EP1900885A2 - Dispositif destiné à la diminution d'émissions de bruit et de chaleur - Google Patents

Dispositif destiné à la diminution d'émissions de bruit et de chaleur Download PDF

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Publication number
EP1900885A2
EP1900885A2 EP07405276A EP07405276A EP1900885A2 EP 1900885 A2 EP1900885 A2 EP 1900885A2 EP 07405276 A EP07405276 A EP 07405276A EP 07405276 A EP07405276 A EP 07405276A EP 1900885 A2 EP1900885 A2 EP 1900885A2
Authority
EP
European Patent Office
Prior art keywords
interior
air
laboratory
housing
air inlet
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Withdrawn
Application number
EP07405276A
Other languages
German (de)
English (en)
Other versions
EP1900885A3 (fr
Inventor
Alvaro Gonzalez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1900885A2 publication Critical patent/EP1900885A2/fr
Publication of EP1900885A3 publication Critical patent/EP1900885A3/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8218—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only soundproof enclosures

Definitions

  • the invention relates to a device for reducing noise and heat immissions, which can be used in various devices, especially in laboratory equipment as used in laboratories.
  • Laboratory equipment is used in many industrial and scientific processes, such as in the chemical industry and pharmaceutical industry. Such laboratory instruments are used for various purposes, such as for chromatography or spectroscopy, and include various devices such as chromatographs (gas chromatographs, liquid chromatographers, thin-layer chromatographers, anion exchange chromatographs, etc.), spectroscopes (prism spectrometers, grating spectrometers, infrared spectrometers, atomic absorption spectrometers, electron energy loss spectroscopes, time-of-flight spectrometers, mass spectrometers , Optical Emission Spectrometer (OES), Spectral Analyzers, Radiation Detectors, Semiconductor Detectors, etc.) and Particle Accelerators (Linear Accelerator, Van de Graaff Accelerator, Tandem Accelerator, Dynamitrone, Cyclotron, Betatron, etc.).
  • chromatographs gas chromatographs,
  • laboratory devices In order to be easily monitored, maintained and cared for, such laboratory devices are typically placed in a laboratory room typically on a table in which people are at the same time to work. Frequently, such laboratory devices cause noise and release heat to the environment. This noise and heat can disturb working people and negatively affect their work. In addition, there are often several such laboratory devices in a single laboratory, so that noise and heat from multiple devices simultaneously affect people who are in the laboratory.
  • noise and heat pollution are well known and explored in several studies. For example, noise that is perceived as a nuisance and persists for an extended period of time can reduce performance and wellbeing and cause stress in the body. This can lead to hypertension (high blood pressure), cardiovascular disease and myocardial infarction (myocardial infarction), or also provide for a reduction in gastric secretion and thus be cause of gastric ulcer. Further consequences due to the effects of noise can be an increased accident risk due to the obscuring of warning signals.
  • auxiliary equipment which causes additional considerable noise and heat immissions.
  • vacuum pumps are used in numerous laboratory equipment, including particle accelerators.
  • auxiliary devices usually need less monitoring, maintenance and care. Often, therefore, they are positioned close to the associated laboratory equipment to allow easy connection to the laboratory equipment, but without requiring special accessibility.
  • a common arrangement is, for example, that the laboratory device on a table and the associated auxiliary device or the associated auxiliary devices are positioned under the same table.
  • the present invention is based on the object to propose a device that reduces noise and heat emissions generated by a laboratory device in laboratories and allows easy monitoring, maintenance and care of the laboratory device.
  • the device comprises a housing with sound-absorbing walls, wherein the housing forms an interior for receiving the laboratory device. At least one of the sound-absorbing walls has an air inlet and the device has an outlet connected to one of the sound-absorbing walls, so that the interior of the housing can be vented via the air inlet and the outlet.
  • the sound generated thereby is absorbed by the walls, so that substantially no or only to a significantly reduced extent noise of the laboratory device can escape from the device.
  • the device may also include buffers to which the laboratory device can be placed to reduce vibrations and sound. So that no noise from the connection between the walls of the device can penetrate, the walls are more or less soundproof connected to each other.
