EP1103764B1 - Schutzkäfig für Wandrinne - Google Patents

Schutzkäfig für Wandrinne Download PDF

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Publication number
EP1103764B1
EP1103764B1 EP00204141A EP00204141A EP1103764B1 EP 1103764 B1 EP1103764 B1 EP 1103764B1 EP 00204141 A EP00204141 A EP 00204141A EP 00204141 A EP00204141 A EP 00204141A EP 1103764 B1 EP1103764 B1 EP 1103764B1
Authority
EP
European Patent Office
Prior art keywords
cage
inner pipe
pipe
distal end
receiving space
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
Application number
EP00204141A
Other languages
English (en)
French (fr)
Other versions
EP1103764A1 (de
Inventor
Jurgen Johannes Jacobus Gerardus Egging
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.)
Interactive Bv
Original Assignee
INTERACTIVE BOUWPRODUKTEN BV
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 INTERACTIVE BOUWPRODUKTEN BV filed Critical INTERACTIVE BOUWPRODUKTEN BV
Publication of EP1103764A1 publication Critical patent/EP1103764A1/de
Application granted granted Critical
Publication of EP1103764B1 publication Critical patent/EP1103764B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/04—Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement

Definitions

  • the present invention relates in general to a cage for a wall duct system, comprising two pipes arranged one inside the other, for a combustion unit, such as a central heating boiler.
  • the inner pipe is a flue-gas outlet duct for discharging flue gas from the combustion unit to the outside air
  • the substantially annular space between the inner pipe and the outer pipe is an air feed duct for feeding fresh air to the combustion unit from the outside.
  • the outer pipe it is desirable for the outer pipe to be substantially horizontally oriented or to slope downwards at a slight angle towards the outside, so that no rain water can flow inwards, i.e. towards the combustion unit, through the air supply duct.
  • the inner pipe is generally arranged concentrically inside the outer pipe.
  • central heating boilers can be classified into three types: "normal efficiency” (NE), “improved efficiency” (IE), and “high efficiency” (HE), with an efficiency of ⁇ 83%, 83-90%, and >90%, respectively.
  • NE normal efficiency
  • IE improved efficiency
  • HE high efficiency
  • Wall duct systems of the above type can be used for all three types of central heating boilers.
  • the demands which they have to satisfy differ for the three types of central heating boilers referred to above.
  • water such as rain water
  • IE boiler or an NE boiler however, this is not permitted.
  • the inner pipe is preferably arranged at a slight angle, with the lowest point being situated at that end of the inner pipe which is remote from the boiler, referred to below as the "distal end".
  • Rain water which enters into the distal end of the inner pipe collects on the outwardly sloping base of the inner pipe and flows away outwards.
  • the inner pipe in this case is horizontally oriented; although the water will not flow away outwards, the water will evaporate on account of the hot flue gases and will be discharged to the outside together with the flue gases.
  • the inner pipe is arranged inclined such that the distal end forms the highest point.
  • the distal end of the inner pipe is held in position with respect to the distal end of the outer pipe by a cage, which also protects the distal ends of the inner and outer pipes from entry by leaves and the like.
  • a cage which also protects the distal ends of the inner and outer pipes from entry by leaves and the like.
  • An important object of the present invention is to provide a wall duct system in which, using only one type of cage, it is still possible to create three different orientations of the inner pipe with respect to the outer pipe.
  • the present invention aims to provide a cage for a wall duct system, which cage can be used to give an inner pipe three different orientations with respect to an outer pipe.
  • the present invention aims to provide a cage for a wall duct system which can be produced relatively easily and at low cost.
  • a protective cage for a wall duct system has at least two different coupling options for an inner pipe.
  • different orientations of the inner pipe with respect to the outer pipe are possible using one and the same protective cage by coupling the inner pipe to different ones of said coupling options.
  • a protective cage has at least one coupling option for an inner pipe, in which case the inner pipe is oriented eccentrically with respect to the outer pipe.
  • the inner pipe is oriented eccentrically with respect to the outer pipe.
  • different orientations of the inner pipe with respect to the outer pipe are possible using one and the same protective cage by rotating the protective cage with respect to the centre axis of the outer pipe.
  • a protective cage for a wall duct system has at least two different coupling options for an inner pipe.
  • a first coupling option the inner pipe is held in a centred position with respect to the outer pipe, thus ensuring a horizontal orientation of the inner pipe.
  • the inner pipe is held eccentrically with respect to the outer pipe, thus ensuring an inclined orientation of the inner pipe.
  • the upwards sloping orientation of the inner pipe is ensured; in a second orientation of the protective cage with respect to the outer pipe, which is rotated through 180° with respect to the first orientation, the downwards sloping orientation of the inner pipe is ensured.
  • a protective cage for a wall duct system has at least one coupling option for an inner pipe, the inner pipe being held eccentrically with respect to the outer pipe, thus ensuring an inclined orientation of the inner pipe.
  • the upwards sloping orientation of the inner pipe is ensured; in a second orientation of the protective cage with respect to the outer pipe, which is rotated through 180° with respect to the first orientation, the downwards sloping orientation of the inner pipe is ensured; in a third orientation of the protective cage with respect to the outer pipe, which is rotated through 90° with respect to the first orientation, the horizontal orientation of the inner pipe is ensured.
