235 results about "Circular loop" patented technology

A flexible RF device (1) can be deployed through a flexible endoscope. An electrode structure has a central electrode (12) and outer electrode (11). Flexible electrodes (30), circular electrodes (51, 53) and circular loop assemblies (55, 56) with different diameters are also disclosed, as well a tweezer electrodes (41) with pads (43) for increasing contact area. Retractable electrodes (100) are also disclosed.

A surgical instrument that creates a circular cut 42 of almost any diameter in the lens capsule 50 of the eye, yet its entire diameter is less than 1 mm when inserted into the eye. A cutting edge 14 is affixed to the distal tip of a super-elastic rod 11 with its distal end formed into a circular loop. The circular loop is first retracted inside of an outer tube member 12, and then the tube 12 is inserted into the eye. The loop is then expelled from the tube 12, allowing the loop to reform inside of the eye. As the loop is retracted back into the tube 12, the cutting edge 14 follows the circular path of the loop, cutting a circular opening (a capsulorrhexis) 42, into the lens capsule 50.

A capsule medical system is provided that accurately detects the location at which biological information, such as an image captured in a living body, is acquired. A circular loop antenna 23 incorporated in an endoscopic capsule traveling in a living body transmits a high-frequency signal and a plurality of antennas 11a to 11i disposed on a body surface of the living body receives the signal. A CPU 36 defines the initial location and orientation of the antenna 23. The CPU then performs an estimation process on the initial location and orientation so as to compute new estimated location and orientation and update the initial location and orientation to the new location and orientation. The CPU similarly performs the estimation process on the updated location and orientation. The CPU performs accurate location estimation by repeatedly performing the estimation process until the amount of shift of the location computed and updated by the estimation process reaches a sufficiently small value.

The invention provides an annular loop closed metal ring antenna. The annular loop closed metal ring antenna comprises a feed wire and a closed meal ring side frame; the feed wire is electrically connected with a circuit board through a feed point and electrically connected with the closed metal side frame through a connecting point; two side edges of the closed metal ring side frame are respectively electrically connected to reference ground at the corresponding side edge of the circuit board through a first grounding point and a second grounding point; the fed wire, the closed metal ring side frame and the circuit board form first and second clearance areas; each of the first and second clearance areas comprises clearances which are formed between two side edges of the circuit board and the corresponding side edge of the closed metal ring side frame; the feed point enters the first and second clearance areas of the first and second grounding points through the connecting point to form first and second annular loops which have different resonance length. Compared with the traditional antenna, the antenna has the advantages that the bandwidth is expanded, the performance is improved, and the bandwidth design is highly flexible to adjust.

The invention discloses a special clamp for abrasive flow polishing of a narrow flow passage closed impeller flow passage. The special clamp comprises an upper mold, a lower mold, a floating lock and a gasket support plate, wherein the upper mold and the lower mold form a cylindrical cavity; the inner diameter of the cylindrical cavity is greater than the diameter of the impellers; the gasket support plate is a round disc having the diameter as the same as the diameter of the impellers; the floating lock consists of an upper round disc and a lower round disc and a double-head stud and a bolt which are used for connecting the two round discs; the mounted floating lock can move between the gasket support plate and the lower mold; the impellers are arranged on the gasket support plate, and are fastened by the upper mold and the lower mold; and the upper mold and the lower mold are positioned through seam allowance, and are fixed by the bolts. The clamp for abrasive flow machining of the narrow plow passage closed impellers can be used for fixing the impellers and can guide abrasive materials to flow through the surface of the impeller flow passage, and keep a given pressure so as to grind and polish the internal part of the impeller flow passage, form a circular loop and realize reciprocating flow of the abrasive materials.

The invention provides a user-configurable perch for a bird feeder. The perch comprises four generally “U”-shaped or “C”-shaped lobes arranged in a generally circular loop, where the loop provides the surface onto which the birds perch. The loop is coupled to a central plate by four support members, which serve to separate the center plate from the loop. The perch is coupled to the bird feeder with a fastener inserted through a hole in the center plate. The perch may be coupled to a bird feeder in one of two configurations. In a first configuration, the loop is positioned below the bottom surface of the bird feeder to accommodate larger birds. In a second configuration, the loop is positioned, above the bottom surface of the bird feeder to discourage larger birds and cater to smaller birds.

