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176 results about "Elliptic cylinder" patented technology
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An elliptic cylinder is a cylinder with an elliptical cross section. The elliptic cylinder is a quadratic ruled surface.
Light guide place and light-diffusing structure thereof
InactiveUS20090015753A1Increase the areaGood light diffusion effectMechanical apparatusPlanar/plate-like light guidesEllipseLight guide
A light guide plate that is divided into an effective section capable of providing uniform surface illumination and a transitional section between the effective section and the point light source includes a light-receiving surface, a light-emitting surface, a light-reflecting surface, and a plurality of light-diffusing structures. The light-diffusing structures are spread on the transitional section, and each light-diffusing structure is in the shape of a part elliptic cylinder having a long axis and a short axis and the front surface of the light-diffusing structure facing the point light source is a part elliptic cylindrical surface.
Owner:WINTEK CORP
Traditional Chinese medicine pillow with active carbon
The invention discloses a traditional Chinese medicine pillow with active carbon. The traditional Chinese medicine pillow with the active carbon comprises a medicine pillow cover as well as a packaging layer, an active carbon layer and a traditional Chinese medicine layer which are arranged in the medicine pillow cover, wherein the active carbon layer consists of a double-layer breathable layer and active carbon particles filled in the double-layer breathable layer; the traditional Chinese medicine layer consists of a single-layer breathable layer and traditional Chinese medicine ingredients packaged in the single-layer breathable layer; the active carbon layer is of a cylindrical or elliptic cylinder hollow structure; the traditional Chinese medicine layer is arranged in the hollow structure; and the packaging layer is filled with a flexible and breathable material and packages the active carbon layer. According to the traditional Chinese medicine pillow with active carbon, the strong sorption capacity, a sterilization function, an oxidation resistance function, a negative ion release function and other functions of the active carbon and the health preserving function, health protection function, disease preventing and treating function of traditional Chinese medicines are combined into a whole, thereby providing a safe, comfortable and healthy medicine pillow for people.
Owner:淮北市恒信环保材料有限责任公司
Diffusing Sheet, Surface Light Source Device, and Transmission Type Display
ActiveUS20080068716A1Uniform lightImprove diffusion abilityDiffusing elementsOptical light guidesDisplay deviceElliptic cylinder
The present invention provides a diffusing sheet, a surface light source device, and a transmission type display, that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless of the position from which the display screen is observed. A transmission type display 10 comprises an LCD panel 11, and a surface light source device 16 for illuminating the LCD panel 11 from its rear. The surface light source device 16 includes a plurality of cathode ray tubes 13 that are arranged in parallel. A diffusing sheet 14 and a convergent sheet 12 are placed between the cathode ray tubes 13 and the LCD panel 11 in the surface light source device 16. The diffusing sheet 14 includes, on its light-emerging side surface, a diffusion lens array 141. The diffusion lens array 141 has a plurality of unit lenses (the diffusion lens array 141 is formed by regularly arranged unit lens groups each constituted by arranging a lower unit lens 141a and a higher unit lens 141b), each unit lens being in a shape equivalent to a part of an elliptic cylinder having an elliptical section. The convergent sheet 12 has a plurality of unit lenses 121 having almost trapezoidal cross sections, formed on its surface on the cathode ray tubes 13 side. It is therefore possible to attain uniform illumination by diffusing light from the cathode ray tubes 13 in the surface light source device 16. At the same time, it is possible to converge the light serving as backlight to enhance optical efficiency.
Owner:DAI NIPPON PRINTING CO LTD
Cell comprising a power-generating element fastened by sheets
InactiveUS7129001B2Inhibit swellingReduction in capacityCell seperators/membranes/diaphragms/spacersLarge-sized flat cells/batteriesElliptic cylinderEngineering
A cell such as a nonaqueous electrolytic secondary cell includes a plurality of power-generating elements which each include a strip-like positive electrode and a strip-like negative electrode that are both wound into an elliptic cylinder with a separator being interposed therebetween, where each power-generating element has a peripheral face including at least a flat portion. The cell also includes a cell case for housing the power-generating elements, where the cell case has an opening, and a cover hermetically sealing the opening of the cell case. The flat portion of each power-generating element is superposed on the flat portion of the adjacent power-generating element, and a sheet member is wound around peripheries of the superposed power-generating elements to fasten the power-generating elements such that the power-generating elements are integrated.
