134 results about "Body of revolution" patented technology

A centrifugal force-based microfluidic device for the detection of a target biomolecule and a microfluidic system including the same are provided. The device includes a body of revolution; a microfluidic structure disposed in the body of revolution including chambers, channels connecting the chambers, and valves disposed in the channels to control fluid flow, the microfluidic structures transmitting fluid using centrifugal force due to rotation of the body of revolution; and beads disposed in the microfluidic structures, the beads having capture probes on the surfaces thereof which are selectively bonded with target protein; and a detection probe disposed in the microfluidic structures and selectively bonded to the target protein, and which includes a material required to express an optical signal, wherein the microfluidic structure mixes the beads, biological samples, and the detection probe to react and washes and separates the beads after the reaction.

A centrifugal force-based microfluidic device for nucleic acid extraction and a microfluidic system are provided. The microfluidic device includes a body of revolution; a microfluidic structure disposed in the body of revolution, the microfluidic structure including a plurality of chambers, channels connecting the chambers, and valves disposed in the channels to control fluid flow, the microfluidic structure transmitting the fluid using centrifugal force due to rotation of the body of revolution; and magnetic beads contained in one of the chambers which collect a target material from a biomaterial sample flowing into the chamber, wherein the microfluidic structure washes the magnetic beads which collect the target material, and separates nucleic acid by electromagnetic wave irradiation from an external energy source to the magnetic beads. The microfluidic system includes the microfluidic device; a rotation operating unit which rotates the body of revolution; and an external energy source which irradiates electromagnetic waves.

The inventions relate to the field of medicine and can be used in endoprosthetics for restoring a lumen in narrowed sections of vessels and other hollow organs. The stent is made as a netted hollow volumetric body, formed by interweaving of several groups of windings from a single length of a thread, placed along helical spirals with opposite entry directions. A material of the thread possesses elasticity and shape memory effect. Cells which are opposite with respect to the axis of the stent, are displaced with respect to each other, and the stoat thread has different elasticity in its separate sections, preserving the same thickness of the thread along the whole length of the stent. In the second variant of the stent its geometry is changed by way of making the stent with separate areas having a different axial curvature. The third variant of the stent unites the first and the second variants of the stent. In addition to that in all three variants the stent is manufactured from a medical nitinol Ti Ni. The method of stent manufacturing includes the formation of a netted hollow metallic body from a metallic thread by interweaving its windings, wound on a mandrel made as a body of revolution with a rectlinear longitudinal axis, and a pre-deformation of the stent on the mandrel by way of its quenching from the temperature 630-660° C. into water, which attributes a maximum elasticity to this stent. After the mandrel is removed the elasticity of separate sections of the stent is reduced, subjecting them to a secondary heat treatment at the temperature of 330-550° C. during from 1 to 30 minutes. In the rest variants of the method, the pre-deformation of the stent is conducted twice, first by way of primary heat treatment of the stent on the mandrel with a rectilinear longitudinal axis at the temperature of 330-390° C. during 5-20 minutes, and then on the mandrel with a curvilinear longitudinal axis, the form of which corresponds to the form of a prostheticated vessel. By that, by changing the time and temperature of the secondary heat treatment, the elasticity of the thread in separate sections of the stent and / or axial curvature of the stent are changed.

The windmill assembly is a low drag, streamlined body of revolution that captures the kinetic energy content of the accelerated laminar air surrounding the body. The assembly includes a power-generating, wind-driven turbine that is compact, lightweight and capable of producing a substantially greater output than a conventional windmill with a comparable size rotor. The turbine includes a protruding aerodynamic nose and outer cowling that provide a streamlined, wind-collecting inlet section that constricts the incoming air stream and increases its velocity through the turbine blades. The turbine further includes an exit section designed to exhaust the air stream with a minimum of turbulence. One or more generators are coupled to a turbine wheel, and are electrically switched on and off to maximize the energy capture over the full range of ambient winds. The wind turbine assembly may be configured around a blimp-type body having counter-rotating turbine assemblies.

