Abstract: A fluid bearing design is provided which according to one aspect includes a shaft defining together with a surrounding sleeve an asymmetric journal bearing, and a thrust bearing at or near an end of the shaft towards which the asymmetric journal bearing is pumping, with that end of the shaft being closed off. The journal bearing asymmetry establishes a hydraulic pressure toward the closed end of the shaft. This pressure provides an axial thrust to set the bearing gap for the conical bearing. The conical bearing itself is a relatively balanced bearing, although it may have a bias pumping toward the shaft and the journal bearing.

Abstract: A fluid dynamic bearing motor is provided comprising a base, a counter plate fixed to the base, a stationary sleeve fixed to the base and supported on the counter plate, a rotating shaft axially disposed through the sleeve, and a fluid dynamic bearing disposed between the shaft and the sleeve and between a free end of the shaft and a first surface of the counter plate, wherein at least one of the free end of the shaft and the first surface of the counter plate comprises a single spiral-shaped groove formed thereon.

Abstract: A bearing for a high-speed and high-momentum rotating flywheel system for satellite or other applications that enables better recovery when unintended physical contact occurs. This better recovery is achieved through increased impact resistance and wear resistance by using a flat annulus connected to the main shaft of the primary bearing and secondary metal bearing and coating both annuli with rhenium or its alloys. Rhenium has a very high melting point but in the annealed condition is ductile so the rhenium coating is hardened to a very high strength and wear resistance but the rhenium beneath is still ductile. This combination of hard and soft material provides good wear resistance and impact resistance for those times when the primary bearing ceases to operate and contact is made with the secondary bearing.

Abstract: An electric motor in which magnetic steel sheets and stator end plates are laminated, wherein notches are formed in slot portions in the stator end plates to prevent part of conductive segments coming into direct contact with the stator end plates or the like, when cracks appear in the insulation paper when the conductive segments comprising flat copper wire forming a coil are inserted into the slot portions formed in a stator core and leg portions protruding from the slot portions are being folded.

Abstract: A dynamoelectric generator comprises a rotor having a plurality of permanent magnet elements disposed in an annular ring configuration about an axis of rotation, the magnet elements successively alternating in magnetic polarity along an inner annular surface, and a stator spaced from the rotor by a radial air gap. The stator includes a plurality of magnetic core segments having respective coils wound thereon to form stator windings, the core segments separated from direct contact with each other and disposed along the radial air gap. Each stator segment comprises a plurality of poles aligned with each other in a direction parallel to the axis of rotation. Thus the stator comprises a plurality of sets of stator poles in radial alignment, the sets being axially displaced from each other.

Abstract: The invention is directed towards structures for use with micro-formed membrane ultrasonic transducers, and methods for fabricating the structures. In one embodiment, the transducer includes a planar member having a piezoelectric material and spaced apart electrodes disposed on the planar member and coupled to the piezoelectric material for applying an electric field to the layer, and an acoustic backing member joined to the electrodes. In another embodiment, the transducer includes a planar member having a piezoelectric material that adjoins a semiconductor material, the semiconductor material having monolithically formed active circuits formed in the layer and coupled to the piezoelectric material. In still another embodiment, the transducer includes a planar member having a piezoelectric material, and an acoustic backing member having an adjoining layer of a semiconductor material having monolithically formed active circuits, the active circuits being coupled to the electrodes.

Abstract: A film bulk acoustic device having integrated trimmable device comprises a FBAR and a integrated tunable and trimmable device being integrated on a common substrate, at least a common electrode or piezoelectric layer. By trimming the integrated trimmable device or the FBAR and alter either the capacitance or inductance of the integrated trimmable device until the film bulk acoustic device having integrated trimmable device achieves the target resonance frequency. By taking advantage of the electrostatic force, the integrated tunable device is capable of providing tuning until the film bulk acoustic device having integrated tunable device achieves the target resonance frequency.

Abstract: The invention describes a method and an apparatus for driving fuel injectors divided into a plurality of injector banks, each bank containing at least one piezoelectric element, each bank being selected for charging or discharging by a bank-selection switch. The apparatus is characterized in that a bank selection switch includes a triac with a triac drive circuit.

