286 results about "Concentric cylinder" patented technology

A system and method is provided for illuminating a subject using a light pipe that transmits light from a source, such as an LED ring illuminator to an outlet that directs the light appropriately as either bright field illumination, dark field illumination or both. The light pipe can include concentric cylinders, typically with a bright field illuminator nested within a dark field illuminator. The tip of the dark field illuminator may be angled so as to internally reflect light inwardly toward the central optical axis of a camera at a low angle. The tip can be located near the focal plane of the camera for the desired field of view. The field of view of the camera sensor can be modified to reject data outside of a illumination field of a particular shape. This illumination field can be created by shaping the light pipe in a predetermined form that projects the modified illumination field. Likewise, a set of aiming illuminators (in, for example, a noticeable color) can be provided around the perimeter of the light pipe to delineate outer boundaries of the illumination field or area of interest. These approaches facilitate better aiming of the sensor into the desired area of interest so that it is illuminated and / or acquired most-fully.

A device and method for sealing a first cylinder in a fixed position inside a second concentric cylinder. The inner cylinder has an annular depression in its wall at the point of sealant placement, which causes the wall of the inner cylinder to intrude inwardly. The depression is filled with a partially compressible fluid and is covered over by a malleable / ductile sleeve. The inner cylinder is placed within the outer cylinder with the covered annular depression positioned at the desired sealing point. A cylindrical displacement device is directed through the inside of the inner cylinder where it encounters the intrusion of the annular depression. The displacement device is forced past the annular intrusion and pushes the wall outward. The partially compressible fluid is forced to expand outward under the malleable / ductile cover in a manner that intrudes into the annular space between the inner cylinder and the outer cylinder and into contact with the outer cylinder. The partially compressible fluid has a residual energy sufficient to maintain the sealing element in contact with the outer cylinder.

The improved fluidized bed reactor includes cylindrical reactor casing perpendicular to ground and phase separator in the upper part of the casing. The casing has material inlet in the bottom and product outlet on the upper side, and the phase separator consists of two, one inner and one outer, concentric cylinders of different inner diameters as well as the inner wall of the casing, with the inner cylinder having a lower top-less conic opening. The reactor is suitable mainly for the chemical reaction between different liquid and gas matters under the contact with solid particles, and has the advantages of great catalyst holding amount, high reactor utilization, simple structure, easy operation, etc.

The present invention provides for a cooling system for circulating a coolant to cool the patient bore. In one embodiment, that patient bore consists of two concentric cylinders separated by spacers running either longitudinally or helically. In another embodiment of the present invention, fluid may be passed either helically or longitudinally through tubes bonded to the outer diameter of the patient bore such that the parts of the bore that are exposed to the patient are directly cooled. In a third embodiment, the RF coil could form part of the patient bore, with the helical or longitudinal fluid channels surrounding the patient bore.

A device which is used to cool fermentation tanks and which can be used essentially in beer production, cooling and maturation, includes a vertical heat exchanger, which comprises single- or double-wall concentric cylinders and is positioned internally at the center of a tank. The length and capacity of the cylinders differ depending on the size and shape of the tank. A coolant flows through the cylinders in order to cool and to maintain a suitable temperature range. In addition, the double-wall cylinders which form the heat exchanger are interconnected by means of coolant flow and support tubes. Meanwhile, the exchanger is supported by the cone and the walls of the tank by means of tubes which are used for the passage of the coolant and the passage of signals. Moreover, the outer wall and the cone can be provided with a cooling jacket.

The invention discloses an improved three-phase fluidized layer reactor, which consists of a reactor casing body and a three-phase separator positioned at the inner upper part of the casing body, wherein, the three-phase separator is composed of the inner cylinders and outer cylinders of two concentric cylinders with different inner diameters, a float tube arranged on the outer cylinder, and the inner wall of the reactor casing body. An upper limiting apparatus and a lower limiting apparatus are arranged on the reactor casing body, and the three-phase separator is positioned between the upper limiting apparatus and the lower limiting apparatus. The reactor is mainly suitable for the chemical reaction of different kinds of liquid and gas substances under the circumstance of contacting with solid particles, and has the advantages of large catalyst inventory, high utilization rate of the reactor, and high stability of operation.

