baber/WOPTO huggingface dataset:
Patent EP-0979922-B1 (EP)
Inventor: ROBERTS NIGEL
IPC: E21B17/042
Filed: 1999-07-26
Granted: 2004-01-28
Abstract: A tube rod for rock drilling has a female threaded end (12) into which a male thread (either on a male connector or on the end of another tube rod) can be screwed to form part of a drill string. The female threaded end (12) is (a) of larger external diameter than the central section (10) of the rod and (b) has an annular groove (42%) with an asymmetrical profile, the flank of this groove nearest to the threaded end being steeper than the other flank. <IMAGE>
Patent EP-1044247-B1 (EP)
Inventor: PATEL ARVIND D
IPC: E21B17/00
Filed: 1999-01-08
Granted: 2003-04-09
Abstract: A conductive fluid has been formulated for use in a method of electrically logging subterranean wells. The conductive fluid includes a miscible combination of an oleaginous fluid, a water soluble alcohol, and an electrolytic salt. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The medium may further include gelling agent, weight material, surfactant, or corrosion inhibitors. The oleaginous fluid may preferably be a preferentially-oil-soluble glycol alone or in combination with mineral oil, vegetable oil, synthetic oil, silicone oil or combinations and mixtures of these. The alcohol may preferably be a water soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol and the like. The electrolytic salt or brine may be an inorganic or organic salt, examples of which include sodium chloride, sodium bromide, potassium chloride, ammonium chloride, magnesium chloride, calcium chloride, calcium bromide, sodium acetate, potassium acetate, sodium citrate, or combinations thereof.
Patent EP-1051376-B1 (EP)
Inventor: SWAIN CHARLES F
IPC: C07B39/00
Filed: 1999-01-18
Granted: 2004-11-17
Abstract: La présente invention concerne un procédé de production d'un composé organique fluoré consistant à: (a) faire réagir d'abord une matière organique de départ avec un agent de fluoration en présence d'un catalyseur de fluoration liquide dans des conditions efficaces pour vaporiser un ou plusieurs produits dérivés organiques chlorés et produire un flux de produit gazeux renfermant le composé organique fluoré précité et le/lesdits dérivés organiques chlorés, (b) récupérer ensuite le composé organique fluoré du flux de produit; cette invention concernant par ailleurs un système permettant de réaliser le processus susmentionné et de récupérer le dérivé chloré.
Patent EP-1064326-B1 (EP)
Inventor: FOCQUET KOEN
IPC: C08L23/02
Filed: 1999-03-04
Granted: 2010-06-16
Abstract: Dans l'extrusion de matières polymères, notamment de matières polymères thermoplastiques, il est nécessaire de maîtriser un certain nombre d'attributs physiques du polymère, de sorte que le polymère extrudé présente les caractéristiques de surfaces voulues. Des additifs d'extrusion ont été prévus pour l'amélioration de ces attributs et caractéristiques. L'invention concerne un système additif pour polymères thermoplastiques extrudables, des compositions polymères extrudables contenant ledit système additif, et des procédés d'extrusion dans lesquels des polymères contenant le système additif de l'invention sont utilisés. L'additif d'extrusion de l'invention se compose de: (i) un polymère fluorocarboné, (ii) un polymère de poly(oxyalkylène), (iii) oxyde de magnésium, et (iv) éventuellement un stabilisant. La composition extrudable comprend: (A) un polymère extrudable (ex: une quantité prédominante de solides, comme au moins 50 % en poids), et (B) une quantité efficace d'adjuvant de traitement stabilisé (additif d'extrusion).
Patent EP-1080158-B1 (EP)
Inventor: NELSON GORDON
IPC: C07K14/415
Filed: 1999-04-08
Granted: 2002-09-11
Abstract: An adhesive composition is described which comprises an extensin protein; either a non-enzymatic bifunctional cross-linking agent; or an enzymatic cross-linker comprising phenol oxidase and a phenol hydroxylase, preferably a mushroom tyrosinase. The extensin is a plant cell wall glycoprotein preferably prepared from carrots. The non-enzymatic bifunctional cross-linker is preferably a di-isocyanate, a quinone or glutaraldehyde. The composition preferably also comprises a co-factor such as catechol or catechin. The adhesive may be used in pharmaceutical compositions, in wound closing preparations, or as a gelling product in foods.
