CN100526715C - Double burner for gas cookers, of the type provided with multiple concentric flame crowns - Google Patents
Double burner for gas cookers, of the type provided with multiple concentric flame crowns Download PDFInfo
- Publication number
- CN100526715C CN100526715C CNB2005800045069A CN200580004506A CN100526715C CN 100526715 C CN100526715 C CN 100526715C CN B2005800045069 A CNB2005800045069 A CN B2005800045069A CN 200580004506 A CN200580004506 A CN 200580004506A CN 100526715 C CN100526715 C CN 100526715C
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- CN
- China
- Prior art keywords
- flame
- gas
- burner
- main body
- dish
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
- F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings
Abstract
The present invention refers to a double burner for gas cookers, of the type provided with multiple concentric flame crowns (FE, FC), which comprises two gas inlet (3, 4) that reach the centre of the body (1) at a slightly different height, so that communication can be provided between the gas inlets, if necessary, by simply drilling a hole (15) with vertical axis from the upper inlet (3) to the lower inlet (4).
Description
Technical field
Present patent application relates to a kind of double burner with a plurality of concentric flame crowns that is used for gas-cooker.
Background technology
Word " double burner " is used to represent a kind of burner with two different fuel gas inlets, and these two different fuel gas inlets have the joint of supplying with combustion gas respectively to two or more concentric flame crowns.Since by the end extend in the above-mentioned inlet two respectively independently passage supply with combustion gas, so flame crown can be selectively opened and be closed.
Although have a plurality of concentric flame crowns, the feature of traditional burner remains and only comprises a fuel gas inlet with joint, and wherein this joint will be used to carry the air fuel gas mixture to supply to all passages of burner head.
Because above-mentioned factor, the concentric flame crowns of conventional burners is operated simultaneously, this means that they open or close simultaneously.On the contrary, if adopt double comb portion, then the user can decide in its sole discretion and open all flame crown or allow some bizet close.
Summary of the invention
The objective of the invention is, design a kind of double burner that is used for gas-cooker, it can become standard burner by the transformation of cheap and simple, just, this double burner is a kind ofly to have the burner that is installed in a near joint the inlet, and this burner can not lose the possibility of fuel gas supply to all flame crown of double burner.
For existing models of double burners is transformed, must be at the main body outer setting tube connector of burner, be communicated with thereby between the oral area of two fuel gas inlets, set up, import to a combustion gas in the inlet like this and just can freely flow to another inlet through this tube connector, therefore, it does not need to be connected to feeder and to be equipped with joint.
The objective of the invention is, design a kind of double burner that is used for gas-cooker, it can be transformed into standard burner and not introduce external component, for example is positioned at the tube connector of the main body outside of burner, and only needs the simple main body inner wall of separating two fuel gas inlets that moves to get final product.
Another object of the present invention is, designs a kind of double burner that is used for gas-cooker, and it can be changed as mentioned above, it is characterized by, and can replace some parts according to the different market demands, thereby have multifunctionality.
What deserves to be mentioned is, use pan to cook usually in western countries, and use circular bottom pot usually in Asian countries.
In the later case, have good hot property in order to ensure burner, flame must be inclined upwardly, and in first kind of situation, flame then should have fabulous horizontal direction.
Consider above-mentioned factor, double burner of the present invention has been designed to have two kinds of interchangeable covers, and wherein first cover is applicable to along continuous straight runs eruption flame, and second cover is applicable to and vertically erupts flame.
Another object of the present invention is, designs a kind of double burner that is used for gas-cooker, it is characterized by the multifunctionality of above-mentioned transformation and use, and has small size.
Burner of the present invention comprises basin shape main body traditionally, this basin shape main body comprises and is used to limit two partition walls different, unconnected passage, one of them passage is used for fuel gas supply is arrived the external flame bizet, and another passage is used for fuel gas supply to the flame of centre bizet.
