EP2539582A1 - Moteur d'entraînement (turbine à eau) pour centrale électrique flottante hydrocinétique à taux d'efficacité élevé, et module de centrale électrique flottante hydrocinétique - Google Patents

Moteur d'entraînement (turbine à eau) pour centrale électrique flottante hydrocinétique à taux d'efficacité élevé, et module de centrale électrique flottante hydrocinétique

Info

Publication number
EP2539582A1
EP2539582A1 EP10722403A EP10722403A EP2539582A1 EP 2539582 A1 EP2539582 A1 EP 2539582A1 EP 10722403 A EP10722403 A EP 10722403A EP 10722403 A EP10722403 A EP 10722403A EP 2539582 A1 EP2539582 A1 EP 2539582A1
Authority
EP
European Patent Office
Prior art keywords
driving engine
working channel
blades
cross
confusor
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Withdrawn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
EP10722403A
Other languages
German (de)
English (en)
Inventor
Ivan Korac
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.)
Hidra Force doo
Original Assignee
Hidra Force doo
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 Hidra Force doo filed Critical Hidra Force doo
Publication of EP2539582A1 publication Critical patent/EP2539582A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F03B17/063—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
    • F03B17/064—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation and a rotor of the endless-chain type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • DRIVING ENGINE (WATER TURBINE) OF HYDROKTNETIC FLOATING POWER PLANT WITH ENHANCED EFFICIENCY DEGREE, AND HYDROKINETIC
  • the subject matter of invention is a driving engine of hydrokinetic floating power plant with enhanced efficiency degree and hydrokinetic floating power plant module for electric power generation accomplished by use of kinetic energy of free river water flow.
  • the invention relates to determination of individual element parameters by which an increased degree of water flow efficiency in driving engine working channel as well as the efficiency of whole hydrokinetic floating power plant module is achieved.
  • the invention is referred to technical field which is according to International patent classification (IPC) designated under No. FO3B9/00 and refers to driving engines for liquids driven by endless chain.
  • IPC International patent classification
  • the document DE102007003323A1 shows a device with multiple blades submerged in water.
  • the blades plane is perpendicular to water flow direction.
  • the blades are connected by means of a wheel parallel to flow.
  • Blades are fixed to transmission device which transfer longitudinal movement of blades to rotating generator shaft.
  • Document FR2532364 refers to hydroelectric power plants using water power as source of energy where force is acting in direction of rotation of the half of blades and not perpendicular as it is with most of hydroelectric power plants.
  • Hydroelectric power plant is located at the most suitable location at any water flowing with stream sufficient for electric power generation and without having impact to fish migration and requirements for larger intervention.
  • the device can be completely manufactured in a factory.
  • It includes two buoys (f) and (g) interconnected by plate (h) and contains protective grid. Between buoys are placed movable blades which are maintained perpendicular to flow direction by means of pre-stressed calibrated springs (b) and by which the force acting upon blades is controlled. Blades are fixed to two driving chains (c) and by virtue of shafts cause rotation of two kinetic wheels, gears and alternator.
  • Document DE202006013818U1 indicates floating conveyer unit with blades driving the electric power generator.
  • Document WO2009103131A2 indicates electric power plant producing hydroelectric power. The power plant contains a pontoon (3) with confusor (5) and diffusor (7) which are connected through working channel (6) where generators (8) are mounted within the confusor and diffusor.
  • transmission systems (4) which shafts are connected with power generator (9). Big (12) and small (13) sprockets/wheels are connected with transmission system shafts (16) of transmission system (4), which drive long (14) and short (15) sprockets elts where are long (19) and short (20) parts connected to long (14) and short (15) sprockets/belts respectively on which are placed groups of blades (18) where each individual blade (21) is at defined angle relative to working channel (6) axis. Pontoon (3) is kept at fixed location by means of anchors (2) ⁇
  • Present invention relates to enhancement of efficiency degree of hydrokinetic floating power plant module by defining individual parameters of driving engine of hydrokinetic floating power plant. Details and parameters of driving engine elements contributing to improvement of efficiency degree of hydrokinetic power plant relate to the following:
  • - Fig. 1 indicates hydrokinetic floating power plant module
  • - Fig.2 indicates driving engine assembly in perspective view with sequence of interconnected blades by endless chain
