DE19855708B4 - Pipe chamber damper - Google Patents
Pipe chamber damper Download PDFInfo
- Publication number
- DE19855708B4 DE19855708B4 DE1998155708 DE19855708A DE19855708B4 DE 19855708 B4 DE19855708 B4 DE 19855708B4 DE 1998155708 DE1998155708 DE 1998155708 DE 19855708 A DE19855708 A DE 19855708A DE 19855708 B4 DE19855708 B4 DE 19855708B4
- Authority
- DE
- Germany
- Prior art keywords
- inner tube
- outer jacket
- volume chambers
- volume
- chambers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000013016 damping Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000002411 adverse Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/24—Heat or noise insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
- F02K1/82—Jet pipe walls, e.g. liners
- F02K1/827—Sound absorbing structures or liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0335—Noise absorbers by means of external rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/12—Two-dimensional rectangular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
Vorrichtung zur Luft- und Körperschallabsenkung mit einem Außenmantel und einem Innenrohr, und mit zwischen Außenmantel und Innenrohr umlaufenden und in Längsrichtung einander benachbarten Volumenkammern, die nach Außen durch den Außenmantel und nach Innen durch das Innenrohr begrenzt sind, dadurch gekennzeichnet, dass der Außenmantel (1) einteilig geformt ist, und dass die Volumenkammern (3) durch den Außenmantel (1) beidseitig in Längsrichtung begrenzt sind, und dass das Innenrohr (2) zu den Volumenkammern (3) hin jeweils innerhalb der seitlichen Begrenzungen der einzelnen Volumenkammern abgestimmte Öffnungen aufweist.contraption for airborne and structure-borne noise reduction with an outer jacket and an inner tube, and with between outer jacket and inner tube circumferential and in the longitudinal direction adjacent volume chambers, which are outward through the outer jacket and are bounded inwardly by the inner tube, characterized that the outer jacket (1) is integrally formed, and that the volume chambers (3) by the outer jacket (1) on both sides in the longitudinal direction are limited, and that the inner tube (2) to the volumetric chambers (3) each within the lateral boundaries of the individual Volume chambers tuned openings having.
Description
Die Erfindung betrifft eine Vorrichtung zur Luft- und Körperschallabsenkung mit einem Außenmantel und einem Innenrohr, und mit zwischen Außenmantel und Innenrohr umlaufenden und in Längsrichtung einander benachbarten Volumenkammern, die nach Außen durch den Außenmantel und nach Innen durch das Innenrohr begrenzt sind.The The invention relates to a device for airborne and structure-borne noise reduction with an outer jacket and an inner tube, and with between outer jacket and inner tube circumferential and in the longitudinal direction adjacent volume chambers, which are outward through the outer jacket and are bounded inwardly by the inner tube.
Strömungsgeräusche kommen z. B. bei Abgasturboladern vor, die infolge hoher Drehzahlen nicht beherrschbare Unwuchten sowie Störungen durch fertigungsbedingte Verzüge (z. B. Schaufeln) aufweisen. Diese lästigen Geräusche werden sowohl über Luft- als auch Körperschall abgestrahlt, so dass hinsichtlich beider Komponenten Lösungen erforderlich sind.Flow noise come z. As in exhaust gas turbochargers before, not due to high speeds manageable imbalances as well as disturbances by production-related delays (eg, blades). These annoying noises become both over air as well as structure-borne noise radiated so that solutions regarding both components required are.
Aus
der
Nachteilig bei der bekannten Vorrichtung ist, dass durch die gewählte Form relativ viele Teile miteinander verbunden werden müssen, so dass die Herstellung der bekannten Vorrichtung relativ aufwendig und somit kostenintensiv ist.adversely in the known device is that by the selected shape relatively many parts need to be connected, so that the production of the known device is relatively expensive and thus costly.
Weiterhin
ist aus der
Nachteilig bei dieser bekannten Vorrichtung ist ebenfalls, dass durch die gewählte Form relativ viele Teile miteinander verbunden werden müssen, so dass die Herstellung der bekannten Vorrichtung relativ aufwendig und somit kostenintensiv ist.adversely in this known device is also that by the selected shape relatively many parts need to be connected, so that the production of the known device is relatively expensive and thus costly.
