CN1167098C - Device for indicating electrical fault in breaking device with as differential switch - Google Patents
Device for indicating electrical fault in breaking device with as differential switch Download PDFInfo
- Publication number
- CN1167098C CN1167098C CNB981186696A CN98118669A CN1167098C CN 1167098 C CN1167098 C CN 1167098C CN B981186696 A CNB981186696 A CN B981186696A CN 98118669 A CN98118669 A CN 98118669A CN 1167098 C CN1167098 C CN 1167098C
- Authority
- CN
- China
- Prior art keywords
- indicating
- indicating device
- balladeur train
- fault
- electromagnet
- 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 - Fee Related
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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
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
-
- 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
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
Landscapes
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Keying Circuit Devices (AREA)
Abstract
A device for indicating electrical faults such as insulative faults in a switch device such as a differential switch, includes: a pair of separable contacts per pole, a contact operating mechanism, a trip device comprising a means for detecting an electrical fault and an electromagnet (11) able to bring about opening of the contacts when automatic tripping occurs following a fault, and a means (M) for indicating the tripped state of the switchgear apparatus. The indicating means comprises an indicator (5) which is drived between a first position corresponding to a normal operation state and a second position corresponding to a tripping state, and a mechanism (3) fixing the indicator (5) at the second position so as to store tripping information until a closing operation of the device is completed.
Description
Technical field
The present invention relates to a kind of device of in breaking device with as differential switch, indicating electric fault.
Background technology
Known differential switch or circuit breaker comprise the mechanism that indicates differential fault, so that the user detects the insulation fault that exists in its electric equipment.
Some known indicating mechanisms adopt the form (light-emitting diode system or other luminous indication) of indicator light, work under the electric equipment power supply of breaker protection.The best safety state that this will cause the user to realize, when particularly differential fault message is unreliable, and regardless of the state of power supply.
Other this class mechanism is as file EP0,275,750 described mechanical type mechanisms.In this document, differential circuit breaker comprises transformer and relay, the dropout rod work of the indicating lock by having latch hook mechanism and faulty indication lever.Used relay is the magnetic padlock type relay with two settling positions.But such relay is relatively more expensive, and this switch embodiment needs a large amount of parts.
Known file US4,382,270 have described another kind of solenoid type mechanical type indicating mechanism, but it must reset respectively.
Summary of the invention
The differential circuit breaker that the invention provides a kind of accident indicator of tripper, particularly Simple Design, is independent of device power supply (DPS) work and can resets certainly, and a kind of switch or circuit breaker that disposes this device.
Therefore, the objective of the invention is to realize the device of aforementioned type, it is characterized in that comprising indicating device is overcome make described indicating device return primary importance mechanism effect and be fixed on the mechanism of said second position, thereby store dropout information, up to the shutoff operation of finishing equipment.
According to the inventive system comprises:
Every extremely a pair of separable contacts is electrically connected with a pair of splicing ear;
The contact controlling organization comprises the handle that is connected to the actuator of contact by the mechanical transfer connecting rod;
Trip gear comprises the mechanism of detecting electric fault and the tripping mechanism that when dropout automatically takes place after the fault contact is opened; And
The mechanism of indicator cock equipment trip status comprises an indicating device, owing to the action of electromagnet, can occupy the second excitation settling position of the first non-excitation settling position or indication fault, and plug (14),
It is characterized in that this device also comprises:
By handle (2) in resting position with indicating device is overcome make described indicating device (5) return the mechanism (10 of primary importance, 12) effect and be fixed on and drive the balladeur train (3) that transmits between the position of said second position, thereby store dropout information, up to the shutoff operation of finishing equipment, wherein, described balladeur train comprises with described plug (14) thereby the spring (6) that cooperates the folding that described indicating device (5) is remained on viewing position when differential fault takes place to turn part (15) and balladeur train is turned back to during at resetting means non-excitation settling position.
According to a particular embodiment of the invention, indicating device is driven reliably by the electromagnet between the above-mentioned two positions.
According to concrete feature, above-mentioned tripping mechanism is the electromagnet that has plunger, and indicating device is driven by the plunger between the above-mentioned two positions.
According to another feature, the contact controlling organization comprises the handle that is connected to the contact actuator by the mechanical transfer connecting rod, makes indicating device be fixed on the mechanism of the second place by described handle drives.
The present invention also aims to realize a kind of switchgear, particularly dispose the differential switch or the circuit breaker of the device that comprises aforementioned feature or its combination respectively.
