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75 results about "Archimedes' screw" patented technology

The water screw, popularly known as the Archimedes' screw and also known as the screw pump, Archimedean screw, or Egyptian screw, is a machine used for transferring water from a low-lying body of water into irrigation ditches. Water is pumped by turning a screw-shaped surface inside a pipe. Archimedes screws are also used for materials such as powders and grains. Although commonly attributed to Archimedes, the device had been used in Ancient Egypt long before his time.

Paint brush cleaning device

The paintbrush-cleaning device includes a housing with an open top, a bottom drain and a means to hold paintbrushes into the housing's central space, which has paintbrush-cleaning liquid therein. A pair of rotatable radial brushes brackets the paintbrushes in the central space and are powered by an electric motor connected to the housing. A number of spaced upwardly directed jet nozzles are disposed in the central space for directing streams of cleaning liquid under pressure upwards towards the paintbrushes. An impeller pump may be connected to a manifold in the central space, from which manifold the jet nozzles extend. Two radial brushes may be used, with the members disposed opposite each other adjacent the sides of the top opening. The radial brushes bear a bristle portion comprising cleaning bristles, which is configured in a spiral along the length of the radial wound brush so that the radial brushes transport cleaning fluid upward and forward from the central space to the paintbrushes via the Archimedes screw principle. The device is simple, durable and efficient.
Owner:BRACKETT TED J +1

Archimedes screw turbine generator

An Archimedean screw turbine generator of increased efficiency is disclosed. Rather than having the helical flighting of the turbine perpendicular to the central torque tube, this design incorporates cupped or cambered flighting. This increases the turbine's overall efficiency, as well as its efficiency across a broad range of fluid flows. The improved Archimedean screw turbine produces efficient power from about 5 percent of design flow to about 110 percent of design flow. In addition, design flow efficiency is 9-10 percent better than existing Archimedean screw generators. Prior art turbines of the Archimedean screw type operate efficiently only near design-rated flows. Most are turned off if flows drop more than 30 percent below deign-rated flow figures. For a presently-preferred embodiment of the invention, the screw axially rotates within a close-fitting half pipe. A three-phase permanent-magnet AC servo motor is used as a generator.
Owner:HARDING ROBERT WARD +1

Planar helical antenna of combined structure

The invention discloses a planar helical antenna of a combined structure. A planar equiangular helical antenna is combined with a planar Archimedes screw antenna. One and half ring of equiangular helix structure is used in the inner ring, an Archimedes helix structure is used in the outer ring, and the tail end of equiangular helix is in seamless connection with the initial end of Archimedes helix. The planar helical antenna of the combined structure is a groove-radiation planar helix antenna with double symmetrical arms, the diameter of the antenna is 50mm, the thickness of an antenna base plate is 0.8mm, and a dielectric slab of a dielectric constant of 2.2 is used. The planar helical antenna also comprises four surface-mounted resistors, wherein the resistance of the resistor is 160ohm, the resistors are connected between the outermost ring and the last but one ring of the antenna, and the angle between the adjacent surface-mounted resistors is 90degree; and the antenna further comprises two copper rings arranged in the periphery of the antenna. According to the invention, the size of the planar helical antenna is effectively reduced, and the circular polarization performance of the antenna is improved.
Owner:JIANGSU UNIV OF SCI & TECH

Concrete Power Saw

A concrete saw for cutting a concrete slab incorporating a rollable trolley having upper, lateral, front, and rear ends; an engine fixedly attached to the rollable trolley, the engine having a rotary power output; a blade connected operatively to the engine's rotary power output for, upon movement of the first rollable trolley over the concrete slab, slotting said slab and drawing concrete cuttings therefrom; a shroud fixedly attached to the first rollable trolley, the shroud having a plurality of side walls, a floor, and a ceiling, the shroud housing the blade, and defining a dust containment space; an Archimedes' screw having input and output ends, the Archimedes screw's input end being positioned within the shroud's dust containment space; power transfer gears connected operatively to the Archimedes screw's for conveying the concrete cuttings from the Archimedes screw's input end to the output end; and a receptacle under the output end.
Owner:BOURGET KYLE

Upsetting force self-compensation stirring tool for aclinal frication stir welding and welding method

