EP1774555A1 - Thermobimetallschalter - Google Patents
ThermobimetallschalterInfo
- Publication number
- EP1774555A1 EP1774555A1 EP05775029A EP05775029A EP1774555A1 EP 1774555 A1 EP1774555 A1 EP 1774555A1 EP 05775029 A EP05775029 A EP 05775029A EP 05775029 A EP05775029 A EP 05775029A EP 1774555 A1 EP1774555 A1 EP 1774555A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- contact spring
- thermobimetallschalter
- housing
- switch according
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5418—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting using cantilevered bimetallic snap elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
Definitions
- the invention is based on a bimetallic switch, which is disclosed in DE 195 09 656 C2.
- the known bimetallic switch has in a housing an insulating support in which a metallic carrier is embedded, wel ⁇ cher carries a contact spring made of a bimetal.
- the contact spring is provided at its ei ⁇ NEN end with a contact piece and ver ⁇ connected at its opposite, fixed end with a leading out of the housing supply line. From a second contact piece, which is opposite to the first contact piece attached to the contact element, a second lead leads out of the housing.
- thermobimetal switch is used to protect electrical equipment, motors, transformers and the like against overheating. He should open when the temperature at his site a predetermined limit exceeds. This limit is hereinafter referred to as the switching temperature bezeich ⁇ net. So that the thermobimetal switch has a well-defined switching temperature, the contact spring is spherically shaped in a region between its fixed end and its contact piece by an embossing process. This has the consequence that the spherically shaped region can not change its curvature continuously, but only suddenly, when a change in temperature in the contact spring has established a mechanical minimum stress determined by the shape of the contact spring and by its elastic properties. For safety reasons, the tolerance limits specified for the switching temperature must be observed.
- thermobimetal switch In the known thermobimetal switch, the current, which is consumed by the electrical device to be monitored, flows through the contact spring. In this case, heat is generated in the contact spring, which depends on the current intensity and the ohmic resistance of the contact spring. This is disadvantageous for some applications, because a temperature which is higher than the temperature at the location to be monitored of the electrical device can be simulated by the current heat generated in the contact spring. It may therefore come to uner ⁇ desired tripping of the bimetallic switch. The problem is aggravated by the fact that there is a development in electrical engineering to ever higher power densities.
- Thermob ⁇ metallschaltem means that by ever smaller cable cross-sections, and this includes the cross section of a bimetallic contact, ever greater electrical currents and heat flows must be passed. The problem is further aggravated by the fact that higher power densities require, for safety reasons, at the same time a higher reliability of the bimetallic switches. At the same time, the person responsible for the development of bimetallic switches is asked to provide solutions which, if possible, are not more expensive but cheaper than known solutions.
- Thermobimetallschaiter are also known, in which the contact spring is not made of a bimetallic strip, but of a highly conductive, spring-hard Ei ⁇ sen- or copper alloy, and in which a separate Bimetallschnappulation is provided for actuating the contact spring, which loosely on the Untersei ⁇ te or Top of the contact spring is arranged so that the current to be switched with the Thermo ⁇ bimetallschaiter substantially does not flow over the Thermobi ⁇ metal.
- a Thermobimetallschaiter is known for example from EP 0246255 B1.
- Thermobimetallschaiter is indeed the Switching element (the Bimetallschnappulation) largely decoupled from the current-carrying element (the contact spring) of the bimetallic switch, but such a switch requires a greater effort in the manufacture of its parts and its assembly, because the bimetallic snap disc to be produced separately, for example, between separately punched and closed bending hooks and tabs of the contact spring must be used and secured.
- thermobimetal switches which have a circular metallic housing with an insulating cover, on the inside of which two contact pieces are fixedly arranged in a diagonal arrangement.
- the contact pieces are opposed by a contact plate which acts as a contact bridge and can be actuated together with a bimetallic snap-action plate and a spring washer arranged between the latter and the contact plate.
- the contact plate, the spring washer and the bimetallic snap-action plate are riveted to one another centrally and are thus fixed in the housing so that the spring washer with its edge is clamped between two housing parts.
- the present invention has for its object to provide a way how a bimetallic switch with a fixed at one end Druckfe ⁇ of a bimetallic strip can be improved so that it can be made inexpensively from a mi ⁇ nimal number of components in small size and at the same time shows a reliable switching behavior, which is largely uninfluenced by the current heat generated in the Ther ⁇ bimetallic switch.
- This object is achieved by a thermal bimetallic switch with the features specified in Pa ⁇ tent pipe 1 features.