Patent EP-1080235-B1 (EP)
Inventor: MONTEYNE GUIDO
IPC: C21B13/10
Filed: 1999-04-23
Granted: 2002-07-24
Abstract: A method for the reduction of metallic oxides and a rotating-hearth furnace. The method is for the reduction of metallic oxides in a furnace with a ring-shaped rotating hearth in which a carbonaceous reducing agent and metallic oxides are deposited in a strip on a part of the rotating hearth and are then transported in a roughly helical movement to a discharge device. The reducing agent is preheated and mixed with the preheated metallic oxides before and/or during their deposition on the rotating hearth. In a first reducing stage, the volatile components of the carbonaceous reducing agent (mainly methane and hydrogen) are used to initiate the reduction of the metallic oxides and, in a second reducing stage, carbon monoxide is used. The rotating-hearth furnace is subdivided into a charging zone, at least one intermediate zone adjacent to the charging zone, and a discharge zone adjacent to the intermediate zone.
Patent EP-1073485-B1 (EP)
Inventor: LEWIS KENNETH B JR
IPC: A61L24/10
Filed: 1999-04-30
Granted: 2003-03-19
Abstract: Tissue sealant compositions containing human recombinant fibrinogen, human recombinant factor XIII and human recombinant thrombin. Also disclosed are preferred formulations and uses therefor.
Patent EP-1097012-B1 (EP)
Inventor: ABRAHAM REINER
IPC: B21C37/20
Filed: 1999-06-10
Granted: 2002-11-13
Abstract: L'invention concerne un procédé pour la réalisation d'un profilage intérieur (4) d'une pièce extérieure métallique du type douille par rétreinte, ce profilage intérieur (4) correspondant au moins sensiblement à une partie intérieure (2) métallique insérable au moins par section dans le sens longitudinal de la pièce extérieure (1), dans la région des sections emmanchables des deux pièces (1, 2). Un profilage extérieur (5) peut être réalisé sur la pièce intérieure (2) qui s'insère au moins par sections dans la pièce extérieure (1). Un profilage intérieur (4) de la pièce extérieure (1) correspondant au profilage extérieur (5) de la pièce intérieure (2) est réalisé avec un outil de rétreinte (3) agissant de l'extérieur sur la pièce extérieure (1). En variante, le profilage intérieur (4) de la pièce extérieure (1) peut également être utilisé pour produire le profilage extérieur (5) de la pièce intérieure (2) au moyen d'un outil de rétreinte (3) agissant de l'extérieur sur la pièce extérieure (1).
Patent EP-1089831-B1 (EP)
Inventor: DIDRIKSEN JAN
IPC: B07C3/00
Filed: 1999-06-29
Granted: 2004-05-06
Abstract: A method and a system for automatically or semi-automatically processing postal items, wherein items are conveyed along a first system for capturing a first address signal from address identification means, such as a bar code, a printed or written address block or a radio frequency tag, optionally provided on the items. The address signal is processed in order to determine whether or not it is sufficient in order to automatically sort and distribute the item, and a further address signal may be derived. The items are sorted according to their respective address signals. OCR and/or video equipment may be applied for capturing identification data, and a cross-belt or tilt-tray conveyor system may be applied for sorting items. Discharge stations may comprise a post-sorting or post-conveying system for rearranging and circulating a plurality of items. The postal items may comprise, e.g., letters or parcels.
Patent EP-1089861-B1 (EP)
Inventor: NEUBAUER ANTHONY CHARLES
IPC: C08L101/00
Filed: 1999-06-25
Granted: 2003-05-28
Abstract: There is provided a method which reduces fines while maintaining the bulk handling advantages of granular or particulate elastomers such as those produced in gas phase processes and which affords continuous bulk handling of synthetic rubbers or elastomers such as those produced in solution and/or suspension processes. The method comprises (1) feeding an crumb form elastomer or a granular elastomer which contains fines along with optionally one or more filler materials to a mixer/extruder where it is masticated and melted into a compound; (2) pumping the compound through an orifice of the mixer/extruder, and (3) cutting and forming the compound into shaped pellets ranging in size from about 0.5 to 30 mm.
