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| Number | Title | Issue Date |
| 8033942 | Manufacture and use of parallel eccentric electro-mechanical actuator A parallel eccentric electro-mechanical actuator provides motive power and includes an electric prime mover that drives the reducer's pinion gear. This pinion drives minimum three star gears with stationary shaft bearings. Each shaft contains an eccentric which are ... | 10/11/2011 |
| 7938748 | Power transmission device and method of producing the same The power transmission device has an internally meshing planetary gear mechanism that has an input shaft, an eccentric body provided on the input shaft, an externally toothed gear eccentrically oscillating via the eccentric body, and an internally toothed gear with ... | 05/10/2011 |
| 7722494 | Self-contained rotary actuator A method for providing a compact rotary action torque within a larger system comprising a cross-roller bearing, generating a controllable electromagnetic field using a motor stator while interfacing the cross-roller bearing using a bull gear. The bull gear interface... | 05/25/2010 |
| 7431676 | Self-contained rotary actuator Self-contained rotary actuator provides motive power in automated mechanical systems and includes cross-roller bearing as a structural joint. Outer attachment shell rigidly interfaces the mechanical system and contains motor stator and internal bull gear. Internal b... | 10/07/2008 |
| 7331584 | Chuck with nutating gear reduction A tool chuck may include a chuck body that supports chuck jaws. The chuck body may define a longitudinal axis. A driven gear may be mounted for rotation on the chuck body. The rotational axis of the driven gear may be parallel to the longitudinal axis of the chuck b... | 02/19/2008 |
| 7325786 | Multi-speed drop leg mechanical jack for use with a trailer A mechanical jack that is used with trailers that has a functional combination of several working gears as well as a drop leg feature is disclosed. The mechanical jack has a gearbox having gears that not only have the capacity to handle a relatively heavy load, but ... | 02/05/2008 |
| 7303499 | Displacing device A device for adjusting two parts (2, 3) relative to one another, other than for a displacing device which is provided displacing a camshaft. The adjusting device is smooth and easy to operate, is self-locking, and ensures a backlash-free, continuous displacem... | 12/04/2007 |
| 7291081 | Variable-ratio transmission device A variable-ratio transmission device for use in connection with a machine, such as a vehicle, comprising a stepless speed change gear with a continuously variable-ratio over an extremely wide range of speeds. ... | 11/06/2007 |
| 7258643 | Device for actuating a reciprocating recovery means for underground fluid A device for actuating a reciprocating recovery apparatus for recovery of underground fluid. The actuating device has a centrally aligned input component, that transversely receives an output component through a central aperture, and is engaged with a driving mechan... | 08/21/2007 |
| 7217212 | Differential gear system having a stably-oriented orbiting gear A differential gear system employs stably-oriented orbiting gears to convey drive torque from a drive shaft differentially to a first wheel shaft and to a second wheel shaft. A portion of the drive torque is conveyed to the first wheel shaft, and the remainder of th... | 05/15/2007 |
| 7192375 | Device for varying the torque about a central member and method of use A device for increasing torque about a central member as a series of driver discs eccentrically rotate about a central shaft input member and alternatingly engage an output component via a low-friction, rolling engagement mechanism. Each disc is engaged with the oth... | 03/20/2007 |
| 7147582 | Power transmission device It is an object to obtain a power transmission device capable of allowing conflicting needs to coexist rationally and effectively in accordance with a driving situation. As powertransmitting mechanisms of a power transmission device, there are provided a plurality o... | 12/12/2006 |
| 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 |
| 7081062 | Standardized rotary actuator A rotary actuator incorporating a shell, an output plate and a cross-roller bearing retaining the output plate within the shell. A prime mover, disposed within the shell, exerts torque on a gear train within the shell. A pair of gears, disposed on either side of the... | 07/25/2006 |
| 7070533 | Internal teeth oscillation type inner gearing planetary gear system An internal teeth oscillating inner gearing planetary gear system, wherein installation space for piping, wiring, etc. can be easily secured in the central portion of the system according to a particular application. The gear system is configured such that rotation ... | 07/04/2006 |
| 7059996 | Planetary gear drive A planetary gear drive includes a thin, elastically resilient internal gear arranged within an annular housing, in which there is also a carrier that is rotatably supported by a pair of tapered roller bearings. A sun gear located concentrically within a cylindrical ... | 06/13/2006 |
| 7056253 | Internal teeth oscillating inner gearing planetary gear system An internal teeth oscillating inner gearing planetary gear system is provided with an input shaft, an eccentric gear rotated by the input shaft, the internal oscillating body oscillatingly rotated through the inner circumferential surface of the eccentric gear, and ... | 06/06/2006 |
| 6968751 | Axial piston machines This invention relates to internal combustion engines with cylinders arranged parallel to the main shaft and where reciprocating movements of the pistons are converted to rotation by means of a Z-crank mechanism and motion converter, or conversely to systems such as... | 11/29/2005 |
| 6960147 | Planet gear and use thereof A planetary gear comprising a central, rotatable input/output shaft (1a), an elastic outer ring (4) which when being elastically deformed encloses and presses at least three planet wheels (6, 12) in the form of rollers radially against a ... | 11/01/2005 |
| 6955623 | Single planet steering position planetary differential A single planet planetary differential including a shaft mechanism, a planet gear, disposed so as to be meshingly communicated with the shaft mechanism, a carrier device, the carrier device defining a carrier cavity for rotatingly containing the planet gear, a worm ... | 10/18/2005 |
