86results about How to "Small cross-sectional size" patented technology

The receptacle transfer installation comprises an upstream transport starwheel adapted to support the receptacles via their collars, a first downstream transport starwheel, a second downstream transport starwheel. An upstream guide extends as far as the first downstream transport starwheel, and a fixed downstream guide having a first branch extending around a portion of the first downstream transport starwheel and a second branch extending around a portion of the upstream transport starwheel between the two downstream transport starwheels. A deflector member is mounted to move between a first position in which the deflector member extends the first branch of the downstream guide and a second position in which the deflector member connects the upstream guide to the second branch of the downstream guide.

A capacitive sensor array includes a sensor electrode, a shielding electrode and a background electrode which are surrounded by insulator materials and connected to a control and evaluation circuit. Using the sensor electrode that extends along a first coordinate line, the entry of an object into a space ahead of the sensor electrode is detected. The control and evaluation circuit detects a capacity change of the sensor electrode as compared to a reference potential. The shielding electrode is connected to the sensor electrode via the control and evaluation circuit in such a manner that its potential follows. The three electrodes are arranged behind each other along a second coordinate line that is perpendicular to the first coordinate line. The insulating materials are arrayed between the sensor electrode and the detection zone. The central axis of the cylinder lies within the plane that is formed by the first and second coordinate lines. The insulator materials between the detection zone and the sensor electrode include at least one plastic layer that directly surrounds the sensor electrode and a plastic layer that is arrayed at a specified distance. The insulator materials are arranged so that the relative dielectricity constant initially assumes a relatively high value of the surrounding plastic layer as the distance from the sensor electrode increases, then drops to a value that approaches the value of 1, and then again rises to a relatively high value of the outer plastic layer.

A stent / graft assembly includes a tubular graft having an upstream end, a downstream end and a tubular passage between the ends. The assembly also includes a tubular stent having an upstream end, a downstream end and a tubular passage. The upstream end of the tubular graft is affixed in substantially end-to-end relationship with the downstream end of the tubular stent. The affixation may employ sutures, bonding, hooks or the like. The end-to-end connection may also require a slight overlapping to ensure an adequate affixation. The end-to-end disposition of the tubular graft and tubular stent reduces the cross-sectional profile of the stent / graft assembly. One or more wires may extend from the tubular stent through the tubular graft for anchoring near the downstream end of the tubular graft. The wire prevents axial collapsing of the tubular graft and provide radial support for the tubular graft.

A carrier fluid and an added input fluid are mixed together in a static mixer to create an emulsified output fluid mixture. The static mixer comprises a plurality of mixing chambers whose cross-sectional size expand considerably relative to an inlet, a series of bent and curved baffle plates which divert, rotate, divide, reverse and otherwise create turbulence in the combined flow, and inlet chamber in which the added input fluid is dispensed upstream into the carrier fluid, and a number of other structural mixing elements which, through turbulence, abrupt pressure drops and velocity changes, subdivide the added input mixture into very small volumetric quantities evenly dispersed within the carrier fluid to create a homogeneous output fluid mixture.

Calibration and reference samples with reduced cross-sectional areas encased within imaging tables or couch pads have low attenuation properties and provide patient comfort. The samples are stable and provide reproducible images without artifacts. The torso-length samples avoid positioning errors and misalignment. Sample density or mass calibration materials include calcium compounds representative of bone and calcifications, iodine compounds for contrast angiography, gadolinium compounds for MRI, and fat and tissue equivalent materials. Density corrections for variable patient scatter and imperfect image reconstructions improve quantitative measurement. Automated computer methods detect the samples and record readings on all images over the extent of the scans without operator interaction. Spatial references function as location references and enable spatial correction of device imperfections such as point spread function (PSF) or motion for improved images. Comparative analysis of backward and forward projections corrects images based on simultaneous imaging of the references of known properties.

A subassembly for a video endoscope with a picture-recording sensor (9) which is electrically conductively arranged on a flexible circuit board (8) which next to the sensor (9) is bent at least at one side and is conductively connected to at least one electrical cable proximally of the sensor (9).