Abstract: In accordance with the invention, a piezoelectrically actuated relay that switches and latches by means of a liquid metal is disclosed. The relay operates by means of a plurality of shear mode piezoelectric elements used to cause a pressure differential in a pair of fluid chambers. Differential pressure is created in the chambers by contracting and expanding the chambers due to action by the piezoelectric elements. The differential pressure causes the liquid metal drop to overcome the surface tension forces that would hold the bulk of the liquid metal drop in contact with the contact pad or pads near the actuating piezoelectric element. The switch latches by means of surface tension and the liquid metal wetting to the contact pads.

Abstract: A weatherproof retractable multimedia entertainment center that includes a housing having a retracted position and an activated position, a weatherproof entertainment system, and a retracting means mounted within the housing. The weatherproof entertainment system may be mounted within the housing so that the retracting means can move the weatherproof entertainment system from the retracted position within the housing to the activated position outside the housing when the weatherproof retractable multimedia entertainment center is activated.

Abstract: An escutcheon for an appliance door assembly is provided. The escutcheon includes a control panel mounting surface comprising a lower edge, and a plurality of formations depending from said lower edge and defining a retaining slot.

Abstract: An electromagnetic locking system for cabinet doors and drawers having a single actuator which turns on and off a power supply which in turn turns on and off a plurality of locking assemblies. The locking assemblies are attached to the framework of the openings for an existing cabinet's doors and/or drawers. Each locking assembly has a matching armature plate attached to the corresponding door or drawer for each particular opening. When turned on, the locking assemblies generate an electromagnetic field that attract their matching armature plates and secure them against the locking assemblies thereby securing and locking the door or drawer against the cabinet framework restricting access into the cabinet.

Abstract: An outer door panel for an appliance door assembly is provided which includes a frame comprising opposite lateral sides, an outer surface extending from the frame and bowed between the lateral sides, and a recessed control mounting surface extending from the outer surface between the lateral sides.

Abstract: The invention concerns a drawer slide with width equalization and, if necessary, centering, including a cabinet-side and a drawer-side slide rail for both sides of the drawer. At least one elastic, springy flexible width equalization element is on both sides of the drawer—each is located between the cabinet-side slide rail and the cabinet body, indirectly or directly by, for example, an angle rail. The cabinet-side slide rail is located, releasable, on the cabinet-attached angle rail, axially engaged, but still moveable crosswise/transversely and is lockable in the end position of the drawer. The advantage here is that any desired combination between the width equalization element and the slide rail can be set flexibly and, additionally, the drawer slide is easy to maintain and simple to repair or replace.

Abstract: An electron multiplier includes a plate having a plurality of interconnected particles, e.g., fibers, having electron-emissive surfaces. The particles may include a neutron-sensitive and/or neutron reactive material, such as 6Li, 10B, 155Gd, 157Gd,—and/or hydrogenous compounds, in excess of their natural abundance. The particles may include an X-ray sensitive and/or X-ray reactive material, such as Pb.

Abstract: Process for producing a middle electrode with precious metal reinforcement, a middle electrode being used with an ignition tip which is tapered relative to the middle electrode body, such that a precious metal wire with a cross section which corresponds to the tapered ignition tip is welded flat onto the tapered ignition tip and such that this precious metal wire is cut off at the desired height, with a sharp edge.

Abstract: An electron emitter is produced by applying a work function lowering material that does not require an extensive heating step before the material will function to lower the work function. By eliminating the extensive heating step, a small radius, highly tapered emitter tip will retain its shape to consistently produce a high angular intensity at a reasonable output power level.

Abstract: The field emission type cathode (K) is made as the multilayered structure (33) in which the conductive platelike corpuscles 30 are piled, whereby an edge portion of end surface of a field emission type cathode K for emitting electrons is formed sharply and easily.

