DE10308702A1 - Sealing system in double roller bearing for separating two oil chambers in road vehicle gearbox has ring with two inner and two outer lips facing in two directions and engaging bearing races - Google Patents
Sealing system in double roller bearing for separating two oil chambers in road vehicle gearbox has ring with two inner and two outer lips facing in two directions and engaging bearing races Download PDFInfo
- Publication number
- DE10308702A1 DE10308702A1 DE2003108702 DE10308702A DE10308702A1 DE 10308702 A1 DE10308702 A1 DE 10308702A1 DE 2003108702 DE2003108702 DE 2003108702 DE 10308702 A DE10308702 A DE 10308702A DE 10308702 A1 DE10308702 A1 DE 10308702A1
- Authority
- DE
- Germany
- Prior art keywords
- ring
- shaft
- sealing
- rolling bearing
- rings
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7893—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a cage or integral therewith
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/005—Fluid passages not relating to lubrication or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung zum Abdichten voneinander getrennter Fluidräume in einem Getriebe, insbesondere einem Geschwindigkeits-Wechselgetriebe für Kraftfahrzeuge, mit einer in einer Zwischenwand des Getriebes über zwei Wälzlager drehbar gelagerten Welle und zwei je einen Fluidraum abdichtenden Wellendichtringen. Zur Schaffung einer baulich und funktionell günstigen Konstruktion wird vorgeschlagen, dass die beiden Wellendichtringe zwischen den Wälzlagern angeordnet sind.The invention relates to a device for sealing separate fluid spaces in a transmission, in particular a speed change transmission for motor vehicles, with a shaft rotatably mounted in an intermediate wall of the transmission via two roller bearings and two shaft sealing rings each sealing a fluid space. In order to create a structurally and functionally favorable construction, it is proposed that the two shaft sealing rings be arranged between the roller bearings.
Description
Die Erfindung betrifft eine Vorrichtung zum Abdichten voneinander getrennter Fluidräume in einem Getriebe, insbesondere einem Geschwindigkeits-Wechselgetriebe für Kraftfahrzeuge, gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a device for sealing separate fluid spaces in a transmission, in particular a speed change gear for motor vehicles, according to the preamble of claim 1.
Eine derartige Vorrichtung zeigt
beispielsweise die
Aufgabe der Erfindung ist es, eine Vorrichtung der gattungsgemäßen Art vorzuschlagen, die baulich und funktionell besonders günstig hinsichtlich der Lagerung und Abdichtung zwischen den genannten Fluidräumen ausführbar ist.The object of the invention is a Device of the generic type propose the structurally and functionally particularly favorable in terms of Storage and sealing between the fluid spaces mentioned is executable.
Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung enthalten die weiteren Patentansprüche.This object is achieved with the characterizing features of claim 1 solved. advantageous Further developments of the invention contain the further claims.
Erfindungsgemäß wird vorgeschlagen, dass die beiden Wellendichtringe zwischen den Wälzlagern angeordnet sind. Daraus resultiert, dass die durch die beiden Wälzlager gegebene Lager-Abstützbasis bei an sich gleichen Einbaumaßen verbreitert und damit konstruktiv steifer ausgeführt ist; ferner sind die Wellendichtringe in eine quasi strömungsberuhigte Zone verlagert und es ist eine kombinierte Schmierung der Wälzlager geschaffen, bei der das eine Wälzlager über den einen Fluidraum und das andere Wälzlager über den zweiten Fluidraum geschmiert ist.According to the invention it is proposed that the two shaft seals are arranged between the roller bearings. from that results in the bearing support base given by the two rolling bearings with identical installation dimensions widened and thus structurally stiffer; furthermore the shaft sealing rings in a quasi-calming flow Zone shifted and it is a combined lubrication of the rolling bearings created in which a roller bearing over the one fluid chamber and the other roller bearing over the second fluid chamber is lubricated.
Bevorzugt können die beiden Wälzlager einen gemeinsamen Lagerring aufweisen und die Wellendichtringe mit diesem Lagerring dichtend zusammenwirken. Dem entsprechend können bei Sicherstellung einer zuverlässigen Abdichtung die Abmaße der Wellendichtringe zumindest in radialer Ausrichtung vermindert werden. Der Lagerring kann bevorzugt der Außenring der Wälzlager sein.Preferably, the two roller bearings have a common bearing ring and the shaft seals cooperate sealingly this bearing ring. Accordingly, at Ensuring a reliable Sealing the dimensions of the Shaft seals can be reduced at least in the radial orientation. The bearing ring can preferably be the outer ring of the roller bearings his.
