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Grain auger blow-out door

A grain auger having a discharge chute with a primary opening is also provided with at least one secondary opening and a door movable between opened and closed positions relative to the secondary opening. The door is normally closed by spring bias, but will open if the primary discharge opening becomes blocked, thereby releasing grain through the secondary opening, to prevent damage to the auger.




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Flow-retarding chutes and spouts and method for delivering dry bulk free-flowing material to a location

A system and method for causing a differential flow rate to exist in a downspout so as to reduce abrasion of a bottom side of said downspout and to sort dry bulk material flowing therethrough. The present invention reduces the velocity of the mass of the dry bulk material, such as corn, thus preserving grain quality and reducing the exit velocity at the lower end of the spout.




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Electrospun fiber mats from polymers having a low Tm, Tg, or molecular weight

Methods and apparatus for forming non-woven fiber mats from polymers and monomers that are traditionally difficult to use for fiber formation are shown and described. Applicable techniques include electrospinning and other traditional fiber formation methods. Suitable polymers and monomers include those having low molecular weight, a low melting point, and/or a low glass transition temperature.




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Apparatus for growing carbon nanotube forests, and generating nanotube structures therefrom, and method

The present invention provides apparatus and methods for growing fullerene nanotube forests, and forming nanotube films, threads and composite structures therefrom. In some embodiments, an interior-flow substrate includes a porous surface and one or more interior passages that provide reactant gas to an interior portion of a densely packed nanotube forest as it is growing. In some embodiments, a continuous-growth furnace is provided that includes an access port for removing nanotube forests without cooling the furnace substantially. In other embodiments, a nanotube film can be pulled from the nanotube forest without removing the forest from the furnace. A nanotube film loom is described. An apparatus for building layers of nanotube films on a continuous web is described.




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Method of producing a low twist towel

The invention relates to a method for producing a towel, specifically a low twist towel, comprising the following steps: Z twisting a thick yarn and separately Z twisting a fine count yarn; unevenly S twisting the Z-twisted yarns to make the volume of the thick yarn more than that of the fine count; weaving the yarn to produce a fabric; processing the fabric with hot water to reduce inner tension in the yarn and make the fabric become fluffy. Fabric produced by this method can solve the dependency on PVA, reduce energy consumption and material consumption, and prevent water pollution. This method for producing a low twist towel is environmentally friendly, healthy, and energy saving.




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Cable stranding apparatus employing a hollow-shaft guide member driver

A cable-stranding apparatus includes a stationary guide, a motor, a driven guide, and a controller electrically coupled to the motor. The stationary guide is configured to guide strand elements in a spaced-apart configuration and to pass a core member. The motor is operatively associated with a guide driver. The driven guide is disposed at least partially within the guide driver so as to rotate therewith. The driven guide is configured to receive the strand elements from the stationary guide, individually guide the strand elements received from the stationary guide, and to further pass the core member. The controller is electrically coupled to the motor and configured to control the rotational speed and direction of the motor.




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Safety systems for wireless control for snow plows

A safety system for a wireless snowplow controller makes the wireless controller safer and more effective. The system includes a vehicle, a snowplow, a wireless controller and a tether. The controller wirelessly sends one or more control signs to one or more control modules coupled to the vehicle and/or the snowplow. The control signals may be used to control operation of the snowplow. The controller may be configured such that it is only able to send control signals when it is connected, via the tether, to a power supply coupled to the vehicle.




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Plow blade and method

The present application discloses a plow blade that may be mounted to a plow moldboard. In one exemplary embodiment, the plow blade comprises one or more blade segments, an elastomeric portion that at least partially surrounds the one or more blade segments and permits the one or more blade segments to move relative to the moldboard, and one or more bushings disposed in the elastomeric portion for attaching the plow blade to the moldboard. The one or more blade segments are generally shaped and positioned within the elastomeric portion such that a portion of each blade segment is disposed between at least one bushing and a top edge of the plow blade.




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Discharge pipe for snow blower

Provided is a discharge pipe for a snow blower, which is mounted on the snow blower, and is capable of easily removing snow covered on an inner wall of a conveyance duct in the process of discharging snow introduced from the snow blower to the outside.