Weiterhin
ist aus der
Nachteilig an der bekannten Vorrichtung ist ebenfalls, dass sie einen relativ komplizierten und aus vielen Einzelteilen bestehenden Aufbau aufweist und dadurch relativ kostenintensiv in der Herstellung ist.adversely to the known device is also that they are a relative has complicated and consisting of many parts construction and This is relatively expensive to manufacture.
Aus
der
Nachteilig dabei ist, dass die Volumenkammern untereinander nicht abgegrenzt sind und eine Abstimmung auf unterschiedliche Frequenzen schwierig ist. Insbesondere nachteilig ist, dass durch die flexible Anordnung der Wellrohre bei einem eventuellen Durchbiegen die Volumenkammern sich zum einen in ihrer Größe verändern können und dass zum anderen die Zuordnung zu dem Innenrohr ebenfalls eine gewisse Veränderlichkeit aufweist.adversely it is that the volume chambers are not delimited from each other and tuning to different frequencies is difficult is. A particular disadvantage is that the flexible arrangement the corrugated pipes in a possible bending the volume chambers on the one hand can change their size and that on the other hand, the assignment to the inner tube also a certain variability having.
Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zur Luft- und Körperschallabsenkung zu schaffen, die bei guter Dämpfung und gleichzeitiger Anwesenheit hoher Temperaturen und Drücke relativ einfach und kostengünstig herstellbar ist.task It is therefore an object of the present invention to provide a device for and structure-borne noise reduction to create that with good cushioning and simultaneous presence of high temperatures and pressures relative easy and inexpensive can be produced.
Diese Aufgabe wird in Verbindung mit dem Oberbegriff des Anspruches 1 dadurch gelöst, dass der Außenmantel einteilig geformt ist, und dass die Volumenkammern durch den Außenmantel beidseitig in Längsrichtung begrenzt sind, und dass das Innenrohr zu den Volumenkammern hin jeweils innerhalb der seitlichen Begrenzungen der einzelnen Volumenkammern abgestimmte Öffnungen aufweist.These The object is in connection with the preamble of claim 1 solved by that the outer jacket is formed in one piece, and that the volume chambers through the outer shell on both sides in the longitudinal direction are limited, and that the inner tube to the volumetric chambers out each within the lateral boundaries of the individual volume chambers coordinated openings having.
Die besondere Gestaltung des Außenmantels ermöglicht es, diesen einteilig herzustellen, so dass die gesamte Vorrichtung aus nur zwei Teilen, nämlich dem Außenmantel und dem Innenrohr besteht. Zudem ermöglicht die besondere Gestaltung des Außenmantels eine kostengünstige Fertigung über geeignete Druckbeaufschlagung von Halbzeugrohren zu realisieren. Eine solche Vorrichtung ist mit hohen Temperaturen und hohen Drücken beaufschlagbar. Zur Montage muss lediglich das Innenrohr in den Außenmantel eingeschoben und beispielsweise verschweißt werden.The special design of the outer jacket allows it to make this one-piece, so that the entire device from only two parts, namely the outer jacket and the inner tube. In addition, the special design of the outer shell a cost-effective Production over to realize appropriate pressurization of semi-finished tubes. Such a device can be acted upon by high temperatures and high pressures. For assembly, only the inner tube must be in the outer jacket inserted and welded, for example.
Gemäß einer bevorzugten Ausführungsform der Erfindung weist der Außenmantel an seinen außen liegenden Enden ringförmige Rohransätze auf, in denen das Innenrohr gelagert ist und die als Anschlussstutzen dienen können.According to one preferred embodiment of Invention has the outer jacket at its outside lying ends annular tube fittings on, in which the inner tube is mounted and as a connecting piece can serve.
Es wird eine geeignete Anordnung von Volumenkombinationen kleiner Abmessungen zur breitbandigen Absenkung von Strömungsgeräuschen vorgeschlagen, die darüber hinaus hohe Temperaturen und Drücke beherrscht. Die mit dieser Anwendung verbundenen Randbedingungen lassen metallische Werkstoffe deutlich geeigneter erscheinen als z. B. heute übliche Kunststoffe für periphere Einsätze an Motoren.It becomes a suitable arrangement of volume combinations of small dimensions for broadband reduction of flow noise is proposed, which in addition high temperatures and pressures controlled. The boundary conditions associated with this application make metallic materials appear much more suitable than z. B. today usual Plastics for peripheral operations Engines.
