baber/WOPTO huggingface dataset:
Patent DE-112020005166-B4 (DE)
Title: Auf teilnehmer abgestimmtes filtern unter verwendung von dynamischer spektralmaskierung durch ein tiefes neuronales netz zur isolierung und sicherheit von gesprächen in lauten umgebungen
Inventor: LINTON JEB
IPC: G10L21/0272
Filed: 2020-11-26
Granted: 2023-08-24
Abstract: Verfahren zum Isolieren und Verstärken eines Gesprächs zwischen ausgewählten Teilnehmern, das Verfahren aufweisend:Empfangen einer Mehrzahl von Spektralmasken durch eine mobile Einheit, wobei jede Spektralmaske aus der Mehrzahl einem jeweiligen Teilnehmer in einer ausgewählten Gruppe von Teilnehmern entspricht, die an einem Gespräch beteiligt sind, wobei die mobile Einheit die Mehrzahl von Spektralmasken drahtlos von mobilen Einheiten empfängt, die der ausgewählten Gruppe von Teilnehmern entsprechen, die an dem Gespräch beteiligt sind, wobei die Spektralmaske ein mathematisch definierter Filter ist, der auf Töne angewendet wird;Erzeugen, durch die mobile Einheit, einer zusammengesetzten Spektralmaske durch additive Überlagerung der Mehrzahl von Spektralmasken, die für jeden jeweiligen Teilnehmer, der an dem Gespräch beteiligt ist, personalisiert sind, als eine personalisierte Spektralmaske, die ein Zeitreihen-Vorhersagemodell ist, das die nächste Frequenzsignatur der Stimme eines jeweiligen Teilnehmers vorhersagt, wenn Töne verarbeitet werden; undAnwenden, durch die mobile Einheit, der zusammengesetzten Spektralmaske auf von einem Mikrofon erfassten Ton, um Töne herauszufiltern, die nicht mit der zusammengesetzten Spektralmaske übereinstimmen, unter Verwendung einer logischen ODER-Operation in einem Frequenzbereich, die einen Filter erzeugt, der nur Stimmen der ausgewählten Gruppe von Teilnehmern zulässt, die an dem Gespräch beteiligt sind, sowie Verstärken von verbleibenden Tönen, die mit der zusammengesetzten Spektralmaske übereinstimmen.
Patent CH-672389-B5 (CH)
Inventor: NOIRJEAN PIERRE-ANDRE
IPC: G04C3/00
Filed: 1988-05-26
Abstract: The electric mantlepiece clock comprises a plate (28) carrying a motor (11), a movement (21) and hands (82, 100) for displaying the hour, and a base-middle part (10) carrying electrical and electronic elements (7, 9) resting on a printed circuit (3) which is itself fixed in the base-middle part. Electrical connections (15, 17) between the motor and the printed circuit are established when the base-middle part is made integral with the plate. If the mantlepiece clock comprises an alarm device, other electrical connections (129, 127) are also established between the alarm mechanism (66, 88) and the printed circuit when the base-middle part is made integral with the plate. 
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Patent CZ-279644-B6 (CZ)
Title: Switchboard contact system
Inventor: MRACEK PETR ING
IPC: H01H31/32
Filed: 1992-04-01
Abstract: The equipment consists of fixed contacts (5) and a movable central draw bar (1) in which, on the insulating bearers (2), there are movable contacts (6) so that at least one beam (3) passes through the insulating carrier bearer (2) on one end of which there is a movable contact (6) and this bearer (3) is equipped with a pressure spring (4) under and above the insulating bearer (2). The axis of the bearer (3) or the area located through the axes of the pair of bearers (3) of one movable contact (6) deviates from the area of its contact area or contact areas by an angle alpha the value of which is limited by 95 degrees to 105 degrees.<IMAGE>
Patent CZ-289981-B6 (CZ)
Title: Hard tissue stimulating agent
Inventor: HANSSON HANS-ARNE
IPC: A61K31/722
Filed: 1995-07-13
Abstract: In the present invention there is disclosed the use of chitosan and a polysaccharide immobilized thereto being selected from the group comprising heparin, heparan sulfate, chondroitinsulfates and dextran sulfate for the preparation of an agent capable of providing stimulated regeneration of hard tissue in connection with implants intended for integration into hard tissue.
