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38results about How to "Improve overvoltage" patented technology
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Environmental protection highly effective additive for electrolyzing selenium-free manganese metal and preparation method thereof
InactiveCN101260538ANot corrosiveOperational securityPhotography auxillary processesPolyethylene glycolManganese
The invention belongs to the metallurgical field, and in particular relates to an environment-friendly high-efficient electrolytic selenium-free manganese metal additive and a preparation method for the same. The environment-friendly high-efficient electrolytic selenium-free manganese metal additive is characterized in that: the additive is prepared by raw materials of water-soluble polyacrylamides, animal glue, polyethylene glycol, boric acids and water. The content of various raw materials by weight percent is as follows: 5 to 10 percent of polyacrylamides; 8 to 15 percent of animal glue; 30 to 40 percent of polyethylene glycol; 3 to 5 percent of boric acids; and residual water. The sum of the content of various raw materials by weight percent is 100 percent. The additive is nontoxic and non-corrosive; volatilization and so on can not be generated during the electrolysis process; the operation is convenient and safe; and the environmental protection performance is good. Moreover, the additive is used for electrolytic manganese and is characterized by high current efficiency and good product quality of the electrolytic manganese.
Owner:LUXI XIBANG SCI & TECH
Solid battery and method for regenerating the same
ActiveUS20130164571A1Improve interface resistanceReduce interface resistanceAlkaline accumulatorsPrimary cell maintainance/servicingOvervoltageAlkaline earth metal
Provided are a solid battery which can reduce overvoltage and a regeneration method thereof. The solid battery comprises: an anode capable of absorbing and releasing an alkali metal ion or alkaline earth metal ion; a solid electrolyte layer containing a solid electrolyte having ion conductivity and disposed in a manner to contact the anode; a cathode capable of releasing and absorbing the alkali metal ion or alkaline earth metal ion which moves between the anode and cathode; a heating device to heat the anode to a temperature at which it softens; and a fastening device capable of applying force to closely contact the solid electrolyte layer with the anode. The regeneration method comprises the steps of heating the anode to a temperature at which it softens, and compressing the softened anode, in a direction intersecting a face of the anode which contacts with the solid electrolyte layer.
Owner:TOYOTA JIDOSHA KK
Gas discharge tube
ActiveCN105826149AImprove overvoltageImprove protectionSpark gap detailsSolid cathode detailsOvervoltagePower flow
The present invention provides a gas discharge tube. The gas discharge tube comprises at least two electrodes and an insulation tube body being in sealing connection with the gas discharge tube to form a discharge inner chamber; the gas discharge tube is provided with low-temperature sealing binding configured to seal the discharge inner chamber; and the low-temperature binding generates fusion at a special low temperature, and the discharge inner chamber generates air leakage. When the gas discharge tube is subjected to lightning stroke or surge overvoltage, the gas discharge tube is able to discharge lightning current or overvoltage, and the gas discharge tube is able to leak to cause open circuit so as to rapidly cut off the subsequent current when the gas discharge tube is subjected to a certain continuous power current or oversize power current and cause heating and temperature rising to fuse the low-temperature sealing binding.
Owner:SHENZHEN BENCENT ELECTRONICS CO LTD
Carbonaceous molded body for battery electrode and method of manufacturing same
InactiveUS20180083282A1High charge-discharge efficiencyReduce irreversible capacityElectrode thermal treatmentNegative electrodesPorosityDischarge efficiency
An object of the present invention is to provide a carbonaceous molded body for a battery electrode having high charge / discharge capacity, high initial charge / discharge efficiency, and excellent cycle life. The aforementioned object can be achieved by a carbonaceous molded body for a battery electrode of the present invention, including: carbon fibers where lithium can be doped and dedoped; and a carbonaceous material; wherein the thickness is 1 mm or less, atomic ratio (H / C) between hydrogen atoms and carbon atoms based on elemental analysis is 0.1 or less, porosity determined from bulk density of the molded body and true density of butanol is from 25 to 80%, and volatile matter content is 5.0 wt. % or less.
