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30634results about "Toothed gearings" patented technology
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Adapters for use between surgical handle assembly and surgical end effector
Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.
Owner:TYCO HEALTHCARE GRP LP
Power tool gear-train and torque overload clutch therefor
A power tool transmission is described in which an overload clutch mechanism is arranged to provide a relatively compact power tool. A torque adjustment dial is arranged between the visible portions of the motor housing and the gearbox, and the dial is coupled to a compression spring such that rotation of the dial cause the spring to be compressed or decompressed, thereby adjusting the torque at which the clutch overloads and ratchets. The compression spring is arranged at least partially between the motor and gearbox or gear train, in a space which conventional power tools do not utilized for this purpose. Thus, the dimensions of the power tool's transmission can be reduced with respect to conventional power tools. Furthermore, the space on the gearbox immediately behind a chuck can be used for another purpose other than accommodating the adjustment collar, as is the case with conventional power tools.
Owner:BLACK & DECKER INC
Planetary transmission
Proposed is a planetary transmission (8) comprising an internal gear (24), a sun gear (52) and a planet carrier (10), upon which at least one planet gear (20) is supported. The planetary transmission (8) possesses a clutch apparatus with a sliding sleeve (66), which in a first shift-position enables a direct connection between one of the shafts (44) driving the planetary transmission (8) and an output shaft (12) of the planetary transmission (8). In a second shift-position, the connection of the sliding sleeve (66) enables a change in the speed of rotation between the driving shaft (44) and the output shaft (12) of the planetary transmission (8). The planet gear (20) is so supported on the planet carrier (10), that in case of a shifting from a one shift-position into a respective other shift-position, the planet gear (20) on the planet carrier (20) becomes axially slidable.
Owner:ZF FRIEDRICHSHAFEN AG
Gear change mechanism
ActiveUS7303502B2Easy to participateSpace minimizationToothed gearingsInterengaging clutchesEngineeringDog clutch
A gear change mechanism coupling a pair of shafts employs a planetary gear set comprising a sun gear fast with a first of the shafts, planet gears in a planet carrier, and an annulus or ring gear, the latter being fixed. A selector hub slidable on the other of the shafts has sets of radially spaced dogs to engage with corresponding dogs on the planet carrier and sun gear respectively, so as to couple the shafts at two different ratios depending on the axial position of the selector hub. This results in a more axially compact package than conventional dog clutch gear changers. In an alternative embodiment a reversing mechanism is provided by fixing the planet carrier and engaging the selector hub with the sun gear or annulus depending on its axial position.
Owner:QINETIQ LTD
Switchable rotation drive device
InactiveUS20100179022A1Simple switching mechanismSmall sizeToothed gearingsFeeding apparatusLow speedSpur gear
Owner:HARMONIC INC
Thin-type gear motor and muscle force assisting device using thin-type gear motor
InactiveUS20160069449A1Small sizeReduce weightToothed gearingsSignalling system detailsMuscle forceGear wheel
In a thin-type gear motor and a muscle force assisting device that uses the thin-type gear motor in which high torque output is achieved, thinness and size and weight reduction are achieved, and further size reduction is achieved by an absolute sensor that is capable of detecting a rotation angle of an output shaft after speed reduction and is situated in a space that is conventionally not used.
Owner:COPAL ELECTRON CO LTD
Remote controlled device for tool rotating
InactiveUS7300431B2Minimal lossLess labour-consumingYielding couplingToothed gearingsRemote controlEngineering
A remote-controlled device for rotating tools, preferably medical tools, comprising a hollow body (1) which is embodied in the form of pivotally connected proximal and distal parts (2, 6) provided with a pair of adjacent end surfaces (5, 5′) which are angularly disposed with respect to the longitudinal axis of the body (1), and an axis (7) which is perpendicularly oriented with respect to the end surfaces (5, 5′) and provided with a central channel and a remote control mechanism. A shaft (10) arranged in the central channel of the device comprises driven, driving and transmitting sections (11, 12, 13) respectively, and operates as a link for transferring working rotational motion at a variable angle. The tilt angle between the distal part (6) and the longitudinal axis of the proximal part (2) can be equal to 180°.
Owner:DUBROVSKY ARKADY VENIAMINOVICH
Adapters for use between surgical handle assembly and surgical end effector
Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the end effector includes a first axially translatable drive member and a second axially translatable drive member, and wherein the surgical device includes a first rotatable drive shaft and a second rotatable drive shaft.