The bottom traditional characteristic of main body comprises two different, unconnected, as to have trunnion axis fuel gas inlets, and this fuel gas inlet is used for the combustion gas selectivity is supplied to above-mentioned passage.
According to burner of the present invention, being characterized as of two fuel gas inlets, they all reach the center of main body at different slightly height.Because above-mentioned reason if desired, can just can be set up connection by simply get out the hole with vertical axis from the upper inlet to the lower inlet between inlet.
According to a preferred embodiment of the invention, the axle of these two inlets is positioned on the vertical plane of quadrature.
Though U.S. Patent No. 6322460B1 discloses a kind of burner with above-mentioned feature, but it lacks the compactedness of height aspect, and only comprise two overlapping bizets that are positioned on two varying levels, thereby the flame of bizet separates with respect to the flame of upper crown down.
Sizable height dimension of described burner depends on venturi (venture) pipe that is combined with corresponding three nozzles with vertical axis.
On the contrary, burner employing according to the present invention has a pair of relative venturi chamber of sloping shaft.
Described sloping shaft makes the height dimension can reduce burner, and does not reduce the length of the son field of described chamber, and described length is significant for the quality of burner performance.
In addition, because described sloping shaft, the height dimension of burner is controlled, thereby can realize having three bizet burners of the concentric flame of par.
A kind of three bizet burners with the concentric flame that is in same level have been described in U.S. Patent Publication No. No.2001/0010897A1, yet the height of this burner and length dimension are all quite big, this is because they adopt first air blast, it then is venturi chamber with vertical axis, also adopted second air blast, then be venturi chamber, thereby supply with the external flame of two bizets with trunnion axis.
As mentioned above, burner according to the present invention comprises two fuel gas inlets.
Vertical channel comes out from the upper inlet tap, it has first gas nozzle that is designed to combustion gas is imported the feed path of flame of centre bizet, and a pair of dichotomous data feedback channel comes out from the lower inlet tap, and it has and is designed to combustion gas is imported to nozzle in the feed path of external flame bizet.
Venturi (Venturi) chamber is arranged on the downstream of each gas nozzle, to help combustion gas and primary air are mixed.
Burner of the present invention has three venturi chamber, and one of them central lumen is positioned at first nozzle top and has vertical axis, and other two chambers lay respectively at other two said nozzle tops, and is arranged on relative position and has sloping shaft.
These chambers are positioned at the inside of burner head, and just this circular discs is characterised in that and comprises concentric a series of a plurality of toothed crowns, and the cover position with the cavity of sealing toothed crowns, can learn that flame sprays thereon from each cavity.
Another of burner of the present invention is characterised in that it comprises the head that is formed by lower wall and last dish, and wherein lower wall mates admirably with last dish and is in the same place, and has a pair of opposite venturi chamber of sloping shaft with qualification.
The 3rd venturi chamber is positioned at the center position of dish, wherein goes up dish and has concentric a series of a plurality of toothed crowns.
Description of drawings
Understand for clear, continue to describe double burner of the present invention with reference to the accompanying drawing that is comprised, accompanying drawing only is used for clear the elaboration and does not have restricted purpose, wherein:
Fig. 1 is the cross-sectional view of burner of the present invention, and wherein the straight vertical diametric plane is by the axle of first fuel gas inlet;
Fig. 2 is the cross-sectional view of burner of the present invention, and wherein the straight vertical diametric plane is by second fuel gas inlet, and the position of second fuel gas inlet is higher than first inlet in this case;
Fig. 3 is the cross-sectional view identical with Fig. 1, and difference is that it relates to the translative mode of burner, and as shown in the figure, it sets up connection by the hole with vertical axis between two fuel gas inlets;
Fig. 4 is the cross-sectional view identical with Fig. 2, and difference is that it relates to the translative mode of burner, and as shown in the figure, it sets up connection by the hole with vertical axis between two fuel gas inlets;
Fig. 5 is the vertical view of the main body of burner of the present invention;
Fig. 6 is the vertical view of head of not being with the burner of cover;
Fig. 7 is the axonometric projection graph of burner of the present invention, is passed through two orthogonal vertical planes of the axle of two fuel gas inlets respectively and cuts;
Fig. 8 is the cross-sectional view identical with Fig. 1, and difference is that the burner that it relates to has cover portion, to help the flame that produces vertical tilt.
