CN1178385A - Method and device for regulating hot overload circuit breaker - Google Patents
Method and device for regulating hot overload circuit breaker Download PDFInfo
- Publication number
- CN1178385A CN1178385A CN 97117505 CN97117505A CN1178385A CN 1178385 A CN1178385 A CN 1178385A CN 97117505 CN97117505 CN 97117505 CN 97117505 A CN97117505 A CN 97117505A CN 1178385 A CN1178385 A CN 1178385A
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- circuit breaker
- adjusting device
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 title claims description 13
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000010079 rubber tapping Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 240000006909 Tilia x europaea Species 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract 1
- 229920003266 Leaf® Polymers 0.000 description 23
- 230000008569 process Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal mechanism
- H01H71/7445—Poly-phase adjustment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
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- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
An adjustment method has a rotary movement converted into a spacing variation of the release distance (y) between a mechanical detection system (2) with a number of bimetallic strips (1) and a thermal release mechanism (3). The rotary movement is effected via a setting current and a tolerance compensation within a defined scale angle range (a). The latter is divided into a first partial range for the current setting adjustment and a second partial range for tolerance compensation adjustment.
Description
The present invention relates to a kind of control method and a kind of corresponding adjusting device of release.
For example, must in the response limit of determining, open circuit by the described protective device that has time-delay overload or overcurrent release of documents such as standard IEC 947-2 and IEC 947-4-1.Like this,, open circuit and in two hours, to finish, and when being 1.05 times of adjustment electric currents, in the duration, do not allow to occur opening circuit at two hours current capacities when loading when load is 1.2 times when adjusting electric currents.In the equipment of the hot overload circuit breaker that has this form, above-mentioned requirements produces electrical current heat by electric current usually makes some bimetal leafs produce crooked transformation, and by mechanical device being realized with respect to bimetal leaf adjustment wherein mechanical device contains just like the transition function (Sprungfunktion) with dead point spring (Todpunktfeder) or interlocking (Verklinkung) form.In this case, effective bending of bimetal leaf and various influencing factor, as the current path resistance of hot overload circuit breaker, open circuit power and the elastic force of the crooked and mechanical device of the ratio of bimetal leaf are relevant.Thus, for each protective device, produce different bendings.
For the adjusting of protective device and the adjustment of its breaking current, will adjust definite interval by an adjusting device between the mechanical tapping point device that has bimetal leaf and disconnecting mechanism that has mechanical trip point.The adjustable at this interval is the requirement that need regulate protective device at a certain definite electric current scale value on the one hand, because according to the bending of each current value and relevant therewith bimetal leaf, need a definite interval.On the other hand, for different breaking currents, must can adjust different intervals, the tolerance that wherein subsidiary processing produces should be compensated respectively.
At disclosed by German patent DE-A1614675, as to be used for the bimetal relay in the tapping point device that disconnecting mechanism together constitutes an operational contact tripper, adjust the response point of this device by the inclined-plane of cam rotary head.By with the adjusting portion subregion that adjoins mutually with these both sides, electric current adjustment district the inclined-plane being divided into three parts with the electric current adjustment district in the middle of being located at, the tolerance of compensation bimetal leaf during cold calibration that can be under no current feeding condition.But, disclosed tripper has following shortcoming, and promptly because tolerance compensating can move towards both direction during its tolerance compensating, this must expand in the electric current adjustment district when direction motion among two directions.Thus, need regulate again adopting under at least one additive regulating member condition, so that when adjusting, need all the time to adopt a plurality of parts and carry out undesirablely repeatedly regulating.
The objective of the invention is to, the control method that provides a kind of this paper to start described form makes it can not only adjust variant breaking current in reliable especially and simple mode, can also carry out tolerance compensating.This will be achieved in a kind of adjusting device that has simple mechanism of especially suitable enforcement this method.
For control method, according to the present invention, above-mentioned purpose will realize like this, promptly adopt a kind of control method of hot overload circuit breaker, this hot overload circuit breaker has some and is located at the interior bimetal leaf of a mechanical tapping point device, this machinery tapping point device constitutes operational contact with a disconnecting mechanism under the situation that forms an interruption intervals, in the method, rotatablely move or rectilinear motion is transformed into interval variation in a scale scope, tolerance compensating is by only finishing towards a direction and the motion in first's scope at scale angle, and Current Regulation is by finishing towards other direction and the motion in the second portion scope of meter full scale.