Owner:GS YUASA INT LTD
Diffusing sheet, surface light source unit, and transmission type display
InactiveUS7408708B2Increase brightnessOther printing matterElongate light sourcesDiffusionDisplay device
A diffusing sheet, a surface light source unit, and a transmission type display that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless of the position from which the display screen is observed. The diffusing sheet includes, on its light-emerging side surface, a diffusion lens array having a plurality of unit lenses, each unit lens being in a shape equivalent to a part of an elliptic cylinder having an elliptical cross section. The surface light source unit includes the diffusing sheet and a convergent sheet 12 that has a plurality of unit lenses 121 having almost trapezoidal cross sections, formed on one surface thereof. It is possible to attain uniform illumination by diffusing light from cathode ray tubes in the surface light source unit, and, at the same time, to converge the light serving as backlight to enhance optical efficiency.
Owner:DAI NIPPON PRINTING CO LTD
Diffusing sheet, surface light source device, and transmission type display
ActiveUS7510308B2Improve diffusion abilityDiffusing elementsOptical light guidesDiffusionDisplay device
Owner:DAI NIPPON PRINTING CO LTD
Surface light source device
InactiveUS20090201665A1Reduce brightness unevennessGood colorNon-electric lightingPoint-like light sourceElliptic cylinderRefractive index
A surface light source device including a light source unit having a plurality of light-emitting sources in a two-dimensional direction, and a lenticular lens sheet having a plurality of unit lenses, each of which is a part of a substantially elliptic cylinder, such that lens surfaces of the unit lenses face a light emergent side. There is a particular relationship between an interval at which the light-emitting sources are arranged in the same direction as an arrangement direction of the unit lenses, an interval between the light emitting sources and a rear surface of the lenticular lens sheet, a unit-lens end-portion angle, and the refractive index of the material of the lens sheet.
Owner:DAI NIPPON PRINTING CO LTD
Implantation type bioelectrode and method for producing the same
InactiveCN101502699AGood treatment effectRealize long-term implant useInternal electrodesExternal electrodesElliptic cylinderMolecular materials
The invention relates to an implanted bioelectrode and a manufacturing method thereof, belonging to the technical field of micro manufacturing. An implanted bioelectrode comprises electrode stimulating points arranged on a Si substrate or glass substrate, electrode recording points positioned at the head of the work end and a metal micro wire which is positioned on a metal ring at the electrode connecting end and used for connecting the stimulating points and the end metal ring and forming the recording points; the work end of the electrode is sealed by nondegradable high molecular material with good biocompatibility into an elliptic cylinder shape; the connecting end of the electrode is sealed into a cylinder shape; the stimulating points are distributed at the upper and lower sides of the elliptic cylinder face of the bioelectrode work end; the recording points are positioned at the head of the bioelectrode work end. A manufacturing technique of the implanted bioelectrode comprises the following steps: 1) manufacturing stimulating points on the Si substrate or the glass substrate; 2) winding plural strands of micro wires into the spiral micro wires on a mandrel; 3) connecting the micro wire and placing the micro wire into a sealing die to form the work end of the bioelectrode; 4) being sheathed sequentially with the connecting end metal ring and being placed into the die to be sealed; and 5) truing to form two recording points to finish the micro-bioelectrode.
Owner:XI AN JIAOTONG UNIV
Method for preparing superfine phenolic fibre
ActiveCN102899738AIncrease the degree of cross-linkingFully crosslinkedMonocomponent synthetic polymer artificial filamentNon-woven fabricsFiberElectrospinning
The invention relates to a method for preparing superfine phenolic fibre, comprising the following steps of: firstly, preparing commercially available soluble phenolic resin with low molecular weight (Mw)of 500-3000 into organic solution containing 10-40wt% of soluble phenolic resin; secondly, adding high molecular weight linear polymer into the solution and stirring until the high molecular weight linear polymer is completely dissolved, wherein mass ratio of the high molecular weight linear polymer to the soluble phenolic resin is 1: (20-100); and thirdly, carrying out electrostatic spinning on the solution to obtain the superfine phenolic fibre and a phenolic fiber felt, wherein relative humidity RH of an electrostatic spinning experiment is 15-55%, and the obtained superfine phenolic fibres can be cylindrical, elliptic cylinder-shaped and belt-shaped. Aiming at the characteristic that low-molecular-weight phenolic resin can be easily melted, the invention provides a non-constant-speed stepped heating and curing process, and curing time is shortened under the condition that the fibers are fully crosslinked and are not melted.