Owner:KUREHA KAGAKU KOGYO KK
Overvoltage protection method for backlight drive circuit of 2d/3d mode and backlight drive circuit using same
InactiveUS20140184959A1Extend your lifeReduce voltageElectrical apparatusStatic indicating devicesOvervoltageLiquid-crystal display
The present invention provides an overvoltage protection method for backlight drive circuit of 2D / 3D mode and a backlight drive circuit using the method. The method includes: providing a liquid crystal display, the liquid crystal display having a 2D mode and a 3D mode, the liquid crystal display including a backlight drive circuit; the backlight drive circuit using the first overvoltage protection voltage level as an overvoltage protection voltage level when the liquid crystal display is set in the 2D mode; and the backlight drive circuit using the second the overvoltage protection voltage level as an overvoltage protection voltage level when the liquid crystal display is set in the 3D mode, the second the overvoltage protection voltage level being greater than the first overvoltage protection voltage level. Different overvoltage protection voltage levels are provided for the 2D and 3D modes so as to alleviate impact on components by over voltage.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
A DC charging pile with fault-clearing function
PendingCN109217023AImprove power protection functionImprove overcurrent preventionVehicle connectorsCharging stationsElectrically conductiveElectrical and Electronics engineering
The invention discloses a DC charging pile with fault clearing function, A plug terminal is telescopically arranged on the charging gun head, A through hole is axially formed in the center of the cylinder of the plug end, a plurality of first channels are arranged on the periphery of the through hole, a pair of half cross-sectional bodies are movably arranged in the through hole, a plurality of second channels corresponding to the first channels are arranged on the periphery of the half cross-sectional bodies, and the first channels and the second channels are butted to form a conductive plughole for inserting a charging pin interface of an automobile. A half-conical cavity is axially formed in the cross section of the half-section body, a conical cylinder is telescopically arranged in the semi-conical cavity on the left and right sides, Semi-annular grooves are respectively arranged on the side walls of the left and right semi-conical cavities, an annular bump is correspondingly protruded from the outer periphery of the conical cylinder, the annular bump is confined in the semi-annular groove, the width of the semi-annular groove is larger than the width of the annular bump, andthe diameter is larger than the diameter of the annular bump. The invention solves the technical problem that the fault of the DC charging pile is not removed in time.
Owner:YANGZHOU WANTAI ELECTRIC TECH CO LTD
Gas discharge tube
InactiveCN105374653AImprove overvoltageImprove protectionSpark gap detailsSolid cathode detailsOvervoltageLightning strokes
The invention provides a gas discharge tube. The gas discharge tube comprises at least two electrodes and an insulation tube body in sealing connection with the electrodes to form a discharge inner cavity. The gas discharge tube is provided with a low-temperature sealing binding agent for sealing the discharge inner cavity, and the low-temperature sealing binding agent is melted at a specific low temperature to enable the discharge inner cavity to generate leakage. According to the invention, the gas discharge tube, in case of a lightning stroke or surge overvoltages, can have a function of discharging lightning currents or the overvoltages; and when the low-temperature sealing binding agent is melted due to a temperature rise caused by heating in case of certain continuous power frequency currents or overlarge power frequency currents, the gas discharge tube generates the leakage to cause an open circuit, and thus subsequent currents are rapidly cut off.
Owner:SHENZHEN BENCENT ELECTRONICS CO LTD
Environmental protection highly effective additive for electrolyzing selenium-free manganese metal and preparation method thereof
InactiveCN101260538BNot corrosiveOperational securityPhotography auxillary processesPolyethylene glycolManganese
The invention belongs to the metallurgical field, and in particular relates to an environment-friendly high-efficient electrolytic selenium-free manganese metal additive and a preparation method for the same. The environment-friendly high-efficient electrolytic selenium-free manganese metal additive is characterized in that: the additive is prepared by raw materials of water-soluble polyacrylamides, animal glue, polyethylene glycol, boric acids and water. The content of various raw materials by weight percent is as follows: 5 to 10 percent of polyacrylamides; 8 to 15 percent of animal glue; 30 to 40 percent of polyethylene glycol; 3 to 5 percent of boric acids; and residual water. The sum of the content of various raw materials by weight percent is 100 percent. The additive is nontoxic and non-corrosive; volatilization and so on can not be generated during the electrolysis process; the operation is convenient and safe; and the environmental protection performance is good. Moreover, the additive is used for electrolytic manganese and is characterized by high current efficiency and good product quality of the electrolytic manganese.
