EP0829573B1 - Press blanket for a press section - Google Patents
Press blanket for a press section Download PDFInfo
- Publication number
- EP0829573B1 EP0829573B1 EP97111137A EP97111137A EP0829573B1 EP 0829573 B1 EP0829573 B1 EP 0829573B1 EP 97111137 A EP97111137 A EP 97111137A EP 97111137 A EP97111137 A EP 97111137A EP 0829573 B1 EP0829573 B1 EP 0829573B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press cover
- press
- cover according
- running direction
- grooves
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
- D21F3/0227—Belts or sleeves therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/901—Impermeable belts for extended nip press
Definitions
- the present invention relates to a press jacket flexible material for a pressing device for drainage a material web in a press nip, the Press jacket transverse to the web running direction over a press area, which corresponds to the width of the press nip, and per se edge areas adjoining both sides of the pressing area extends and on its outside with recesses for Water absorption is provided.
- Such a press jacket is from DE 44 01 580 A1 known.
- the press jacket described in this document is along its entire width in the direction of web travel extended grooves for water absorption. additionally can be provided further grooves or holes that should increase the elasticity of the press cover, but not are trained to absorb water.
- the provided over the entire width of the press jacket Water grooves have the disadvantage that over time Damage, particularly in the form of cracks, because the press jacket is weakened in the area of the grooves.
- the invention has for its object a press jacket of the type mentioned in such a way that the danger damage to the press casing, in particular belt formation, is reduced without dewatering performance the press jacket is reduced.
- the recesses in the two outer areas of the press cover can preferably be designed as blind holes, for example circular, polygonal or oval Can have cross-section.
- the grooves in the inner area of the press jacket can either be straight in the direction of web travel run, or for example wavy or be zigzag-shaped.
- the total opening area of the wells per unit area of the press jacket is in the inner area and in both outer Areas of the press jacket preferably substantially the same.
- the total storage volume of the wells is also pro Area unit of the press jacket in the inner area and two outer areas of the press shell preferably in essentially the same. Deviations can occur in both cases be of the order of ⁇ 10%. hereby there will be even drainage throughout Width of the web guaranteed.
- the invention is preferred for a press jacket for a Shoe press applicable, but can also be used for example a press jacket of a rigid roller can be used.
- the press jacket 1 shown in Fig. 1 extends transversely to Web running direction I over a press area P, which by the Width of a press shoe 2 acting on the press jacket 1 is specified, and adjoining on both sides Edge areas R. To the two sides, the press jacket 1, as shown, tapered in a known manner his.
- the press jacket 1 On the side facing away from the press shoe 2 is the press jacket 1 provided with depressions 3 and 4, which the recording of Water from one through the nip of the whole here guided web of material, not shown, serve in particular paper web.
- the press jacket 1 in the embodiment of 1 is formed as a circular blind holes 3 in cross section, while in the inner space remaining in between B the depressions of the press jacket 1 as in the direction of web travel I extending straight grooves 4 are formed.
- the number and cross section of the holes 3 and the grooves 4 is chosen so that the total opening cross section of the wells 3 and 4 of the press jacket 1 in areas A and B. per unit area of the roll shell 1 essentially is the same size, so that a sufficient drainage performance is given over the entire pressing range P. Should a different drainage performance over the pressing area P may be desired, so the number and the total opening cross section of wells 3 and 4 of course be varied accordingly. The same applies to the total storage volume of wells 3 and 4.
- Fig. 2 of an inventive Press cover 1 essentially agrees with the variant of Fig. 1 match.
- the left half of Fig. 2 are in the outer area A rectangular cross-section depressions 3 and in the inner region B in the web running direction I zigzag extending grooves 4 shown.
- the right Half of FIG. 2 are depressions 3 in the outer region A. with an oval cross-section and wavy in the inner area B. Grooves 4 shown.
- the different forms of the wells 3 and 4 can be combined in any way , that is, not all in FIG. 2 Variations shown for a single press jacket 1 be provided.
- the length is limited by the Wells 3 in the two outer areas A cracking by spreading in the area of the wells Damage caused by the load on the press jacket when Operation of the pressing device prevented.