Owner:TSINGHUA UNIV
Radiator for concentrating photovoltaic photoelectric-converting receiver
InactiveCN103633932ASimple structureReduce manufacturing costPhotovoltaicsPhotovoltaic energy generationElliptic cylinderEngineering
The invention relates to a radiator for a concentrating photovoltaic photoelectric-converting receiver, and belongs to the technical field of solar power generation. The radiator comprises primary heat-radiating fins, secondary heat-radiating fins, a radiator soleplate and a concentrating photovoltaic photoelectric-converting receiver installing area, wherein one surface of the radiator soleplate is provided with a primary heat-radiating fin array and secondary heat-radiating fin arrays in two different shapes, and the other surface of the radiator soleplate is provided with the concentrating photovoltaic photoelectric-converting receiver installing area. The radiator disclosed by the invention has the advantages of simple structure and low manufacturing cost; natural wind can be guaranteed to enter the inner part of the radiator as much as possible through the surrounding arrays of the secondary heat-radiating fins of the radiator; the natural wind can be refracted in different directions at the inner part of the radiator when acting on the internal cylinder or elliptic-cylinder arrays of the secondary heat-radiating fins, and meanwhile, hot air at a higher level is brought to staggered heat-radiating arrays at a lower level in the mode of airflow flowage, so that the natural wind entering the heat-radiating fins is guaranteed to bring more hot air in the radiator to the air outside the radiator to be exchanged through many times of refraction and circulation, and therefore the heat radiation and the cooling for the radiator are guaranteed to be furthest carried out through the natural wind.
Owner:成都聚合科技有限公司
Moisture-retention microneedle matrix array surface bioelectric electrode
InactiveCN105748065AIncrease profitImprove stabilityDiagnostic recording/measuringSensorsChemical platingEngineering
The invention relates to a moisture-retention microneedle matrix array surface bioelectric electrode.The moisture-retention microneedle matrix array surface bioelectric electrode comprises an electrode body, a signal processing module, a heat-transfer insulating thin film layer and an ultra-thin hook and loop fastener or a self-attachment thin film and is constructed through a 3D or die casting mode.The electrode body is a hollow cylinder or elliptic cylinder and is internally provided with a cavity used for storing liquid electrolyte, a solid or hollow microneedle array is distributed on the upper surface of the electrode body, a series of micropores are formed between microneedles, the surface of the electrode body is plated with silver, gold or platinum and other conductive metal through a chemical plating method, an electrochemical deposition method, a vacuum evaporation method or a magnetron sputtering method or other methods, the back side of the electrode body is provided with the signal processing module provided with a voltage follower, and a voltage follower circuit is encapsulated by heat-transfer insulating glue and attached to the ultra-thin hook and loop fastener or the self-attachment thin film.The moisture-retention microneedle matrix array surface bioelectric electrode has the denoising and moisture retention functions, and improves stability of bioelectric signal acquisition.
