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50results about How to "Reduce empty space" patented technology
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Stent having an expandable web structure
InactiveUS20070135891A1Minimizing non-uniformityImprove abilitiesStentsSurgeryWeb structureInsertion stent
A stent comprises a tubular flexible body composed of a web structure that is expandable from a contracted delivery configuration to a deployed configuration and that comprises neighboring web patterns of alternating concavities extending circumferentially and adjoined by X-shaped transition sections. The web pattern may comprise either arcuate struts interconnected by bends, or a plurality of substantially straight sections with the transition sections formed by the junctions between pairs of adjacent bends of opposite curvatures.
Owner:ABBOTT INT ENTERPRISES LTD
Process of and a device for producing a gas, containing at least one component, from a gas mixture
InactiveUS6068679AAvoid developmentImprove stabilityGas treatmentIsotope separationEngineeringGas blending
PCT No. PCT / SE97 / 00332 Sec. 371 Date Dec. 10, 1998 Sec. 102(e) Date Dec. 10, 1998 PCT Filed Feb. 26, 1997 PCT Pub. No. WO97 / 32658 PCT Pub. Date Sep. 12, 1997A process and apparatus for separating a gas from a gas mixture. The apparatus includes a vessel having an interior with a bed of adsorbent disposed therein. First and second passages communicate with the interior of the vessel. In a first step, the gas mixture is fed to the bed via the first passage and discharged from the bed via the second passage. In a second step, rest gas is evacuated from the bed via the first passage. In a third step, the gas mixture is fed to the bed via the second passage and discharged from the bed via the first passage. In a fourth step, rest gas is evacuated from the bed via the second passage.
Owner:AGA AB
Shaft for anchoring a hip joint prosthesis in the femur
InactiveUS7004973B2Improve fitReduce empty spaceJoint implantsFemoral headsSpherical jointBody of femur
A profiled shaft for anchoring a hip-joint prosthesis in the femur is disclosed, with a shaft section and a fixation section that is formed at the end of the shaft section and that serves for the fixation of a spherical joint head, wherein the shaft section on the lateral surface in the proximal region merges with a trochanter wing at the edges of which beveled surfaces are formed. The essential point of the invention is that the angle formed between the plane of a beveled surface the plane of the adjacent surface is smaller than 135° and larger than 90°. In a construction of this kind the advantage of an improved filling of the empty space in the trochanter-wing region is achieved.
Owner:PLUS ORTHOPEDICS
Element layout apparatus, element layout program and element layout method
InactiveUS7231144B2Shorten the timeReduce expressionTelevision system detailsColor television detailsVideocassette recorderEngineering
Owner:SEIKO EPSON CORP
Element layout apparatus, element layout program and element layout method
InactiveUS20050081147A1Shorten the timeReduce expressionTelevision system detailsColor television detailsVideocassette recorderEngineering
Exemplary embodiments of the invention provide an element layout apparatus, an element layout program and an element layout method which lay out a plurality of images taken by a camera, a video recorder or the like, so as to express a sense of time or ambience with the lapse of time on an album board.
Owner:SEIKO EPSON CORP
Method Of Shipping and Displaying Products For Sale To Consumers And Associated Product Display
InactiveUS20100320109A1Reduce empty spaceIncrease widthShow cabinetsOther accessoriesDiagonalDisplay device
A pallet display with a plurality of product display sides, and preferably more than one product display side along a merchandising side of a display pallet or display pallet footprint. Products thus can be displayed adjacent one another but not aligned, thereby increasing the number of planogrammable areas. The pallet display may be modular so that the sections can be disassembled and fitted on half a shipping pallet, allowing two pallet displays to ship on a single shipping pallet. Portions of the display may also be disassembled and used as a separate and preferably different type of product display, such as a power wing or side wing. The display may be symmetrical about a diagonal of a display pallet, such that only one essentially triangular pallet display may be formed to fit within a triangular footprint.
