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| Number | Title | Issue Date |
| 8057351 | Planetary gear device with two sun gears having different diameters A planetary gear device having two sun gears with different diameters that engage with double planet gears having a first gear teeth area, which interacts with the fist sun gear, and a second gear teeth area, which interacts with the second sun gear. The double plan... | 11/15/2011 |
| 7651436 | Gear mechanism, planetary gear device, rotating bearing device, and magical planetary gear speed reducer A gear mechanism having extremely less backlash, capable of suppressing the rattling noise of gears, having a large loading resistance in the thrust direction, and capable of transmitting high torque by using the gears transmitting a force by the meshing of the gear... | 01/26/2010 |
| 7361118 | Gear mechanism and reduction planetary gear In a gear mechanism, inner gear teeth and outer gear teeth are formed of high-tooth. An engagement ratio of the inner and outer gear teeth is configured so as to be 2.0 or more, whereby a load can be transferred between the inner and outer teeth via a continuous gea... | 04/22/2008 |
| 7291088 | Method for effecting low-loss torque transmission in planetary gears The invention relates to a method for effecting torque transmission in a single-stage planetary gear comprising 2-6 planet units. The arrangement and the interaction of individual gear elements in conjunction with a method for mounting and adjusting them result in a... | 11/06/2007 |
| 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 |
| 7121973 | Methods and apparatus for minimizing backlash in a planetary gear mechanism A planetary gear system includes a planetary gear assembly having a first planetary gear, a second planetary gear rotatable relative to the first planetary gear, and a torquing mechanism. The torquing mechanism generates a torsional spring force of the planetary gea... | 10/17/2006 |
| 7112157 | Gear unit for the drive of a rotation tube A gear unit for the drive of a rotating tube is provided with a drive shaft and a power distributing gear unit stage that is configured as a helical gear unit with an intermediate shaft having mounted thereon two helical pinions. A load-summing gear unit stage with ... | 09/26/2006 |
| 7104608 | Device for adjusting the position of at least one movable part of a vehicle seat A device for adjusting the position of a movable part of a vehicle seat. One of two connection elements is secured to the movable part and to the other connection element for rotation about a first axis. A lever mechanism selectively either allows the one connection... | 09/12/2006 |
| 7100870 | Jam tolerant electromechanical actuation systems and methods of operation In a vehicle, having a fixed supporting structure and a load movable relative thereto, a jam tolerant actuating system, a method for controlling this system including: Locating a physical coupling/decoupling mechanism between the load and an actuator assembly as clo... | 09/05/2006 |
| 7076875 | Method of manufacturing compound helical planet gears having different leads A method is provided for manufacturing a compound helically toothed planet gear for a planetary gear set wherein the individual gear elements of the compound planet gear have different leads. The method identifies and utilizes the several factors affecting gear timi... | 07/18/2006 |
| 7033301 | Planet pinion carrier assembly for Ravigneaux gearset A gearset assembly includes a pinion carrier containing first, second and third long pinions pinion mutually spaced angularly about an axis, and supported for rotation on the carrier, and three pairs of short pinions, each supported for rotation on the carrier, the ... | 04/25/2006 |
| 6968598 | Seat back hinge fitting for a motor vehicle seat A seat back hinge fitting for a motor vehicle seat having a seat carrier and a seat back. The seat back hinge fitting has a lower arm that is rigidly fixed to the seat carrier, an upper arm that is rigidly fixed to the seat back and a forward tilting hinge for swift... | 11/29/2005 |
| 6966865 | High ratio, reduced size epicyclic gear transmission for rotary wing aircraft with improved safety and noise reduction A high ratio, double helical epicyclic gear transmission that is primarily intended for use in rotary wing aircraft employs double helical planet gears to obtain a reduction in size of the transmission, to improve the safety of the transmission, and to reduce the no... | 11/22/2005 |
