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| Number | Title | Issue Date |
| 8109852 | Variable speed transmission with rotating and orbiting drive gears The present invention relates to transmission systems and changing gear ratios within power transmission systems. In particular, the present invention relates to a positive displacement variable speed transmission. The transmission includes one or more drive gears w... | 02/07/2012 |
| 7892129 | Variable speed transmission with variable orbital path The present invention relates to transmission systems and changing gear ratios within power transmission systems. In particular, the present invention relates to a positive displacement variable speed transmission. The transmission includes one or more drive gears w... | 02/22/2011 |
| 7261663 | 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 ... | 08/28/2007 |
| 7233488 | Display device having a retractable supporting unit A display device includes a display unit having a front surface for display, a rear surface formed with a vertical row of spaced-apart positioning hole units, and a bottom side. A supporting unit includes a first supporting rod that is connected pivotally to the rea... | 06/19/2007 |
| 7216516 | Wobble joint A wobble joint particularly useful for supporting a wash plate in a wash basket of an automatic washing appliance includes inner and outer races formed with mating part-spherical surfaces having common centers of curvature about a longitudinal axis of the joint. Ant... | 05/15/2007 |
| 7166052 | 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 ... | 01/23/2007 |
| 7047921 | Variable-valve-actuation apparatus for internal combustion engine A VVA apparatus includes a control shaft arranged rotatable in accordance with the engine operating conditions, an alteration mechanism for changing a lift amount and an operating angle of an engine valve in accordance with rotation of the control shaft, and a drive... | 05/23/2006 |
| 7011600 | 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... | 03/14/2006 |
| 6949049 | Continuously variable transmission A continuously variable transmission for use in rotationally or linearly powered machines and vehicles. The transmission provides a simple manual shifting method for the user. Further, the practical commercialization of traction roller transmissions requires improve... | 09/27/2005 |
| 6945903 | Continuously variable transmission A continuously variable transmission is disclosed for use in rotationally or linearly powered machines and vehicles. The single axle transmission provides a simple manual shifting method for the user. An additional embodiment is disclosed which shifts automatically ... | 09/20/2005 |
| 6371881 | Variable continuous transmission system The system is comprised of three sub-systems. The first sub-system has an actuation lever (P) which can rotate about an axis (E1) to displace excentrically the Second Sub-system with respect to the Third by a predetermined angle circumferentially about a ... | 04/16/2002 |
| 6296589 | Gear engaging stepless speed variator with orientational on-off device A gear engaging stepless speed variator having orientational ON-OFF properties of worm transmission for a gear transmission mechanism to realize ON-OFF orientation, so as to achieve stepless speed change of gear engagement. The variator has an orientation... | 10/02/2001 |
| 6062096 | Continuously variable transmission utilizing oscillating torque and one way drives A transmission utilizes oscillating torque to vary the mechanical power transmitted to a load. An arm assembly is rotatably coupled to a frame. At the ends of the arms are eccentric masses, rotatably coupled thereto. An input shaft rotates the masses abou... | 05/16/2000 |
| 6044718 | Continuously variable transmission utilizing oscillating torque and one way drives A transmission utilizes oscillating torque to vary the mechanical power transmitted to a load. An arm assembly is rotatably coupled to a frame. At the ends of the arms are eccentric masses, rotatably coupled thereto. An input shaft rotates the masses abou... | 04/04/2000 |
| 5679088 | Change gear system A change gear system comprises a driven case, a driving shaft and shifting means for shifting the drive shaft, and three sliding frames are provided in alignment in the driven case. Each sliding frame is provided with a pair of rack gears with teeth facin... | 10/21/1997 |
| 5308293 | Variable speed drive transmission A mechanical arrangement of multiple gears forming a transmission device for variable speed output and direction from a constant input source. The arrangement of multiple gears wherein the control of the output is determined by a selective incremental con... | 05/03/1994 |
| 5251507 | Non-circular gear pair In a non-circular gear pair comprising two non-circular gears maintained engaged, those gears have first and second intermeshing rotation parts in such a manner that the first intermeshing rotation part forms an intermeshing pitch curve with which the spe... | 10/12/1993 |
| 5201690 | Gear system for motion transformation A gear system for mechanically transforming motion on an infinitely variable basis as desired, having a unique arrangement of gear elements and clutches between the input and output shafts (1 and 6). A first set of gears (2) divides the motion put into th... | 04/13/1993 |
| 5129272 | Continuously variable transmission A variable speed transmission transmits power between an input and output in which a pinion gear, a rotor and a cam are mounted for relative rotation therebetween. First and second gear rack pairs have opposite facing toothed gear racks which are spaced a... | 07/14/1992 |
| 5116292 | Variable drive transmission A mechanical transmission device for selective gear speed and directional output from a constant input source. A plurality of planetary gears engageable on a central input gear can be selectively driven on their own axis or orbitally around the central in... | 05/26/1992 |
| 5108352 | Modified cranking mechanism for epicyclic transmission An epicyclic motion generating arrangement especially suitable for use as part of a continuously variable transmission is disclosed herein. This arrangement, in its preferred embodiment, includes a planetary assembly supporting four equally circumferentia... | 04/28/1992 |
