141 results about "Coupling" patented technology

A heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve has a base stent that is deployed at a treatment site, and a valve component configured to quickly connect to the base stent. The base stent may take the form of a self- or balloon-expandable stent that expands outward against the native valve with or without leaflet excision. The valve component has a non-expandable prosthetic valve and a self- or balloon-expandable coupling stent for attachment to the base stent, thereby fixing the position of the valve component relative to the base stent. The prosthetic valve may be a commercially available to valve with a sewing ring and the coupling stent attaches to the sewing ring. The system is particularly suited for rapid deployment of heart valves in a conventional open-heart surgical environment. A catheter-based system and method for deployment is provided.

In the case where high speed differential signals are transmitted in differential transmission lines through via holes with open-stubs, signal waveforms are distorted due to impedance mismatch in the open-stubs of the via holes, thus causing jitter, which has become an issue of high speed signals. For differential transmission lines that pass through via holes with open-stubs, a degree of coupling of the lines is decreased while the differential characteristic impedance is made constant. Thereby, the effects of backward cross talk noise caused by the coupling can be minimized, and thus jitter can be suppressed.

The present invention relates to a spray head for spreading liquid or semi-liquid products, preferably foodstuff. A product feeder (5) is provided to feed or convey a product (2) through a feed conduit (3) from a product container (4) to the spray head (1) and spraying nozzles (18) are provided to spread the product (2) when it is discharged from the spray head (1). The spray head (1) comprises three separate members, namely an upper coupling member (7), a lower coupling member (8) and a nozzle member (9) provided therebetween. The upper coupling member (7) is connected to the lower coupling member (8) and to the feed conduit (3). The nozzle member (9) and/or the upper coupling member (7) define, when the upper and lower coupling members (7, 8) are interconnected, distributing spaces (13) for distributing product (2). The spraying nozzles (18) of the nozzle member (9) are provided to open and to close. The nozzle member (9) is removable from the upper and lower coupling members (7, 8) when these members have been disconnected from each other.

An optical scanning apparatus includes light sources, an aperture having, and coupling lenses. Numbers of the light sources and the coupling lenses are equal to each other and the apparatus satisfies an inequality 12.7 <(D×β₀×m₀×xdpi)/(2×NA) <38.1 and an equation β₀=(β₊−β₋)/(n−1), wherein D represents a width of the slit of the aperture, β₀represents a beam open angle, mo represents a total lateral magnification ratio, dpi represents a number of dots per inch, NA represents a numerical aperture, β₊ represents a positive open angle, β₋ represents a negative open angle, and n represents the number. Further, an image forming apparatus using this optical scanning apparatus and an image forming method are provided.

A retractor may be used during spinal surgery. The retractor may include a frame and one or more retractor blades. Each retractor blade may include a coupling arm, a retainer, and a retraction component. The coupling arms may be coupled to the frame such that the coupling arms are able to move inward or outwards relative to the frame. The retainer may secure the retraction component to the coupling arm. In some embodiments, the retraction blades may be made of a radiolucent material that allows radiological images to be taken during a surgical procedure with the retractor in place. A position of retraction components relative to the frame may be changed during a surgical procedure. One or more of the retraction components may be replaced during a surgical procedure without removing the retractor from the patient.

The invention provides a high strength organic / inorganic nano composite film layer materials and method for preparation, wherein the composition comprises 10-13% of titanate, 7-17% of silicane coupling agent, 0-6% of silicate ester, 40-65% of alcohol solvent and 1-4% of water. The preparation of the composition consists of using inorganic acid as catalyst, co-hydrolyzing titanate, silicate and silane coupling agent in dimethyl carbinol, coating the obtained paint by rotary, dipping or spraying methods onto the surface of the appliances, finally solidifying 1-3 hours at 135- 150 deg. C.

The invention discloses an automated linear displacement sensor calibration device which mainly comprises a substrate, and dual linear guide rails, a grating ruler, a servo motor and a vertical lifting device which are fixed on the substrate; a roller screw rod is connected with the servo motor by a coupler; a horizontal regulation device, a universal clamp and a locking nut are clamped with one another and are connected with the vertical lifting device; a sliding laser reflection mirror support frame, a sliding laser interferoscope support frame and a sliding dual-frequency laser interferometer support frame are fixed on the linear guide rails; a fixed pull rod, a laser reflection mirror and a grating ruler reading sensor are fixed on the sliding reflection mirror support frame; a laser interferoscope is fixed on the sliding interferoscope support frame; a dual-frequency laser interferometer is fixed on the dual-frequency laser interferometer support frame. The calibration precision can be ensured by the arrangement of the laser calibration mechanism, manpower and time cost are greatly reduced, and the calibration work efficiency is enhanced.

A method for estimating the force on a distal end of a working catheter includes positioning a portion of a robotically controlled guide catheter and working catheter into a body lumen wherein a distal end of the working catheter projects distally from a distal end of the guide catheter. The working catheter and guide catheter are dithered with respect to one another using a dithering device operatively connected to a proximal portion of the working catheter. The coupling may occur directly to the working catheter or via a seal such as a Touhy seal. The force experienced by the working catheter at a proximal region is measured through at least one dithering cycle. The force at the distal end of the working catheter is then estimated based on the measured force at the proximal region. The estimated force may be displayed to a physician on, for example, a monitor.