  • the walls and their connections are additionally designed so that substantially no heat generated by the laboratory device can escape from the device.
  • the one air inlet or preferably also through several air inlets flowing into the interior and withdrawn through the exhaust air can be removed from the device produced by the laboratory device waste heat.
  • the trigger can be connected to a vent, such as a building ventilation, so that the waste heat produced by the laboratory device can be discharged from the laboratory without the laboratory itself being warmed up.
  • a vent such as a building ventilation
  • the waste heat can be used at the same time be used to heat air supplied to the building.
  • the trigger preferably has a discharge nozzle arranged on one of the walls.
  • the trigger on a fan wherein the trigger can be configured as a tube in which the fan is arranged. Air can be conveyed out of the interior through the exhaust through the fan, creating a negative pressure in the interior. This negative pressure causes new air is conveyed from outside the device through the air inlet into the interior and a continuous ventilation of the interior takes place.
  • the tube may be designed in the interior so that the air optimally flows through the interior in response to the cooling of the laboratory device.
  • the device has an insulating shell covering the air inlet from the interior of the housing.
  • an insulation shell By means of such an insulation shell, on the one hand air flowing in through the air inlet can preferably be diverted, so that the interior can be vented as effectively as possible and thus also cooled.
  • the insulating shell can thereby design a sound insulation layer arranged on a plate, for example a plate made of metal.
  • the interior is separated by an intermediate wall into a first interior space and a second interior space.
  • the intermediate wall in this case has an air passage, which connects the interior with the second interior.
  • the insulation shell is configured to divert air flowing through the air inlet into the interior, so that the air can be conducted through the air passage and both the first interior and the second interior can be vented via the air inlet and the outlet.
  • a further device can be arranged separately from the laboratory device in the same device, wherein preferably the first inner space is arranged on the second inner space.
  • the laboratory equipment such as a particle accelerator
  • an associated Auxiliary device such as a vacuum pump
  • the laboratory device for monitoring, maintenance and care by a person can be easily accessible.
  • the air inlet is arranged in the region of the second interior.
  • the air passage has at least one inlet passage for passing air from the second interior space into the first interior space and at least one outlet passageway for passing air from the first interior space into the second interior space.
  • the air can be preferably passed through both the first interior and through the second interior and a continuous circulation of air through the first interior and through the second interior can be achieved.
  • the insulation shell comprises a first shell part which covers the air inlet from the second interior, and a second shell part which covers the air passage and in particular its at least one inlet passage from the second interior, the first shell part being sealed to the second shell part.
  • the air can be guided through the air inlet into the second interior, from there along the first shell part and the second shell part via the air passage into the first interior and from there again via the outlet from the first interior.
  • a further insulation shell can also cover the at least one outlet passage from the interior, wherein it can also be connected to the trigger.
  • the discharged via the outlet passage from the first interior exhaust air can be discharged directly from the device without flowing through the second interior and optionally to heat.
  • the housing has a frame and panels disposed therein, which are sealed to the frame. Since laboratory equipment as well as their auxiliary devices are typically relatively heavy, the device is preferably designed stably. With such a framework, the device can be designed to be stable in a simple manner.
  • the frame which is made of steel, for example, can also be partially hollow designed to keep the weight of the device as low as possible.
  • the panels preferably have a wood core set in steel elements, in particular a wood core made from compressed wood.
  • Such panels which are in particular finished with steel plates, on the one hand have preferred sound absorption properties and heat retention properties, and on the other hand enable a stable configuration of the device, so that they are suitable for relatively heavy laboratory equipment.
  • the trigger on a fan which is controllable via a temperature sensor.