- I continuous grooves 4 in the inner area B of the press jacket 1 is also a good drainage performance of the press jacket 1 ensured.
Landscapes
- Paper (AREA)
- Drying Of Solid Materials (AREA)
- Press Drives And Press Lines (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Preßmantel aus flexiblem Material für eine Preßvorrichtung zur Entwässerung einer Materialbahn in einem Preßspalt, wobei sich der Preßmantel quer zur Bahnlaufrichtung über einen Preßbereich, der der Breite des Preßspaltes entspricht, und über sich an beiden Seiten des Preßbereichs anschließende Randbereiche erstreckt und auf seiner Außenseite mit Vertiefungen zur Wasseraufnahme versehen ist.The present invention relates to a press jacket flexible material for a pressing device for drainage a material web in a press nip, the Press jacket transverse to the web running direction over a press area, which corresponds to the width of the press nip, and per se edge areas adjoining both sides of the pressing area extends and on its outside with recesses for Water absorption is provided.
Ein derartiger Preßmantel ist aus der DE 44 01 580 A1 bekannt. Der in dieser Druckschrift beschriebene Preßmantel ist über seine gesamte Breite mit in Bahnlaufrichtung erstreckten Rillen zur Wasseraufnahme versehen. Zusätzlich können weitere Rillen oder Bohrungen vorgesehen sein, die die Elastizität des Preßmantels erhöhen sollen, jedoch nicht zur Wasseraufnahme ausgebildet sind.Such a press jacket is from DE 44 01 580 A1 known. The press jacket described in this document is along its entire width in the direction of web travel extended grooves for water absorption. additionally can be provided further grooves or holes that should increase the elasticity of the press cover, but not are trained to absorb water.
Die über die gesamte Breite des Preßmantels vorgesehenen Wasserrillen haben den Nachteil, daß im Laufe der Zeit Beschädigungen, insbesondere in Form von Rissen, auftreten, da der Preßmantel im Bereich der Rillen geschwächt ist.The provided over the entire width of the press jacket Water grooves have the disadvantage that over time Damage, particularly in the form of cracks, because the press jacket is weakened in the area of the grooves.
Der Erfindung liegt die Aufgabe zugrunde, einen Preßmantel der eingangs genannten Art so auszubilden, daß die Gefahr von Beschädigungen des Preßmantels, insbesondere von RiBbildungen, verringert wird, ohne daß dadurch die Entwässerungsleistung des Preßmantels herabgesetzt wird. The invention has for its object a press jacket of the type mentioned in such a way that the danger damage to the press casing, in particular belt formation, is reduced without dewatering performance the press jacket is reduced.
Diese Aufgabe wird dadurch gelöst, daß die Vertiefungen an beiden Seiten des Preßmantels jeweils in einem äußeren Bereich, der innerhalb des Preßbereiches beginnt und sich bis in den Randbereich hineinerstreckt, durch eine Vielzahl von in Bahnlaufrichtung in ihrer Länge begrenzten Ausnehmungen und im verbleibenden inneren Bereich durch im wesentlichen in Bahnlaufrichtung ununterbrochen erstreckte Rillen gebildet sind.This object is achieved in that the wells both sides of the press jacket in an outer Area that begins within the press area and itself stretched into the edge area, by a variety of limited in length in the web running direction Recesses and in the remaining inner area by im essentially extended continuously in the web running direction Grooves are formed.
Durch die Rillen im inneren Bereich des Preßmantels wird eine ausreichende, gegenüber herkömmlichen Preßmänteln praktisch nicht herabgesetzte Entwässerungsleistung des Preßmantels gewährleistet, während durch die in ihrer Länge begrenzten Ausnehmungen in den beiden äußeren Bereichen Rißbildungen verhindert werden. Es wurde nämlich festgestellt, daß Beschädigungen hauptsächlich im Übergangsbereich zwischen dem Preßbereich und dem jeweils angrenzenden Randbereich auftreten. Zwar können auch bei den in ihrer Länge begrenzten Ausnehmungen in den beiden äußeren Bereichen des Preßmantels durch die hohe Belastung Beschädigungen auftreten, diese werden jedoch in ihrer Ausbreitung aufgrund der begrenzten Länge der Ausnehmungen gehemmt.Through the grooves in the inner area of the press cover an adequate, compared to conventional press sleeves drainage performance of the Press sleeve guaranteed while through in its length limited recesses in the two outer areas Cracks can be prevented. It was found that damage mainly in the transition area between the pressing area and the adjacent border area occur. Although can also in the length limited recesses in the two outer areas of the Press jacket can be damaged by the high load, however, these are due to their spread the limited length of the recesses inhibited.