A mounting system for supporting a plurality of photovoltaic modules on a sloped support surface, such as a sloped roof, is disclosed herein. The mounting system may include one or more support surface attachment devices, each support surface attachment device configured to attach one or more photovoltaic modules to a support surface; and one or more module coupling devices, each module coupling device configured to couple a plurality of photovoltaic modules to one another.

Transistor bodies of semiconductor material located at a main surface of a semiconductor substrate between shallow trench isolations are provided with a rounded or curved upper surface. A floating gate electrode is arranged above said upper surface and electrically insulated from the semiconductor material by a tunnel dielectric having essentially the same tiny thickness throughout a primary tunnel area encompassing the area of curvature. The floating gate electrode may bridge the transistor body and is covered with a coupling dielectric provided for a control gate electrode, which forms part of a wordline.

The invention discloses a power battery thermal management system with functions of efficient heat dissipation and efficient heating. The power battery thermal management system comprises a power battery case and a thermal management system, wherein a plurality of battery monomers are adjacently aligned to form a battery pack placed inside a battery case housing, a composite phase change material plate is sandwiched between the gap of the adjacent batteries and the surface of the outermost side battery in the battery pack width direction, the composite phase change material plates and thermal pipes are combined to form composite phase change material thermal pipe coupling components, the composite phase change material thermal pipe coupling components are additionally arranged on both sides of the battery pack, the thermal pipes extends from the through holes on the battery module housing, the extending ends are connected to heating devices and heat dissipation fans, and a programmable automatic temperature regulator treats the signal from a temperature sensor by programming so as to determine whether the fans and the heating devices are started. The power battery thermal management system of the present invention has advantages of simple and firm whole structure, high efficiency, stable operating, and the like. In addition, the battery pack can be subjected to direct, unified and uniform cooling and heating, such that the battery can work at the appropriate temperature range, and the electric vehicle battery thermal management system is improved.

A heat generating roller, fixing equipment and an image forming apparatus in which warm-up time is shortened while preventing excessive temperature rise and good fixing performance is realized by preventing occurrence of offset. In the heat generating roller, fixing equipment and image forming apparatus, the heat generating roller is formed principally by laying a high permeability conductive layer and a nonmagnetic conductive layer in layer. When a voltage is applied from a power supply (not shown) to an exciting coil and an AC current flow through it, magnetic flux is generated around the exciting coil and a magnetic field is formed. Since the heat generating roller has the high permeability conductive layer and the nonmagnetic conductive layer laid in layer, magnetic coupling of a system consisting of the heat generating roller and the exciting coil is good at the time of low temperature and heat generation of the heat generating roller is accelerated. When the Curie point is exceeded, skin depth becomes deep and skin resistance decreases, which suppresses generation of Joule's heat and reduces heat generation of the heat generating roller.

A flexible pipe coupling having first and second member rotatable relative to one another. The first member defines national pipe taper, or NPT, threads and the second member includes an internal swag member for forming a swagged connection with a flexible pipe. The coupling can be swagged fitted with respect to an end of a fluid transfer pipe having an inner or primary hose and an outer or secondary hose. The swaged connection can be made with the primary hose. The outside diameter of the coupling can be substantially the same as the outside diameter of the secondary hose so that the coupling can be passed through an entry boot of a sump disposed under a fuel dispenser.

A bone conduction hearing aid device comprising a vibrator configured to vibrate in response to sound signals received by the device. The device further comprises a housing mass forming a housing for one or more operational components of the device, wherein the housing mass is attached to the vibrator so as to move in response to the vibration. The device also comprises a coupling configured to attach the device to a recipient so as to deliver the generated mechanical to the recipient's skull.

The present invention relates to an apparatus and method for growing a high melting point single crystal having a predetermined orientation, which is grown from a culture rod (3) by a floating zone method or a suspension zone method. The device comprises: culture rods (3) and crystal nuclei (4), a strip-shaped resistance heating type heating strip (6) provided with at least one opening is installed between its ends and next to it, and it is heated To the crystal melting temperature, so as to form the melting zone (5), drive mechanism (8, 11), so that relative movement occurs between the heating belt (6) and the crystal nucleus (4) and the culture rod (3) that are installed next to the heating belt , the molten liquid material of the culture rod (3) is obtained through each opening of the heating belt, and causes single crystal growth on the crystal nucleus (4) by cooling, and another heating device (15, 16), which is arranged at the melting The vicinity of the zone (5) in order to set the temperature gradient within the range of the melting zone (5). In order to reduce the temperature gradient in the melting zone, said further heating device (15, 16) comprises at least one heating coil (17, 19), which is driven with radio frequency, wherein the heating strip (6) and the respective heating coil are thus mounted opposite each other (17, 19) so that radio frequency radiation is coupled on the heating strip in order to generate an additional inductive heat input in the heating strip and to set a temperature gradient across the melting zone (5). This enables an inductive heat input into the heating strip, which can be varied or varied in a targeted manner.