Open circuit at interval and can wherein, within an effective scale angle or graduation range, not only carry out the electric current adjustment, also carry out tolerance compensating by rotatablely moving or straight-line transformation is adjusted.At this, total effective exercise district only is divided into two mutual transition, the i.e. subregion of phase mutual connection circle.Tolerance compensating is only in a subregion and the electric current adjustment is only carried out in another subregion.Avoided when tolerance compensating, entering electric current adjustment district thus reliably, therefore, be no longer necessary for calibration current adjustment district and regulate again.
The present invention promptly when required interval variation is finished by the motion of utilization in a corresponding stroke, can realize simple especially and reliable electric current adjustment also based on such consideration, also can realize simple especially and reliable tolerance compensating.This point still can reach in the following manner, and promptly total effective exercise district only is divided into two subregions.Thus, in the stroke that moved along the inclined-plane, tolerance compensating can realize by the motion towards a direction only, and the electric current adjustment can realize by the motion towards other direction only.
That part of zone that is used for the electric current adjustment in order to ensure scale angle or scale stroke is not used to tolerance compensating, according to regulating purpose, a starting point is set between two parts zone, from this point, position for tolerance compensating can be set in the effective exercise zone, thus, can guarantee a required enough big subregion of electric current adjustment.
For adjusting device, according to the present invention, above-mentioned purpose can realize like this, promptly adopt a kind of adjusting device of hot overload circuit breaker, this hot overload circuit breaker has some and is located at the interior bimetal leaf of a mechanical tapping point device, this tapping point device constitutes operational contact with a disconnecting mechanism under the situation that forms an interruption intervals, wherein, regulating element is to make its motion be transformed into interval variation to be provided with a compensating element, that has a scale scope, and it comprises an independent first's scope and the second portion scope that is used for Current Regulation for tolerance compensating.
At this, adjusting device comprises a compensating element,, therefore, utilize same, promptly utilize a solid memder can not only finish basic adjusting and tolerance compensating, can also finish the adjustment of breaking current.As in total mechanical device inside, be used to change between bimetal leaf and the mechanical trip point compensating element, at interval, be provided with a rotary head that has cam worthily, its total rotating range determines that effective scale angle is as its meter full scale.
Also can adopt worm screw or screw thread to replace cam element by way of compensation.The employing of worm screw can obtain bigger scale expansion, and wherein, the stroke that is used for changing at interval that is produced that once rotatablely moves can be distributed on corresponding rotation revolution.Equally, when adopting screw thread, the slope of thread is adaptive.In being arranged to the compensating element, of thread forms, under any circumstance can both compensating with adopting cam and compare bigger tolerance range.
Compensating element, as being used to change between the bimetal leaf of total mechanical device inside and mechanical cut-off point at interval also can be designed to a lever, and its total linear motion range determines that effective scale stroke is as meter full scale.Wherein, compare with whirligig, the major advantage of lever is, does not need to formulate special operating curve.
The advantage of utilizing the present invention to obtain especially is, by utilizing only two one side power supply stream adjustment and supplying the subregion of tolerance compensating to determine an effective meter full scale on the other hand, thereby realized that with simple especially mode and method the interval a mechanical device inside, between some bimetal leafs and mechanical cut-off point changes, guaranteed bimetal leaf compensate for bend effectively reliably under different breaking current conditions thus.For this reason, when tolerance compensating, only need a single adjusting device or adjustment process.And then the tolerance compensating district is a total electric current adjustment district, and its starting point is preferably come in addition mark by applying one from adjusting a graduation mark that head stretches to housing.
At interval the adjusting of opening circuit for above-mentioned form at this, only needs one to be arranged to or to be cam-type, or is open circuit element or the lever of the screw-type element that opens circuit.Thus, tolerance compensating no matter, promptly the basis is regulated, or the adjustment of breaking current, utilizes same member just can finish.
Below will the present invention is further illustrated by accompanying drawing, in the accompanying drawing:
Fig. 1 is the schematic diagram that has the release of adjusting device;
Fig. 2 is as the adjusting device schematic diagram element that opens circuit, that have the distribution of scale angle with cam;
Fig. 3 and Fig. 4 are the element alternative form of implementation in the partial detailed diagrammatic sketch III of Fig. 1 or IV that opens circuit shown in Figure 2;
Fig. 5 and Fig. 6 are as the adjusting device schematic diagram element that opens circuit, that have the scale flight distribution with lever.