Durch die Kombination von in Bandlaufrichtung erstreckten Rillen im inneren Bereich des Preßmantels mit in ihrer Länge begrenzten Ausnehmungen in den beiden äußeren Bereichen wird so eine hohe Haltbarkeit des Preßmantels mit einer unverändert guten Wasseraufnahmeleistung erreicht.By the combination of extending in the tape running direction Grooves in the inner area of the press casing with their length limited recesses in the two outer areas so a high durability of the press jacket with an unchanged good water absorption performance achieved.
Die Ausnehmungen in den beiden äußeren Bereichen des Preßmantels können bevorzugt als Sacklöcher ausgebildet sein, die beispielsweise kreisförmigen, polygonalen oder ovalen Querschnitt aufweisen können. Die Rillen im inneren Bereich des Preßmantels können entweder geradlinig in Bahnlaufrichtung verlaufen, oder auch beispielsweise wellenartig oder zickzackförmig ausgebildet sein.The recesses in the two outer areas of the press cover can preferably be designed as blind holes, for example circular, polygonal or oval Can have cross-section. The grooves in the inner area of the press jacket can either be straight in the direction of web travel run, or for example wavy or be zigzag-shaped.
Die Gesamtöffnungsfläche der Vertiefungen pro Flächeneinheit des Preßmantels ist im inneren Bereich und in beiden äußeren Bereichen des Preßmantels bevorzugt im wesentlichen gleich. Ebenso ist das Gesamtspeichervolumen der Vertiefungen pro Flächeneinheit des Preßmantels im inneren Bereich und den beiden äußeren Bereichen des Preßmantels bevorzugt im wesentlichen gleich. Abweichungen können in beiden Fällen etwa in der Größenordnung von ± 10% vorhanden sein. Hierdurch wird eine gleichmäßige Entwässerung über die gesamte Breite der Warenbahn gewährleistet.The total opening area of the wells per unit area of the press jacket is in the inner area and in both outer Areas of the press jacket preferably substantially the same. The total storage volume of the wells is also pro Area unit of the press jacket in the inner area and two outer areas of the press shell preferably in essentially the same. Deviations can occur in both cases be of the order of ± 10%. hereby there will be even drainage throughout Width of the web guaranteed.
Die Erfindung ist bevorzugt bei einem Preßmantel für eine Schuhpresse anwendbar, kann beispielsweise aber auch bei einem Preßmantel einer starren Walze verwendet werden.The invention is preferred for a press jacket for a Shoe press applicable, but can also be used for example a press jacket of a rigid roller can be used.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend beschrieben. Es zeigen, jeweils in schematischer Darstellung,
- Fig. 1
- eine Draufsicht auf eine erste Variante eines erfindungsgemäßen Preßmantels und
- Fig. 2
- eine Draufsicht auf eine zweite Variante eines erfindungsgemäßen Preßmantels.
- Fig. 1
- a plan view of a first variant of a press jacket according to the invention and
- Fig. 2
- a plan view of a second variant of a press jacket according to the invention.
Der in Fig. 1 gezeigte Preßmantel 1 erstreckt sich quer zur Bahnlaufrichtung I über einen Preßbereich P, der durch die Breite eines auf den Preßmantel 1 wirkenden Preßschuhs 2 vorgegeben ist, und über sich an beiden Seiten anschließende Randbereiche R. Zu den beiden Seiten hin kann der Preßmantel 1, wie dargestellt, in bekannter Weise verjüngt ausgebildet sein. The press jacket 1 shown in Fig. 1 extends transversely to Web running direction I over a press area P, which by the Width of a press shoe 2 acting on the press jacket 1 is specified, and adjoining on both sides Edge areas R. To the two sides, the press jacket 1, as shown, tapered in a known manner his.
