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| Number | Title | Issue Date |
| 7431677 | Continuously variable planetary gear set A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and ... | 10/07/2008 |
| 7396209 | 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 minimu... | 07/08/2008 |
| 7393300 | Continuously variable planetary gear set A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and ... | 07/01/2008 |
| 7300393 | Automatic tool changer An automatic tool changer in which the load produced when a turret is rotation-driven is reduced, and abrasion in the balls and the like of a speed reducer, and mal-distribution of an axial pressing force are prevented. The speed reducer that drives the turret in th... | 11/27/2007 |
| 7288042 | 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 minimu... | 10/30/2007 |
| 7241245 | Gear-bearing differential speed transducer The inventive differential (57) Abstract: The inventive differential rotation speed transducer can be used for drives of general use machines and mechanisms. Said transducer relates to gears provided with intermediate members and comprises a wave generator an... | 07/10/2007 |
| 7217215 | Continuously variable planetary gear set A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and ... | 05/15/2007 |
| 7201694 | Continuously variable planetary gear set A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and ... | 04/10/2007 |
| 7159831 | Adjusting device An adjusting device (3) is suitable especially for use on a stand (1) for a surgical microscope (2). The adjusting device (3) makes it possible to move the surgical microscope (2) in a plane (9) perpendicular to the optical ... | 01/09/2007 |
| 7086981 | Transmission and constant speed accessory drive An infinitely variable speed ratio planetary ball transmission comprising planetary members in rolling contact with moveable inner and outer races and a constant speed accessory drive system utilizing the transmission. The transmission is infinitely variable between... | 08/08/2006 |
| 7000495 | Actuator device with intermediate rollers Actuator device comprising a support (2); a longitudinal drive rod (8), part of the rear end (9) of which is mounted and rotates inside the support, and of which a front end section (17) has an external screw thread (18) and on its... | 02/21/2006 |
| 6968756 | Multi-speed ratio apparatus to control shaft output A multi-speed ratio apparatus to control output for use, but not limited to, either as a module connected to a transmission or as a stand alone transmission. The multi-speed ratio apparatus is connected to a driving member (such as, for example, an engine, motor, or... | 11/29/2005 |
| 6780133 | Differential gear A differential gear includes a cylindrical power transmission member, two cam members accommodated in an inner space of the power transmission member, and a plurality of cam follower members. Each of the cam follower elements is fitted to a respective one of a plura... | 08/24/2004 |
| 6428028 | Wheel transmission for mobility vehicle A wheel transmission for mobility vehicle includes an input component capable movement at a first rate of motion for selectively driving an output component at either the first rate of motion or a second rate of motion. Operably connected between the inpu... | 08/06/2002 |
| 6383110 | Nested modified-cam speed converter A method and apparatus are provided for smoothing the transition in rolling element/cam type nested speed converters and as motorized in a compact pancake package. More specifically, the apparatus for translating motion from a first to a second velocity i... | 05/07/2002 |
| 6270442 | Multi-function speed converter Methods and apparatus for translating angular velocity and rotary motive force of an input drive to angular velocity and rotary motive force of an output drive, by providing a pair of devices rotatable at, relative to or about a common axis, and translati... | 08/07/2001 |
| 6159125 | Rolling element transmission A transmission includes a guideway (20) formed between a pair of tracks (22, 24) extending in a closed loop (21), and an endless train of rolling elements (X, Y, B) extending along the closed loop and rolling on the tracks and on each other. An input shaf... | 12/12/2000 |
| 6125711 | Multi-stage speed converter with idler Method and apparatus for achieving high torque and speed reduction in a compact and light-weight low parts-count speed converter apparatus featuring a floating ground element that both provides a moving ground to the first stage and acts as an input to a ... | 10/03/2000 |
| 6068573 | Pancake motor nested within cam speed converter A method and apparatus are provided for smoothing the ball transition in rolling element/cam type speed converters, with an alternative cable-run through the drive mechanism in either a single or multistage configuration.... | 05/30/2000 |
| 6039672 | Modified-cam speed converter A method and apparatus are provided for smoothing the ball transition in rolling element/cam type speed converters.... | 03/21/2000 |
| 5989145 | In-line speed converter with low parts counts An in-line speed converter assembly for converting input rotation to output rotation with a minimum number of parts, the in-line speed converter having utility in a dryer as well as other devices which require in-line speed conversion with a minimum numbe... | 11/23/1999 |
| 5954615 | Speed converter A method and apparatus are provided for translating the speed of a drive shaft which is driven at a second speed to the speed of a driven shaft at a second speed, by providing a drive cam, a driven cam, and at least one reciprocating transfer element driv... | 09/21/1999 |