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Portable vehicle roof snow and ice removal apparatus

An improved apparatus for removing snow and ice from the roof top of a truck, trailer, bus or similar vehicle is mounted atop a conventional flatbed trailer for ease of relocation from one site to another for use. The addition of a height adjustable scraper or plow blade that is operator controlled to remain in contact with the roof of the vehicle being cleaned is provided with a self-contained front-to-back and side-to-side stabilization mechanism to prevent damage to the tops of vehicles by gouging or tearing the roof top.




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Defrosting unit for snow blower

A defrost unit can include a throat insert configured to be attached to a snow blower, and an exhaust piping assembly interconnected between the throat insert and an engine exhaust outlet of the snow blower, wherein exhaust gasses from the engine exhaust outlet are directed to the throat insert.




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Removable plow attachment for snow blower

A removable plow attachment for a snow blower or thrower is provided. A plow attachment includes a plow member and hook-shaped brackets. The plow member is an arcuate shaped member configured for moving or plowing loose material such as snow, slush, etc. The plow member is removably coupled to the snow blower by the hook-shaped brackets and fasteners. L-shaped angling members are provided on the plow member. The brackets and the L-shaped angling members are configured so that the angle of the plow member relative to the snow blower and the surface being plowed can be adjusted.




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Ice scratcher for a snowmobile

An ice scratcher for attachment to a snowmobile has a first ice scratcher end, a second ice scratcher end opposite the first ice scratcher end, a first coil spring having a first spring axis disposed at or near the first ice scratcher end, a first elongated member having a first end connected to the first coil spring, a second coil spring connected to a second end of the first elongated member, the second coil spring having a second spring axis, and a second elongated member having a first end connected to the second coil spring and a second end at or near the second ice scratcher end. Alternative embodiments of the ice scratcher are disclosed. A snowmobile having the ice scratcher is also disclosed.




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Plasticizer composition for degradable polyester filter tow

A filter material adapted for use as a filter element of a smoking article is provided, the filter material being in the form of a fibrous tow that includes a plurality of filaments of a degradable polyester and a plasticizer composition applied thereto, the plasticizer composition and the degradable polyester having a Relative Energy Difference calculated using Hansen Solubility Parameters of less than about 1.3. Exemplary degradable polyesters include polyglycolic acid, polylactic acid, polyhydroxyalkanoates, polycaprolactone, polybutylene succinate adipate and copolymers or blends thereof. Exemplary plasticizer compositions include one or more of dimethylisosorbide, propylene carbonate, methylbenzyl alcohol, glycerol carbonate acetate, glycerol carbonate ethyl ether, and mixtures thereof, optionally in combination with triacetin. Filter elements and smoking articles, such as cigarettes, that contain the filter material are also provided.




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Smoke box with integral conversion to larger-bowl smoking pipe

A smoke box is provided to hold smoking material, a smoking pipe, and a smoking bowl. The smoking pipe holds a small quantity of smoking material. The smoking bowl holds a more substantial quantity of smoking material. The small smoking pipe, when inserted into the side-cavity on the smoke box, becomes a mouthpiece and a filtering chamber for the smoking material to be smoked through the smoking bowl, thereby providing two choices for the amount of smoking material for smoking.




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Power Management for Modulated Backlights

Power levels of a backlight are adjusted in a number of ways and based on a number of criteria. The adjustments result in a lower power consumption and, in some cases, may enhance audience attention to important objects in a scene. The adjustments comprise, for example, a combination of ramping down power (lowering final display brightness) in concert with corresponding compensatory LCD adjustments (increasing final display brightness). The adjustments may also include, for example, system dimming after ramp down/LCD adjustments are exhausted, or the shifting of an LDR2HDR curve.




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DYNAMIC POWER AND BRIGHTNESS CONTROL FOR A DISPLAY SCREEN

An image is displayed on an electronic display device at a reduced power level. Power used by the display device is maintained below a predetermined maximum power level by uniformly scaling the initial optical intensity of an image to a lower optical intensity whenever displaying the image at the initial optical intensity would result in power consumption of the display device exceeding the predetermined maximum power level.