In the drawings, corresponding mutually part is represented with identical Reference numeral.
Hot overload circuit breaker shown in Figure 1 comprises three bimetal leafs 1 that are located in the mechanical tapping point device 2, and this machinery tapping point device opens circuit in formation one and constitutes operational contact with a disconnecting mechanism 3 that has compensating plate 4 under the y situation at interval.An adjusting device 5 that connects with disconnecting mechanism 3 is used for the adjustment at interval between crooked stroke or bimetal leaf 1 and the mechanical trip point 6 in disconnecting mechanism 3.
When regulating hot overload circuit breaker, at first make the position of bimetal leaf 1 and mechanical tapping point device 2 adaptive, so that it is synchronous with mode not shown further and method.Ensuing basic adjusting or preconditioning are used for adjusting determined reset condition, wherein by 5 pairs of crooked strokes of representing bimetal leaf 1 of adjusting device, between the compensating plate 4 of tapping point device 2 and disconnecting mechanism 3, promptly and the interval y between the mechanical trip point 6 adjust.
Therefore for hot overload circuit breaker being regulated and being carried out the breaking current adjustment; be together in series by all electrodes and add current capacity to bimetal leaf with protective device; in this thermal calibration process; bimetal leaf 1 is coupled with current capacity at the current value of determining with in definite time interval, and this current value can reach the manyfold of adjusting electric current or measuring electric current.When be added with current capacity during when finishing, between mechanical tapping point device 2 that has bimetal leaf 1 and disconnecting mechanism 3, have residue interval delta y that opens circuit, this interval is lowered to zero and so directly cause and opens circuit by adjusting device 5.During being added with current capacity, the bending of adjusting and bimetal leaf 1 is represented with arrow 7 substantially.Variation or the minimizing Δ y of the interval y that opens circuit that produces in the adjustment process represent with arrow 8.
During adjustment process, no matter be basic adjusting as tolerance compensating, or the adjustment of breaking current, all finish by adjusting device 5, at this, no matter this adjusting device still all comprises same compensating element, 9 for the breaking current adjustment to tolerance compensating.In the embodiment shown in fig. 1, compensating element, 9 is designed to have the cams of rotary head 10.The type of action of adjusting device 5 is illustrated by the cam of element by way of compensation 9 shown in Figure 2.
Compensating element, 9 is used to make rotatablely move and is transformed into stroke along direction shown in the arrow 8.Be that the changes delta y of the interval y between bimetal leaf 1 and the mechanical tapping point 6 can both be adjusted in this case, between any needed tapping point device 2 and the disconnecting mechanism 3.For this reason, effective scale angle of realizing the compensating element, 9 rotatablely move is distributed in one and is used for the maximum scale angle regulatory region b that electric current is adjusted for the regulatory region c of tolerance compensating and one.Must be noted that no matter be for Current Regulation, still for tolerance compensating, should have enough compensate for bend for the bimetal leaf in the mechanical device, having with the scale that is used in the electric current adjustment serves as reliably to adjust and enough expansions.
(second) subregion b that power supply stream is adjusted is between starting point or anchor point 11 and limes superiors mark 12.This limes superiors utmost point note has been determined the maximum point on the cam in an embodiment, and the place, coboundary that electric current is adjusted at that point.Equally, (first) subregion c is on the one hand with anchor point 11, and following on the other hand limit markers 13 is the border.This limit inferior mark is being represented the smallest point on the cam equally.The lower boundary of Current Regulation is positioned on this aspect.Starting point 11 when regulating by chosen in advance and between two subregion b and c.Then from this point, by adjust to a position among the c of subregion to the respective direction rotation.In cam position shown in Figure 2, then be to the right, be clockwise rotatablely moving.Thus, the subregion b that stream regulates that avoids on the one hand powering is too little.On the other hand, enter this subregion b when avoiding tolerance compensating, that is enter the Current Regulation district, because should when tolerance compensating, be synchronized with the movement to a certain extent in the zone.And then tolerance compensating provides total electric current adjustment district automatically, its starting point is with mode not shown further and method, by adopting one from adjusting all right one way or the other the identifying of graduation mark that knob shape adjusting device 5 extends to Shell of circuit breaker and for example produces in a passage by laser.The electric current adjustment then by to other direction that is left or anticlockwise rotatablely moving carry out.