| 6916230 | Abrasive belt and machining process associated therewith A process and device for machining by abrasive belt, on a part 1 with an axis of rotation, of a non-cylindrical bearing surface 2, two portions of the same running abrasive belt 14, which are spaced apart from each other in the longitudinal dire... | 07/12/2005 |
| 6743137 | Eccentric gear An eccentric gear for providing a speed difference between two machine elements which are rotatably journalled in relation to a reference member and individually rotatable around a symmetry axis. The gear includes two pairs of co-operating gear rims, one of which in... | 06/01/2004 |
| 6719658 | Support structure for planet gear in simple planetary gear mechanism and method for manufacturing the mechanism A simple planetary gear mechanism is provided with an automatic alignment function to support the planet gear to obtain a speed reducer having reduced backlash by a simple method. A planet gear is supported by a carrier pin that is in turn supported by a carrier. Th... | 04/13/2004 |
| 6648786 | Gearmotors The invention relates to a gear motor which is easy to install and which due to its especially flat design can be utilized in various ways also in narrow spaces. To this end, the gearmotor is provided on one side of a wheel-shaped housing base body with a... | 11/18/2003 |
| 6607461 | Electrically driven actuator A low-vibration and precise electrically driven actuator is provided. A disk is fixed to an input shaft, and a planetary gear is fixed to an output shaft. A circular recess is formed in the disk so as to be eccentric with respect to the input shaft. A rin... | 08/19/2003 |
| 6547687 | Gear device A dynamic balance is improved in an S-P-C type planetary gear mechanism. An input shaft is fixed to a disk, and an output shaft is fixed to a planetary gear. A circular recess is formed in the disk so as to be eccentric to the input shaft. A ring gear eng... | 04/15/2003 |
| 6520883 | Eccentric gear An eccentric gear for transferring a torque in one single step and at a high gear ratio, from a driving element to a driven element. In a stationary housing there is an outer gear ring which co-operates with an inner gear ring which in turn is co-rotative... | 02/18/2003 |
| 6261199 | Non-back drive power transmission A power transmission has a stationary internal gear surrounding an external gear having a diameter smaller than diameter of the internal gear. The internal gear is mounted on an eccentric joint joined to the power input shaft and is retained in engagement... | 07/17/2001 |
| 6113511 | Gearless transmission for speed reduction through rolling motion induced by wobbling motion A gearless transmission is provided for transmitting rotational velocity from an input shaft to an output shaft without gears. The transmission includes an input shaft connected to a wedge. Both the input shaft and the wedge have rotational axes. The rota... | 09/05/2000 |
| 5964676 | Device for the transmission of torque A device for transmitting a torque between two rotational elements (5, 2), includes an inner gear ring (24) that via only a few teeth engages an outer gear ring (23) being member of a cover (17) that is connected with one of the rotational elements (2). T... | 10/12/1999 |
| 5913744 | Eccentric gear An eccentric gear comprises two differently large gear rings (6, 7), of which an outer ring (6) has a certain number of inwardly directed teeth and an inner ring (7) has a smaller number of outwardly directed teeth, of which only a few engage with the out... | 06/22/1999 |
| 5893813 | Speed reducer A speed reducer having a fixed first member, a second member opposed to the first member, a pressing member and for inclining the second member and making it bear against the first member. The pressing member also presses the second member so that the bea... | 04/13/1999 |
| 5860887 | Reduction gear apparatus There is disclosed a reduction gear apparatus including a first member, a second member connected to the output shaft, a press member that rotates together with the input shaft to press part of the second member so as to bring the part into contact with t... | 01/19/1999 |
| 5823906 | Nutation motion generator A nutation motion generator which transforms linear motion into nutation motion. The device employs a spherical, four-bar linkage mechanism. Three four-bar linkage mechanisms are sandwiched between a stationary support surface and a drive plate and arrang... | 10/20/1998 |
| 5562560 | Speed reducing apparatus having wobbling rotation plate A speed-reducing apparatus of low mechanical noise is disclosed which includes a wobbling rotation plate. In the speed-reducing apparatus, a fixed plate and a wobbling rotation plate face each other at a rotation angle and a rotation phase difference and ... | 10/08/1996 |
| 5460018 | Vertical axis washer An automatic washer having an imperforate wash tub, a perforate wash basket disposed within the tub and rotatable about a vertical axis and a bottom plate disposed within the lower portion of the wash basket and mounted for wobbling motion. A motor is sel... | 10/24/1995 |
| 5443428 | Gearless mechanical transmission A gearless mechanical transmission includes a housing which supports a high-speed shaft and a low-speed shaft along a main rotational axis. The housing also includes a precession link therein fixed for rotation about the high-speed shaft at an angle skewe... | 08/22/1995 |
| 5140864 | Friction independent continuously variable transmission The face angle dependent force versus displacement properties of the double faced, asymmetrical inclined plane are extended to a three dimensional rotating machine which exhibits the properties of continuously variable torque versus speed ratios in both f... | 08/25/1992 |
| 4997413 | Robot wrist A robot wrist comprising a plurality of mutaully rotatable tubular parts arranged in series with each other and a tubular member (2), such as a tool attachment, the member (2) being rotatably mounted on one (1) of the parts and, via a tubular gear, being ... | 03/05/1991 |
| 4981051 | Planetary precession speed changing device The speed changing device incorporates a planet wheel (5) located in a housing (1) with provision for oscillating and a planet carrier in the form of a sleeve (7) rigidly attached to an arm (9) at a free end whereof there is fitted a roller (11). A second... | 01/01/1991 |