Des weiteren wird vorgeschlagen, dass zwischen den Innenringen der Wälzlager ein mit den Wellendichtringen zusammen wirkender Anlaufring vorgesehen ist. Die Dichtlippen der Wellendichtringe laufen somit nicht direkt an der Welle an, sondern beanspruchen lediglich den Anlaufring; ferner ist eine weitere Redu zierung der radialen Abmaße der Wellendichtringe erzielbar. Der Anlaufring kann ein separater Ring sein; herstellungstechnisch besonders günstig kann er jedoch zumindest an einen der Innenringe der Wälzlager angeformt sein.It is also proposed that that between the inner rings of the roller bearings with the shaft seals interacting thrust ring is provided. The sealing lips of the Shaft seals do not run directly on the shaft, but instead only stress the thrust ring; further reduction is the radial dimensions the shaft seals can be achieved. The thrust ring can be a separate one Be ring; However, it can at least be particularly cheap in terms of production technology to one of the inner rings of the rolling bearings be molded on.
Besonders vorteilhaft können die Wellendichtringe mit radial innenliegenden und radial außenliegenden Dichtlippen versehen und mit in den Wälzlagern angeordneten Käfigen verbunden sein. Durch diese Anordnung drehen sich die Wellendichtringe mit den zwischen die Wälzelemente der Wälzlager eingreifenden Käfigen mit einer Drehzahl, die nur etwa der halben Drehzahl der Welle entspricht, so dass der Verschleiß an den Dichtlippen der Wellendichtringe entsprechend vermindert ist.The can be particularly advantageous Shaft seals with radially inner and radially outer Provide sealing lips and connected with cages arranged in the rolling bearings his. With this arrangement, the shaft sealing rings rotate with them between the rolling elements the rolling bearing engaging cages at a speed that only corresponds to about half the speed of the shaft, so that wear out the sealing lips of the shaft sealing rings is reduced accordingly.
Zur Erzielung einer vereinfachten Montage können dabei die Wellendichtringe mit den Käfigen der Wälzlager zu einer Montageeinheit verbunden sein.To achieve a simplified Can assemble the shaft seals with the cages of the rolling bearings to form an assembly unit be connected.
Ferner können die Käfige mit radialen Vorsprüngen versehen sein, die zur Führung und Stabilisierung der Käfige relativ zu den Lagerringen der Wälzlager dienen. Diese Vorsprünge können bevorzugt radial nach innen ausgerichtet sein und an den Innenringen der Wälzlager anlaufen.Furthermore, the cages can be provided with radial projections be the one for guidance and stabilization of the cages relative to the bearing rings of the rolling bearings serve. These ledges can preferably be aligned radially inwards and on the inner rings the rolling bearing start.
Des weiteren kann in dem gemeinsamen Außenring der Wälzlager eine zwischen die Dichtlippen der beiden Wellendichtringe mündende Entlüftungsbohrung ausgeführt sein, die mit einer gehäuseseitigen Entlüftung des Getriebes korrespondiert.Furthermore, in the common outer ring the rolling bearing a vent hole opening between the sealing lips of the two shaft sealing rings accomplished be the one with a case-side vent of the gearbox corresponds.
Zur Sicherstellung einer zuverlässigen Beölung eines oder beider Wälzlager kann in dem Außenring der Wälzlager zumindest ein Kanal angeordnet sein, der mit einem der Fluidräume kommuniziert und der zwischen den Dichtlippen des Wellendichtringes und dem angrenzenden Wälzlager einmündet. Damit ist auch bei ungünstigen Betriebsbedingungen eine ausreichende Beölung des Wälzlagers und des jeweils benachbarten Wellendichtringes unmittelbar aus dem jeweiligen Fluidraum gegeben.To ensure reliable oiling of a or both bearings can in the outer ring the rolling bearing at least one channel can be arranged which communicates with one of the fluid spaces and the between the sealing lips of the shaft sealing ring and the adjacent roller bearing opens. This is also the case with unfavorable ones Operating conditions adequate lubrication of the rolling bearing and the neighboring one Shaft sealing ring given directly from the respective fluid space.
Die beiden Wälzlager können bevorzugt Kegelrollenlager in O-Anordnung sein, in die die Wellendichtringe zwischen die jeweiligen Reihen von Kegelrollen als Wälzelemente montagegünstig integriert sind.The two roller bearings can preferably be tapered roller bearings be in an O arrangement, into which the shaft seals between the respective rows of tapered rollers as rolling elements mount low are integrated.