Abstract: An electromagnetic radiation source is provided which includes an anode and a cathode separated by an anode-cathode space. The source further includes electrical contacts for applying a dc voltage between the anode and the cathode and establishing an electric field across the anode-cathode space. At least one magnet is arranged to provide a dc magnetic field within the anode-cathode space generally normal to the electric field. A plurality of openings are formed along a surface of the anode which defines the anode-cathode space, whereby electrons emitted from the cathode are influenced by the electric and magnetic fields to follow a path through the anode-cathode space and pass in close proximity to the openings.

Abstract: At least one of electrodes of an electron gun assembly is constructed by coupling at least first and second electrode members arranged in a direction of passing of electron beams. The first electrode member has a projecting portion on an end face thereof, which is to be coupled to the second electrode member disposed adjacent to the first electrode member. The first electrode member is coupled to the second electrode member via the projecting portion.

Abstract: A CRT including an evacuated envelope with a color selection electrode assembly disposed within the envelope, and an internal magnetic shield (IMS) secured to the color selection electrode assembly, and having a replaceable getter attachment assembly comprising a mounting rail and replaceable getter portion. The mounting rail having a first portion with a coupling clip attached to the IMS and a second portion extending therefrom. The replaceable getter portion includes a first end extending from the mounting rail with a getter cup attached thereto and a second end detachably attached to the second portion of the mounting rail. The replaceable getter portion extends from the mounting rail to deposit a film of evaporated getter material therefrom within the envelope.

Abstract: There is disclosed an outer frame structure suitable for a hermetically sealed structure, a hermetically sealed container in which slow leak is not easily generated and an image display using the container. In the hermetically sealed container comprising a front substrate, a back substrate disposed opposite to the front substrate, and an outer frame disposed in a peripheral portion between the front substrate and the back substrate, the front and back substrates, and the outer frame being bonded with an adhesive to form a hermetically sealed space. When a ratio W/T of width W and thickness T of the outer frame is set to an aspect ratio A of the outer frame, 1.5≦A.

Abstract: Each pixel of a field emission device includes a resistor with at least one emitter tip thereover and at least one substantially vertically oriented conductive element positioned adjacent the resistor. In a field emission array, a conductive element may contact each resistor of a line of pixels. A method for fabricating the field emission array includes forming a plurality of substantially parallel conductive lines, depositing at least one layer of semiconductive or conductive material over and laterally adjacent each conductive line, and forming a hard mask in recesses of the surface of the uppermost material layer. The underlying material layer or layers are patterned through the hard mask, exposing substantially longitudinal center portions of the conductive lines. The remaining semiconductive or conductive material is patterned to form the emitter tips and resistors. At least the substantially central longitudinal portions of the conductive traces are removed to form the conductive elements.

Abstract: A vacuum envelope of a display apparatus includes a rear plate, a face plate opposing the rear plate, and a side wall interposed between the rear and face plates. A phosphor screen is formed on the inner surface of the face plate. A plurality of electron-emitting elements are provide on the inner surface of the rear plate, to emit electrons to the phosphor screen. A reinforced glass plate is provided, opposing the outer surface of the face plate. A resistive layer is provided between the reinforced glass plate and the face plate. The resistive layer has a sheet resistance of 10 &OHgr;/□ or more and is set at an anode potential.

Abstract: A light-emitting cell, includes a light-emitting material which can emit light in response to a collision of an electron beam; an electron-emitting unit having a carbon nanotube as an electron source for releasing the electron beam and emitting the electron beam to ram against the light-emitting material; and a gate disposed above the carbon nanotube for controlling the electron beam emitting from the carbon nanotube whether to pass through the gate to ram against the light-emitting material at a specific address wherein the gate comprises a network conductor including a first metal layer for determining an x-coordinate of the address, a second metal layer for determining a y-coordinate of the address, and an extracting electrode placed between the carbon nanotube and the first metal layer for extracting the electron beam from the carbon nanotube.

Abstract: The present invention relates generally to a new dielectric forming metal/ceramic laminate magnet and process thereof. More particularly, the invention encompasses a new process for fabrication of a large area laminate magnet with a significant number of holes, integrated dielectric forming metal plate(s) and electrodes for electron and electron beam control. The present invention also relates to a magnetic matrix display and electron beam source and methods of manufacture thereof.