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Method for storing and transporting products and a low pressure storage device therefor

A method for storing and transporting products in a low-pressure storage device and a low-pressure storage device therefore, to allow product storage in a simple manner, and to control the storage in a simple manner. The products transfer on a first storage path and on a second storage path that is arranged directly next to the first storage path, during the storage operation of the storage device.




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Portable window washer anchoring and tethering apparatus

A portable folding support structure for safely tethering an individual comprises a portable cart sized to fit through a residential doorway, having wheels and a motor that actuates at least one of the wheels. A hand-operated throttle and steering device control the cart. The cart comprises an extendable anchoring plate to prevent rolling. A substantially horizontal jib with the cart comprises a harness point for receiving a safety cable to which an individual is attached to allow safe cleaning practices and to minimize fall risk. A foldable outrigger provides stability to the cart and an anchoring pad attaches to a distal region of the outrigger to promote stability. A textile liquid-absorbing surface is positionable about an outer surface of a glass balcony to inhibit cleaning liquids from spilling below the level of the liquid-absorbing surface.




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Remote equipment storage apparatus with a downwardly extendable retrieval position

An apparatus for facilitating the storage of equipment such as ladders in the upper area, but particularly in the upper area on the outside of emergency vehicles such as trucks which includes a capability of moving the ladder to an extended lower deployed position to facilitate immediate access thereto by emergency workers such as firemen. An outer bracket is connected to an inner housing through a parallel linkage with the inner housing attached to the vehicle and the outer bracket attachable to the equipment. The outer bracket includes a downwardly extendable sliding carriage to facilitate positioning of the equipment at a lower level for aiding in retrieval thereof utilizing a flexible control arm.




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Flow limiter assembly for a fuel system of an internal combustion engine

A flow limiter for a fuel system is provided. The flow limiter includes a self-contained portion that enables testing of the flow limiter prior to assembly into a fuel system. A housing of the flow limiter is arranged to provide reduced or no pressure differential across a wall of the housing, permitting the housing to be reduced in size and thickness and providing improved consistency of operation.




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DYNAMICAL TIME DIVISION DUPLEX UPLINK AND DOWNLINK CONFIGURATION IN A COMMUNICATIONS NETWORK

A technology is disclosed for an evolved Node B (eNB). The eNB can determine a set of configuration indication fields numbered 1 to N, included in a downlink control information (DCI) format Y carried on the PDCCH, where N=⌊LformatYM⌋, Lformat Y is equal to a payload size of the DCI format Y, and M is a number of bits of each indication field. The eNB can map the DCI format Y onto the PDCCH. The eNB can encode for transmission from to the UE the PDCCH with a cyclic redundancy check (CRC) scrambled by an enhanced interference mitigation and traffic adaptation (eIMTA) Radio-Network Temporary Identifier (RNTI) for the UE.




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REDUCED POWER FOR AVOIDANCE OF INTERFERENCE IN WIRELESS COMMUNICATIONS

In one embodiment, a device of a first wireless communication network determines a link budget from a terminal in the first communication network to an unintended receiver for a communication from the terminal to an intended receiver in the first wireless communication network, based on the communication being configured with initial communication parameters. The device also determines whether one or more adjusted communication parameters would result in reducing a received power at the unintended receiver being below a link budget threshold, while still satisfying a receive sensitivity of the intended receiver. If so, the device causes the terminal to transmit the communication using the adjusted communication parameters. In one embodiment, the device is the terminal, and causing comprises transmitting as the terminal. In another embodiment, the device is a server of the first communication network, and causing comprises instructing the terminal to transmit the communication using the adjusted communication parameters.




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Method of Handling Normal Bandwidth and Narrow Bandwidth Coexistence

A time-division mechanism that a source station uses a proprietary frame for notifying switching from a normal bandwidth operation to a narrow bandwidth operation to at least one destination station in a wireless communication system, and uses a protection frame to reserve the service period for the narrow bandwidth operation without the interference from the normal bandwidth operation, wherein the service period of the narrow bandwidth operation is indicated in the protection frame.