  • - Fig.3 indicates driving engine assembly in perspective view with sequence of interconnected blades by endless chain
  • Fig. 4 indicates driving engine assembly in perspective view with sequence of interconnected blades by endless chain
  • - Fig. 5 indicates side view of driving engine assembly with sequence of interconnected blades by endless chain
  • - Fig. 6 indicates schematic presentation of the driving engine in side view
  • Fig. 7 indicates schematic presentation of the driving engine in plan view
  • Fig. 8 indicates diagram of force change during tested periods for distance between blades being 0.8 m
  • - Fig. 9 indicates diagram of force change during tested periods for distance between blades being 3.0;
  • - Fig. 10 indicates diagram of force change during tested period for distance between blades being 6.0 m
  • Fig. 11 indicates diagram of force change on blades with 10% gap between tunnel and blades in tunnel model with 10 blades being at mutual distance 0.8 m;
  • Fig. 12 indicates diagram of force change on blades with 20% gap between tunnel and blades in tunnel model with 10 blades being at mutual distance 0.8 m
  • - Fig. 13 indicates diagram of force change on blades with 30% gap between tunnel and blades in tunnel model with 10 blades being at distance 0.8 m;
  • - Fig 14 indicates diagram of force change on blades in tunnel model with 10 blades being at distance 0.8 m and with 10% gap between tunnel and blades at inclination of confusor 45° and diffusor 25°.
  • distance t between two adjacent blades being 0.8, 3.0 and 6.0 m;
  • blade velocity 1, 2 and 3 m/s for undisturbed flow velocity being 2 m/s
  • Hydrokinetic floating power plant module is presented in Fig.1.
  • Hydrokinetic floating power plant module (1) is anchored at determined location by means of four concrete blocks (3) which are connected through four buoys (2) to floating power plant platform.
  • Hydrokinetic floating power plant module driving engine (13) is accommodated within casing (4).
  • Fig. 2 to 4 present perspective view of driving engine assembly (13) with sequence of blades (6) interconnected by endless chain (7).
  • Fig. 5 indicates side view of driving engine assembly with sequence of blades (6) interconnected by endless chain (7).
  • kinetic energy of water by the quantity of movement change, is converted into mechanical rotary energy.
  • the working wheel shaft is connected by means of gear assemblies with generator (9) where mechanical rotary energy is converted in electrical energy.
  • driving engine (13) In the working channel (14) of driving engine (13) is installed sequence of blades (6), where the blade plane is perpendicular to water flow direction. In order to achieve continuous movement of blades (6), they are interconnected by endless chain (7). On the front and back side of driving engine (13) are fitted gear assemblies/working wheels which linear movement of blades (6) in the cannel (14) convert into rotary movement, maintain continuous movement of blades (6) and direct the blade (6) entering into water and coming out perpendicular related to water flow in the working channel (14) of driving engine (13). Directed - vertical entry and exit of blades (6) in and out from water enable to take over water flow energy evenly without negative effects.
  • the ratio of non-submerged and submerged parts of blade height in relation to the outside water line before inflow into confusor amounts 10 to 20%. Furthermore, in order to accomplish as much as possible stable water force acting upon blades (6), the range of number n simultaneously entirely submerged blades (6) in the channel (14) of driving engine (13) equals 2-6. Gears/working wheels assemblies at front and back side of driving engine (13) convert linear movement of blades (6) in working channel (14) into rotary movement, and kinetic energy taken over by front wheel shaft is converted into mechanical energy carried over to generator rotor (9) which generates electrical energy.
  • Working channel (14) of driving engine (13) is formed by two internal side planes (15) and bottom plane (16).
  • Confusor (10) is located at the entry of working channel (14) by which river flow is collected and directed into working channel (14) of driving engine (13). Dimensions and form of confusor enables collection of targeted quantity of water out from river flow and increase water velocity in driving engine channel when compared to the water level in the free river flow.
  • Confusor (10) is bounded by three planes, i.e. by two side planes (17) and bottom plane (18).
  • Fig. 6 & 7 show angles a i ⁇ under which confusor planes (17) and (18) are connected to working channel.
  • Working channel (14) is bounded by three planes set under 90° angle.
  • Side planes (17) of confusor (10) are set under angle a with respect to the plane of internal side planes (15), while confusor bottom plane (18) is set under angle ⁇ with respect to bottom plane (16) of the working channel (14) (see Figs. 5 & 6).
  • Inclination angle a of side planes (17) and angle ⁇ of confusor (10) lower plane (18) enable collection i.e.