Useful scale angle α is divided into one separately for subregion c and this distribution form for another part zone b of breaking current adjustment of tolerance compensating, in adjustment process, is suitable for the compensating element, 9 shown in Fig. 3 and 4 too.In this case, two kinds of alternative forms of implementation are identical, promptly are provided with screw thread, with being transformed into rectilinear path so that rotatablely move, the y at interval thereby change is opened circuit.
By shown in Figure 3, compensating element, 9 comprise one have knob 10 ' worm screw 14, it makes and required is used for changing the flight distribution of y at interval on change more.With required flight distribution on the turn-taking of some, this also can by adopt screw shown in Figure 4 15 by way of compensation element 9 realize.In both cases, available rotating range, be effective scale angle α with cam by way of compensation element 9 compare especially big.The consequent scale expansion that has corresponding major part zone b and c is compared also bigger.Thus, king-sized tolerance can not only be compensated, also different breaking currents can be especially accurately adjusted.
In adjustment process, effective scale stroke a ' correspondingly is divided into a second portion zone b ' who adjusts for breaking current for the zone c ' of the first of tolerance compensating and, this equally also be applicable to the adjusting 9 shown in Fig. 5 and 6 '.At this, be provided with a lever 16, with changing the linear course of y at interval that opens circuit so that linear movement is transformed into.The subregion b ' that power supply stream is adjusted equally starting point or anchor point 11 ' and limes superiors mark 12 ' between.Subregion c ' same on the one hand by fixing point 11 ', and on the other hand by limit inferior mark 13 ' constitute border.
Claims (9)
1. the control method of a hot overload circuit breaker, this hot overload circuit breaker has some and is located at the interior bimetal leaf (1) of a mechanical tapping point device (2), this machinery tapping point device constitutes operational contact with a disconnecting mechanism (3) under the situation that forms an interruption intervals (y), in the method, rotatablely move or rectilinear motion at a scale scope (a, a ') is transformed into interval variation (Δ y) in, it is characterized in that, tolerance compensating passes through only towards a direction and at scale angle (a, a ') the scope (c of first, c ') Nei motion is finished, and Current Regulation is passed through towards other direction and at meter full scale (a, a ') motion in the second portion scope (b, b ') is finished.
2. in accordance with the method for claim 1, it is characterized in that, in the meter full scale (a, a ') between limes superiors mark (12,12 ') and the limit inferior mark (13,13 '), be provided with a Current Regulation starting point (11,11 ').
3. according to claim 1 or 2 described methods, it is characterized in that the place that begins of that part of scope of the Current Regulation after tolerance compensating (b, b ') is provided with reticule.
4. the adjusting device of a hot overload circuit breaker, this hot overload circuit breaker has some and is located at the interior bimetal leaf (1) of a mechanical tapping point device (2), this tapping point device constitutes operational contact with a disconnecting mechanism (3) under the situation that forms an interruption intervals (y), wherein, regulating element (9,9 ') be provided with one and have a scale scope (a for making its motion be transformed into interval variation (Δ y), a ') compensating element, (9,9 '), it comprises an independent scope (c of first for tolerance compensating, c ') and a second portion scope (b, b ') that is used for Current Regulation.
5. according to the described adjusting device of claim 4, wherein, the compensating element, (9) that changes that is used to rotatablely move is the cam of a scale angle for (a).
6. according to the described adjusting device of claim 4, wherein, the compensating element, (9) that changes that is used to rotatablely move is worm thread or the regular screw threads (14 or 15) of a scale angle for (a).
7. according to the described adjusting device of claim 4, wherein, the compensating element, (9) that is used for the linear movement transformation is the lever (16) of a scale displacement for (a ').
8. according to each described adjusting device in the claim 4 to 7, wherein, compensating element, (9,9 ') effective meter full scale (a, a ') have the limit inferior mark (13 that a limes superiors mark (12,12 ') and one power supply is regulated, 13 '), wherein, the scope (c of first, c ') with starting point (11,11 ') and limit inferior mark (13,13 ') be the border, and second portion scope (b, b ') above limit markers (12,12 ') and starting point (11) are the border.