  • the temperature sensor is preferably arranged in the interior.
  • a controller controls the speed of rotation of the fan so that more air is delivered through the device when the temperature sensor detects a higher temperature, and so less air can be delivered through the device when the temperature sensor detects a lower temperature.
  • One of the walls of the housing may be configured as a door for opening the interior, wherein preferably at least two of the walls are configured as doors, so that both the first interior and the second interior can be opened.
  • doors which are each designed to be tight in the closed state, the first interior or the second interior can be made accessible in a simple manner. Since the doors can be relatively heavy, for example, if they are made of a set in steel plates wood core, the device has preferably gas springs to assist in opening and closing the door.
  • Rollers for moving the device are advantageously arranged on the housing. Since the device can be very heavy, as described above, for example, about 500 kilograms, and in addition also heavy laboratory equipment and auxiliary devices can be arranged in the device, allow such roles that the device is movable by a person.
  • FIG. 1 is a side view of a first embodiment of an inventive device for reducing noise and heat immissions of a laboratory device in a laboratory room
  • FIG. 2 is a front view taken along the line C-C of the apparatus of FIG. 1;
  • FIG. 3 is a rear view along the line D-D of the device of Fig. 1,
  • FIG. 4 is a sectional view along the line A-A of the device of Fig. 1,
  • FIG. 5 is a sectional view along the line B-B of the device of Fig. 1,
  • FIG. 6 is a sectional view along the line E-E of the device of Fig. 4,
  • FIG. 7 is a side view of a second embodiment of an inventive device for reducing noise and heat immissions of a laboratory device in a laboratory room
  • FIG. 8 is a side view of FIG. 7 opposite side view of the device of Fig. 7,
  • FIG. 9 is a sectional view taken along the line A-A of the device of Fig. 7 and Fig. 8,
  • FIG. 10 is a sectional view taken along the line B-B of the device of Fig. 7 and Fig. 8,
  • FIG. 11 is a front view taken along line CC of the apparatus of FIGS. 7 and 8, and FIG.
  • FIG. 12 is a rear view along the line D-D of the device of Fig. 7 and Fig. 8.
  • FIG. 1 shows a side view of a first exemplary embodiment of a device 1 according to the invention, which has a housing 2 with a frame 23 and panels 24 arranged therein.
  • the panels 24 are connected so tightly to the frame 23 that an upper first inner space 21 and one of which is formed by an intermediate wall (not visible in Fig. 1) separated lower second interior 22 is formed.
  • the illustrated in the side view of Fig. 1 panel 24 of the first interior 21 is designed as a pivot 241 which is pivotable with the aid of two gas springs 5 upwards, so that the first interior 21 can be opened and thus accessible from the side ,
  • an air inlet 3 is arranged, through which air can flow into the second interior 22.
  • the device 1 is shown in a front view, wherein the side view shown in FIG. 1 of the device 1 with the air inlet 3 is located on the right side. Also, in Fig. 2 certain elements which are arranged in the interior of the device 1, shown in phantom.
  • the first inner space 21 is closed towards the front by two panels 24 arranged horizontally next to each other, the right-hand panel 24 being configured as a door 242 fastened to the frame 2 by means of two hinges 243.
  • the opening directions of all doors 242 and all pivot gates 241 are indicated by curved arrows in the drawings.
  • the mentioned door 242 of the first inner space 21 can be opened to the right, so that the first inner space 21 can be opened and is also accessible from the front side.
  • the second inner space 22 is likewise closed towards the front by two panels 24 arranged horizontally next to one another, wherein both panels 24 are designed as doors 242 fastened to the frame 2 by means of two hinges 243 each.
  • the two doors 242 of the second interior 22 are each hinged outwardly, so that the second interior 22 can be opened and is accessible from the front.
  • the panel of the side of the first inner space 21, which is opposite to the side shown in FIG. 1, is designed as a pivot 241.
  • an air passage 8 is configured, which has two edge passages 81 arranged as inlet passages opposite the left and right ends of the device 1 and two central passages 82 as outlet passages arranged in the middle.
  • the air inlet 3 is covered inwardly by a vertical first shell part 61 of an insulating shell 6.
  • the insulation shell 6 has a sheet on which an insulation material is attached.
  • a horizontal second shell part 62 which covers the central passages 82. Downwards is a spaced from the first shell portion 61 designed horizontal third shell portion 63 is arranged.