In den Zeichnungen zeigen:In show the drawings:
Die
Vorgabe metallischer Werkstoffe erfordert neben der Dämmfunktion
geeignete, kostengünstige
Fertigungsverfahren, was mit einer speziellen Kombination von Außenmantel
Der
Außenmantel
ist dabei derart geformt, dass Volumenkammern
Die
besondere Gestaltung des Außenmantels
Gerade
hochfrequente Störungen
bei Strömungsvorgängen erfordern
jedoch zusätzlich
Maßnahmen
zur Minderung des Körperschalls,
der über die
Rohverbindungen weitergeleitet wird. Deshalb erfolgt bedarfsweise
eine Bedämpfung
der Anordnung über
metallische Gestricke
Diese besonders kleine Vorrichtung lässt sich vorteilhaft auch in Doppelausführung hintereinander schalten, wobei eine noch wesentlich höhere Dämmwirkung erzielt werden kann.These especially small device can be also advantageous in double version switch one behind the other, with a significantly higher insulation effect can be achieved.
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998155708 DE19855708B4 (en) | 1998-12-03 | 1998-12-03 | Pipe chamber damper |
DE29825193U DE29825193U1 (en) | 1998-12-03 | 1998-12-03 | Acoustic tubular damper has outer casing, inner pipe with transverse lot and rectangular cavity, knitted fabric damping and volume cavities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998155708 DE19855708B4 (en) | 1998-12-03 | 1998-12-03 | Pipe chamber damper |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19855708A1 DE19855708A1 (en) | 2000-06-08 |
DE19855708B4 true DE19855708B4 (en) | 2009-04-30 |
Family
ID=7889790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998155708 Expired - Lifetime DE19855708B4 (en) | 1998-12-03 | 1998-12-03 | Pipe chamber damper |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19855708B4 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012052548A2 (en) | 2010-10-22 | 2012-04-26 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
WO2012055784A2 (en) | 2010-10-25 | 2012-05-03 | Umfotec Umformtechnik Gmbh | Disc damper for charge air lines of an internal combustion engine having a turbocharger |
CN106609716A (en) * | 2015-10-23 | 2017-05-03 | 德韧运营公司 | Resonator assembly and manufacturing process for producing the same |
DE102020106017B3 (en) | 2020-03-05 | 2021-07-29 | Umfotec Gmbh | Fluid flow conduit silencer and method of making the same |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19956172C5 (en) * | 1999-11-23 | 2010-09-23 | Umfotec Gmbh | Double chamber damper |
EP1176355A3 (en) * | 2000-07-28 | 2003-05-28 | Trelleborg Ab | Noise attenuation arrangements for pressurised-gas conduits |
DE10125551A1 (en) * | 2001-05-23 | 2002-11-28 | Volkswagen Ag | Supercharged internal combustion engine |
FR2849114B1 (en) * | 2002-12-23 | 2007-04-13 | Renault Sa | NOISE MITIGATION DEVICE ON AN AIR INTAKE CIRCUIT |
DE10339811B4 (en) * | 2003-08-27 | 2005-09-22 | J. Eberspächer GmbH & Co. KG | Resonator for reducing airborne sound |
FR2864168B1 (en) * | 2003-12-17 | 2008-02-15 | Trelleborg Fluid Systems Geie | NOISE MITIGATION DEVICE ON AN AIR INTAKE CIRCUIT FOR INTERNAL COMBUSTION ENGINE AND AIR INTAKE CIRCUIT FOR ENGINE PROVIDED WITH SUCH A NOISE MITIGATION DEVICE |
EP1857682B1 (en) * | 2006-05-18 | 2016-05-04 | Aerzener Maschinenfabrik GmbH | Rotary piston machine with silencer |
US9784399B2 (en) | 2011-10-28 | 2017-10-10 | Umfotec Gmbh | Damper for air lines of an internal combustion engine having a turbocharger and method for producing said damper |
