Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
37 results about "Geometric stability" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Three-dimensionally reinforced multifunctional nanocomposites
ActiveUS20070128960A1Improve structural reinforcementSimple structureMaterial nanotechnologySynthetic resin layered productsFiberGeometric stability
A three-dimensional composite reinforcement, a three-dimensionally reinforced multifunctional nanocomposite, and methods of manufacture of each are disclosed. The three dimensional reinforcement comprises a two dimensional fiber cloth upon which carbon nanotubes have been grown, approximately perpendicular to the plane of the fiber cloth. The nanocomposite comprises the three-dimensional reinforcement and a surrounding matrix material. Examples illustrate improvements in the through-thickness mechanical, thermal, and electrical properties of the nanocomposite, in addition to substantial improvements in geometrical stability upon temperature changes and vibrational damping, compared to baseline composites reinforced with the two-dimensional fiber cloth alone. Embodiments of the nanocomposite may also be configured to perform multiple functions simultaneously, such as bearing a thermal or mechanical load simultaneously or bearing a mechanical load while also monitoring the state of damage within the nanocomposite.
Owner:RENESSELAER POLYTECHNIC INST +1
Microstructured materials
ActiveUS20160281267A1Maintain dimensional stabilityHigh propertyAdditive manufacturing apparatusOptical articlesFiberGeometric stability
A thermoplastic filament comprising multiple polymers of differing flow temperatures in a regular geometric arrangement, and a method for producing such a filament, are described. Because of the difference in flow temperatures, there exists a temperature range at which one polymer is mechanically stable while the other is flowable. This property is extremely useful for creating thermoplastic monofilament feedstock for three-dimensionally printed parts, wherein the mechanically stable polymer enables geometric stability while the flowable polymer can fill gaps and provide strong bonding and homogenization between deposited material lines and layers. These multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which itself can be three-dimensionally printed. Furthermore, the preform can be printed with precisely controlled and complex geometries, enabling the creation of monofilament and fiber with unique decorative or functional properties.
Owner:US SEC THE ARMY THE
Three-dimensionally reinforced multifunctional nanocomposites
ActiveUS8148276B2Simple structureMaterial nanotechnologySynthetic resin layered productsFiberGeometric stability
A three-dimensional composite reinforcement, a three-dimensionally reinforced multifunctional nanocomposite, and methods of manufacture of each are disclosed. The three dimensional reinforcement comprises a two dimensional fiber cloth upon which carbon nanotubes have been grown, approximately perpendicular to the plane of the fiber cloth. The nanocomposite comprises the three-dimensional reinforcement and a surrounding matrix material. Examples illustrate improvements in the through-thickness mechanical, thermal, and electrical properties of the nanocomposite, in addition to substantial improvements in geometrical stability upon temperature changes and vibrational damping, compared to baseline composites reinforced with the two-dimensional fiber cloth alone. Embodiments of the nanocomposite may also be configured to perform multiple functions simultaneously, such as bearing a thermal or mechanical load simultaneously or bearing a mechanical load while also monitoring the state of damage within the nanocomposite.
Owner:RENESSELAER POLYTECHNIC INST +1
Diffusion beads with core-shell structure
ActiveUS20080299393A1Increase contact areaMaintain electrical neutralityDiffusing elementsSynthetic resin layered productsGeometric stabilityThermal stability
The diffusion beads according to the present invention have a core-shell structure of multi-layered beads consisting of organic and inorganic materials. The diffusion beads are used for improving functions of conventional organic and inorganic polymer diffusion beads. The structure according to the present invention no only enhances light scattering characteristics of the diffusion beads, but also strengthens the thermal stability and geometric stability thereof.