  • a trigger 4 is further arranged, which comprises a tube 41 which is connected in an air-permeable manner at its one end to the second shell part 62 and opens at its other end in the discharge nozzle 43.
  • a fan 42 is arranged, which is so operatively connected to the tube 41, that by means of the fan 42 air in the direction of the discharge nozzle 43 through the pipe 41 can be promoted.
  • a horizontal buffered base 7 for supporting a device is arranged, by means of which vibrations and sound of a device can be accommodated.
  • Fig. 3 shows the device 1 from its rear side.
  • the first inner space 21 and the second inner space 22 are completed towards the rear by two panels 24 arranged horizontally next to one another.
  • the right-hand panel 24 of the first inner space 21 is designed as a door 242 fastened to the frame 2 by means of two hinges 243, which can be opened to the left , so that the first interior 21 can be opened and is also accessible from the rear side.
  • On the right panel 24 of the second interior 22 of the discharge nozzle 43 is arranged.
  • FIG. 4 shows a view from above into the second interior space 22.
  • the two edge passages 81 and the two central passages 82 each have a grid 811 and 821.
  • FIG. 5 shows a view of the intermediate wall 9, which is tightly connected to the frame 23 and separates the first inner space 21 from the second inner space 22.
  • the intermediate wall 9 in each case has a perforated grid 812 and 822 arranged adjacent to the grids 811 of the edge passage 81 and adjacent to the grids 821 of the central passage 82.
  • the intermediate wall 9 cable passages 91 and line passages 92 by means of which cable or lines tightly the first inner space 21 can be arranged to connect with the second inner space 22.
  • Fig. 6 the embodiment of the trigger 4 is shown, wherein the tube 41 is connected to the second shell part 62 permeable to air and opens into the discharge nozzle 43.
  • a laboratory device such as a particle accelerator
  • the laboratory device in the first interior 21 may be disposed on the intermediate wall 9 and an auxiliary device, such as a vacuum pump, on the base 7 in the second interior space 22 via the cable passages 91, the laboratory device sealed be wired with the auxiliary device, which may be necessary, for example, to control the performance of the auxiliary device.
  • the auxiliary device can be tightly operatively connected to the laboratory device.
  • a vacuum line can be laid from the vacuum pump to the particle accelerator, via which a vacuum required for the operation of the particle accelerator can be generated in the particle accelerator by means of the vacuum pump. Due to the described embodiment of the housing 2 in the region of the first interior 21, the first interior 21 of the device 1 can be opened from all sides.
  • the laboratory device can be accessed from all sides, which is important for easy monitoring, maintenance and care of the laboratory device.
  • the device 1 Since laboratory equipment and its auxiliary devices are typically relatively heavy, the device 1 is made solid and stable.
  • the frame 23 is made of hollow steel girders and the panels 24 of compressed-wood slabs set in steel plates. In addition to the mentioned advantageous carrying properties of such panels, such panels also absorb a relatively large amount of sound and are relatively poorly heat-permeable so that essentially no waste heat and noise from the laboratory apparatus and the auxiliary device can exit the device through the closed housing 2.
  • the air inlet 3 of the device 1 is covered by the insulating shell 6, also the exiting through the air inlet 3 noise and exiting through the air inlet 3 heat can be minimized.
  • heated air is conveyed through the central passage 82, the pipe 41 and the discharge nozzle 43 out of the first inner space 21 and out of the device 1 by means of the fan 42.
  • a steady air circulation in the device 1 can be ensured, whereby the laboratory device and the auxiliary device can be cooled.
  • the withdrawal nozzle 43 is connected directly to the building ventilation, so that no waste heat in the laboratory space in which the device 1 is, can get.
  • FIG. 7 shows a side view of a second exemplary embodiment of a device 10 according to the invention, which has a housing 20 with a frame 230 and panels 240 arranged therein.
  • the panels 240 are connected so tightly to the frame 230 that an upper first inner space 210 and one of them separated by an intermediate wall (not visible in FIG. 7) lower second inner space 220 is formed.
  • the panel 240 of the interior 21 shown in the side view of FIG. 7 is designed as a door 2420 fastened to the frame 230 by means of two hinges 2430, which can be opened to the right in accordance with the curved arrow so that the first interior 210 can be opened and thus from This page is accessible.
  • a gas spring 50 is arranged, with the aid of which the pivot 2410 shown in FIG. 11 can be opened.