Owner:TIANJIN POLYTECHNIC UNIV
Passive heat-reduction and drag-reduction device and method for high-velocity flow-around boundary layer
ActiveCN107972850AInhibit growthReduce local frictionDrag reductionAir-flow influencersElliptic cylinderPrism
A passive heat-reduction and drag-reduction device and method for a high-velocity flow-around boundary layer. A plurality of rough belts are arranged on the surface of an aircraft to achieve passive heat reduction and drag reduction of the high-velocity flow-around boundary layer of the aircraft. Under the condition of high-velocity flows, the flow-around characteristic, near the wall surface (namely, in the area that the Mach number >= 3.5 and the distance to the wall surface <= 0.3 times the nominal thickness of a local boundary layer), of the high-velocity boundary layer is utilized to propose new principles of delayed heat transition in a laminar flow area and heat reduction and drag reduction in a turbulent flow area. The use of elliptic cylinders, quasi-prisms or rectangular columnscan produce a stable trailing vortex structure and isolated roughness elements of which the height <= 0.3 times the nominal thickness of the local boundary layer so as to achieve the functions of thedelayed transition in the laminar flow area and the heat reduction and drag reduction in the turbulent flow area. The passive heat-reduction and drag-reduction device and method for the high-velocityflow-around boundary layer can effectively reduce the energy consumption and the heat protection pressure of the aircraft and improve the endurance ability and payload of the aircraft under the condition that the flight Mach number >= 3.5 and without changing the appearance of the aircraft, applying additional energy or increasing additional equipment.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS
Subwavelength Photonic Crystal Waveguide in Optical Systems
ActiveUS20170146738A1Reduce bend lossIncrease lossCoupling light guidesOptical waveguide light guideElliptic cylinderPrism
An optical system is disclosed. The optical system comprising: a substrate; and a subwavelength photonic crystal waveguide atop the substrate, wherein the subwavelength photonic crystal waveguide comprises a periodic one or two-dimensional array of two or more interleaved dielectric pillars; wherein the periodicity of the one or two-dimensional array is constant, a combination of two or more periods, or random; wherein the one or two-dimensional array is substantially linear or curved; wherein each of the pillars of the one or two-dimensional array is at least one of a triangular prism, a trapezoidal prism, an elliptic cylinder, a cylinder, a tube, a frustum, a pyramid, a trapezoidal prism, and an asymmetric frustum; and wherein each of the pillars of the one or two-dimensional array comprises a solid, liquid, and / or gas. Other embodiments are described and claimed.
Owner:OMEGA OPTICS
Light guide plate of LED backlight unit
ActiveUS7350958B2Easy to operatePromote productionPlanar/plate-like light guidesWaveguidesExit planeLight guide
A light guide plate of an LED backlight unit is disclosed. The light guide plate comprises a pair of wide planes facing each other, and a narrow plane formed between the pair of wide planes and constituting a thickness of the light guide plate. The narrow plane has an incident plane formed on a section of the narrow plane facing the LED light source, and one of the wide planes constitutes an exiting plane from which light entered from the LED light source exits. The incident plane has a plurality of elliptic cylinder-shaped grooves carved into the incident plane in a thickness direction of the light guide plate. As such, the elliptic cylinder-shaped grooves are carved into the incident plane of the light guide plate in the thickness direction, widening an incidence angle of which light can be transmitted therethrough.
Owner:SAMSUNG ELECTRONICS CO LTD
Diffusion plate, surface light source device and transmission type display device
InactiveCN1683974ANo reduction in utilization efficiencyUniform lightOther printing matterElongate light sourcesDiffusionEllipse
A diffusing sheet, a surface light source unit, and a transmission type display that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless of the position from which the display screen is observed. The diffusing sheet includes, on its light-emerging side surface, a diffusion lens array having a plurality of unit lenses, each unit lens being in a shape equivalent to a part of an elliptic cylinder having an elliptical cross section. The surface light source unit includes the diffusing sheet and a convergent sheet 12 that has a plurality of unit lenses 121 having almost trapezoidal cross sections, formed on one surface thereof. It is possible to attain uniform illumination by diffusing light from cathode ray tubes in the surface light source unit, and, at the same time, to converge the light serving as backlight to enhance optical efficiency.
Owner:DAI NIPPON PRINTING CO LTD
Light guide place and light-diffusing structure thereof
InactiveUS7808578B2Good light diffusion effectImprove brightness uniformityPlanar/plate-like light guidesNon-linear opticsLight guideEllipse
A light guide plate that is divided into an effective section capable of providing uniform surface illumination and a transitional section between the effective section and the point light source includes a light-receiving surface, a light-emitting surface, a light-reflecting surface, and a plurality of light-diffusing structures. The light-diffusing structures are spread on the transitional section, and each light-diffusing structure is in the shape of a part elliptic cylinder having a long axis and a short axis and the front surface of the light-diffusing structure facing the point light source is a part elliptic cylindrical surface.