The specific embodiment
See figures.1.and.2, double burner of the present invention generally includes circular body (1), this circular body comprises and is used to limit two partition walls different, unconnected passage, wherein passage (E) is used for the bizet of fuel gas supply to external flame (FE), and passage (C) is used for fuel gas supply to flame of centre (FC).
The feature of the bottom of main body (1) be usually to comprise be used for the combustion gas selectivity supply to respectively two of passage (C and E) different, unconnected fuel gas inlet (3 and 4).
Two fuel gas inlets (3 and 4) reach the center of main body (1) at different slightly height places; More accurate theory, upper inlet (3) just in time the end terminate in main body (1) in the heart, and lower inlet (4) is outside this center.
Vertical channel (3a) comes out from upper inlet (3) tap, it has first gas nozzle (5), just with the nozzle of fuel gas supply to the central passage (C) of backbone flame crown (FC), and a pair of dichotomous data feedback channel (4a) comes out from lower inlet (4) tap, and it has the nozzle (6) that is used for fuel gas supply is arrived the passage (E) of supplying with external flame (FE) bizet.
Venturi chamber (5a) with vertical axis is arranged on the downstream of nozzle (5), and a pair of venturi chamber (6a) with sloping shaft of preferred angled 40 to 60 degree is arranged on this downstream to nozzle (6).
In addition, burner of the present invention also comprises by mating the head (T) that fabulous lower wall (7) and last dish (8) form.
More accurate theory, lower wall (7) has truncated conical shape, and has stepwise outer rim (7a), and this stepwise outer rim goes up dish (8) with opposing and plays supporting and centrally aligned effect, wherein goes up dish (8) and has stepwise periphery (8a).
Last dish (8) carries out second centrally aligned and supporting by plane face flange (9a), and wherein this plane face flange is positioned at the upper end of partition wall (9), and partition wall (9) stretches out from the center of main body (1), and divider passages (C and E).
Nozzle (5) is arranged in the inner center of partition wall (9), and nozzle (6) is arranged in the outer opposite position with respect to wall (9).
Two dishes (7 and 8) have half conduit (7b and 8b), and this half conduit forms above-mentioned venturi chamber (6a).V-shape deflector wall (10) is positioned at chamber (6a) downstream on the lower wall (7), to help to shunting from the air-gas-flow of chamber (6a), it is sent to semicircle path (11) inside, and supply with the concentric crowns of external flame (FE), as shown in Figure 6, it is clearly visible wherein to be positioned at three toothed crowns (12) of dish (8) top.
Path (11) forms the concentric crowns of external flame (FE) by circular cowling (13) sealing on the outer rim of this circular cowling.
Venturi chamber (5) is positioned at the inside of dish (8), and stop a circular space, wherein this circular space forms the concentric crowns of flame of centre (FC) by the toothed crowns (12) and circular enclosure (14) lateral seal that have than minor diameter on the outer rim of this circular enclosure (14).
As shown in Figure 3, double burner of the present invention can convert the ordinary burner with three concentric flame crowns to, by in center, on main body, get out hole with vertical axis (15) from following fuel gas inlet (4) to coaxial vertical channel (3a) with nozzle (5).
Lower inlet (4) makes to the simple connection between the feeder can supply with combustion gas to three nozzle-that is to say, supply to central nozzle (5) and side direction nozzle (6) simultaneously, can obviously find out, in this case, last fuel gas inlet (3) must sealing, with prevent to import to fuel gas return-flow in the lower inlet (4) to upper inlet (3) thus in leave the main body of burner.
For fear of using external component, for example be used for the seal bootr of inlet (3), can suitably reduce the length of inlet (3), as shown in Figure 4.