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CONTENTION WINDOW ADAPTATION IN MULTI-CARRIER LISTEN-BEFORE-TALK PROTOCOLS

A method and network node for adaptation of contention windows in a multicarrier wireless communication system implementing a listen-before-talk protocol are disclosed. According to one aspect, a method includes determining at least one component carrier (CC), of multiple CCs to serve as a backoff channel. The method further includes performing a listen-before-talk procedure on the at least one CC serving as a backoff channel. The listen-before-talk procedure includes sensing for each backoff channel whether a clear channel exists during a backoff period drawn from a contention window (CW). The LBT procedure also includes deferring transmitting on a CC for which the sensing does not indicate that a clear channel exists. The LBT procedure also includes transmitting on a CC for which the sensing indicates a clear channel exists. The method also includes determining a size of the CW based on at least one transmission feedback value.




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Process of preparing nanocrystalline powders of an electroactive alloy

There are described powders comprising agglomerated nanocrystals of an electroactive alloy and oxygen. The main component of the alloy can be of nickel, cobalt, iron or mixtures thereof while the alloying element is one or more transition metals such as Mo, W, V, the alloy also including oxygen. Preferably the nanocrystals will be made of an alloy of nickel, molybdenum and oxygen. An electrode which is used by compacting the powders is also disclosed. Also disclosed, is a process for producing the powders by providing particles of nickel, cobalt and iron or oxides thereof with particles of at least one transition metal, (Mo, W, V) or oxides thereof and subjecting the particles to high energy mechanical alloying such as ball milling under conditions which include oxygen and for a sufficient period of time to produce a nanocrystalline alloy. Electrodes produced from these powders have an electrocatalytic activity for the hydrogen evolution which is comparable or higher than the electrodes which are presently used in the electrochemical industry. Moreover, these materials present an excellent chemical, electrochemical and mechanical stability. When use as a cathode the powders are useful in water electrolyzers, in chlor-alkali or the like cells.




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Compensation circuit for low phase offset for phase-locked loops

A phase-locked loop circuit and method for providing for compensation for an offset. A phase-locked loop circuit comprises a phase detector, a compensation circuit, a loop filter, and a VCO. The phase detector is coupled to receive a first input signal and a second input signal. The phase detector is configured to output one or more of a plurality of output signals indicative of a difference between the first input signal and the second input signal. The compensation circuit is coupled to receive the output signals and to reduce a voltage offset between the output signals. The compensation circuit is further configured to provide a plurality of compensated output signals. The loop filter is coupled to receive the compensated control signals. The loop filter is configured to output a first control signal. The VCO is coupled to receive the first control signal and to output the second input signal based on the first control signal. A method of operating a phase-locked loop circuit comprises receiving and comparing a first input signal and a second input signal and providing output signals indicative of the comparison. The method compensates for a voltage offset between the output signals and provides compensated output signals indicative of the compensation. The method filters the compensated control signals and provides a control signal indicative of the filtration. The method provides the second input signal based on the first control signal. Lower skew between the input and output may be achieved.




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Power transmission device of tractor

The arrangement of driven gears on a countershaft in a main speed change mechanism is shortened in an axial direction, whereby the main speed change mechanism can be made compact in the axial direction. Driven gears on a countershaft of a main speed change mechanism are successively arranged from front to rear in descending order of speed. A sub-low-speed drive gear for a sub-speed change mechanism is provided in front of the highest-speed driven gear on the countershaft, and the next-highest-speed driven gear serves as a sub-high-speed drive gear for the sub-speed change mechanism. A sub-low-speed driven gear and a sub-high-speed driven gear for the sub-speed change mechanism are provided on an output shaft to be engaged with the sub-low-speed drive gear and the next-highest-speed driven gear, respectively, and the highest-speed driven gear, the sub-low-speed drive gear, and the next-highest-speed driven gear are caused to overlap in a fore-and-aft direction.




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Tractors including automatic reset of a power takeoff circuit

A tractor includes a prime mover, a driven implement selectively engaged with the prime mover, and a switch for selectively engaging and disengaging the driven implement with the prime mover. The switch has three positions including a disengaged position, a momentary position, and an engaged position located between the disengaged position and the momentary position. The prime mover can be started with the switch in the disengaged position. The prime mover can be started with the switch in the engaged position when the switch was previously moved to the momentary position before being moved to the engaged position, such that after operation of the prime mover is stopped, the prime mover can be restarted without changing the position of the switch.




