baber/WOPTO huggingface dataset:
Patent TW-I782469-B (TW)
Title: 高濃度含硼廢水處理方法
Inventor: Zhang yi-zhang
IPC: C02F1/66
Filed: 2021-03-31
Granted: 2022-11-01
Abstract: 本案係一種高濃度含硼廢水處理方法，其包括下列步驟：將一高濃度含硼廢水注入一pH值調整槽；將一鹼性溶液注入該pH值調整槽中以調節該高濃度含硼廢水之pH值；將調整pH值後之該含硼廢水注入一除硼電絮凝槽中，並加入一導電性電解質以進行一電絮凝程序；將該電絮凝程序所產生之污泥從槽底排出至一含硼污泥脫水槽中進行脫水；將經該電絮凝程序後之含硼廢水輸出至一第一吸附槽，並加入一第一吸附材至該第一吸附槽中，以便對該含硼廢水進行吸附及過濾；將經該第一吸附槽過濾後之含硼廢水輸出至一第二吸附槽，並加入一第二吸附材至該第二吸附槽中，以便對該含硼廢水進行進一步的吸附及過濾；以及將經該第二吸附槽吸附及過濾後之含硼廢水輸出至一過濾槽，進一步進行過濾後即可輸出低濃度之含硼廢水。
Patent TW-I773265-B (TW)
Title: Method for assembling an imaging apparatus
Inventor: LEE TING-CHENG
IPC: G02B9/04
Filed: 2021-04-21
Granted: 2022-08-01
Abstract: A method for assembling an imaging apparatus, includes providing a complex prism module; disposing a far chart separated from a light incident plane of the complex prism module by a far chart distance; disposing a near chart in parallel to the far chart and separated from the light incident plane by a near chart distance, wherein the far chart distance is larger than the near chart distance; projecting a calibration beam toward the light incident plane, wherein a projection path of the calibration beam is perpendicular to the far chart and the near chart; according to the reflected light spot, formed by reflecting the calibration beam with the light incident plane, on the far chart or near chart, adjusting an angle of the light incident plane relative to the far chart and the near chart, to make a reflection path after the correction beam is reflected coincide with the projection path; and temporarily disposing two cameras on the complex prism module, to respectively capture images toward a first light-emitting surface and a second light-emitting surface of the complex prism module.
Patent TW-I761202-B (TW)
Inventor: Wang wei-jie
IPC: G01B11/30
Filed: 2020-09-09
Granted: 2022-04-11
Abstract: 本發明公開一種晶片共面度檢測設備，其包含至少一個承載模組與一偵測器。所述承載模組包含一承載台及安裝於所述承載台上的一光學玻璃。所述光學玻璃具有位於相反側的一承載平面與一入光面、及形成於所述承載平面的一對位圖案。所述承載平面能用來供至少一個晶片的多個焊墊設置，以使至少一個所述晶片的部分所述焊墊能通過重力而抵接於所述承載平面。所述偵測器對應於所述光學玻璃設置並能通過偵測所述對位圖案而得知所述承載平面的位置，用以偵測每個所述焊墊以得知其與所述承載平面之間的間距。
Patent TW-I773302-B (TW)
Inventor: HANSFORD KEITH MICHAEL
IPC: G03F9/00
Filed: 2021-05-07
Granted: 2022-08-01
Abstract: 一種使用印刷機印刷工件的方法，所述印刷機具有配備工裝的升降臺，
所述工裝具有多個離散且水準間隔開的支撐表面。其中，控制工件傳送，以便每個工件均能夠止動於所述印刷機內相應的第一位置和第二位置處。所述第一位置和所述第二位置沿著水準傳送路徑間隔開，並且每個位置位於所述升降臺正上方。所述第一位置和所述第二位置中的至少一個位於所述工裝的支撐表面的正上方。還描述了一種通過將它們支撐在兩個不同塔架上來對準工件的方法。
Patent TW-I811677-B (TW)
Title: 石英爐膛燒結爐
Inventor: LI YING-ZHANG
IPC: F27B17/00
Filed: 2021-05-13
Granted: 2023-08-11
Abstract: 本發明係提供一種石英爐膛燒結爐，主要在爐體內設置有至少一組石英爐膛，該爐體可為任意型式之單一燒結爐或是連續式燒結爐；該石英爐膛包括由上、下石英部材組成，該上石英部材為ㄇ字形，該相對之垂直內面具有凹陷部，該下石英部材為上短下長層疊狀之一字形，該上層被該上石英部材所完全罩覆；藉此實施上，該石英爐膛可提供乾淨且防污染之燒製環境，使最終燒製品的純度能達到最接近百分之一百的功效。又，該石英爐膛可於該上石英部之一頂邊形成有一突出之覆蓋部，可令一個以上的石英爐膛在進行搭接時，藉該覆蓋部之遮蔽，達到更好防污染效果。
Patent TW-I780878-B (TW)
Title: Method and device for adjusting posture of exercise
Inventor: LEE CHIA WEI
IPC: G06F3/01