  • an air inlet 30 is arranged, through which air can flow into the second interior 220.
  • the device 10 On the right side of the side view of FIG. 7, the device 10 has a drain neck 430 projecting beyond the housing 20.
  • FIG. 8 shows one side of the device 10 opposite the side view shown in FIG 7 is configured analogously to the side of the device 10 shown in FIG. 7, except that the first inner space 210 is closed by two panels 240 arranged horizontally next to one another.
  • the right of these two panels 240 is in this case designed as a door 2420 fastened to the frame 230 by means of two hinges 2430, which can be opened to the right in accordance with the curved arrow, so that the first interior 210 can be opened and thus accessible from this side as well.
  • the two doors 2420 each have cable passages 2440.
  • FIG. 9 shows the second inner space 220 from above, in which two vertical first shell parts 610 each covering one of the two air inlets 30 are arranged, which are in each case tightly connected to a horizontal outer second shell part 620a.
  • a central second shell part 620b is arranged in the middle of the device 10.
  • a grid 8110 is arranged in each case.
  • two parallel arranged grids 8210 are arranged in the second interior 220 .
  • a trigger 40 is further arranged with a tube 410.
  • the tube 410 is permeable to air with the central second shell portion 620b and connected to the exhaust nozzle 430.
  • a fan 420 is arranged on the tube 410, by means of which air can be conveyed through the tube 410 from the central second shell part 620b out of the outlet connection 430.
  • FIG. 10 shows a view of an intermediate wall 90 which is connected closely to the frame 230 and which separates the first inner space 210 from the second inner space 220.
  • the intermediate wall 90 has respective perforated grids 8120 and 8220 arranged adjacent to the grids 8110 and 8210.
  • FIG. 11 shows the front side and FIG. 12 shows the rear side of the device 10.
  • the first inner space 210 is closed on the front side of the device 10 and on the rear side of the device 10 by two horizontally adjacent panels 240.
  • the right panel 240 is configured on the front side as a pivot 2410 and the left panel 240 on the front side and the right side Panel 240 of the rear as in each case by means of two hinges 2430 attached to the frame 230 doors 2420.
  • the second interior 220 is also on the front of the device 10 and on the rear side of the device 10 by two horizontally adjacent panels 240 completed.
  • the right-hand panel 240 on the front side and the two panels 240 on the rear side are each configured as doors 2420 fastened to the frame 230 by means of two hinges 2430.
  • the two air inlets 30 are each covered by one of the two first shell parts 610 of an insulation shell 60.
  • the left of the two first shell parts 610 is connected at its lower end tightly connected to a horizontal third shell part 630 and the right of the two first shell parts 610 is spaced at its lower end connected to another horizontal third shell part 630.
  • an air passage 80 is arranged, which has two lateral edge passages 810 and two central central passages 820.
  • the two outer second shell parts 620a each cover one of the two edge passages 810 and the central second shell part 620b the two central passages 820.
  • a laboratory apparatus such as a particle accelerator may be disposed in the first internal space 210 on the intermediate wall 90 and an auxiliary apparatus such as a vacuum pump may be disposed in the second internal space 220 of the housing 20 in the region of the first interior 210, the first interior 210 of the device 10 can be opened from all sides.
  • the laboratory device can also be accessed from all sides, which in turn can be important for easy monitoring, maintenance and care of the laboratory device.
  • the massive sound-absorbing and heat-impermeable configuration of the frame 20, the panel 240 and the insulating shell 60 is carried out according to the first embodiment.
  • first inner space 210 and the second inner space 220 For cooling the first inner space 210 and the second inner space 220, air heated by means of the fan 420 is conveyed through the central passage 820, the pipe 410 and the exhaust pipe 430 out of the first inner space 210 and out of the device 10.
  • a steady air circulation in the device 10 can be ensured, whereby the laboratory device and the auxiliary device is cooled.
  • the vent 430 is connected directly to the building ventilation, so that no waste heat in the laboratory space in which the device 10 is, can get.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ventilation (AREA)
  • Control Or Security For Electrophotography (AREA)
EP07405276A 2006-09-18 2007-09-13 Dispositif destiné à la diminution d'émissions de bruit et de chaleur Withdrawn EP1900885A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH14782006 2006-09-18

