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Planetary gear transmission systems or components February patent applications/inventions, industry category 02/12

20120046138 - Power train for work vehicle: A power train for a tractor includes an engine power transmission shaft extending along the longitudinal direction of the vehicle body rearwardly of an engine, and a hydrostatic stepless speed changer unit (HST) configured to input power from the engine. A pump and a motor of the HST are juxtaposed... Agent: Kubota Corporation

20120046139 - Pressure oil lubrication of the gear wheels of a planetary gear set: A planetary gear set with a planet stage revolving in a gear set housing has a planet carrier which is connected in particular to a rotor and has planet web cheeks which are connected to one another by means of webs, and a plurality of planet gears which are mounted... Agent: Robert Bosch Gmbh

20120046140 - Planetary harmonic differential transmission: Described is a planetary harmonic differential transmission, comprised of a rigid externally-toothed inner sprocket, a rigid internally-toothed outer sprocket, a deformable belt that is toothed on both its internal and external faces, and a set of free-rotating planetary sprockets that are mounted on a rotating carrier cage and cause the... Agent:

20120046141 - Transmission test system: An automated system for testing a variety of transmissions and drive line gearbox components, and more particularly helicopter transmissions, for reliability, life expectancy, efficiency, and the like on a semi-automated basis. The system powers a unit under test with a pair of AC, variable speed drive motors connected to the... Agent: Redviking Group, LLC

20120046142 - Reduction gear unit and image forming apparatus incorporating same: A reduction gear unit incorporatable in an image forming apparatus includes planetary gear mechanisms each including a sun gear, an outer gear, planetary gears arranged between the outer gear and the sun gear at equal intervals and meshing with the sun gear and the outer gear, and a carrier rotatable... Agent:

20120040792 - Medium pressure control device of continuously variable transmission and continuously variable transmission: A medium pressure control device of a continuously variable transmission includes a pump unit capable of switching a discharge volume of an operating medium to a control system, which controls a contacting surface pressure of rotation members and a transmitting member and the transmission ratio by a pressure of the... Agent: Toyota Jidosha Kabushiki Kaisha

20120040793 - Electric tool: Timing of resetting the speed changing device is shifted relative to timing of stopping the electric motor by an OFF operation of the switch lever by a delay mechanism, so that the second stage internal gear is engaged with the first stage carrier after the rotation through inertia is stopped,... Agent: Makita Corporation

20120040794 - Gear scheme for infinitely variable transmission: A gear scheme for an infinitely variable transmission includes an input shaft, an output shaft, a variator, and a pair of planetary gearsets located beside the variator rather than in front of or behind the variator. The variator and the planetary gearsets are coupled between the input and output shafts.... Agent:

20120040795 - Method for removing or installing endless power transmitting element on a motorcycle assembly: An axle assembly for a motorcycle having a plurality of drive wheels. The axle assembly is configured to permit a user to replace an endless power-transmitting element without substantially disassembling the axle housing assembly. A method for forming the axle assembly and a method for replacing an endless power-transmitting element... Agent:

20120040796 - Multi-speed transaxle: A front wheel drive transmission is provided having a transmission input member, a transmission output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring... Agent: Gm Global Technology Operations LLC

20120040797 - Epicyclic gear system with semi-integrated flexpin assemblies: An epicyclic gear system (A) includes a sun gear (2), a ring gear (4) located around the sun gear (2) and planet pinions (6) located between the sun and ring gears (2,4). The planet pinions (6) rotate on a carrier (8) that includes flexpins (20) that are cantilevered from a... Agent: The Timken Company

20120035013 - Hybrid drive arrangement: In a hybrid drive arrangement having a power output, a primary drive machine with a primary drive shaft connecting the primary drive machine to a gear change set for establishing a form-fit connection between the primary drive machine and the power output, a secondary drive machine with a secondary drive... Agent:

20120035014 - Transmission systems: A transmission system includes an input (22), an output (34) and an epicyclic geartrain comprising first and second gearsets. The first gearset comprises a first sun gear (2) in mesh with a set of first planet gears (4), which are rotatably carried by a first planet carrier (6) and are... Agent:

20120035015 - Speed change control system for transmission of vehicle: A continuously variable transmission mechanism configured to increase and decrease speeds of a first and a second output discs simultaneously, and a geared transmission mechanism configured to change a speed change ratio stepwise are connected in series. The output discs are connected individually with intermediate shafts. The control system is... Agent: Toyota Jidosha Kabushiki Kaisha

20120035016 - Continuously variable transmission: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique... Agent: Fallbrook Technologies Inc.