Owner:TYCO HEALTHCARE GRP LP
Circular saw
InactiveUS8739417B2Add settingsGuaranteed uptimeMetal sawing devicesToothed gearingsGear wheelCircular saw
A circular saw in which cutting speed of a saw blade is smoothly controlled. A speed change mechanism of a circular saw includes first and second rotating shafts disposed parallel to each other, and first and second gear trains having different gear ratios and each having a combination of a drive gear and a driven gear as one unit which are engaged with each other and transmit torque of the first rotating shaft to the second rotating shaft. A torque transmission path via the first gear train is defined as a first power transmission path and a torque transmission path via the second gear train is defined as a second power transmission path, and the transmission path is switched between the first power transmission path and the second power transmission path.
Owner:MAKITA CORP
Gear motor including reduction mechanism
ActiveUS9689466B2Thinness and size and weight reductionAvoid instabilityToothed gearingsMechanical energy handlingBall bearingReduction ratio
The present invention provides a reduction mechanism in which high torque output can he achieved, thinness and size and weight reduction can be achieved, and the number of teeth of a gear and reduction ratio can be freely set. In a gear motor that includes a reduction mechanism in which a planetary two-stage gear is arrayed between a sun gear of a planetary gear mechanism and an internal gear of a planetary gear mechanism, the reduction mechanism has at least a single planetary two-stage gear arrayed such as to be positioned between the sun gear and the internal gear and including a small gear or a large gear that meshes together with a large gear or a small gear of the planetary two-stage gear, and both end portions of the at least a single planetary two-stage gear are supported by ball bearings.
Owner:COPAL ELECTRON CO LTD
Transmission
InactiveUS7028570B2Easy to participateSmooth connectionTilling equipmentsToothed gearingsDrive wheelTransmitted power
A transmission for a working machine including a drive transmission mechanism and a working transmission mechanism operated by swinging a shift lever is provided. The drive transmission mechanism has a key-sliding transmission mechanism axially mounted on a drive shaft. The key-sliding transmission mechanism causes a selected one of a plurality of gears rotatably mounted on the drive shaft and the drive shaft to rotate together to transmit power to drive wheels.
Owner:HONDA MOTOR CO LTD
Electric power steering apparatus and method of assembling the same
ActiveUS8102138B2Large massDC motor speed/torque controlElement comparisonElectricityElectric power steering
A motor control apparatus includes a steering column having inserted therein a steering shaft to which steering torque is transmitted, a reduction gear box coupled to the steering shaft, and an electric motor that transmits a steering assisting force to the steering shaft via a reduction mechanism in the reduction gear box. The electric motor and its control unit including a control board mounted with a control circuit, are provided side by side in the reduction gear box. A connection terminal of the electric motor is electrically connected to the control unit directly. This minimizes a connection distance between the control unit and the electric motor.
Owner:NSK LTD
Adapter assembly and loading units for surgical stapling devices
A surgical apparatus is provided. The surgical apparatus includes a proximal body portion, a distal body portion selectively articulable relative to the proximal body portion at an articulation joint, and a first drive gear disposed within the distal body portion. The distal body portion has a diameter and a length. The length of the distal body portion is substantially the same as the diameter of the distal body portion.
Owner:COVIDIEN LP
Coupling system for a star gear train in a gas turbine engine
A star gear train for use in a gas turbine engine includes a sun gear, a ring gear, a plurality of star gears and a coupling system. The sun gear is rotatable by a shaft. The ring gear is secured to a ring gear shaft. Each of the plurality of star gears is rotatably mounted in a star carrier and meshes with the sun gear and the ring gear. The coupling system comprises a sun gear flexible coupling, a carrier flexible coupling and a deflection limiter. The sun gear flexible coupling connects the sun gear to the shaft. The carrier flexible coupling connects the carrier to a non-rotating mechanical ground. The deflection limiter is connected to the star carrier to limit excessive radial and circumferential displacement of the star gear train.
Owner:RTX CORP
System and method for minimizing energy consumption in hybrid vehicles
ActiveUS7013205B1Reduce energy costsMinimizing consumable fuel consumptionAuxillary drivesInternal combustion piston enginesElectricityFuel cells
The present invention provides a system and method relating to the operation of plug-in hybrid electric vehicles powered both by electricity from rechargeable batteries and by consumable fuel powered means, such as an internal combustion engine or a fuel cell. More particularly, the system and method of the claimed invention enable optimization of the energy cost associated with the operation of such plug-in hybrid electric vehicles, especially when the cost of recharging batteries from external electric power sources may be less than the cost of recharging batteries from the onboard consumable fuel powered means. To this end, the invention enables maximization of the use of electricity from external electric power sources and minimization of the use of electricity produced by the plug-in hybrid electric vehicle's onboard consumable fuel powered means, when the cost of recharging batteries from external electric power sources is less than the cost of recharging batteries from the onboard consumable fuel powered means.