Die Vorrichtung kann schließlich besonders vorteilhaft an einem Geschwindigkeits-Wechselgetriebe für Kraftfahrzeuge mit einem integriertem Vorderachs-Differenzial verwendet sein, wobei der eine Fluidraum das Differenzial umgibt und der andere Fluidraum Bauteile des Geschwindigkeits-Wechselgetriebes umschließt und wobei unterschiedliche Schmiermittel in den Fluidräumen verwendet sind. Die Wälzlager können dann unter anderem auch auf die unterschiedlichen Schmiermittel in den Fluidräumen ausgelegt sein.Finally, the device can be particularly advantageous on a speed change gearbox for motor vehicles with one integrated front axle differential can be used, the one fluid space the differential surrounds and the other fluid space components of the speed change gear surrounds and using different lubricants in the fluid spaces are. The roller bearings can then among other things also on the different lubricants in the fluid spaces be designed.
Ein Ausführungsbeispiel der Erfindung ist im Folgenden mit weiteren Einzelheiten näher beschrieben.An embodiment of the invention is described in more detail below with further details.
Die anliegende schematische Zeichnung zeigt einen teilweisen Längsschnitt im Bereich einer Zwischenwand eines Geschwindigkeits-Wechselgetriebes für Kraftfahrzeuge mit einer Welle, einem doppelten Kegelrollenlager und zwei Wellendichtringen, wobei auch ein Doppel-Wellendichtring möglich ist.The attached schematic drawing shows a partial longitudinal section in the area of an intermediate wall of a speed change gear for motor vehicles with a shaft, a double tapered roller bearing and two shaft seals, whereby a double shaft seal is also possible.
In der Zeichnung ist ein Abschnitt
Die Welle
Ferner ist um die Welle
Zur Abdichtung der beiden Fluidräume
Ein jeder Wellendichtring
Das doppelte Kegelrollenlager
Die Innenringe
An den Innenring
Ferner sind an den Käfigen
Des weiteren ist in dem Außenring
Ferner ist in dem Außenring
Durch die beschriebene Kopplung der
Wellendichtringe
Durch die beschriebene Dichtanordnung wird
das Kegelrollenlager mit den Kegelrollen
Die Erfindung ist nicht auf das vorstehende Ausführungsbeispiel
beschränkt.
Anstelle des beschriebenen Doppelkegelrollenlagers
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003108702 DE10308702A1 (en) | 2003-02-28 | 2003-02-28 | Sealing system in double roller bearing for separating two oil chambers in road vehicle gearbox has ring with two inner and two outer lips facing in two directions and engaging bearing races |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003108702 DE10308702A1 (en) | 2003-02-28 | 2003-02-28 | Sealing system in double roller bearing for separating two oil chambers in road vehicle gearbox has ring with two inner and two outer lips facing in two directions and engaging bearing races |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10308702A1 true DE10308702A1 (en) | 2004-09-09 |
Family
ID=32842004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003108702 Withdrawn DE10308702A1 (en) | 2003-02-28 | 2003-02-28 | Sealing system in double roller bearing for separating two oil chambers in road vehicle gearbox has ring with two inner and two outer lips facing in two directions and engaging bearing races |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10308702A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025796A1 (en) * | 2004-05-26 | 2005-12-22 | Fag Kugelfischer Ag & Co. Ohg | Sealed rolling bearing, in particular sealed four-row tapered roller bearing for support and work roll bearings on rolling stands |
| DE102006036006A1 (en) * | 2006-08-02 | 2008-02-07 | Schaeffler Kg | Sealed rolling bearing |
| EP1840391A3 (en) * | 2006-03-29 | 2008-06-04 | JTEKT Corporation | Rolling bearing device with a double row rolling contact bearing for supporting a pinion shaft |
| WO2010043248A1 (en) * | 2008-10-14 | 2010-04-22 | Aktiebolaget Skf | Seal for rolling bearing, in particular for rolling bearing used in a wind turbine |