A zigzag slow-wave line of double ridged waveguide belongs to the technical field of microwave vacuum electron and relates to a traveling-wave tube amplifier. A slow-wave structure is formed by periodically bending the double ridged waveguide (4) along the electric field to form a right-angled zigzag line or a U-shaped zigzag line; circular through holes are arranged at the positions along the mean axis symmetric line (2) of the slow-wave structure on the waveguide wall; and the slow-wave lines are connected by the metal tubes (3) with the aperture the same with that of the circular through holes between two circular through holes of the right-angled groove or U-shaped groove in each zigzag periodic structure of the slow-wave structure to form an electron stream channel. Compared with conventional zigzag slow-wave line of waveguide, the slow-wave line has lower cut-off frequency, wider pass band range and flatter dispersion characteristics. In addition, in the event that the dispersion characteristics are approximate, the zigzag slow-wave line of double ridged waveguide has smaller cross-sectional dimension to well ensure the transfer characteristics of electron stream in traveling wave tube under the action of the same focusing magnetic field, so as to improve the integral output power and grain of the traveling wave tube.

Robust ceramic igniters are provided that include an improved sealing system which can significantly enhance operational life of the igniter. Preferred igniters comprise a conductive cold zone and hot zone with higher resisitivity. A hermetic sealant material covers one or more electrical connections on the of each cold zone, thus shielding the electrical connections from environmental exposure, and thereby avoiding igniter failure resulting from electrical shorts and / or undesired oxidation.

A stent / graft assembly includes a tubular graft connected in substantially end-to-end relationship with a generally tubular stent. Free ends of the stent and graft extend in opposite directions from the end-to-end connection during a pre-deployment orientation of the assembly. However, the graft is inverted during deployment so that free ends of the graft and the stent extend in substantially the same direction from the end-to-end connection in a post-deployment orientation. Thus, at least a portion of the stent is disposed within at least a portion of the graft in a post-deployment orientation of the assembly.

The invention discloses a bidirectional overrunning clutch, a speed control device and an automatic speed control system. The bidirectional overrunning clutch comprises a disc-shaped driving part, wherein the disc-shaped driving part can rotatably sleeve a shaft-shaped driven part; a spiral spline sleeve is in spiral spline fit with a journal of the driving part, and a braking device which is used for applying frictional resistance to the spiral spline sleeve is connected to the spiral spline sleeve; a first end surface engagement clutch structure and a second end surface engagement clutch structure are formed between the spiral spline sleeve and the driven part, and the first end surface engagement clutch structure and the second end surface engagement clutch structure are respectively used only for the spiral spline sleeve to drive the driven part to synchronously rotate clockwise and anticlockwise; a bidirectional clutch structure is formed between high and low-speed driven gears of the speed control device and the automatic speed control system. The bidirectional overrunning clutch has the beneficial effects of small cross-sectional dimension, convenience in application, high mechanical efficiency, strong loading capability and long service life; two-gear automatic transmission and reverse output can be realized by the speed control device.

A retrieval catheter (30) for retrieving from a bodily lumen a device (48) attached to the distal end of a pull line (16), the catheter having a wall (32) that defines a catheter lumen (22) and a distal tip (36) that is tapered towards an open distal orifice (38) that defines the distal end of the lumen, the wall over the length of said tapered tip being distensible to allow the orifice to expand, the catheter having: a distender within the lumen that can be urged distally along the lumen such that the distender presses radially outwardly the catheter wall within the distal tip, so as to distend said orifice; the distender having a distal end annulus and a proximal end annulus (42) separated by a radially outward-facing circumferential wall and an axial lumen extending through the distender between said distal and proximal annuli; a pusher shaft (46) that extends from the distender proximally along the catheter lumen to proximally beyond the proximal end of the catheter lumen and that is arranged to push the distender distally until the distal end annulus is distal of the catheter distal orifice and the open distal orifice of the catheter is distended; whereby, with said pull line extending from the device to be retrieved through the lumen of the distender and the lumen of the catheter, the device can be pulled proximally by the pull line relative to the catheter until at least the most proximal part of the device slides over the distal end annulus of the distender into the lumen of the distender.