Auf der dem Preßschuh 2 abgewandten Seite ist der Preßmantel
1 mit Vertiefungen 3 und 4 versehen, die der Aufnahme von
Wasser aus einer durch den Preßspalt der hier im ganzen
nicht dargestellten Preßvorrichtung geführten Warenbahn,
insbesondere Papierbahn dienen. In zwei äußeren Bereichen A,
die jeweils innerhalb des Preßbereiches P beginnen und sich
bis in den Randbereich R hineinerstrecken, sind die Vertiefungen
des Preßmantels 1 bei dem Ausführungsbeispiel von
Fig. 1 als im Querschnitt kreisförmige Sacklöcher 3 ausgebildet,
während in dem dazwischen verbleibenden inneren Bereich
B die Vertiefungen des Preßmantels 1 als in Bahnlaufrichtung
I erstreckte geradlinige Rillen 4 ausgebildet sind.On the side facing away from the press shoe 2 is the press jacket
1 provided with
Die Anzahl und der Querschnitt der Löcher 3 und der Rillen 4
ist so gewählt, daß der Gesamtöffnungsquerschnitt der Vertiefungen
3 und 4 des Preßmantels 1 in den Bereichen A und B
pro Flächeneinheit des Walzenmantels 1 im wesentlichen
gleich groß ist, so daß eine ausreichende Entwässerungsleistung
über den gesamten Preßbereich P gegeben ist. Sollte
eine unterschiedliche Entwässerungsleistung über den Preßbereich
P gewünscht sein, so können die Anzahl und der Gesamtöffnungsquerschnitt
der Vertiefungen 3 und 4 selbstverständlich
entsprechend variiert werden. Dasselbe gilt für
das Gesamtspeichervolumen der Vertiefungen 3 und 4.The number and cross section of the
Die in Fig. 2 dargestellte Variante eines erfindungsgemäßen
Preßmantels 1 stimmt im wesentlichen mit der Variante von
Fig. 1 überein. Unterschiedlich sind jedoch die Formen der
Vertiefungen 3 und 4. In der linken Hälfte von Fig. 2 sind
im äußeren Bereich A im Querschnitt rechteckige Vertiefungen
3 und im inneren Bereich B in Bahnlaufrichtung I zickzackförmig
erstreckte Rillen 4 dargestellt. In der rechten
Hälfte von Fig. 2 sind im äußeren Bereich A Vertiefungen 3
mit ovalem Querschnitt und im inneren Bereich B wellenförmige
Rillen 4 gezeigt. Die verschiedenen Formen der Vertiefungen
3 und 4 können in beliebiger Weise miteinander kombiniert
werden, das heißt, es müssen nicht alle in Fig. 2
gezeigten Variationen bei einem einzigen Preßmantel 1
vorgesehen sein. Außerdem sind noch weitere Variationen der
Formen der Vertiefungen 3 und 4 möglich, solange sich die
Vertiefungen 4 im inneren Bereich B in Bahnlaufrichtung I
ununterbrochen erstrecken und die Vertiefungen 3 in den
beiden äußeren Bereichen A in Bahnlaufrichtung I in ihrer
Länge begrenzt sind.The variant shown in Fig. 2 of an inventive
Press cover 1 essentially agrees with the variant of
Fig. 1 match. However, the forms of the
Wells 3 and 4. In the left half of Fig. 2 are
in the outer area A
In allen Fällen wird durch die in ihrer Länge begrenzten Vertiefungen 3 in den beiden äußeren Bereichen A eine Rißbildung durch Ausbreitung im Bereich der Vertiefungen entstehender Beschädigungen durch die Belastung des Preßmantels beim Betrieb der Preßvorrichtung verhindert. Durch die in Bahnlaufrichtung I ununterbrochenen Rillen 4 im inneren Bereich B des Preßmantels 1 wird zugleich eine gute Entwässerungsleistung des Preßmantels 1 sichergestellt. In all cases, the length is limited by the Wells 3 in the two outer areas A cracking by spreading in the area of the wells Damage caused by the load on the press jacket when Operation of the pressing device prevented. By in the direction of web travel I continuous grooves 4 in the inner area B of the press jacket 1 is also a good drainage performance of the press jacket 1 ensured.
