EP2107248A2 - Procédé d'intégration d'un balayeur de pression dans le boîtier d'un ventilateur - Google Patents

Procédé d'intégration d'un balayeur de pression dans le boîtier d'un ventilateur Download PDF

Info

Publication number
EP2107248A2
EP2107248A2 EP09002282A EP09002282A EP2107248A2 EP 2107248 A2 EP2107248 A2 EP 2107248A2 EP 09002282 A EP09002282 A EP 09002282A EP 09002282 A EP09002282 A EP 09002282A EP 2107248 A2 EP2107248 A2 EP 2107248A2
Authority
EP
European Patent Office
Prior art keywords
pressure
housing
measuring
pressure chamber
pipe
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Withdrawn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
EP09002282A
Other languages
German (de)
English (en)
Other versions
EP2107248A3 (fr
Inventor
Alexander Bleiholder
Roland Dr. Keber
Rudolf Tungl
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.)
Ebm Papst Landshut GmbH
Original Assignee
Ebm Papst Landshut GmbH
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 Ebm Papst Landshut GmbH filed Critical Ebm Papst Landshut GmbH
Publication of EP2107248A2 publication Critical patent/EP2107248A2/fr
Publication of EP2107248A3 publication Critical patent/EP2107248A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips

Definitions

  • the invention relates to a method for integrating at least one pressure sensor in the pressure chamber of a housing produced in the casting / die casting method of a blower.
  • the pressure sensor is in the form of a projecting into the pressure chamber tube, on which in particular a directed against the direction of flow pressure opening is provided.
  • blowers are used in particular for gas flow heaters, which are supplied by the fan with the combustion air.
  • the blower is usually a radial fan with a spiral pressure chamber.
  • the prior art In order to generate the pressure difference, the prior art often uses a Venturi nozzle or other tubes, which are arranged in the pressure chamber of the housing in front of the outlet.
  • Such pressure sensors provide a pressure signal which, depending on the delivered volumetric flow rate of the blower, to a pressure cell of a terminal, e.g. a calorific value device initiates a setting process. For common heating appliances, this signal is provided as an analogue signal. This analog signal is then applied directly to the pressure cell. At too low pressures or flow rates, which may be caused for example by blockages in the chimney (bird's nesting effect, strong throttling of the fan), the fan no longer provides the required amount of air for safe combustion. If then falls below a predetermined lower pressure value, the pressure cell switches off the terminal. In this way, no unburned gas is pumped out of the device, so that no unwanted deflagration or explosions can occur.
  • disturbances in the switching behavior can also occur if the control pressure is not sufficiently high due to inaccurate alignment of the pressure sensing devices, e.g. by a rotation of a total pressure sensing device out of the flow axis. This can be done by inaccurate work or in the course of operation.
  • the invention has for its object to provide a method for integrating a pressure sensor in the pressure chamber of a housing produced by casting / die casting, which manages without high additional assembly and material costs.
  • the invention has for its object to improve a housing so that the integration of a pressure transducer in the pressure chamber of a casting / die casting made housing without high additional assembly and material costs can be done and this pressure sensor reliably always delivers correct values.
  • the object is achieved by a method for integrating a device for measuring the pressure in the pressure chamber of a housing produced in the casting / die casting process for a fan with at least one pressure sensor on which in particular a directed against the direction of flow pressure opening is achieved in that the pressure sensor is formed in the casting mold of the housing, the pressure opening is formed on the mold in the area of the pressure transducer, a connection for a signal generator is made on the outside of the housing, and all said elements are formed integrally with the housing.
  • the further object is achieved with a housing for a blower, in particular for use in fan-assisted atmospheric gas heaters, with a pressure chamber and a fan arranged therein, and arranged in a side wall means for measuring the pressure in the pressure chamber, achieved in that the device for measuring the pressure in the pressure chamber and the housing wall are made in one piece and in one piece.
  • the invention offers significant advantages over the prior art.
  • the in situ casting method also makes it possible to use a housing half with cast-on pressure sensors without further reworking at the pitot pressure opening, whereby a large cost savings is achieved.
  • the storage of such probes, as used in the prior art completely eliminated.
  • the pressure sensor is designed as a dynamic pressure pipe which extends into the pressure chamber and on the outside of the housing wall a pipe socket for attaching a hose connection with a pressure cell wherein two mutually oppositely movable slides are used in the mold for the tube interior.
  • long pipe socket can be formed to run the pipe socket sufficiently long even with large enclosures without casting difficulties, so that the pitot tube opening can always be placed in the place of greatest efficiency, on the other hand, on the outside of the housing of the connecting piece for attachable cable also be sufficiently dimensioned so that a plugged hose can be securely attached.
  • the device for measuring the pressure may have at least one dynamic pressure pipe for measuring the total pressure P, which projects into the pressure chamber and is in flow communication with a pressure measuring cell.