Filed: 2021-08-26
Granted: 2022-10-11
Abstract: An adjustment method and device for an exercise attitude are provided. The adjustment method includes getting an orientation angle of an instantaneous attitude of a body unit; computing a respective relative space angle between the two different orientation angles; generating an exercise appearance data by the respective relative space angle; and one of the following two steps: (A) utilizing a Dynamic Time Warping operation to process a comparison between the exercise appearance data and a standard exercise data for a comparative result of an exercise appearance; and (B) utilizing the exercise appearance data to 
correspondingly generate an exercise exertion sequence data, and utilizing a difference operation to compare the exercise exertion sequence data with a standard exertion sequence data for obtaining a comparative value of an exertion sequence.
Patent TW-I780920-B (TW)
Inventor: PARK TAE MOON
IPC: G03F7/42
Filed: 2021-09-22
Granted: 2022-10-11
Abstract: 本發明是有關於一種移除光阻之剝除劑組成物以及使用其之剝除光阻方法，所述剝除劑組成物可具有優異的光阻剝除力，在剝除製程中抑制底部金屬膜的腐蝕，並有效地移除氧化物。
Patent TW-I791298-B (TW)
Title: 乘載模組和使用該乘載模組的輔具
Inventor: LIN TSUNG-YI
IPC: A61G7/10
Filed: 2021-09-29
Granted: 2023-02-01
Abstract: 本發明揭露一種乘載模組，包括二個裝接基座、二個護欄、二個承載板及背靠組件。護欄藉由第一耦合裝置可轉動的與裝接基座相連接和鎖固。承載板藉由第二耦合裝置可轉動地安裝於二個護欄的底部，當承載板向上掀起時貼近護欄，當承載板水平放置時可用於乘載重量。背靠組件藉由第三耦合裝置可拆卸地與二個護欄相連接和鎖固。主機模組包括主機主體及移位模組，可與多種照護模組搭配組合而成為一照護機，也可加上推移模組而成為移位機。借助該照護機及移位機等使用該乘載模組的輔具系統，失能症者等可進行移動、坐與站轉換等復健。
Patent TW-I788100-B (TW)
Inventor: WEN WEN-YING
IPC: H01L21/336
Filed: 2021-11-16
Granted: 2022-12-21
Abstract: 半導體結構的形成方法包括：依序形成磊晶層及半導體層在基板上。形成溝槽在磊晶層及半導體層中。順應性地形成第一介電層在溝槽中。形成第一導電層在第一介電層上。移除第一介電層的第一部分，以暴露第一導電層的側表面且使第一介電層的第二部分覆蓋半導體層的側表面。移除第一介電層的第二部分，以暴露該半導體層的側表面，使得第一介電層具有階梯部分。形成第二介電層在經暴露的半導體層的側表面、第一介電層的階梯部分及第一導電層上。形成第二導電層於第二介電層上。
Patent TW-I771254-B (TW)
Title: Iron core structure and voltage converter
Inventor: CHEN KAI-FU
IPC: H01F27/34
Filed: 2021-12-30
Granted: 2022-07-11
Abstract: An iron core structure and a voltage converter having the same. The iron core structure includes an iron core, a primary winding and a secondary winding. The iron core includes a first core member and a second core member. The first core member includes a first side leg, a first center leg and a second side leg spaced apart. The second core member includes a third side leg, a second center leg and a fourth side leg spaced apart. The primary winding is arranged on the core leg, and the secondary winding is arranged on the side leg. The first center leg is connected with the second center leg, a first gap is formed between the first side leg and the third side leg, and a second gap is formed between the second side leg and the fourth side leg, so as to increase the magnetic resistance of the side legs, make the primary winding and secondary winding show different leakage inductance values, and meet the diversified needs of power stage circuits.