Owner:JOHNSON & JOHNSON CONSUMER COPANIES
Multi-face cascadable steering engine with position feedback center output shaft
ActiveCN105128028AImprove working precisionReduce empty spaceProgramme-controlled manipulatorJointsGeometric stabilityEngineering
The invention discloses a multi-face cascadable steering engine with a position feedback center output shaft. The multi-face cascadable steering engine comprises a steering engine body and a motor. The steering engine body comprises a top shell, a gear shell and a lower shell. The lower shell is provided with a bottom outer shell connector. The motor is fixedly arranged in the gear shell. The output shaft is arranged at the central position of the gear shell, and is further provided with a reduction gear set. A rotation sensor which is in engaged linkage with the reduction gear set is further arranged in the gear shell. The top of the output shaft is connected with an output shaft connector, and connecting grooves of the same size are formed in the central position of the output shaft connector and the central position of the bottom outer shell connector. The output shaft connector can be in cascade connection with a bottom outer shell connector of the next steering engine through a quick-dismounting connecting piece, and meanwhile can be in cascade connection with the side face of the next steering engine through an angle connector. The structure is simple and geometric stability is good.
Owner:SHENZHEN DEXTA ROBOTICS CO LTD
Stent having an expandable web structure
Owner:ABBOTT INT ENTERPRISES LTD
Long-handled probe interventional ultrasonic puncture depth control device
PendingCN107280736ADepth fine-tuningConveniently limit the locationSurgical needlesTrocarSurgical operationRadiology
The invention provides a long-handled probe interventional ultrasonic puncture depth control device, and relates to the field of interventional ultrasonic instruments in medical instruments. The long-handled probe interventional ultrasonic puncture depth control device comprises a puncture needle guide device and a depth control device, the puncture needle guide device is provided with a puncture guide cylinder for guiding a puncture needle, a probe fixing wing connected with a long-handled ultrasonic probe is arranged below the puncture guide cylinder, a clamping device for fixing the position of the puncture needle is arranged on the depth control device, and a connecting device for connecting the depth control device with the puncture needle guide device is further arranged on the depth control device. By the aid of the puncture needle guide device and the depth control device, the position of the puncture needle in the puncture guide cylinder can be conveniently limited, the puncture needle is locked in the surgical operation process according to treatment requirements, and hands of a doctor are released to perform other diagnosis and treatment operation. The depth control device can be conveniently mounted and detached in the surgical process, and ultrasonic detection and puncture operation cannot be affected.
Owner:YICHANG CENT PEOPLES HOSPITAL
Unmanned aerial vehicle control plane drive mechanism
InactiveCN107697272AReduce empty spaceReduce loadAircraft controlWith power amplificationRocker armVehicle control
The invention discloses an unmanned aerial vehicle control plane drive mechanism. Drive of an elevator with a horizontal tail is taken as an example. The drive mechanism comprises the elevator, a Y-shaped chuck, an elevator rotary shaft, a rocker arm, an elevating steering engine, a horizontal stabilizer, a control plane clip, a horizontal tail steering engine seat and a vertical fin. The Y-shapedchuck is arranged on one side of the elevator and provided with the elevator rotary shaft. The rocker arm is arranged on the elevating steering engine and provided with the control plane clip. The mode that a control plane is directly driven through the rocker arm and the control plane clip is adopted by the steering engine, and the clearance of the control plane in the drive process is reduced;the steering engine is buried in a wing or a flat vertical tail stabilizer, the mechanism cannot be exposed, the appearance of the wing or the flat vertical tail is simpler, and the flight resistanceis smaller; the drive mode is simple and direct, various types of resistance in the transmission process is reduced, the steering engine load is reduced, and meanwhile the reliability of the mechanismis improved; and the control plane of the mechanism is convenient to detach, install and replace.
Owner:西安冰果智能航空科技有限公司
Chip antenna mounting apparatus
Owner:CHANT SINCERE CO LTD
Calcium organic fertilizer specially for preventing and treating peanut blight and preparation method of calcium organic fertilizer
ActiveCN102086139ANo side effectsPlay a role in promotingBio-organic fraction processingOrganic fertiliser preparationEffective microorganismCasuarina equisetifolia
The invention provides a calcium organic fertilizer specially for preventing and treating peanut blight and a preparation method of the calcium organic fertilizer. In the invention, an aerobic high-temperature composting mode is adopted, the raw material formula of the calcium organic fertilizer is as follows: the calcium organic fertilizer comprises the following components by weight percentage:35-45% of pig manure, 8-12% of casuarina, 8-12% of peanut shell, 10-14% of shell powder, 3-6% of calcium superphosphate, 20-30% of water and 0.2-0.5% of effective microorganism (EM) agent. The pig manure is processed by a dry-wet separation technique. By applying regulation and control technologies such as moisture, temperature, pH value, C / N (carbon / nitrogen), C / P (carbon / phosphorus) and the like, based on sprouting index and C / N as maturity evaluation standards, the produced calcium organic fertilizer can meet the national standard of commercial organic fertilizer. In a sand ground peanut blight area along a shore, a special calcium peanut organic fertilizer is used, thereby effectively reducing the peanut blight rate and improving the economic benefits of peanuts.