Patent CZ-293323-B6 (CZ)
Title: Meta-guanidine, urea, thiourea or azacyclic amino benzoic acid derivatives as integrin antagonists
Inventor: RUMINSKI PETER GERRARD
IPC: C07D295/12
Filed: 1996-08-27
Abstract: The present invention relates to a class of compounds represented by the general formula I or pharmaceutically acceptable salts thereof, wherein A is selected from the formulae II, pharmaceutical compositions thereof and methods of using such compounds and compositions as {alpha}iv {beta}3 integrin antagonists.
Patent SK-284292-B6 (SK)
Title: Method of preparation of D-hamamelose
Inventor: HRICOVINIOVA ZUZANA
IPC: B01D15/04
Filed: 1999-01-27
Abstract: Preparation of D-hamamelose (2-C-hydroxymethyl-D-ribose) from D-fructose by isomerization reaction catalyzed by molybdenum ions with the presence of boric acid. D-fructose is warmed-up in aqueous solution with presence of boric acid in an amount expressed by the mole ratio to saccharide 4 : 1 a catalytical amount of molybdenum acid 1 - 4 % of the total weight, at temperature of 70 - 90 °C in the time scale of 1 - 10 hours. As a result the balanced mixture is created of D-fructose : D-hamamelose: D-sorbose in the ratio 3 : 1 : 0,5. From this reaction mixture D-hamamelose is isolated by the simple chromatographic division on the colon of the highly acidic cation exchanger in the barium form by the elution of water. This production method does not demand and expensive device, it is less demanding according to material and energy and D-fructose the initial raw material is easily accessible. The use is possible in production of valuable saccharides necessary in the field of medicine, pharmacology and biology.
Patent SK-284064-B6 (SK)
Title: Pharmaceutical formulation of nerve growth factor
Inventor: KNEPP VICTORIA M
IPC: A61K9/19
Filed: 1994-08-16
Abstract: Stable, aqueous pharmaceutical formulations of human nerve growth factor (NGF) in aqueous isotonic solutions, buffered to maintain the pH from about 4.5 to about 6.0, and optionally containing a carrier such as human serum albumin are provided. Also provided are aqueous NGF formulations suitable for lyophilization and subsequent reconstitution in which rhNGF is admixed with sugars, optionally HSA, and buffer. The formulations are useful for the treatment of Alzheimer's disease and other neuronal disorders.
Patent SK-281515-B6 (SK)
Title: Ethylene copolymers, process for the preparation thereof
Inventor: DALL OCCO TIZIANO
IPC: C08F4/60
Filed: 1995-06-19
Abstract: A process for the preparation of ethylene polymers is disclosed, comprising the polymerization reaction of ethylene in the presence of a catalyst consisting of the reaction product of:   (A) a mixture of the racemic and meso isomers of a stereorigid metallocene compound of a transition metal, belonging to Groups III, IV or V or the lanthanides in the Periodic Table of the Elements, with two cyclopentadienyl ligands connected to each other by a chemical bridge, and (B) at least one co-catalyst capable of activating both the racemic form and the meso form of the metallocene compound, selected from the alumoxanes and the compounds capable of forming an alkylmetallocene cation. In particular the process is suitable to prepare ethylene copolymers with uniform distribution of the comonomer along the polymer chain and broad molecular weight distribution.