Patent EP-1109701-B1 (EP)
Inventor: PORTER MARSHALL RAY
IPC: B29C45/17
Filed: 1999-07-27
Granted: 2003-11-05
Abstract: A bumper beam extension for a bumper beam having left and right bumper beam extensions and a method for manufacturing the bumper beam extensions to provide impact crush resistance is disclosed. The bumper beam extensions include an insert end contoured and sized to fit in the end of the bumper beam and a main body portion having substantially a rearwardly facing saddle shape that includes an upper wing and a lower wing joined at a bight section. The main body portion is blow molded to configure the bight section to taper from a preselected distance from a forward wall of the main body portion until it is face to face with the forward wall. For increased stiffness, the bumper beam may be welded to a frame of a vehicle.
Patent EP-1105103-B1 (EP)
Inventor: SPENGLER REINHARD
IPC: A61K9/20
Filed: 1999-08-11
Granted: 2003-06-25
Abstract: The invention describes a tablet with two end faces and a circumferential face, in which the mutually opposite end faces of the tableta) overall are nonplanar and are arranged at least approximately parallel to one another, andb) are each provided with a score on the top and bottom sides, the scores lying in the center of the tablet parallel to and above one another.
Patent EP-1098803-B1 (EP)
Inventor: FISCHER EBERHARD
IPC: B61L1/00
Filed: 1999-07-13
Granted: 2003-01-29
Abstract: The invention relates to a method for detecting a defect (29) in a railroad wheel (3) of a railroad train (1). According to the inventive method, the railroad train (1) is moved at a predetermined traveling velocity (V). A first ultrasonic probe (31) mounted on a inspection car (11) in a moveable manner is acoustically coupled, preferably to the running surface (19) of the railroad wheel (3). The inspection car (11) is also moved in a direction of travel at said traveling velocity (V). Additional, ultrasonic probes (33, 35, 37) which are arranged in an offset and/or oblique manner can be provided. The directions of emission of the ultrasonic probes (31, 33, 35, 37) are preferably panned in a tangential plane (51) by a component. The invention also relates to a corresponding device for carrying out the inventive method.
Patent EP-1075551-B1 (EP)
Inventor: HOEHE MARGRET
IPC: C12Q1/68
Filed: 1999-05-03
Granted: 2001-12-19
Abstract: The present invention relates to a novel method for non-radioactive detection of membrane-bonded nucleic acids, including nucleic acids that, for instance, contain single nucleotide polymorpbisms (SNP's), DNA arrays (cosmide, yeast, artificial chromosones (YAC's), bacterial artificial chromosones (BAC's), cDNA's, PCR fragments, oligonucleotides), RNA arrays and all nucleic acid fragments that are tranfered from gels (agarose or PAA) to membranes, including genomic DNA/plasmid DNA fragments (southern) and mRNA's (northern). The invention also relates to a test kit to carry out said method.
Patent EP-1094951-B1 (EP)
Inventor: HARRIS PAUL GREGORY
IPC: B42D25/328
Filed: 1999-06-09
Granted: 2004-03-10
Abstract: A method of providing an optically variable effect generating structure on a substrate. The method comprises a) providing an adhesive on the substrate; b) depositing a metal powder on the adhesive; and, c) embossing an optically variable effect generating structure into the metal powder. A method of providing an image on a substrate, the method comprising a) providing an adhesive on the substrate in a pattern corresponding to an image; and, b) depositing a metal powder on the adhesive.
Patent EP-1131403-B1 (EP)
Inventor: DEVINE ELIZABETH
IPC: C12G3/04
Filed: 1999-11-22
Granted: 2003-10-29
Abstract: The present invention concerns a beverage food product. The beverage food product is in a gel phase at room temperature and is converted to a liquid phase at a temperature elevated above room temperature. The invention has a particular application to a bi- or multi-layered beverage food product, in particular a cream liqueur. The invention provides a beverage food product whose top layer comprises less than 70% (w/w) water. This overcomes a prior art problem of color migration between layers.
Patent EP-1116414-B1 (EP)
Inventor: CLAES RUDI A M
IPC: B29C70/60
Filed: 1999-09-09
Granted: 2002-06-12
Abstract: An otoplastic for a hearing aid, which otoplastic is manufactured from a UV light-curable synthetic resin composition, in particular an acrylate composition, to which a ceramic filler including at least 50% by weight Al2O3 is added to improve the properties of the otoplastic.