  • Fig. 5 indicates rise of overtaken water flow (level of internal water) with respect to the water flow level before entering into confusor (10) (the level of outside water).
  • diffusor (11) At the outlet from driving engine working channel (14) is located diffusor (11) which promotes accelerated water output from channel (14) and by this rapidly equalizes increased height of water column in the channel with height of water in the free flow.
  • Diffusor (11) is also bounded by three planes, i.e. by two side planes (19) and bottom plane (20).
  • Side plane (19) of diffusor (11) is set under angle ⁇ with respect to the plane of internal side planes (15) of the working channel (14).
  • 6&7 illustrate schematic presentation of the driving engine in side view and top view showing values /, h, t, z and z'
  • / means width of the working channel (14), h the height of water level in the working channel (14), t is distance between adjacent blades (6), z and z' is gap between internal planes (15) & (16) of the working channel (14) and end edges of blades (6).
  • the gap z is expressed in %, and is defined as ratio between channel width / and the part being between end edge of the blades (6) and planes (15) of the working channel (14).
  • the gap z' is expressed in %, and is defined as ratio between the height of water level h and the part being between end edge of the blades (6) and bottom plane (16) of the working channel (14).
  • angle a in range from 20° to 30°
  • angle ⁇ in range from 10° to 30°
  • angle ⁇ in range from 10° to 20°
  • Fig. 6&7 illustrate schematic presentation of driving engine in side view with values /, h, t, z, and z' where / is width of working channel (14), h is height of water level in working channel (14), t is distance between adjacent blades (6) and z and z' are gaps between internal planes (15) and (16) of working channel (14) and end edges of blades (6).
  • Increased water velocity and level in working channel, gaps z and z' between planes (15) and (16) of working channel (14) and end edges of blades (6) as well as decreased blade velocity in time of overtake of water kinetic energy result in water column height difference before and after the blade by which the effect of hydraulic jump occurs resulting with increase of force upon the blade, i.e.
  • FIG. 11, 12 and 13 present diagrams of force changes on the blades with gaps z and z' between working channel (14) and end edges of blades (6) being 10%, 20% and 30%. The following cases have been examined:
  • Diagrams on Fig. 8, 9 and 10 present change of force during testing cycles, where one cycle is travel time for one blade from its occurrence at the tunnel inlet until its rising, for distance between blades 0.8m, 3.0m and 6.0 m.
  • Hydrokinetic floating power plant (1) can be used together with driving engine assembly (13) as integrated floating module which can be individually or aggregately installed by anchoring in free river streams and derivative canals.
  • electric power is generated for end user by ecological acceptable source which contributes to generation of electric power from renewable sources.
  • so generated electric power contributes to general energetic efficiency and reduction of greenhouse gases.
  • This type of floating module enables flora and fauna migration from river habitation, and because all assemblies are of mechanical type, there is no environment pollution.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)
  • Soil Working Implements (AREA)
  • Paper (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne des améliorations portant sur le taux d'efficacité d'une centrale électrique flottante hydrocinétique (1), consistant à définir des paramètres individuels du moteur d'entraînement (13). Les détails et les paramètres du système de moteur d'entraînement (13) qui contribuent à améliorer le taux d'efficacité concernent la détermination de jours optimaux z et z' entre les pales (6) et les plans internes (15, 16) du canal du moteur d'entraînement (13). La détermination du rapport optimal de la partie submergée de la hauteur de pale (6) dans un liquide et de la partie de hauteur de pale (6) au-dessus de la surface de liquide par rapport au niveau d'eau externe avant que l'eau entre dans un tube convergent (10), la détermination de la forme et de la taille du tube convergent (10) et du diffuseur (11) ainsi que la détermination de la distance t entre les pales (6) et du nombre n de pales (6) simultanément submergées dans le canal (14) du moteur d'entraînement (13) permettent d'obtenir des forces d'action de liquide plus constantes sur les pales.
EP10722403A 2010-02-22 2010-02-22 Moteur d'entraînement (turbine à eau) pour centrale électrique flottante hydrocinétique à taux d'efficacité élevé, et module de centrale électrique flottante hydrocinétique Withdrawn EP2539582A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HR2010/000004 WO2011101693A1 (fr) 2010-02-22 2010-02-22 Moteur d'entraînement (turbine à eau) pour centrale électrique flottante hydrocinétique à taux d'efficacité élevé, et module de centrale électrique flottante hydrocinétique