  • the dynamic pressure pipe consists of a straight piece of pipe, which is arranged substantially at right angles to the housing wall.
  • a further advantageous embodiment is the fact that the pipe section is equipped at the free end with an obliquely arranged pressure opening.
  • the device for measuring the pressure has at least one further pressure measuring point in the form of a differential pressure transducer, which is also in flow communication with the pressure measuring cell.
  • the housing may be designed such that the differential pressure transducer has a ramp rising on the housing wall in the flow direction, behind which a differential pressure opening is formed.
  • FIG. 1 is a perspective view of a blower 1 according to the prior art shown.
  • the illustration gives a view through the outlet opening in the pressure chamber 3 in the housing 2 of the blower 1 again.
  • a pressure pickup 4 can be seen in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 in the pressure chamber 3 is a pressure pickup 4 can be seen.
  • the pressure pickup assembly 4 is formed as Venturi 10 and fixed with a screw 11 to the wall 2 'of the housing 2.
  • two ports 12 ', 12 are provided which are in fluid communication with respective ports disposed on the venturi 12. The passage of these ports 12', 12" through the wall 2 'of the housing 2 requires an additional seal.
  • Fig. 2 shows a perspective view of an embodiment of a blower 1 according to the invention with the lower housing wall removed, whereby the view is free on the interior of the housing 2, a fan 9 and a pressure chamber 3.
  • a device for measuring the pressure in the pressure chamber 3 is formed, which is formed in the illustrated embodiment as a tubular pressure-receiving device 4.
  • the Druckêtan extract 4 consists of a dynamic pressure tube 5 with obliquely to the tube axis extending pitot tube pressure port 5 'and a Differenzdruckaufillon 6. Both the dynamic pressure tube 5 and the Differenzdruckaufsacrificing 6 are cast as a pipe socket in situ with the housing half 2' in a casting.
  • the respective pipe socket of the dynamic pressure tube 5 and the Differenzdruckaufillons 6 with respect to the outlet air flow from the fan for a distance A axially behind the other and radially offset from one another laterally to each other, wherein the distance A and the offset D are sufficiently large to from the Differential pressure sensor 6 generated disturbances not to reach the pitot tube pressure port 5 'of the dynamic pressure pipe 5.
  • Fig. 2a is a view of a section 2a-2a in FIG Fig. 2 shown.
  • the dynamic pressure pipe 5 is formed in this embodiment as a straight piece of pipe and protrudes to about half of the pressure chamber width in the pressure chamber 3 inside.
  • the pipe section of the differential pressure sensor 6 with the differential pressure opening 7 formed thereon is shorter and extends approximately one third of the pressure chamber width between the housing walls into the pressure chamber 3.
  • the differential pressure opening 7 may occupy a slightly inclined in the flow direction backward position, so that caused by the air flow, a negative pressure and thus a greater spread in the differential pressure is achieved.
  • the tube channels 17 and 20 for the dynamic pressure tube 5 and the Differenzdrucketzillon 6 are not generated in the illustrated embodiment, not by a single conical slide, but by two abutting slide, which each have the outer channel 18 and inner channel 19 of the dynamic pressure tube 5 and the outer channel 21st and form the inner channel 22 of the Differenzteiletzillons 6.
  • At its abutment surface forms a partition wall 13 and 14, which can be removed after casting.
  • the respective slide are formed so that a partition does not arise.
  • Fig. 3 shows a perspective view of the embodiment Fig. 2 When the fan is closed 1 with a plan view of the outlet opening in the pressure chamber 3. It can be seen the different height of the projecting into the pressure chamber 3 tubes of the Druckabêtan extract 4 as well as the radial lateral distance of the two pipe sockets.
  • the Fig. 4a and 4b each show a detailed representation of a further embodiment of arrangements of the differential pressure sensor 6 on the housing wall 2 '.
  • the in Fig. 4a represented Differenzdruckauf choir 6 consists of a simple opening, preferably with a circular cross-section in the housing wall 2.
  • On the outside of the pipe socket 16 projects outwardly to provide a flow connection to the pressure cell.
  • Such an embodiment has the advantage that only one slide for the pipe channel 18 is required.
  • a ramp 8 is formed in the region in front of the differential pressure port 7 to generate a negative pressure area behind the ramp 8.
  • a variant of the leadership of the pipe channel is indicated by the reference numeral 20 '. Such a variant also avoids a double slide design for the tube channel 20, since it runs in a straight line and also offers the advantage of the ramp effect for the air flow.
  • the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a number of variants are conceivable, which of the illustrated solution even with fundamentally different Designs makes use.
  • the pressure pickup 5 it is also possible to form the pressure pickup 5 as a protrusion projecting on the wall, at the front side of which the pitot tube pressure opening 5 'is formed on an inclined surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
EP09002282.3A 2008-04-03 2009-02-18 Procédé d'intégration d'un balayeur de pression dans le boîtier d'un ventilateur Withdrawn EP2107248A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810017536 DE102008017536A1 (de) 2008-04-03 2008-04-03 Verfahren zur Integration eines Druckabnehmers in das Gehäuse eines Gebläses