Owner:BLESSING OF GUIZHOU ECOLOGICAL FERTILIZER CO LTD
Dust-suppression and rock-discharge system utilizing tailing slurry and dust-suppression and rock-discharge method
The invention relates to a dust-suppression and rock-discharge system utilizing tailing slurry and a dust-suppression and rock-discharge method. The system comprises a classification tailing sand preparation station and a batching rock-discharge system, wherein the tailing slurry is utilized to dedust a rock-discharge field when the two systems are used for open-cast mining and rock discharge; coal ash is added to the tailing slurry to fabricate mixed slurry at an earlier stage for the purpose of reducing abrasion of the tailing slurry to a pipeline; red mud is added to the mixed slurry at a later stage to fabricate gelling mixed slurry for the purpose that the red slurry can gel mixtures discharged by a dumping machine in the drying process; raised dust due to air drying is avoided; and gaps among rocks are decreased. With the adoption of the system and the method, water resources are saved; the gaps among the rocks discharged are decreased; potential safety hazards existing in a dumping field are eliminated; requirements of land reclamation are met; ecological restoration of a mine is facilitated; tailings are taken full advantage of and not discharged to a tailing pond; and investment and land resources are saved.
Owner:ANSTEEL GRP MINING CO LTD
Continuous cutting process suitable for small workpieces
ActiveCN102873429AReduce empty spaceReduce the number of perforationsGas flame welding apparatusEngineeringEnergy consumption
The invention relates to the field of metal machining, in particular to a continuous cutting process suitable for small workpieces, which solves the problems of great idle strokes of a moving path, waste of fuel and high loss in the conventional cutting method. The continuous cutting process suitable for the small workpieces comprises the following steps: punching from the starting point of a first cutting unit, vertically cutting a left side downwards along the line of the point, horizontally cutting a bottom side along the line and cutting a right side upwards along the line so as to continuously cut the three sides of a rectangle; horizontally cutting from the highest point to the starting cutting point of another rectangular unit; continuously cutting the three sides at the next turn; horizontally cutting the upper side in a transverse long distance; and returning to the starting point of the first cutting point to cut the whole top side, wherein the transverse long distance cutting side is not higher than the left side and the right side. The process has few idle strokes and few perforations, energy consumption is reduced and the workpieces are high in quality.
Owner:晋能控股装备制造集团金鼎山西煤机有限责任公司
Quick disassembly propeller and unmanned aerial vehicle adopting same
ActiveCN106672210AImprove disassembly efficiencyEasy to transportPropellersWeight reductionPropeller
The invention relates to the technical field of unmanned aerial vehicles, in particular to a quick disassembly propeller and an unmanned aerial vehicle adopting the same. The quick disassembly propeller comprises: a propeller holder, a propeller and a pressing block, wherein the propeller is arranged on the propeller holder, and is fixed in a circumferential direction of the propeller holder; the pressing block is engaged with the propeller holder, and meanwhile, the propeller is clamped between the pressing block and the propeller holder. Moreover, the invention also provides the unmanned aerial vehicle adopting the quick disassembly propeller. In the invention, by circumferentially positioning the propeller through the propeller holder, axially positioning the pressing block and engaging the pressing block with the propeller holder, the assembly and disassembly efficiency of the propeller can be greatly improved, and transportation of the unmanned aerial vehicle is facilitated; the propeller is limited by means of a pressing force, so a clearance between the propeller and the propeller holder is limited and reduced, the flight performance of the unmanned aerial vehicle is not influenced, and the unmanned aerial vehicle has higher safety.
Owner:SHANGHAI XPARTNER ROBOTICS +1
Traffic signal control method based on traffic flow conflict point occupancy rate at center of intersection
ActiveCN109841068AReduce traffic delaysIncrease profitControlling traffic signalsOccupancy rateTraffic delay
The invention discloses a traffic signal control method based on a traffic flow conflict point occupancy rate at the center of an intersection. The method comprises steps: 1, the occupancy value of atraffic flow conflict point is acquired; 2, the effective green light use time of each traffic flow is calculated; 3, the green light time allocated for each flow under the current signal control scheme is calculated; 4, the invalid green light time of each phase is calculated; 5, the green light time use rate of each phase is optimized according to a control target; and 6, a new signal control scheme is formed. The traffic signal control method based on the traffic flow conflict point occupancy rate at the center of the intersection has the beneficial effects that the green light use condition of each flow can be analyzed and calculated according to the occupancy rate condition of the traffic flow conflict point at the center of the intersection, on the basis, the green light time of eachphase in a signal control scheme is optimized, the use rate of the phase green light time is improved, empty release is reduced, and the traffic delays at the intersection are reduced.