A vehicle light emitting device including a light emitting element, a primary reflector, and a secondary reflector. A reflecting surface of the primary reflector has a shape of a substantially dome-shaped body of revolution formed by rotating about the optical axis Ax an ellipse E which has a primary focal point F1 which is a point near the light emitting element and a secondary focal point F2 which is a point near the reflecting surface. The primary reflector includes a belt-shaped region, which straddles a ring-shaped locus of the secondary focal point F2 and is configured as a light translucent portion, whereby reflected light from the primary reflector is caused to temporarily converge on the secondary focal point F2 in each cross-section of the body of revolution including the optical axis Ax and is thereafter caused to be incident on the secondary reflector as a diffused light.

An after-body assembly for an aeroengine, the assembly including, in an axial direction, an annular part made of metallic material secured to the aeroengine and an after-body part made of ceramic matrix composite material presenting the form of a body of revolution at least in its upstream portion, the after-body part being mounted on the annular part by resiliently flexible fastener tabs, each fastener tab having a first end fastened to the annular part and a second end fastened to the upstream portion of the after-body part, wherein each fastener tab includes an axial abutment element extending radially from the second end of the tab, the axial abutment element facing the first end and a radial abutment element at the second end of the tab, the radial abutment element overlying the first end in a radial direction.

The windmill assembly is a low drag, streamlined body of revolution that captures the kinetic energy content of the accelerated laminar air surrounding the body. The assembly includes a power-generating, wind-driven turbine that is compact, lightweight and capable of producing a substantially greater output than a conventional windmill with a comparable size rotor. The turbine includes a protruding aerodynamic nose and outer cowling that provide a streamlined, wind-collecting inlet section that constricts the incoming air stream and increases its velocity through the turbine blades. The turbine further includes an exit section designed to exhaust the air stream with a minimum of turbulence. One or more generators are coupled to a turbine wheel, and are electrically switched on and off to maximize the energy capture over the full range of ambient winds. The wind turbine assembly may be configured around a blimp-type body having counter-rotating turbine assemblies.

An antenna comprises: a main reflector being a body of revolution of arbitrary curve which axis diverges from axis of the revolution; a sub-reflector being a body of the revolution of arbitrary curve along the axis of revolution, having a circle and a vertex pointing to the main reflector and being placed between the circle and the main reflector; a radiator being located along the axis of revolution and being placed between the main reflector and the sub-reflector; and wherein the main reflector and the sub-reflector are: zm⁡(r,D)=∑n=04⁢∑m=06⁢qmn,m⁢Dm-n+1⁢rn,⁢zs⁡(r,D)=∑n=04⁢∑m=06⁢qsn,m⁢Dm-n+1⁢rn,z, r are coordinates of the main reflector and the sub-reflector measured in millimeters, Index m corresponds to the main reflector, index s to the sub-reflector D is the main reflector diameter measured in millimeters.

A centrifugal force-based microfluidic device for the detection of a target biomolecule and a microfluidic system including the same are provided. The device includes a body of revolution; a microfluidic structure disposed in the body of revolution including chambers, channels connecting the chambers, and valves disposed in the channels to control fluid flow, the microfluidic structures transmitting fluid using centrifugal force due to rotation of the body of revolution; and beads disposed in the microfluidic structures, the beads having capture probes on the surfaces thereof which are selectively bonded with target protein; and a detection probe disposed in the microfluidic structures and selectively bonded to the target protein, and which includes a material required to express an optical signal, wherein the microfluidic structure mixes the beads, biological samples, and the detection probe to react and washes and separates the beads after the reaction.

The inventive breath training device comprises a respiratory tube, a low-frequency mechanical air oscillation generator provided with an oscillation chamber embodied therein and provided with an input channel which is embodied in the form of an upwardly extending saddle-shaped body of revolution, contains a spherical ball and is connected to the respiratory tube and to an output channel communicating with ambient air, wherein the respiratory tube is provided with a jacket in which the body of the low-frequency mechanical air oscillation generator rotatable about a horizontal axis is fixed and a bypass chamber provided with an inspiratory tube is formed, said inspiratory tube comprises an inspiratory valve provided with a tubular attachment and the output channel of the oscillation chamber of the low-frequency mechanical air oscillation generator is also provided with an expiratory valve.