Because die casting forms main body (1), so by moving the pin that draws as " core " of upper inlet (3) simply backward, thereby can be easy to, this length of realization of economy reduces.
As shown in Figure 8, in order to allow flame become the vertical tilt direction, last dish (8) and cover (13 and 14) must substitute with another dish (80) with suitable shape and two covers (130 and 140), and needn't carry out modification to the structure of main body (1) and lower wall (7).
At last, must be noted that setting has sloping shaft but not two venturi chamber (6a) of vertical axis can reduce the height of burner.
Claims (7)
1. double burner that is used for gas-cooker, has a plurality of concentric flame crowns comprises:
Head (T) with a plurality of concentric flame crowns;
Circular body (1), described main body comprises the partition wall (9) that is used to limit two different, unconnected first passages (C) and second channel (E), wherein said second channel (E) is used for fuel gas supply is arrived external flame bizet (FE), and described first passage (C) is used for fuel gas supply to flame of centre bizet (FC);
Combustion gas upper inlets two isolation, unconnected (3) and lower inlet (4), it is positioned at the bottom of described main body (1), be used for the combustion gas selectivity is supplied to above-mentioned first and second passages (C, E), described upper inlet (3) just in time end terminates in the center of described main body (1), and the running mouth (4) surpasses this center;
This burner is characterised in that, vertical channel (3a) comes out from described upper inlet (3) tap, it has first gas nozzle (5), this first gas nozzle is designed to combustion gas is imported the described first passage (C) of supplying with described flame of centre bizet (FC), and a pair of dichotomous data feedback channel (4a) comes out from the running mouth tap, and it has second gas nozzle (6) that is designed in the described second channel (E) of the combustion gas importing described external flame bizet of supply (FE); And the venturi chamber (5a) with vertical axis is arranged on the downstream of described first gas nozzle (5), and a pair of venturi chamber (6a) with sloping shaft is arranged on the downstream of a pair of described second gas nozzle (6).
2. double burner according to claim 1, it is characterized in that, described head (T) is by coupling fabulous lower wall (7) and last dish (8,80) constitute, described lower wall (7) has truncated conical shape, and has a stepwise outer rim (7a), this stepwise outer rim coils (8 with described the going up of opposing, 80) play supporting and centrally aligned effect, the wherein said dish (8 of going up, 80) has stepwise periphery (8a), and the described dish (8 of going up, 80) carry out second centrally aligned and supporting by plane face flange (9a), wherein this plane face flange is positioned at the top of described partition wall (9), and described partition wall (9) stretches out from the center of described main body (1), and separates the described first and second passage (C, E).
3. double burner according to claim 2 is characterized in that, described lower wall (7) and the described dish (8,80) of going up have half conduit (7b, 8b) respectively, and this half conduit forms above-mentioned venturi chamber (6a) with sloping shaft.
4. according to claim 2 or 3 described double burners, it is characterized in that, it comprises V-arrangement deflector wall (10), this V-arrangement deflector wall is positioned on the described lower wall (7) in above-mentioned venturi chamber (6a) downstream with sloping shaft, to help to shunting, and the air-gas-flow of shunting is sent to semicircle path (11) inside of supplying with described external flame bizet (FE) from above-mentioned air-gas-flow with venturi chamber (6a) of sloping shaft.
5. double burner according to claim 4 is characterized in that, described head (T) comprises circular cowling (13) and circular enclosure (14), to be used for sealing described path (11) and described venturi chamber (5a) with vertical axis respectively; The described dish of going up has toothed crowns (12), and this toothed crowns (12) is shaped together with described circular cowling (13) and circular enclosure (14) so that flame becomes horizontal direction.
6. double burner according to claim 4 is characterized in that, described head (T) comprises circular cowling (130) and circular enclosure (140), to be used for sealing described path (11) and described venturi chamber (5a) with vertical axis respectively; The described dish of going up has three toothed crowns (12), and these three toothed crowns (12) are shaped together with described circular cowling (130) and circular enclosure (140) so that flame becomes the vertical tilt direction.