| DE102010033822A1 (en) * | 2010-08-09 | 2011-08-04 | Schaeffler Technologies GmbH & Co. KG, 91074 | Bearing arrangement for rotational storage of a machine element |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1914884U (en) * | 1965-03-03 | 1965-04-29 | Duerkoppwerke Ag | ROLLER BEARING WITH PLASTIC CAGE. |
| DE2753340A1 (en) * | 1977-11-30 | 1979-05-31 | Daimler Benz Ag | Ball or roller bearing - has seal and cage formed as separate components which may be clipped together |
| DE3738529A1 (en) * | 1987-11-13 | 1988-10-20 | Daimler Benz Ag | Seal for rolling bearings |
| EP0687825A2 (en) * | 1994-05-20 | 1995-12-20 | The Timken Company | Seal for package bearing |
| DE19813587A1 (en) * | 1998-03-27 | 1999-09-30 | Skf Gmbh | Cage-based seal for conical roller bearing |
| DE19947202A1 (en) * | 1999-10-01 | 2001-04-05 | Audi Ag | Seal for shaft passing through housing and mounted in low friction bearing comprises sealing ring with lip which cooperates with intermediate ring and second shaft sealing ring connected to bearing with lip which cooperates with shaft |
| US6464399B1 (en) * | 1999-12-27 | 2002-10-15 | The Timken Company | Hub assembly for automotive vehicles |
| US20030031393A1 (en) * | 2001-07-13 | 2003-02-13 | Stephane Bellufi | Bearing with tapered rolling bodies provided with a sealing device |
-
2003
- 2003-02-28 DE DE2003108702 patent/DE10308702A1/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1914884U (en) * | 1965-03-03 | 1965-04-29 | Duerkoppwerke Ag | ROLLER BEARING WITH PLASTIC CAGE. |
| DE2753340A1 (en) * | 1977-11-30 | 1979-05-31 | Daimler Benz Ag | Ball or roller bearing - has seal and cage formed as separate components which may be clipped together |
| DE3738529A1 (en) * | 1987-11-13 | 1988-10-20 | Daimler Benz Ag | Seal for rolling bearings |
| EP0687825A2 (en) * | 1994-05-20 | 1995-12-20 | The Timken Company | Seal for package bearing |
| DE19813587A1 (en) * | 1998-03-27 | 1999-09-30 | Skf Gmbh | Cage-based seal for conical roller bearing |
| DE19947202A1 (en) * | 1999-10-01 | 2001-04-05 | Audi Ag | Seal for shaft passing through housing and mounted in low friction bearing comprises sealing ring with lip which cooperates with intermediate ring and second shaft sealing ring connected to bearing with lip which cooperates with shaft |
| US6464399B1 (en) * | 1999-12-27 | 2002-10-15 | The Timken Company | Hub assembly for automotive vehicles |
| US20030031393A1 (en) * | 2001-07-13 | 2003-02-13 | Stephane Bellufi | Bearing with tapered rolling bodies provided with a sealing device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025796A1 (en) * | 2004-05-26 | 2005-12-22 | Fag Kugelfischer Ag & Co. Ohg | Sealed rolling bearing, in particular sealed four-row tapered roller bearing for support and work roll bearings on rolling stands |
| EP1840391A3 (en) * | 2006-03-29 | 2008-06-04 | JTEKT Corporation | Rolling bearing device with a double row rolling contact bearing for supporting a pinion shaft |
| US7811000B2 (en) | 2006-03-29 | 2010-10-12 | Jtekt Corporation | Rolling bearing device for supporting pinion shaft |
| DE102006036006A1 (en) * | 2006-08-02 | 2008-02-07 | Schaeffler Kg | Sealed rolling bearing |
| WO2008014768A3 (en) * | 2006-08-02 | 2008-04-03 | Schaeffler Kg | Sealed rolling bearing |
| WO2010043248A1 (en) * | 2008-10-14 | 2010-04-22 | Aktiebolaget Skf | Seal for rolling bearing, in particular for rolling bearing used in a wind turbine |
| WO2010043574A1 (en) * | 2008-10-14 | 2010-04-22 | Aktiebolaget Skf | Seal for rolling bearing, in particular for rolling bearing used in a wind turbine |
| US8613557B2 (en) | 2008-10-14 | 2013-12-24 | Aktiebolaget Skf | Seal for rolling bearing used in a wind turbine |
| US8998499B2 (en) | 2008-10-14 | 2015-04-07 | Aktiebolaget Skf | Seal for rolling bearing used in a wind turbine |
| DE102010033822A1 (en) * | 2010-08-09 | 2011-08-04 | Schaeffler Technologies GmbH & Co. KG, 91074 | Bearing arrangement for rotational storage of a machine element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8110 | Request for examination paragraph 44 | ||
| R120 | Application withdrawn or ip right abandoned |
Effective date: 20131128 |