Publications (1)

Publication Number Publication Date
EP2539582A1 true EP2539582A1 (fr) 2013-01-02

Family

ID=42985701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722403A Withdrawn EP2539582A1 (fr) 2010-02-22 2010-02-22 Moteur d'entraînement (turbine à eau) pour centrale électrique flottante hydrocinétique à taux d'efficacité élevé, et module de centrale électrique flottante hydrocinétique

Country Status (7)

Country Link
US (1) US20130115045A1 (fr)
EP (1) EP2539582A1 (fr)
CN (1) CN102947583A (fr)
AU (1) AU2010346297A1 (fr)
BR (1) BR112012020691A2 (fr)
EA (1) EA201270719A1 (fr)
WO (1) WO2011101693A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10228665B1 (en) * 2013-05-24 2019-03-12 National Technology & Engineering Solutions Of Sandia, Llc Emulator for rotary energy sources
JP6176778B2 (ja) * 2013-07-31 2017-08-09 独立行政法人国立高等専門学校機構 潮力発電装置
ITMI20131766A1 (it) * 2013-10-23 2015-04-24 Castagnaro Mirco Apparato idraulico
GB2521836B (en) * 2014-01-02 2020-07-29 Pliosaur Energy Ltd Hydrokinetic system
CN105156257B (zh) * 2015-06-23 2017-05-17 武汉理工大学 横卧式垂直轴低速平水流发电装置
PT3150846T (pt) * 2015-09-29 2019-04-01 Arrecife Energy Systems S L Dispositivo para converter energia cinética de um fluxo de ondas, correntes de vento ou água em energia mecânica de rotação
US10910936B2 (en) 2015-10-14 2021-02-02 Emrgy, Inc. Cycloidal magnetic gear system
CN106438167A (zh) * 2016-08-26 2017-02-22 刘建文 一种低水压水能发电装置
IT201700099000A1 (it) * 2017-09-04 2019-03-04 De Vita Rodolfo Dispositivo convertitore dell’energia posseduta dal moto ondoso munito di amplificatore dell’effetto d’onda.
US10724497B2 (en) * 2017-09-15 2020-07-28 Emrgy Inc. Hydro transition systems and methods of using the same
US10876265B2 (en) * 2018-04-11 2020-12-29 BVH, Inc. Modular hydropower unit
US11261574B1 (en) 2018-06-20 2022-03-01 Emrgy Inc. Cassette
US11319920B2 (en) 2019-03-08 2022-05-03 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation
WO2020191226A1 (fr) 2019-03-19 2020-09-24 Emrgy Inc. Canal
PL73040Y1 (pl) * 2020-01-16 2023-06-12 Politechnika Swietokrzyska Przepływowa mikroelektrownia wodna
GB2577849B (en) * 2020-01-27 2020-11-25 Microturbine Consulting Ltd Hydroelectric generator
GR1010607B (el) * 2022-01-07 2024-01-23 Πετρος Σπυρου Τατσης Μηχανισμος παραγωγης ενεργειας
IT202200003815A1 (it) * 2022-03-02 2022-06-02 Oscar GIORGIS Apparato e impianto per la produzione di energia rinnovabile