A projectile for an air arm is integrally formed from a single piece of dense malleable material formed as a body of revolution about a longitudinal axis having a head portion dimensioned for free sliding in the bore of an air arm and a skirt-like portion of frusto-conical form. The rearward end of the skirt portion is dimensioned to be in slight interference fit with the bore and the forward end is joined with the head portion to define a reduced diameter waist. The frustum is shell-walled, having a central recess opening to the rear and extending forwardly into the head portion. The head portion has a parabolically shaped outer surface which transitions smoothly into a hyperbolically shaped outer skirt surface for aerodynamic efficiency. Vanes are formed on the head portion to enhance in-flight spiraling rotation.

In a lens-mounted light emitting unit comprising LED elements of multiple light colors, narrow-angle light distribution is enabled, and color mixing properties are improved. The lens-mounted light emitting unit 10 comprises LED elements 12 (12A to 12D) of multiple light colors placed on a base plate 11, and a lens unit 11 having a shape of a body of revolution to color-mix and emit the light from the LED elements 12. Assuming an arbitrary contact point P1 between the side incident surface 14c and the upper incident surface 14d of the lens unit 13, and that light from an LED element 12A farthest from the contact point P1 is refracted at the contact point P1 to form a light path L1 intersecting the emitting surface 14a at an intersection point P2, the emitting surface 14a inside a circle C1 formed by continuously connecting such intersection points has a diffusion angle larger than the diffusion angle of the emitting surface 14a outside the circle C1. This enables narrow-angle light distribution, and makes it possible to improve color mixing properties.

An antenna comprises: a main reflector being a body of revolution of parabolic shape; a sub-reflector being a body of the revolution of elliptic shape having a circle and a vertex oriented to the main reflector and being placed between the circle and the main reflector, one focal point of the sub-reflector being placed on the axis of revolution and the other focal point of the sub-reflector being placed out of the axis, the sub-reflector circle being placed in the plane of the main reflector edge circle; a radiator being placed along the axis of revolution of the main reflector and being placed between the main reflector and the sub-reflector; and wherein the sub-reflector has eccentricity ranging from 0.55 to 0.75

The invention relates to lighter-than-air vehicles. The inventive aircraft comprises a rigid body with carrier gas-containing shells and propulsers arranged inside aerodynamic modules which are embodied in the form of aerodynamically shaped toroidal bodies of revolution. A longitudinal through passage in embodied in the lower part of the body in such a way that it communicates a crew cabin, a cargo-and-passenger compartment, fuel tanks and accessories and is provided with exit hatches and devices for docking to external objects, an extensible stairway with fences and a demountable carriage. The aircraft also comprises a transversal passage with overwing exits and a vertical passage provided with a cable hoist and devices for lowering and lifting people and cargo. The lower part of the body and hollow wings are filled with a foamed plastic which is used for providing the aircraft with floatability and strength. The aim of the invention is to extend the list of technical means.

A projectile for an air arm is integrally formed from a single piece of dense malleable material formed as a body of revolution about a longitudinal axis having a head portion dimensioned for free sliding in the bore of an air arm and a skirt-like portion of frusto-conical form. The rearward end of the skirt portion is dimensioned to be in slight interference fit with the bore and the forward end is joined with the head portion to define a reduced diameter waist. The frustum is shell-walled, having a central recess opening to the rear and extending forwardly into the head portion. The head portion has a parabolically shaped outer surface which transitions smoothly into a hyperbolically shaped outer skirt surface for aerodynamic efficiency. Vanes are formed on the head portion to enhance in-flight spiraling rotation.

This invention relates to a body of revolution accessory electroforming processing method and device, which belongs to electroforming processing field. The character of this method as follows: in the electroforming liquid, adding hard particles; during the electroforming, making the hard particles do compound movement continuously to remove the attaching bubble and nubble of the deposition surface effectively by the friction, wherein the friction is to the electroforming surface form the hard particles; and the compound movement of the hard particles comes from two parts: one is the rotating movement of the cathode, the other is the vibrating of the cathode basket. The device of this invention is mainly includes: cathode rotating driving device, cathode basket vibrating driving device, temperature controlling device, electroforming liquid filtering cycle fluid supply system. This electroforming material produced by this invention has high quality.

