CN1791348A - Cleaning appliance, in particular vacuum cleaner - Google Patents
Cleaning appliance, in particular vacuum cleaner Download PDFInfo
- Publication number
- CN1791348A CN1791348A CNA2004800133173A CN200480013317A CN1791348A CN 1791348 A CN1791348 A CN 1791348A CN A2004800133173 A CNA2004800133173 A CN A2004800133173A CN 200480013317 A CN200480013317 A CN 200480013317A CN 1791348 A CN1791348 A CN 1791348A
- Authority
- CN
- China
- Prior art keywords
- alembic
- filter
- energy
- control device
- adjusting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/12—Dry filters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/20—Means for cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/448—Auxiliary equipment or operation thereof controlling filtration by temperature measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/55—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning appliances, e.g. suction cleaners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/90—Cleaning of purification apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Secondary Cells (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Electric Vacuum Cleaner (AREA)
- Electric Suction Cleaners (AREA)
Abstract
The invention relates to a cleaning appliance, in particular vacuum cleaner. Said appliance comprises a filter (10) and a heating device (12), by means of which the filter (10) can be heated to carry out a pyrolytic cleaning process. During and/or after said pyrolytic cleaning process (10), at least neighbouring areas (14) of the filter (10) are cooled by a cooling air stream (16) and the heating device (12) is supplied with energy from a primary energy source (18). To prevent the risk of overheating and a potential fire if the primary energy source (18) fails, the appliance is equipped with a secondary energy source (20), which can be used to generate the cooling air stream (16), at least if the primary energy source (18) fails.
Description
The present invention relates to a kind of alembic as described in the preamble by claim 1.
Alembic for example includes air cleaning utensil, air-conditioning equipment and especially dust catcher in this article.
Common dust catcher carries out work by following principle: suction has the air of impurity particle, is bloated by dust catcher with its filtration and with the form that has purified in dust catcher.Because in the air of suction, may contain different impurity particles foreign matter in other words, therefore special requirement has been proposed for the filter within the dust catcher.Usually the main flow direction that makes various filter relate to the air that has impurity particle is arranged in tandem for this reason, and wherein these filters are finished different tasks.For example known thicker impurity particle is collected in the filter bag, and makes the air that flows out in the filter bag, equally also can also filter out thereby the fine impurities particle that stays was blown out to atmosphere at air then by a kind of filter fiber net of pore.Function for each filter is distributed, and must correspondingly select the pore opening of each filter respectively.
For very thin granule foreign is filtered out, in dust catcher, use so-called HEPA (efficiency particulate air (High Efficiency Particulate Air))-filter in air multiplely.This filter majority is made by a kind of glassfiber composite, and this compound is arranged in a kind of carrier material, for example paper.Can realize making very tiny unhealthful particle, especially cause that irritated material separates in the air that will bloat with this HEPA-filter.What belong to these materials for example has pollen, mushroom and acarid their metabolism product or a part in other words.
Even utilize this HEPA-filter to obtain good result, yet its shortcoming is: the complex structure of filter also must be changed because it pollutes after certain running time.
The equally also known filter of making by ceramic material of using.A kind of embodiment with dust catcher of a kind of ceramic filter device discloses in WO 01/41619A1.
Relevant ceramic filter device such device that suggestion is used a kind of pyrolytic reaction ground, just can be purified by heating in a undocumented patent application.For example the ceramic foam of being made by aluminium dioxide just is suitable for this.
The notion of ceramic filter device in this article refers to every kind of filter of being located in the alembic for this reason, will being flow through by the air that will purify.This ceramic filter device for example can be constituted a kind of filter of preposition, main or end connectedly with dust catcher.Especially also can make the ceramic filter device constitute a dust storage chamber in whole or in part at this, this dust storage chamber replaces a common filter bag.A kind of in addition can be additionally or selectively replace a kind of traditional HEPA-filter according to the set ceramic filter device of the present invention.