- 11
- Preßmantelpress jacket
- 22
- Preßschuhpress shoe
- 33
- Sacklochblind
- 44
- Rillegroove
- II
- BahnlaufrichtungWeb direction
- AA
- äußerer Bereichouter area
- BB
- innerer Bereichinner area
- PP
- Preßbereichpress area
- RR
- Randbereichborder area
Claims (10)
- Press cover (1) of flexible material for' a pressing device for dewatering a material web in a press nip, the press cover (1) extending transversely with respect to the web running direction (I) over a pressing region (P) which corresponds to the width of the press nip and over edge regions (R) adjoining on both sides and being provided on its outer side with depressions (3, 4) to pick up water, characterized in that the depressions (3, 4) on both sides of the press cover (1) are in each case formed in an outer region (A), which begins within the pressing region (P) and extends into the edge region (R), by a large number of recesses (3) whose length is limited in the web running direction (I) and, in the remaining inner region (B), by extended grooves (4) which are substantially uninterrupted in the web running direction (I).
- Press cover according to Claim 1, characterized in that blind holes (3) are provided in the two outer regions (A).
- Press cover according to Claim 2, characterized in that the blind holes (3) have a circular cross section.
- Press cover according to Claim 2, characterized in that the blind holes (3) have a polygonal cross section.
- Press cover according to Claim 2, characterized in that the blind holes (3) have an oval cross section.
- Press cover according to one of the preceding claims, characterized in that the grooves (4) run rectilinearly in the web running direction (I).
- Press cover according to one of Claims 1 to 5, characterized in that the grooves (4) run in the manner of waves in the web running direction (I).
- Press cover according to one of Claims 1 to 5, characterized in that the grooves (4) run in a zigzag shape in the web running direction (I).
- Press cover according to one of the preceding claims, characterized in that the total opening area of the depressions (3, 4) in the press cover (1) per unit area of the press cover (1) is substantially equal in the inner region (B) and in the two outer regions (A).
- Press cover according to one of the preceding claims, characterized in that the total storage volume of the depressions (3, 4) in the press cover (1) per unit area of the press cover (1) is substantially equal in the inner region (B) and in the two outer regions (A).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19637477A DE19637477A1 (en) | 1996-09-13 | 1996-09-13 | Press jacket for a press device |
| DE19637477 | 1996-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0829573A1 EP0829573A1 (en) | 1998-03-18 |
| EP0829573B1 true EP0829573B1 (en) | 2003-03-19 |
Family
ID=7805621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97111137A Expired - Lifetime EP0829573B1 (en) | 1996-09-13 | 1997-07-03 | Press blanket for a press section |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6030503A (en) |
| EP (1) | EP0829573B1 (en) |
| AT (1) | ATE234959T1 (en) |
| DE (2) | DE19637477A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104109981A (en) * | 2008-05-27 | 2014-10-22 | 阿尔巴尼国际公司 | Boot-shaped press belt having a grooved surface |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3614793B2 (en) * | 2001-04-27 | 2005-01-26 | ヤマウチ株式会社 | Shoe press belt |
| JP2003049380A (en) * | 2001-07-31 | 2003-02-21 | Ichikawa Woolen Textile Co Ltd | Belt for shoe press |
| JP3614830B2 (en) * | 2002-04-11 | 2005-01-26 | ヤマウチ株式会社 | Shoe press belt and shoe press apparatus using the same |