| 6925684 | One step automatic hinge device and information terminal A hinge device of an information terminal, wherein the information terminal comprises a main body, a sub-body to be opened away from or closed to the main body while rotating about a hinge axis extending in one direction of the main body, and the hinge device for ro... | 08/09/2005 |
| 6905434 | Speed change mechanism of automatic transmission A first planetary gear unit is arranged to convert an input rotation from an input shaft to an output rotation whose speed is lower than that of the input rotation. A first unit including second and third planetary gear units is arranged between the first planetary ... | 06/14/2005 |
| 6783478 | Compound differential planetary gear assembly A compound differential planetary gear assembly (50) includes a sun gear (52), a plurality of planet gears (53) engaging the sun gear, a plurality of first ring gears (54), and a plurality of second ring gears (55). Each of the sec... | 08/31/2004 |
| 6688787 | Roller device and electronics using the roller device A roller device includes a motor and a speed reducer inside a cylindrical roller or arranged coaxially, and an electronic apparatus includes a printer using the roller device. This roller device comprises a motor (5) disposed on a cylindrical roller (2), ... | 02/10/2004 |
| 6632154 | Gear apparatus A gear train has a sun gear with a tooth count e, n (where n is a natural number of 2 or more) planetary gears having a first gear part with a tooth count z1 meshing with the sun gear and a second gear part with a tooth count z2, a f... | 10/14/2003 |
| 6550546 | Spindle lock and chipping mechanism for hammer drill A hammer drill has a motor which drives an axially displaceable intermediate gear mounted in an intermediate gear arrangement. An impact mechanism is formed by including interacting impact cams between either the intermediate gear and the housing, or the ... | 04/22/2003 |
| 6540641 | Speed reducer A mechanical paradox planetary speed reducer has an input shaft, a plurality of plantet gears, a pair of fixed internal sun gears, and a movable internal sun gear. The fixed internal sun gears are spaced from each other in the axial direction of the input... | 04/01/2003 |
| 6499549 | Drive axle for hybrid vehicle An electric drive axle for use in hybrid vehicles has an electric motor driving a compact gearbox. The gearbox includes a planetary reduction unit and a differential assembly. The planetary reduction unit has a sun gear driven by the electric motor, and c... | 12/31/2002 |
| 6378638 | Drive axle for hybrid vehicle An electric drive axle for use in hybrid vehicles has an electric motor driving a compact gearbox. The gearbox includes a planetary reduction unit and a differential assembly. The planetary reduction unit has a sun gear driven by the electric motor, and c... | 04/30/2002 |
| 6348022 | Planetary gear transmission apparatus A planetary gear transmission apparatus includes a sun gear, a first inner gear ring, a second inner gear ring and a planetary gear set constitutes a plurality of planetary gears. The first inner gear ring has increased tooth space, increased tooth root a... | 02/19/2002 |
| 6232673 | Windmill A wind-power plant with a rotor. The rotor's hub is accommodated in a roller bearing. The roller bearing is mounted on a support and connected to a planetary gear. The planetary gear comprises two stages, specifically an input stage and an output stage. T... | 05/15/2001 |
| 6220984 | Planetary gear The planetary gear according to the invention comprises a sun gear (2) connected to a driven central shaft (20), a ring gear (12), a group of first stepped planetary gears (8, 10) and a group of second stepped planetary gears (4, 6). The large step wheels... | 04/24/2001 |
| 6129648 | Planetary gear device A planetary gear device (20) comprises a front-stage side planetary gear mechanism (21) and a rear-stage side planetary gear mechanism (23). The rear-stage side planetary gear mechanism (23) comprises an internal gear (25), a carrier (29) rotatably suppor... | 10/10/2000 |
| 6099433 | Driving unit with adjustable torque A driving unit (1), comprising: a motor (10), a driven shaft (2) driven by the motor, and a transmission device (20) coupled between the motor and the output shaft and having one input shaft (21) and two rotational output members (22) and (23), wherein th... | 08/08/2000 |
