WO2009133333A1 - Curie- faraday power pads - Google Patents

Curie- faraday power pads Download PDF

Info

Publication number
WO2009133333A1
WO2009133333A1 PCT/GB2008/001549 GB2008001549W WO2009133333A1 WO 2009133333 A1 WO2009133333 A1 WO 2009133333A1 GB 2008001549 W GB2008001549 W GB 2008001549W WO 2009133333 A1 WO2009133333 A1 WO 2009133333A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
faraday
piezo
subject
vibration
Prior art date
Application number
PCT/GB2008/001549
Other languages
French (fr)
Inventor
Anthony Edwin Botsman
Original Assignee
Tungsten Blue Technologies Ltd
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 Tungsten Blue Technologies Ltd filed Critical Tungsten Blue Technologies Ltd
Priority to PCT/GB2008/001549 priority Critical patent/WO2009133333A1/en
Publication of WO2009133333A1 publication Critical patent/WO2009133333A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • H02N2/186—Vibration harvesters

Definitions

  • the invention involves the collection and transformation of kinetic energy occurring at any point of repeated impact or vibration, into electrical energy.
  • the collection and transformation is achieved from the combined effect of the impact or vibration on (i) piezo electric materials as elucidated by the Brothers Curie in 1888 and (ii) the combination of such ' Piezo 1 energy with the output from oscillation of electromagnetic coils within coils according to Faraday's induction principles set out in 1831.
  • the field of the invention extends to any industrial, road , rail or transport vehicle environment where it is possible and desirable to move from devices or environments providing passive absorption of vibration or impact to devices which convert such kinetic energy into electrical energy.
  • the energy and signal output may be used to confirm the integrity of the track environment many kilometres ahead of a high speed train.
  • the subject inventive concept termed the Faraday-Curie power pad, relies upon the effect of impacts between two masses to generate electrical energy from the said impacts on Piezo electrical material such as PZT or PVDF incorporated in a suitable elastomeric substrate.
  • Piezo electrical material such as PZT or PVDF incorporated in a suitable elastomeric substrate.
  • the energy thus generated is applied directly to the outer circuit of two Faraday coils, one within the other thus inducing an intensified magnetic field in the outer coil according to Faraday's principles.
  • the fundamental advantage of the subject invention is the capacity to combine the energy harvested by piezo electric material from vibration across a wide range of frequencies with the 'Faraday' electrical energy from the oscillation associated with such vibration.
  • the combination above moves the quantum of power output from signal or low energy lighting measured in micro watts to a utility level scalable to kilowatts per hr depending on the application site and the force, frequency and extent of oscillation.
  • the forms of the invention disclosed herein provide the additional benefit of absorbing vibration and damping oscillation but achieve this in large part from the transformation of such kinetic energy into electrical current as opposed to the passive absorption in existing alternative systems.
  • the intensity and concentration of Piezo active material and of Faraday coils can be increased or decreased to match the energy characteristics so as to optimise both absorption of kinetic energy and it's transformation into electrical current.
  • a related benefit is the capacity to generate a compound signal as the electrical outputs are directly proportional to the force and frequency of impacts and in this way provide the capacity to monitor any abnormality in operating parameters.
  • Drawing 1 provides a schematic representation of a Faraday Curie Power pad device akin to an anti vibration device which comprises an outer shield of rigid insulation material (1 ) elastomeric conductive substrate (2 ) which contains an optimum concentration of piezo active crystals poled after inclusion in the direction indicated).
  • the schematic also indicates the presence of piezo active films or fabric (6) layered to provide for collection of piezo energy from ( 2 ) and to collect piezo energy from it's own crystalline inclusions and finally to conduct such combined energy to the outer of the Faraday coils indicated as (3 )
  • the inner Faraday coils indicated as (4) are comprised of dense segmented windings of insulated copper wire about a flexible core of metallicized, conductive, permeable polymer.
  • Metallic inclusions are alloyed for maximum permeability and arranged to allow free independent movement of ( 3 ) outer coils by virtue of non conductive spacers (5) which maintain an air gap between (3 ) and ( 4 ); these spacers optimise the generation of current from the movement of outer coils energised by Piezo current, over inner coils about a core with metallic inclusions as described.
  • the outer Faraday coils indicated as (3) comprise of dense windings of insulated copper about a semi flexible conductive tube which incorporates either Neodymium or Samarium cobalt elements magnetised as indicated.
  • the inner coils (4) are fixed to a neutral surface which is as far as possible independent of the impacts on the substrate (2 ) such that the outer coils (3 ) will move relative to inner coils (4) as a consequence of each impact and partial deformation of the substrate.
  • a current from each of the coil assemblies will result from the movement above according to Faradays principles of induction .
  • Drawing 2 provides a schematic representation of a Faraday Curie device akin to a shock absorber which comprises end caps (land 9 ), a coil spring or alternatively an air spring pre inflated to a pressure appropriate to design loads(2 and 10).
  • An outer frame (8 ) is represented as a cylinder containing a compressible elastomeric substrate (7 ) which in turn contains both piezo active crystals ( 6 ) and a densely wound array of Piezo active fibre or threads (5) .
  • Drawing 2 also indicates the presence of inner ( 3 ) and outer ( 4 ) Faraday coils whereby the outer coils are contained within the body of the outer frame (8 ) surrounded by the conductive elastomeric substrate( 7 ).
  • the inner coils (3 ) are attached to the upper end cap(l ) but not the lower end cap (9) which is connected to the outer frame
  • the energy thus created and indicated as current(a) is transferred to the poles of the outer coils with the effect of intensifying the magnetic field about such coils according to established electromagnetic principles and in turn amplifying the electrical current(A,a) derived from the movement of inner coils ( 3 ) within outer coils (4 ) .
  • each impact or action as described above will generate an equal and opposite reaction from the coil or air spring in concert with the compressible substrate.
  • the reaction will generate Faraday power as the reaction force causes the end cap to move to it's starting position moving inner coils ( 3 ) within outer coils ( 4 ) in consequence.
  • Incorporation of a suitable capacitor between the Piezo output and the outer coil circuits will 'spread' the Piezo energy over both action and reaction movement.
  • the intensity of the windings about inner and outer coils can also be increased or decreased with similar effects. It is also the case that the number of coil assemblies that are active in the device can be regulated by way of relays activated remotely and/or wirelessly via appropriate signal frequency. Any such variation above can be used to instantaneously match the capacity of the device to the dynamics of the application thus simultaneously optimising kinetic energy absorption and electrical energy output.

