Planetary gear transmission systems or components inventions 02/07

20070042852 - Electrically variable transmission having three planetary gear sets with two fixed interconnections: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and five selectable torque-transfer devices. The selectable torque transfer devices are engaged in combinations of... Agent: General Motors Corporation Legal Staff

20070042853 - Power system of hybrid vehicles: A power system of a hybrid vehicle having a decreased total length includes a first planetary gear set and a generator disposed on a first input shaft, which receives rotation power of an engine, and a motor disposed on an axis parallel to the first input shaft. An output power... Agent: Morgan, Lewis & Bockius LLP (sf)

20070042854 - Geared wheel motor design: The present invention is a compound planetary gear system which has a moveable sun gear and a lockable sun gear to change the gear ratio between a high gear ratio and a pseudo 1:1 slipping ratio. The system makes use of a ratchet and pawl mechanism to provide a safety... Agent: Borealis Technical Limited

20070042855 - External gear of planetary reduction gear having cycloid tooth and method of machining the same: Provided is an external gear of a planetary reduction gear having a cycloid tooth, a tooth part of the external gear having a cycloid tooth has a tooth apex protruded from a distal end, a tooth valley having a groove, and contact parts curvedly sloped between the tooth apex and... Agent: Birch Stewart Kolasch & Birch

20070042856 - Continuously variable ratio transmission system: A multiple-regime continuously variable ratio transmission system has a system input shaft (I), a system output shaft (O) and a continuously variable ratio transmission unit (variator) connected to the system input shaft and having a variator output shaft. A first mixing epicyclec gear train (P1) having inputs drivably connected to... Agent: Brooks Kushman P.C.

20070042857 - Geared-neutral bidirectional positively infinitely variable rotary motion transmission: A gear-driven repositionable variable orbital disk gear driven about its user-actuated variable circular track to induce a concurrent varying second swing motion which is isolated, extracted, and cycled through the mechanism as an additional rotational product for the production of stepless infinitely variable rotational motion output is described. The gear... Agent: Paul Kay Coronel Rrcc / #a0076217 / Je-08

20070042858 - Electrically variable transmission having three planetary gear sets and two fixed interconnections and a stationary interconnection: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and up to five selectable torque-transfer devices, and possibly a dog clutch. The selectable torque... Agent: General Motors Corporation Legal Staff

20070042859 - Planetary gear train: Disclosed is a planetary gear train (8) comprising an internal gear (24), a sun gear (52), a planet carrier (10) which is provided with planet shafts (18) and on which at least one planetary gear (20) is mounted, and a shifting device with a sliding sleeve (66). Said shifting device... Agent: Davis & Bujold, P.l.l.c.

20070042860 - Tapered gear tooth apparatus and method: The present invention provides a tapered gear tooth apparatus and method. According to a preferred embodiment, the apparatus includes a generally annular internal gear having a plurality of internal gear teeth. The internal gear teeth define a generally tapered cross section. The apparatus further includes a generally annular external gear... Agent: General Motors Corporation Legal Staff

20070037650 - Electric drive apparatus: An electric drive apparatus includes at least one electric motor having a rotor and at least two driven shafts which are disposed in coaxial relationship and driven at different rotation speed during operation of the electric motor. The driven shafts are constructed for separate connection to the rotor. Interposed between... Agent: Henry M Feiereisen, LLC

20070037651 - Continuously variable transmission: The present invention is directed toward overcoming these and other problems associated with using a hydrostatic unit in a continuously variable transmission. The present invention allows for a “mechanical neutral,” as well as a more efficient reverse configuration to be achieved. The present invention has a dual sun planetary gearset,... Agent: Patent Docket Administrator Borgwarner Inc.

20070037652 - Bearing unit and rotary drive using the same: A bearing unit (90) for rotatably supporting a shaft (100) comprises a seamless holding member (120) with a gap allowing a shaft to run through and extend to the outside, a bearing (130) arranged in the inside of the holding member to rotatably support the shaft so as to make... Agent: Rader Fishman & Grauer PLLC

20070037653 - Hydrostatic transaxle having axial piston motor and method for manufacturing transaxles: A modular hydrostatic transaxle includes an axle module removably connected to a hydrostatic transmission module. The axle module includes a differential connected to a reduction gear train and disposed in an axle casing. A pair of axles are connected to the differential and supported within the axle casing. The hydrostatic... Agent: Baker & Daniels LLP 111 E. Wayne Street

20070037654 - Differential with electromagnetic clutch assembly: A differential assembly includes a case, a pair of pinion gears, a pair of side gears and an electrically operable coupling including an electromagnet. The coupling selectively drivingly interconnects one of the side gears and the case. The electromagnet of the coupling is axially moveable within the case to selectively... Agent: Harness, Dickey & Pierce, P.L.C

20070037655 - Lockable differential: A lockable differential has one positive-fit clutch (12) actuatable in the opening and closing directions by displacement of a sliding sleeve (4), the sliding sleeve (4) being actuatable by a co-axially disposed piston (15).... Agent: Davis & Bujold, P.l.l.c.