Owner:WINTEK CORP
Central type tendon anastomat
InactiveCN101991445AQuality improvementHigh strengthSuture equipmentsSurgical needlesSuturing needleTendon healing
The invention provides a central type tendon anastomat which comprises a body part (3), two suture lines (2) and two suture needles (1), wherein the body part (3) is in a long strip structure made of a degradable biomaterial, the middle section of the body part (3) is an elliptic cylinder, and both ends of the body part (3) are elliptic cones; one ends of the two suture lines (2) are respectively connected with both ends of the body part (3), and the other ends of the two suture lines (2) are respectively connected with the tail parts of the two suture needles (1). The central type tendon anastomat can always provide sufficient stretching resistance during the tendon healing period so that rehabilitation activities can be started immediately without braking, after a tendon repair operation, synechia between the tendon and tendon surrounding tissues is avoided, the quality and the strength of tendon anastomosis are greatly improved, and a second operation is omitted.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
Line light source, backlight module and display device
InactiveCN103672745AReduce thicknessGuaranteed display qualityMechanical apparatusPoint-like light sourceLight guideDisplay device
The invention relates to the technical field of display, in particular to a line light source, a backlight module adopting the line light source and a display device adopting the backlight module. The line light source comprises an elliptic cylinder type light guide rod and a point light source, wherein the point light source is arranged at the end of the elliptic cylinder type light guide rod. According to the line light source, the elliptic cylinder type light guide rod is arranged, and the point light source is arranged at the end of the elliptic cylinder type light guide rod which is used for converting light which passes through the point light source in an incident mode into the line light source. Due to the utilization of the elliptic cylinder type light guide rod, light can be diffused to a larger angle, when the line light source is applied to the backlight module, on the premise that display quality is guaranteed, the light mixing distance can be further reduced, the thickness of the backlight module can be reduced, and a powerful technical support is provided for achieving the ultra-thin direct type display device.
Owner:BOE TECH GRP CO LTD
Magnetic device applicable to anastomosis of large vessels
InactiveCN102133120APrevent stenosisAvoid leaking bloodSurgical staplesGranuloma formationOrthodontic ligature
The invention discloses a magnetic device applicable to anastomosis of large vessels. Two elliptic-cylinder-shaped anastomosing rings which correspond to the pipe diameter of the large vessels to be anastomosed and contain permanent magnets are utilized to finish anastomosis of the vessels with different pipe diameters; the opposite surfaces of two permanent magnet anastomosing rings are smooth and polished, so that the endangiums of the vessels are neatly aligned, and further the defects of narrow anastomosing ports, blood leakage, and various complications such as massive haemorrhage, local tissue granuloma and pseudoartery formation and the like due to slipping of ligatures caused by manual suture for anastomosis are avoided; as the anastomosing rings are designed to be elliptic-cylinder-shaped, clamping and fixing with surgical instruments in surgery are convenient, and the magnetic device is very beneficial to anastomosis operation of the large vessels at deep parts of the body cavity; and the time of utilizing the anastomat to carry out anastomosis on the large vessels is more than five times shorter than that of manual anastomosis, so that the condition that the blood of tissues and organs are blocked for long time so as to cause ischemic operation of the organs or congestion and edema and further cause dysfunction of the organs. In addition, the end surface adopts conical titanium alloy needles and corresponding conical small holes so as to be beneficial to tight alignment of the anastomosing ports in surgery.
Owner:XI AN JIAOTONG UNIV
Accumulator
InactiveCN1427498AInhibit swellingReduce capacityPrimary cell to battery groupingCell seperators/membranes/diaphragms/spacersElliptic cylinderEngineering
A cell such as a nonaqueous electrolytic secondary cell includes a plurality of power-generating elements which each include a strip-like positive electrode and a strip-like negative electrode that are both wound into an elliptic cylinder with a separator being interposed therebetween, where each power-generating element has a peripheral face including at least a flat portion. The cell also includes a cell case for housing the power-generating elements, where the cell case has an opening, and a cover hermetically sealing the opening of the cell case. The flat portion of each power-generating element is superposed on the flat portion of the adjacent power-generating element, and a sheet member is wound around peripheries of the superposed power-generating elements to fasten the power-generating elements such that the power-generating elements are integrated.