A mount for traveling within a pipe to center a tool, such as a camera, within the pipe. Inner and outer concentric cylinders are slidably nested. Pivoted leg pairs have one end connected to the outer cylinder and another end connected to the inner cylinder. The pivoted leg pairs move radially inward or outward as the inner and outer cylinder move axially with respect to each other. A spring biases wheels attached to the distal end of the pivoted leg pairs radially outward. The mount centers the inner and outer cylinder within the pipe and automatically adjusts to different diameters of pipes. The mount overcomes obstructions within the pipe and is easily retrievable. The interior of the pipe may be inspected or worked upon.

A fiber reinforced composite shaft bearing a metallic flanged end coupling attached to the outside diameter through a concentric cylindrical torsional joint is provided. The composite shaft is press fitted into a flanged metallic end coupling including a multiplicity of teeth running parallel to the tube axis which cut longitudinal channels into the outside diameter of the composite shaft wall during the press fit process. Pairs of inverted troughs adjacent to and running parallel to the cutting teeth in the serrated region allow space for the redistribution of the composite material and debris formed during the press fitting process. This combined action forms a mechanical interface capable of supporting torsional and axial stresses. A structural adhesive may be applied to the joint region to form a secondary joint. In this case the composite formed between the cutting debris and the adhesive fills the trough channels.

A coiled bio-medical device has a base layer coiled to form a plurality of concentric cylinders. The base layer comprises an inner surface. The coiled bio-medical includes a bio-sensor arranged on the inner surface of the base layer. The bio-sensor is adapted to collect bio-medical data from an organism. A transmitter is arranged on the inner surface of the base layer and is adapted to transmit the collected bio-medical data.

The invention discloses an air-assisted electro-coagulation algae water separation device and a using method thereof, and belongs to the technical field of sewage treatment. The device comprises a tower, a main shaft, concentric cylinder electrode plates, a mechanical transmission device, a connecting rod mechanism, a floating ball device, an air distributor, a pulse air feeding device and the like. The device takes even pairs of concentric cylinders as cathode and anode for electro-coagulation which are distributed in a staggering way; the surface area of the electrode plate is large, the electro-coagulation efficiency is high, and the adsorption precipitation of microalgae on the surface of the electrode can be effectively prevented. The flowing direction of the liquid in the tower is opposite to the settlement direction of the microalgae so as to form cross flow to enhance the mass transfer and improve the electro-coagulation efficiency. The floating ball device can keep the moving components such as the main shaft in the tower, the concentric cylindrical electrode plates of the cathode and anode and the like in a floating state so as to reduce the running load of a transmission motor. The device of the invention can realize continuous operation of electro-coagulation and air floatation collection of the microalgae; and the basic structure is easy to amplify and implement so as to meet the requirements of large-scale industrial continuous running.

A composite wick for delivering two liquids with different properties to a surface includes a first section provided for delivering a first liquid to the surface of the wick and a second section provided for delivering a second liquid to the surface of the wick. Preferably, the first section is made of hydrophobic materials and the second section is made of hydrophilic materials. Also, a composite wick includes a first section made of either a porous ceramic-based material or a porous sand-based material and a second section made of a porous plastic material, wherein the first and second section preferably are formed as concentric cylinders, with the first section being disposed within the second section.