Owner:GUANGDONG ZHENYE UCTRL TECH CORP LTD
Wound Dressings and Systems with Low-Flow Therapeutic Gas Sources for Topical Wound Therapy and Related Methods
PendingUS20210236342A1Reduce deliveryImprove efficacyMedical devicesAdhesive dressingsHigh concentrationWound dressing
This disclosure includes wound dressings and systems with low-flow, high-concentration therapeutic gas sources for topical wound therapy and related methods. Some dressings, which are configured to be coupled to tissue to facilitate delivery of therapeutic gas to the tissue, comprise a manifold that defines a plurality of gas passageways, the manifold configured to allow communication of therapeutic gas to the tissue; a sorbent material configured to be disposed above or below the manifold and to capture exudate; and a gas-occlusive layer configured to be disposed over the manifold and the sorbent material and coupled to the tissue such that an interior volume containing the manifold and the sorbent material is defined between the gas-occlusive layer and the tissue and the gas-occlusive layer limits escape of therapeutic gas from the interior volume.
Owner:KCI LICENSING INC
Motor bearing mounting method and motor
InactiveCN106712413AImprove performanceReduce empty spaceManufacturing dynamo-electric machinesSupports/enclosures/casingsFixed bearingEngineering
Owner:胡永健
Two-dimensional electric tilt antenna transmission mechanism
The invention provides a two-dimensional electric tilt antenna transmission mechanism, comprising a support and a reflecting plate capable of rotating relative to the support, and further comprising a driving device, a transmission assembly fixed on the reflecting plate, and an arc-shaped driven rack fixed on the support, wherein the transmission assembly comprises a driving gear driven by the driving device; the arc-shaped driven rack is engaged with the driving gear; the driving gear only has the degree of axial freedom and circumferentially moves around the arc-shaped driven rack; and the arc-shaped driven rack is coaxial with the rotating center of the reflecting plate, so the reflecting plate can rotate around the rotating center. The transmission mechanism is simple in structure and convenient, and can effectively improve the precision of horizontal power transfer of an antenna, improve the overall structural strength of the antenna and reduce the production cost.
Owner:TONGYU COMM INC
Simplified cultivation method of high-temperature-resistant rice
InactiveCN110278843AImprove qualityEmission reductionPlant genotype modificationSeed immunisationTemperature stressTemperature resistance
The invention discloses a simplified cultivation method of high-temperature-resistant rice. The method is characterized by comprising the following steps of high-temperature-resistant variety selection, seed preprocessing, base selection, sowing period adjustment, strong seedling cultivating and transplanting, straw application, balancing of fertilization and pest prevention. According to the simplified cultivation method of high-temperature-resistant rice, simplified cultivation technical measures of reducing high-temperature damage, increasing the yield, improving the rice quality and reducing greenhouse gas emission are disclosed, and the method has excellent yield benefits, quality benefits and environmental benefits. A rice variety with strong high-temperature resistance is selected, and young ear development and heading periods avoid the hot time period of high-temperature droughts so that the loss caused by high-temperature heat damage to rice can be reduced; by reasonably adjusting the sowing period, the high temperature stress in the flowering phase of the rice is avoided, and adverse effects caused by high-temperature weather are reduced.
Owner:RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
Characterization method and device for unbalance degree of each turning direction of intersection, electronic equipment and storage medium
ActiveCN112598902AOptimized designImprove traffic conditionsDetection of traffic movementRoad traffic safetyTraffic analysis
The invention discloses a characterization method and device for unbalance degree of each turning direction of an intersection, electronic equipment and a storage medium, and belongs to the technicalfield of traffic. According to the method, indexes influencing intersection imbalance indexes are analyzed in detail, and each turning entrance lane imbalance index and each opposite entrance lane imbalance index in an intersection are determined; and a calculation formula is improved to reflect the overall unbalance state of the intersection, whether signal timing and / or phase setting of the intersection is adjusted or not is judged according to the unbalance index, the intersection can be guided to conduct signal timing optimization design, adjust the phase and the phase sequence, so the traffic operation condition of the whole intersection is improved, the traffic safety of the intersection is improved, the vehicle running efficiency is improved, and the traffic safety is guaranteed. The problems that in existing intersection traffic analysis, definition of imbalance indexes is fuzzy, division is not comprehensive enough, the imbalance degree of an intersection is difficult to accurately measure, and intersection problem analysis is difficult to go deep are solved or partially solved.