Stipulated in the alembic that belongs to this kind type class: pyrolytic reaction ground purifies at least one real ceramic filter within alembic.For this purpose, the heater of being located in the alembic just is heated to ceramic filter 400 ℃ or higher.Certainly for example must not surpass 90 ℃ a greatest limit temperature that is adjacent on ABS (acrylonitrile-butadiene-styrene) part that filter is provided with, then must not be on PP (polypropylene) part above 110 ℃.Therefore the housing department section that is adjacent to filter is also cooled off by a kind of cooling air stream when purifying by pyrolytic reaction after this, this cooling air stream for example can produce by the main CD-ROM drive motor of alembic, and this CD-ROM drive motor equally also resembles and comes energize by primary energy the heater.Alembic is finished all by the primary energy energize until cooling procedure, and this energy is not limited thereto, and especially can constitute by public electrical network.If primary energy interrupts,, owing to lack cooling and may cause in described utensil overheatedly, cause under the worst case and catch fire so for example because the user pulls out attaching plug in advance.
Task of the present invention is to improve to belong to such alembic, thus when the elementary energy when filter purifies by pyrolysis or (in short-term) when interruption takes place afterwards, also just can avoid reliably taking place overheatedly catching fire in other words.
This task solves by the feature of claim 1.
Preferred implementation of the present invention and improvement project are seen dependent claims.
So be based upon on such background technology according to alembic of the present invention: be provided with a secondary energy, when primary energy interrupts, can produce cold wind stream at least by means of this secondary energy.Just can under any circumstance produce for avoiding overheated or the necessary cooling air stream that catches fire, even also be like this when primary energy interrupts by this solution.So-called primary energy interrupts in this article referring to every kind of such state: wherein said essential cold air stream just can not produce under the situation of the secondary energy not having, although this cold air stream is essential.
Can stipulate that in some embodiment this secondary energy comprises a fuel cell according to alembic of the present invention.Therefore especially consider with so-called " micro fuel cell " in this article.Such micro fuel cell can for example reach power and be output as 50W or more as the occupation of land demand of traditional battery or battery and weight the time.
Additionally or selectively can stipulate: the described secondary energy includes an accumulator, the especially accumulator by the primary energy charging.Described accumulator for example can constitute by traditional disposable battery under the simplest situation.
Yet stipulated in the particularly preferred embodiment according to alembic of the present invention: described accumulator is made of a kind of battery, and this battery is charged by a charging device of being supplied with by primary energy.All commercial general battery types all consider to be used as battery in this article, especially the lithium-ion battery.Can advantageously use a kind of quick charger of electricity as charging device in many situations.
According to alembic of the present invention preferred embodiment in also stipulated: when primary energy interrupts, produce cold wind stream at least by at least one ventilator.Described at least one ventilator preferably is meant a kind of ventilator that is arranged with CD-ROM drive motor branch alembic.
A control device and/or adjusting device, especially a kind of control device and/or adjusting device of controlling for ventilator preferably are set in addition.Especially a microprocessor can be included at this this control device and/or adjusting device, and when some embodiment, also a microprocessor can be provided with at least in order to control the normal operation of regulating alembic in other words.
Preferably make control device and/or adjusting device control charging device in the case.This solution especially takes in when described charging device is a kind of quick charge device of electricity.
In a kind of advantageous modification, make current temperature information flow to control device and/or adjusting device according to alembic of the present invention.This current temperature information preferably is meant in the temperature that is adjacent in the position of filter, because just reach as first critical value when the elementary energy interrupts in the temperature in these positions.
Preferably stipulate simultaneously: described current temperature information obtains by at least one temperature sensor.For example a kind of Pt 100 can consider to be used as temperature sensor.
Of the present invention a kind of equally also be favourable improvement project regulation: with the information conveyance of the current state of the relevant secondary energy to control device and/or adjusting device.For example an output voltage that constitutes the battery of the secondary energy can be picked out and be flowed to control device and/or adjusting device for this purpose.The charging process of battery is optimized.
Equally also think advantageously, give control device and/or adjusting device the information conveyance of relevant primary energy current state.This especially can make the interruption to primary energy of control device and/or adjusting device direct detection, and can take suitable measure immediately, especially activates ventilator with described control device and/or adjusting device.