The invention relates to a clarifying chamber-free continuous extracting device of a large-phase ratio easy emulsifying system and an operating method, which belong to the technical field of chemical liquid-liquid solvent extraction. The device comprises a tower body, a liquid phase disperser, a main shaft, a lifting mechanism, a motor, and the like, wherein the liquid phase disperser comprises a series of hollow concentric cylinders, and spiral type flow guide plates are arranged on the inner walls of the cylinders; and the liquid phase disperser can be used for uniformly dispersing one liquid phase in the other liquid phase by tiny particles at lower rotating speed. Because the shearing force is small when the liquid phase disperser rotates and is difficult to cause the larger turbulence of two phases of liquid flow, phenomena of unbalanced shearing force and easy emulsifying generation in the stirring process of a common stirrer are effectively avoided. The two-phase clarifying speed is high, and the phase continuity is easy for control. The spiral type flow guide plates can assist the self-absorbing type stirring and pumping process, and solves the problems of difficult full dispersion of a small-volume liquid phase and difficult large-phase ratio operation of the traditional stirring way. The device has simple structure, easy amplification and multistage series connection and realizes continuous countercurrent extracting operation.

The invention discloses an autotrophic denitrification based integrated novel denitrification reaction device and a technological process thereof, belonging to the technical field of water pollution control. The device comprises a reactor main body, a water feeding system, a water draining system, a sludge removal system, and an aeration and oxygen-limiting system, wherein the reactor main body is concentric cylinder-shaped, an inner ring is an aerobic reaction area, an outer ring is a middle precipitation area and an autotrophic denitrification area, and the inner side walls of the middle precipitation area and the autotrophic denitrification area of the outer ring are the outer side wall of the aerobic reaction area of the inner ring; a porous carrier bearing plate is arranged in the aerobic reaction area, and an organic biofilm carrier is filled in the porous carrier bearing plate; and a porous carrier bearing plate is arranged in the autotrophic denitrification area, and a micro-electrolysis carrier is filled in the porous carrier bearing plate. According to the invention, when the carbon nitrogen ratio of sewage is relatively low, an organic carbon source is not required to be additionally added, so that compared with traditional autotrophic denitrification based denitrification processes, the device disclosed by the invention can control the concentration of organic matters in drained water better, and can be used for saving the operating cost produced by the addition of the organic carbon source.

The invention discloses a safty used non- rope electric appliance connector, which includes upper place and down place, the upper place includes the upper place shell, the newel give electricity terminal and two concentric cylinder shape give electricity terminal, the down place includes the down place shell,the electric link place, the rolling slide bushing, two electric conductors, the give electric insert reed, backspring; there is two ring grooves on the electric link place, the two electric conductors installed in the two ring grooves of the elelctric link place, the guide post set in the middle of the elelctric link place, in the middle of the guide post set a hole, the rolling slide bushing in the down shell, and not only fluctuate slide and also can rolling by axes, the backspring set between the rolling slide bushing and the electric link place, the two give electricity contacts set on the rolling slide bushing and separately correspond with the two electric conductors.

The invention relates to the technical field of electrolytic reaction, in particular to a continuously-operated supergravity multistage concentric cylinder type electrolytic reaction device and a process thereof, which solve the problem that the traditional supergravity electrolytic reaction device is only applicable for small-batch gap operation. The device comprises an insulated shell, a cathode disc provided with a cylinder cathode and an anode disk provided with a cylinder anode, wherein the cylinder anode and the cylinder cathode are concentrically and alternately arrayed; the cathode disk stands relative to the shell; and the center of the anode disk is connected with a rotating shaft capable of rotating at high speed. The process comprises the following steps that: electrolyte enters the center of the reaction device from a liquid phase inlet; liquid passes through various stages of cylinder type electrolytic baths formed by alternately arraying the cylinder anode and the cylinder cathode in sequence from the center along the radial direction; and the liquid is collected by the shell of the electrolytic reaction device and flows out from a liquid phase outlet. The invention has the benefits of continuously electrolyzing and being the continuously-operated supergravity multistage electrolytic reaction device and the process thereof which are suitable for industrial application.

The present invention provides a cooling system for circulating a coolant to cool a patient bore (140). In one embodiment, the patient bore (140) comprises two concentric cylinders (131, 132) separated by a longitudinally or helically laid partition (133). In another embodiment of the invention, the fluid may be delivered helically or longitudinally along the tube (232) joined to the outer diameter of the patient's bore (240), such that those portions of the bore facing the patient are cooled directly. In a third embodiment, RF coil (330) may form part of patient bore (340), while helical or longitudinal fluid channel 332 surrounds patient bore (340).