| US7014733B2 (en) * | 2002-05-14 | 2006-03-21 | Stowe Woodward L.L.C. | Belt for shoe press and shoe calender and method for forming same |
| US7144480B2 (en) * | 2003-04-17 | 2006-12-05 | Albany International Corp. | Grooved belt with rebates |
| US20040234716A1 (en) * | 2003-05-21 | 2004-11-25 | Madden Michael D. | Method for forming endless belt |
| JP3825435B2 (en) * | 2003-09-04 | 2006-09-27 | ヤマウチ株式会社 | Press belt and shoe press roll |
| EP1682718A1 (en) * | 2003-11-03 | 2006-07-26 | Albany International Corp. | Belt with variable grooves |
| EP1694911A1 (en) * | 2003-11-18 | 2006-08-30 | Albany International Corp. | Shoe press belt having a grooved surface |
| FI116076B (en) * | 2004-02-10 | 2005-09-15 | Metso Paper Inc | Grooved forming drum |
| JP2006143471A (en) * | 2004-10-18 | 2006-06-08 | Hokushin Ind Inc | Paper feeding roller |
| JP4477025B2 (en) * | 2007-03-12 | 2010-06-09 | イチカワ株式会社 | Shoe press belt for papermaking |
| JP4972438B2 (en) * | 2007-03-22 | 2012-07-11 | イチカワ株式会社 | Shoe press belt for papermaking |
| TW200932662A (en) * | 2008-01-18 | 2009-08-01 | Univ Nat Taiwan | Roller with microstructure, mold and manufacturing method thereof |
| DE102010028917A1 (en) | 2010-05-12 | 2011-11-17 | Voith Patent Gmbh | Press sleeve for press roll of shoe press for dewatering e.g. paper, has recesses formed as blind elongated holes, where base surface of elongated holes is formed in longitudinal and transverse directions in planar manner |
| DE102011002498B4 (en) * | 2011-01-11 | 2022-01-13 | Voith Patent Gmbh | Tear-resistant edge for perforated film covering |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US31923A (en) * | 1861-04-02 | Improved steam-pump | ||
| US1925917A (en) * | 1932-06-07 | 1933-09-05 | Otto T Chalon | Paper press belt |
| US4366025A (en) * | 1981-06-04 | 1982-12-28 | Beloit Corporation | Suction press roll |
| FI75620C (en) * | 1982-04-01 | 1988-07-11 | Tampella Oy Ab | LAONGZONSPRESS FOER EN PAPPERSMASKIN. |
| JPS5954598U (en) * | 1982-10-01 | 1984-04-10 | 市川毛織株式会社 | Pressure belt for wide nip press of paper machine |
| US4944820A (en) * | 1988-04-08 | 1990-07-31 | Beloit Corporation | Method for making a blanket for an extended nip press |
| JP3160397B2 (en) * | 1991-11-08 | 2001-04-25 | ヨット・エム・フォイト・ゲーエムベーハー | Roll with separate skin and roll core |
| DE4237091A1 (en) * | 1991-11-08 | 1993-05-13 | Voith Gmbh J M | Paper-making press roller - has thinner mantle at axial end zones to allow bending |
| DE4401580A1 (en) * | 1994-01-20 | 1994-06-01 | Voith Gmbh J M | Paper making press section - has reduced stiffness at edges of units forming press gap to reduce wear at edges |
| DE4411621A1 (en) * | 1994-04-02 | 1995-10-05 | Voith Sulzer Papiermasch Gmbh | Long-life abrasion-proof pressing cover to drain water from paper web |
| DE4445472C2 (en) * | 1994-12-20 | 2000-05-11 | Voith Sulzer Papiermasch Gmbh | Press jacket for a press device for dewatering a paper web |
-
1996
- 1996-09-13 DE DE19637477A patent/DE19637477A1/en not_active Withdrawn
-
1997
- 1997-07-03 DE DE59709547T patent/DE59709547D1/en not_active Expired - Fee Related
- 1997-07-03 AT AT97111137T patent/ATE234959T1/en not_active IP Right Cessation
- 1997-07-03 EP EP97111137A patent/EP0829573B1/en not_active Expired - Lifetime
- 1997-08-25 US US08/917,291 patent/US6030503A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104109981A (en) * | 2008-05-27 | 2014-10-22 | 阿尔巴尼国际公司 | Boot-shaped press belt having a grooved surface |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE234959T1 (en) | 2003-04-15 |
| EP0829573A1 (en) | 1998-03-18 |
| DE19637477A1 (en) | 1998-03-19 |
| DE59709547D1 (en) | 2003-04-24 |
| US6030503A (en) | 2000-02-29 |
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