Can stipulate with having no truck with, make control device and/or adjusting device control heater.For example this control device and/or adjusting device can control a kind of drive circuit form, attach troops to a unit in the control circuit of heater, for example so that the output signal adjustment according to one or more temperature sensors is adapted to pass through the temperature that pyrolysis purifies when operate as normal.
Stipulate in a kind of particularly preferred improvement project of the present invention: if the secondary energy can provide the energy that enough is used to produce cold wind stream, so described control device and/or adjusting device then activate heater and just are used for implementing by pyrolysis the purification of filter.Whether the secondary energy can provide the energy that enough is used to produce cold wind stream, and this for example can determine by monitoring a charged state that constitutes the battery of the secondary energy.
For all of the embodiments of the present invention, preferably a kind of ceramic filter of described filter.Utilize current available ceramic filter just can realize starting described advantage.But the present invention also can use the filter of being made by other material in principle, if these filters purify by pyrolysis.
Of the present invention a kind of equally also be preferred improvement project regulation: the power of the secondary energy is size at least like this, describedly when carrying out purification process by pyrolysis the heat energy of maximum storage can be exported in the surrounding environment by cold wind stream in filter so that make.The size that depends on employed filter needed cool time is quality and specific heat c in other words.Heat calculates by Q=c*m* Δ t.For example can suppose that for its variations in temperature Δ of a kind of ceramic filter t be 400 ℃, quality is about 0.75kg.Specific heat with pottery is between 0.8 to 1.2, and for example just drawing, heat Q is 360kJ.When desirable cool time is the about 60min and the 1Wh=3.6kJ that converts, and drawing electrical power so is 100Wh/2h=50W.The batteries to store energy device that this for example just requires about 24 models is Sub C (can 1.2 and 2.4Ah between provide) (=24*1800mAh*1.2V).
Basic thought of the present invention is: even also can keep cooling off a unaccommodated moment current interruptions.Can give up secondary safety device (for example warning lamp or sender unit, and these devices otherwise are the thermal purification processes that must be used for ceramic filter in many cases by this mode.User according to alembic of the present invention needn't note special precautionary measures, although must produce high temperature in alembic when by pyrolysis filter being cleaned.The accumulator of the secondary energy can charge in every kind of normal purification process in particularly advantageous mode, as long as its charged state requires like this.
A kind of preferred implementation of the present invention then is illustrated for example by accompanying drawing.Accompanying drawing is depicted as:
Fig. 1 a: block diagram of a vital for the present invention section of alembic.
The important part for understanding the present invention of in Fig. 1, just having represented a kind of alembic of dust catcher form.Dust catcher has a ceramic filter 10, and it is arranged in 32 li of filter housings.Filter housing 32 can integrally constitute with remaining (unshowned) Body case of cleaner.Be adjacent to ceramic filter 10 and be provided with one with the heater 12 shown in a kind of form of helix filament.Filter housing 32 has an air inlet 34 and an air outlet 36.For real purification operation, can be provided with other air inlet of not expressing and air outlet in case of necessity.Be provided with a ventilator 24 at air inlet 34 positions, can on the direction pointed, produce a cold air stream 16 by arrow with this ventilator.Also be provided with a temperature sensor 28 32 li of filter housings, wherein it for example can be that a kind of model is the temperature sensor of Pt 100.A primary energy 18 is made of public power supply network in the illustrated case, therefore can obtain electric energy by cable in common mode according to alembic of the present invention.Also be provided with a control circuit 30 that is used for heater 12 in addition.For control circuit 30 for example can be a kind of drive circuit or similar circuit.Be provided with a kind of secondary energy of battery 20 forms, it can be charged by a quick charger 23.The operation of alembic is regulated in control device and/or adjusting device 26 controls in other words, wherein only express described for understanding the present invention important, arrowed holding wire.