Landscapes

  • Vibration Prevention Devices (AREA)

Abstract

A concept is disclosed and embodied in two exemplar devices capable of transforming kinetic energy in the form of vibrational and other impacts into electrical energy from a combination of piezo active materials and electro magnetic fields according to Faraday's principles. The combination of separate, additive power sources optimises conversion of kinetic energy into electrical energy which is usable and valuable in a number of transport systems both in place of existing vibration mounts and shock absorbers on vehicles and on railway, bridge and road surfaces separate to use on vehicles. The disclosed devices are exemplars of use on vehicles however the concept and system has wider application in any environment where absorption of kinetic energy is possible, practical and desirable for conversion and recovery of electrical energy.

Description

PCT Patent application
Title: Curie- Faraday Power Pads
An inventive concept for the transformation of kinetic energy from impacts or vibration, into electrical energy from a combination of piezo active material as illuminated by the Brothers Curie and electromagnetic fields according to Faraday's principles.
Description
Field of the Invention
(01 ) The invention involves the collection and transformation of kinetic energy occurring at any point of repeated impact or vibration, into electrical energy. The collection and transformation is achieved from the combined effect of the impact or vibration on (i) piezo electric materials as elucidated by the Brothers Curie in 1888 and (ii) the combination of such ' Piezo1 energy with the output from oscillation of electromagnetic coils within coils according to Faraday's induction principles set out in 1831. The field of the invention extends to any industrial, road , rail or transport vehicle environment where it is possible and desirable to move from devices or environments providing passive absorption of vibration or impact to devices which convert such kinetic energy into electrical energy.
Sheet 2. Description (continued) Background of the invention
(002) The collection of energy from points of impact and/ or vibration is of practical benefit wherever such energy can be re used and wherever it is desirable to transform the subject kinetic energy into electrical energy. Suspension systems in all forms of road and rail transport are examples as are the surfaces on which such systems operate including bridges and all forms of suspended operating surfaces such as bridges and turnpikes.
Within road or rail environments there are now many opportunities to use such regenerative energy especially in hybrid, all electric or fuel cell powered vehicles where both electric storage systems and electric drive systems can be found.
Within the operating environment for road and rail systems there is ample opportunity to use regenerative power for lighting and signalling and in the case of supported structures for monitoring and signalling of any abnormal deformation from impact as a pre cursor of possible structure failure . In the rail environment the energy and signal output may be used to confirm the integrity of the track environment many kilometres ahead of a high speed train.
In all of the above the subject designs present the opportunity to decrease dependence on traditional energy sources and in most cases, the opportunity to reduce dependence on fossil fuels and decrease emissions from same.
(003) There are many hundreds of examples where the generation of piezo electrical energy is used to generate a quantum of energy sufficient for signal quality output including that disclosed in WO 2007 106057 ,Adamson et. al. which relates to the use of energy from strains in a vehicles suspension into electrical energy sufficient to generate signals as to the status of various suspension related functions.
(004) There are other precedents for the collection of energy from suspension systems providing a quantum of energy sufficient for purposes beyond signal generation such that this level of energy might be termed utility power to distinguish it adequately from signal level power as described above. Goldner et.al (WO 02/091552 A3) discloses such systems which are based on Faraday's induction principles and which are capable of generating utility level power from designs based on shock absorbers. Similar designs for automotive applications were patented as early as 1908. Sheet 3> Description (continued) Summary of the Invention
(005) The substantial and long standing prior art is recognized and acknowledged as providing highly effective and useful signal level outputs on the one hand and a single source of utility level power on the other. The subject design involves the combination of piezo level power with current from a system based on Faraday's principles of electromagnetic induction such that the former potentiates and perhaps synergises the latter.