Patent IE-86775-B1 (IE)
Title: Nozzle for dispensing slurry and a slurry spreading apparatus
Inventor: JAMES O'KANE
IPC: B05B13/00
Filed: 2011-01-04
Abstract: A discharge nozzle for dispensing slurry onto the ground, said discharge nozzle having an elongate slot-like outlet opening and a slurry spreading apparatus comprising a slurry resevoir or tank for carrying a volume of slurry, a manifold for receiving slurry from said resevoir or tank, a plurality of outlet hoses communicating with the manifold, a discharge nozzle being provided on a terminal end of each outlet hose. <Figure 16>
Patent IE-87421-B1 (IE)
Title: Apparatus for preparing animal feed
Inventor: NORMAN SLOAN
IPC: A23K40/00
Filed: 2019-08-15
Abstract: An apparatus for preparing animal feed comprising a plurality of press devices each comprising a die including one or more apertures, a press means for pressing a feed material through the one or more apertures of the die, a housing enclosing said die and press means, wherein said housing incorporate a chamber receiving feed pellets extruded through the one or more apertures of said die by said press means, said chamber having an outlet communicating with an outlet chute, wherein said plurality of press devices comprises an upper press device located above a lower press device, the outlet chute of the upper press device communicating with said chamber of the housing of the lower press device such that feed pellets extruded through the one or more apertures of the die of the upper press device are passed through the housing of the lower press device and pass into the outlet chute of the lower press device.
Patent IT-1266624-B1 (IT)
Title: Disc brake with device for rotating the disc in the direction opposite to that of the wheel
Inventor: FAICCHIA MARIO
IPC: F16D/
Filed: 1993-10-26
Granted: 1997-01-09
Abstract: A disc brake is fitted with a device for reversing rotation of the disc with respect to that of the wheel. This device comprises a first toothed bevel gear 5 keyed on the hub 4 of the wheel, the toothing of which is turned towards the outside of the fork, and a second toothed bevel gear 6 similar to the first, turned in the opposite direction and on which the disc 9 is fixed and which engages with said toothed bevel gear 5 by means  of a plurality of planets composed of toothed cones 7. These cones 7 are provided with axial holes for fixing to an intermediate disc 8 located between the two conical wheels 5,6 and keyed on the pin 2 of the wheel. <IMAGE>
Patent IT-1281666-B1 (IT)
Title: Dispositivo per il raffreddamento di un variatore continuo di  velocita'
Inventor: POLINI CARLO
IPC: F16H/
Filed: 1996-01-16
Granted: 1998-02-26
Abstract: Un dispositivo per il raffreddamento di un variatolo chiuso ottenuti collegando le portate laterali a una cinghia trapezoidale tesa tra una coppia di 17) dell'altro elemento adiacente (15), in cui le onvogliare un flusso d'aria direttamente a contattari ed in eguale posizione da un lato e dall'altroche costituenti una delle due pulegge.(Fig.4)     nierati degli organi di collegamento (19) per formare un angolo completo (10).
Patent IT-1281688-B1 (IT)
Inventor: BELLIFEMINE FRANCESCO
IPC: A61N1/20
Filed: 1996-01-19
Granted: 1998-02-26
Abstract: It is described a portable device for treating insect bites and the like comprising a piezoelectric body (4, 5; 5a; 5b; 108) to be operated by a striker or a lever system (19; 107; 9a; 9b) to generate a predetermined voltage at the ends of two electrodes or between one electrode and the user's body. <IMAGE>
Patent IT-1304642-B1 (IT)
Title: Granular material transfer method
Inventor: CAMORANI CARLO ANTONIO
IPC: B44D/
Filed: 1998-09-28
Granted: 2001-03-28
Abstract: The method uses a permeable baffle (214) through which a fluid acts on the granular material. The material is transported along on a conveyor belt (201) that acts in cooperation with a secondary conveyor belt that is used to supply the tiles. Successive tiles are fed past the junction between the two conveyors adding a layer of granular material (204, 205) to the tiles that are bonded in place by the fluid.