Patent CS-276282-B6 (CS)
Inventor: REJENT JAN ING CSC
IPC: B60L9/12
Filed: 1990-03-13
Abstract: Zapojení zjednodušuje tyristorový měnič,
sestavený ze řízených usměrňovačích
můstků, při účinné kompenzaci jalového
výkonu v režimu jízdy i brzdy. Podstatou
řešení je, že k části samostatného vinutí
(2) trakčního transformátoru připojeného
k jednomu z nesymetrických můstků
(4) pro napájení kotvy (7) je připojen
kompenzační můstek (5) sestavený z vypínatelných
tyristorů, jehož výstup je
spojen z budicím vinutím (8) trakčního
motoru. Pro rychlé odbuzení při havarijním
režimu je paralelně k budicímu
vinuti (8) připojena sériová kombinace
ochranného tyristorů (13) a odporu (12)
Patent CZ-280741-B6 (CZ)
Inventor: MCCUNN MYRON LEE
IPC: F16L37/252
Filed: 1990-03-26
Abstract: Zařízení k aplikaci granulované chemikálie  sestává z rozdělovacího ventilu (30) a  zavážecího ventilu (24). Rozdělovací ventil (30) a zavážecí ventil (24) se automaticky otevírají, když jsou ventily (30, 24) spolu spojeny a  automaticky se zavírají, když jsou ventily (30,  24) od sebe odpojeny. Ventily (30, 24) jsou  uspořádány tak, že zavážecí ventil (24) se vždy  otevírá první a poslední se uzavírá. Vzájemný  pohyb ventilů (30, 24) je řízen vačkovou  konstrukcí mající neutrální polohu, jež  zajišťuje prodlevu mezi otevíráním a zavíráním  obou ventilů (30, 24), čímž je granulovanému  materiálu umožněn průchod mezi ventily (30, 24).ŕ
Patent CZ-278777-B6 (CZ)
Title: Process for removing particles of bentonite and particles containing carbonaceous compounds from dust, obtained when recovering return sand by mechanical way
Inventor: WILHELM LUDWIG DR
IPC: B22C5/18
Filed: 1991-11-22
Abstract: A process is proposed for the separation of the bentonite and carbon carrier particles from the dust obtained mechanically during used sand reclamation. Dust is collected in a cyclone 2 in a first phase. It is then removed from the cyclone and dried in a drier 4, the dried dust being conveyed in a second phase to a sifter 10. The bentonite and other reusable material is drawn off in a duct 14 while the quartz dust is removed via a discharge 12. <IMAGE>
Patent CS-276171-B6 (CS)
Inventor: BUKOVY IVAN ING
IPC: B23K37/04
Filed: 1989-11-20
Abstract: Zariadenie na skúšanie zváracích procesov
je určené na laboratorně a poloprevádzkové
technologické skúšanie roznych tavných
zváracích procesov s výnimkou procesov elektrického
odporového zvárania, ako aj
na skúšanie operatívnych vlastností pří­
davných zváracích materiálov, vlastností
obalov elektrod a zváracích taviv. Účelom
riešenia je jednak dosahovanie laboratórnych
podmienok skúšania zváracích procesov
čo najpresnejšie reprodukujúcich skutočné
podmienky a okolnosti automatizovaných alebo
robotizovaných cyklov v priemyselnej
praxi zvárania aj priestorovo tvarových
zvarov a jednak získanie účelnejšieho, mechanicky
aj technologicky účinnejšieho
kompaktného zariadenia s vyššími úžitkový-
mi vlastnosťami oproti zariadeniam, aké sa
pré sledované ciele doposial používali.
Zariadenie na skúšanie zváracích procesov
má v ložiskách svojho základového stojana
uložený polohovací otočný rám, obsahujúci
strojovo posúvaný pohyblivý zvárací st6l
so zváracou vzorkou, suport s výměnnou
technologickou hlavicou s horákom a ďalšie
akčné mechanizmy, pričom takto kompletovaná
sústava polohovacieho otočného rámu sa
pri polohovaní aj za chodu zváracieho procesu
otáča okolo bodu miesta horenia zvá­
racieho procesu ako nezávislá mechanická
sústava, ktorej pohonné jednotky sú umiestnené
na pevnom základovom stojane a sú mechanickými
prevodmi spojené s koncovými
členrai akčných mechanizmov, nesených už
však polohovacím otočným rámom, čím sa odstránia
z pohyblivej polohovanej sústavy
parazitně hmotnosti pohonných jednotiek
a zlepší sa dynamika sústavy. Polohovanie
otáčaním okolo bodu horenia zváracieho
procesu dává výhodné podmienky pře meranie
a pozorovanie zváracieho procesu, ktorý sa
oproti pozorovatelovi a snímačom len otáča
na mieste.