Owner:GS YUASA INT LTD
Technology of preparing special-shaped cutting steel wire
InactiveCN102166584AFast cutting speedSimple preparation processExtrusion cleaning devicesMetal rolling arrangementsEllipseElliptic cylinder
The invention relates to a technology of preparing special-shaped cutting steel wire, comprising the following steps: (1) coarse wire drawing, during which step the steel wire rod of Phi5.5-6.5mm is drawn into the steel wire of Phi2.80-3.25mm, (2) middle filament heat treatment, (3) intermediate drawing, during which step the steel wire of Phi2.80-3.25mm is drawn into the steel wire of Phi 0.76-1.15mm, (4) wet drawing, during which step the steel wire of Phi0.76-1.15mm is drawn into the steel wire of Phi0.08-0.3mm, (5) press rolling, during which step the steel wire is rolled into the steel wire having a cross section of polygon or ellipse, (6) electroplate / bonding, during which step SiC or diamond particle abrasive is fixed upon the external surface of the steel wire in an electroplating or glue-bonding manner, and (7) taking up, during which step the finished product is obtained. The preparing technology of the invention is simple, environment-friendly, efficient, and of low cost. The cutting steel wire prepared via this technology takes the shape of elliptic cylinder or polygon body, with hardness and tensile strength substantially improved, effectively decreasing the wire-broken rate, accelerating cutting speed of steel wire, and improving the cutting efficiency.
Owner:合肥得一新材料科技有限公司
Double-frequency circularly polarized antenna
ActiveCN105591193ASimple structureCompact structureWaveguide hornsSimultaneous aerial operationsAntenna impedanceLong axis
The invention discloses a double-frequency circularly polarized antenna, which comprises, from top to bottom, a cone-shaped bell mouth, a low frequency resonant cavity, and a high frequency resonant cavity sequentially. The side wall of the low frequency resonant cavity and the side wall of the high frequency resonant cavity are fixedly provided with a low frequency polarized probe and a high frequency polarized probe respectively and correspondingly. The two resonant cavities are respectively in the shape of an elliptic cylinder, and the elliptical long axes are respectively and correspondingly collinear with the probes. The projections of the elliptical long axes of the two resonant cavities on the interface of the two resonant cavities are vertical to each other. The antenna provided by the invention is advantageous in that the impedance bandwidth is greater than 20%, the bandwidth inner gain is greater than 8.5 dB, the radiation efficiency is greater than 81.5%, the axis ratio bandwidth smaller than 3dB is greater than 25%, and the port isolation bandwidth is greater than 30%, and the central frequency of the double-frequency end is 1.5; the structure of the whole antenna is simple and compact, and the radio efficiency is high; the double-frequency circularly polarized radiation is adopted, and the antenna can be used as the plane array radiation unit, and therefore the high efficiency narrow wave beam radiation can be realized.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Environment-friendly wood processing equipment
InactiveCN110014492AAchieve passive disengagementPoor peeling effectTree debarkingElliptic cylinderPulp and paper industry
The invention discloses environment-friendly wood processing equipment. The equipment structurally comprises a wood accommodating groove, a rack, a bark scraper, a driving motor and a bark removing roller. The environment-friendly wood processing equipment has the beneficial effects that bark dust cleaning structures and adjusting plates cooperate to protect wood when the wood jumping irregularlyfor bark removing reciprocates on elliptic cylinders up and down, and the situation that the wood fails to withstand jumping and is broken is avoided; in addition, part of wood bark which is not removed from the surface of the wood is removed in a scratching mode through pointed cone strips, and large-area wasting in the wood bark-removing process is avoided; and since a hooking spine removing mechanism is provided with hooking spines and external included angles formed between the hooking spines and arc-shaped plates are smaller than or equal to 60 degrees, when the hooking spines make contact with sawteeth on the surface of the bark removing roller, a large amount of bark hooked by the sawteeth can be disengaged passively by means of friction and collision between the hooking spines andthe sawteeth, and accordingly, the situation that the large amount of bark is hooked to the surfaces of the sawteeth, and consequentially, the subsequent bark removing effect is not good is avoided.