The invention relates to an upsetting force self-compensation stirring tool suitable for aclinal frication stir welding. The upsetting force self-compensation stirring tool comprises a clamping section, a cylindrical section and a stirring needle. The clamping section, the cylindrical section and the stirring needle are of an integrated structure from top to bottom. The clamping section is a cylinder, and a plane used for fastening is milled in the side face of the clamping section. The cylindrical section is a cylinder, the diameter of the cylindrical section is larger than that of the clamping section, and a heat radiating groove is formed in the circumferential direction of the cylindrical section. The lower end face of the cylindrical section is a shaft shoulder. The outer circle of the shaft shoulder is a plane and is provided with at least two archimedes screw grooves. The inner circle of the shaft shoulder is inwards concave. The inwards-concave part and the stirring needle achieve smooth transition. The stirring needle is a thick-end-up circular truncated cone. The side face of the stirring needle has a thread feature. The upsetting force self-compensation stirring tool anda conventional inwards-concave type stirring tool have a function that upsetting force self-compensation is generated for welded material along with welding, and the hole defect liable to occur to aclinal frication stir welding can be avoided effectively.
Owner:SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY

Conveying screw apparatus for transporting loose material

A conveying screw apparatus for transporting loose material. The apparatus includes: —a power unit apt to rotate an Archimedes screw pushing the loose material; —a charging hopper of the loose material in a tubular body containing the Archimedes screw and the loose material; —a feeding channel of the loose material towards a user; —pushing elements of the loose material present in the feeding channel; and —a back flow preventing device, preventing the back flow of pushing air together with loose material; such a device closing, in case, a through hole to the feeding channel. The back flow preventing device includes a shutter, provided with a plate, undergoing the action of a helical spring which, in any opening / closing step of the through hole, is always substantially perpendicular to the feeding first direction of the material in the tubular body.
Owner:WAM IND

Dispensing Apparatus

A dispensing apparatus for dispensing a controlled amount of powder, the apparatus comprising a hopper defining an exit aperture; an Archimedes screw rotatably supported in the hopper and configured to expel powder from the exit aperture; an actuator configured to rotate the Archimedes screw; a cover configured to selectively close the exit aperture; and a clutch arrangement between the cover and the Archimedes screw. Movement of the cover is controlled by the Archimedes screw through the clutch arrangement.
Owner:MILKO YORKSHIRE

Identical graduation method for measuring contour curve of Archimedes screw cam

The invention discloses an identical graduation method for measuring a contour curve of an Archimedes screw cam, which comprises the following steps of: establishing a measuring coordinate system on the face of the Archimedes screw cam; and measuring the contour curve by using a polar coordinate system and adopting an identical graduation measuring method. The vector direction of the measurement points to an original point, and an arrow approaches and measures the coordinates of an Aj point from a Pj position along the radial direction by using a measuring machine until the whole contour curve is measured; and the generated data file can be read by universal software so as to realize arrow radius compensation and reverse engineering and the like. The detection of the curve and the regression analysis in any curve range are accomplished by the generated data file. The method is applied in the detection of the Archimedes screw cam, the linear analysis on a cam two-dimensional curve, the study on a cam mechanism, the study on measurement technology, equation reverse, reverse engineering and the like in the machine manufacturing industry.
Owner:HONGTA TOBACCO GRP

Fountain

A modular fountain assembly for controlling the temperature and flow of viscous fluid with a melting point between ambient and approximately 150 degrees Fahrenheit is disclosed. The modular assembly for controlling the heating and flow of fluid includes an enclosed controlling base and an upper recirculation module having a detachable lower basin, one or more modular tubular sections, a small high basin on top of the highest tubular section, an Archimedes screw of a set pitch dimension to facilitate the flow of the fluid from the lower reservoir to the small high reservoir atop the tubular section or sections, and a series of circular tiers atop each tubular section. The lower basin is attached to the controlling base using mechanical or electro mechanical support structures. The controlling base provides rotational force for the Archimedes screw at variable rotational speeds to drive the fluid upward within the modular tubes as well as a heating sub module. The lower basin has an upper bowl and a lower pool of fixed set depth with an opening to permit a drive shaft attach to the Archimedes screw. The circular base controls the temperature of the fluid using a temperature probe protruding from the lower base into the lower basin. The bottom modular tube attaches to one or more vertical support structures that extends from the controlling base thru the lower reservoir. The circular tiers are held stationary between modular tube sections or between the highest tubular section and the high basin.
Owner:JAFFE MARTIN J