  • Figure 1 diagrammatically shows a wall 2 where the outside air is situated on one side (the left-hand side in the figure) and a combustion unit, which is not shown for the sake of simplicity, is situated on the other side (the right-hand side in the figure).
  • a passage opening through which an outer pipe 3 of a wall duct system 1 extends.
  • the free or distal end 4 of the outer pipe 3 is situated substantially in the plane of the outer surface of the wall 2.
  • the outer pipe 3 is connected to an air inlet of the combustion chamber of the combustion unit (not shown).
  • the outer pipe 3 is substantially horizontally oriented; the outer pipe 3 could also slope downwards slightly, i.e. the distal end is the lowest point.
  • an inner pipe 5 Inside the outer pipe 3 is arranged an inner pipe 5, the free or distal end 6 of which extends beyond the distal end 4 of the outer pipe. At its other end, the inner pipe 5 is connected to a gas outlet of the combustion unit (not shown).
  • Combustion gases are discharged from the combustion unit to the environment via an outlet duct 7 defined by the inner pipe 5, as indicated by the arrows P1.
  • Fresh air is fed from the environment to the combustion unit via a feed duct 8 defined between the inner pipe 5 and the outer pipe 3, as indicated by the arrows P2.
  • the inner pipe 5 is held in place inside the outer pipe 3 by means of any appropriate members which are known per se and are not shown for the sake of simplicity. It is assumed that the inner pipe 5 and the outer pipe 3 are centred with respect to one another at this location.
  • the wall duct system 1 also comprises a protective cage 10, which is arranged over the distal ends 4 and 6 of the outer pipe 3 and the inner pipe 5, respectively.
  • An important function of the cage 10 is, firstly, allowing gas/air to pass through and, secondly, preventing leaves and animals from being able to enter the pipes 3 and/or 5.
  • the cage 10 comprises a grate-like front 11 which extends over the open, distal end 6 of the inner pipe 5, and a substantially annular attachment collar 12, by means of which the cage 10 is attached to the outer pipe 3.
  • the attachment collar 12 is expediently cylindrical, and the attachment collar bears against the inner surface of the outer pipe 3. Although it is possible to fix the attachment collar 12 with respect to the outer pipe 3, for example by means of a screw or the like, it is sufficient for the attachment collar 12 to be clamp-fitted into the outer pipe 3.
  • An annular flange 13 is arranged around the attachment collar 12.
  • the principal function of this flange 13 is to prevent rain from being able to reach the gap between the outer pipe 3 and the wall 2 directly.
  • the flange 13 may be formed integrally with the cage 10, as illustrated; preferably, however, to facilitate fitting of the wall duct 1, the flange 13 is designed as a separate component, preferably made from rubber or a similar material, and the cage 10 is provided with means for retaining the flange 13, for example a circumferential groove on the outer surface of the cage 10.
  • the cage 10 has a grate-like lateral surface section 14, the axial length of which substantially corresponds to the axial length of that part of the inner pipe 5 which projects beyond the outer pipe 3.
  • the lateral surface section 14 adjoins the circumferential edge of the front 11, but this is not essential: the front 11 could have a greater diameter than the lateral surface section 14.
  • the lateral surface section 14 adjoins the attachment collar 12 and therefore the inner circumferential edge of the flange 13, but this is not essential, too: the lateral surface section 14 could have a larger diameter than the attachment collar 12 and could thus adjoin the surface of the flange 13.
  • the lateral surface section 14 may be cylindrical, in which case the diameter of the front 11 is substantially equal to the diameter of the attachment collar 12. In the example shown, the front 11 has a smaller diameter than the attachment collar 12, so that the lateral surface section 14 is in the form of part of a conical wall.
  • the distal end 6 of the inner pipe 5 is attached to the front 11 of the cage 10, as will be explained in more detail below. Therefore, the cage 10 also serves to hold the distal end 6 of the inner pipe 5 in place with respect to the distal end 4 of the outer pipe 3.
  • the precise location where the inner pipe 5 is attached to the front 11 of the cage 10 is the decisive factor for the orientation of the inner pipe with respect to the outer pipe.
  • the distal end 6 of the inner pipe 5 is centred with respect to the front 11 of the cage 10, meaning that the middle of the front substantially coincides with the centre axis of the inner pipe 5. Since the front 11 is concentric with respect to the attachment collar 12, the cage 10 in this case positions the distal end 6 of the inner pipe 5 concentrically with respect to the distal end 4 of the outer pipe 3. Since, as stated above, the inner pipe 5 is already held concentrically with respect to the outer pipe 3 closer to the boiler (not shown), the inner pipe 5 is in this case, therefore, oriented coaxially with respect to the outer pipe 3, and therefore substantially horizontally, over its entire length.
  • Figure 2 is a diagrammatic side view, similar to figure 1, of an example in which the distal end 6 of the inner pipe 5 is situated below the middle of the front 11 of the cage 10, i.e. the middle of the front 11 is situated at a vertical distance above the centre axis of the inner pipe 5.
  • the cage 10 positions the distal end 6 of the inner pipe 5 eccentrically with respect to the distal end 4 of the outer pipe 3, specifically in such a manner that the centre of the distal end 6 of the inner pipe 5 is at a lower level than the centre of the distal end 4 of the outer pipe 3.