Owner:NAT CHUNG SHAN INST SCI & TECH
Multi-material polymer filament for three-dimensional printing co-drawn with functional or structural thread
ActiveUS20180087189A1Reduce surface roughnessMaintain geometric accuracyAdditive manufacturing apparatusFilament/thread formingMulti materialFiber
A thermoplastic filament comprising multiple polymers of differing flow temperatures in a geometric arrangement and an interior channel containing a structural or functional thread therein is described. A method for producing such a filament is also described. Because of the difference in flow temperatures, there exists a temperature range at which one polymer is mechanically stable while the other is flowable. This property is extremely useful for creating thermoplastic monofilament feedstock for three-dimensionally printed parts, wherein the mechanically stable polymer enables geometric stability while the flowable polymer can fill gaps and provide strong bonding and homogenization between deposited material lines and layers. These multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which itself can be three-dimensionally printed. Furthermore, the preform can be printed with precisely controlled and complex geometries, enabling the creation of a filament or fiber with an interior thread contained within the outer, printed filament or fiber. This thread adds structural reinforcement or functional properties, such as electrical conductivity or optical waveguiding, to the filament.
Owner:UNITED STATES OF AMERICA THE AS REPRESENTED BY THE SEC OF THE ARMY
EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and preparation method thereof
The invention discloses an EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and a preparation method thereof. The EVA foaming and damping material is prepared from the following components in parts by weight: 10-30 parts of EVA, 10-30 parts of NBR (Nitrile-Butadiene Rubber), 30-50 parts of PVC (Polyvinylchlorid), 10-20 parts of epoxidized soybean oil, 10-20 parts of calcium carbonate, 1-3 parts of foaming agent, 0.5-1 part of cross-linking agent, 0.5-1 part of barium stearate, 1-3 parts of zinc oxide, 10-15 parts of plasticizer and 0.5-1 part of accelerator. Compared with the prior art, the EVA foaming and damping material has the characteristics that nitrile-butadiene rubber added in a formula is high in oil resistance, easy in process operation and small in elasticity, so that a product has favorable damping performance. The polyvinylchloride has the advantages of non-flammablility, high strength, favorable weather resistance, excellent geometrical stability and endows excellent ageing resistance for the product. The added epoxidized soybean oil can be used as a lubricating agent for reducing the viscosity of the materials, improving the flowability of the materials and reducing the difficulty coefficient of process operation, is also a widely-used rubber softener and endows excellent softness for the product; and in addition, the epoxidized soybean oil is a PVC environment-friendly plasticizer and stabilizer, and thus the stability of the products is improved.
Owner:晋江市诚长鞋材有限公司
Powder metallurgy bearing material and preparation method thereof
InactiveCN103537668AImprove wear resistanceImprove the lubrication effectMicrocrystalline waxGeometric stability
The invention discloses a powder metallurgy bearing material. The powder metallurgy bearing material is characterized by being composed of, by weight, 5.2-5.5 parts of tungsten, 2.1-2.3 parts of cobalt, 5.7-5.9 parts of nickel, 1.2-1.5 parts of titanium, 0.2-0.5 part of boron, 72-75 parts of ferrum, 3.2-3.5 parts of silicon, 1.2-1.4 parts of graphite, 1.7-1.9 parts of manganese, 5.2-5.6 parts of chromium, 2.3-2.5 parts of zinc stearate, 1.2-1.4 parts of microcrystalline wax, 0.4-0.5 part of tungsten carbide, 0.2-0.4 part of titanium carbide and 1-2 parts of auxiliary agents. The graphite is added to raw materials of the powder metallurgy bearing material, so that abrasion resistance and lubricity of a bearing are enhanced, and the bearing made of the powder metallurgy bearing material is compact in structure and good in microstructure, has very few holes, and has excellent structural rigidity, hardness, fatigue resistance and tensile strength; addition of the nickel enhances toughness and the elasticity modulus of alloy, thereby playing a prominent role in guaranteeing geometric stability of the bearing.