Publications (2)

Publication Number Publication Date
EP2107248A2 true EP2107248A2 (fr) 2009-10-07
EP2107248A3 EP2107248A3 (fr) 2014-06-11

Family

ID=40716977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09002282.3A Withdrawn EP2107248A3 (fr) 2008-04-03 2009-02-18 Procédé d'intégration d'un balayeur de pression dans le boîtier d'un ventilateur

Country Status (2)

Country Link
EP (1) EP2107248A3 (fr)
DE (1) DE102008017536A1 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110070818A1 (en) * 2009-09-24 2011-03-24 Lennox Industries Inc. Air blower validator, an hvac system and a method of manufacturing an hvac system
GB2487250A (en) * 2011-01-25 2012-07-18 Cummins Ltd Compressor with sensor
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US20210290873A1 (en) * 2009-08-11 2021-09-23 Resmed Motor Technologies Inc. Single stage, axial symmetric blower and portable ventilator
US11998690B2 (en) * 2020-11-03 2024-06-04 Resmed Motor Technologies Inc. Single stage, axial symmetric blower and portable ventilator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555673A1 (de) * 1975-08-12 1977-04-28 Nordisk Ventilator Verfahren und vorrichtung zur erkennung des arbeitens von axialgeblaesen im abreissgebiet
EP0774583A1 (fr) * 1995-11-14 1997-05-21 Grundfos A/S Carter pour une pompe centrifuge
US6126392A (en) * 1998-05-05 2000-10-03 Goulds Pumps, Incorporated Integral pump/orifice plate for improved flow measurement in a centrifugal pump
EP1865205A2 (fr) * 2006-06-07 2007-12-12 Ln 2 - S.R.L. Dispositif de support pour les capteurs de pression arrangés dans les chambres de pression des ventilateurs centrifuges, particulièrement pour les hottes de ventilation ou les extracteurs de fumées

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555673A1 (de) * 1975-08-12 1977-04-28 Nordisk Ventilator Verfahren und vorrichtung zur erkennung des arbeitens von axialgeblaesen im abreissgebiet
EP0774583A1 (fr) * 1995-11-14 1997-05-21 Grundfos A/S Carter pour une pompe centrifuge
US6126392A (en) * 1998-05-05 2000-10-03 Goulds Pumps, Incorporated Integral pump/orifice plate for improved flow measurement in a centrifugal pump
EP1865205A2 (fr) * 2006-06-07 2007-12-12 Ln 2 - S.R.L. Dispositif de support pour les capteurs de pression arrangés dans les chambres de pression des ventilateurs centrifuges, particulièrement pour les hottes de ventilation ou les extracteurs de fumées