Patent IT-1295412-B1 (IT)
Inventor: ZANOTTI ANDREA
IPC: C10G9/00
Filed: 1997-10-06
Granted: 1999-05-12
Abstract: An anti-aging additive composition and an operating method to control the quench oil viscosity in an ethylene production plant are described, capable of raising the yield of said plant through a control of the quench oil viscosity related to a significant increase in the operation temperature of the plant fractionating column, said composition comprising an effective quantity with respect to the aging of said oil of at least one component selected in the group constituted by alkylated phenols, alkylated biphenols, diphenols, alkylated diphenols, aromatic amines and nitroxides, precursors and mixtures thereof. <IMAGE>
Patent JP-3010531-B1 (JP)
Title: ワンタッチ紐孔カバ―及び紐孔カバ―。
IPC: A43C5/00
Filed: 1999-03-08
Granted: 2000-02-21
Abstract: 【要約】
【課題】  紐孔部に容易に個性のあるデザイン、又は文 字や数字で名前、イニシャル等を付与することができる ワンタッチ紐孔カバーと紐孔カバーを提供することであ る。
【解決手段】  紐孔カバー１を、紐孔に通す足部４と、 足部４の上に張り出す頭部５で形成して、頭部５に種々 のデザインを施せるようにするとともに、頭部５に設け た紐通し部９と足部４の孔８を側方に開口させ、この開 口１１から紐を紐通し部９と孔８に挿入し、紐を紐孔か ら抜き取ることなく、紐孔カバー１を容易に紐孔に装着 できるようにしたのである。
Patent JP-2922894-B1 (JP)
Title: 屋根用下葺材
IPC: B32B13/14
Filed: 1998-06-12
Granted: 1999-07-26
Abstract: 【要約】
【課題】屋根下葺用シートに効果的に使用できる防水シ ートであって、透湿性、可撓性及び耐候性に優れた透湿 性防水シートの提供。
【解決手段】多孔性繊維質シート基材の一面または両面 に、ポリマー成分、セメント及び必要に応じて更に骨材 を含む組成物に水を加えて混練したものを塗布して形成 される透湿性防水シートであって、好適には透湿度が少 なくとも１５０ｇ／ｍ 2 ・２４ｈ（JIS Z 0208-1976）で あり、かつ耐水圧が少なくとも１００ｃｍ／ｃｍ 2 （JIS  L 1092）である透湿性防水シート。
Patent JP-2945655-B1 (JP)
Title: 駆動力伝達機構
IPC: B23Q3/157
Filed: 1998-06-17
Granted: 1999-09-06
Abstract: 【要約】
【課題】  コスト増を招くことなく、小型化及び高精度 化を図ることが可能な駆動力伝達機構を提供する。
【解決手段】  入力軸１はステッピングモータからの回 転駆動をカム部材２に伝達する。カム部材２の共役カム ２ａは保持板５を介して出力軸７に取付けられたターレ ット３ａ，３ｂとの間で共役関係にあり、ターレット３ ａ，３ｂが共役カム２ａの外周に沿って移動することで 回転駆動が出力軸７に伝達され、出力軸７が回転運動を 行う。カム部材２の端面カム２ｂには保持板５を介して 出力軸７に取付けられたターレット４が当接され、ター レット４にはバネ部材６によって保持板５の当接部分５ ａが当接されている。ターレット４が端面カム２ｂの端 面に沿って移動すると、出力軸７は端面カム２ｂの一番 高い位置と一番低い位置との間で上下動する。
Patent JP-3018247-B1 (JP)
Title: 測定方法、自動測定装置およびプログラムを記録した媒体
IPC: H01L21/66
Filed: 1998-09-07
Granted: 2000-03-13
Abstract: 【要約】
【課題】  測定効率を向上する。
【解決手段】  測定グループ化手段２２は、測定項目に ついて指定された全ての測定条件の測定のうち、測定条 件に共通性のある測定同士をグループ化し、実行順決定 手段２３は、測定条件のパラメータのうち切換時間の長 いものほど切換回数が少なくなるように、グループ化さ れた測定の実行順序を決定して、その決定した順に測定 制御手段２４が測定部１７を制御して測定対象１を測定 する。
Patent JP-2972756-B1 (JP)
Title: 回転式打抜機における円筒形抜型の取付方法及びその取付装置
IPC: B26F1/42
Filed: 1998-10-28
Granted: 1999-11-08
Abstract: 【要約】
【課題】  円筒形抜型の装着（取り付け、取り外し）が 容易で、しかも円筒形抜型の締付による歪みの発生を防 止でき、打抜きの加工精度を向上できる円筒形抜型の取 付方法及びその取付装置を提供することにある。
【解決手段】  円筒形抜型の回転方向に沿った前側をダ イシリンダーの外周面に対して周方向及び軸心方向に移 動不能に位置決め定着すると共に、該円筒形抜型の前側 がシリンダー表面から浮き上がらないように径方向中心 に向けて付勢し、該円筒形抜型の回転方向に沿った後側 を含む他の部分はシリンダーに対して固定せず、解放状 態とし、径方向には多少の遊びを設けて、円筒形抜型が 下側のシリンダーと接触する切断時のみ該抜型に圧力が 掛かるようにする。
Patent JP-3022537-B1 (JP)
Title: 細胞毒性試験方法
IPC: C12Q1/04
Filed: 1998-12-28
Granted: 2000-03-21
Abstract: 【要約】
【課題】  培養細胞の細胞活性を直接、1個1個、正確に 計測し、被毒性試験化学物質の毒性を高い精度で定量化 できる細胞毒性試験方法を提供する。
【解決手段】  接着性細胞を細胞接着性膜パターン表面 上に選択的に接着培養し、続いて被毒性試験化学物質を 溶解した培養液中に一定時間暴露した後、細胞接着性膜 パターン表面上にのみ存在する接着性細胞内部のマグネ シウムイオン濃度変化を計測することによって被毒性試 験化学物質の毒性を定量する。
Patent NO-328242-B1 (NO)
Inventor: VARNELL DANIEL FELIX
IPC: D21H21/16
Filed: 2000-01-26