  • the inner pipe 5 is held concentrically with respect to the outer pipe 3 closer to the boiler (not shown), the inner pipe 5 is therefore in this case inclined to the horizontal, as shown in exaggerated form in figure 2, the distal end 6 forming the lowest point, so that any rainwater which enters does not flow to the connected boiler, but rather drains outwards.
  • FIG. 3 diagrammatically shows a vertical cross section of a preferred embodiment of a cage 10 according to the present invention.
  • the front 11 On its inner side, that is to say on its principal surface facing towards the attachment collar 12, the front 11 is provided with first and second receiving spaces 21 and 22 for accommodating the circular end 6 of the inner pipe 5.
  • Each receiving space 21 and 22 is formed as a series of one or more notches or sunken sections or recesses or slots in the material of the front 11 or, as shown, as a series of one or more notches or sunken sections or slots in projections 16, 17 formed on the front 11.
  • the front 11 is designed as a grate, as shown more clearly in figure 4 et seq., which grate preferably, and as shown, comprises a combination of radial bars and tangential bars.
  • the receiving spaces 21 and 22 are formed on the said bars, preferably on the radial bars, although it is not necessary for the said projections to be formed on all the bars.
  • the recesses which define a receiving space are situated on the circumference of a circle with a diameter equal to the diameter of the inner pipe 5.
  • the cage 10 has a vertically oriented radial bar 15, with a first projection 16 situated in the vicinity of its top end and a second projection 17 situated in the vicinity of its bottom end.
  • the first projection 16 comprises a recess 21 1 which forms part of the first receiving space 21 and a recess 22 1 which forms part of the second receiving space 22.
  • the second projection 17 comprises a recess 21 2 which forms part of the first receiving space 21 and a recess 22 2 which forms part of the second receiving space 22.
  • the recess 21 1 and 21 2 which form part of the first receiving space 21 are located on a circle whose centre point M 21 lies on the centre axis of the cage 10.
  • the recesses 22 1 and 22 2 which form part of the second receiving space 22 are on a circle whose centre point M 22 is situated at a radial distance from the centre axis of the cage 10.
  • Figure 4A shows a perspective view of this situation
  • figure 4B shows a front view
  • Figure 4C shows an enlarged view of part of figure 4A.
  • FIG. 5A shows a perspective view of this situation
  • figure 5B shows a front view
  • Figure 5C shows an enlarged view of part of figure 5A.
  • the second receiving space 22 is situated higher than the first receiving space 21, as illustrated in figure 3, so that the end 6 of the inner pipe 5 forms the highest point of this pipe and rain water which enters will be discharged to a connected boiler. If the cage 10 is rotated through 180° with respect to its centre axis, the end 6 of the inner pipe 5 will form the lowest point of this pipe and incoming rainwater will be discharged outwards; however, this situation is not illustrated separately.
  • the cage 10 comprises an attachment plate 32 extending tangentially between two axial bars 31 of the lateral surface section 14 and having a threaded hole 33 for accommodating an attachment screw (not shown). After the inner pipe 5 has been put in place, fixation is effected by tightening this attachment screw. Obviously, the cage 10 may be provided with a plurality of such attachment plates 32.
  • the present invention provides a wall duct system 1 with an outer pipe 3 and an inner pipe 5, the end 6 of which projects beyond the end 4 of the outer pipe 3.
  • a cage 10 extends over the ends 4 and 6 of these pipes 3 and 5 and is connected to these ends.
  • the cage has an attachment collar 12.
  • the cage comprises two receiving spaces 21 and 22, which are at a radial distance from one another, on the front 11 thereof. If the inner pipe is arranged in a first receiving space 21, the inner pipe is substantially coaxial with respect to the outer pipe. If the inner pipe is arranged in a second receiving space 22, the inner pipe is at an angle with respect to the outer pipe. Consequently, it is possible to establish three possible orientations of the inner pipe with respect to the outer pipe by means of a single cage 10.
  • the cage 10 is preferably made from plastic or aluminium, preferably as an injection-moulded product.
  • a receiving space 21 or 22 comprises two notches or recesses or slots 21 1 and 21 2 or 22 1 and 22 2 , respectively.
  • this number of two notches or recesses per receiving space is not essential; in principle, there may be any desired number of notches or recesses. The said number may even equal one: in figure 3, the effect achieved by the present invention would be attained even if, for example, the bottom projection 17 were not present.
  • the lateral surface section 14 not to be present, for use in a wall duct system in which the inner pipe 5 does not project beyond the outer pipe 3. In this case, the front 11 would directly adjoin the attachment collar 12.
  • the front 11 does not have to be positioned perpendicular to the centre axis of the cage 10.
  • a first receiving space corresponds to a coaxial positioning of the inner pipe with respect to the outer pipe
  • a second receiving space corresponds to an inclined positioning of the inner pipe with respect to the outer pipe.
  • the two receiving spaces it is also possible for the two receiving spaces to correspond to two different, non-coaxial arrangements of the inner pipe with respect to the outer pipe, with different angles of inclination.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Frying-Pans Or Fryers (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Sewage (AREA)
  • Pinball Game Machines (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (11)