Owner:LUXI XIBANG SCI & TECH
DC charging column having charging interface with automatic tripping protection
ActiveCN109177756AImprove protectionImprove power protection functionVehicle connectorsCharging stationsProtection mechanismConical cavity
The invention discloses a DC charging column having a charging interface with automatic tripping protection, being characterized in that a plug end is axially telescopically arranged on the end of thecharging gun head; a through hole is axially pierced through the center of the plug end cylinder; a first channel is arranged on the periphery of the through hole; a pair of half cross-sectional bodies are arranged in the through hole; a second channel is arranged on the periphery of the half cross-sectional bodies, and the first channel is butted with the second channel to form an electrically conductive plug hole; a half-conical cavity is axially formed in the cross section of the half-section body, and a conical cylinder is telescopically arranged in the semi-conical cavity on the left andright sides; a pair of cavity channels are axially symmetrically arranged on the inner side end of the plug end; a limiting cavity is arranged on the outer side end of the cavity channel; the inner side end of the conical cylinder is connected with the telescopic end of a telescopic mechanism; a pair of branch linkage bars are symmetrically arranged on both sides of the telescopic end; and the ends of the branch linkage bars are protruded and provided with linkage heads, and the linkage heads restrict movement in the limiting cavity. The DC charging column having a charging interface with automatic tripping protection solves the technical problem that the DC charging column does not have a mechanical overcurrent protection mechanism.
Owner:YANGZHOU WANTAI ELECTRIC TECH CO LTD
Solid battery and method for regenerating the same
ActiveUS9225038B2Increase resistanceIncrease contact areaAlkaline accumulatorsCell seperators/membranes/diaphragms/spacersOvervoltageAlkaline earth metal
Provided are a solid battery which can reduce overvoltage and a regeneration method thereof. The solid battery comprises: an anode capable of absorbing and releasing an alkali metal ion or alkaline earth metal ion; a solid electrolyte layer containing a solid electrolyte having ion conductivity and disposed in a manner to contact the anode; a cathode capable of releasing and absorbing the alkali metal ion or alkaline earth metal ion which moves between the anode and cathode; a heating device to heat the anode to a temperature at which it softens; and a fastening device capable of applying force to closely contact the solid electrolyte layer with the anode. The regeneration method comprises the steps of heating the anode to a temperature at which it softens, and compressing the softened anode, in a direction intersecting a face of the anode which contacts with the solid electrolyte layer.
Owner:TOYOTA JIDOSHA KK
Sock with air regulating channel
InactiveCN101193565AAlternate transformation promotionKeep dryWeft knittingHandkerchiefsEngineeringAir conditioning
Owner:X TECH SWISS
Overvoltage protection method for backlight drive circuit of 2D/3D mode and backlight drive circuit using same
InactiveUS9024540B2Extend your lifeReduce voltageElectrical apparatusStatic indicating devicesOvervoltageLiquid-crystal display
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Waterproof and ventilative outdoor power distribution box with mobile function
InactiveCN104426079AProtection securityImprove power supply reliability and stabilityBoards/switchyards circuit arrangementsClimate change adaptationShort circuit protectionNeutral line
The invention discloses a waterproof and ventilative outdoor power distribution box with a mobile function. The waterproof and ventilative outdoor power distribution box is characterized by comprising a box body, wherein a box door is arranged on the front side of the box body; a small ridge A-bracket box cover is arranged at the top of the box body; weather boards are arranged on two sides of the box cover; trough type air holes are formed between two sides of the box body and the weather boards; two wheels are arranged on each of two ends of the bottom of the box body; a wire inlet hole and a wire outlet hole are formed in the bottom of the box body; a disconnecting link and a breaker are arranged in the box body; a power inlet wire is sequentially connected with the disconnecting link and the breaker. The top cover of the power distribution box adopts a small ridge to exhaust in two ways and to ventilate from two sides; the weather boards are used for preventing rainwater from entering; the safety of electric control equipment can be effectively protected; over-voltage, under-voltage and faulted neutral line protection can be added on the basis of electric leakage and short circuit protection functions through improvement of the breaker; the power supply reliability and stability are increased.