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Method of repositioning bearing wear in an industrial eccentric weight vibrator via power inversion and vibrator therefore

A vibratory device comprises a rotor and an eccentric weight. The eccentric weight is mounted to the shaft and has a center of mass that is offset from the shaft axis. The vibratory device is configured such that the eccentric weight is in a first rotational orientation relative to the shaft and rotates with the shaft when the shaft rotates in a first direction about the shaft axis and such that the eccentric weight is in a second rotational orientation relative to the shaft when the shaft rotates in an opposite second direction about the shaft axis. The vibratory device is further configured such that the eccentric weight automatically transitions from the first rotational orientation to the second rotational orientation when the shaft is switched from rotating in the first direction to rotating in the second direction.




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Powered dispensing tool

A powered dispensing tool includes a housing, a motor at least partially positioned within the housing, a rack operably coupled to the motor for powered translation, and a transmission selectively operably coupling the motor and the rack. The transmission includes an output shaft rotatable in response to rotation of the motor, and an output member drivably coupled to the rack and supported on the output shaft for relative rotation therewith. The transmission also includes a clutch member coupled for co-rotation with the output shaft and movable along the output shaft between a first position, in which the clutch member is engaged with the output member for transferring torque from the output shaft to the output member, and a second position, in which the clutch member is disengaged from the output member to inhibit torque transfer between the output shaft and the output member.




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Jig for firearm lower receiver manufacture

A machining tool assembly for manufacturing a firearm lower receiver includes a first and second side jig which are configured to be disposed on opposite sides of the firearm lower receiver and configured to removably attach to one another securing the firearm lower receiver therebetween. A drill block jig is removably attachable to the first and second side jigs disposed above the top surface of the firearm lower receiver, wherein the drill block jig comprises a plurality of through holes. A template spacer jig is removably attachable to the first and second side jigs disposed above the top surface of the firearm lower receiver, wherein the template spacer jig comprises a spacer aperture disposed through a template spacer thickness. A first and second pocket templates are removably attachable and disposed onto the template spacer jig. A router support plate is disposed onto either the first or second pocket templates.




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Electronic caliper configured to generate power for measurement operations

An electronic caliper generates power for measurement operations. The caliper comprises a scale member, a slider, a signal processing portion configured to measure a displacement between the scale member and slider, a power generating arrangement attached to the slider comprising a gear assembly configured to rotate in response to a force provided through a power generating handle to the gear assembly by a user moving the power generating handle relative to the gear assembly, and a power generator coupled to the gear assembly and configured to rotate in response to force provided by the rotating gear assembly and provide power to the signal processing portion. The power generating arrangement generates power as the user moves the power generating handle, and the power generating arrangement contributes a motion resistance force component of at most 20N as the user moves the power generating handle with a maximum manual acceleration.




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Transparent measuring device with enhanced viewing windows

A tool for measuring, marking, or cutting material, the tool formed of a rigid sheet of transparent material having a plurality of lines formed thereon, and a plurality of windows formed in the lines to enable viewing of material underlying the tool. The windows can be outlined in opaque lines, and alternating windows can be filled with contrasting transparent colors.




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Mirrored compass with improved sighting window

A recreational or outdoor mirrored compass is comprised of a base member, a hinged cover with a mirror and a sighting window for sighting a land mark, and a vial assembly pivotally coupled to said base member. The vial assembly comprises a vial, a magnetized indicator member pivotally journaled in the vial and an azimuth ring. At least parts of the inner sides of the sighting window are tapered in the line of sight.




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DENTAL POST DESIGNED FOR IMPROVED CROWN BONDING AND REDUCED ROOT DAMAGE

A post for a dental crown is disclosed having improved structural features—including increased post strength and reduced likelihood of root fracture. In one embodiment, the post includes a quadrangle (4-way) split shank for increased compliance and root stress reduction while providing very high mechanical grip strength and pull-out resistance. In another embodiment, a shortened threaded section and a thread-free shank tip minimize the possibility of root fracture while still providing high grip strength and pull-out resistance. Embodiments also include a radiused transition from a primary thread to a secondary thread portion of the shank for stress reduction; and axial grooves, cross-axis through holes and other shape features of the post head for increased crown retention strength.