A motor having improved mechanism is composed of a body of revolution having a mounting hole in the center of the body; a rotor hub having a boss section to be inserted into the mounting hole of the body of revolution and a flange section supporting the body of revolution; and an elastic plate installed coaxially to the rotor hub and pressing the body of revolution on the flange section of the rotor hub, wherein the elastic plate is provided with a plain section having a hole in the center and a plurality of arm sections extending radially from an outer circumference of the plain section, and wherein each of the arm sections is provided with a first slanting section that is inclined with respect to the plain section and a second slanting section having an angle of gradient different from that of the first slanting section, and further wherein the first slanting section contacts with an outer circumferential edge of the boss section that confronts with an inner wall surface of the mounting hole of the body of revolution and the second slanting section contacts with a top end edge of the inner wall surface of the mounting hole.

The invention relates to a parasol provided with an actuator assembly comprising a spindle having a spindle longitudinal axis and an external screw thread, and a guide for the spindle comprising a holder which extends along a portion of the spindle and which is provided with at least a first and second set of bodies of revolution which are held in the holder body so as to be able to rotate about their axis of rotation and enter into contact with the spindle, where they engage with at least one screw thread part, the second set of bodies of revolution being set apart from the first set of bodies of revolution along the spindle longitudinal axis.

A vehicle light emitting device including a light emitting element, a primary reflector, and a secondary reflector. A reflecting surface of the primary reflector has a shape of a substantially dome-shaped body of revolution formed by rotating about the optical axis Ax an ellipse E which has a primary focal point F1 which is a point near the light emitting element and a secondary focal point F2 which is a point near the reflecting surface. The primary reflector includes a belt-shaped region, which straddles a ring-shaped locus of the secondary focal point F2 and is configured as a light translucent portion, whereby reflected light from the primary reflector is caused to temporarily converge on the secondary focal point F2 in each cross-section of the body of revolution including the optical axis Ax and is thereafter caused to be incident on the secondary reflector as a diffused light.

The invention relates to a turbomachine combustion chamber including at least one ignition spark plug carried by an outer casing and extending in guide means carried by a wall of the chamber, the wall forming a body of revolution, the guide means comprising a tubular guide having the spark plug passing axially therethrough and mounted with axial and transverse clearance on a chimney fastened to the wall of the chamber and opening out into the chamber. In order to reduce wear of the spark plug in operation, the spark plug is mounted by being fastened in a sheath, the tubular guide being slidably mounted around the sheath.

The drum of the invention is generally in the form of a body of revolution about a longitudinal axis, being made of a metal alloy and extending between an upstream end and a downstream end along a curved profile capable of being circumscribed in an annular envelope extending around said longitudinal axis, said profile extending radially about a surface of revolution presenting a generatrix line, said downstream end being provided with a stiffener. In characteristic manner, said stiffener is provided with at least one composite assembly mounted on said downstream end, said composite assembly comprising fibers and a polymer matrix. The drum is preferably for use in constituting a rotor of a low pressure compressor.

The invention relates to a method and a device for displaying smoke at a high wind speed. The method comprises the following steps: (a) manufacturing and preparing the device, (b) displaying a flow field, (c) monitoring pressure, (d) recording the flow field, and (e) quantifying the flow field. The device comprises a smoke injecting device A and a flow filed recording device B, wherein the smoke injecting device comprises an air compressor, a smoke generator, a smoke injecting pipeline, a model, a smoke shunt hole, a laser and an image recording device. Firstly, laser beams with a beam diameter smaller than 5mm are emitted by an argon ion CW (Continuous Wave) laser and are transformed into sheet beams by a cylindrical lens so as to provide high-intensity irradiation for the displayed flow field, and then the image recording device controlled by a computer is adopted for automatically shooting and recording structural images of the flow field. The invention adopts advanced technologies of injecting, displaying, recording and quantifying the smoke at the high wind speed and enables the test wind speed displayed by the smoke to reach 60m / s or higher and to be continuously displayed so as to provide necessary technological means for researching the complex detouring flows with high angles of attack and the Red (Reynolds) number effects of a slender body of revolution and an aircraft.

