller body 1, so that here again heating, for example according to the diagrams of FIGS. 4, 6 or 9 to 11 can be done.
Landscapes
- Paper (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
- Figur 1
- einen Längsschnitt durch eine periphere Bohrungen aufweisenden Kalanderwalze,
- Figur 2
- einen Querschnitt durch die Kalanderwalze nach Fig. 1,
- Figur 3
- einen Längsschnitt durch eine Kalanderwalze, deren aus Kunststoff bestehender Verdrängerkörper durch ein beidseitig durch Flansche geschlossenes Kunststoffrohr gebildet ist, dessen Mantel mit vom Heizmedium durchfließbaren Nuten ausgestattet ist,
- Figur 4
- schematisch einen abgewickelten Abschnitt des Mantels eines Verdrängerkörpers mit vom Heizmedium durchsetzte Nute in zur Vereinfachung der Darstellung gewählter achsparalleler Anordnung,
- Figur 5
- eine Kalanderwalze mit einstückig aus Kunststoff erstelltem Verdrängerkörper für einen Zweiweg-Anschlußkopf,
- Figur 6
- schematisch einen Verdrängerkörper mit in Form einer zweigängigen Schraubenlinie angelegtem Nut zur Leitung des Heizmediums, wobei die beiden Nute an ihrem linksseitigen Ende ineinander übergehen und ihre rechtsseitigen Enden mit einem Zweiwege-Anschlußkopf zu verbinden sind,
- Figur 7a, b
- Ausschnitte eines Vertikalschnitts der Figur 6,
- Figur 8
- eine der der Fig. 5 wirkungsähnliche Kalanderwalze mit aus Mantel und Deckplatten bestehenden Verdrängerkörper und einem ihn durchstoßenden Rohr,
- Fign. 9 -11
- in der Darstellung der Fig. 4 weitere Leitungsschemata von durch Nute gebildeten Flußwegen des Thermomediums, und
- Figur 12
- nochmals eine periphere Bohrungen aufweisende Kalanderwalze mit Rückleitung des Heizmediums im zwischen dem Walzenmantel und der Verdrängerkörper gebildeten Spalt oder durch Nute gebildeten Kanälen.
Claims (13)
- Mittels eines Heizmediums beheizbare Kalanderwalze, insbesondere zur Glättung oder Satinage, mit einem hohlzylindrischen, einen Verdrängerkörper aufweisenden Walzenkörper und an diesen beidseitig angeflanschten, ihn tragenden Flanschzapfen,
dadurch gekennzeichnet,
daß der in der zentralen Bohrung (4) des Walzenkörpers (1) vorgesehene Verdrängerkörper (6, 12, 17) aus einem Werkstoff besteht, der spezifisch leichter als der Werkstoff des Walzenkörpers (1) ist. - Kalanderwalze nach Anspruch 1,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6, 12, 17) aus einem Werkstoff besteht, der spezifisch leichter als das Heizmedium ist. - Kalanderwalze nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6, 17) aus Kunststoff, vorzugsweise aus massivem Kunststoff besteht. - Kalanderwalze nach Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6, 12, 17) aus vorzugsweise geschlossene Poren aufweisenden Schaumkunststoff besteht. - Kalanderwalzen nach Ansprüchen 1 bis 4,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6, 17) mindestens eine zentrale Bohrung (9) aufweist. - Kalanderwalzen nach Ansprüchen 1 bis 5,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6, 12, 17) mit mindestens einer sich entlang seines Umfanges erstreckenden Nut (10, 15, 20, 21, 23, 24, 25, 26, 27, 33, 34, 35) ausgestattet ist. - Kalanderwalze nach Anspruch 6,
gekennzeichnet durch
schraubenlinienförmig verlaufende Nute (20, 21, 31). - Kalanderwalze nach Anspruch 6,
gekennzeichnet durch
entlang von Mantellinien oder schräg gegen diese verlaufende Nute (9, 15, 31). - Kalanderwalze nach Ansprüchen 1 bis 8,
dadurch gekennzeichnet,