Description of drawings
By the detailed description of carrying out below with reference to as an example accompanying drawing, other advantage and feature will be more readily apparent from, wherein:
Fig. 1 and 2 is vertical partial sectional view of differential circuit breaker of the present invention, shows the specific embodiment of the indicating device that lays respectively at resting position and faulty indication position;
Fig. 3 and 4 is the fragmentary, perspective view of the described equipment of corresponding Fig. 1 and 2;
Fig. 5,6,7 and 8 is respectively the perspective view of sledge drive plug, indicating device, balladeur train and balladeur train return spring;
Fig. 9 is the view identical with Fig. 1 and 2 with 10, shows another embodiment of indicating device;
Figure 11 illustrates the fragmentary, perspective view of this another embodiment of device at indicating positions;
Figure 11 a is the view identical with preceding figure, but is illustrated in the device of resting position;
Figure 12,13,14 and 15 is respectively the perspective view of the used balladeur train plug of second embodiment, indicating device, balladeur train and balladeur train return spring; And
Figure 16 illustrates the full view that disposes according to the inner body of the equipment of the device of second embodiment of the invention.
Embodiment
Among the figure, differential circuit breaker D places in the parallel six face-piece bodies of being made by moulded insulation 1, and housing 1 is designed to be clamped and installed in DIN rail (not shown).This circuit breaker D is designed to be connected with ac power system also by the splicing ear that is provided with in the housing 1 and can realizes some functions.Thereby in fact when transship, its interrupt circuit of can threading off when short circuit or differential fault.
This circuit brake D comprises the M of mechanism that indicates differential fault, can make the user diagnose its electric equipment insulation fault rather than overload fault or short trouble to occur.By this indicating mechanism, the user can set about locating insulation fault immediately, thereby has ensured personal safety and safeguarding effectively.
For simplicity, differential component is only described below.
Under known way, this equipment among two embodiment comprises: every extremely a pair of separable contacts (not shown); Be used to control the controlling organization of two contacts, comprise the handle 2 that is connected to the contact actuator by the mechanical transfer connecting rod; The driving spring (not shown), drive controlling mechanism opening contact when taking place to thread off automatically breaking down; Differential trip gear has the detection of electrical leakage transformer, and electromagnet 11, is designed to cooperate with the lock pin of the described mechanical linkage of mechanism.Electromagnet 11 has plunger 8, and plunger 8 is designed to slide between the resting position of Fig. 1,3 and 9,11a and Fig. 2,4,10 and 11 excitation dropout position in conduit when the conduit that is formed by coil pipe flows through when electric current.Should return resting position automatically by spring 10 by iron core 8 after the dropout.
Embodiment according to Fig. 1 to 8, the M of indicating mechanism comprises the indicating device 5 of the rod type that the fixing point 9 that adopts winding apparatus is hinged, described bar 5 one ends are connected with the iron core 8 of electromagnet 11 in hinged way, its other end has marking device 16, and marking device 16 is designed to window 13 operations that are positioned at housing 1 top.Indicating device 5 also comprises can be with the plug 14 of inflection part 15 operation of balladeur train 3, and inflection part 15 is parallel to unshakable in one's determination 8 and is slidably mounted in the housing 1.Balladeur train 3 is driven by handle 2 and slides between resting position shown in Figure 1 and energized position shown in Figure 2, will further describe this below.For this reason, handle 2 comprises attachment plug 4, can be at a certain shutoff stroke rear drive balladeur train 3 of handle 2.Spring 6 is installed between balladeur train 3 and the housing 1, so that balladeur train 3 returns resting position.
Embodiment according to Fig. 9 to 15, indicating device M comprises element as hereinbefore, but comprise the first end 5a and the second end 5b that is connected with the iron core 8 of electromagnet 11 that cooperates with fixed mechanism 3 around fixed axis 9 hinged indicating devices 5, thereby indicating device 5 drives and rotates with respect to described iron core when unshakable in one's determination 8 reset along the dropout direction by unshakable in one's determination 8.
According to this embodiment, the M of indicating mechanism also comprises spring 12, can make marking device 16 return resting position after the shutoff operation of contact.