Patent CZ-293444-B6 (CZ)
Title: Heat treatment apparatus, particularly a deep fat fryer, having a removable vessel
Inventor: DESNOYERS JEAN-CLAUDE
IPC: A47J37/12
Filed: 1997-07-01
Abstract: In the present invention, there is disclosed a heat treatment apparatus, particularly a deep fat fryer, having a removable vessel /3/ intended to contain a cooking medium /9/ and food to be cooked, comprising a frame /1/ in which there is provided a housing /2/ intended to receive the vessel /3/, heating means /4/ disposed at the bottom of said housing /2/, control means /5/ in thermal communication with the vessel /3/ permitting control of the level of temperature of the vessel /3/, overheating protection means /6/ being in thermal communication with the vessel /3/ permitting to avoid that the level of temperature of the vessel /3/ exceeds a pre-established safety threshold, and means /7/ for detecting the presence of the vessel /3/. The invention is characterized in that the control means /5/ are capable of provoking an interruption of the feed circuit of the heating means /4/ before the overheating protection means /6/ are activated, when the vessel /3/ comprises less cooking medium /9/ than a minimum quantity indicated.
Patent CZ-286945-B6 (CZ)
Title: Tetracyclic azepine derivatives, process and intermediates for their preparation and pharmaceutical preparations based thereon
Inventor: SIPIDO VICTOR KAREL
IPC: A61K31/535
Filed: 1995-10-25
Abstract: In the present invention there are disclosed tetracyclic azepine derivatives of the general formula I, in which Re1 and Re2 represent hydrogen, alkyl, alkylcarbonyl, trihalomethylcarbonyl, alkyl being substituted with hydroxyl, alkoxyl, carbonyl, alkylcarbonyloxy group containing 1 to 6 carbon atoms in the alkyl moiety, alkoxycarbonyl or aryl or Re1 and Re2 together with a nitrogen atom to which they are attached can form a morpholine radical, Re3, Re4, Re5, Re6, Re9, Re10, Re11 and Re12 represent independently on each other hydrogen, halogen, cyano, hydroxy, trifluoromethyl, trifluoromethoxy, carboxy, nitro, amino, mono- or diamino, alkylcarbonylamino, aminosulfonyl, mono- or diaminosulfonyl, alkyl, alkoxy, alkylcarbonyl, or alkoxycarbonyl, Re7 and Re8 represent independently on each other hydrogen, OH, alkyl or alkoxy containing 1 to 6 carbon atoms or Re7 and Re8 together can form methylidene, mono or di(cyano)methylene, the group -(CHi2)i2-, -(CHi2)i3-, -(CHi2)i4-, -(CHi2)i5-, -O-(CHi2)i2-O-, or O-(CHi2)i3-O or together with a carbon atom to which they are attached they can represent carbonyl, Re13 represents hydrogen, alkyl or trifluoromethyl, Re14 represents alkyl, cyano or trifluoromethyl, a is 0 to 6, aryl can be optionally a substituted phenyl, as well as their pharmaceutically acceptable addition salts with acids or bases, their stereochemically isomeric forms and A-oxides. In the present invention there are also claimed process and intermediates for their preparation as well as pharmaceutical preparations based thereon. The compounds are mCPP-antagonists and they can be therefore used for treating or prevention of central nervous system diseases, cardiovascular diseases or gastrointestinal disorders.
Patent CZ-293404-B6 (CZ)
Title: Fuse device for a mortar shell
Inventor: ZEHNDER WOLFGANG
IPC: F42C1/00
Filed: 2001-01-03
Abstract: In the present invention, there is disclosed a fuse device (14) that is designed for mortar shells. It includes a safety element movable from a safety position to an armed position, a spring device (74) for producing such movement, and a spring device (74) stressing mechanism for storing energy in the spring to produce the movement, the spring device (74) stressing mechanism comprising an impeller arranged in an air flow path to be rotated by an air flow generated in response to travel of the mortal shell toward a target, the impeller operably connected to the spring for stressing the spring (74) in response to being rotated by the air flow.
Patent CZ-304847-B6 (CZ)
Title: Method of grinding workpieces of aluminium alloys in order to achieve high surface quality
Inventor: NOVÁK MARTIN
IPC: B24B1/00
Filed: 2013-01-28
Abstract: In the present invention, there is disclosed a method of grinding workpieces of aluminium alloys in order to achieve high surface quality, wherein the method is characterized in that a workpiece is machines by a grinding wheel with a grain size less than 200 microns in a bender of artificial resin at peripheral velocity of the workpiece in the range of 20 to 30 m/minute and in a medium consisting of a polysynthetic liquid with concentration of 3 to 7 percent, whereby the grinding wheel cutting velocity is in the range of 35 to 40 m/s, with the proviso that the rate of radial feed during in-feed method of grinding is in the range of 0.07 to 0.13 mm/min and/or the rate of a longitudinal axial feed is in the range of 0.01 to 0.04 m/min.