The invention belongs to the technical field of microwaves and relates to a broadband circularly-polarized antenna for a handheld through-wall radar. The broadband circularly-polarized antenna sequentially comprises a radome 1, an upper patch layer 2, a PMI foam layer 3, a lower patch layer 4, a first dielectric layer 5, a coupling slot layer 6, a second dielectric layer 7, a feed microstrip 8 anda metal back cavity 9 from top to bottom, wherein a hollowed-out slot 61 is formed in the coupling slot layer 6; the shape of the feed microstrip 8 is a combined shape of a rectangle and a sector; and the metal back cavity 9 is a rectangular cavity with an open surface at one end and the open surface is toward the feed microstrip. According to the broadband circularly-polarized antenna, the technologies, such as slot-coupling feeding, a low-dielectric constant layer, laminated microstrip-coupled patches and a reflecting back cavity are comprehensively adopted, so that the antenna reaches theimpedance and beam bandwidth of over 30% under low profile requirements. The target of double-patch coupling resonance is achieved through tuning the transverse dimensions of upper and lower patches,and circular polarization is achieved by adopting the cutting angle design of the rectangular patches.

A tent, such as a collapsible canopy, having removable awning structures. In some embodiments, the awning structure includes a detachable connection member, an awning tube coupled to the connection member and an awning fabric or other suitable awning body. The awning cloth can be fixed on the awning tube, such as extending between a pair of awning tubes. When the intensity or direction of the outdoor environment light / precipitation changes, the removable awning structures may be deployed as desired to increase or adjust the shade area according in the desired direction to flexibly meet shade or storm requirements.

The invention relates to a spring contact pin arrangement having a spring contact pin that comprises a pin housing in which a contact element is mounted so as to be longitudinally displaceable and is loaded by a spring device acting opposite to a displacement direction, wherein the contact element is connected to at least one first interface of the spring contact pin arrangement and protrudes from the pin housing with a contact region for electrical contacting of an electric test item. According to the invention the spring contact pin arrangement comprises a position sensor, wherein the contact element, in order to transfer the stroke thereof, is connected to a displaceable sensor element of the position sensor detecting the stroke position of the contact element.

The method provides for arranging a pick-up member for the tubular knitted article (M) coaxially with the needle cylinder, when knitting has been completed. The pick-up member (23) is provided with a plurality of pick-up hooks (25A, 25B) arranged according to a circular ring subdivided into two circular half-rings that can be overturned over each other. The tubular article is engaged by the pick-up hooks while the stitches of the last course of the knitted article are still held by the needles (5) of the knitting machine. The stitches of the last curse are then removed from the needles and the tubular article is removed from the needle cylinder (3) by means of the pick-up member (23). The two half-rings of pick-up hooks are overturned one onto the other, putting one of two opposite edges of the toe of the tubular article onto the other. The two edges are then sewn or linked.

Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out through the substrate and replacing the removed fluid with an alternate fluid, or by displacing the fluid in part with additional fluid. In another aspect, microfluidic substrates have channels which varying in cross-sectional dimension so that capillary action spreads a fluid only within a limited portion of the channel network. In yet another aspect, the introduction ports may include a multiplicity of very small channels leading from the port to a fluid channel, so as to filter out particles or other contaminants which might otherwise block the channel at the junction between the channel and the introduction port.

The invention discloses a raking prop structure used for a natural draft cooling tower and a construction method of the raking prop structure. The raking prop structure includes a raking prop structure body which is formed by mutually connecting a plurality of prop house racks to be in an annular structure. The prop house racks are in a steel tube-concrete combination structure composed of steel tubes and concrete with which the steel tubes are filled. The prop house racks comprise ring beams, pier columns and props, wherein the ring beams are connected with the top ends of the props, and bottom ends of the props are connected with the pier columns; the props are X-type props or V-type props. The construction method comprises the steps that concrete in raking props and concrete in the ring beams of the steel tube-concrete combination structure are injected from the bottom, one-off or staged lift-up method pouring is adopted, and the segmented ring beams are assembled through welding to form an integrated ring beam. The raking prop structure has the advantages that the cross-sectional dimension of each raking prop is small, the structural ductility is good, the construction speed is high, service life is long, the construction cost of the whole tower is low, post-maintenance is easy, and the maintenance cost is low.

A liquid droplet ejecting unit is disclosed wherein plural liquid droplet ejecting sub-units are provided which are arrayed in a direction substantially perpendicular to a conveying direction of a recording medium. Further, plural valves are provided which connect the respective liquid droplet ejecting sub-units and a liquid feed path. The valves comprise a valve body having an inlet port and an outlet port, and a floating member. The floating member is larger in radius than the inlet port and smaller in radius than the outlet port and has a lower specific gravity that the liquid. Thus, the floating member is floated in the liquid in the valve body and capable of closing the inlet port. An image forming apparatus using such a liquid droplet ejecting unit is also disclosed.

