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| Number | Title | Issue Date |
| 7303497 | Dual-input differential planetary gear transmission A dual planetary gear transmission having two planetary gear sets rotatably mounted on a common grounded axle wherein sun gears span both planetary gear sets providing a system for gear movement to be transferred between both gear sets whereby additional input allow... | 12/04/2007 |
| 7297087 | Micro gear system operating according to the strain wave gear principle with hollow shafts A micro gear system, operating according to the principle of a strain wave gear system, a Wolfrom gear system, or a similar planetary gear system comprises at least one sun wheel (14) and at least two planet wheels (16) meshing with the sun wheel (1... | 11/20/2007 |
| 7201700 | Geared rotary actuators A geared rotary actuator including first and second adjacent, axially aligned actuator slices, each slice having an epicyclic-type reduction gear train including a rotatable input sun gear, a planetary gear assembly driven by the sun gear, and first and second outpu... | 04/10/2007 |
| 7070402 | Integrated speed reducer and pump assembly An integrated speed reducer and gerotor pump is disclosed. The device comprises a motor, a speed reducer, and a gerotor pump. The motor provides torque at an elevated speed. The speed reducer is coupled with the motor and converts the torque at an elevated speed int... | 07/04/2006 |
| 6949043 | Eccentric drive reduction gear for a transmission component winding drum An eccentric reduction gear for a vehicle window winder system has a ring gear, a planet pinion that is eccentric relative to the ring gear, a drive component that drives the planet pinion and the ring gear so that they roll relative to each other, and a winding dru... | 09/27/2005 |
| 6039668 | Planet gear for high revolutions A planet gear has an input axle (1a), an outer ring (4) which presses planet wheels (6) radially against a central sun axle (2), the planet wheels (6) being rotatably mounted on stays (7), the diameters of which are smaller than the holes in the planet wh... | 03/21/2000 |
| 5931759 | Friction-roller speed changer A friction-roller speed changer has three intermediate rollers (12a, 12b, 12c). Two rollers (12a, 12b) of which act as a wedge roller and can be moved into the narrower area of an annular space (10) by the transmission of power, wherein during power trans... | 08/03/1999 |
| 5507703 | Differential drive A differential drive having a differential carrier rotatably supported in a differential housing is disclosed. Two axle shaft gears are rotatably held in cylindrical bores in the differential carrier and are arranged coaxially relative to one another. A p... | 04/16/1996 |
| 5232417 | Differential drive A differential drive has a drive housing in which a drivable differential carrier (1) is rotatably supported. The differential carrier accommodates straight-toothed and helically toothed output gears (4, 5). The gears (4, 5) are connected to each other vi... | 08/03/1993 |
| 5142989 | Propelling mechanism and traveling device propelled thereby A propelling mechanism for traveling through piping comprises: a motive power device; a plurality of sun gears driven in rotation by the motive power device; at least two planet gears meshed with each one of the sun gears and rotatably supported at specif... | 09/01/1992 |
| 4986802 | Planetary gear box for a jack An improved planetary gear box for a heavy duty truck jack which includes a planetary gear box that provides high torque and in-line input and output shafts and a high gear ratio and a compact package which does not require many precision machine parts. T... | 01/22/1991 |
| 4932613 | Rotary hinge actuator A rotary hinge actuator, for instance for rotating a wing flap relative to a wing in an aircraft, has a sun gear, several spindle gears around the sun gear and several annular gear sleeves around the sun gear and spindle gears. Each spindle gear has secti... | 06/12/1990 |
| 4873894 | Balanced free-planet drive mechanism A balanced free-planet drive mechanism includes a reaction ring gear, an output ring gear, an input sun gear arranged along a central axis, and a plurality of floating planet elements individually having a first planet gear engaged with the sun gear, a se... | 10/17/1989 |
| 4843912 | Variable stiffness support ring An improved support ring (50) is disclosed for supporting a plurality of planetary gear sets (20) which are driven by a centrally disposed input shaft (12) having a sun gear (16) attached thereto in which the planetary gear sets are subject to radially in... | 07/04/1989 |
| 4760964 | Actuator system for jet nozzle flap In order to enhance performance of an aircraft while at the same time utilizing redundant aircraft hydraulic power in an efficient manner, an actuator system for a nozzle flap of an aircraft engine is provided. The actuator system includes a power drive u... | 08/02/1988 |
| 4742730 | Failsafe rotary actuator A failsafe rotary actuator having irreversible dual load paths between input and output members thereof is comprised of an input shaft journalled for rotation within a housing for the actuator, first and second sun gears secured in spaced relationship alo... | 05/10/1988 |
| 4252034 | Free-floating planetary transmission with reversible output A planetary transmission having free-floating compound planetary gear elements in which two of the planet gears of each planetary element mesh with a pair of gears co-axial with the transmission axis. The transmission also includes selectively operable cl... | 02/24/1981 |
| 4132131 | Free-floating planetary transmission with contra-rotating dual output shafts A transmission having free-floating, compound, planetary gears in which the net moment tending to tilt each compound planetary gear out of its radial plane is substantially zero and in which said transmission provides contra-rotating dual output shafts an... | 01/02/1979 |