daß der Außendurchmesser des Verdrängerkörpers (6) einen Preßsitz in der zentralen Bohrung (4) sichert. - Kalanderwalze nach Anspruch 9,
dadurch gekennzeichnet,
daß der Außendurchmesser des Verdrängerkörpers (6) nur über mehrere Längenabschnitte (7) der zentralen Bohrung (4) des Walzenkörpers (1) angepaßt ist und zwischen diesen zurücktritt. - Kalanderwalze nach Ansprüchen 1 bis 10,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6) in Längsrichtung in einzelne Schüsse unterteilt ist. - Kalanderwalze nach Ansprüchen 1 bis 11,
dadurch gekennzeichnet,
daß der Verdrängerkörper (12) oder ihn bildende Schüsse als KunststoffHohlkörper ausgebildet sind. - Kalanderwalze nach Ansprüchen 1 bis 12,
dadurch gekennzeichnet,
daß der Verdrängerkörper (6) mehrteilig aufgebaut ist und unterschiedlichen Zwecken angepaßte Ausnehmungen aufweist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19854522 | 1998-11-26 | ||
DE19854522 | 1998-11-26 | ||
DE19950645A DE19950645A1 (de) | 1998-11-26 | 1999-10-21 | Beheizte Kalanderwalze |
DE19950645 | 1999-10-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1006236A2 true EP1006236A2 (de) | 2000-06-07 |
EP1006236A3 EP1006236A3 (de) | 2003-05-21 |
EP1006236B1 EP1006236B1 (de) | 2005-01-19 |
Family
ID=26050390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990122637 Expired - Lifetime EP1006236B1 (de) | 1998-11-26 | 1999-11-13 | Beheizbare Kalanderwalze |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1006236B1 (de) |
JP (1) | JP3443546B2 (de) |
CA (1) | CA2290291C (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1842647A1 (de) * | 2006-04-03 | 2007-10-10 | Kuraray Europe GmbH | Mehrschichtlaminate mit einseitig geprägten Folien auf Basis von teilacetalisiertem Polyvinylalkohol |
ITPI20130063A1 (it) * | 2013-07-04 | 2015-01-05 | Cosmec Italia S R L | Corpo di scambio termico e apparecchiatura per la produzione di ghiaccio, in particolare, per impiego con fluidi refrigeranti ad alta pressione, e metodo per la fabbricazione di detto corpo di scambio termico |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020033683A (ko) * | 2002-03-14 | 2002-05-07 | 김태석 | 캘린더 머신용 조립형 드릴드 롤 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3014891A1 (de) * | 1980-04-17 | 1981-10-22 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Vorrichtung mit einer mittels eines waermetraegers temperaturgeregelten hohlwalze |
DE9000980U1 (de) * | 1990-01-29 | 1990-05-10 | Schwaebische Huettenwerke Gmbh, 7080 Aalen, De |
-
1999
- 1999-11-13 EP EP19990122637 patent/EP1006236B1/de not_active Expired - Lifetime
- 1999-11-24 CA CA 2290291 patent/CA2290291C/en not_active Expired - Fee Related
- 1999-11-26 JP JP33662399A patent/JP3443546B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3014891A1 (de) * | 1980-04-17 | 1981-10-22 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Vorrichtung mit einer mittels eines waermetraegers temperaturgeregelten hohlwalze |
DE9000980U1 (de) * | 1990-01-29 | 1990-05-10 | Schwaebische Huettenwerke Gmbh, 7080 Aalen, De |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1842647A1 (de) * | 2006-04-03 | 2007-10-10 | Kuraray Europe GmbH | Mehrschichtlaminate mit einseitig geprägten Folien auf Basis von teilacetalisiertem Polyvinylalkohol |
ITPI20130063A1 (it) * | 2013-07-04 | 2015-01-05 | Cosmec Italia S R L | Corpo di scambio termico e apparecchiatura per la produzione di ghiaccio, in particolare, per impiego con fluidi refrigeranti ad alta pressione, e metodo per la fabbricazione di detto corpo di scambio termico |