| 5957804 | Planetary gear A planetary gear (1) in the form of a Wolfrom gear with a high transmission ratio. Such gears are preferentially used in handling gear engineering. In order to reduce the number of components required and improve the overall efficiency of the planetary ge... | 09/28/1999 |
| 5833569 | Geared drive unit for imparting motion to a load A drive train for transmitting torque produced by a motor to a load comprises a planetary gear arrangement mounted concentrically with respect to a tubular shaft. The planetary gear arrangement cooperates with a pair of driven gears which are also coaxial... | 11/10/1998 |
| 5791204 | Device for detecting the position of a moving member A position detecting device includes a ring gear that is disposed on an outer side of an output shaft of a motor and rotates with the rotation of the output shaft, fixed contact terminals fixed to a cover plate, and a rotary contact terminal provided on a... | 08/11/1998 |
| 5704870 | Angular adjustment mechanisms An angular adjustment mechanism for adjusting the angular displacement of a seat back relative to a seat cushion has first and second internal toothed ring gears, the first and second ring gears being interconnected and adapted to be secured to the seat b... | 01/06/1998 |
| 5655988 | Geared drive unit for imparting motion to a load A drive train for transmitting torque produced by a load comprises a planetary gear arrangement mounted concentrically with respect to a tubular shaft. The planetary gear arrangement cooperates with a pair of driven gears which are also coaxial with the t... | 08/12/1997 |
| 5632705 | Epicyclic roller gear including two rings having an internal profile and a rolling element capable of rolling on the inner side of the rings An epicyclic roller gear (100) has two rings (1 and 4) provided with an inner profile. One ring (1) is fixed and the other ring (4) is parallel or coaxial to the first ring (1) and is rotatably mounted with respect thereto. The number of teeth on the two ... | 05/27/1997 |
| 5593361 | Speed changer The object of the present invention is to provide a speed changer having a simple structure and great speed changing ratio. In the speed changer of the present invention, a movable gear section has a first pinion gear and a second pinion gear, which are c... | 01/14/1997 |
| 5588932 | Device for the setting of the mutual positions of pivotable elements The invention concerns a setting device for adjustment of the angular relative position of two components that are pivotable with respect to one another by means of planet wheels distributed along fear tracks formed is said pivotable components and arrang... | 12/31/1996 |
| 5518466 | Jam-tolerant rotary actuator A jam-tolerant rotary actuator 70 through the incorporation of shear lugs 84,92 formed on an inner input sun gear member 82 and on an inner movable output ring gear member 90 which correspond to recesses 88,96 formed in an outer input sun gear member 86 a... | 05/21/1996 |
| 5462498 | Device for relative angular setting of two units, preferably the inclination of a vehicle-seat back rest The invention concerns a device, preferably arranged for setting inclination of a backrest of a seat, primarily a vehicle seat, comprising components which are interconnected in pairs for mutual rotational movement and which are arranged to be associated ... | 10/31/1995 |
| 5409431 | Carrier-less, anti-backlash planetary drive system A carrier-less, anti-backlash planetary gear system that has an input sun gear, a force-balancing and planet-alignment "speeder" gear above the sun gear, a split ring gear that has a fixed lower ring gear coaxial with the sun gear and a rotating upper rin... | 04/25/1995 |
| 5240462 | Planetary reduction gear A planetary reduction gear comprising pairs of partial planetary gears, two partial internal gears and a sun gear or comprising pairs of partial planetary gears, two partial sun gears and an internal gear in which partial planetary gears mesh with partial... | 08/31/1993 |
| 5221239 | Automatic door operator with compound epicyclic gear drive system Door operator for commercial and domestic use with swing-mounted doors are disclosed. Each operator employs a variable-speed d.c. motor as prime mover, and a vertically oriented door-driving operator output shaft journalled in a transmission having a comp... | 06/22/1993 |