Patent CZ-286773-B6 (CZ)
Title: Superstructure with stable position and process for making the same
Inventor: MEURER KLAUS
IPC: E01B1/00
Filed: 1994-05-11
Abstract: The proposed superstructure rails (3) are placed on sleepers (2) on a solid bearing course (1) of asphalt or concrete, whereby the sleepers are provided with a section (7) being fixedly attached to the sleeper (2) foot (9). The section (7) projecting from the sleeper (2) foot (9) downward is positioned  parallel to the rails (3) and is stuck in said bearing course (1) slot (8). Making such superstructure consists of the following operations: formation of a bearing course exhibiting supporting properties of concrete or asphalt mixed material, making two slots (8) in said bearing course (1) surface, preparation of sleepers (2) with sections (7) projecting downward from the sleeper (2) foot and extending in longitudinal direction of rails (3), emplacement of the sleepers (2) onto the bearing course (1) so that the sections (7) reach in the slots (8), filling up residual free spaces in the slots (8) with already prepared adhesive (11) and at least within the range of the section (7) length  and optional covering the bearing course (1) with a material (10) for damping noise. The adhesive is represented by a polymeric adhesive exhibiting high affinity to both the steel section (7) and the bearing course (1) materials.
Patent CZ-284245-B6 (CZ)
Title: Method of reducing commutator machine running-in time
Inventor: BERGHANEL DIETMAR DIPL-ING
IPC: H02K5/14
Filed: 1994-11-25
Abstract: The method shortens the starting time of commutator machines by temporally limiting the application of steps which amplify the wear of the carbon brushes. During a first time period, the commutator machine is operated at a frequency or mixture of frequencies in the upper harmonic range until the maximum steady-state temperature is reached. During the following time periods, the machine is operated at the basic frequency.
Patent CZ-298269-B6 (CZ)
Title: Pharmaceutical composition of tizoxanide and/or nitazoxanide
Inventor: ROSSIGNOL JEAN-FRANAOOIS
IPC: A61P31/04
Filed: 1998-05-06
Abstract: In the present invention, there is disclosed a pharmaceutical composition containing as active component at least one compound being selected from the group consisting of the compound of the general formula (I) and the compound of the general formula (II), and further containing at least one pharmaceutically acceptable acid in an amount effective to improve stableness. The active agent is preferably in the form of particles having a particle size smaller than 200 microns and a mean particle size of greater than 10 microns. The pharmaceutical compositions according to the present invention are particularly useful for the treatment of opportunistic infections in persons with compromised or suppressed immune systems, and in the treatment of infections of trematodes.
Patent SK-282202-B6 (SK)
Title: Ortho-substituted benzoic acid derivatives, preparation process and use thereof and pharmaceutical preparation containing it
Inventor: GERICKE ROLF
IPC: C07C317/46
Filed: 1995-08-25
Abstract: 2,4,5-Trisubstd. benzoic acid derivs. of formula (I) and their salts are new: R1 = A, CF3, CH2F, CHF2, C2F5, CN, NO2, halogen, ethynyl or XR4; R2 = CF3, S(O)nR6 or SO2NR4R5; R3 = CN, halogen, COA, CHO, CSNR7R8 or CONR7R8; Q = N=C(NH2)2, Cl, Br, OA, OCOA, OCOAr, OH or another reactively esterified OH gp. or nucleophilically substitutable leaving gp.; R4 = H, A, 5-7C cycloalkyl, 6-8C cycloalkylmethyl, CF3, CH2F, CHF2, CH2CF3, Ar or CH2Ar; R5 = H or A; or R4+R5 = 4-5C alkylene, opt. with a CH2 gp. replaced by O, S, NH, NA or NCH2Ar; R6 = A or Ar; R7, R8 = H, A, 1-10C alkanoyl or 7-11C aroyl; A = 1-6C alkyl; X = O, S or NR5; Ar = phenyl opt. substd. by 1-3 of A, OA, NR4R5, halogen or CF3; n = 1 or 2.