Owner:SLINGSHOT IOT LLC
Two-mode, compound-split, hybrid electro-mechanical transmission having four fixed ratios
ActiveUS6953409B2Increase powerCost-effectivelyElectric propulsion mountingGas pressure propulsion mountingFixed ratioEngineering
A two-mode, compound-split, electra-mechanical transmission utilizes an input member for receiving power from an engine, and an output member for delivering power from the transmission. First and second motor / generators are operatively connected to an energy storage device through a control for interchanging electrical power among the storage device, the first motor / generator and the second motor / generator. The transmission employs three planetary gear sets. Each planetary gear arrangement utilizes first, second and third gear members. Moreover, one gear member of the first or second planetary gear set is operatively connected to the input member, and one gear member of the third planetary gear set is selectively connected to ground. A lock-up clutch selectively locks two of the planetary gear sets in a 1:1 ratio.
Owner:GM GLOBAL TECH OPERATIONS LLC
Epicyclic gear train integral sun gear coupling design
A coupling system for connecting a sun gear to a shaft within a planetary gear train, includes a sun gear coupling connecting the sun gear to the shaft. The sun gear coupling has at least one undulant flexible section joined to an inflexible spindle for accommodating misalignment between the sun gear and the shaft. The flexible section comprises a cylindrical ring having a diameter greater than the diameter of the spindle, and joined to the spindle by two longitudinally spaced apart diaphragms. The juncture between the diaphragms, the ring, and the spindle is curved in cross section on an outer side to improve flexibility and minimize stress concentrations, and the inner sides of the diaphragms are straight edges which result in a non-symmetric contour of the diaphragm walls.
Owner:RTX CORP
Flexible shaft for gas turbine engine
A shaft for a gas turbine engine is provided that includes a first shaft section, a second shaft section, a first flexible linkage, and a second flexible linkage. The first shaft section extends between a forward axial end and an aft axial end along a first axial centerline. The second shaft section extends between a forward axial end and an aft axial end along a second axial centerline. The first flexible linkage includes a bridge section connected between a first diaphragm and a second diaphragm. The first diaphragm is connected to the aft axial end of the first shaft section. The second diaphragm is connected to the forward axial end of the second shaft section. The second flexible linkage includes a diaphragm and a hub. The second flexible linkage diaphragm cantilevers radially outwardly from an inner radial end to an outer radial end, and is connected to the aft axial end of the second shaft section. The hub is connected to the outer radial end of the second flexible linkage diaphragm, and includes an engine shaft coupling connected to the hub.
Owner:RTX CORP
Providing answers to questions using multiple models to score candidate answers
ActiveUS20130007055A1Digital data information retrievalDigital data processing detailsRankingMultiple Models
A method, system and computer program product for generating answers to questions. In one embodiment, the method comprises receiving an input query; conducting a search to identify candidate answers to the input query, and producing a plurality of scores for each of the candidate answers. For each of the candidate answers, one, of a plurality of candidate ranking functions, is selected. This selected ranking function is applied to the each of the candidate answers to determine a ranking for the candidate answer based on the scores for that candidate answer. One or more of the candidate answers is selected, based on the rankings for the candidate answers, as one or more answers to the input query. In an embodiment, the ranking function selection is performed using information about the question. In an embodiment, the ranking function selection is performed using information about each answer.
Owner:INT BUSINESS MASCH CORP
Planetary-gear-type multiple-step transmission for vehicle
InactiveUS7101305B2Small axial lengthShorten the axial lengthToothed gearingsTransmission elementsGear wheelEngineering
Owner:TOYOTA JIDOSHA KK
Non-contact magnetic drive assembly with mechanical stop elements
ActiveUS20130095973A1Improve throughputMinimizing particulate contaminationVacuum evaporation coatingSemiconductor/solid-state device manufacturingMechanical driveVacuum deposition
A non-contact magnetic drive assembly with mechanical stop elements for a vacuum deposition system employing a lift-off process having a HULA configuration featuring a plurality of magnets coupled in an annular orientation to a central ring and an orbital ring, each magnet of the orbital ring becomes superposed with a magnet of the central ring as the orbital ring rotates, and a central drive component driving either the central ring, the orbital ring around the central ring or both simultaneously, the central drive component provides a rotational speed allowing non-contact, magnetic drive rotation of the orbital ring around the central ring until a difference between a magnetic drive torque of the superposed magnets and the rotational speed of the central drive component causes the superposed magnets to decouple enabling mechanical drive rotation by interactive contact between a plurality of central ring teeth and a plurality of orbital ring.