(006) The generation of electrical energy from Piezo active materials is well documented and extensively utilized since discovery by the Brothers Curie in 1888. Recent developments, most notably at Advanced Cerametrics Industries in the USA and the Fraunhofer Institute in Germany, have advanced the yield of piezo energy by factors of up to 100 times previous best results with outputs now measureable in watts rather than micro watts.
(007) Parallel developments in ultra powerful rare earth magnets using Neodymium and Samarium Cobalt alloys have concentrated the potential generation of energy based on electro magnetic field principles illuminated by Faraday.
(008) The subject inventive concept, termed the Faraday-Curie power pad, relies upon the effect of impacts between two masses to generate electrical energy from the said impacts on Piezo electrical material such as PZT or PVDF incorporated in a suitable elastomeric substrate. The energy thus generated is applied directly to the outer circuit of two Faraday coils, one within the other thus inducing an intensified magnetic field in the outer coil according to Faraday's principles.
(009) The same impacts which compress the substrate also cause a simultaneous deformation proportionate to the force and extent of the energy source. With the internal coils mounted to a neutral or unrelated surface, the outer coils will be forced to move over the inner coils in consequence of each impact. Both the action of such impacts and the equal and opposite reaction from the elastomeric substrate material will cause the relative movement described above and in consequence a current will be generated proportional to the rate of movement, the length of the fields through which movement occurs and the intensity of the flux about such fields according to Faraday.
(010) Since the impact on the piezo active material and the movement of the Faraday coils is simultaneous, the amplification of flux about the coils from Piezo energy will increase the generation of Faraday current from such movement.
(01 1 ) The same cause and effect which applies in the horizontal plane as illustrated by drawing (I) A device akin to an anti vibration mount, also applies in the vertical plane as illustrated by drawing 2, a device akin to a shock absorber. Sheet if Description (continued) Advantages
(012) The fundamental advantage of the subject invention is the capacity to combine the energy harvested by piezo electric material from vibration across a wide range of frequencies with the 'Faraday' electrical energy from the oscillation associated with such vibration. The combination above moves the quantum of power output from signal or low energy lighting measured in micro watts to a utility level scalable to kilowatts per hr depending on the application site and the force, frequency and extent of oscillation.
(013) The forms of the invention disclosed herein provide the additional benefit of absorbing vibration and damping oscillation but achieve this in large part from the transformation of such kinetic energy into electrical current as opposed to the passive absorption in existing alternative systems. For given parameters in specific applications the intensity and concentration of Piezo active material and of Faraday coils can be increased or decreased to match the energy characteristics so as to optimise both absorption of kinetic energy and it's transformation into electrical current. A related benefit is the capacity to generate a compound signal as the electrical outputs are directly proportional to the force and frequency of impacts and in this way provide the capacity to monitor any abnormality in operating parameters.
(014) It will be apparent to those of ordinary skill in the art that the combination of Curie or Piezo outputs with Faraday electromagnetic outputs has application across a wide range of industries and public amenities and systems, especially transport systems.
It will be appreciated from the above and from details to follow that different forms and embodiments beyond those disclosed herein may constitute variations which do not depart from the central features and scope of the subject matter. Sheet 5, Description (continued)
Description of Drawings
(015) The drawings disclosed as 1, and 2 are full and enabling exemplary disclosures for one of ordinary skill in the art, to mimic with appropriate variations across a range of applications.
(01 ό) Drawing 1 provides a schematic representation of a Faraday Curie Power pad device akin to an anti vibration device which comprises an outer shield of rigid insulation material (1 ) elastomeric conductive substrate (2 ) which contains an optimum concentration of piezo active crystals poled after inclusion in the direction indicated). The schematic also indicates the presence of piezo active films or fabric (6) layered to provide for collection of piezo energy from ( 2 ) and to collect piezo energy from it's own crystalline inclusions and finally to conduct such combined energy to the outer of the Faraday coils indicated as (3 )