The invention relates to a small high-isolation double-notch UWB (Ultra-wide Bandwidth) MIMO (Multiple Input Multiple Output) antenna, which comprises a main floor board, a first floor board limb, a second floor board limb, a first metal strap, a second metal strap, a third metal strap, a first antenna unit, a second antenna unit, a first tail end opening gap and a second tail end opening gap, wherein the third metal strap is used for connecting the two floor board limbs. Due to the application of the two floor board limbs, a first excitation port and a second excitation port can be placed on the upper edge of a basal board, so that the impedance bandwidth of the antenna units can be effectively improved, and the isolation between the two antenna units is also effectively increased. The technical problem that the current UWB MIMO antenna cannot simultaneously realize small size, small cross coupling and wide bandwidth is solved. The first metal strap and the first antenna unit form a first annular loop, the second metal strap and the second antenna unit form a second annular loop, so that the high frequency notch is realized. Due to the application of the first tail end opening gap and the second tail end opening gap, the low frequency notch is realized. Therefore, the double-notch function is realized.

The invention discloses a cold, heat and electricity combined storage and combined supply system. The system comprises a heat pump heating and cooling energy storage loop, a cold and heat energy heatengine power generation loop, a heat supply loop and a cold supply loop; power station off-peak (cheap) electricity is used for driving a heat pump heating and cooling circular loop to make high-temperature heat energy and low-temperature cold energy, the heat energy and the cold energy are stored in a heat storage device and a cold storage device, at the power utilization moment, gas in the loopsabsorbs the stored high-temperature heat energy and the stored low-temperature cold energy, through heat engine circulation, an electric generator is driven to generate electricity, and the electricity is supplied to a user. On the heat using time interval, the heat supply loop supplies the heat energy in the heat storage device to the user through the heat exchanger, and on the cold using time interval, the cold supply loop supplies the heat energy in the cold storage device to the user through the heat exchanger. Through the cold, heat and electricity combined storage and combined supply system, simultaneous storage and supply of cold, heat and electricity can be achieved, various needs of the user can be met, and the system has the advantages of being high in energy storage density, low in cost, high in efficiency, suitable for power grid peak shaving and various renewable power stations, free of generating room temperature gas and the like.

A three frequency band RFID reader-writer antenna used for a high frequency (HF) and a ultra high frequency (UHF) and a microwave (MW) is provided, specially relates to an antenna used in the laminated flat technology, composed of dielectric plates 1 and 2, a radiating element, an air layer, a ground plate, a coupling and feeding unit. The radiating element is arranged above the dielectric plate 1 grooving along the edge. The ground plate is arranged on one side of the dielectric plate 2 with a gap arranged at the middle, which is fed with the power to the radiating element through the gap. The air layer is arranged between the dielectric plates 1 and 2, adjusting the working bandwidth of the antenna through adjusting the thickness of the air layer and the size of the gap. The electromagnetic coupling and feeding unit is arranged on the other side of the dielectric plate 2 composed of a circle loop and a bicomponent microstrip line, wherein the circle loop provides the HF working performance to the antenna, and the bicomponent microstrip line controls the matching performance of the UHF and the MW. The invention has the characteristics of wider working bandwidth and the high gain, which is suitable for the antenna application of the three frequency band RFID reader-writer.

An exercise machine which includes a base upon which a user stands alongside an upwardly extending support. A handle, mounted to a lever rotatably fixed to the support, extends over the base so that the user can grip the handle with both hands and rotate the handle along a circular loop, alternately bending at the knees and then moving to an upright position, with arms extended, against a variable resistance force which is generated by a flywheel connected via a drive mechanism to the lever.

The invention relates to fixed bed combined reaction equipment which mainly comprises a cylindrical shell with an end enclosure, a reaction gas inlet and a reaction gas outlet on the shell, a porous gas distributor, a porous gas collection plate, a catalyst layer and a heat exchange pipe for cooling media to transfer heat; steam headers provided with stream pressure adjusting valves form a cooling medium circular loop of which catalysts in at least one heat exchange reaction area are filled in the pipe. The fixed bed combined reaction equipment ensures that heat transfer is designed according to the requirement on the amount of the reaction heat transfer in the reaction, is used for the synthesis of methanol and dimethyl ether, methanation, F-T reaction, the preparation of phthalic anhydride by ortho-xylene oxidation and other strong-effect reaction processes, reduces the temperature difference, improves the reaction efficiency and the yield, saves energy, reduces consumption and achieves the large-sized aim.