Owner:XIAN SIKUN ELECTRONICS SCI & TECH
Gas discharge tube and metalized electrode used for same
PendingCN105470089AImprove overvoltageImprove protectionSolid cathode detailsOvervoltageElectrical conductor
The invention provides a gas discharge tube and a metalized electrode used for the gas discharge tube. The gas discharge tube comprises at least two electrodes and an insulating tube body in sealing connection with the electrodes to form a discharge inner cavity, wherein at least one of the electrodes is an insulating material metalized electrode; the metalized electrode comprises a discharge surface for gas discharge and a conducting surface for being connected with an external circuit; and the discharge surface is electrically connected with the conducting surface. When the gas discharge tube provided by the invention suffers from lightning strokes or surge overvoltage, the function of releasing lightning current or overvoltage can be achieved; moreover, when the gas discharge tube suffers from certain continuous power frequency current or ultrahigh power frequency current to warm because of discharge heating until a metal cover layer or a metalized layer on the discharge surface is melted, the discharge surface exposed inside the discharge inner cavity is an insulator or a poor conductor, and discharge is not realized or the discharge effect is weakened, so that the follow current is effectively intercepted.
Owner:SHENZHEN BENCENT ELECTRONICS CO LTD
Device for processing apparatus, particularly for laser processing apparatus, and laser processing apparatus
InactiveCN107052575AGreat suctionImprove overvoltageLaser beam welding apparatusLaser processingEngineering
The invention relates to a device (10) for sucking away the discharge during processing for a processing apparatus, particularly for a laser processing apparatus. The device includes a pump channel (15) for guiding the discharge, wherein the pump channel (15) is effectively connected with a tool (20) capable of generating low pressure. The at least one sectional part (21) of the pump channel (15) is arranged in the effective connection with a mechanism (25) for generating overpressure, and the mechanism (25) applies a pneumatic overpressure to the flow cross-section of the pump channel (15).
Owner:ROBERT BOSCH GMBH
Rail transit grounding carbon brush abrasion monitoring and self-adaptive regulation and control system
ActiveCN113120034APromote circulationImprove overvoltageSignalling indicators on vehicleUsing optical meansData acquisitionLaser sensor
The invention discloses a rail transit grounding carbon brush abrasion monitoring and self-adaptive regulation and control system. A sensor monitoring and control device is arranged on each grounding carbon brush of working grounding and protection grounding between a vehicle body and a steel rail; and the sensor monitoring and control device is composed of a current transformer, a current detection module, an A / D analog-to-digital conversion module, a signal comparator, a microprocessor module, a signal amplifier, a data acquisition card, a filtering module, a pressure-sensitive sensor, a laser sensor and a variable resistance module. According to the invention, the current of each wheel set can be effectively balanced to balance the abrasion degree of the grounding carbon brush, so that the durability and economical efficiency of the grounding system of the motor train unit are improved, and the over-high economic cost and labor and time cost caused by inconvenient detection of the grounding carbon brush in the train body maintenance process are avoided.
Owner:SOUTHWEST JIAOTONG UNIV
Electrolyte and lithium secondary battery comprising same
ActiveCN111492525AInhibit growthSuppresses sudden changes in lithium ion concentrationNegative electrodesPositive electrodesPolyethylene oxidePhysical chemistry
Owner:LG ENERGY SOLUTION LTD
Method for preparing carbon nanostructure comprising molybdenum disulfide, lithium secondary battery cathode comprising carbon nanostructure comprising molybdenum disulfide, prepared thereby, and lithium secondary battery comprising same
ActiveCN112088451AImprove responseHigh electrochemical catalytic activityElectrode thermal treatmentPositive electrodesDischarge efficiencyElectrical battery
The present invention relates to a method for preparing a carbon nanostructure comprising molybdenum disulfide and, more specifically, provides a method for preparing a carbon nanostructure having molybdenum disulfide located on the surface thereof, by melt-diffusing and heat treating a mixture of a molybdenum precursor, a carbon nanostructure and sulfur. In addition, the present invention relatesto: a lithium secondary battery cathode comprising, as an additive, a carbon nanostructure comprising molybdenum disulfide; and a lithium secondary battery comprising same, and in the lithium secondary battery comprising the cathode in which the carbon nanostructure comprising molybdenum disulfide is applied, the carbon nanostructure comprising molybdenum disulfide adsorbs lithium polysulfide (LiPS) to be generated during charging / discharging of the lithium secondary battery, thereby increasing the charging / discharging efficiency of a battery and improving lifespan characteristics.