AT13947U1 (en) * | 2013-01-16 | 2015-01-15 | Henn Gmbh & Co Kg | Silencer and process for its production |
DE202013103960U1 (en) | 2013-09-03 | 2013-10-08 | Umfotec Gmbh | resonator |
GB2616609A (en) * | 2022-03-14 | 2023-09-20 | Dyson Technology Ltd | Noise attenuator |
CN114738151B (en) * | 2022-05-09 | 2023-06-16 | 一汽解放汽车有限公司 | Intake pipe silencing device and engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE580923C (en) * | 1930-11-05 | 1933-07-19 | Gabriel Becker | Muffler for internal combustion engines through acoustic filters |
US2367753A (en) * | 1940-04-29 | 1945-01-23 | Hayes Ind Inc | Method of making mufflers and the like |
DE9015414U1 (en) * | 1990-11-09 | 1991-01-24 | Alcan Deutschland GmbH, 3400 Göttingen | Sound-insulating air or gas guide element |
DE4210786C2 (en) * | 1992-04-01 | 1994-11-10 | Bayer Ag | Sound absorbing resonator for pipes |
-
1998
- 1998-12-03 DE DE1998155708 patent/DE19855708B4/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE580923C (en) * | 1930-11-05 | 1933-07-19 | Gabriel Becker | Muffler for internal combustion engines through acoustic filters |
US2367753A (en) * | 1940-04-29 | 1945-01-23 | Hayes Ind Inc | Method of making mufflers and the like |
DE9015414U1 (en) * | 1990-11-09 | 1991-01-24 | Alcan Deutschland GmbH, 3400 Göttingen | Sound-insulating air or gas guide element |
DE4210786C2 (en) * | 1992-04-01 | 1994-11-10 | Bayer Ag | Sound absorbing resonator for pipes |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012052548A2 (en) | 2010-10-22 | 2012-04-26 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
US9121374B2 (en) | 2010-10-22 | 2015-09-01 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
WO2012055784A2 (en) | 2010-10-25 | 2012-05-03 | Umfotec Umformtechnik Gmbh | Disc damper for charge air lines of an internal combustion engine having a turbocharger |
CN106609716A (en) * | 2015-10-23 | 2017-05-03 | 德韧运营公司 | Resonator assembly and manufacturing process for producing the same |
DE102020106017B3 (en) | 2020-03-05 | 2021-07-29 | Umfotec Gmbh | Fluid flow conduit silencer and method of making the same |
Also Published As
Publication number | Publication date |
---|---|
DE19855708A1 (en) | 2000-06-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
Representative=s name: FIEDLER UND KOLLEGEN, DE |
|
R081 | Change of applicant/patentee |
Owner name: DENKER, DIETRICH, PROF. DR.-ING., DE Free format text: FORMER OWNER: DIETRICH DENKER,MARCUS TUERK, , DE Effective date: 20141117 Owner name: TUERK, MARCUS, DIPL.-WIRTSCH.-ING., DE Free format text: FORMER OWNER: DIETRICH DENKER,MARCUS TUERK, , DE Effective date: 20141117 Owner name: TUERK, MARCUS, DIPL.-WIRTSCH.-ING., DE Free format text: FORMER OWNERS: DENKER, DIETRICH, PROF. DR.-ING., 70599 STUTTGART, DE; TUERK, MARCUS, DIPL.-WIRTSCH.-ING., 37154 NORTHEIM, DE Effective date: 20141117 Owner name: DENKER, DIETRICH, PROF. DR.-ING., DE Free format text: FORMER OWNERS: DENKER, DIETRICH, PROF. DR.-ING., 70599 STUTTGART, DE; TUERK, MARCUS, DIPL.-WIRTSCH.-ING., 37154 NORTHEIM, DE Effective date: 20141117 |
|
R082 | Change of representative |
Representative=s name: FIEDLER, OSTERMANN & SCHNEIDER, DE Effective date: 20141202 Representative=s name: FIEDLER, OSTERMANN & SCHNEIDER, DE Effective date: 20141117 |
|
R071 | Expiry of right |