| 5865071 | Differential gear setting differential limiting forces in response to rotational force transmission direction A differential gear is capable of differentially setting magnitudes of differential limiting forces depending on directions of rotational force transmission. A rotational force of the input-side rotary element is transmitted by way of rolling elements and... | 02/02/1999 |
| 5722910 | Speed converter with dwell Method and apparatus having a track of segments, ones of the segments having a non-varying profile, for generating a varying motion.... | 03/03/1998 |
| 5607370 | Variable output speed converter Methods and apparatus for translating angular velocity and rotary motive force of an input drive to angular velocity and rotary motive force of an output drive, by providing a pair of devices rotatable at, relative to or about a common axis, and translati... | 03/04/1997 |
| 5600999 | Speed converter with reversed output Method and apparatus for translating a rotary input to a rotary output, the apparatus having a primary cam for providing a rotary input in a first direction, a secondary cam having a plurality of cycles, each cycle subtending a cycle angle of θ, an inter... | 02/11/1997 |
| 5577423 | Differential gear A small, inexpensive, comparatively simple differential gear having reliable revolution difference restricting effects includes a rotary casing and a retainer having a common rotation axis. Torque is transmitted to a groove of a pair of rotary members via... | 11/26/1996 |
| 5533424 | Differential gear This invention provides a differential gear that permits a sure differential limitation effect to be obtained with a simple structure and that is both compact in size and low in price. That is, when a rotational difference occurs on a pair of output-side ... | 07/09/1996 |
| 5514045 | Speed converter with zero backlash Method and apparatus for reducing backlash in a speed converter using balls to interact between input and output cams. Preferred embodiment features two-point contact of balls by drive input and driven output cam tracks under axial preload.... | 05/07/1996 |
| 5423725 | Planetary-friction type speed change device A planetary-friction type speed change device includes: (a) a sun roller arranged to rotate about an axis in response to a motive rotation; (b) an outer ring substantially coaxial with the sun roller; (c) a plurality of planetary rolling elements disposed... | 06/13/1995 |
| 5397279 | High speed, radial ball, traction transmission The invention, an improved radial ball, traction transmission capable of bearing component speeds in excess of 20,000 RPM, connecting the output shaft of a motor or power source to the output shaft of the transmission for the purpose of transferring input... | 03/14/1995 |
| 5321988 | Oscillatory motion speed converter having drive and driven cams with balls and retainer Method and apparatus producing oscillatory motion output from a rotary input using balls to interact between input and output cams. Preferred embodiment features a speed reduction stage and an oscillation stage. Dwell periods can be provided as well as in... | 06/21/1994 |
| 5312306 | Speed converter A method and apparatus are provided for translating the speed of a drive shaft which is driven at a first speed to the speed of a driven shaft at a second speed, by providing a drive cam, a driven cam, and at least one reciprocating transfer element drive... | 05/17/1994 |
| 5236403 | Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio A driving hub for a vehicle, particularly a bicycle, comprising a hub axle, a hub sleeve enclosing the hub axle, a driver, a friction gear, a coupling arrangement as well as a control arrangement for infinitely variable adjustment of the transmission rati... | 08/17/1993 |
| 5183443 | Speed reducer A speed reducer has an input member, an output member provided coaxially with the input member and a cage disposed between opposite surfaces of the input member and the output member. The cage is formed with a plurality of pockets arranged circumferential... | 02/02/1993 |
| 5101685 | Limited slip differential using a continuous worm gear A differential gear that includes a cage in which there is disposed first and second rotatable cylinders positioned adjacent to one another, each rotatable cylinder having an elliptically-shaped groove in its surface and a sphere in each groove in contact... | 04/07/1992 |
| 5061228 | Continuously variable transmission This invention relates to a variable speed transmission for small high speed motors. The transmission comprises an input and an output shaft (11 and 21) the output shaft (21) being surrounded by two concentric annular plates (15, 16) being supported for r... | 10/29/1991 |
| 5027023 | Electric motor including reduction-gear and circuit The reduction gear (6) is fastened to the body (1) of an electric motor including a gear, and the motor stator is fastened to the removable electronics part (13) of the body. The motor rotor (7) is connected to the gear with an input shaft (15), the outpu... | 06/25/1991 |
| 4928543 | Electrically operated drum brake The electrically operated drum brake (10) comprises an electric motor assembly (80, 180) disposed between opposing ends (62, 72) of two brake shoes (12, 14), the electric motor assembly (80, 180) replacing both the hydraulic wheel cylinder and the parking... | 05/29/1990 |
| 4832630 | Marine trolling motor with traction drive A marine trolling propulsion system (2) has a lower submerged housing (4) including an electric motor (5) driving a propeller (6) through a reducing traction drive provided by rolling contact of threee balls (57-59) between split inner races (36 and 38) a... | 05/23/1989 |