Owner:陈惠瑶
Microbe sampling enrichment culture tube
InactiveCN102232851AGood release effectEliminate potential safety hazardsBioreactor/fermenter combinationsBiological substance pretreatmentsComing outElliptic cylinder
The invention relates a microbe sampling enrichment culture tube. A sampling casing tube comprises a tube body and a cover, which are made of transparent hard plastic, wherein the upper end of the cover has a notch groove, so that the cover can be pulled open conveniently; a sealing ring is arranged at the lower end of the cover and consists of a sealing convex ring A and a sealing convex ring B; one side of each of the sealing convex rings A and B is a plane and the other end of each of the sealing convex rings A and B is circular arc-shaped; the tube body and the cover are sealed tightly; the liquid and odor in the tube body do not flow outside and pollute the environment; a solid hard plastic sampling rod (excrement sampling rod and swab rod) can be inserted into the cover; the cover and the sampling rod are arranged in a split manner, so when the sampling rod is pulled out, the sampling casing tube can be used alone; the sampling rod has steps serving as identifiers for the depth in the anus; the tail end of the sampling rod has a round head shaped liked a steamed bread, and three smooth excrement sampling rings are arranged at the position close to the round head; and the elliptic cylinder at the tail end of a virus and bacterial swab rod has nylon flocking. The microbe sampling enrichment culture tube is well sealed, so liquid and odor are prevented from coming out and environment protection is promoted; the thickness of the excrement sampling rod is so proper that a patient feels comfortable and has no pain; and the examination is visual, the carrying and operation are convenient, and the structure is simple.
Owner:马均彪 +2
Spinal cord micro-catheter stent fast to form and manufacturing method thereof
InactiveCN105030386AAccurate printingNon-destructive propertiesSpinal implantsFine structureInsertion stent
The invention provides a spinal cord micro-catheter stent fast to form. The spinal cord micro-catheter stent comprises a micro-catheter stent body in an elliptic cylinder shape. A hollow area used for allowing corticospinal tracts, fasciculus gracilis, fasciculus cuneatus and spinothalamic tracts to grow is arranged in the micro-catheter stent body. The outer diameter of the spinal cord micro-catheter stent body is 2.5 mm-3.5 mm, and the wall thickness of the micro-catheter stent body is 0.1 mm-1.0 mm. The size and the microscopic structure of a model are designed according to the electrophysiology structure and the exquisite position of natural nerves of the spinal cord, the low-temperature fast forming printing technology is adopted for accurately printing the fine structure of a patient, and the stent can be used for treatment and research on spinal cord injuries.
Owner:THE CHINESE PEOPLES ARMED POLICE LOGISTICS INST AFFILIATED HOSPITAL
Novel sit-washing device for gynecology department
InactiveCN107320322ASimple structureSimple and fast operationEnemata/irrigatorsMedical devicesElliptic cylinderEngineering
The invention discloses a novel sit-washing device for the gynecology department. The novel sit-washing device comprises a supporting plate. Two connecting columns are arranged on the two sides of the upper surface of the supporting plate. A washing base is arranged at the upper ends of the connecting columns. The washing base is of an elliptic cylinder structure. A washing shell is arranged on one side of the washing base. A sliding rail is arranged in the washing shell, a linear motor is arranged on the sliding rail, and a connecting frame is arranged on one side of the linear motor. Washing liquid in a liquid containing box can be extracted into a flushing frame through a water suction pump, a patient in the gynecology department can be washed through the flushing frame, flushing is more convenient, the linear motor drives a washing head to move to wash the private part of the patient in the gynecology department, and then washing is more convenient. The novel sit-washing device for the gynecology department is simple in structure and easy and convenient to operate, the patient can wash the private part in a sitting mode, an electric appliance can drive the washing device to carry out washing, convenience is brought for medical staff, and meanwhile the patient is more conveniently washed.