Fountain

A modular fountain assembly for controlling the temperature and flow of viscous fluid with a melting point between ambient and approximately 150 degrees Fahrenheit is disclosed. The modular assembly for controlling the heating and flow of fluid includes an enclosed controlling base and an upper recirculation module having a detachable lower basin, one or more modular tubular sections, a small high basin on top of the highest tubular section, an Archimedes screw of a set pitch dimension to facilitate the flow of the fluid from the lower reservoir to the small high reservoir atop the tubular section or sections, and a series of circular tiers atop each tubular section. The lower basin is attached to the controlling base using mechanical or electro mechanical support structures. The controlling base provides rotational force for the Archimedes screw at variable rotational speeds to drive the fluid upward within the modular tubes as well as a heating sub module. The lower basin has an upper bowl and a lower pool of fixed set depth with an opening to permit a drive shaft attach to the Archimedes screw. The circular base controls the temperature of the fluid using a temperature probe protruding from the lower base into the lower basin. The bottom modular tube attaches to one or more vertical support structures that extends from the controlling base thru the lower reservoir. The circular tiers are held stationary between modular tube sections or between the highest tubular section and the high basin.
Owner:JAFFE MARTIN J

Automatic cylinder bearing dismounting equipment

The invention provides automatic cylinder bearing dismounting equipment. The automatic cylinder bearing dismounting equipment comprises a three-jaw type adjustable clamping mechanism, a bearing lifting mechanism used for lifting the three-jaw type adjustable clamping mechanism and a quick lifting platform, wherein the three-jaw type adjustable clamping mechanism mainly comprises a lifting table, the lifting table is divided into an upper part and a lower part, three slideways are processed on the upper part, an included angle between center lines of every two slideways is 120 degrees, a first tightening lug, a second tightening lug and a third tightening lug are arranged in the slideways, the tightening lugs can slide along the slideways, a first supporting leg, a second supporting leg and a third supporting leg are fixed by virtue of tightening pieces at the two sides, the supporting legs are of a hook type, the lower part of the lifting table mainly comprises a runner, the runner is connected with a central driving body by virtue of a pin, and an Archimedes screw thread is processed in the surface of the top of the central driving body. The automatic cylinder bearing dismounting equipment guarantees that a bearing can bear uniform tensile force during pulling-out operation and has the advantages that the bearing can be protected from being impacted and damaged and the dismounted bearing can be reused compared with the prior art that the bearing is pulled out by manual impact.
Owner:JIANGSU XINHAI SCI & TECH DEV CO LTD

Urban pipeline dredging mechanical vehicle

ActiveCN112663780AImprove stabilityImprove dredging conveying efficiencySewer systemsCircular discVehicle frame
The invention discloses an urban pipeline dredging mechanical vehicle, and relates to the technical field of dredging equipment. The vehicle comprises a frame; walking mechanisms are arranged on two sides of the frame; an upper dredging pipeline is transversely mounted in the middle of the top of the frame; a lower dredging pipeline is transversely mounted at the front side of the lower part of the upper dredging pipeline; and a dredging cutter head is mounted at the front ends of the upper dredging pipeline and an adjusting ring. The urban pipeline dredging mechanical vehicle is placed in a pipeline, and the triangular crawler walking mechanisms are adopted, so that the crawling stability of the mechanical vehicle in the pipeline is improved; a supporting frame is supported on a pipe wall through the adjusting ring, so that the stability of a sewage suction pump is improved; and a triangular crawler drives the mechanical vehicle to advance, a hub motor drives a dredging disc to rotate for dredging work, and cleaned sludge is uniformly reamed through a reamer, conveyed to the upper dredging pipeline through a lower Archimedes screw, continuously conveyed through an upper Archimedes screw and finally conveyed to a dredging vehicle through the sewage suction pump, so that dredging, reamed cutting and conveying are integrated, and the dredging and conveying efficiency is improved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Archimedes screw separation plant for treating slurry

An Archimedes screw plant for separating slurry includes a tubular sifting device; a slurry feeding device; a device for evacuating the liquid fraction; and a device for evacuating the substantially dry separated solid. The device includes an upper compaction chamber of the separated solid where a solid plug of product is formed. In addition, the tubular sifting device has an upper opening being provided with an auxiliary contrast element for forming said solid plug of product.
Owner:WAMGRP

Novel method for pyrogasification of organic waste

The present invention relates to a novel method for pyrogasification of organic waste. The inventive method uses a vertical furnace (1) filled with metal masses in the form of metal toroids (2), previously heated to a high temperature (500 to 1100 DEG C), and organic matter (3) to be pyrolysed. The method also involves a furnace (9) suitable for heating the toroids (2) conveyed by an Archimedes screw (18) driven by a gear motor (19), as well as a separator (11) for recovering the mineral residue (12), the toroids (2) and the residue (12) being separated using a screen (14) and an Archimedes screw (15) driven by a gear motor (16). The inventive method can be used for treating all products which contain organic matter, whether from biomass and thus considered renewable energy, or not from biomass.
Owner:VALWASTE