The operation of apparatus of the present invention is described in succession with regard to two embodiment below:
According to first embodiment, circuit breaker D closes (Fig. 1 and 3), because part 7 is fixing, circuit breaker and differential attachment are lockable, and marking device 16 zero clearings, and be promptly invisible from window 13, and part 7 is fixing by the iron core 8 of differential tripping system.When differential fault took place, as Fig. 2, because 8 tripping forces that provide (arrow A) unshakable in one's determination, indicating device 5 and marking device 16 pivoted around axle 9.Discharge from latch hook and the handle 2 that disposes connector 4 acts in the mechanism that drives balladeur train 3 in the circuit breaker side, when moving (arrow B) from left to right, because material gap 15, balladeur train 3 pins the plug 14 of indicating device marking device and is fixed in (Fig. 2 and 4) on " visual " position.
When device reset, the spring 10 of electromagnet 11 is pushed iron core 8 resting position to and is made differential assembly be reset to the service position.The motion of return spring 6 is pushed balladeur train 3 resting position to and is discharged marking device 16.Thereby equipment is in the service position and can finishes its task.
According to second embodiment, circuit breaker D closes, and as Fig. 9, circuit breaker and differential attachment are lockable, and marking device 16 zero clearings.When differential fault took place, as Figure 10 and 11, because the influence of 8 tripping forces that provide (arrow A) unshakable in one's determination, indicating device 5 and marking device 16 pivoted around axle 9.Discharge and the handle 2 that disposes connector or plug 4 drives balladeur trains 3 from latch hook in the circuit breaker side, balladeur train 3 moves (arrow B) from left to right, and the plug 14 that pins the indicating device marking device also is fixed on " visual " position.Different with first embodiment, circuit breaker one is opened (non-visual, owing to indicating device 5 can rotate in the direction with respect to unshakable in one's determination 8, so this is possible) unshakable in one's determination 8 and is promptly returned its initial position.When device reset (or closing), return spring 6 is pushed balladeur train 3 resting position to and is discharged indicating device marking device 16.Spring 12 makes marking device 16 return its stowed position then.Thereby equipment is in the service position and can finishes its task.Can find that window 13 protects the function of internal mechanism in addition, can prevent that exotic from entering.
As follows from the technological merit of user perspective:
The indicating device marking device is independent of the power supply operation of the electric equipment of breaker protection: it is mechanical.This has strengthened security of users.In fact, to guarantee separating of transmission equipment side and load side electrical circuitry in all cases; Power supply is that the differential fault message of what state all is reliable; The information that user's insulation has obtained under guarantee and the various situation all is stored in the memory.
Can make indication zero clearing (some device needs the actions in two stages) by the user to the simple shutoff operation of circuit breaker.
Inherent technological merit of the present invention is as follows:
The stress that is applied on the differential tripping relay is little, therefore the reliability that can not reduce to protect.The actuating force of indicating mechanism is little, has reduced the operation friction.
It is independent mutually with the initialization of indication to make the differential of circuit breaker and reset function element turn back to initial condition.Operating machine between differential function element, circuit breaker tripping device and the differential fault indication function element connects by they independently initialization realizations separately.
The window protection equipment of being made by transparent material is not subjected to external action.It makes foul and other dirt can not access arrangement inside, and on the operation of sign device and tripping relay any external disturbance can not be arranged.
Can notice that the assembling of mechanism can be carried out simply by suitable device.When differential function element cover spare was installed, device made indicating device marking device spring be fixed on settling position when assembling and second device makes this spring assemble automatically at operating position.Another device makes the balladeur train spring fixing during the equipment of being installed on.
Can notice at last according to two embodiment, because the electromagnet spring of first embodiment or because the spring that second embodiment links to each other with indicating device, indicating mechanism can reset certainly.
The present invention is not limited to described and the embodiment that only provides as an example that illustrate.
Therefore the present invention can be applicable to anyly have accessory power supply or other needs the dynamical system switchgear of electric fault indicating mechanism.
Though when used electromagnet be the plunger type and when temporary transient action is arranged device of the present invention suitable especially, the present invention also may be used on adopting the switchgear of magnetic padlock type relay.
The present invention includes the various technical equivalents things of said mechanism and the various combinations of in the present invention's spirit scope, carrying out.
Claims (14)
- One kind in tripper the indication electric fault device, comprising:Every extremely a pair of separable contacts is electrically connected with a pair of splicing ear;The contact controlling organization comprises the handle that is connected to the actuator of contact by the mechanical transfer connecting rod;Trip gear comprises the mechanism of detecting electric fault and the tripping mechanism that when dropout automatically takes place after the fault contact is opened; AndThe mechanism of indicator cock equipment trip status comprises an indicating device, owing to the action of electromagnet, can occupy the second excitation settling position of the first non-excitation settling position or indication fault, and plug (14),It is characterized in that this device also comprises:By handle (2) in resting position with indicating device is overcome make described indicating device (5) return the mechanism (10 of primary importance, 12) effect and be fixed on and drive the balladeur train (3) that transmits between the position of said second position, thereby store dropout information, up to the shutoff operation of finishing equipment, wherein, described balladeur train comprises with described plug (14) thereby the spring (6) that cooperates the folding that described indicating device (5) is remained on viewing position when differential fault takes place to turn part (15) and balladeur train is turned back to during at resetting means non-excitation settling position.