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US471564A (en) * 1892-03-29 Lemuel c
GB188728A (en) * 1921-07-23 1922-11-23 Armin Tetetleni Improvements relating to turbines and the like
DE3800192A1 (de) * 1987-02-02 1988-08-11 Karl Wilhelm Schneider Unterschlaegige wasserradanordnung
TW200519292A (en) * 2003-10-13 2005-06-16 Isidro Umali Ursua Turbine housing and floatation assembly
GB0501837D0 (en) * 2005-01-28 2005-03-09 Omer Bndean A A system for production of electrical energy from sea wave and river fluid flow
US7607862B2 (en) * 2005-08-29 2009-10-27 Thorsbakken Arden L Shoaling water energy conversion device
WO2007072513A1 (fr) * 2005-12-20 2007-06-28 Ener Water Limited Dispositif de flottement hydroelectrique et centrale hydroelectrique comprenant ce dispositif
GB0608091D0 (en) * 2006-04-25 2006-05-31 Kelvin Steven B Floating power generation plant
ITFI20060212A1 (it) * 2006-08-30 2008-02-29 Stempa Di Mario Gonzi Dispositivo a pale per la produzione di energia.
DE102007003323A1 (de) * 2007-01-17 2008-07-24 Goran Kaurin Wasserschaufelgenerator
JP4022244B2 (ja) * 2007-04-06 2007-12-12 シーベルインターナショナル株式会社 水力発電装置
BG66263B1 (bg) * 2008-02-20 2012-10-31 Христо СТАНКОВ Понтонна водноелектрическа централа
US8534057B1 (en) * 2009-07-22 2013-09-17 Brian Brown Electrical generator for waterway

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011101693A1 *

Also Published As

Publication number Publication date
BR112012020691A2 (pt) 2016-07-26
WO2011101693A1 (fr) 2011-08-25
US20130115045A1 (en) 2013-05-09
EA201270719A1 (ru) 2013-05-30
CN102947583A (zh) 2013-02-27
AU2010346297A1 (en) 2012-09-06

Similar Documents

Publication Publication Date Title
EP2539582A1 (fr) Moteur d'entraînement (turbine à eau) pour centrale électrique flottante hydrocinétique à taux d'efficacité élevé, et module de centrale électrique flottante hydrocinétique
Reabroy et al. Hydrodynamic response and power efficiency analysis of heaving wave energy converter integrated with breakwater
Lago et al. Advances and trends in hydrokinetic turbine systems
Zeiner-Gundersen A novel flexible foil vertical axis turbine for river, ocean, and tidal applications
Shashikumar et al. Numerical investigation of conventional and tapered Savonius hydrokinetic turbines for low-velocity hydropower application in an irrigation channel
Raghavan Energy Extraction from a Steady Flow Using Vortex Induced Vibration.
Barbarelli et al. Analysis of the equilibrium conditions of a double rotor turbine prototype designed for the exploitation of the tidal currents
CN105308310A (zh) 发电水力涡轮机组件
Mabrouki et al. Performance analysis of a water Savonius rotor: effect of the internal overlap
Shahsavarifard et al. Performance gain of a horizontal axis hydrokinetic turbine using shroud
Park et al. Analysis of a pico tubular-type hydro turbine performance by runner blade shape using CFD
Wang et al. Multi-stage wave energy conversion and electric power estimation of a chamber-breakwater integrated system with a U-shaped impulse turbine
BG110063A (bg) Понтонна водноелектрическа централа
KR101256823B1 (ko) 소수력 발전장치
Kim Synergy of Multiple Cylinders in Flow Induced Motion for Hydrokinetic Energy Harnessing.
KR101049421B1 (ko) 조류 발전 시스템
Tanaka et al. A study on Darrieus-type hydroturbine toward utilization of extra-low head natural flow streams
Licari et al. Study of low-head hydrostatic pressure water wheels for harnessing hydropower on small streams
Yah et al. Numerical investigation on effect of blade shape for stream water wheel performance.
Qureshi et al. A new method for extracting ocean wave energy utilizing the wave shoaling phenomenon
Jamaldi et al. Effect of blades number to performance of Savonius drag-type water turbine on flow of water in pipe
Slaboch et al. Design and Analysis of Small Scale Horizontal Archimedean Screw for Electric Power Generation
Guney et al. Hydrokinetic technologies and application
RU139855U1 (ru) Устройство для преобразования энергии потока воды в энергию вращательного движения
Bernad et al. 2D unsteady flow simulation in the Achard turbine

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

17P Request for examination filed

Effective date: 20120910

AK Designated contracting states

Kind code of ref document: A1

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 SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

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: 20150901