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CLUTCH SYSTEM FOR A VEHICLE POWERTRAIN

A clutch pack includes a first set of clutch plates and a second set of clutch plates. The first set of clutch plates are arranged in an alternating configuration with the second set of clutch plates. The first set of clutch plates has radially outward extending teeth. The second set of clutch plates has radially inward extending teeth that define channels that are configured to allow air to flow into the clutch pack in an axial direction such that lubrication fluid located between adjacent clutch plates is channeled radially outward.




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METHOD OF OPERATING A POWER PATH WITH CONTINUOUSLY POWER-SPLIT TRANSMISSION AND WITH SECONDARILY COUPLED POWER SPLIT

A method for operating a vehicle drive-train having a continuously power-branched transmission with secondary coupling. In the open operating condition of reversing clutches of a reversing gear unit, torque applied in the area of a drive output can be supported by a range group in the area of a variator. In the event of a command to interrupt the power flow between a drive engine and the drive output, it is checked whether the vehicle is on an inclined surface and if the result of that inquiry is positive, the power flow between the drive engine and the transmission is interrupted at the latest when the rotational speed of the drive output is reduced to zero by opening the reversing clutches, while the active connection between the drive output and the variator is maintained by way of the range group.




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POWER EQUIPMENT DEVICE WITH REMOVABLE ATTACHMENTS

The disclosed technology relate to a device and system that include an outdoor power equipment power unit or cart configured to releasably couple a number of different interchangeable attachments or work implements to a common power unit, where some attachments include and/or require operator presence control, while other attachments do not include and/or require operator presence control. The outdoor power equipment power unit includes a power transfer coupling member operatively coupled to the drive shaft and configured to transfer rotational power to the associated attachment; and an operator presence actuation member operatively coupled to the operator presence control member, the operator presence actuation member configured to rotate in response to user actuation of the operator presence control member.




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Power Transmitting Apparatus

A power transmitting apparatus has a clutch member and a pressure member. The cam surfaces of the pressure-contact assist cam face each other. The cam surfaces of the back torque limiter cam face each other. A receiving portion for a clutch spring (10) on the pressure member (5) side has a receiving member (11) separate from the pressure member (5). A first cam surface (C1) and a second cam surface (C2), constituting the back torque limiter cam, are, respectively, formed on the receiving member (11) and the clutch member (4). A third cam surface (C3) and a fourth cam surface (C4), constituting the pressure-contact assist cam, are, respectively, formed on the pressure member (5) and the clutch member (4).




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Electrowetting elements

A dye for a fluid of an electrowetting element, the dye having a general formula selected from the group consisting of: wherein Q has the general formula: -Het1R1 or -Het1R1R2;V has the general formula: -Het2R3 or -Het2R3R4;Het1 and Het2 are heteroatoms;R1 and R3 are H;R2 and R4 are any functional group;T and U are any functional group;W, X, Y and Z are H or an alkyl group; andF, G, L and M are H or an alkyl group, andwith the proviso that the dye does not have the general formula: The present invention further relates to a fluid comprising a dye of the present invention, an electrowetting element and an optical display device comprising the fluid, and a use of the dye to reduce photo-bleaching.




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CHARGE PUMP CIRCUIT AND STEP-DOWN REGULATOR CIRCUIT

A charge pump circuit includes a capacitor, a first switch between the capacitor and a power supply terminal, a second switch between the capacitor and an output terminal, a third switch between the output terminal and the capacitor, a fourth switch between the capacitor and a ground terminal, and a control unit configured to generate control signals for the switches. The control signals include first signals generated during a first period that cause first and third switches to be in an ON state and second and fourth switches to be in an OFF state, second signals generated during a second period that cause first and third switches to be in an OFF state and second and fourth switches to be in an ON state, and third signals generated between the first and second periods, that cause the ON/OFF state of each of the switches to be switched at different times.