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210290873A1 (en) * 2009-08-11 2021-09-23 Resmed Motor Technologies Inc. Single stage, axial symmetric blower and portable ventilator
US20110070818A1 (en) * 2009-09-24 2011-03-24 Lennox Industries Inc. Air blower validator, an hvac system and a method of manufacturing an hvac system
US9273693B2 (en) 2011-01-25 2016-03-01 Cummins Ltd. Compressor comprising a sensor arrangement
GB2487250A (en) * 2011-01-25 2012-07-18 Cummins Ltd Compressor with sensor
GB2487250B (en) * 2011-01-25 2017-04-26 Cummins Ltd Compressor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US11998690B2 (en) * 2020-11-03 2024-06-04 Resmed Motor Technologies Inc. Single stage, axial symmetric blower and portable ventilator

Also Published As

Publication number Publication date
EP2107248A3 (fr) 2014-06-11
DE102008017536A1 (de) 2009-10-08

Similar Documents

Publication Publication Date Title
EP2107248A2 (fr) Procédé d'intégration d'un balayeur de pression dans le boîtier d'un ventilateur
DE2133422C3 (de) Mehrstufiges Druckreduzierventil
DE19827992C2 (de) Vorrichtung zum Verbinden einer Volumenstrom-Messeinrichtung mit einer flüssigkeitsführenden Rohrleitung
EP3173538B1 (fr) Dispositif de raccordement
EP0350017B1 (fr) Obturateur avec indicateur de fuite
EP0943901A1 (fr) Raccord pour un dispositif de mesure de débit d'un liquide
DE10130194C2 (de) Verfahren zum Anschluß eines Heizkörpers an ein Versorgungsleitungssystem sowie Heizkörper
DE3100565C2 (de) Vorrichtung zur Abdichtung einer unter Druck stehenden Rohrleitung
DE289676C (fr)
DE3704130C2 (de) Gasbeheizter Wassererhitzer mit einer geschlossenen Verbrennungskammer
DE4441617C1 (de) Filteranordnung
AT209065B (de) Einrichtung zum Anschließen eines Gas- oder Wasserzählers an eine Rohrleitung
DE4007279C2 (de) Anschlußvorrichtung für Einstutzen-Gaszähler
EP3064850B1 (fr) Systeme regulateur de debit
DE19726864B4 (de) Vorrichtung zum Messen des Abluftvolumenstroms in einem Abzug
DE3247478C2 (fr)
EP3064854B1 (fr) Systeme regulateur de debit
DE1529193C (de) Gas/Luft-Mischvorrichtung für Gasherde
DE202006009648U1 (de) Verteilerarmatur für Hauswasserinstallationen
DE2143767A1 (de) Einrichtung an Radiatoren von Warmwasser-Zentralheizungsanlagen
DE2707779B2 (de) Belüftungsrohr sowie Anordnung desselben in einem Wohnwagen
DE19737720B4 (de) Verfahren und Vorrichtung zur Herstellung einer Flüssigkeitsleitung mit einem eingebauten Funktionsbauteil
DE102013001045B4 (de) Luftfilteranordnung
DE2033000C (de) Vorrichtung zum Durchblasen der Leitungen, die das Gehäuse des Wasserstandsreglers und/oder der Wassermangelsicherung eines Dampfkessels mit dessen Dampf- und Wasserraum verbinden
DE1728401C (de) Rohrkupplung für eine Staubsauger-Rohrleitung. Ausscheidung aus: 1428441

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 29/42 20060101AFI20140505BHEP

Ipc: F04D 29/52 20060101ALI20140505BHEP

AKY No designation fees paid
AXX Extension fees paid

Extension state: AL

Extension state: BA

Extension state: RS

REG Reference to a national code

Ref country code: DE

Ref legal event code: R108

REG Reference to a national code

Ref country code: DE

Ref legal event code: R108

Effective date: 20150218

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20141212