(017) The inner Faraday coils indicated as (4), are comprised of dense segmented windings of insulated copper wire about a flexible core of metallicized, conductive, permeable polymer.
Metallic inclusions are alloyed for maximum permeability and arranged to allow free independent movement of ( 3 ) outer coils by virtue of non conductive spacers (5) which maintain an air gap between (3 ) and ( 4 ); these spacers optimise the generation of current from the movement of outer coils energised by Piezo current, over inner coils about a core with metallic inclusions as described.
(018) The outer Faraday coils indicated as (3) comprise of dense windings of insulated copper about a semi flexible conductive tube which incorporates either Neodymium or Samarium cobalt elements magnetised as indicated.
(019) The inner coils (4) are fixed to a neutral surface which is as far as possible independent of the impacts on the substrate (2 ) such that the outer coils (3 ) will move relative to inner coils (4) as a consequence of each impact and partial deformation of the substrate. A current from each of the coil assemblies will result from the movement above according to Faradays principles of induction .
(020) Drawing 2 provides a schematic representation of a Faraday Curie device akin to a shock absorber which comprises end caps (land 9 ), a coil spring or alternatively an air spring pre inflated to a pressure appropriate to design loads(2 and 10). An outer frame (8 ) is represented as a cylinder containing a compressible elastomeric substrate (7 ) which in turn contains both piezo active crystals ( 6 ) and a densely wound array of Piezo active fibre or threads (5) . Both (5 ) Sheet ' b Descriptions (continued) Descriptions of Drawings and ( 6 ) are poled as indicated ( ) such that piezo electric energy trom (6 ) is collected and amplified on (5 ) as a consequence ot any impact on (7) the elastomeric substrate.
(021 ) Drawing 2 also indicates the presence of inner ( 3 ) and outer ( 4 ) Faraday coils whereby the outer coils are contained within the body of the outer frame (8 ) surrounded by the conductive elastomeric substrate( 7 ). The inner coils (3 ) are attached to the upper end cap(l ) but not the lower end cap (9) which is connected to the outer frame
( 8 ) by a coil spring or alternatively by an air spring pre inflated to a pressure to match design loads according to the application of such a device.
(022) One of ordinary skill in the art will appreciate from the above that any impact on the device when deployed to function as a shock absorber will compress the coils or air springs(2,10 ) causing the inner coils (3 ) attached to the end cap (1 ) to move through the outer coils(4) thus generating an electric current according to Faraday's induction principles. The force of the impact above will simultaneously transmit pressure through the coil or air spring to the surface of the substrate with the effect of applying pressure to the piezo active materials (5 ) and (6 ) within said substrate and generating electrical energy from said materials proportionate to the force, frequency and extent of the impact.
The energy thus created and indicated as current(a) is transferred to the poles of the outer coils with the effect of intensifying the magnetic field about such coils according to established electromagnetic principles and in turn amplifying the electrical current(A,a) derived from the movement of inner coils ( 3 ) within outer coils (4 ) .
Each impact or action as described above will generate an equal and opposite reaction from the coil or air spring in concert with the compressible substrate. Where the action will generate a combination of Curie or Piezo power together with Faraday or electromagnetic energy, the reaction will generate Faraday power as the reaction force causes the end cap to move to it's starting position moving inner coils ( 3 ) within outer coils ( 4 ) in consequence. Incorporation of a suitable capacitor between the Piezo output and the outer coil circuits will 'spread' the Piezo energy over both action and reaction movement.
(023) It may be appreciated by one of ordinary skill in the art that the number of coil assemblies relative to the size of the outer frame can be increased or decreased and that this will have a calculable effect on the damping effect of the device and on the energy output. Sheet "9T Descriptions (concluded) Descriptions of Drawings
In the same way the intensity of the windings about inner and outer coils can also be increased or decreased with similar effects. It is also the case that the number of coil assemblies that are active in the device can be regulated by way of relays activated remotely and/or wirelessly via appropriate signal frequency. Any such variation above can be used to instantaneously match the capacity of the device to the dynamics of the application thus simultaneously optimising kinetic energy absorption and electrical energy output.