9. hot overload circuit breaker that is used for protective device, it has each described adjusting device (5) in the claim 4 to 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19640387 | 1996-09-30 | ||
| DE19640387.1 | 1996-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1178385A true CN1178385A (en) | 1998-04-08 |
| CN1071050C CN1071050C (en) | 2001-09-12 |
Family
ID=7807503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97117505A Expired - Fee Related CN1071050C (en) | 1996-09-30 | 1997-08-27 | Method and device for regulating hot overload circuit breaker |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0833357B1 (en) |
| CN (1) | CN1071050C (en) |
| DE (1) | DE59712868D1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295608B (en) * | 2007-04-23 | 2011-01-26 | 三菱电机株式会社 | Circuit breaker |
| CN101364509B (en) * | 2007-08-07 | 2011-04-20 | Ls产电株式会社 | Method for adjusting trip sensitivity of thermal overload protection apparatus |
| CN101364508B (en) * | 2007-08-07 | 2012-01-25 | Ls产电株式会社 | Thermal overload trip apparatus and method for adjusting trip sensitivity thereof |
| CN101436494B (en) * | 2007-11-15 | 2013-02-27 | 富士电机机器制御株式会社 | Breaker |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10104901A1 (en) * | 2001-02-03 | 2002-08-08 | Abb Patent Gmbh | Method for adjusting the thermal tripping system of an electrical switching device, in particular a motor protection switch |
| DE112004002905A5 (en) * | 2004-04-23 | 2007-05-24 | Siemens Ag | Overload release and adjustment procedure for the same |
| CN101350272B (en) * | 2008-08-27 | 2010-11-10 | 常熟市天银机电有限公司 | Apparatus for automatically mounting and outputting bimetallic strip of electric motor protector |
| CN104752106B (en) * | 2015-03-17 | 2017-03-01 | 温州职业技术学院 | Batch type chopper overload protection full-automatic regulation system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE543460A (en) * | 1954-12-23 | |||
| DE1614675B2 (en) * | 1967-12-09 | 1973-03-22 | Siemens AG, 1000 Berlin u. 8000 München | RELEASE DEVICE FOR BIMETAL RELAY |
| DE3305646C2 (en) * | 1982-06-22 | 1986-07-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Thermal overcurrent relay |
| FR2536906A1 (en) * | 1982-11-25 | 1984-06-01 | Telemecanique Electrique | Thermal relay with adjustable automatic reset. |
| DE3401901A1 (en) * | 1984-01-20 | 1985-08-01 | Brown, Boveri & Cie Ag, 6800 Mannheim | Thermal overcurrent relay having an adjusting eccentric |
| DE3435228A1 (en) * | 1984-09-26 | 1986-04-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | BIMETAL RELEASE |
| FR2667979B1 (en) * | 1990-10-11 | 1994-04-01 | Telemecanique | DIFFERENTIAL THERMAL TRIGGER WITH BILAMES. |
-
1997
- 1997-08-27 CN CN97117505A patent/CN1071050C/en not_active Expired - Fee Related
- 1997-09-16 DE DE59712868T patent/DE59712868D1/en not_active Expired - Fee Related
- 1997-09-16 EP EP19970116108 patent/EP0833357B1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295608B (en) * | 2007-04-23 | 2011-01-26 | 三菱电机株式会社 | Circuit breaker |
| CN101364509B (en) * | 2007-08-07 | 2011-04-20 | Ls产电株式会社 | Method for adjusting trip sensitivity of thermal overload protection apparatus |
| CN101364508B (en) * | 2007-08-07 | 2012-01-25 | Ls产电株式会社 | Thermal overload trip apparatus and method for adjusting trip sensitivity thereof |
| CN101436494B (en) * | 2007-11-15 | 2013-02-27 | 富士电机机器制御株式会社 | Breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0833357A2 (en) | 1998-04-01 |
| CN1071050C (en) | 2001-09-12 |
| EP0833357A3 (en) | 2000-11-02 |
| DE59712868D1 (en) | 2007-09-20 |
| EP0833357B1 (en) | 2007-08-08 |
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Granted publication date: 20010912 Termination date: 20090928 |