The invention relates to an improvement of phase-change memory single device structure, the invention is characterized in that above round bottom electrode, the effective control of transporting down the heat energy of heating phase-change material is implemented, through a certain thickness concentric cylinder dielectric layer, on the one hand, the invention protects well CMOS-circuit which composes the lower punch section of PCRAM-chip from impact of larger heat energy and carrier, on the other hand the invention decreases the direct contact area between the phase-change material and bottom electrode, and also obtains good insulation effect, and the dielectric layer and small phase-change region can enclose cover the bottom electrode, and implements the rest process easily, and the interface of top electrode and the phase-change material also can use the same design method of cylinder-shaped, thus symmetric up and lower structure and electrode causes electric field uniform, then the uniform electric field causes thermal field uniform, the uniform thermal field is in favor of implementing low-voltage, low-power and high-speed storage, and considers integration with the CMOS technology.

The present invention is a multidisk shell and wad for use in a multidisk shell. The wad consists of a wad base, a cushioning section attached at a first end to a top section of the wad base, and at least three alignment arms attached to a second end of the cushioning section. The cushioning section is interposed between the projectile mass and the wad base. The preferred cushioning section comprises a hollow outer cylinder and at least one inner cylinder of polymeric plastic material. Thus, there are at least two concentric cylinders providing the cushioning between the disks and the expanding propellant charge. These at least two concentric cylinders and are attached at first ends to the top side of the wad base. The wad has at least three spatially separated alignment arms having proximal ends and distal ends for maintaining the alignment of projectiles as they travel through the gun barrel. The maintenance of projectile alignment is helpful in reducing the scatter of the projectiles after they exit the gun. The at least three alignment arms are typically attached at the proximal ends to a second end of the cushioning section. The geometry of the at least three alignment arms is useful in the maintenance of the alignment of the projectile under acceleration. A preferred embodiment is a totally symmetrical configuration. Thus when the wad contains three alignment arms the arms are spaced at regular intervals of 120 degrees; four alignment arms are separated by 90 degrees; etc.

A method and apparatus for operating a DC plasma torch. The power supply used is at least two times the average operating voltage used, resulting in a more stable operation of the torch. The torch can include two concentric cylinder electrodes, the electrodes can be graphite, and the plasma forming gas can be hydrogen. The power supply provided also has the capability of igniting the torch at a pulse voltage of at least 20 kilovolts.

A microwave sensor used for steam humidity detection belongs to the technical field of testing and is used to solve the problem of steam humidity detection. The technical solution is that it includes a cylindrical cavity with openings at both ends and a microwave signal transmission interface in the middle, and a ring divider is respectively arranged at both ends of the cylindrical cavity, and the ring divider is composed of It consists of 1 to 4 cylinders coaxial with the cylindrical cavity, one end of which is close to the port of the cylindrical cavity is connected with the cylindrical cavity, and the expansion coefficient of the ring separator is larger than that of the cylindrical cavity. The invention has the advantages of simple structure, convenient use and low requirements on the environment, and can realize high-precision online measurement of the humidity of flowing wet steam by cooperating with the microwave signal processing circuit.

The invention provides a radiating rib direct driving permanent magnet synchronous single bearing anemo-electric generator, comprising an end sheet (1), a frame (2), a stator (3), a rotor (5) and an end closure (6), wherein, the frame (2) is connected with the end sheet (1), the stator (3) is fixed inside the frame (2). The invention is characterized in that the outside circumference of the frame (2) is provided with a radiating rib (4), both the stator (3) and the rotor (5) consist of two concentric cylinders, the two corresponding surfaces are respectively provided with a winding and a permanent magnet, the rotor (5) which rotates corresponding to the stator (3) is closely fixed on the outer lane of a bearing (8), the inner lane of the bearing (8) is connected with a taper support (7) which is connected with the end sheet (1), the lateral surface of the bearing (8) positioned on the blower hub side is connected with an arrester (9). The invention has simple and compact structure, good radiating effect, high efficiency and convenient transportation and installation.