- Advantageous developments of the invention are specified in the subclaims.
- the bimetallic switch according to the invention has an electrically insulating support, a contact spring made of a bimetal carried by the support, which is shaped at least in a partial region such that it suddenly changes its curvature when its switching temperature is exceeded, two electrical leads held by the insulating support. which lead to two contact pieces separated from each other and from the contact spring, and a contact bridge, which is mounted opposite the two contact pieces on the contact spring.
- the bimetallic switch consists of a minimum number of components, namely two leads that lead to two contact pieces, a contact spring made of a bimetallic strip and an electrically insulating support that carries these three elements. It does not seem possible to get along with fewer items.
- the small number of individual parts favors a rational, automation-compliant production.
- the electrically insulating support can be inexpensively molded by injection molding of plastic.
- the leads and the contact spring can be embedded in the insulating support, in particular by being overmoulded with plastic. But it is also possible to produce the insulating support of two parts to be joined together, between which the
- Feed lines and the contact spring for example, be positively locked by latching.
- the two parts of the insulating support may be identical to each other, so that they can be assembled symmetrically.
- the leads with their contact pieces and the bimetallic contact spring can be formed from pre-punched band-shaped semi-finished product. This is favorable for an automated production.
- the contact pieces and the contact bridge can already be fastened on the band-shaped semifinished product by riveting, soldering or welding. So you can, for example, a bimetallic band continuously provided by seam welding with a contact profile for the contact bridge. From such a semifinished product can then be formed by embossing and punching individual contact springs. Accordingly, the leads to the contact pieces can form a strip-shaped semifinished product. For the production of the leads but also individual contact pieces can be welded, soldered or riveted to the semi-finished product. Contact layers suitable for switching lower currents can be formed by galvanic metal coating. ⁇ Although the bimetallic switch according to the invention a
- Thermobimetallizofeder has, which switches the currents to be switched directly affects the current flowing through the switch, the switching behavior virtually not, because the current flows in the shortest path from one contact piece via the contact bridge to the other contact piece and the contact bridge regardless What makes the bimetallic contact spring consists of a highly electrically conductive material, in particular based on copper or silver, and without adverse consequences for the switching behavior of the bimetallic contact even in the case of miniaturization of the switch can have a sufficiently large line cross-section.
- a contact spring which is fixed at one end and opens or closes the switch at the opposite end. When you open the switch to achieve a larger contact distance than you can achieve it when using a same length, centrally mounted snap disk. This is for miniaturized switches, in which short contact springs are sought, of particular importance.
- the contact spring can be formed in a known manner, in particular be bulged by embossing, in order to achieve that it suddenly changes its curvature when its switching temperature is exceeded.
- This shaping expediently takes place only in a central portion of the contact spring.
- the contact bridge is preferably arranged outside the region of the contact spring which changes its curvature as a consequence of its shape, preferably directly at the movable end of the contact spring.
- a contact bridge is particularly suitable a profile section of a highly electrically conductive contact material, in particular on the basis of copper or Sil ⁇ ber.
- the contact bridge is suitably fastened by riveting, welding or soldering on the contact spring, preferably already in the course of manufacturing a band-shaped semi-finished, from which the contact springs provided with a contact bridge are formed by embossing, punching and possibly bending.
- the contact bridge does not have to be rigidly fastened to the contact spring. It can also be attached to the contact spring in the manner of a rocker by being connected to the center of the contact spring with some play, for example by means of a clamp or a rivet.
- Such an embodiment has the advantage that it can compensate for misalignments of the contact bridge and / or the contact pieces and can ensure that the contact bridge contacts both contact pieces equally well.
- the contact spring can be fastened with its fixed end directly to the insulating carrier.
- Such an embodiment is particularly suitable for air-open switch, the rear derailleur is not protected by a housing.
- the contact spring not directly, but only indirectly to be attached to the electrically insulating support, in particular so that the contact spring is connected with its remote from the contact bridge end by welding, soldering, clamping, crimping or riveting with a metallic Trä ⁇ ger, which in turn is held by the insulating support.
- the metallic carrier should be characterized by a greater rigidity than it has the contact spring, so that the switching behavior and the switching path are not affected by unintentional bending of the metallic carrier.
- the metallic carrier itself is expediently embedded with a part of itself in the insulating carrier so that it is firmly anchored therein.
- the metallic support is fixedly connected to the insulating support at two spaced apart locations.
- the legs of the U preferably run on the lateral walls of a flat housing and can increase its dimensional stability against external pressure, which is important in some applications of bimetallic switches.