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INTERNAL POWER SUPPLY CIRCUIT AND SEMICONDUCTOR DEVICE

A control switch is connected to a power supply voltage and turns on based on a control signal to output a current. A clamp circuit is connected to a load and performs clamp control of the output voltage of the control switch. A current control element conducts or shuts off a current based on the output voltage to be clamp-controlled. A selector switch group includes switches, and performs switching based on a voltage varying with the current control by the current control element, thereby switching between paths for generating an internal power supply. The switch circuit connects or disconnects the coupling between the clamp circuit and the selector switch group.




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Power Switch Drivers with Equalizers for Paralleled Switches

Capacitors connected between gate terminals of a plurality of parallel-connected power transistors are charged and discharged in each switching cycle to provide a plurality of power transistor control waveforms from a single gate driver waveform that equalize power losses/temperatures or steady-state currents among the plurality of power transistors. The capacitors are charged to different voltages by diverting current from one transistor driver by disabling another power transistor driver at different respective times in response to measured transient or steady state current or temperature or other operational parameter.




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SOLID STATE POWER CONTROL

A solid state power control apparatus includes: (a) at least one IGBT and at least one FET, for supplying current to a load, and (b) a current controller for shutting off the IGBT and FET. The current controller is arranged to start shut off of the IGBT before it starts shut off of the FET. Further, the current controller is arranged to reduce current flow prior to start of the turn off of the IGBT and FET.




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POWER-DOMAIN OPTIMIZATION

One example discloses an apparatus for power management, including: a circuit having a first power-domain and a second power-domain; wherein the first and second power-domains include a set of operating parameter values; a circuit controller configured to incrementally sweep at least one of the operating parameter values of the first power-domain; a circuit profiler configured to derive a total power consumption profile of the circuit based on the circuit's response to the swept operating parameter value; wherein the circuit controller sets the operating parameter values for the first and second power-domains based on the total power consumption profile of the circuit.




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Apparatus for Multiple-Input Power Architecture for Electronic Circuitry and Associated Methods

An apparatus includes an integrated circuit (IC). The IC includes a power controller, which includes a regulator and a controller. The regulator receives a plurality of input voltages and provides a regulated output voltage. The controller controls the regulator to generate the regulated output voltage from the plurality of input voltages. The power controller provides power to a load integrated in the IC from a set of arbitrary input voltages. The set of arbitrary input voltages includes the plurality of input voltages.




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SYSTEMS AND METHODS FOR CONTROLLING A PLURALITY OF POWER SEMICONDUCTOR DEVICES

A power conversion system may include a plurality of power devices and a sensor operably coupled to at least one of the plurality of power devices and configured to detect a voltage, current, or electromagnetic signature signal associated with the plurality of power devices. The power converter may also include circuitry operably coupled to the plurality of power devices and the sensor. The circuitry may send a respective gate signal to each respective power device of the plurality of power devices, such that each respective gate signal is delayed by a respective compensation delay that is determined for the respective power device based on a respective time delay of the respective power device and a maximum time delay of the plurality of power devices.




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CLOCK SELECTION CIRCUIT AND POWER SUPPLY DEVICE EQUIPPED WITH THE SAME

To provide a clock selection circuit capable of reducing clock omission generated when switching from a state of being synchronized with a first clock to a second clock. The clock selection circuit is equipped with a clock detection circuit which detects a first clock to output a detected signal, a switch which outputs the first clock when the detected signal is at a first level and outputs a second clock when the detected signal is at a second level different from the first level, and a one-shot circuit which outputs a one-shot pulse in response to switching of the detected signal from the first level to the second level. The output of the switch and the output of the one-shot circuit are added to be outputted as an output clock.




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DEVICE AND METHOD FOR PRODUCING A DYNAMIC REFERENCE SIGNAL FOR A DRIVER CIRCUIT FOR A SEMICONDUCTOR POWER SWITCH

A device (442) for producing a dynamic reference signal (UREF) for a control circuit for a power semiconductor switch comprises a reference signal generator (442) for providing a dynamic reference signal (UREF), which has a stationary signal level after elapse of a predefined time following a switching process of the power semiconductor switch, a passive charging circuit (450) which is configured to increase a signal level of the dynamic reference signal in reaction to a switching of a control signal of the power semiconductor switch from an OFF state to ON state for at least one part of the predefined time above the stationary signal level, in order to produce the dynamic reference signal and an output (A) for tapping the dynamic reference signal (UREF).