Owner:WUHU HONGKUN AUTO PARTS
Compression bar contact type tensegrity structure and integration and tension exertion method
ActiveCN109969373AReduce weightIncrease stiffnessGeometric CADGirdersHigh stiffnessGeometric stability
The invention discloses a compression bar contact type tensegrity structure and an integration and tension exertion method, and relates to the technical field of engineering structure. The compressionbar contact type tensegrity structure comprises stiffening ring triangular trusses, core shaft triangular trusses and longitudinal pulling rods. The stiffening ring triangular trusses are pressed inan isolation mode; the core shaft triangular trusses bear pressure in a contact mode; and the longitudinal pulling rods are constantly pulled, and a plurality of paralleled outer rings of the stiffening ring triangular trusses in the heat-to-tail sequence and are closed to tails. The compression bar contact type tensegrity structure is a self-balance and self-bearing structure, segmented assemblage is adopted, the compression bar contact type tensegrity structure symmetrically extends, modules are integrated in an assembly mode, the longitudinal pulling rods are enabled to exert uniform tension through the graded and symmetric synchronized push of ends of the core shaft triangular trusses. The compression bar contact type tensegrity structure and the integration and tension exertion methodhave the characteristics of light weight, high stiffness, high geometric stability, and high practicability; the installation integration method is simple, convenient and safe, and has a high expandability; and the tension exertion method is effective, the tension exertion equipment is less, control is easy, the tension is uniform and precise, and the structural joint is simple and neat.
Owner:SHANGHAI JIAO TONG UNIV +1
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
Novel double-layer scissor parabolic cylindrical expandable truss antenna device
ActiveCN108649314AMeet the use requirementsSimple structureCollapsable antennas meansAntenna adaptation in movable bodiesGeometric stabilityControl system
The invention belongs to the technical field of devices combining antenna components with antennas, and discloses a novel double-layer scissor parabolic cylindrical expandable truss antenna device, which is composed of a plurality of double-layer scissor hinge mechanisms, wherein adjacent double-layer scissor hinge mechanisms are connected to each other by a double-headed hinge, a sliding hinge, athree-headed hinge and a four-headed hinge to form a closed parabolic cylinder; each double-layer scissor hinge mechanism consists of two vertical rods, two long inclined rods, two short inclined rods, four double-headed hinges, four sliding hinges, and two springs; and adjacent two double-layer scissor hinges share a vertical rod, a double-headed hinge or a three-headed hinge or a four-headed hinge, a sliding hinge, and a spring. The invention has high geometric stability, strong rigidity, simple movement mechanism and control system, small volume after closing, high storage rate, strong module expansion, as well as simple assembly, and may be respectively deployed in the axial or length direction, thereby satisfying the requirements for the use of aperture antennas.
Owner:XIDIAN UNIV +1
Gob-side entry retaining roadside support system and construction method thereof
ActiveCN106677804AAchieve recyclingGood removal effectUnderground chambersTunnel liningSupporting systemGeometric stability
The invention relates to a gob-side entry retaining roadside support system and a construction method thereof. A rhombic steel bar net is arranged on one side of a gob, an air drum cloth is laid on the inner side of the rhombic steel bar net, light aggregate concrete is adopted to perform guniting treatment on the air drum cloth and the rhombic steel bar net, a windtight light aggregate concrete spray layer is formed on the side of the gob, the thickness of the light aggregate concrete spray layer is 200-500 mm, and the other side of the light aggregate concrete spray layer is close to a steel tube concrete pier stud supporting device. A steel tube concrete pier stud is formed by filling an empty steel tube with concrete; through a restraint effect of a steel tube casing, internal concrete is in a three-dimensional stressed state, the geometrical stability of the steel tube wall is enhanced, and the bearing capacity of the steel tube concrete pier stud is improved. According to the gob-side entry retaining roadside support system, a top plate can be supported in high strength, coal mining efficiency is effectively improved, and an operation environment in a roadway is improved; the steel tube concrete pier stud can be recycled through a special thrust device, and the roadway retained cost is reduced.