- 2. according to the device of claim 1, it is characterized in that indicating device (5) is driven between above-mentioned two positions reliably by electromagnet (11).
- 3. according to the device of claim 1 or 2, it is characterized in that above-mentioned tripping mechanism (11) is the electromagnet that has plunger (8), indicating device (5) is driven between above-mentioned two positions reliably by plunger (8).
- 4. according to the device of claim 1 or 2, it is characterized in that fixed axis (9) rotation of indicating device (5) winding apparatus is installed, the one end is connected with the iron core (8) of electromagnet (11) in hinged way, and the other end cooperates fixedly indicating device (5) with fixed mechanism (3).
- 5. according to the device of claim 1 or 2, the fixed axis (9) that it is characterized in that indicating device (5) winding apparatus is hinged, comprise first end (5a) and second end (5b) that is connected with the iron core (8) of electromagnet (11) that cooperate with fixed mechanism (3), thus when (8) unshakable in one's determination when resetting indicating device (5) drive and rotate along the dropout direction by (8) unshakable in one's determination with respect to described iron core.
- 6. according to the device of claim 5, it is characterized in that indicating device (5) also comprises spring (12), can after device reset, make indicating device (5) return resting position.
- 7. according to device one of any in the claim 1,2 and 6, it is characterized in that indicating mechanism (M) comprises spring (6), be installed between balladeur train (3) and the housing, and when device reset, make balladeur train (3) return resting position.
- 8. according to device one of any in the claim 1,2 and 6, it is characterized in that handle (2) comprises is designed to the plug (4) that cooperates with balladeur train (3), thereby when taking place to thread off automatically behind certain one stroke to its driving, and during shutoff operation, do not drive.
- 9. according to device one of any in the claim 1,2 and 6, it is characterized in that indicating device (5) has in the side at balladeur train (3) place to be designed to the marking device (16) that cooperates with the window (13) that is provided with in the housing.
- 10. dispose switchgear according to the device of claim 1.
- 11., it is characterized in that having accessory power supply according to the equipment of claim 10.
- 12., it is characterized in that device is used to detect insulation fault according to the switchgear of claim 10 or 11.
- 13, device as claimed in claim 1, wherein, described tripper is a differential switch.
- 14, device as claimed in claim 1, wherein, described trip gear is an electromagnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9710768 | 1997-08-25 | ||
| FR9710768A FR2767602B1 (en) | 1997-08-25 | 1997-08-25 | DEVICE FOR SIGNALING AN ELECTRICAL FAULT IN A SWITCHING DEVICE SUCH AS A DIFFERENTIAL SWITCH |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1211057A CN1211057A (en) | 1999-03-17 |
| CN1167098C true CN1167098C (en) | 2004-09-15 |
Family
ID=9510574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981186696A Expired - Fee Related CN1167098C (en) | 1997-08-25 | 1998-08-24 | Device for indicating electrical fault in breaking device with as differential switch |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0901142B1 (en) |
| CN (1) | CN1167098C (en) |
| AR (1) | AR013437A1 (en) |
| CZ (1) | CZ296254B6 (en) |
| DE (1) | DE69837132T2 (en) |
| EA (1) | EA001449B1 (en) |
| EG (1) | EG21248A (en) |
| ES (1) | ES2281924T3 (en) |
| FR (1) | FR2767602B1 (en) |
| PL (1) | PL191301B1 (en) |
| TR (1) | TR199801654A3 (en) |
| ZA (1) | ZA987630B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4310232B2 (en) * | 2004-05-07 | 2009-08-05 | 三菱電機株式会社 | Circuit breaker |