20070037656 - Differential assembly: An axle assembly that includes a differential casing, which is rotatable about an axis, a pair of side gears that are disposed within the differential casing, a spacer and a cross pin. The spacer is disposed between the side gears. The cross pin is fixed to the differential casing and... Agent: Harness, Dickey & Pierce, P.L.C

20070037657 - Multiple-speed automatic transmission: An automatic transmission includes a first power path producing a first ratio of a speed of the input and a speed of a first power path output; a second power path producing a second ratio of a speed of the input and a speed of the second power path output,... Agent: Macmillan, Sobanski & Todd, LLC

20070037658 - Multiple-speed automatic transmission having a two-speed input and a simpson gearset: A multi-speed automatic transmission includes an input and output, first, second and three planetary gear units, each gear unit including a sun gear, a ring gear, planet pinions meshing with the sun gear and the ring gear, and a carrier rotatably supporting the planet pinions. A first brake alternately holds... Agent: Macmillan, Sobanski & Todd, LLC

20070037659 - Geared torque converter with multi-plate clutches and planetary gearset: The present invention is a device for transferring power flow from a multidisplacement engine to a transmission. The device includes an enclosed housing having a first shell on the engine side, a second shell on the transmission side, with the housing at least partially filled with oil and connected to... Agent: Simpson & Simpson, PLLC

20070032328 - Electrically variable transmission having three planetary gear sets and clutched input: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, five selectable torque-transfer devices (two clutches and three brakes), and possibly a dog clutch. The... Agent: General Motors Corporation Legal Staff

20070032327 - Electrically variable transmission having two or three planetary gear sets with two or three fixed interconnections: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including two or three differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and four or five selectable torque-transfer devices. The selectable torque transfer devices are engaged singly or... Agent: General Motors Corporation Legal Staff

20070032329 - Hydraulic control circuit for automatic transmission of vehicle: A hydraulic control circuit for an automatic transmission of a vehicle, the transmission including hydraulically operated coupling devices at least one of which is selectively operated to establish a corresponding one of speed steps, the hydraulic control circuit including electromagnetic valve devices which output respective hydraulic pressures to operate the... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070032330 - Drive unit for a vehicle seat: In a drive unit (10) for vehicle seat, in particular for a motor vehicle seat, having at least one motor (12) and at least one gear stage (14) provided on the output side of the motor (12), the gear stage (14) is designed as a switch gear, so that two... Agent: Womble Carlyle Sandridge & Rice, PLLC

20070032331 - Power divider lubrication in tandem drive axles: A drive axle assembly is provided that improves lubrication of the bearing surfaces of the inter-axle differential gears, the side gears meshed with the differential gears, and the input and output shafts. Lubricant splashed from the ring gear is collected and is then distributed by a bearing supporting the output... Agent: Dykema Gossett PLLC Suite 300

20070032332 - Angular position adjusting mechanism: In an angular position adjusting apparatus, tooth profiles of an internal gear 31 and an external gear 21 are formed according to loop shapes 74a and 84a of predetermined trochoid curves 74 and 84.... Agent: Buchanan, Ingersoll & Rooney PC

20070032333 - Integrated transaxle power take off: A four wheel drive vehicle driveline includes a primary driveline having a prime mover on the transaxle and half shafts at the front of the vehicle and a secondary driveline including a prop shaft, friction clutch assembly, differential and half shafts at the rear of the vehicle. A bevel gear... Agent: Borgwarner Inc.

20070032334 - Gear driven direct differential cross: A drive axle assembly is provided in which the differential cross-shaft supporting the differential gears is driven directly by the ring gear. The assembly reduces loading on the differential case to which the ring gear is attached thereby enabling the use of low capacity joints between the ring gear and... Agent: Dykema Gossett PLLC

20070032335 - Friction apply device of an automatic transmission: A second clutch piston formed of a plurality of members including a cylindrical cylinder member, a disc-shaped bottom plate member that fits in one end portion of that cylinder member, and a snap ring, has a plurality of long positioning protrusions provided on an inner peripheral surface of the cylinder... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070032337 - Drive unit of an adjuster of a vehicle seat: In a drive unit (10) of an adjuster (80) of a vehicle seat, in particular of a motor vehicle seat, having at least one particularly electronically commutated motor (12) and at least one gear stage (14) provided on the output side of the motor (12), the gear stage (14) is... Agent: Womble Carlyle Sandridge & Rice, PLLC

20070032336 - Planetary gear: A planetary transmission which has a drive shaft, an axial bearing, an internal gear, an axially displaceable sliding collar and a lubrication circuit and an output shaft which is mounted the transmission housing by an external bearing and an internal bearing. The housing is provided with an oil intake (13)... Agent: Davis & Bujold, P.l.l.c.

20070026989 - Drive system for a machine: A machine, including a hydraulic pump and one or more hydraulic implements connected to the hydraulic pump. The machine may also include a hydraulic motor connected to the hydraulic pump and one or more propulsion devices. Additionally, the machine may include drive-system controls operable to selectively cause the hydraulic motor... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20070026990 - Oil pressure control apparatus for automatic transmission: In an oil pressure control apparatus for an automatic transmission, a specific combination of ON and OFF states of shift valves is assigned to an automatic shift pattern for operating solenoid valves for each shift stage of an automatic shift mode. One of other combinations of the ON and OFF... Agent: Buchanan, Ingersoll & Rooney PC

20070026991 - Axle assembly with electrically-driven differential: An axle assembly for a motor vehicle. The assembly comprises a carrier housing and a differentially assembly rotatably mounted to the carrier housing. A ring gear is fixed to the differential assembly. A first pinion is in meshing engagement with the ring gear. The first pinion is driven by a... Agent: Harness, Dickey & Pierce, P.L.C

20070026992 - Gearless locking differential: A gearless locking differential includes clutch housings containing V-shaped slots that cooperate with a cross pin to disconnect from the differential drive shaft an overrunning driven shaft, characterized in that the wall surfaces that define the V-slots extend parallel with the axis of rotation of the differential housing, and the... Agent: Laubscher & Laubscher, P.C.