Owner:LG ENERGY SOLUTION LTD
Constant current source device for driving laser diode and control method thereof
PendingCN113377146AEasy to driveEasy to integrateElectric variable regulationPhysicsConstant current source
The invention relates to a constant current source device for driving a laser diode and a control method. A remote control interface is connected with an MCU through an RS232 interface, a current setting and feedback interface is connected with the MCU, a power interface is connected with a power module and a DCDC module, the MCU is connected with an MOS tube driving module, the MOS tube driving module is in driving connection with a BUCK circuit of the DCDC module, the BUCK circuit is connected with a laser diode interface, the voltage measuring circuit and the current measuring circuit are respectively connected with the ADC module and respectively connected with the MOS tube driving module, the temperature sensor is connected with the ADC module, and the MCU is connected with the ADC module. A constant current source driving device which is wide in self-adaptive working voltage, wide in working current range and high in efficiency is adopted to achieve driving which is easy to integrate, small in size, low in cost and low in heating value, the working voltage ranges from 5 V to 30 V, the maximum working current reaches 20 A, the requirement for most laser diodes is met, and the maximum working voltage and the maximum working current can be set.
Owner:苏州贝林激光有限公司 +1
Electrode for electrolysis
PendingCN114008249AImprove overvoltageExcellent alkaline durabilityLiquid/solution decomposition chemical coatingElectrodesOvervoltageElectrolysis
Owner:LG CHEM LTD
Electrode for Electrolysis
PendingUS20220235477A1Improve overvoltageIncreased durabilityLiquid/solution decomposition chemical coatingElectrodesOvervoltageElectrolysis
The present disclosure relates to an electrode for electrolysis which includes a metal base layer, and a coating layer containing a ruthenium oxide, a cerium oxide, and a nickel oxide, wherein the coating layer is formed on at least one surface of the base layer. The electrode for electrolysis of the present disclosure is characterized by exhibiting excellent durability and improved overvoltage.
Owner:LG CHEM LTD
Method for preparing iron sulfide, cathode comprising iron sulfide prepared thereby for lithium secondary battery, and lithium secondary battery comprising same
PendingCN112385061AHigh purityImprove responsePositive electrodesNon-aqueous electrolyte accumulator electrodesElectrical batteryIron sulfide
Owner:LG ENERGY SOLUTION LTD
DC power distribution network energy router based on PWM/diode hybrid rectification structure, and control method for DC power distribution network energy router
ActiveCN108270356AEasy to implementStable controlDc network circuit arrangementsApparatus with intermediate ac conversionLow voltageTransformer
The invention discloses a DC power distribution network energy router based on a PWM / diode hybrid rectification structure, and a control method for the DC power distribution network energy router. Theenergy router comprises a high-voltage side power transformation unit, a low-voltage side PWM / diode hybrid rectification unit, and a medium-high frequency three-phase AC transformer, and is used forachieving the interconnection of DC buses at different voltage levels in a DC power distribution network in a power distribution network. The low-voltage side PWM / diode hybrid rectification unit comprises a low-voltage side PWM rectification unit and a plurality of low-voltage side diode rectification units. The low-voltage side PWM rectification unit employs the AC / DC transformation topology based on a full-control device, and the low-voltage side diode rectification units employ the three-phase non-control rectification topology based on a diode non-control device. The medium-high frequencythree-phase AC transformer employs one-input multi-output coupling mode. The energy router can achieve the bidirectional transmission of electric energy, is simple and reliable in control, is strong in through-current capability, is small in number of used devices, and greatly reduces the cost. When the power of a load fluctuates, the power output can be adaptively adjusted.