Owner:迟亚松
Displacement detecting device based on inner reflector of elliptic cylinder
InactiveCN101963492AImproving the accuracy of displacement detectionHigh measurement accuracyUsing optical meansLocation detectionPhotoluminescence
The invention discloses a displacement detecting device based on an inner reflector of an elliptic cylinder. In the device, a convex lens imaging principle is skillfully applied; the detection of the position of a light convergence point is converted into the detection of the most photosensitive point on an linear array photosensitive element by a photoluminescence substance (or a diffuse reflectance material), the inner reflector of the elliptic cylinder and the linear array photosensitive element; and the detection can be carried out only by a computer. The device comprises a point light source laser, a convex lens, the inner reflector of the elliptic cylinder and the linear array photosensitive element, wherein the point light source laser and the inner reflector of the elliptic cylinder are put on the same side of the convex lens; the photoluminescence substance (or the diffuse reflectance material) is coated on a focal line of the inner reflector of the elliptic cylinder; the focal line is superposed with an optical axis of the convex lens; and the linear array photosensitive element is put on the other focal line of the inner reflector of the elliptic cylinder for detecting the displacement of a surface to be detected. The device has the advantages of simple structure, convenient use and high measurement precision.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Forming method of large-concentration-ratio upset forging components made of titanium alloy
ActiveCN105328112APromote aggregationImprove coaxialityMetal-working apparatusEngine componentsConcentration ratioElliptic cylinder
The invention aims at solving the problem that upset forging rods with large concentration ratio are difficult to obtain by an upset forging manner in the prior art, and provides a forming method of large-concentration-ratio upset forging components made of titanium alloy. The method comprises the following steps of: taking a bar material made of the titanium alloy, heating the bar material, and placing one end of the bar material in a forging die; performing forging with a forging machine till the ratio of the diameter of the large end of the deforming part of the bar material in the die to the diameter of the small end of the deforming part of the bar material is 1.1-1.5 and the large end and the part which does not deform form a bending angle of R30-R50; performing forging seven times so as to obtain an upset forging component with large concentration ratio. According to the method, the bar material made of the titanium alloy is used as a starting material, through seven times of upset forging, a titanium-alloy upset forging blank with a large end in a parallelogram cylinder shape, a rhombic cylinder shape, a cylindrical shape, or an elliptic cylinder shape and the like is formed, and the maximum concentration ratio reaches 7.1. Through the adoption of the method, the coaxiality of forging blanks and the surface quality of the forging blanks are improved; the grinding amount in subsequent procedures is reduced, and the qualification rate of final forgings is increased; the production efficiency is improved; the production cost is reduced.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
Light guide plate of LED backlight unit
ActiveUS20070115689A1Easy to operatePromote productionMechanical apparatusPlanar/plate-like light guidesExit planeLight guide
A light guide plate of an LED backlight unit is disclosed. The light guide plate comprises a pair of wide planes facing each other, and a narrow plane formed between the pair of wide planes and constituting a thickness of the light guide plate. The narrow plane has an incident plane formed on a section of the narrow plane facing the LED light source, and one of the wide planes constitutes an exiting plane from which light entered from the LED light source exits. The incident plane has a plurality of elliptic cylinder-shaped grooves carved into the incident plane in a thickness direction of the light guide plate. As such, the elliptic cylinder-shaped grooves are carved into the incident plane of the light guide plate in the thickness direction, widening an incidence angle of which light can be transmitted therethrough.
Owner:SAMSUNG ELECTRONICS CO LTD
Feed network-based low-frequency compact range feed source
ActiveCN105680158AShorten the lengthReduce volumeWaveguide hornsAntenna supports/mountingsDipole antennaHigh mode
The invention relates to a feed network-based low-frequency compact range feed source, which comprises an ultra-broadband orthogonal dipole antenna (1), a feed network (2), a reflective plate (3), an elliptic cylinder opening surface (4), a support structure (5), a flange plate (6) and a wave-absorbing material (7). The feed source constructs a relatively stable feed source radiation pattern by the elliptic opening surface with a specific length-width ratio, and achieves the characteristics of relatively large 3dB beam width of a horizontal direction pattern and relatively small 3dB beam width of a vertical direction pattern on two different incident polarizations. By introducing a broadband feed network, the length of a feed source horn is greatly reduced. Ultra-broadband oscillators are excited through the feed network; and <e>TE<11> and <o>TE<11> modes with higher mode purity are excited. A support post with a certain length is configured behind the horn antenna of the feed source; the opening surface of the horn antenna is far away from a feed source bracket; a wave-absorbing material with a specific size is added to the bottom part of the support post; and multiple radiation caused by a complicated metal structure of the feed source bracket is inhibited. The feed source mainly works at a low frequency; and the specific frequency range is (300MHz-500MHz).
Owner:BEIHANG UNIV
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