| CN101188176B (en) * | 2007-11-27 | 2010-08-11 | Tcl低压电器(无锡)有限公司 | Device for correctly displaying close and open status of plastic breaker contactor |
| FR2926923B1 (en) * | 2008-01-28 | 2010-03-26 | Hager Electro Sas | SYSTEM FOR SIGNALING AN ELECTRICAL FAULT IN A CUTTING APPARATUS |
| WO2010045678A1 (en) * | 2008-10-22 | 2010-04-29 | Kaon Consulting Pty Ltd | Electrical switching apparatus |
| KR101890681B1 (en) | 2016-12-27 | 2018-09-28 | 엘에스산전 주식회사 | Position indicator of air circuit breaker |
| CN107644791B (en) * | 2017-10-31 | 2020-05-05 | 浙江天正电气股份有限公司 | Reclosing feedback mechanism and circuit breaker with same |
| CN114005710A (en) * | 2020-07-28 | 2022-02-01 | 西门子股份公司 | Electric leakage fault indication mechanism of circuit breaker and circuit breaker |
| FR3121272B1 (en) * | 2021-03-26 | 2023-03-31 | Schneider Electric Ind Sas | Electrical protection device and electrical panel comprising such a protection device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1043478B (en) * | 1956-06-26 | 1958-11-13 | Voigt & Haeffner Ag | Circuit breakers, in particular installation circuit breakers |
| IT986662B (en) * | 1973-04-13 | 1975-01-30 | Ave | DIFFERENTIAL MAGNETOTHERMAL SWITCH |
| US4002951A (en) * | 1975-09-22 | 1977-01-11 | Cutler-Hammer, Inc. | Electrical receptacle mounted ground fault interrupter with automatic plug insertion testing |
| SU612334A1 (en) * | 1976-06-01 | 1978-06-25 | Предприятие П/Я А-7672 | Arrangement for monitoring and indicating condition of electric equipment under high voltage |
| US4331996A (en) * | 1979-08-22 | 1982-05-25 | Westinghouse Electric Corp. | Time delayed undervoltage relay |
| FR2584531B1 (en) * | 1985-07-05 | 1989-01-13 | Telemecanique Electrique | CURRENT LIMITER PROVIDED WITH A DISPLAY ELEMENT |
| FR2609209B1 (en) * | 1986-12-29 | 1994-05-20 | Merlin Et Gerin | BIPOLAR DIFFERENTIAL SWITCH WITH FAULT INDICATOR |
-
1997
- 1997-08-25 FR FR9710768A patent/FR2767602B1/en not_active Expired - Fee Related
-
1998
- 1998-08-18 EG EG95698A patent/EG21248A/en active
- 1998-08-19 PL PL328113A patent/PL191301B1/en not_active IP Right Cessation
- 1998-08-24 DE DE69837132T patent/DE69837132T2/en not_active Expired - Lifetime
- 1998-08-24 EP EP98410096A patent/EP0901142B1/en not_active Expired - Lifetime
- 1998-08-24 EA EA199800652A patent/EA001449B1/en not_active IP Right Cessation
- 1998-08-24 AR ARP980104187A patent/AR013437A1/en active IP Right Grant
- 1998-08-24 ZA ZA987630A patent/ZA987630B/en unknown
- 1998-08-24 CN CNB981186696A patent/CN1167098C/en not_active Expired - Fee Related
- 1998-08-24 ES ES98410096T patent/ES2281924T3/en not_active Expired - Lifetime
- 1998-08-25 TR TR1998/01654A patent/TR199801654A3/en unknown
- 1998-08-25 CZ CZ0270698A patent/CZ296254B6/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1211057A (en) | 1999-03-17 |
| EP0901142A1 (en) | 1999-03-10 |
| PL328113A1 (en) | 1999-03-01 |
| CZ296254B6 (en) | 2006-02-15 |
| EA001449B1 (en) | 2001-04-23 |
| FR2767602B1 (en) | 2002-12-06 |
| EA199800652A1 (en) | 1999-02-25 |
| FR2767602A1 (en) | 1999-02-26 |
| TR199801654A2 (en) | 1999-09-21 |
| DE69837132D1 (en) | 2007-04-05 |
| EP0901142B1 (en) | 2007-02-21 |
| DE69837132T2 (en) | 2008-01-03 |
| AR013437A1 (en) | 2000-12-27 |
| TR199801654A3 (en) | 1999-09-21 |
| ZA987630B (en) | 1999-02-25 |
| PL191301B1 (en) | 2006-04-28 |
| CZ270698A3 (en) | 1999-03-17 |
| ES2281924T3 (en) | 2007-10-01 |
| EG21248A (en) | 2001-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Schneider Electric SA Applicant before: Schenider Electric SA |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SCHNEIDER ELECTRIC SA TO: SCHNEIDER ELECTRIC INDUSTRIES SAS |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040915 Termination date: 20160824 |