The invention discloses a reaction device for producing organic acid and alcohol through synthesis gas fermentation, comprising a main body reactor and an external gas cycle system which is connected with the main body reactor and cycles the gas generated in the main body reactor, wherein the main body reactor comprises a reactor pot body and a guide cylinder which is arranged in the reactor pot body, is fixed by a support and is a concentric cylinder of the reactor pot body; a blade type blender is arranged along the axis of the guide cylinder, the end, with a blending blade, of the blender is arranged close to the bottom end of the guide cylinder and the other end of the blender is connected with a drive motor; a vent pipe of a gas distributor stretches into the position between the bottom in the guide cylinder and the lower part of the blending blade, and the other end of the gas distributor is communicated with a gas input pipeline by stretching out of the guide cylinder. A cycle gas circuit and a normal gas supply gas circuit are alternately used in the external gas cycle system. The reaction device of the invention has the advantage of simple structure and operation, can obtain good gas-liquid mass transfer without high blending power and ventilation volume, can not only realize continuous gas supply but also realize gas cycle utilization, and greatly improves the use ratio of the gas substrate.

The invention relates to a bearing sealing device, in particular to a bearing sealing device used for various centrifugal slurry pumps or other rotation equipment such as pumps and motors, etc. The bearing sealing device comprises an end cover and a bearing positioning sleeve and is characterized in that the external cylindrical surface of the bearing positioning sleeve is provided with a step-shaped concentric cylindrical surface; at least one concentric cylindrical surface is provided with a maze; the end cover is provided with a step-shaped concentric internal cylinder surface which is matched with the bearing positioning sleeve. By adopting the bearing sealing device, the sealing elements are few, the installation is convenient and quick; the sealing elements have no contacts, no friction or sliding phenomena, thus not being damageable parts; furthermore, the bearing sealing device also has active pollution intervention function, large freedom of material selection and low cost.

The subject invention pertains to a method and apparatus for manufacturing a plastic optical transmission medium. The subject invention also relates to materials for use in producing plastic optical transmission medium. The subject method can allow continuous high-speed production while controlling the refractive index profile, step or graded, of the optical transmission medium. In a specific embodiment, the medium POTM can have high optical transmission, and be able to operate in conditions up to 125° C. at 95% R.H. In a specific embodiment of the subject invention, two or more concentric cylinders of transparent polymer melts, of which at least one is a cross-linkable material, can be utilized to produce a plastic optical transmission medium. In addition, zero, one, or more transparent, nonreactive, low molecular weight diffusible additive(s) can be added to zero, one, or more of the transparent polymer melts to provide a graded refractive index profile. The molecular weights and chemical structures of the index modifying additives can be chosen to ensure their diffusion constants are low enough to provide a stable refractive index profile at the desired operating temperature of the fiber. The cylinders of melt can be extruded into a solidified polymeric tube via, for example, a cross-head type of die. The tube containing the melt materials can be maintained at high temperature for a specific time period, such that the cross-linking can occur and, optionally, the additives can diffuse within the polymeric tube.

The invention discloses a superconducting magnet assembly for magnetic resonance imaging. The superconducting magnet assembly comprises a coil former, a plurality of coils arranged on the coil former, a cryostat for holding the coil former and the coils; the cryostat is assembled from a plurality of layers of concentric cylinder cavity; a first type coil slot and a second type coil slot are arranged at the axial end close to the coil former, the distance between the first type coil slot and the coil former axis is different from the distance between the second type coil slot and the coil former axis and at least one type of the coil slot is of an open structure in axial direction. The invention further discloses a superconducting magnet assembly manufacturing method. The superconducting magnet assembly is capable of shortening the length of the magnet and reducing the production and manufacturing cost.