7. according to each described double burner in claim 1～3 and the claim 5～6, it is characterized in that, be included in the hole (15) that has vertical axis on the described main body (1), this hole is positioned at the center of described main body, it is from combustion gas the running mouth (4), move up and end in the coaxial described vertical channel (3a) that has described first gas nozzle (5), and described upper inlet (3) blocks because of the existence of described hole (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMC2004A000024 | 2004-02-13 | ||
| IT000024A ITMC20040024A1 (en) | 2004-02-13 | 2004-02-13 | DOUBLE BURNER FOR GAS COOKERS, OF THE TYPE WITH MULTIPLE CONCENTRIC CROWNS OF FLAMES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1926382A CN1926382A (en) | 2007-03-07 |
| CN100526715C true CN100526715C (en) | 2009-08-12 |
Family
ID=34856901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800045069A Active CN100526715C (en) | 2004-02-13 | 2005-01-17 | Double burner for gas cookers, of the type provided with multiple concentric flame crowns |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1714076B1 (en) |
| KR (1) | KR20060126558A (en) |
| CN (1) | CN100526715C (en) |
| AU (1) | AU2005212730B2 (en) |
| BR (1) | BRPI0507358B1 (en) |
| CA (1) | CA2555326A1 (en) |
| EC (1) | ECSP066769A (en) |
| EG (1) | EG24857A (en) |
| IT (1) | ITMC20040024A1 (en) |
| RU (1) | RU2350842C2 (en) |
| UA (1) | UA87831C2 (en) |
| WO (1) | WO2005078342A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMC20050036A1 (en) * | 2005-04-29 | 2006-10-30 | So M I Press Societa Metalli Iniettati Spa | DOUBLE BURNER FOR GAS COOKERS, WITH MULTIPLE CONCENTRIC FLAME CHAINS, HIGH POWER. |
| FR2889293B1 (en) * | 2005-07-29 | 2009-12-18 | Burner Systems Int Bsi | MULTI-CROWN GAS BURNER WITH CONCENTRIC FLAME |
| ITTO20050685A1 (en) | 2005-09-30 | 2007-04-01 | Indesit Co Spa | COOKTOP WITH GAS BURNER INCLUDING A SEMIPERMEABLE ELEMENT |
| ITMI20060535A1 (en) * | 2006-03-23 | 2007-09-24 | Enzo Inzaghi | MODULAR BURNER FOR COOKING PLATE |
| ITTO20070133A1 (en) | 2007-02-26 | 2008-08-27 | Indesit Co Spa | GAS BURNER SYSTEM FOR FOOD COOKING APPLIANCES |
| ITRN20070013A1 (en) | 2007-02-27 | 2008-08-28 | Indesit Company Spa | COOKTOP. |
| ITRN20070012A1 (en) | 2007-02-27 | 2008-08-28 | Indesit Company Spa | COOKTOP |
| ITMC20070130A1 (en) * | 2007-06-28 | 2008-12-29 | Somi Press Soc Metalli Iniettati Spa | DOUBLE BURNER, OF A PERFECT TYPE, FOR GAS COOKERS WITH MORE FLAME CROWNS. |
| ES2434092T3 (en) | 2007-10-23 | 2013-12-13 | Electrolux Home Products Corporation N.V. | Gas burner |
| ES2504516T3 (en) | 2007-12-18 | 2014-10-08 | Electrolux Home Products Corporation N.V. | Gas burner with improved main air duct |
| SI2359061T1 (en) * | 2008-12-12 | 2018-12-31 | Sabaf S.P.A. | Gas burner for domestic cookers |