- the use of a metallic carrier for the bimetallic contact spring has the further advantage that the fixed end of the contact spring can be arranged at the remote from the insulating support end of the housing, whereas the free end of the contact spring is located with the contact bridge in the vicinity of isolieren ⁇ the carrier , This makes it easier for the two contact pieces, with which the contact bridge is to work together, at well-defined locations position, for which only extremely short leads are needed, which only have to project over the insulating support with a short stub. As a result, very stable arrangements are obtained even in the case of miniaturized switches. In addition, erroneous positioning of the contact pieces is unlikely with short leads, whereby an automated production is facilitated.
- the housing of the bimetallic thermal switch may be made of metal or plastic.
- a metallic housing is preferred.
- the metallic carrier of the contact spring it is preferred that it is insulated from the housing.
- the invention also allows an embodiment in which the metalli ⁇ cal carrier of the contact spring contacts the metallic housing or is otherwise electrically conductively connected to it. The advantage of this is that it allows the use of the bimetal temperature switch in a star connection, in which an electrical contact is made not only on the leads leading to the two fixed contact pieces of the switch, but also on the housing.
- the leads to the contact pieces are expediently embedded in the insulating support as well as the legs of the metallic support.
- the switch is constructed mirror-symmetrically with respect to the two contact pieces or the electrical leads which carry them.
- the electrically insulating carrier is expediently at the same time for closing the housing by being inserted and fixed in it from one end. It can for example be determined by gluing, by clamping, by crimping the edge of the housing against the insulating support or by ultrasonic welding.
- a sealing of the housing by casting a after the insertion of the electrically insulating support optionally still remaining blei opening of the housing by means of a thermosetting sealing compound possible.
- the switch can also be protected, as known per se, only by means of a shrunk-on shrink-tubing section, which also offers protection against the contact with live electrical connections.
- FIG. 1 shows a switch according to the invention in a plan view of its rear derailleur with cut housing
- FIG. 2 shows a longitudinal section according to section line H-II through the switch shown in FIG. 1, the contacts being closed,
- FIG. 3 shows the illustration corresponding to FIG. 2 with the contacts open
- FIG. 4 shows a modification of the switch from FIG. 1 in a cross-section along the section line IV-IV in FIG. 1 when closed
- FIG. 5 shows a section corresponding to FIG. 4, but with the switch open and
- FIG. 6 shows a third example of a switch according to the invention in a representation corresponding to FIG. 1.
- thermobimetal Ischalter show the figures 1 to 3 greatly enlarged (scale about 10: 1). He has a flat housing 1, which may be made of metal or plastic and at one end has an opening which through a insulating support 2 is closed.
- the insulating carrier 2 is a molded part made of plastic, which has a flange 2a which lies outside the housing 1 and an inner part 2b which engages in a form-fitting manner in the housing 1.
- the flange 2 a strikes the edge of the opening of the housing 1.
- the inner part 2b has lateral projections 2c, which abut the low side walls 1a of the housing 1.
- a metallic support 3 is arranged, which is formed in the plan view substantially U-shaped. Accordingly, it has a base 3a and two legs 3b extending from this base 3a.
- a stubby extension 3c extends centrally from the base 3a, in a direction opposite to the direction of the legs 3b.
- a contact spring 4 made of a bimetal, which extends parallel to the legs 3b in their direction, and a trim bracket 10, which is dispensable, are attached to the extension 3c.
- the contact spring 4 could also be fastened by riveting, clamping or crimping.
- the metallic carrier 3 may be formed by punching and bending from a metal sheet.
- legs 3b are bent relative to the base 3a at a right angle, extend parallel to the side walls 1a of the housing 1 and extend in the region of the extensions 2c into the insulating support 2, in which they are embedded and preferably by undercuts which formed on the embedded portions of the legs 3b are anchored in the extensions 2c.
- the insulating support 2 and the metallic carrier 3 form in the manner described a stable assembly, which is particularly well suited as a basis for the construction of the switching mechanism of the bimetallic switch.
- the contact spring 4 is ver ⁇ seen at its movable end with a contact bridge 5, which extends transversely to the longitudinal direction of the legs 3b and the contact spring 4 and befe ⁇ stigt by riveting, soldering or welding on the contact spring.
- a contact bridge 5 which extends transversely to the longitudinal direction of the legs 3b and the contact spring 4 and befe ⁇ stigt by riveting, soldering or welding on the contact spring.