Owner:安徽百诚慧通科技股份有限公司
Chip Antenna Mounting Apparatus
InactiveUS20070194996A1Firm supportReduce empty spaceSimultaneous aerial operationsAntenna supports/mountingsEngineeringElectronic component
A connection apparatus for a chip antenna includes a connection base and at least one chip slot. The connection base is disposed on a circuit board and connects to the electronic components of the circuit board via a connection wire. The chip slot is disposed on the connection base for inserting the chip antenna. Thus, the chip antenna is connected to the electronic components of the circuit board via the connection wire.
Owner:CHANT SINCERE
Door lock back locking safety knob mechanism
PendingCN114086832APrecise positioningReduce empty spaceBuilding locksStructural engineeringSteel ball
The invention relates to a door lock back locking safety knob mechanism which comprises a knob, a limiting gasket, a lock panel and a tubular fixing piece, a through hole is formed in the lock panel, and the fixing piece is arranged at one end of the lock panel and connected with the lock panel; the knob is arranged at the other end of the lock panel, and a rotating shaft part of the knob penetrates through the through hole and the fixing piece and is connected with the fixing piece; the base body of the knob extends into the through hole and is tightly attached to the fixing piece. A limiting groove is formed in the end face, close to the fixing piece, of the base body of the knob and surrounds the rotating shaft part of the knob. The limiting gasket sleeves the rotating shaft part of the knob and is positioned in the limiting groove; a positioning hole is formed in the limiting gasket; blind holes are formed in the inner walls of the fixing pieces, springs and steel balls are arranged in the blind holes, and the steel balls are arranged at the ends, close to the through hole, of the springs. The spring pushes the steel ball to be tightly attached to the limiting gasket, and one end of the steel ball sinks into the positioning hole. Compared with the prior art, the accurate positioning of knob rotation is achieved, and hand feeling feedback is achieved; vacancy is reduced, and shaking is not prone to being generated.
Owner:深圳市兆驰数码科技股份有限公司
Intersection unbalance degree analysis method and device, electronic equipment and storage medium
ActiveCN112598901AThe calculation formula is simpleOptimizing Signal Timing DesignDetection of traffic movementSimulationControl theory
The invention discloses an intersection unbalance degree analysis method and device, electronic equipment and a storage medium, and belongs to the technical field of traffic. The method comprises thefollowing steps: analyzing indexes influencing intersection imbalance indexes in detail, and determining each turning entrance lane imbalance index and each opposite entrance lane imbalance index in an intersection; and determining the weight between different imbalance indexes, improving the calculation formula of the intersection imbalance index to reflect the overall imbalance state of the intersection, judging whether to adjust the signal timing and / or phase setting of the intersection according to the relationship between the imbalance index and a preset threshold, and determining whetherto adjust the signal timing and / or phase setting of the intersection according to the relationship between the imbalance index. The method and the device are helpful for guiding the intersection to carry out signal timing optimization design, adjusting the phase and phase sequence, improving the traffic operation condition of the whole intersection, improving the vehicle operation efficiency, andguaranteeing the traffic safety.