A shot blasting rust removal device for buoy accessories comprises a rack, a shot blast cleaning chamber, a blast wheel assembly, a shot-sand distributing system, a lifting hook system, a dust removal system and an electrical control system. The shot blasting rust removal device for buoy accessories is structurally characterized in that the shot-sand distributing system for shot-sand distributing and supplying is borne on the top layer of the rack, the shot blast cleaning chamber is located below the shot-sand distributing system, an outlet of the shot-sand distributing system is connected with an inlet of the blast wheel assembly for carrying out shot blasting work treatment, an inlet of the shot-sand distributing system communicates with a pipeline extending downwards, and a shot-sand conveyor for sucking materials from the outside is arranged at the tail end of the pipeline. The shot blasting rust removal device for buoy accessories has the characteristics of being high in automation degree, capable of achieving pipeline operation, high in production efficiency, good in rust removal quality, low in cost and little in environment pollution.

The invention provides a space bearing type modular mechanical arm joint. A bearing connection mechanism is fixedly connected with a fixed bearing mechanism which is connected with a rotary bearing mechanism through a harmonic reducer and a cross roller bearing, one end of a servo motor is connected with an incremental encoder, the other end of the servo motor is connected with a planetary speed reduction mechanism which is connected with the harmonic reducer through a bevel gear, the cross roller bearing is connected with the rotary bearing mechanism through an output shaft, an absolute encoder is fixedly connected onto the output shaft, and an EtherCAT bus driver is connected with the servo motor and performs servo control on the servo motor. The invention further discloses a modular space bearing type modular mechanical arm joint which includes a plurality of space bearing type modular mechanical arm joints which are combined together. The modular space bearing type modular mechanical arm joint is applicable to the maintenance environment with small inlets of magnetic confinement fusion (MCF) devices, long distance and large rotation space, and has the advantages of being light, compact in structure, large in bearing capacity, convenience in wiring, good in real-time communication and the like.

A method for forming a conductive plug on the surface of an MTJ includes providing a substrate, forming interconnected metal layers at the bottom of the substrate, and forming the MTJ on the surface of the interconnected metal layers; forming a barrier layer on the surfaces of the substrate and the MTJ; forming a medium layer on the surface of the barrier layer, and performing imaging etching on the medium layer to form a first through hole penetrating through the medium layer, wherein the surface size of a first barrier layer on the surface of the MTJ is larger than the size of the first through hole; forming a polymer on the side wall surface of the first through hole, taking the polymer as a mask to perform etching to form a second through hole; and removing the polymer, and forming the conductive plug in the second through hole which the polymer is removed from. Short circuit or breakdown between the conductive plug and conducting materials under the MTJ can be avoided due to the fact that the surface size of the first barrier layer on the surface of the MTJ is larger than the size of the later-formed first through hole.

A slim linear LED lighting device is provided, including: a printed circuit board on which a connecting circuit is provided, at least one power input component, and a plurality of LED Bars. The LED Bar is formed by a plurality of the same kind of LED chips, and has a slim strip-shaped condensing lens structure integrally formed in the LED Bar packaging process by molding process to control the beam angle of the LED Bar and therefore the light distribution of the slim linear LED lighting device. The LED Bar's condensing lens has a small cross-sectional dimension; therefore the effective utilization factor of the light is improved as the slim linear LED lighting device is applied to a linear automotive lamp designed with a thin light blade structure.

The invention discloses a multifrequency base station antenna and low frequency radiation units thereof, and each of the low frequency radiation units includes at least one radiation arm and a feedingBalun supporting and feeding the radiation arms, each of the radiation arms includes a first end connected with the feeding Balun and a second end connected with the first end and away from the feeding Balun, the second end sinks to from an enclosing cavity lower than a radiation surface of the low frequency radiation unit, and the enclosing cavity is used for arranging high frequency radiation units. The radiation arms of the low frequency radiation unit sink to form the enclosing cavity used for placing the high frequency radiation units, and thus the cross section size of the multifrequency base station antenna can be greatly reduced on the basis of not influencing a radiation characteristic of the multifrequency base station antenna.