Owner:SHANDONG JIANZHU UNIV
Online tracking and dense reconstruction method, system and equipment on mobile equipment
ActiveCN108550181ARegistration is robustImprove robustnessImage analysis3D-image renderingGeometric stabilityMethod selection
The invention relates to a three-dimensional reconstruction method in the field of computer vision, and particularly relates to an on-line tracking and dense reconstruction method, an on-line trackingand dense reconstruction system and on-line tracking and dense reconstruction equipment on mobile equipment. The invention aims to realize the on-line dense three-dimensional reconstruction on the mobile equipment. The three-dimensional reconstruction method comprises the following steps: acquiring a current depth image of a frame, calculating a three-dimensional point and a normal vector of eachpixel point under a camera coordinate system, and calculating a depth noise standard deviation and a gradient graph; selecting a point pair capable of providing enough constraint for an ICP algorithmbased on a geometric stability sampling method, and adopting a visual tracking and IMU information fusion method based on an ICP covariance matrix condition number; after calculating the posture of acamera, fusing a depth map into a TSDF model; carrying out light projection on fused volume data at the calculated posture of the camera so as to obtain a surface point cloud. The method is high in robustness and fast in calculation speed. Meanwhile, based on the method, a finally obtained three-dimensional model is reasonable and reliable.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI
Spring-driven space deployable annular antenna device
ActiveCN107394407AMeet the use requirementsEnhanced geometric stabilityCollapsible/retractable loop antennasExtensibilityRight triangle
The invention discloses a spring-driven space deployable annular antenna device. The spring-driven space deployable annular antenna device comprises n sets of triangular deployable assemblies and an equilateral right triangle deployable unit A; the equilateral right triangle deployable unit A is composed of n sets of triangular deployable cooperative assemblies connected below the n sets of adjacent triangular deployable assemblies; n is greater than or equal to 2; the n sets of triangular deployable assemblies are connected end to end through four-head hinges; the n sets of triangular deployable cooperative assemblies and the n sets of triangular deployable assemblies share the same set of transverse rods connected through the four-head hinges; the n sets of triangular deployable assemblies and the n sets of triangular deployable cooperative assemblies are connected end to end; and, under the action of the elasticity of a spring, folding or unfolding is carried out, so that the deployable annular antenna device is formed. The device has relatively high geometric stability; a motion mechanism and a control system are simple; after being folded, the device is small in volume and high in accepting rate; an active driving device is unnecessary; the module extensibility is high; accessories are simple; and use requirements of large-aperture space antennas, such as communication satellites and space exploration, can be satisfied.
Owner:XIDIAN UNIV
Solid oxide fuel cell having a glass composite seal
ActiveUS20110269053A1Improve propertiesMaintain stabilityFuel cells groupingCell component detailsFiberAlkaline earth metal
A solid oxide fuel cell stack having a plurality of cassettes and a glass composite seal disposed between the sealing surfaces of adjacent cassettes, thereby joining the cassettes and providing a hermetic seal therebetween. The glass composite seal includes an alkaline earth aluminosilicate (AEAS) glass disposed about a viscous glass such that the AEAS glass retains the viscous glass in a predetermined position between the first and second sealing surfaces. The AEAS glass provides geometric stability to the glass composite seal to maintain the proper distance between the adjacent cassettes while the viscous glass provides for a compliant and self-healing seal. The glass composite seal may include fibers, powders, and / or beads of zirconium oxide, aluminum oxide, yttria-stabilized zirconia (YSZ), or mixtures thereof, to enhance the desirable properties of the glass composite seal.
Owner:APTIV TECH LTD
Solid oxide fuel cell having a glass composite seal
ActiveUS8420278B2Improve propertiesMaintain stabilityFuel cells groupingCell component detailsSelf-healingFiber
A solid oxide fuel cell stack having a plurality of cassettes and a glass composite seal disposed between the sealing surfaces of adjacent cassettes, thereby joining the cassettes and providing a hermetic seal therebetween. The glass composite seal includes an alkaline earth aluminosilicate (AEAS) glass disposed about a viscous glass such that the AEAS glass retains the viscous glass in a predetermined position between the first and second sealing surfaces. The AEAS glass provides geometric stability to the glass composite seal to maintain the proper distance between the adjacent cassettes while the viscous glass provides for a compliant and self-healing seal. The glass composite seal may include fibers, powders, and / or beads of zirconium oxide, aluminum oxide, yttria-stabilized zirconia (YSZ), or mixtures thereof, to enhance the desirable properties of the glass composite seal.