Abstract: An organic electroluminescent device includes a substrate, a plurality of gate lines on the substrate, a plurality of data lines on the substrate, each of the plurality of data lines crossing the gate lines, a plurality of switching elements and driving elements interconnected on the substrate, and a power line disposed in parallel to the data lines on the substrate, wherein the power line is electrically connected to at least two of the plurality of driving elements.

Abstract: An organic electroluminescent display (ELD) device includes a first substrate, a second substrate spaced apart and facing the first substrate, a plurality of switching thin film transistors and a plurality of driving thin film transistors interconnected on the first substrate, each of the switching thin film transistor and the driving thin film transistor having an active layer, a gate electrode, a source electrode, and a drain electrode, the drain electrode of the driving thin film transistor being extended to the pixel region to have an extended portion, a contact electrode contacting the extended portion of the drain electrode of the driving thin film transistor, a first electrode formed on the second substrate, an organic light-emitting layer on the first electrode, and a second electrode on the organic light-emitting layer.

Abstract: An organic electroluminescent display (ELD) device includes a first substrate, a second substrate spaced apart and facing the first substrate, a plurality of switching elements and a plurality of driving elements interconnected on the first substrate, a plurality of connecting electrodes connected to each of the driving elements, a plurality of subsidiary electrodes formed on an inner surface of the second substrate in spaces between two adjacent pixel regions, a first electrode formed on the inner surface of the second substrate covering each of the subsidiary electrodes, an organic light-emitting layer disposed on the first electrode, and a second electrode having first portions disposed on the organic light-emitting layer.

Abstract: An organic light-emitting diode device with a function of lateral light utilization. The device includes a transparent substrate, a first electrode, at least one organic light-emitting layer, a second electrode, and a wave-guide layer. In this case, the first electrode is formed on the transparent substrate, the organic light-emitting layer is formed on the first electrode, and the second electrode is formed on the organic light-emitting layer. The wave-guide layer is adjacent to the transparent substrate, and the wave-guide layer and the transparent substrate are located at the same layer in the organic light-emitting diode device. Furthermore, the invention also discloses a device with information display and back-light effect, which includes a light emitter and a wave-guide element. The wave-guide element transmits lateral light of the light-emitter outward, and the outputted lateral light is used as a light source.

Abstract: The invention relates to an incandescent lamp for motor vehicle headlights, having at least one incandescent filament (2) arranged inside the lamp vessel, and a shading device (4). A coil exit (2a) of the incandescent filament (2) is joined to an edge section (41) of the shading device (4) running substantially parallel to the coil axis, in order to ensure an improved suspension of the incandescent filament (2).

Abstract: An organic electroluminescent device including a substrate, a gate line on the substrate, a data line on the substrate, wherein the data line crosses the gate line, a switching element connected to the gate line and the data line, a plurality of driving elements connected to the switching element, each of the plurality of driving elements are interconnected in parallel, and an organic electroluminescent diode connected to each of the plurality of driving elements.

Abstract: A circuit arrangement for an electrical machine which is connected with at least one phase terminal of the electrical machine, has at least one passive charge pump connectable directly with phase windings of the electrical machine and having another terminal connected through further electronic means with an input/output, at which a switching on/switching off signal for a current supply is produced.

Abstract: A drive circuit for a brushless DC fan motor for rotating a rotor (permanent magnet) by a rotating magnetic field produced by turning on/off the flow of electric current to field coils by a signal to control terminals of switch elements in which switch sections are each connected in series with the field coils. When connecting capacitors for absorbing a current spike in parallel with the switch sections of the switch elements, resistors are each connected between the field coil and switch section, through which the capacitors are connected in parallel with the switch sections. A discharge current of the capacitors which absorbed a current spike when turning on the switch elements is passed via the resistors, thereby eliminating a current spike.

Abstract: A disk drive apparatus reproduces a signal from a disk and/or records an signal on the disk. A position detecting part produces a position signal in response to a rotation of a rotor. An activation operation block controls active operation of first and second power amplifying parts in response to the position signal. A signal producing part produces a slope signal which repeats a slope waveform a plural times during one period of the position signal. The shaping part produces first and second activation control signals which responds with the slope signal. The activation operation block controls the first and second power amplifying parts responding with the first and second activation control signals. Therefore, an excellent disk drive apparatus with reduced acoustic noise and reduced vibration can be realized by using only one position signal of one position sensor.