| 5099706 | Variable speed transmission A variable speed transmission transmits power between an input and output in which a pinion gear, a rotor and a cam are mounted for relative rotation therebetween. First and second gear rack pairs have opposite facing toothed gear racks which are spaced a... | 03/31/1992 |
| 5055097 | Rotary differential drive An electro-mechanical rotary drive providing by electrical switching an output shaft speed change by substantially equal small steps. The drive includes an epicyclic differential transmission, with two or more members coupled individually to constant spee... | 10/08/1991 |
| 4969860 | Stepless transmission mechanism An stepless transmission mechanism comprises an input shaft rotatably supported by a case, an input frame secured to the input shaft so as to be rotated, an input planet shaft rotatably supported by the input frame, an output shaft rotatably supported by ... | 11/13/1990 |
| 4944718 | Angular velocity modulating device A angular velocity modulating device comprises: a primary angular velocity modulating means including a first non-circular gear which is an internal gear rotatably supported and a second non-circular gear which is an external gear mounted on a second rota... | 07/31/1990 |
| 4909101 | Continuously variable transmission A continuously variable transmission includes a power input driving a sun gear which in turn drives a plurality of planetary gears. Within each planetary gear is mounted an over-rolling clutch. The planet gear is free to rotate about its raceway in one di... | 03/20/1990 |
| 4873893 | Infinitely variable positive mechanical transmissions Disclosed herein are two embodiments of transmissions. In a first embodiment, a transmission is provided in which the input shaft and output shafts are mounted for rotation with respect to each other on a common shaft, and power is transmitted from the in... | 10/17/1989 |
| 4843899 | Gear drive with infinitely variable transmission ratio The gear drive or transmission comprises toothed elements whose radial spacing from a drive shaft can be selectively altered. There are two sets of such toothed elements whose aforementioned radial spacing can be infinitely varied in increments or sets. E... | 07/04/1989 |
| 4802376 | Variable phase and oscillatory drives A device for impulsively varying the timing of the rotation of a camshaft (1) relative to a driving sprocket wheel (14) mounted on a stubaxle (102) comprises followers (119,110) rotatable with respective follower shafts (103,104) mounted on the sprocket w... | 02/07/1989 |
| 4800768 | Power transmission apparatus A transmission means for transmitting power between input and output drives in which a rack and pinion gear assembly and a cam adjacent the pinion cooperate with the drives to provide a variable gear ratio therebetween. The gear assembly includes inner an... | 01/31/1989 |
| 4680985 | Continuously variable transmission with epicyclic constant mesh gearing A gear driven continuously variable transmission including an epicyclic cone in mesh with an axially slidable nonrotating ring gear. The cone and ring gear are enclosed in a housing. An input shaft is journaled in the housing. The cone revolves about the ... | 07/21/1987 |
| 4660427 | Continuously variable transmission A continuously variable transmission comprising a plurality of spokes extending radially from a spoke shaft upon which the spokes are mounted for circular movement about the spoke shaft. A driven ring is positioned relative to the spoke shaft to be engage... | 04/28/1987 |
| 4644828 | Stepless speed change device for bicycle A stepless speed change device for a bicycle comprises a plurality of planetary members journaled in a carrier fixed to a crankshaft of the bicycle in two parallel planes perpendicular to the crankshaft, planetary gears respectively fitted on the planetar... | 02/24/1987 |
| 4566353 | Rotary shaft control apparatus Apparatus for controlling a rotary shaft relative to a reference includes a strain wave drive having a specially shaped deformable ring gear for minimum stress. The wave generator part of the drive is normally caused to rotate with the input and output sh... | 01/28/1986 |
| 4515026 | Transmission A mechanical transmission with a variable speed ratio that generates two oscillatory rotary motions that may have the velocities thereof selectively increased or decreased by concurrently increasing or decreasing the effective lengths of a pair of crank a... | 05/07/1985 |
| 4452093 | Drive unit A positive planetary drive having zero backlash interconnects coaxial input and output shafts in a drive unit. A plurality of rollers orbiting about the input shaft is always entrapped in rolling contact with a plurality of wedges supported by the output ... | 06/05/1984 |
| 4277986 | Stepless, variable stroke drive having a non-rotating cam A stepless variable stroke drive particularly suitable for a bicycle transmission has a crank driven input element comprising a carrier housing journaled for rotation on a spindle. Mounted within the carrier, journaled on individual axles, radially spaced... | 07/14/1981 |
| 4181043 | Stepless variable stroke drive having a non-rotating cam A stepless variable stroke drive particularly suitable for a bicycle transmission has a crank driven input element comprising a carrier housing journaled for rotation on a spindle. Mounted within the carrier, journaled on individual axles, radially spaced... | 01/01/1980 |
| 4089228 | Motion generating mechanism A combined epicycloidal and harmonic motion generating mechanism which comprises a support frame mounting a prime mover coupled through a gear reducer to drive a primary rotary member about a fixed first axis on which a sun gear is concentrically disposed... | 05/16/1978 |
| 4055091 | Variable output transmission The present invention relates to variable output transmissions which utilize mechanical square wave generators. The square wave generator comprises a plurality of relatively rotatable driver gears mounted on a first common shaft, and a plurality of driven... | 10/25/1977 |