Owner:APTIV TECH LTD
Rotomolding-grade polyethylene filled modified composite material and preparation method thereof
InactiveCN109721809AHigh strengthImprove wear resistanceLow-density polyethyleneLinear low-density polyethylene
The invention provides a rotomolding-grade polyethylene filled modified composite material and a preparation method thereof. The rotomolding-grade polyethylene filled modified composite material comprises, by weight, 25 to 90 parts of LLDPE1, 0 to 40 parts of LLDPE2, 10 to 50 parts of an inorganic filling material, 1 to 6 parts of a compatibilizing agent, 0.5 to 10 parts of a toughening agent, 0.1to 1 part of an antioxidant and 0.2 to 0.6 part of a lubricant, wherein the LLDPE1 and the LLDPE2 are two LLDPE materials with different performances; the inorganic filling material contains glass beads; and the compatibilizing agent is PE grafted maleic anhydride. The preparation method comprises the following steps: with linear low-density polyethylene resin as a matrix, filling the linear low-density polyethylene resin with the inorganic filling material, adding POE-g-GMA, POE-g-MAH and the like, and carrying out blending, granulation and grinding so as to prepare a rotomolding material. According to the invention, a rotomolded product prepared from the rotomolding material is improved in strength and has good wear resistance, acid and alkali resistance, geometric stability and antibacterial properties; in addition, the cost of production can be reduced.
Owner:JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
Reinforcement structure for rubber articles and methods of preparation
ActiveUS20120225318A1Simple meansGood adhesionCellulosic plastic layered productsPretreated surfacesPolymer scienceGeometric stability
A reinforcement means for moulded and extruded articles such as tires has a metal structure with a layer of silica gel bonded thereto. The silica gel bonds the reinforcement means to the rubber compound during the moulding / vulcanisation of the rubber compound without the need for a slow curing stage. The silica gel may be applied to the metal structure by a sol-gel process with the gel formed by drying the sol at a temperature up to 150° C. The reinforcement means is preferably a cable formed from steel wires coated with the silica gel. To further improve bonding of the silica gel to the rubber compound, an organosilane bonding agent may be included in the rubber compound or the reinforcing means provided with a second layer comprising an organosilane as a bonding agent. The reinforcement means are particularly useful for strengthening and providing geometric stability to tires.
Owner:NGF EURO +1
EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and preparation method thereof
Owner:晋江市诚长鞋材有限公司
Industrial warp-knitted base fabric and method of producing same
The invention discloses industrial warp-knitted base fabric of high intensity, large size and good stability. The geometric base fabric with good stability and high strength is knitted from false-twisted yarn and fully-drawn yarn which is made of polyolefin or / and polyphenylene sulfide. The Japanese industrial standard (JIS) L1018 8.14.2 constant load elongation rate test proves that the industrial warp-knitted base fabric has the elongation rate of less than 5 percent; the JIS L10188.13 tensile strength and elongation rate test proves that the industrial warp-knitted base fabric has the tensile strength of 400-1200 N; and the industrial warp-knitted base fabric has the gram weight of 40-500 g / m<2>. To achieve the better geometric stability performance of the base fabric, at least two combs are used for knitting the base fabric, wherein the front comb is used for circularly-knitting, and at least one of the rear combs is used for weft-knitting.
Owner:TORAY FIBER RES INST(CHINA) CO LTD
H-shaped steel and concrete composite pile and construction method thereof
InactiveCN106480874AImprove horizontal bearing capacityImprove stabilityBulkheads/pilesGeometric stabilityUltimate tensile strength
The invention provides an H-shaped steel and concrete composite pile and a construction method thereof. The H-shaped steel and concrete composite pile is characterized by comprising an H-shaped steel and two channel steels fixed in openings on two sides of the H-shaped steel and with opposite notches; closed steel plates are arranged in the notches of the two channel steels; and concrete is poured in cavities formed by the notches of the two channel steels and the closed steel plates. The H-shaped steel and concrete composite pile is simple and practical in structural design, fully combines respective advantages of the steels and the concrete materials, reduces self weight through use of the steels, and improves horizontal bearing capacity; meanwhile, as the concrete is filled in the steel pile, on the one hand, the geometric stability of the inner wall of the H-shaped steel can be enhanced to delay or prevent local buckling so as to improve the bearing capacity; and on the other hand, because of restraint of the steels to the concrete, the concrete is located in a three-way stress strain state, the generation and the development of longitudinal micro cracks are delayed, and the compressive strength and the compressive deformation capacity are improved.