When normal operation, electrical network 18 power supplies of shown alembic by forming primary energy.For example after the working hours that has reached specified quantity or when determining that according to the pressure loss must filter rinsed 10 time, control device and/or adjusting device 26 just activate heaters 12 by control circuit 30.These heater 12 hot filtration apparatuses 10 are used for purifying by pyrolysis for example to 400 ℃ or higher.In order to make the temperature that is no more than 90 ℃ or 110 ℃ adjacent to filter 10 ABS-that be provided with, filter housing 32 and the heating of PP-part, during filter 10 being purified and make of endangered position and filter 10 between the guiding of a cold air stream afterwards at filter housing 32 by pyrolysis.This cold air stream also can produce by other device as ventilator 24 when alembic normally moves under certain condition.Control device and/or adjusting device 26 trigger purify for filter 10 by pyrolysis before, this device is just checked the charged state of accumulator 20 in shown embodiment, and this accumulator charges by the quick charger of equally also being controlled by control device and/or adjusting device 26 22 when alembic normally moves.If the current charged state of accumulator 20 has been guaranteed under any circumstance to produce essential cold air stream 16 when primary source 18 interrupts, control device and/or adjusting device 26 just trigger the purification process of filter 10 as additional safety measure so.
Below can set out thus: the user of alembic separated alembic and electrical network 18 in moment, had been heated to 400 ℃ of maximum temperatures or higher by heater 12 at this utensil middle filtrator 10.Because the supply line that control device and/or adjusting device 26 also are provided with being used for being connected electrical network 18 as shown in the figure is connected, so control device and/or adjusting device 26 just detect immediately: primary energy 18 has interrupted.As the reaction to this, described control device and/or adjusting device 26 just activate ventilator 24, so this ventilator flows 16 with regard to the cold air shown in producing.In the illustrated case, control device and/or adjusting device 26 are just controlled ventilator 24 according to the temperature information that is provided by temperature sensor 28, thereby form the regulating loop of a sealing.In case when dropping to not dangerous value by temperature sensor 28 measured temperature, control device and/or adjusting device 26 just make ventilator 24 remove and activate, because danger overheated or that catch fire is carved have no longer at this moment existed.
In the above description, disclosed feature of the present invention can be vital for enforcement of the present invention arbitrarily also individually in combination in accompanying drawing and claim.
Reference numerals list
10 filters
12 heaters
14 adjacent regions
16 cold airs stream
18 primary energies
20 level energy
22 charging devices
24 ventilator
26 control device and/or adjusting device
28 temperature sensors
30 control circuits
32 filter housings
34 air inlets
36 air outlets
Claims (15)
1. alembic, especially dust catcher, this alembic has a filter (10) and a heater (12), utilize this heater to heat to filter (10), be used for implementing to purify by pyrolysis, wherein during filter (10) being purified by pyrolysis and/or the adjacent regions (14) that makes filter (10) afterwards at least flow (16) cooling by a cold air, and wherein provide energy to heater (12) by a primary energy (18), it is characterized in that, be provided with a secondary energy (20), when primary energy (20) interrupts, can produce cold air stream (16) at least by means of this secondary energy.
2. by the described alembic of claim 1, it is characterized in that the described secondary energy (20) is a kind of fuel cell.
3. by claim 1 or 2 described alembics, it is characterized in that the described secondary energy (20) comprises an accumulator (20), especially one by the accumulator of primary energy (18) to its charging.
4. by the described alembic of claim 2, it is characterized in that accumulator (20) constitutes by a battery, this battery is by charging device (a 22) charging by primary energy (18) power supply.
5. by the described alembic of one of aforesaid right requirement, it is characterized in that, when primary energy (18) interrupts, produce cold air stream (16) at least by at least one ventilator (24).
6. by the described alembic of one of aforesaid right requirement, it is characterized in that, be provided with a control device and/or adjusting device (26), especially a control device and/or the adjusting device (26) that ventilator (24) is controlled.
7. by described alembic one of in the claim 4 and 6, it is characterized in that described control device and/or adjusting device (26) control charging device (22).