  1. Käfig (10) für ein Wandröhrensystem (1) mit zwei Rohrleitungen (3; 5), wobei eine innerhalb der anderen angeordnet ist und der Käfig Folgendes umfasst:
    eine Befestigungsmuffe (12) zum Anbringen des Käfigs (10) an einem Ende (4) einer ersten Rohrleitung (3) des Wandröhrensystems (1); und
    ein Frontteil (11) mit wenigstens zwei Aufnahmeplätzen (21; 22) zum Aufnehmen eines Endes (6) einer zweiten Rohrleitung (5) des Wandröhrensystems (1);
    wobei sich die beiden Aufnahmeplätze (21; 22) in einem radialen Abstand zueinander befinden.
  2. Käfig nach Anspruch 1, wobei ein erster Aufnahmeplatz (21) konstruiert ist, eine Zentrierung der zweiten Rohrleitung (5) im Bezug auf die erste Rohrleitung (3) zu veranlassen, und ein zweiter Aufnahmeplatz (22) konstruiert ist, eine außermittige Position der zweiten Rohrleitung (5) im Bezug auf die erste Rohrleitung (3) herzustellen.
  3. Käfig nach Anspruch 1 oder 2, wobei jeder Aufnahmeplatz (21; 22) durch wenigstens eine Aussparung oder Kerbe oder Rille oder Ähnliches (211, 212; 221, 222) in dem Frontteil (11) oder in einem auf dem Frontteil (11) geformten Vorsprung (16; 17) definiert wird.
  4. Käfig nach einem der vorangegangenen Ansprüchen, wobei jeder Aufnahmeplatz (21; 22) kreisförmig ist, ein erster Aufnahmeplatz (21) einen Mittelpunkt (M21) hat, der sich auf der Mittelachse des Käfigs (10) befindet, und der zweite Aufnahmeplatz (22) einen Mittelpunkt (M22) hat, der sich in einem radialen Abstand zu der Mittelachse des Käfigs (10) befindet.
  5. Käfig nach einem der vorangegangenen Ansprüchen, wobei der Käfig aus Kunststoff oder Aluminium, vorzugsweise als ein Spritzgussprodukt, gefertigt ist.
  6. Wandröhrensystem (1), das eine äußere Rohrleitung (3) mit einem fernen Ende (4) und einer in der äußeren Rohrleitung angeordneten inneren Rohrleitung (5) mit einem fernen Ende (6) umfasst, das zum Anschluss an einen Lufteinlass bzw. einen Verbrennungsgasauslass einer Verbrennungseinheit, wie einem Zentralheizungskessel oder Ähnlichem, gedacht ist, wobei das Wandröhrensystem (1) darüber hinaus einen Käfig (10) nach einem der vorangegangenen Ansprüchen umfasst, der mit den fernen Enden (4; 6) der Rohrleitungen (3; 5) gekoppelt ist.
  7. Wandröhrensystem nach Anspruch 6, wobei das ferne Ende (6) der inneren Rohrleitung (5) in den ersten Aufnahmeplatz (21) des Käfigs (10) eingepasst ist und dadurch im Bezug auf die äußere Rohrleitung (3) zentriert wird.
  8. Wandröhrensystem nach Anspruch 6, wobei das ferne Ende (6) der inneren Rohrleitung (5) in den zweiten Aufnahmeplatz (22) des Käfigs (10) eingepasst ist und der Käfig (10) so ausgestattet ist, dass die innere Rohrleitung (5) im Bezug auf die äußere Rohrleitung (3) geneigt ist, wobei das ferne Ende (6) der inneren Rohrleitung (5) der höchste Punkt ist.