Owner:FUZHOU UNIV
Underground cavern excavation support system and construction method
InactiveCN109519201AGood for geometric stabilityLifting excavationMining devicesUnderground chambersSupporting systemElectricity
An underground cavern excavation support system includes a top arch excavation area, an end wall excavation area and an inverted arch excavation area which are sequentially connected from top to bottom. The top arch excavation area is provided with a finalized operation platform, and anchor rods are arranged outside the top arch excavation area and the end wall excavation area. The top arch excavation area is also provided with a drainage body. Two symmetrically arranged water and electricity prefabricated boxes are arranged in the inverted arch excavation area. Each water and electricity prefabricated box is provided with a hydroelectric isolation panel dividing the water and electricity prefabricated box into an upper part and a lower part, wherein the upper part of the water and electricity prefabricated box is provided with an electric line pipe gallery, and the lower part of the water and electricity prefabricated box is provided with an underground drainage pipe gallery. Comparedwith the prior art, excavation area blocks on two sides form an obtuse angle, which is beneficial to the geometric stability during the whole excavation process. Support conducted after complete excavation of the whole block is not required, the periphery is excavated and supported first, and then the middle area is excavated. The excavation and support construction efficiency is improved.
Owner:HANGZHOU JIANGRUN TECH LIMITED
A roadside support system for gob-side entry retention and its construction method
ActiveCN106677804BHigh compressive strengthEnhanced geometric stabilityUnderground chambersTunnel liningSupporting systemGeometric stability
Owner:SHANDONG JIANZHU UNIV
Diffusion beads with core-shell structure
ActiveUS7563508B2Low costReduce total usageDiffusing elementsSynthetic resin layered productsGeometric stabilityThermal stability
The diffusion beads according to the present invention have a core-shell structure of multi-layered beads consisting of organic and inorganic materials. The diffusion beads are used for improving functions of conventional organic and inorganic polymer diffusion beads. The structure according to the present invention no only enhances light scattering characteristics of the diffusion beads, but also strengthens the thermal stability and geometric stability thereof.
Owner:NAT CHUNG SHAN INST SCI & TECH
Reinforcement structure for rubber articles and methods of preparation
ActiveCN102481807ACombined strengthAlkali metal silicate coatingsSpecial tyresPolymer scienceGeometric stability
Owner:NGF EURO +1
Zinc electrode for use in rechargeable batteries
ActiveUS9831499B2Electrode rolling/calenderingAlkaline accumulatorsBattery chargeGeometric stability
The present invention relates to zinc electrode and to methods of producing zinc electrode and particularly to a method of producing zinc electrode providing dimensional / geometrical stability during a battery charge / discharge operation. The invention provides methods of use of batteries comprising the zinc electrode of this invention. Applications of batteries of this invention include electric vehicles, portable electronics and drones.
Owner:PHINERGY
Modified polyformaldehyde material
The invention is intended to provide a modified polyformaldehyde material to improve contractibility of polyformaldehyde material and a preparation method thereof. Polyformaldehyde is a high-density high-crystallinity linear polymer with no side chains which has good integrated performance, as well as excellent wear resistance and self-lubricating property, good oil resistance and good peroxide resistance. Polyformaldehyde is a tough elastic material which has good creep resistance, good geometric stability and good impact resistance even at low temperature. However, polyformaldehyde is a crystallizable material and rarely absorbs moisture. High crystallization degree of polyformaldehyde leads to a high shrinkage, up to 2-3.5%, which is different to different reinforcing materials. Therefore, shrinkage of polyformaldehyde is improved through glass fiber reinforcement. Shrinkage stability of the polyformaldehyde material can be evidently improved.