Pipe-inspection device propelled by an archimedes screw

A robotic device for inspecting a pipe includes at least one pair of propulsion elements each including a rotary drum, an outer surface of which has a screw thread. The device also includes a body associated with at least one pair of propulsion elements and in which are inserted sensor, at least one pair of electric motors each capable of rotating a rotary drum, and at least one pair of electric power sources each capable of powering an electric motor. The body is shaped such that a ventral portion and a dorsal portion of the device are symmetrical with one another relative to a median frontal plane of the device, thus allowing the device to move indistinctly on the belly or on the back.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Novel Archimedes screw antenna for stepping frequency ground penetrating radar

ActiveCN108172992AAxle Ratio Performance GuaranteeReduced axle ratio performanceRadiating elements structural formsAntennas earthing switches associationRight triangleDielectric substrate
The invention belongs to the design field of a stepping frequency ground penetrating radar, in particular to an Archimedes screw antenna device for a stepping frequency ground penetrating radar; and the antenna includes a dielectric substrate, an antenna arm, a wave absorbing material, a reflection cavity, a non-balance-balance feed Barren and a coaxial connector, the antenna arm is a square double-arm spiral antenna piece with four corners which are provided with cutting angles, the cutting angle is in an isosceles right triangle shape, the angle of the cutting angle ranges from 0. 5mm to 5 degrees / circle from the center to the outside and the starting angle is not larger than 45 degrees, the square double-arm spiral antenna sheet with the four corners with the cutting angles is loaded with a tail end resistor at the tail end at the minimum working frequency quarter wavelength part away from the tail end of the double arms. The invention realizes a miniaturized, wide-frequency, and high-orientation Archimedes screw antenna for a stepping frequency ground penetrating radar, and the working frequency of the antenna ranges from 250 MHz to 1600 MHz, the size of the antenna is not morethan 300 mm * 300 mm, and the axial ratio is less than 3 dB, the direction graph is good, the gain is not less than 3 dB, and the echo loss S11 is less than 10 dB.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Methods and Apparatus for Moving Fluid Using a Strake

The present invention provides improved methods, apparatus, and manufacture for an Archimedes Screw using a strake design as a blade to increase the volume of water raised or lowered by about 10%. The invention, in part, alters the shape of the blades within the screw from a helicoid shape to a strake shape. A helicoid blade in an Archimedes Screw has been used since antiquity and has not changed since then, limiting the efficiency and manufacturing process. The strake shape allows a greater quantity of water to be contained within the screw and is a developable surface that enables easier fabrication than the helicoid shape.
Owner:RORRES CHRIS

Door leaf edge packing device

ActiveCN109648662AWon't break synchronicityAutomated hemming operationOther plywood/veneer working apparatusDomestic articlesEngineeringMachining
The invention discloses a door leaf edge packing device. The door leaf edge packing device comprises a machining table; an edge packing mechanism is arranged on one end of the machining table; besides, a material taking and placing device is arranged on the other end of the machining table; the edge packing mechanism comprises a rotary shell; a rotary chuck is arranged in the rotary shell; four L-shaped moving sliding blocks are distributed on the rotary chuck at equal intervals; a rotary shaft is fixedly arranged on the rotary chuck; an Archimedes screw groove is formed in the upper surface of the rotary chuck; the rotary chuck is in meshed connection with the bottom ends of the moving sliding blocks through threads; the material taking and placing device comprises a rotary arm, a vacuumsucking disc arranged on the top end of the rotary arm and a telescopic mechanism arranged on the rotary arm; by adopting the door leaf packing device, automatic material charging and discharging arerealized, so that labor of workers is reduced, and edge packing efficiency is improved; and the rotary chuck structure is adopted by the edge packing mechanism, so that the position of clamping a doorleaf is the same each time, and the precision of edge packing of the door leaf is ensured.
Owner:DONGGUAN ZHONGJIN FURNITURE CO LTD

Archimedes spiral filtering device

InactiveCN108057281AImprove filtration efficiencyGood effect of removing oil mist and impuritiesDispersed particle separationProduct gasImpurity
The invention discloses an Archimedes spiral filtering device. The Archimedes spiral filtering device comprises a housing, a first filtering module and a second filtering module. When the Archimedes spiral filtering device works, air carrying both of oil mist and impurities enters the filtering device from the middle of the first filtering module and advances in an extending direction of first mesh plates adopting a positive Archimedes screw design. In the process, heavy gases carrying both of the oil mist and the impurities move forwards along with the airflow and are in contact with the surfaces of the first mesh plates, the oil mist and the impurities can be adsorbed onto the surfaces of the first mesh plates and are continuously gathered to form liquid oil, and the liquid oil flows back into an oil collection tank under the action of gravity. The rest gases conveniently enter the second filtering module along a positive Archimedes screw arc of the first mesh plates. After entry into the second filtering module, air advances in an extending direction of second mesh plates adopting a negative Archimedes screw design and is discharged out of an exhaust opening. In the whole process, the filtering efficiency is high, the oil mist and impurity removal effect is excellent, and the content of oil mist and the impurities in filtered air is remarkably reduced.
Owner:佛山市创世汇知识产权服务有限公司