Owner:FERROTEC USA CORP
System, method and handheld controller for multi-player gaming
InactiveUS20060068917A1Precise positioningEasy to switchHybrid vehiclesElectric propulsion mountingGame playerLarge screen
Embodiments of the invention relate to systems and methods for multi-player gaming. Some embodiments relate to systems having an improved communications infrastructure and improved handheld game controllers, while other embodiments relate to improvements in handling large numbers of players in the multi-player game when played in a game arena with a single large display screen showing the multi-player game images. In one particular embodiment, a system is provided that has a game server controlling a display system to display the multi-player game on the large screen and a plurality of game controllers. Each game controller has a secondary display means for providing a secondary game display and input means for receiving player input. The system further comprises communication mans for enabling communication between the game server and each of the plurality of game controllers. The plurality of game controllers are located in proximity to the large display screen such that it is visible to game players manipulating the game controllers while playing the multi-player game.
Owner:TIMEPLAY
Real-time operating parameter selection in a vehicular transmission
Preferred operating points for a vehicle powertrain including an engine and a transmission are determined in accordance with a comprehensive operational mapping of input and output conditions and corresponding aggregate system losses corresponding to engine and transmission losses. In a hybrid transmission application, additional losses from motors and batteries are aggregated into the system losses and battery constraints are considered in determining preferred operating points. Preferred operating points are provided in one or more sets of minimized data for on-vehicle implementation.
Owner:GM GLOBAL TECH OPERATIONS LLC
Eight-speed transmissions with four planetary gear sets
ActiveUS7163484B2Shorten speedLow sun gearToothed gearingsTransmission elementsGear wheelInterconnection
Owner:GM GLOBAL TECH OPERATIONS LLC
Adapter direct drive with manual retraction, lockout and connection mechanisms
A surgical device adapter for coupling an end effector to a handle assembly is disclosed. The surgical device adapter includes: a housing; a drive mechanism disposed within the housing and couplable to the handle assembly and the end effector; and a drive coupling assembly coupled to the surgical device adapter and selectively couplable to the handle assembly, the drive coupling assembly including a retraction assembly selectively couplable to the drive mechanism such that rotation of the drive coupling assembly about a longitudinal axis defined by the surgical device adapter and relative to the housing actuates the drive mechanism.
Owner:TYCO HEALTHCARE GRP LP
Adapter assembly for interconnecting electromechanical surgical devices and surgical loading units, and surgical systems thereof
The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical loading units, and to surgical systems including hand held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand held electromechanical surgical devices.
Owner:TYCO HEALTHCARE GRP LP
Two clutch fixed-ratio exit control for multi-mode hybrid drive
ActiveUS20050080541A1Hybrid vehiclesDigital data processing detailsControl engineeringConfidence factor
An electrically variable transmission has a pair of clutches and a first mode when the first clutch is applied and the second clutch released, a second mode when the second clutch is applied and the first clutch released, and a fixed-ratio mode when both clutches are applied. Upshifts and downshifts out of fixed-ratio are accomplished in accordance with a control based upon shift confidence factors determined in accordance with proportional and derivative input speed error quantities. Additional authority limits are placed upon the shift confidence factors in accordance with output speed derivative quantities. Additional override downshift control is provided in accordance with additional input speed condition determinations.
Owner:ALLISON TRANSMISSION INC
Multi speed transmission
ActiveUS20060270516A1Reduce internal loadSlow internal speedToothed gearingsTransmission elementsGear wheelEngineering
A transmission is provided having four planetary gearsets, each having respective first, second, and third members, and a plurality of selectively engageable torque transmitting devices configured to selectively interconnect selected members of the four planetary gearsets for unitary rotation thereby to provide a plurality of forward speed ratios and at least one reverse speed ratio between an input member and an output member.
Owner:ALLISON TRANSMISSION INC
Medical devices, apparatuses, systems, and methods
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST
Apparatus and method to control transmission torque output during a gear-to-gear shift
A control system is provided to effect a method to control torque output from a two-mode, compound-split, electro-mechanical transmission during gear-to-gear shifting event when an off-going torque-transfer device is disengaged. It includes a computer program which controls transmission operation. A predetermined preferred torque output from the transmission device is determined. Torque output from torque-generative devices device is controlled. Torque transmitted across a selectively actuated torque transfer device is controlled, and limited based upon available battery power. Actuation of the oncoming torque-transfer device is preferably based upon a temperature of the device during the shifting event. The temperature during the shifting event is determined based upon a rotational speed of an input shaft to the transmission and an elapsed time to shift.
Owner:GM GLOBAL TECH OPERATIONS LLC
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