Abstract: A direct current motor for an engine throttle control is driven with a motor current of 100% duty ratio, when a throttle valve is to be moved from one throttle position to another or when the movement of the throttle valve is to be braked. The motor current is limited to a limit level, when the motor locks, that is, when the motor current continues to be in excess of the limit level for more than a predetermined period. The motor may be driven with a limited current at initial stages of moving the throttle valve, and with a further limited current when the motor lock is detected. The motor current is finally shut off, when the throttle valve is not rotated to the target position after the continuation of the limitation of the motor current for more than a predetermined period.

Abstract: In an apparatus for controlling extension and retraction of a shielding member, a bi-directional motor has a drive shaft coupled to the shielding member. A processing unit is operable in a normal operating mode, where the processing unit controls the motor for moving a free end of the shielding member between predetermined extended and retracted positions based on extended and retracted position information stored in a memory. When supply of electric power to the apparatus is interrupted, the processing unit determines current position information from motor rotation signals provided by a sensor unit such that the processing unit is able to automatically control the motor for moving the free end of the shielding member when supply of the electric power to the apparatus is resumed.

Abstract: A lid opening and closing system for a waste container having an opening and a lid for covering the opening, the system including a proximity sensor, which may be a capacitive proximity sensor, for sensing the presence of a user's hand or body near the waste container and for sending a control signal. A drive system is connected to the lid for causing the lid to move from a closed position, where the lid covers the opening, to an open position, where the waste container is positioned to accept waste, and then back to the closed position in response to the control signal. The proximity sensor being more sensitive to the user's hand or body approaching from the top of the waste container rather than from the front, sides or back of the waste container.

Abstract: A movable barrier operator having improved safety and energy efficiency features automatically detects line voltage frequency and uses that information to set a worklight shut-off time. The operator automatically detects the type of door (single panel or segmented) and uses that information to set a maximum speed of door travel. The operator moves the door with a linearly variable speed from start of travel to stop for smooth and quiet performance. The operator provides for full door closure by driving the door into the floor when the DOWN limit is reached and no auto-reverse condition has been detected. The operator provides for user selection of a minimum stop speed for easy starting and stopping of sticky or binding doors.

Abstract: An electrical rotating apparatus comprises an inverter system that outputs more than three phases. The apparatus further includes a stator comprising a plurality of slots and full span concentrated windings, with the windings being electrically coupled to the inverter system, and a rotor electromagnetically coupled to a magnetic field generated by the stator. A signal generator generates a drive waveform signal, that has a fundamental frequency, and the drive waveform signal drives the inverter system. The drive waveform signal has a pulsing frequency and is in fixed phase relation to the fundamental frequency. Additionally, the inverter system may be fed by a drive waveform signal that is fed through at least one signal delay device.

Abstract: A motor control apparatus and a motor control method according to the first embodiment of the invention are configured to instruct deenergization of a motor a predetermined period of time later than arrival of a subject to be driven by the motor at a speed measuring position, the predetermined period of time corresponding to a current speed of the motor upon arrival of the subject to be driven at the speed measuring position, and the speed measuring position being at a predetermined distance before a target stop position of the subject to be driven.

Abstract: A method for controlling an induction motor using an equivalent circuit model, the equivalent circuit having a real component and an imaginary component, is disclosed. The method instead of measuring a plurality of induction motor parameters, the real and the imaginary component of the induction motor impedance are calculated based on the measured phase currents and voltages. The invention calculates a first control function based on the real component of the induction motor impedance, and a second control function based on the imaginary component of the induction motor impedance, and adjusts the induction motor excitation frequency until the first control function is approximately equal to the second control function. After the excitation frequency is determined, the motor torque is calculated by taking the square of motor voltage in the d-q reference frame.