Patent TW-I795173-B (TW)
Title: Multilingual speech recognition system, method and computer readable medium
Inventor: YANG JYH HER
IPC: G06F40/40
Filed: 2022-01-17
Granted: 2023-03-01
Abstract: The invention discloses a multilingual speech recognition system, method and computer readable medium. A feature parameter extraction module extracts speech feature parameters and language feature parameters from speech signals. A neural network module calculates loss functions of a multilingual speech recognition task and a language recognition task according to the speech feature parameters and the 
language feature parameters, and then weights and integrates the loss functions of the multilingual speech recognition task and the language recognition task to obtain a total loss function. In addition, the neural network module shares the multilingual speech recognition task and the language recognition task in a shared hidden layer for multi-task training, and then outputs speech pronunciation units obtained by the multilingual speech recognition task and language units obtained by the language recognition task.
Patent TW-I814281-B (TW)
Title: 粒子束治療裝置
Inventor: TSUTSUI HIROSHI
IPC: A61N5/10
Filed: 2022-03-17
Granted: 2023-09-01
Abstract: [課題]提供一種減少照射到患者之不必要的粒子束之粒子束治療裝置。
        [解決手段]粒子束治療裝置(1)係將氦離子束照射到患者而進行治療之帶電粒子束治療裝置，其中當從陽離子束產生核種與氦離子束的核種不同的例如重氫束等其他種類的射束時，使氦離子束與其他種類的射束混合存在之混合射束通過偏向電磁鐵(21A)的偏向磁場(AY)之後，由通過選擇部(33)使混合射束中的氦離子束選擇性地通過。
Patent TW-I806533-B (TW)
Title: Deionization and ion-concentrating apparatus without membrane and deionization and ion-concentrating apparatus module without membrane
Inventor: Hu chi-chang
IPC: C02F1/469
Filed: 2022-04-01
Granted: 2023-06-21
Abstract: A deionization and ion-concentrating apparatus without membrane is connected to a power supply and includes a microfluidic channel, two current collectors and an electroactive material. The microfluidic channel is disposed between the two current collectors. The power supply applies voltage to the two current collectors. The electroactive material is coated and connected to at least one of the two current collectors, and the electroactive material shows reversible redox ability. Therefore, with the special structural configuration of the microfluidic channel and the characteristic of the electroactive material, the overall processing efficiency of the deionization and ion-concentrating apparatus can be improved, and a non-membrane structure can be achieved. Thus, the problems of fouling, aging, high maintenance costs and complex operation of the membrane-based device and module can be solved.
Patent TW-I812257-B (TW)
Title: 電子設備組裝裝置和電子設備組裝方法(二)
IPC: H05K13/04
Filed: 2022-06-02
Granted: 2023-08-11
Abstract: (課題)
        本發明提供能夠進行寬度尺寸不同的多種電纜的連接作業的電子設備組裝裝置和電子設備組裝方法。
        (解決方法)
        電子設備組裝裝置（100）具備對把持裝置（126）和機械臂（124）進行動作控制的機器人控制裝置（114），該把持裝置對平坦且具有柔軟性並且前端為自由端的電纜進行把持，該機械臂使把持裝置移動，機器人控制裝置使把持裝置移動而使把持裝置的推壓面推壓於電纜的一面，在把持裝置的把持爪和吸附孔為非動作狀態下，一邊使電纜彎曲，一邊使推壓面相對於電纜的一面滑動，利用在寬度方向上夾持電纜的把持爪夾住電纜，校正電纜的寬度方向上的位置偏移，利用吸附孔來吸附電纜的一面，使把持裝置移動而將電纜的前端插入連接目標的電路基板的連接器。
Patent TW-I811004-B (TW)
Inventor: HUNG SHENG BO
IPC: G06Q10/10
Filed: 2022-07-04
Granted: 2023-08-01
Abstract: 提供一種用於自動勾稽財務的系統以及用於自動勾稽財務的方法。所述系統包括儲存裝置以及處理器。儲存裝置儲存業務資料以及子系統模組。處理器執行月底結算程式以利用業務資料產生月結資料；處理器執行分錄底稿結算程式以利用分錄底稿產生分錄底稿結算檔；處理器執行憑證過帳程式以利用總帳憑證產生總帳科目餘額；處理器對月結資料、分錄底稿結算檔以及總帳科目餘額執行三方勾稽程式；當三方勾稽程式的結果為錯誤時，處理器利用錯誤明細獲得錯誤原因。
Patent TW-I815586-B (TW)
Title: 蓋組件及飲料容器
IPC: B65D47/08
Filed: 2022-08-03
Granted: 2023-09-11