Owner:ZHEJIANG UNIV
A magnetic pole core with damping strips for a high-speed rotating salient pole generator
ActiveCN104505959BAvoid the problem of unsymmetrical operation of three-phase loadsImprove overvoltageSalient polesPunchingMagnetic poles
Owner:CHENGDU CRRC ELECTRIC MOTOR CO LTD
Charging protection device of new energy automobile
PendingCN114824940AImprove protectionEffective protectionCharging stationsCoupling device detailsNew energyStructural engineering
The invention discloses a charging protection device of a new energy automobile, a charging gun head is provided with a plugging end, the plugging end is provided with a first through hole in a penetrating manner, the first through hole is internally provided with a pair of half-section bodies in a radial telescoping manner, and the charging gun head is internally provided with a telescoping mechanism; the telescoping mechanism controls the radial telescoping process of the half-section body in the first through hole, the telescoping end of the telescoping mechanism is provided with an ejector pin disc, and the axial outer side end of the ejector pin disc is provided with ejector pins in one-to-one correspondence with conductive plugging holes of the charging gun head. The length of the ejector pin is not smaller than that of the conductive plug hole, and the ejector pin is arranged in the conductive plug hole in a telescopic mode. According to the invention, the protection capability of the new energy automobile in the charging process is improved.
Owner:RIZHAO POLYTECHNIC
Self-adaptive neutral point grounding device and method for 3kV-66kV power distribution system
PendingCN113241750AImprove reliabilityHighly Sensitive Protection FeaturesEmergency protective arrangements for limiting excess voltage/currentDistribution power systemControl theory
The invention relates to a self-adaptive neutral point grounding device and method for a 3kV-66kV power distribution system. The invention aims to solve the technical problem that the neutral point grounding mode of the existing power distribution system is difficult to have high reliability and high-sensitivity protection characteristics at the same time. The grounding device comprises a high-speed switch, a first resistor and a second resistor, the first resistor and the second resistor are connected in series, the other end of the first resistor is connected with a system neutral point, the other end of the second resistor is grounded, and the high-speed switch is connected with the first resistor in parallel; the resistance value of the first resistor is greater than that of the second resistor; and the action voltage of the quick switch is greater than the voltage to ground. According to the grounding method, when the system has a grounding fault and the voltage drift of the neutral point exceeds the action voltage of the high-speed switch, the high-speed switch is switched on, so that the neutral point of the system is grounded through the second resistor.
Owner:西安神电高压电器有限公司 +1
Method for preparing iron nitrate oxyhydroxide, cathode containing iron nitrate oxyhydroxide prepared thereby for lithium secondary battery, and lithium secondary battery comprising same
ActiveUS11417880B2High purityImprove responseNegative electrodesPositive electrodesElectrical batteryAnalytical chemistry
Owner:LG ENERGY SOLUTION LTD
Socks having air venting channel
InactiveCN102068042AIncrease air circulationAccelerate evaporationHandkerchiefsBaby linensEngineeringAir conditioning
Owner:X TECH SWISS
Electrolyte and lithium secondary battery comprising same
ActiveUS20210226252A1Growth inhibitionUniform maintenanceNegative electrodesPositive electrodesElectrolytic agentPolyethylene oxide
An electrolyte for a lithium secondary battery and a lithium secondary battery including the same, and more specifically, an electrolyte for a lithium secondary battery that can uniformly maintain a lithium ion concentration on the surface of a lithium metal negative electrode to inhibit the growth of lithium dendrites, even if a small amount of an additive comprising a functional group forming a bond with lithium metal and a polyethylene oxide chain interacting with lithium ion is contained.
Owner:LG ENERGY SOLUTION LTD
Overpressure-assisted gravity bending method device suitable therefor
ActiveCN106795032AImprove efficiencyImprove overvoltageGlass reforming apparatusGlass productionEdge segmentEngineering
The invention relates to a device for bending at least one glass pane (I), at least comprising a gravity bending mold (1), which has a supporting surface (2), which is suitable for arranging at least one glass pane (I) thereon, an upper shaping tool (3) arranged opposite the supporting surface (2), which upper shaping tool is suitable for producing an overpressure on the surface (O) of the at least one glass pane (I) arranged on the supporting surface (2) that faces away from the supporting surface (2), wherein the shaping tool (3) has a cover (8), which forms a cavity (5) open toward the gravity bending mold (1), and is equipped with a sealing lip (7), which is arranged on an edge segment (4) of the cover (8), for contacting the surface (O) of the at least one glass pane (I) that faces away from the supporting surface (2), and wherein the shaping tool (3) is equipped with means for introducing a gas into the cavity (5) in order to produce the overpressure.
Owner:SAINT-GOBAIN GLASS FRANCE
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