20120028746 - Transmission for use in a motor and a pedal-powered vehicle and transmission method thereof: A transmission for use in an electrically-driven bicycle and/or a scooter is disclosed, in which the transmission coupled with a motor is embedded together with the motor in a hub of a rear or front wheel. According to the transmission and a transmission method, the power generated from the motor... Agent: Mbi Co., Ltd.

20120028747 - Vehicular power transmission device: Power generated by an engine is inputted to a carrier of a first planetary gear mechanism. Power generated by a motor is inputted to a sun gear of a second planetary gear mechanism. Power from a ring gear of the first planetary gear mechanism and power from a carrier of... Agent: Denso Corporation

20120028748 - Lubrication system for a planetary gear set: A planetary gear set for a transmission, the planetary gear set having a sun gear, a ring gear and a carrier assembly. The carrier assembly includes an annular first carrier member, at least one pinion pin, and at least one planet gear assembly. The first carrier member has at least... Agent: Gm Global Technology Operations, Inc.

20120028749 - Vehicle power transmission device: A power transmission apparatus for a vehicle is provided which is equipped with a power split device and a speed variator. The power transmission device is designed to set a speed ratio of speed of rotation of an output of a power source to speed of rotation of a driven... Agent: Nippon Soken, Inc.

20120028750 - Differential gear and vehicle provided with differential gear: A differential gear is structured such that a first differential case and a second differential case overlap one another in the radial direction such that a first joining portion of the first differential case, i.e., a portion of an outward flange that is on the outer peripheral side of a... Agent: Toyota Jidosha Kabushiki Kaisha

20120028752 - Flywheel module: A flywheel module comprises a coupling unit which has an input shaft and an output shaft. This coupling unit has a first coupling of which a first coupling half can be connected to a combustion engine and a second coupling half can be connected to a continuously variable transmission. The... Agent:

20120028751 - Shift mechanism for a planetary gear transmission: A shift mechanism for a transmission comprising a planetary gear transmission, a shift cam engaged with a planetary gear assembly in the planetary gear transmission, the shift cam having a shift cam stop, a rotatable cable ring connected to a moveable cable, the cable ring comprising a ramped portion, a... Agent:

20120028753 - Electric power tool: An electric power tool includes a cylindrical reducer case accommodating the speed reduction mechanism. The speed reduction mechanism includes a planetary gear train and a movable member which is axially slidable to be engaged with or disengaged from the planetary gear train. The electric power tool includes the reducer case... Agent: Panasonic Electric Works Power Tools Co., Ltd.

20120028754 - Liquid equalized gear system and method for using same: A carrier for use in a planetary gear system. The carrier has a plurality of openings or slots offset from a midline thereof. The carrier includes alignment mechanisms positioned in each of the plurality of openings or slots to substantially align each planet gear about the midline of the carrier.... Agent: General Electric Company

20120028755 - Pin for planetary gear system: A pin for coupling a planet gear to a carrier in a planetary gear system is disclosed. The pin includes a first end, a second end, and an outer surface extending between the first end and the second end. In some embodiments, the pin further includes means for modifying the... Agent: General Electric Company

20120028756 - Compliant carrier wall for improved gearbox load sharing: A planetary gear system and a method of fabricating same. The planetary gear system includes at least one planet gear, at least one planet pin receiving the at least one planet gear, and a carrier. The carrier itself includes at least one carrier opening for accommodating the at least planet... Agent: General Electric Company