Claims

Sheet S Claims
What is claimed is:-
(I) A system capable of transforming kinetic energy into electrical energy by combining piezo electric energy with electromagnetic or 'Faraday' electrical energy whereby both forms of energy derive from the same physical stimulation in the form of repeated impacts or vibration and the effect of such energy on the subject devices.
(2) The energy transforming system of claim one whereby the piezo electric energy derived from physical stimulus is used to synergise or potentiate the Faraday energy derived from the same stimulus by way of intensifying the magnetic fields used for Faraday power generation thus increasing the output from such fields.
(3) A system according to claims above where the quantum of Piezo energy may be insignificant compared to the Faraday energy but where the value of the Piezo energy may be valuable in providing a complex signal distinguishing between a normal or abnormal state of operation at the subject energy interface.
(4) The energy transformation system of claims one and two whereby the capacity for absorption of energy and the consequent output of electrical energy can be varied to match a range of impact and vibration loads by increasing or decreasing the number of active magnetic fields and or by increasing or decreasing the intensity of field windings, in either case by remote switching and relay devices.
(5) An energy transformation system according to claims above where the impact or vibrational energy results in generation of a pattern of electrical output power directly proportional to the frequency, deflection and force of such impacts and which accordingly represents a compound signal which can be used to monitor normal parameters of operation in any subject environment and to reflect the extent of any departure or variation from such parameters.
(6) An energy transformation system able to be applied in a plurality of forms as illustrated by subject exemplars akin to a vibration absorbing mounting device and a second exemplar akin to a shock absorber as used in various and numerous forms of transport where the subject technology is applicable in a wide range of similar applications which would be familiar and evident to one experienced in the art. Sheet *\ Claims (concluded)
(7) An energy harvesting system according to the above with application at any point of repeated impact between a generative force and an energy absorbing surface such as a roadway, railway or bridge mounting where road or rail vehicles provide generative energy and the subject devices or devices are able to absorb and transform such energy.
(8) An energy harvesting system usable at a point where any form of reciprocating machine generates vibration and thus the potential for energy harvest as described from the combination of piezo energy according to the Curie Brothers discovery and electromagnetic current according to Faraday's principles.
PCT/GB2008/001549 2008-04-29 2008-04-29 Curie- faraday power pads WO2009133333A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/GB2008/001549 WO2009133333A1 (en) 2008-04-29 2008-04-29 Curie- faraday power pads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB2008/001549 WO2009133333A1 (en) 2008-04-29 2008-04-29 Curie- faraday power pads