Patent SK-281483-B6 (SK)
Inventor: BILLER FLORIAN
IPC: A23P10/00
Filed: 1996-11-20
Abstract: Tvarovaná náhradka smotany na pridávanie do ostrých jedál sa tvorí spracovaním 20 až 60 % smotanového prášku a 10 % až 50 % tukového prášku v 15 až 50 % matrice z čistého tuku. Náhradka smotany môže byť vo forme hrudiek, kociek alebo ako granulát.ŕ
Patent SK-277754-B6 (SK)
Title: Hollow microparticles and method of their manufacturing
Inventor: SUROVEC JAN
IPC: C03B19/12
Filed: 1992-05-25
Abstract: Hollow microparticles, which basic material creating their walls contains alkaline silicate with 1,5 to 5,2 mols of silicon h oxide on mol M/sub_2/O, where M is sodium and/or pottasium, hydroxide of type MOH, where M is sodium and/or potassium ammonium cation and/or borate sodium with mol proportion of sodium to boron from 0,2 to 0,5 in mass 0,01 to 1,3 mol on mol of alkaline hydroxide, at which mass proportion of dry matter of alkaline hydroxide and boron oxide or borate sodium to dry matter of alkaline silicate is 0,01:1 to 0,26:1 and its surface is covered by organosilicate which total contents in hollow microparticles is in homogenization of mixture in liquid phase, it's drying, separating and expansion with next surface treatment.
Patent SK-285863-B6 (SK)
Title: Pharmaceutical combination composition comprising the AT1-antagonist valsartan and amlodipine
Inventor: DE GASPARO MARC
IPC: A61K31/00
Filed: 1999-07-09
Abstract: The invention relates to a pharmaceutical combination composition particularly effective in the treatment of hypertensive disease comprising (i) the AT1-antagonist valsartan or a pharmaceutically acceptable salt thereof, (ii) amlodipine or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
Patent CZ-298768-B6 (CZ)
Title: Aqueous preparation of moxifloxacin and sodium chloride, process of its preparation and use
Inventor: KAAHN BERND
IPC: A61K31/47
Filed: 2000-07-25
Abstract: The present invention relates to an aqueous preparation containing moxifloxacin hydrochloride and sodium chloride, the formulation of said preparation as a drug and the use of said preparation for preparing a medicament for preventing or treating bacterial infections in humans or animals.
Patent CZ-293989-B6 (CZ)
Title: Transdermal penetration accelerants
Inventor: VAVROVA KATERINA MGR
IPC: C07C235/12
Filed: 2003-02-24
Abstract: In the present invention, there are disclosed ceramide analogs of the general formula I, in which Ri1 represents hydrogen or CHi2OH; Ri2 denotes alkyl containing 8 to 16 carbon atoms; Ri3 represents alkyl containing 7 to 15 carbon atoms, cis-heptadec-8-en-1-yl, CH(Ri1)NHCORi4, CH=CHCOORi4 or CH(OH)CH(OH)COORi4 wherein Ri1 is as specified above, Ri4 represents alkyl containing 7 to 16 carbon atoms. These compounds are used as accelerants of transdermal penetration for the preparation of transdermal or topic pharmaceutical and cosmetic compositions. There are further described pharmaceutical and cosmetic compositions containing ceramide analogs of the general formula I in an amount ranging from 0.1 to 5.0 percent by weight, based on the composition total weight, preferably in an amount ranging from 0.1 to 1,0 percent by weight, based on the composition total weight.
Patent CZ-295385-B6 (CZ)
Title: Utility lighter
Inventor: MCDONOUGH JAMES M
IPC: F23Q2/28
Filed: 1998-01-21
Abstract: The present invention relates to a utility lighter including a housing (12) having a handle (14) at one end (16) and a nozzle (18) with outlet (64) at another end (20) and including a fuel supply (22) connected for selective fluid communication with the nozzle (18). It further includes a valve (28) actuator (30) connected with the fuel supply (22) for selective liberation of fuel from the furl supply (22). An ignitor assembly (34) is operatively connected to the housing (12) for generating a spark proximate the nozzle (18) outlet (64) and an actuating assembly is connected to the housing (12) proximate the handle (14) and operates to both dispense fuel from the fuel supply (22) and to activate the ignitor assembly (34). A linking mechanism (120, 134, and 140) is provided between the ignitor assembly (34) and the valve (28) actuator (30) to initiate the flow of fuel from the fuel supply (22) prior to generation of a spark such that a spark is generated when fuel is present at the nozzle (18).