Also Published As
Publication number | Publication date |
---|---|
JP2000192392A (ja) | 2000-07-11 |
JP3443546B2 (ja) | 2003-09-02 |
EP1006236A3 (de) | 2003-05-21 |
EP1006236B1 (de) | 2005-01-19 |
CA2290291A1 (en) | 2000-05-26 |
CA2290291C (en) | 2005-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT390975B (de) | Vorrichtung mit einer mit einem waermetraegermedium beheizten arbeitsflaeche | |
DE3516535C2 (de) | ||
DE2903079A1 (de) | Waermeaustauscherrohr und waermeaustauscherrohrbaugruppe fuer einen plattenverdampfer sowie verfahren zur herstellung des waermeaustauscherrohres und der waermeaustauscherrohrbaugruppe | |
EP1836349A1 (de) | Vorrichtung und verfahren zur herstellung und/oder veredelung einer faserstoffbahn | |
DE3518997C1 (de) | Schneckenstrangpresse mit einer Zylindertemperiereinrichtung | |
EP0943435B1 (de) | Kühlwalze | |
DE4404922C1 (de) | Peripher gebohrte Walze zur Wärmebehandlung von Bahnmaterial | |
DE102005000795A1 (de) | Vorrichtung und Verfahren zur Herstellung und/oder Veredelung einer Faserstoffbahn | |
DE3140425A1 (de) | Vorrichtung zum erzeugen und/oder bearbeiten von bahnmaterial | |
EP0745158B1 (de) | Dampfblaskasten | |
DE69909017T2 (de) | Giessen eines Stahlbandes | |
DE4300541A1 (de) | Temperierbare Walze | |
EP1006236B1 (de) | Beheizbare Kalanderwalze | |
DE19950645A1 (de) | Beheizte Kalanderwalze | |
DE2305115A1 (de) | Extrusionsanlage zur herstellung einer wenigstens teilweise aus thermoplast bestehenden materialbahn | |
DE2552969A1 (de) | Fuehrungsrolle fuer stranggussanlagen, mit auf einer mehrfach gelagerten achse angeordneten rollenabschnitten | |
DE3518808A1 (de) | Beheizbare glaettwerk- und kalanderwalze | |
EP1206341B1 (de) | Zylinder für einen doppelschneckenextruder | |
CH691621A5 (de) | Mattenartiger Wärmetauscher für Kühl- und/oder Heizzwecke. | |
EP2035757A1 (de) | Heizkörper, insbesondere röhrenradiator | |
DE202007006464U1 (de) | Heizplatte | |
WO2020216619A1 (de) | Extrusionszylinder mit kühl- bzw. heizmittelführung | |
EP0389819B1 (de) | Dichtungsplatten - Kalander | |
CH660518A5 (de) | Heizkoerper. | |
DE19832051C2 (de) | Heiz- bzw. Kühlkörper-Verteileranordnung |
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 |
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 |
Extension state: AL LT LV MK RO SI |
|
17P | Request for examination filed |
Effective date: 20031007 |
|
AKX | Designation fees paid |
Designated state(s): DE FI GB |
|
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): DE FI GB |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050119 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 59911482 Country of ref document: DE Date of ref document: 20050224 Kind code of ref document: P |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20050119 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20051020 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20091113 Year of fee payment: 11 Ref country code: DE Payment date: 20091120 Year of fee payment: 11 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59911482 Country of ref document: DE Effective date: 20110601 Ref country code: DE Ref legal event code: R119 Ref document number: 59911482 Country of ref document: DE Effective date: 20110531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101113 |
|
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: 20110531 |