Abstract: 本發明係一種蓋組件及飲料容器，該飲料容器具有該蓋組件及一容器本體，蓋組件用以安裝在上段設有開口之容器本體，其包含蓋本體、蓋體、鉸鏈及防水襯墊，蓋本體具有頂壁部及周壁部，其用以堵塞容器本體的上段開口部；蓋體設置於蓋本體之上方側；鉸鏈以能旋動自如的方式將蓋體連結於蓋本體；防水襯墊能密閉容器本體與蓋本體之間；其中，蓋本體設有液體流通口與氣體流通孔，液體流通口與氣體流通孔以上下方向貫通頂壁部，以能連通容器本體之外部與內部，液體流通口與氣體流通孔被蓋體所覆蓋，自下方側觀察，氣體流通孔能被防水襯墊所覆蓋。
Patent TW-I810096-B (TW)
Inventor: DARROW DAVID
IPC: B41J2/01
Filed: 2018-01-31
Granted: 2023-07-21
Abstract: This disclosure provides a high precision measurement system for rapid, accurate determination of height of a deposition source relative to a deposition target substrate. In one embodiment, each of two transport paths of an industrial printer mounts a camera and a high precision sensor. The cameras are used to achieve registration between split transport axes, and the positions of the high precision sensors are each precisely determined in terms of xy position. One of the high precision sensors is used to measure height of the deposition source, while another measures height of the target substrate. Relative z axis position between these sensors is identified to provide for precise z-coordinate identification of both source and 
target substrate. Disclosed embodiments permit dynamic, real-time, high precision height measurement to micron or submicron accuracy.
Patent ZA-200101052-B (ZA)
Title: Reconfiguring diversity legs during CN-RNC interface streamlining.
Inventor: RUNE GUEORGAN
IPC: H04L12/28
Filed: 2001-02-07
Abstract: In a mobile communications network that employs diversity combining/splitting, CN-RNC interface streamlining can be accomplished more efficiently by reconfiguring the network diversity legs, which are combined into a single data stream by the serving radio network controller, wherein the serving radio network controller is directly connected to the core network via the CN-RNC interface. Reconfiguration of the network diversity legs is accomplished by releasing the transport level connections which support the network diversity legs prior to CN-RNC interface streamlining, and establishing new transport level connections to support the reconfigured, network diversity legs subsequent to CN-RNC interface streamlining. To establish new transport level connections, the serving radio network controller dispatches binding information to each of the destination nodes associated with the network diversity legs. The destination nodes then utilize the binding information to bind network resources to the transport level connections which support the reconfigured network diversity legs between the destination nodes and the serving radio network controller.
Patent ZA-200108115-B (ZA)
Title: Device for treating a surface, in particular a leather surface, such as that of leather shoes.
Inventor: ZIGMANS JOHANNES ANTONIUS GERA
IPC: A47L23/05
Filed: 2001-10-03
Abstract: A device for treating a surface, in particular a textile surface or a leather surface, such as, for instance, the upper surface of leather shoes, with a liquid substance, comprises a holder with a reservoir for this substance and with a sponge-like body via which the substance absorbed from the reservoir can be spread on the surface. Between the reservoir and the sponge-like body there is at least one receiving chamber having an inflow opening communicating with the reservoir. This inflow opening is closed in the condition of rest and can be opened at a movement of the sponge-like body with respect to a plane with which this body is contacted. From the receiving chamber the substance is absorbed by the sponge-like body with delay.
Patent ZA-200108896-B (ZA)
Title: Pressure control system in a water electrolytic cell.