Owner:QINGDAO YISHIBAO PLASTIC
A spring-driven spatially expandable loop antenna device
ActiveCN107394407BMeet the use requirementsEnhanced geometric stabilityCollapsible/retractable loop antennasExtensibilityRight triangle
The invention discloses a spring-driven space deployable annular antenna device. The spring-driven space deployable annular antenna device comprises n sets of triangular deployable assemblies and an equilateral right triangle deployable unit A; the equilateral right triangle deployable unit A is composed of n sets of triangular deployable cooperative assemblies connected below the n sets of adjacent triangular deployable assemblies; n is greater than or equal to 2; the n sets of triangular deployable assemblies are connected end to end through four-head hinges; the n sets of triangular deployable cooperative assemblies and the n sets of triangular deployable assemblies share the same set of transverse rods connected through the four-head hinges; the n sets of triangular deployable assemblies and the n sets of triangular deployable cooperative assemblies are connected end to end; and, under the action of the elasticity of a spring, folding or unfolding is carried out, so that the deployable annular antenna device is formed. The device has relatively high geometric stability; a motion mechanism and a control system are simple; after being folded, the device is small in volume and high in accepting rate; an active driving device is unnecessary; the module extensibility is high; accessories are simple; and use requirements of large-aperture space antennas, such as communication satellites and space exploration, can be satisfied.
Owner:XIDIAN UNIV
Composite pile using h-shaped steel and concrete and its construction method
InactiveCN106480874BImprove horizontal bearing capacityImprove stabilityBulkheads/pilesGeometric stabilityUltimate tensile strength
The invention provides an H-shaped steel and concrete composite pile and a construction method thereof. The H-shaped steel and concrete composite pile is characterized by comprising an H-shaped steel and two channel steels fixed in openings on two sides of the H-shaped steel and with opposite notches; closed steel plates are arranged in the notches of the two channel steels; and concrete is poured in cavities formed by the notches of the two channel steels and the closed steel plates. The H-shaped steel and concrete composite pile is simple and practical in structural design, fully combines respective advantages of the steels and the concrete materials, reduces self weight through use of the steels, and improves horizontal bearing capacity; meanwhile, as the concrete is filled in the steel pile, on the one hand, the geometric stability of the inner wall of the H-shaped steel can be enhanced to delay or prevent local buckling so as to improve the bearing capacity; and on the other hand, because of restraint of the steels to the concrete, the concrete is located in a three-way stress strain state, the generation and the development of longitudinal micro cracks are delayed, and the compressive strength and the compressive deformation capacity are improved.
Owner:FUZHOU UNIV
Coaxial optical dual-camera splicing structure
ActiveCN108286639ALight weight structureSave satellite resourcesStands/trestlesCamera body detailsOptical axisGeometric stability
The invention discloses a coaxial optical dual-camera splicing structure. According to the scheme, a screw mechanical connection is adopted to enable main support structures of two high-resolution cameras to be fixedly connected together, so that an included angle between optical axes of the two cameras is ensured and splicing of the two cameras is achieved. Through support structures, a dual-camera combination is fixed to a satellite platform, and the problem of thermo-mechanical coupling between the cameras and the satellite platform is solved; and the internal connecting part of the two cameras is provided with a reset pin, and the relative positional relationship between the cameras is ensured at the initial stage of structure assembly by preparing pins. Compared with the prior art, the coaxial optical dual-camera splicing structure is light in weight, good in rigidity and convenient to assembly, the precision and stability of the included angle between the two cameras are high, the stability of an on-orbit geometry is good, large and wide functions are realized at a small cost, and great significance is achieved in realizing the high resolution and wide coverage of space remote sensing cameras.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Multi-faceted cascadable servos with center-out axis for position feedback
ActiveCN105128028BImprove working precisionReduce empty spaceProgramme-controlled manipulatorJointsGeometric stabilityControl theory
The invention discloses a multi-faceted cascadable steering gear with a center output shaft with position feedback, comprising a steering gear main body and a motor, the steering gear main body includes a top shell, a gear shell and a lower shell, and the lower shell is provided with a bottom shell The connection port, the motor is set and fixed in the gear housing, the center of the gear housing is provided with an output shaft, the output shaft is provided with a reduction gear set, and the gear housing is also provided with a rotation sensor interlocking with the reduction gear set, the top of the output shaft is connected to There is an output shaft connector, and the center of the output shaft connector and the connection port of the bottom shell is provided with a connection groove of the same size. It can be cascaded with the side of the next steering gear through an angle connector, with simple structure and good geometric stability.
Owner:SHENZHEN DEXTA ROBOTICS CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com