- the contact spring 4 In the middle region of the contact spring 4, between the dumb-shaped Extension 3c and the movable end, on which the contact bridge 5 is located, which is the contact spring 4 with a convex embossing 4a of approximately circular outline 4b provided. This shaping ensures that the thermostatic bimetallic switch suddenly opens or closes when its switching temperature is exceeded.
- the contact spring 4 can also be embossed into a differently shaped bulge if this leads to a sudden change in the curvature of the contact spring 4 only when the switching temperature is exceeded;
- the bulge may have a trapezoidal course across the surface of the contact spring.
- the contact bridge 5 are two contact pieces 6 and 7 opposite.
- the isolieren ⁇ de carrier 2 carries these two contact pieces 6 and 7 separated from each other, in ⁇ the two metallic, formed of sheet metal leads 8 and 9 are embedded in the carrier 2 so that they protrude each with its two ends of the carrier 2.
- On the projecting into the housing 1 sections of the leads 8 and 9 are the two contact pieces 6 and 7.
- the switch shown can be produced in a miniaturized version. It consists of a minimum number of individual parts, which are favorable for automated assembly. Even with a miniaturized design, the current flowing through the switch practically does not influence the switching behavior.
- FIGS. 4 and 5 show a modified embodiment of the switch shown in FIGS. 1 to 3.
- the modification consists in that the contact bridge 5 is not rigidly connected to the contact spring 4, but in the manner of a rocker.
- the rectangular in plan view contact bridge 5 on its side facing the contact spring 4 side centered a projection 5a a mushroom-shaped extension 5b, which consists of a neck 5c and a head 5d.
- the neck 5c is caught in a mating hole 4c with some play.
- the hole 4c and the neck 5c have an outline shape deviating from the circular shape; they preferably have a rectangular outline, so that the contact bridge 5 on the contact spring 4 can not rotate.
- the contact bridge 5 can, for example, be attached to the contact spring 4 by firstly forming only the neck 5c on the projection 5b, inserting it into the hole 4c punched in the contact spring 4 and then by means of a deformation tool which a die with a contour which determines the shape of the head 5d has the head 5d, similar to rivets.
- This embodiment has the advantage that misalignments between the contact bridge 5 and the two contact pieces 6 and 7 in the manner as shown in FIG. 5 can be compensated automatically as a result of the possible rocking motion, so that it is definitely one full contact of the contact bridge 5 with the two contact pieces 6 and 7 comes, as shown in Figure 4.
- the exemplary embodiment illustrated in FIG. 6 differs from the exemplary embodiment illustrated in FIGS. 1 to 3 in that a tongue 3d is cut out of the legs 3b of the metallic carrier 3.
- the two tongues 3d are bent outward and lie on the soracen ⁇ the 1a of the housing 1, which in this case consists of metal, with mechanical shear bias, so that the metallic support 3 and the housing 1 are always at the same electrical potential ,
- This allows Verwen ⁇ tion of the bimetallic switch in a star connection, in which an electrical contact is made not only at the two terminal lugs 8a and 9a, but also on the housing 1.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004036117A DE102004036117B4 (de) | 2004-07-24 | 2004-07-24 | Thermobimetallschalter |
PCT/EP2005/008001 WO2006010563A1 (de) | 2004-07-24 | 2005-07-22 | Thermobimetallschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1774555A1 true EP1774555A1 (de) | 2007-04-18 |
EP1774555B1 EP1774555B1 (de) | 2008-12-17 |
Family
ID=34993027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05775029A Revoked EP1774555B1 (de) | 2004-07-24 | 2005-07-22 | Thermobimetallschalter |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070252671A1 (de) |
EP (1) | EP1774555B1 (de) |
AT (1) | ATE418153T1 (de) |