A DRAM and memory controller are coupled during driver training to reduce mismatches. The impedances of the system are controlled through a termination at the controller to yield improvements in timing margins. The coupling of the components on a shared electrical bus through adjustment of the termination values during training removes known offset issues.

Provided are an ice bank fixation device for a refrigerator, and a refrigerator including the ice bank fixation device. The ice bank fixation device includes a first coupling part disposed at an ice bank and a second coupling part. The second coupling part is configured to keep the ice bank at a position attached to a backside of a refrigerator door by an interlocking motion with the second coupling part.

In one aspect, a method of a storage adapter controlling a redundant array of independent disks (RAID) may be provided. The method may include examining performance curves of a storage adapter with a write cache, determining if an amount of data entering the write cache of the storage adapter has exceeded a threshold, and implementing a strategy based on the determining operation. The strategy may include one of coupling Read-XOR/Write operations and providing priority reordering of Read operations over the Read-XOR/Write operations in order to minimize host read response time if data entering the write cache is less than the threshold, and allowing all Read operations and Read-XOR/Write operations to be queued at the device using simple tags in order to achieve maximum throughput if data entering the write cache is greater than the threshold. Additional aspects are described.

The invention relates to a series coupling inductance high-voltage direct current breaker and a control method thereof. The breaker comprises a change-over switch, a switching circuit and an energy consumption device which are connected in series. The change-over switch adopts a mechanical switch, the switching circuit adopts a coupling circuit, and the energy consumption device adopts a lightning arrester. The high-voltage direct current breaker is connected with a control circuit, when a failure happens, the mechanical switch detects failure current, and transfers the failure current to the coupling circuit. The failure current charges a capacitor in the coupling circuit, flows over current change of a conductance L1, generates change current which is opposite to the failure current in direction and flows through a conductance L2. The failure current and the change current are overlaid, and the overlaid current makes a zero crossing point on a main circuit of the mechanical switch to cut off the mechanical switch. Voltage on two ends of the capacitor reaches operation voltage of the lighting arrester so that the lightning arrester acts and energy is released from the lightning arrester. The series coupling inductance high-voltage direct current breaker can meet requirements of quick cutting off of the failure current, can realize non-arc cutting-off of the mechanical switch, and the control method is simple and easy to operate, and complete in function.

An orientation-insensitive ultra-wideband coupling capacitor. The orientation-insensitive ultra-wideband coupling capacitor includes a plurality of external surfaces, a low frequency portion, and a high frequency portion. The high frequency portion is so disposed on, and electrically connected to, the low frequency portion so as to allow the orientation-insensitive ultra-wideband coupling capacitor to work identically when mounted on any external longitudinal surface of the plurality of external surfaces thereof and thereby be readily SMT compatible without regard to special orienting procedures.

The invention discloses a movable clamping device for enameled wires. The movable clamping device comprises a conveying belt, wherein the conveying belt is tensioned on two driving rollers; two ends of each driving roller are respectively hinged onto corresponding supporting legs; a servo motor is fixed on one supporting leg, and one end of the driving roller corresponding to the supporting leg extends out of the supporting leg, and is fixed with the output shaft of the servo motor through a shaft coupling; a plurality of rubber object placing block are fixed on the conveying belt; an arc-shaped through groove is formed in the upper surface of each rubber object placing block; two ends of a wire-to-be-placed roller are positioned in each arc-shaped through groove; supporting plates are fixed on the ground on the both left and right sides of the conveying belt; a pushing air cylinder is fixed on each supporting plate; the pushing rod of each pushing air cylinder extends out of the corresponding supporting rod, and is inserted into a center groove formed in one end of the center shaft of the corresponding wire-to-be-placed roller. The movable clamping device has the advantages that the wire-to-be-placed roller wound with copper wires of the enameled wires can be automatically clamped and fixed for wire placing, and the feeding can be automatic, so that the operating efficiency is high; clamping of the wire-to-be-placed roller needs not to be controlled manually, so that the labor cost is reduced.

Provided is an electric cable cutter that easily cuts a cable. An electric cable cutter which is used together with a standard hand-held tool as a power source includes: a housing (1) which serves as a gear box; a pair of cutting blades (11, 12) which is supported by the housing and is relatively opened and closed; a pair of orthogonal gears to which power is input from the hand-held tool; a drive shaft which includes an eccentric shaft portion attached to an output gear of the pair of orthogonal gears; a differential gear mechanism which decelerates a rotation of the drive shaft; and an Oldham coupling which corrects an eccentric rotation of an output gear of the differential gear mechanism to a rotation about a center axis, wherein a circular-arc-shaped outer surface of the other cutting blade axially supported by one cutting blade so as to be openable and closable in the pair of cutting blades is provided with an outer toothed portion engaging with an output gear of the Oldham coupling and an input gear of the pair of orthogonal gears is connected to the hand-held tool through an adapter pin which is attachable and detachable through a one-touch operation.