Publications (1)

Publication Number Publication Date
WO2009133333A1 true WO2009133333A1 (en) 2009-11-05

Family

ID=40242187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/001549 WO2009133333A1 (en) 2008-04-29 2008-04-29 Curie- faraday power pads

Country Status (1)

Country Link
WO (1) WO2009133333A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047281A1 (en) * 2002-11-18 2004-06-03 Microtechnology Centre Management Limited Motion activated power source
WO2006046937A1 (en) * 2004-10-21 2006-05-04 Societe De Technologie Michelin Energy harvester with adjustable resonant frequency
WO2006114741A2 (en) * 2005-04-27 2006-11-02 Philips Intellectual Property & Standards Gmbh Arrangement for converting mechanical energy into electrical energy
DE102005059508A1 (en) * 2005-12-13 2007-06-14 Tecpharma Licensing Ag Electricity generating pen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047281A1 (en) * 2002-11-18 2004-06-03 Microtechnology Centre Management Limited Motion activated power source
WO2006046937A1 (en) * 2004-10-21 2006-05-04 Societe De Technologie Michelin Energy harvester with adjustable resonant frequency
WO2006114741A2 (en) * 2005-04-27 2006-11-02 Philips Intellectual Property & Standards Gmbh Arrangement for converting mechanical energy into electrical energy
DE102005059508A1 (en) * 2005-12-13 2007-06-14 Tecpharma Licensing Ag Electricity generating pen

Similar Documents

Publication Publication Date Title
CN101449450B (en) An electromechanical generator for, and method of, converting mechanical vibrational energy into electrical energy
KR101740690B1 (en) Energy harvester for vehicle tire
US20190273452A1 (en) Electromagnetic vibration energy harvester for urban rail transit bridge health monitoring
KR101448467B1 (en) Resonance linear gengrator using vibration of a road surface
US10094363B2 (en) Method and apparatus for recovery of parasitic energy losses
CN111041899B (en) Intelligent power generation track slab based on magnetostrictive material
RU2015122896A (en) ELECTROMECHANICAL GENERATOR AND METHOD FOR CONVERTING MECHANICAL VIBRATION ENERGY TO ELECTRIC ENERGY
CN110029533A (en) A kind of track vibration isolator and track vibrating isolation system
CA2829182C (en) Vibration-based electric power generator
US20120180468A1 (en) Automobile energy absorbing and actuating system, method, and apparatus
CN103560640A (en) Magneto-electricity/electromagnetic compound type low-frequency wideband vibration energy collector
KR101746857B1 (en) Hybrid generator using vibration
CN103023377A (en) Piezoelectric and electromagnetic hybrid variable-frequency micro-power generation assembly and method for same
CN107222129B (en) A kind of vibration-damping generator based on converse magnetostriction principle
CN104963985A (en) Magneto-rheological damper of integrated energy recovery device
JP2012165561A (en) Multi-dimensional oscillatory generator
KR101520728B1 (en) Hybrid energy harvesting module
JP2014011858A (en) Vibration power generating device
Azangbebil et al. Experimental and numerical studies of a soft impact piezoelectric energy harvesting using an MR fluid
CN201490866U (en) Road induction power generating device
WO2009133333A1 (en) Curie- faraday power pads
CN102983779B (en) Piezoelectric vibration energy capture device of magnetic coupling
CN104767346A (en) Electromagnetic type vibration energy collector based on Halbach array
CN113757065B (en) Self-generating self-sensing energy harvester for rail vehicle
CN111030506A (en) Highway vibration piezoelectricity, magnetoelectricity composite power generation device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08750510

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08750510

Country of ref document: EP

Kind code of ref document: A1