A method of molding by injecting plastics material into a mold to make a part that is symmetrical about an axis of revolution, the part being hollow with a through passage along the axis, the part having two axial ends each defining an annular opening, the method comprising injecting the plastics material into the mold via an annular opening in an axial end of the part along an annular injection line, the plastics material containing solid particles of the flake or pearlescent type, thereby imparting flake and / or pearlescent highlights to the molded part.

Method and arrangement for providing liquid fuel rocket engine member (10). The member forms a body of revolution having an axis of revolution and a cross section that varies in diameter along said axis. The wall structure includes a plurality of cooling channels (11). The outside of the wall structure includes a continuous sheet metal wall (14). The cooling channels (11) are longitudinally attached to the inside of the sheet metal wall. The method for manufacturing the rocket engine member (10) includes the steps of forming a sheet metal wall (14) having a wall section corresponding to the desired nozzle section, providing a plurality of channel members (15), and attaching the channel members (15) to the inside of the sheet metal wall (14).

A fluid power gripper which contains a receiving space, in which two pistons are located able to be moved axially by fluid power in opposite drive directions, such pistons being kinematically coupled by a synchronization means. The synchronization means comprises first mesh means, which are provided on opposite mutually facing side surfaces of two mutually overlapping axial tails of the pistons. Furthermore the synchronization means comprises second mesh means provided on a body of revolution arranged between the two axial tails and having an axis of rotation extending athwart the longitudinal axis of the receiving space.

The present invention provides a manufacturing method for a display device according to which an unused portion can be cut out without damaging the surface having an electrode terminal. The manufacturing method is for a display device having at least one display region formed between a first substrate on which an electrode terminal is formed and a second substrate made of a resin, and has the steps of creating a scribe line on the second substrate and pasting a columnar body of revolution of which the round surface is made of an elastic body and adhesive to the outer surface of the second substrate so that the second substrate is bent as the body of revolution rolls over the second substrate, which is thus cut along the scribe line.

The device includes a connection tube in communication with a hole of a rail for fuel under pressure, the tube being provided with an end swelling. The device has a first threaded element fixed to the rail in a position corresponding to the hole and a second threaded element designed to engage the first threaded element. Removably set between the hole and the swelling is a seal element designed to form a seal both with the hole and with the swelling. The seal element is a body of revolution equipped with a passage along a pre-set axis, and includes two end noses designed to be inserted in the swelling and in the hole, respectively, and two tapered seal stretches.

A hoist for elevator which can be cooled efficiently when heat is generated by a simple arrangement. In the hoist for elevator, a body of revolution is supported rotatably through a bearing on a spindle standing from the central portion of a fixed frame, and a motor is constituted of a stator provided in the fixed fame, and a field magnet provided on the body of revolution and arranged oppositely to the stator. A heat pipe is inserted in the spindle while projecting partially to the outside of the spindle, and heat radiation fins are provided on the projecting portion. Cooling fins are provided at the side of the driving rope sheave and on the body of revolution and arranged around the heat radiation fins.

The invention provides a device for suspending slats of a bed base, the device being constituted by a one-piece unit presenting a top section having two housings for receiving the ends of two parallel slats, a bottom section provided with anchor means to anchor said unit to a bed frame, and an intermediate section connecting the top section to the bottom section and constituting the resilient suspension element, said bottom section having a vertical bottom wall for bearing against an inside face of said frame and a horizontal top wall for resting on the top face of said frame, and said unit presenting a vertical plane of symmetry perpendicular to said top wall and to said bottom wall, wherein the intermediate section is constituted by semicylindrical wall portions that are substantially bodies of revolution about axes perpendicular to the plane of symmetry, said wall portions connecting the top section to the bottom section, and said axes of revolution being disposed inside the volume defined by said top section, said bottom section, and said semicylindrical wall portions.