Owner:安徽百诚慧通科技股份有限公司
Special compound microbial fertilizer for alfalfa in saline-alkali soil and preparation method thereof
PendingCN113582762AImprove soil physical and chemical propertiesEnhanced ion adsorption capacitySuperphosphatesCalcareous fertilisersRhizobiumAlkali soil
The invention discloses a special compound microbial fertilizer for alfalfa in saline-alkali soil and a preparation method thereof. The special compound microbial fertilizer is prepared from the following raw materials in parts by mass: a saline-alkali-tolerant phosphate-dissolving and potassium-dissolving rhizobium compound microbial agent, crop straws and waste branches, furfural residues, desulfurized gypsum, calcium superphosphate and fulvic acid. The preparation method comprises the following steps: crushing and drying the crop straws, waste branches and furfural residues, adding a fermentation and decomposition microbial inoculum, adjusting the moisture to be about 60%, adding desulfurized gypsum, and after aerobic solid-state fermentation is completed, adding fulvic acid, calcium superphosphate and the compound microbial agent to obtain the special compound microbial fertilizer for alfalfa in saline-alkali soil. The compound bacterial fertilizer improves the ecological environment of the saline-alkali soil, increases the yield of alfalfa, and realizes reasonable utilization of agricultural waste resources.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT NINGXIA ACAD OF AGRI & FORESTRY SCI NINGXIA KEY LAB OF SOIL & PLANT NUTRITION +1
Flat panel display device and method of fabricating the same
ActiveUS8711308B2Reduce empty spaceAvoid damageDischarge tube luminescnet screensPrinted electric component incorporationEngineeringFlat panel display
Owner:SAMSUNG DISPLAY CO LTD
Traffic signal on-line control method of road intersection
PendingCN113763727AReduce empty spaceImprove traffic efficiencyControlling traffic signalsDetection of traffic movementReal-time dataTraffic signal
The invention relates to the field of traffic signal control, and particularly discloses a traffic signal on-line control method of a road intersection. The method comprises the steps of acquiring key characteristic parameters of the road intersection, multivariate traffic flow real-time data, initial maximum green light time, initial minimum green light time and initial reference green light time of the key characteristic parameters; performing online response iterative learning according to the multivariate traffic flow real-time data and the initial reference green light time to obtain optimal real-time reference green light time; and comparing the release time of the current phase with the initial maximum green light time, the initial minimum green light time and the optimal real-time reference green light time, and determining a phase switching logic in combination with a red light queuing length threshold. According to the traffic signal on-line control method of the road intersection, traffic signal control of the road intersection can adapt to traffic changes, so that the passing efficiency is improved, and green light idle emission is reduced.
Owner:TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
Stent having an expandable web structure
InactiveUS20110125243A1Reduced foreshorteningReduce unevennessStentsEar treatmentReticular formationWeb structure
Owner:ABBOTT INT ENTERPRISES LTD
Connecting rod structure, robot finger and robot
ActiveCN113059581AAchieve active bendingAchieve straighteningGripping headsArmsEngineeringControl theory
The invention belongs to the technical field of robot accessories, and particularly relates to a connecting rod structure, a robot finger and a robot. In the connecting rod structure, a fixing frame, a first rod piece, a second rod piece and a connecting rod form a four-rod mechanism, and in combination with a driving assembly and an elastic piece, the active bending, straightening and passive bending motion of the four-rod mechanism can be achieved. No matter whether a linear driving piece works or not, when the second rod piece is subjected to external force, the second rod piece can swing, the elastic piece is compressed to store energy, the first rod piece is in linkage with the connecting rod, the first rod piece swings in the swinging direction of the second rod piece, and the passive bending motion is achieved. During the passive bending motion, interference between the first rod piece and a transmission rod cannot occur, and the situation that the four-rod mechanism is damaged due to the external force is reduced. After the external force is removed, the elastic piece releases energy to drive the second rod piece to reset, the first rod piece is in linkage with the connecting rod, and the straightening motion is achieved. The connecting rod structure can be applied to occasions needing two-way active motion and one-way passive motion, such as the robot finger.
Owner:UBTECH ROBOTICS CORP LTD
Threaded joint for tubes
ActiveUS20040183297A1Avoid the needImprove joint performanceSleeve/socket jointsPipe supportsTagged Image File FormatEngineering
Described herein is a threaded joint, in which the threads are coated with a layer of dry lubricant having a thickness of between 5 mum and 30 mum and in which the nominal void volume NVV of the space (6, 7) between the thread of the male tube and the thread of the female tube, is sized by means of the following formulae: <math-cwu id="MATH-US-00001"> <NUMBER>1< / NUMBER> NVV [ cm 3 ] ≤ 4 x OD [ inch ] NVV [ cm 3 ] OD [ inch ] x Wt [ mm ] ≤ 1 g T ≤ 0.4 mm 2 / pitch <mathematica-file id="MATHEMATICA-00001" file="US20040183297A1-20040923-M00001.NB" / > <image id="EMI-M00001" wi="216.027" he="47.99655" file="US20040183297A1-20040923-M00001.TIF" imf="TIFF" ti="MF" / > < / MATH-CWU> where OD is the nominal outer diameter and Wt is the thickness of the wall of the pipes.
Owner:TENARIS CONNECTIONS
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