Publications (2)

Publication Number Publication Date
EP1900885A2 true EP1900885A2 (fr) 2008-03-19
EP1900885A3 EP1900885A3 (fr) 2008-11-26

Family

ID=37663117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405276A Withdrawn EP1900885A3 (fr) 2006-09-18 2007-09-13 Dispositif destiné à la diminution d'émissions de bruit et de chaleur

Country Status (2)

Country Link
US (1) US7784584B2 (fr)
EP (1) EP1900885A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104914160A (zh) * 2015-06-05 2015-09-16 国家电网公司 用于降噪材料的测试平台
CN107019353A (zh) * 2017-03-14 2017-08-08 成都方寸家居有限公司 一种新型智能电视柜

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US3815965A (en) * 1972-10-10 1974-06-11 Smith & Co Inc Gordon Air compressor housings
US4264282A (en) * 1979-01-03 1981-04-28 K. C. Mosier Company Air compressor apparatus including noise-reducing means
US4461666A (en) * 1980-05-12 1984-07-24 Baltek Corporation Contoured balsa-core laminate
JPH02231797A (ja) 1989-03-06 1990-09-13 Asia Electron Inc 電子機器の冷却機構
US5123874A (en) * 1990-10-09 1992-06-23 White Iii Thomas B Knock-down sound attenuating system
JP3866779B2 (ja) * 1995-02-20 2007-01-10 株式会社日立産機システム ブロワの防音装置
JP3569890B2 (ja) * 2000-06-22 2004-09-29 デンヨー株式会社 防音型エンジン駆動作業機
US6447264B1 (en) * 2001-02-05 2002-09-10 Ingersoll-Rand Company Compressor system
US6481527B1 (en) * 2001-03-14 2002-11-19 Emc Corporation Methods and apparatus for attenuating noise from a cabinet that houses computer equipment
GB0314784D0 (en) * 2003-06-25 2003-07-30 Scrivener Rhys Sound attenuating apparatus for machinery
US7331532B2 (en) * 2004-06-09 2008-02-19 Nortel Networks Limited Acoustic noise reduction using fan speed control
JP4410698B2 (ja) * 2005-02-17 2010-02-03 株式会社エヌ・エル・エム・エカル 電子機器収容箱
US20080053746A1 (en) * 2006-08-30 2008-03-06 Albert Roger W Noise reduction shroud

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104914160A (zh) * 2015-06-05 2015-09-16 国家电网公司 用于降噪材料的测试平台
CN107019353A (zh) * 2017-03-14 2017-08-08 成都方寸家居有限公司 一种新型智能电视柜

Also Published As

Publication number Publication date
US20080066996A1 (en) 2008-03-20
US7784584B2 (en) 2010-08-31
EP1900885A3 (fr) 2008-11-26

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