Inventor: FAIRLIE MATTHEW J
IPC: C25B15/02
Filed: 2001-10-29
Abstract: Apparatus and a process for providing oxygen and hydrogen at a desired minimum pressure from an electrolyser comprising an anolyte solution having an anolyte liquid level; a catholyte solution having a catholyte liquid level; oxygen generated at an oxygen pressure above said anolyte; hydrogen generated at a hydrogen pressure above said catholyte for passage through hydrogen outlet means; the method comprising raising the oxygen pressure above the anolyte to effect a positive liquid level pressure differential between said catholyte level and said anolyte level to a pre-selected value to effect closure of said hydrogen outlet means and an increase in the hydrogen pressure to a value to effect opening of said hydrogen outlet means to provide hydrogen at said desired minimum pressure. The hydrogen is provided on demand at a readily available pressure suitable for use, such as in the case of hydrogen in metal hydride production or supply to a compressor for subsequent higher pressure utility; and oxygen for breathing assistance and sanitization purposes. The pressure differential across the cell membrane is low or negligible, notwithstanding the hydrogen and oxygen product pressure.
Patent ZA-200407848-B (ZA)
Title: Pneumatic actuator
Inventor: LASZLO KEREKES
IPC: B60N2/90
Filed: 2004-09-29
Abstract: A pneumatic actuator having a flexible plate, the flexible plate being made of a rigid flexible material. The pneumatic actuator further includes at least two elongate, flexible but poorly extensible pneumatic pressure ducts that are disposed side by side and are in parts connected to the flexible plate to which they are secured and on which they are arranged in such a manner that, when the pressure ducts are pressurized with compressed gas, tangential forces are generated parallel to the flexible plate causing said flexible plate to bend.
Patent ZA-200502665-B (ZA)
Title: Multifunctional adhesive food wraps.
Inventor: HAMILTON PETER WORTHINGTON
IPC: B65D81/28
Filed: 2005-04-01
Abstract: The present invention provides a multifunctional food wrap comprising a material web, an adhesive, and at least one secondary function. The material web is provided with a plurality of protrusions integral with the material web and having spaces therebetween. The adhesive is disposed within the spaces between the protuberances. The at least one secondary function may be a chemical means or a physical means and disposed within the adhesive, the material web, and/or the protuberances.
Patent ZA-200503752-B (ZA)
Title: Method of stimulating hair growth using benzopyrans
Inventor: STEPHEN DOHERTY NIALL
IPC: A61K/
Filed: 2005-05-10
Abstract: The present invention is directed to methods of stimulating hair growth by administering particular benzopyran compounds.
Patent ZA-200800618-B (ZA)
Title: Easy open ream wrap
Inventor: AMAIA COWAN
IPC: B65D75/58
Filed: 2008-01-21
Abstract: This invention concerns a ream wrap package formed by wrapping a sheet of polymeric film (21) around a stack of paper, the sheet having been severed from a web of polymeric film having at least one line of weakness formed therein in the machine direction (MD) and within a region of the transverse direction (TD) the package being formed by wrapping the sheet around the stack of paper to form a rectangular tube with sides overlapping, sealing one side to the other to form a girth seal (24), closing the tube at each end to form an envelope seal with tucked in ends and overlapping flaps (25,25',26,26'), at least one of which is trapezoidal, so that in the formed package there is at least one line of weakness (27) extending along the whole length of a surface of the package outside the girth seal, the line of weakness being positioned so that it terminates at each end of the package within a region of the TD defined by that portion of the overlapping flaps where there are only two layers of overlapping film.
Patent ZA-201006503-B (ZA)
Title: Conveyors and methods for non-uniformly accelerating conveyed articles
Inventor: DEPASO JOSEPH M
Filed: 2010-09-10
Abstract: Conveyors and methods for operating conveyors to accelerate laterally adjacent conveyed articles over different distances. The conveyors provide a conveying surface atop rollers in a conveyor belt. The belt rollers ride on a bearing surface underlying the belt on a carryway. As the belt advances, the rollers riding on the bearing surface rotate in a direction of rotation to accelerate conveyed articles along the belt in the direction of rotation. The bearing surface is shaped so that its length in the direction of belt travel varies across the width of the conveyor.
Patent ZA-202104197-B (ZA)
Title: Cell separation apparatus and methods of use
Inventor: ROLF WOLTERS
Filed: 2021-06-18
Abstract: Cell separation systems and methods of separating cells are disclosed. In an embodiment, the cell separation system comprises a non-transitory storage device comprising a plurality of logic associated with centrifugation programs, wherein execution of a centrifugation program separates a cell volume from a biologic material volume; a heating mechanism electrically coupled to a power supply; a containment mechanism; an assembly removably coupled to the containment mechanism, wherein the assembly comprises: a single-walled bowl comprising a product reservoir, plurality of cell concentration areas contained within the product reservoir, a digestion area, a waste reservoir, and a center column comprising an access tube removably coupled to the product reservoir, a mounting plate, and an alignment mechanism coupled to the bowl to restrict movement of the mounting plate when the first assembly is coupled to the containment mechanism.