Abstract: This invention relates to a composition useful for surface treating a sheet substrate for ink jet printing, the composition comprising a salt of a divalent metal, the salt being soluble in an aqueous sizing medium at about pH 7 to about pH 9, the aqueous sizing medium further comprising a carrier agent and a sizing agent. It also includes a method of making an ink jet printing substrate capable of retaining indicia formed by ink jet printing using pigmented ink, the method comprising surface treating the substrate with an aqueous sizing medium containing a divalent metal salt. A method for improving print quality of ink jet printing of pigmented ink on a surface treated substrate made using the composition or method is also disclosed, as is the paper so made, with and without ink jet printed pigmented ink applied thereto. Indicia printed thereon will have improved print quality characteristics.
Patent NO-315902-B1 (NO)
Inventor: VESTRE JAN
IPC: C06B47/00
Filed: 2001-12-27
Abstract: This invention relates to a method for rapid chemical gassing of an emulsion explosive without having toxic nitrogen oxides in the finished emulsion explosive product, when nitrite is used as the gassing component. Urea acts as a gassing accelerator and urea are added in the water lubrication solution or in both the water lubrication solution and in the gassing component. To achieve rapid gassing of an emulsion explosive, the emulsion is prepared at a pH in the range of 0-3, by using an organic acid having at least 3 carbon atoms.
Patent NO-332392-B1 (NO)
Title: Rorfort sandstyringsmetode og -anordning
Inventor: BIXENMAN PATRICK W
IPC: E21B43/10
Filed: 2002-02-08
Abstract: Oppfinnelsen kan være en brønnkomplettering innbefattende et produksjons- rør, en øvre pakning forbundet med en nedre ende av produksjonsrøret 14, en intelligent anordning 24 anbrakt nedenfor den øvre pakning 18, en kontinuerlig styrekabel 30 forløpende fra den intelligente anordning 24 til et forbindelsespunkt, og et sandfilter (21) anbrakt nedenfor fra den intelligente anordning (24) til et forbindelsespunkt, og et sandfilter (21) anbrakt nedenfor pakningen (18). Kompletteringen kan installeres i en brønn i en enkel tur, istedenfor i flere. Sandstyrings operasjoner kan utføres av et serviceverktøy (50) som er nedført gjennom produksjonsrøret (14). Kompletteringen kan innbefatte evnen til å vaske brønnen ettersom kompletteringen føres på plass. Det er også frembrakt tilhørende fremgangmåte.
Patent NO-324353-B1 (NO)
Inventor: EDNER HANS
IPC: G01N21/35
Filed: 2002-06-27
Abstract: A method for quantitative imaging of gas emissions utilizing optical techniques combining gas correlation techniques with thermal background radiation or gas self-emission radiation is presented. A simultaneous recording of images with and without filtering through a gas-filled cell is utilized for the identification of a selected gas. A new calibration method provides the display of the integrated gas concentration spatially resolved in the generated final image. The procedure includes methods for a correct subtraction of the zero level, consisting of self-radiation from the dual-image camera device including the as correlation cell and electronic offset, and for the calculation of the specific absorption as a function of the difference temperature between the background and the gas emission.