DE (2) | DE102004036117B4 (de) |
ES (1) | ES2319800T3 (de) |
WO (1) | WO2006010563A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8237536B2 (en) * | 2006-10-30 | 2012-08-07 | Uchiya Thermostat Co., Ltd. | Thermal protector |
DE102009053258C5 (de) * | 2009-11-05 | 2016-01-14 | Tmc Sensortechnik Gmbh | Thermobimetallschalter und Verfahren zu seiner Montage |
DE102011016896C5 (de) * | 2011-04-13 | 2016-10-27 | Tmc Sensortechnik Gmbh | Temperaturschutzschalter |
DE102011078636A1 (de) * | 2011-07-05 | 2013-01-10 | Siemens Aktiengesellschaft | Überlastauslöser, insbesondere für einen Leistungsschalter |
DE102011119632B3 (de) * | 2011-11-22 | 2013-04-11 | Marcel P. HOFSAESS | Temperaturabhängiges Schaltwerk |
DE102012112487A1 (de) | 2012-12-18 | 2014-06-18 | Thermik Gerätebau GmbH | Temperaturschutzschaltung |
DE102013108508A1 (de) | 2013-08-07 | 2015-02-12 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
DE202017106035U1 (de) | 2017-10-04 | 2019-01-10 | Tmc Sensortechnik Gmbh | Elektrischer Netzstecker |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2917482C2 (de) * | 1979-04-30 | 1982-11-25 | Peter 7530 Pforzheim Hofsäss | Übertemperaturschutzschalter |
US4376926A (en) * | 1979-06-27 | 1983-03-15 | Texas Instruments Incorporated | Motor protector calibratable by housing deformation having improved sealing and compactness |
DE3539425A1 (de) * | 1985-11-07 | 1987-05-14 | Limitor Ag | Thermobimetallschalter |
JPH0831300B2 (ja) * | 1987-10-07 | 1996-03-27 | 生方 眞哉 | 三相用サーマルプロテクタ |
US4866408A (en) * | 1988-10-28 | 1989-09-12 | Texas Instruments Incorporated | Multiphase motor protector apparatus |
JP2519530B2 (ja) * | 1989-03-01 | 1996-07-31 | 生方 眞哉 | 熱応動スイッチ |
US5196820A (en) * | 1990-12-19 | 1993-03-23 | Ubukata Industries Co., Ltd. | Thermally responsive switch and method of making the same |
DE19509656C2 (de) * | 1995-03-17 | 1997-01-16 | Radbruch Jens Dipl Ing | Temperaturschutzschalter |
DE19546005C2 (de) * | 1995-12-09 | 1999-07-08 | Hofsaes Marcel | Schalter mit einem temperaturabhängigen Schaltwerk |
CA2208910C (en) * | 1996-07-04 | 2001-11-06 | Ubukata Industries Co., Ltd. | Thermal protector for electric motors |
DE19708436C2 (de) * | 1997-03-01 | 1999-08-19 | Hofsaes | Temperaturabhängiger Schalter mit Kontaktbrücke und Verfahren zu dessen Herstellung |
DE19727197C2 (de) * | 1997-06-26 | 1999-10-21 | Marcel Hofsaess | Temperaturabhängiger Schalter mit Kontaktbrücke |
DE19748589C2 (de) * | 1997-11-04 | 1999-12-09 | Marcel Hofsaes | Schalter mit einem temperaturabhängigen Schaltwerk |
GB2331184B (en) * | 1997-11-06 | 1999-09-22 | Ubukata Ind Co Ltd | Thermally responsive switch |
DE19827113C2 (de) * | 1998-06-18 | 2001-11-29 | Marcel Hofsaes | Temperaturabhängiger Schalter mit Stromübertragungsglied |
DE29917174U1 (de) * | 1999-09-30 | 2000-01-13 | Abb Patent Gmbh | Elektronisches Überlastrelais |
DE10110562C1 (de) * | 2001-03-06 | 2002-12-19 | Marcel Hofsaes | Temperaturabhängiger Schalter mit aufgestempelter Kleberschicht |
WO2003096367A1 (fr) * | 2002-05-07 | 2003-11-20 | Ubukata Industries Co.,Ltd. | Protecteur thermique |
-
2004
- 2004-07-24 DE DE102004036117A patent/DE102004036117B4/de active Active
-
2005
- 2005-07-22 EP EP05775029A patent/EP1774555B1/de not_active Revoked
- 2005-07-22 DE DE502005006292T patent/DE502005006292D1/de active Active
- 2005-07-22 ES ES05775029T patent/ES2319800T3/es active Active
- 2005-07-22 WO PCT/EP2005/008001 patent/WO2006010563A1/de active Application Filing
- 2005-07-22 US US11/658,832 patent/US20070252671A1/en not_active Abandoned
- 2005-07-22 AT AT05775029T patent/ATE418153T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006010563A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2319800T3 (es) | 2009-05-12 |
EP1774555B1 (de) | 2008-12-17 |
DE502005006292D1 (de) | 2009-01-29 |
DE102004036117B4 (de) | 2006-12-14 |
DE102004036117A1 (de) | 2006-03-16 |
ATE418153T1 (de) | 2009-01-15 |
WO2006010563A1 (de) | 2006-02-02 |
US20070252671A1 (en) | 2007-11-01 |
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