An EUV reticle pod is provided. The pod includes an inner and an outer box assembly. The inner box assembly contained in the outer box assembly includes a base and a cover. The base has an upper surface and a surrounding wall. The upper surface includes a carry surface, at least one trench, and a first contacting surface. The EUV reticle is carried above the carry surface. The trench has a circular loop structure and its bottom is lower than the carry surface. The carry surface, the trench, and the first contacting surface are sequentially distributed from the center of the upper surface towards the surrounding wall. The cover has a concave for accommodating the EUV reticle and a second contacting surface for cooperating with the first contacting surface to form an air-tight seal. The trench captures and traps particles to reduce the particle contamination on the reticle.

The invention relates to an anti-time pseudo-blocking proportional-integral control system and a method thereof. The system comprises a humidity controller and a moisture controller which are connected as a loop. A temperature control circular loop is introduced into a loop of a temperature controller and the humidity controller, therefore the whole system forms a feedback compensation loop. The invention provides the anti-time pseudo-blocking proportional-integral control system and the method thereof introduced on the basis of compensating time delay by the controllers, which is provided with the sections of an integration variable PI function and an anticipation function. Compared with the conventional control method, an anti-time pseudo-blocking PI controller has simpler design and easily adjustable parameters.

The invention discloses a concurrent recycling system for boiler smoke afterheat. The recycling system comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger is arranged on the high temperature side of a smoke flue and comprises a heat absorption section and a heat release section; the heat absorption section is connected with the heat release section through a first pipeline so as to form a circular loop; the heat absorption section is arranged in the smoke flue; the second heat exchanger is arranged on the low temperature side of the smoke flue; the second heat exchanger comprises an inlet collecting pipe and an outlet collecting pipe of a second pipeline; the first heat exchanger is connected with the second heat exchanger through a third pipeline; the heat release section of the first heat exchanger is arranged in the third pipeline; after heating medium is flowed into the third pipeline, the heating medium is flowed into the second heat exchanger through the inlet collecting pipe of the second heat exchanger and is flowed out of the outlet collecting pipe of the second heat exchanger. According to the invention, smoke temperature can be reduced lower; boiler smoke afterheat energy saving and recycling space is enlarged greatly; the temperature of boiler smoke which enters desulfurization and dedusting equipment is lowered; and operation cost of the desulfurization and dedusting equipment is saved.

In a biaxial stretch blow molding apparatus (10) for wide-mouthed containers, preforms (6) that are in an inverted state are conveyed on a single plane by preform carriers (40) that go around a carrier circuit (30) in the form of a loop, are heated via a heating station (60), and are then transferred via a transfer station (80) to stretch blow molding mold assemblies (72) that go around a circular looped path (71). The molded wide-mouthed containers (1) are taken out of the stretch blow molding mold assemblies (72) along a conveying path on a same plane and collected by a collection station (90). Wide-mouthed containers can be formed continuously and at high speed, which is less wasteful and more economical than the case where wide-mouthed containers that are formed from films.

An RF coil includes a plurality of concentric loops lying at different positions along a coil axis, whose sensitivity is improved in a central portion, and a plurality of loops are constructed as circular loops whose circles correspond to those formed by cutting a sphere common to the loops vertically with respect to the coil axis at different positions along the coil axis. Each of the plurality of loops constitutes a solenoid coil. Alternatively, a helical coil uninterruptedly running around the coil axis is formed.

The invention relates to a polluted soil pyrolysis desorption repairing device and method. The polluted soil pyrolysis desorption repairing device comprises a pyrolysis desorption treating unit, a gaseous product treating unit and a liquid product treating unit. The pyrolysis desorption treating unit is a pyrolysis desorption furnace, the gaseous product treating unit comprises a combustion chamber, a flue gas dedusting unit, a spraying unit and a flue gas discharging port, and the combustion chamber, a heating layer of the pyrolysis desorption furnace, the flue gas dedusting unit and the spraying unit form a circular loop through a flue; and the liquid product treating unit is used for treating a gaseous product obtained after pyrolysis gas passes through a three-phase separating unit. The polluted soil pyrolysis desorption repairing device and method are good in treating effect, coking does not easily occur, and secondary pollution is not generated.