8. by claim 6 or 7 described alembics, it is characterized in that, current temperature information is flowed to described control device and/or adjusting device (26).
9. by the described alembic of claim 8, it is characterized in that, obtain described current temperature information by at least one temperature sensor (28).
10. by described alembic one of in the claim 6 to 9, it is characterized in that, with the information conveyance of the current state of the relevant secondary energy (20) to described control device and/or adjusting device (26).
11. by described alembic one of in the claim 6 to 10, it is characterized in that, with the information conveyance of the current state of relevant primary energy (18) to described control device and/or adjusting device (26).
12., it is characterized in that control device and/or adjusting device (26) are controlled described heater (12) by described alembic one of in the claim 6 to 11.
13. by the described alembic of claim 12, it is characterized in that, the secondary energy (20) has only when can provide the energy that enough is used to produce cold air stream (16), described control device and/or adjusting device (26) just activate heater (12), are used for by pyrolysis filter (10) being purified.
14., it is characterized in that described filter (10) is a kind of ceramic filter by the described alembic of one of aforesaid right requirement.
15. by the described alembic of one of aforesaid right requirement, it is characterized in that the power of the secondary energy (20) is big at least like this: make described in filter (10) lining when the purification process by pyrolysis the maximum heat energy of supplying with can flow (16) by cold air and output in the surrounding environment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10321976A DE10321976A1 (en) | 2003-05-15 | 2003-05-15 | Cleaning device, in particular vacuum cleaner |
| DE10321976.5 | 2003-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1791348A true CN1791348A (en) | 2006-06-21 |
| CN100361617C CN100361617C (en) | 2008-01-16 |
Family
ID=33394640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800133173A Expired - Fee Related CN100361617C (en) | 2003-05-15 | 2004-05-17 | Cleaning appliance, in particular vacuum cleaner |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080209670A1 (en) |
| EP (1) | EP1626646A1 (en) |
| CN (1) | CN100361617C (en) |
| DE (1) | DE10321976A1 (en) |
| WO (1) | WO2004100750A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012147534A1 (en) * | 2011-04-25 | 2012-11-01 | 日本碍子株式会社 | Method for washing ceramic filter |
| DE102016012580A1 (en) * | 2016-10-20 | 2018-04-26 | Hans Kilian Fremmer | Dirt sensor with fuel drive |
| DE102016015625A1 (en) * | 2016-12-29 | 2018-07-05 | Hans Kilian Fremmer | Dirt sensor with fuel drive 2 |
| US11695312B2 (en) | 2017-09-01 | 2023-07-04 | Milwaukee Electric Tool Corporation | Electrostatic discharge dissipation structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE840411L (en) * | 1984-03-22 | 1985-09-22 | Dan O Sullivan | An attachment for a vacuum cleaner comprising a container¹and a filter |
| US20020069756A1 (en) * | 1995-10-26 | 2002-06-13 | Mako Frederick M. | Method and apparatus for regeneration of particulate filter using microwave energy |
| US6269518B1 (en) * | 1999-12-08 | 2001-08-07 | Shell Electric Mfg. (Holdings) Co. Ltd. | Bagless vacuum cleaner |
| DE10156696A1 (en) * | 2001-11-17 | 2003-06-05 | Wirth Gabriele | cleaner |
-
2003
- 2003-05-15 DE DE10321976A patent/DE10321976A1/en not_active Withdrawn
-
2004
- 2004-05-17 WO PCT/EP2004/005304 patent/WO2004100750A1/en active Application Filing
- 2004-05-17 CN CNB2004800133173A patent/CN100361617C/en not_active Expired - Fee Related
- 2004-05-17 EP EP04733347A patent/EP1626646A1/en not_active Withdrawn
- 2004-05-17 US US10/556,698 patent/US20080209670A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20080209670A1 (en) | 2008-09-04 |
| EP1626646A1 (en) | 2006-02-22 |
| DE10321976A1 (en) | 2004-12-02 |
| CN100361617C (en) | 2008-01-16 |
| WO2004100750A1 (en) | 2004-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 Termination date: 20100517 |