Abstract: The present invention relates to a method of controlling a numerically controlled machine tool having a plurality of feed shafts. Also, the present invention relates to a numerically controlled machine tool. According to the present invention, it is possible to solve conventional problems so as to realize highly accurate machining even when a moving body of the machine is moved at high speed. As the means for solving the problems, an appropriate command corresponding to a frictional force of the feed mechanism of the numerically controlled machine tool and also corresponding to a change in the weight of a workpiece is estimated by calculation, and the thus estimated command is outputted into the drive unit of the feed shaft motor so as to drive the feed shaft motor.

Abstract: An electrical rotating apparatus comprises an inverter system that outputs more than three phases. The apparatus further includes a stator comprising a plurality of slots and full span concentrated windings, with the windings being electrically coupled to the inverter system, and a rotor electromagnetically coupled to a magnetic field generated by the stator. A signal generator generates a drive waveform signal, that has a fundamental frequency, and the drive waveform signal drives the inverter system. The drive waveform signal has a pulsing frequency and is in fixed phase relation to the fundamental frequency. Additionally, the inverter system may be fed by a drive waveform signal that is fed through at least one signal delay device.

Abstract: An electrical rotating apparatus comprises an inverter system that outputs more than three phases. The apparatus further includes a stator comprising a plurality of slots and full span concentrated windings, with the windings being electrically coupled to the inverter system, and a rotor electromagnetically coupled to a magnetic field generated by the stator. A signal generator generates a drive waveform signal, that has a fundamental frequency, and the drive waveform signal drives the inverter system. The drive waveform signal has a pulsing frequency and is in fixed phase relation to the fundamental frequency. Additionally, the inverter system may be fed by a drive waveform signal that is fed through at least one signal delay device.

Abstract: A rechargeable battery pack for a surgical powered instrument. The battery pack is an assembly of individual cylindrical battery cells and has its electrical terminals in the form of sockets recessed within the body of the pack in the interstices between the cells. The terminal sockets are adapted to receive elongated plugs and enable the pack to be handled while minimizing the risk of shorting.

Abstract: A battery system for a medical device includes a first power supply and a second power supply. The first power supply is capable of being connected to the medical device to supply power to the medical device during a first operating mode of the medical device. The second power supply supplies power to at least one of a portion of the medical device and the battery system during an alternate mode, exclusive of a state the first power supply.

Abstract: A wound field synchronous machine control system comprises: an auxiliary winding for obtaining auxiliary AC voltage from the wound field synchronous machine; a phase controlled rectifier for rectifying the auxiliary AC voltage and supplying rectified DC voltage to the wound field synchronous machine; and a controller. The controller is configured for using a voltage signal across the auxiliary winding to obtain volt-second values of the auxiliary winding and using the volt-second values for firing angle control of switches of the phase controlled rectifier. Alternatively or additionally, the controller is configured for obtaining airgap flux values of the wound field synchronous machine and using the airgap flux values for firing angle control of switches of the phase controlled rectifier.

Abstract: Several novel zero voltage switching (ZVS) cells and a ZVS dc to dc transformer circuit are revealed. A U core transformer structure for use with the dc to dc transformer circuit is also revealed. An optimal gate drive circuit that achieves optimal switch timing for ZVS switches is revealed. The optimal gate drive circuit achieves optimal timing for the case in which there is sufficient energy available to drive a zero voltage transition and also for the case in which there is insufficient energy to drive a zero voltage transition providing turn on current to the switch at the minimum drain voltage of the switch. A magnetically coupled multi-phase converter cell structure is revealed which achieves reduced switch ripple current and fast transient response for multi-phase systems with three or more cells. A ZVS active reset switch drive scheme is revealed for providing zero voltage switching in bi-directional power flow converters for both directions of power flow using a single active reset circuit.

Abstract: In a DC-DC converter, a technique for sensing current supplied to a load and establishing an output voltage that conforms to a predetermined load line. The current carried by an inductor is sensed and used to control the duty cycle of the voltage applied to the inductor, thereby controlling the output voltage. A current sensing circuit includes a feedback network. A pole attributable to the feedback network cancels a zero attributable to the inductor so that a control voltage is developed that varies substantially linearly with the load current.