"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 8167759 | Continuously variable transmission Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable accessory drives (CVAD). In one embodiment, a skew-based control system is adapted to facilitate a change in the ratio of a CVAD. In another embodiment... | 05/01/2012 |
| 7909723 | Adjusting device with a CVT planetary roller transmission An adjusting device including a CVT planetary roller transmission having two axially-spaced sun wheels that are rotatable about a common axis of rotation and at different speeds of rotation. Planet wheels contact and ride against peripheral surfaces of each of the s... | 03/22/2011 |
| 7731615 | 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... | 06/08/2010 |
| 7686729 | 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... | 03/30/2010 |
| 7670243 | Continuously variable transmission Embodiments of the inventions disclosed include a continuously variable transmission (CVT) where power is transmitted from a group of balls to a shaft via an idler. In one application, the CVT couples to a gearbox and to a generator of a wind turbine. Traction eleme... | 03/02/2010 |
| 7654928 | 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 ... | 02/02/2010 |
| 7608006 | Continuously variable transmission device A continuously variable transmission device has planetary members (23) in rolling contact with radially inner and outer races (12, 14; 36, 37) each comprising axially spaced relatively axially movable parts, and control means (18) for determinin... | 10/27/2009 |
| 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 |
| 7329202 | Toothless gear speed reducer A toothless gear speed reducer, which mainly includes an inclined plane cone drive gear, inclined plane conical driven gears and an inclined plane outer gear case drive ring. The toothless gear speed reducer overcomes the difficult problems existent in conventional ... | 02/12/2008 |
| 7322901 | 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... | 01/29/2008 |
| 7285068 | Continuously variable transmission and engine A continuously variable transmission features an inner ring and an outer ring. Each of the inner ring and the outer ring is split into a first portion and a second portion. At least two balls are positioned between the inner ring and the outer ring. The at least two... | 10/23/2007 |
| 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 |
| 7217219 | 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 ... | 05/15/2007 |
| 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 |
| 7204777 | 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 ... | 04/17/2007 |
| 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 |
| 7201693 | 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 |
| 7198583 | 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 ... | 04/03/2007 |
| 7198582 | 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 ... | 04/03/2007 |
| 7198584 | 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 ... | 04/03/2007 |
| 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 |
| 7160222 | 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 ... | 01/09/2007 |
| 7140999 | 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 ... | 11/28/2006 |
| 7112158 | 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 ... | 09/26/2006 |
| 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 |
| 7074154 | 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 ... | 07/11/2006 |
| 7074155 | 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 ... | 07/11/2006 |
| 7063640 | 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 ... | 06/20/2006 |
| 7036620 | 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... | 05/02/2006 |
| 7032914 | Continuously visible 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 ... | 04/25/2006 |
| 7018316 | Planetary traction drive with multiple inputs A traction drive has inner and outer rings and drive and idler rollers organized in two rows between the rings, with the drive rollers being in an inner row and the idler rollers being in an outer row. The drive rollers contact the inner ring and the idler rollers c... | 03/28/2006 |
| 7014591 | 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 ... | 03/21/2006 |
| 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 |
| 7011601 | 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 ... | 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 |
| 6942485 | Dental handpiece comprising torque-limiting means A dental handpiece is provided including a neck wherein balls are guided in transverse channels of an input shaft and are radially spaced apart by a support piece including a tapered part thrust by a spring. A linking ring is mounted on the end of the input shaft an... | 09/13/2005 |
| 6551210 | 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 aut... | 04/22/2003 |
| 6461268 | Continuously variable transmission device A continuously variable transmission device of the type having planetary members (25) in rolling contact with radially inner (23) and outer (26) races each comprising two axially spaced parts, with control means (30) for selectively varying the axial sepa... | 10/08/2002 |
| 6419608 | 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 aut... | 07/16/2002 |