Sludge filtering machine

The invention discloses a sludge filtrating machine which is energy-saving, simple in operation and high in deslugding rate and belongs to the technical field of sludge dewatering. The filtering machine is structurally characterized in that a driving motor is arranged in a shell and connected with a driving shaft; the driving shaft is connected with an electric cabinet; the lower part of the electric cabinet is provided with a discharge port; the end part of the driving shaft is provided with a conical body; and the inlet of the conical body is connected with a filtration shower head. According to the sludge filtering machine, the conical body structure is adopted for dewatering and compacting waste materials, so that the volume is reduced, and thus the filtration cost is reduced; the semicircular filtration shower head is adopted, so that the filtration efficiency is high; an Archimedes screw rod is used for transferring the waste materials intercepted by a filtering net to the conical body, and then most moisture of the waste materials is removed by virtue of pressure generated by the conical body; and a special brush at the outer edge of the screw rod is used for thoroughly cleaning holes of a filter and preventing the holes from being blocked.
Owner:KANGTAI JIANGSU ENVIRONMENTAL PROTECTION LTD BY SHARE LTD

Machine having an improved draining grid for compacting humid waste

The machine (4) having an improved drainage grid (1) for compacting humid waste (2) comprises at least an Archimedes screw (7) which rotates internally of a containing structure (11) in which a support structure (13) is afforded for the grid (1). The drainage grid (1) comprises a perforated structure (16) shaped and connected to the fixed structure (13) in such a way as to maintain the perforated structure (16) continuously in contact with the helix (10) of the Archimedes screw (7).
Owner:WAM SPA

Nanofilm-microorganism environment-friendly toilet bowl

The invention belongs to the field of toilet bowls, and relates to nanofilm-microorganism environment-friendly toilet bowl. The toilet bowl comprises a bowl body, a defecation body, a solid-liquid separator, an excrement treatment module, a urine treatment module, a water pump and a power supply module. The nanofilm technology tending to be mature is utilized for circulating treatment of urine, separation treatment is performed on urine and excrement in the use process, deodorization of excrement is enhanced, the maximum effectiveness of fertilizer is guaranteed by adding microorganisms, and power supply of the whole device is realized through a built-in power supply module without an external power source; the technical scheme of circulating water is adopted, flushing of the toilet bowl is realized through treatment of urine and storage of treated clean water, and no external water source is needed; a drying tube and an Archimedes screw are adopted for drying excrement, vacuum packingand sealing are performed on particle matter, and no external sewer is needed; the whole toilet bowl is of an integrated structure, and the placement position of the toilet bowl is not limited by thegeographical environment.
Owner:重庆市伟凡环保科技有限公司

Path generation method for treating aspheric surface in gasbag polishing way

The application discloses a path generation method for treating an aspheric surface in a gasbag polishing way. The path generation method comprises the following steps: establishing a contact model ofa polishing tool and an aspheric surface workpiece; generating a spiral curve formed by sequentially connecting a plurality of polishing paths according to a searching point by point algorithm; and adjusting the distance on the polishing path in the radial direction through the contact model. Based on the polishing path generated according to Archimedes screw, physical and uniform covering of thesurface of the workpiece is realized on the aspheric surface.
Owner:SUZHOU UNIV

A nanomembrane environment-friendly toilet bowl

The invention belongs to the field of toilets, and relates to nanomembrane environment-friendly toilet bowl. The nanomembrane environment-friendly toilet bowl includes a barrel, a toilet body, a solid-liquid separator, a fecal disposal module, a urine processing module, a water pump and a power supply module. The urine was recycled by using the mature nano-membrane technology, and separating the urine and the feces in the use process, strengthening the deodorization and sterilization of the urine, ensuring that the toilet bowl can be normally used under the environment of no external power supply and no water, and realizing the power supply of the whole device through the built-in power supply module without external power supply; Adopting the technical scheme of circulating water, the toilet can be flushed by treating the urine several times and storing the treated clean water without external water source; The drying pipe and Archimedes screw are used to dry the excrement, and the particulate matter is vacuum packed and sealed without external sewer. The whole invention is an integral structure, and the placement of the toilet bowl is not limited by the geographical environment.
Owner:重庆市伟凡环保科技有限公司
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