  9. Wandröhrensystem nach Anspruch 6, wobei das ferne Ende (6) der inneren Rohrleitung (5) in den zweiten Aufnahmeplatz (22) des Käfigs (10) eingepasst ist und der Käfig (10) so ausgestattet ist, dass die innere Rohrleitung (5) im Bezug auf die äußere Rohrleitung (3) geneigt ist, wobei das ferne Ende (6) der inneren Rohrleitung (5) der niedrigste Punkt ist.
  10. Wandröhrensystem nach Anspruch 6, wobei das ferne Ende (6) der inneren Rohrleitung (5) in den zweiten Aufnahmeplatz (22) des Käfigs (10) eingepasst ist und der Käfig (10) so ausgestattet ist, dass die innere Rohrleitung (5) horizontal ausgerichtet ist.
  11. Wandröhrensystem (1), das eine äußere Rohrleitung (3) mit einem fernen Ende (4) und einer in der äußeren Rohrleitung angeordneten inneren Rohrleitung (5) mit einem fernen Ende (6) umfasst, das zum Anschluss an einen Lufteinlass bzw. einen Verbrennungsgasauslass einer Verbrennungseinheit, wie einem Zentralheizungskessel oder Ähnlichem, gedacht ist, wobei das Wandröhrensystem (1) darüber hinaus einen Käfig (10) umfasst, der mit den fernen Enden (4; 6) der Rohrleitungen (3; 5) gekoppelt ist, wobei der Käfig Folgendes umfasst:
    eine Befestigungsmuffe (12) zum Anbringen des Käfigs (10) an dem fernen Ende (4) der äußeren Rohrleitung (3); und
    ein Frontteil (11) mit wenigstens einem Aufnahmeplatz (22) zum Aufnehmen des fernen Endes (6) der inneren Rohrleitung (5);
    wobei der Aufnahmeplatz (22) konstruiert ist, eine außermittige Position der inneren Rohrleitung (5) im Bezug auf die äußere Rohrleitung (3) herzustellen;
    wobei das ferne Ende (6) der inneren Rohrleitung (5) in den Aufnahmeplatz (22) des Käfigs (10) eingepasst wird und der Käfig (10) so ausgestattet ist, dass die innere Rohrleitung (5) horizontal ausgerichtet ist.
EP00204141A 1999-11-23 2000-11-22 Schutzkäfig für Wandrinne Expired - Lifetime EP1103764B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1013646 1999-11-23
NL1013646A NL1013646C2 (nl) 1999-11-23 1999-11-23 Beschermkorf voor een muurdoorvoersysteem.

Publications (2)

Publication Number Publication Date
EP1103764A1 EP1103764A1 (de) 2001-05-30
EP1103764B1 true EP1103764B1 (de) 2003-10-29

Family

ID=19770309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00204141A Expired - Lifetime EP1103764B1 (de) 1999-11-23 2000-11-22 Schutzkäfig für Wandrinne

Country Status (4)

Country Link
EP (1) EP1103764B1 (de)
AT (1) ATE253203T1 (de)
DE (1) DE60006209D1 (de)
NL (1) NL1013646C2 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381244A1 (fr) * 1977-02-18 1978-09-15 Saunier Duval Ventouse pour appareils du genre chaudiere etanche a gaz
DE29515326U1 (de) * 1994-09-19 1995-11-30 Vaillant Joh Gmbh & Co Kombinierte Luft-Abgasleitung

Also Published As

Publication number Publication date
ATE253203T1 (de) 2003-11-15
DE60006209D1 (de) 2003-12-04
EP1103764A1 (de) 2001-05-30
NL1013646C2 (nl) 2001-05-28

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