| ES2528199T3 (en) * | 2009-03-18 | 2015-02-05 | Electrolux Home Products Corporation N.V. | Enhanced gas burner |
| CN103062767A (en) * | 2013-01-29 | 2013-04-24 | 浙江安德电器有限公司 | Dual-channel furnace end |
| ITVE20130027A1 (en) | 2013-05-29 | 2014-11-30 | Defendi Italy Srl | PERFECTED GAS BURNER. |
| CN104713086A (en) * | 2015-03-12 | 2015-06-17 | 广东美的厨房电器制造有限公司 | Burner and gas appliance |
| CA2934675A1 (en) | 2015-07-02 | 2017-01-02 | Mabe, S.A. De C.V. | Multi burner ovni |
| WO2017097639A1 (en) * | 2015-12-08 | 2017-06-15 | Arcelik Anonim Sirketi | A burner comprising a centering member |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE149662T1 (en) * | 1990-11-12 | 1997-03-15 | De Longhi Spa | BURNER, ESPECIALLY FOR GAS COOKER APPARATUS, WITH A GREAT OPERATIONAL FLEXIBILITY |
| GB2280743B (en) * | 1993-08-06 | 1997-03-19 | Tri Square Ind Co Ltd | Gas burner |
| IT1294585B1 (en) * | 1997-08-11 | 1999-04-12 | Defendi Srl Off Mec | GAS BURNER WITH SEVERAL FLAME SECTORS. |
| IT1311777B1 (en) * | 1999-01-29 | 2002-03-19 | Ohg Defendi Srl | GAS BURNER, PARTICULARLY FOR BUILT-IN HOB. |
| FR2804496B1 (en) * | 2000-01-28 | 2002-07-19 | Sourdillon Sa | MULTIPLE FLAME CROWN GAS BURNER |
| IT1320580B1 (en) * | 2000-08-02 | 2003-12-10 | Smeg Spa | ULTRA-QUICK BURNER FOR HOB OR FOR A GAS COOKER. |
| PT1563225E (en) * | 2002-11-12 | 2010-05-28 | Sabaf Spa | Gas burner with separate feeding of the flame crowns |
-
2004
- 2004-02-13 IT IT000024A patent/ITMC20040024A1/en unknown
-
2005
- 2005-01-17 AU AU2005212730A patent/AU2005212730B2/en not_active Ceased
- 2005-01-17 CN CNB2005800045069A patent/CN100526715C/en active Active
- 2005-01-17 EP EP05703266.6A patent/EP1714076B1/en active Active
- 2005-01-17 KR KR1020067016214A patent/KR20060126558A/en not_active Application Discontinuation
- 2005-01-17 CA CA002555326A patent/CA2555326A1/en not_active Abandoned
- 2005-01-17 RU RU2006129274/06A patent/RU2350842C2/en active
- 2005-01-17 BR BRPI0507358-8A patent/BRPI0507358B1/en active IP Right Grant
- 2005-01-17 UA UAA200609044A patent/UA87831C2/en unknown
- 2005-01-17 WO PCT/IT2005/000018 patent/WO2005078342A1/en not_active Application Discontinuation
-
2006
- 2006-08-06 EG EGNA2006000737 patent/EG24857A/en active
- 2006-08-14 EC EC2006006769A patent/ECSP066769A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1926382A (en) | 2007-03-07 |
| RU2006129274A (en) | 2008-02-20 |
| KR20060126558A (en) | 2006-12-07 |
| RU2350842C2 (en) | 2009-03-27 |
| EG24857A (en) | 2010-10-31 |
| AU2005212730A1 (en) | 2005-08-25 |
| AU2005212730B2 (en) | 2009-08-20 |
| CA2555326A1 (en) | 2005-08-25 |
| BRPI0507358B1 (en) | 2017-10-24 |
| EP1714076B1 (en) | 2016-10-19 |
| ECSP066769A (en) | 2006-11-16 |
| EP1714076A1 (en) | 2006-10-25 |
| ITMC20040024A1 (en) | 2004-05-13 |
| UA87831C2 (en) | 2009-08-25 |
| WO2005078342A1 (en) | 2005-08-25 |
| BRPI0507358A (en) | 2007-07-03 |
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