Patent ZA-202203783-B (ZA)
Title: Wastewater treatment system
Inventor: YEHOYADA AVIAH ZIDON
Filed: 2022-04-01
Abstract: A system for treating wastewater comprising a coagulation-flocculation assembly having a raw wastewater inlet and a coagulated-flocculated wastewater outlet; and a slurry separator comprising an intake area configured for receiving wastewater slurry from the coagulated-flocculated wastewater outlet, a liquid outlet, a sludge outlet, and a filtration module configured to facilitate percolating of liquid therethrough and forming of a filter cake thereon. The slurry separator being configured to receive slurry at the intake area, separate the slurry to liquid and sludge by the filtration module, remove the liquid via the liquid outlet, and convey the sludge from the intake area to the sludge outlet. The system further comprises a level maintaining arrangement configured to maintain at least a minimal level of the filter cake.
Patent GR-1003695-B (GR)
Title: Multi-purpose cap for glasses
IPC: B65D47/06
Filed: 2001-02-09
Abstract: The invention relates to a multi-purpose cap bearing a  peripheral elevated ridge furnished with an oval-shaped drinking aperture, four small orifices for the vapor escape and a wave-damping provision (nail). The elevated ridge with the oval aperture are designed to ensure safe drinking while the user is driving, walking or moving. The cross-shaped fissures permit the use of the cap even for drinking cold beverages, as it usally occurs in the existing caps. In case of hot beverages, the four little vapor-discharging orifices prevent the liquefaction of the vapors and thereby the alteration of the beverage taste. For safe drinking, the wave-damping provision (nail) minimizes the beverage waving created by the user's moving.
Patent IN-161672-B (IN)
Inventor: SCHRAMM CHARLES H
IPC: C23C18/31
Filed: 1983-09-27
Abstract: An apparatus and method for the electroless plating of articles. A tank (10) is provided for sequentially containing the respective constituent baths corresponding to the steps of the electroless plating process. An article to be plated (38), such as a printed circuit board, is supported in the center of the tank immersed in the constituent bath contained therein. A pair in inwardly facing parallel manifolds (18) and (20) are disposed at opposite ends of the tank. The constituent solution is pumped through a nozzle matrix (35) in the inward facing wall (30) of a first manifold (18) onto the article and is simultaneously sucked away from the opposing side of the article through the matrix of the nozzles (37) defined in the inward facing wall (32) of a second manifold (20). The direction of pumping is alternated for periodically reversing the direction of suction and impingement. The alternating pressure difference created across the surface of the article being plated substantially improves the rate of metal deposition over prior art systems and allows for a uniform and high quality plate over the entire surface of the article. Additionally, through-holes defined in the article are thoroughly and uniformly deposited with electroless metal.
Patent MX-341171-B (MX)
Title: Method for melting and decarburization of iron carbon melts.
Inventor: VALERY G SHVER
IPC: C21C5/46
Filed: 2002-05-31
Abstract: A method and an apparatus for advantageously introducing a flame and a high velocity oxidizing gas into a furnace for metal melting, refining and processing, particularly steel making in an electric arc furnace. The steel making process of an electric arc furnace is made more efficient by shortening the time of the scrap melting phase and introducing an effective high velocity oxidizing gas stream into the process sooner to decarburize the melted metal. In one implementation of an apparatus, improved efficiency is obtained by mounting a fixed burner/lance closer to the hot face of the furnace refractory at an effective injection angle. This mounting technique shortens the distance that the flame of the burner has to melt through the scrap to clear a path to the molten metal and shortens the distance the high velocity oxygen from the lance travels to the slag-metal interface thereby increasing its penetrating power. The method additionally includes supplying a plurality of reaction zones with the high velocity oxidizing gas to decarburize the melted metal. The plurality of reaction zones increases the surface area available for the reaction thereby allowing a more rapid rate of decarburization and a more homogenous metal bath. The reaction zones are supplied with the high velocity oxidizing gas according to an oxygen supply profile which is related to the carbon content of the metal bath. In this manner an optimal amount of oxygen can be introduced into the metal bath to shorten the decarburization process without producing excessive oxidation of the metal bath and excessive free oxygen in the furnace.