| Patents for F16H 15 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members (3,956) |
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| 05/30/1990 | EP0370040A1 Continuously-variable-ratio transmissions of the toroidal race rolling traction type. |
| 05/29/1990 | US4929218 Continuously variable transmission |
| 05/29/1990 | US4928542 Continuously variable traction roller transmission |
| 05/15/1990 | US4924730 Transmission systems |
| 05/09/1990 | EP0366848A2 Stepless speed change device |
| 05/08/1990 | US4922788 Continuously variable transmission |
| 05/03/1990 | WO1990004729A1 Toroidal race rolling traction transmission units |
| 05/02/1990 | EP0365872A1 Infinitely variable traction roller transmission |
| 05/01/1990 | US4920827 Stepless speed change device |
| 04/25/1990 | EP0364435A1 Continuously variable differential. |
| 04/24/1990 | US4919002 Stepless speed change apparatus |
| 04/04/1990 | EP0362016A1 Change speed mechanism |
| 03/29/1990 | DE3914229A1 Automatic bevel gearing for motor vehicles - consists of two conical wheels as shaft and wheel |
| 03/27/1990 | US4911030 Traction roller transmission ratio control arrangement |
| 03/20/1990 | US4909092 Toroidal type infinitely variable transmission |
| 03/08/1990 | WO1990002277A1 Improvements in or relating to hydraulic control circuits for continuously-variable-ratio transmissions |
| 03/07/1990 | CN2054111U Frictional mechanical stepless speed variator |
| 03/06/1990 | US4905529 Friction roller type continuously variable transmission |
| 02/28/1990 | EP0356102A1 Hydraulic control circuits for continuously-variable-ratio transmissions |
| 02/28/1990 | EP0356015A1 Variable ratio transmission |
| 02/07/1990 | EP0354013A2 Ram units in transmissions of the toroidal race, rolling traction type |
| 01/31/1990 | EP0352280A1 Traction drive transmission system |
| 01/24/1990 | EP0351745A2 Variable friction ring transmission |
| 01/17/1990 | CN2051318U Rolling-bearing two-speed planetary speed-reducing machine |
| 01/17/1990 | CN2051317U Steel-ball-jointed speed-changing device |
| 01/16/1990 | US4893517 Continuously variable traction roller transmission |
| 01/10/1990 | EP0350167A1 Functional fluids |
| 01/09/1990 | US4893044 Rotor balancing |
| 01/03/1990 | CN2050505U Stageless speed variator with mechanical self-control and hand adjusting speed limit |
| 12/12/1989 | US4885949 Continuously variable or fixed ratio velocity transmission mechanism |
| 11/28/1989 | US4883075 Dual-rod cigarette manufacturing machine |
| 11/28/1989 | US4882948 Speed control assembly for nutating cone transmission |
| 11/08/1989 | EP0151634B1 Apparatus for changing speed using a differential band |
| 11/02/1989 | EP0339173A2 A stepless variable speed drive |
| 10/24/1989 | US4875894 Continuously variable transmission |
| 10/19/1989 | WO1989009898A1 Continuously variable transmissions |
| 10/10/1989 | US4872371 Automotive transmissions |
| 09/27/1989 | CN1035875A Flexible-link radial-sealing pressured adhesion transmission |
| 09/26/1989 | US4869130 Winder |
| 09/20/1989 | EP0333630A2 Continuously variable or fixed ratio velocity transmission mechanism |
| 09/14/1989 | DE3820517C1 Chain drive continuously variable by mechanical means |
| 09/13/1989 | EP0332414A2 Stepless speed change device |
| 08/30/1989 | EP0330447A1 Stepless speed change apparatus |
| 08/22/1989 | US4858484 Infinitely variable traction roller transmission |
| 08/15/1989 | US4856371 Traction drive transmission system |
| 08/03/1989 | DE3801597A1 Manual transmission arrangement on a double wobble-plate friction transmission |
| 07/25/1989 | US4850235 Variable speed tractive transmission |
| 07/25/1989 | US4850234 Auxiliary drive apparatus |
| 07/12/1989 | EP0323824A1 Tilting-rollers traction drive |
| 06/27/1989 | US4841792 Variable loading roller |
| 06/27/1989 | US4841791 Speed gearboxes |
| 06/14/1989 | EP0319698A1 Mechanical stepless speed change gear having friction wheels |
| 05/31/1989 | CN1033223A Rotor balancing |
| 05/24/1989 | EP0317056A1 Rotor balancing |
| 05/24/1989 | EP0192684B1 Friction wheel torque converter |
| 05/03/1989 | DE3835052A1 Frictional element gearing |
| 04/19/1989 | EP0311734A1 Epicycloidal speed variator with integrated frame and control screw with double projection hand wheel |
| 04/11/1989 | US4819494 Continuously variable transmission |
| 03/16/1989 | DE3808771A1 Rolling contact mechanism |
| 03/08/1989 | EP0306272A1 Continuously variable transmission |
| 03/01/1989 | EP0305110A2 Transmission systems |
| 02/28/1989 | CA1250452A1 Automatic torque converter drive with friction wheels |
| 02/16/1989 | DE3825860A1 Friction-wheel mechanism |
| 01/26/1989 | DE3723635A1 Mechanism for the infinite variation of the transmission ratio |
| 01/25/1989 | EP0300870A1 Elastic pressure ring for speed reducers or multipliers with at least one output, such as for accessory drives in vehicles |
| 01/12/1989 | WO1989000256A1 Continuously-variable-ratio transmissions of the toroidal race rolling traction type |
| 01/11/1989 | EP0298595A1 Transmission system |
| 01/11/1989 | CN2030676U Planetary steel balls transmission device |
| 12/15/1988 | WO1988009886A1 Continuously variable differential |
| 11/23/1988 | EP0210231A4 Radially oriented nutational traction drive transmission. |
| 11/09/1988 | EP0290400A1 Sepless seed change gear |
| 11/02/1988 | CN87102735A Programmed worm-and-ball transmission device |
| 10/26/1988 | CN87213725U Planet steel-ball stepless speed variator |
| 10/06/1988 | DE3804648A1 Continuously variable transmission |
| 09/28/1988 | EP0283855A1 Auxiliary drive apparatus |
| 09/22/1988 | WO1988007149A1 Traction drive transmission system |
| 08/16/1988 | CA1240536A1 Transmission for self-propelled working vehicle |
| 07/28/1988 | DE3700864A1 Variable-speed friction-wheel mechanism (circular mechanism) |
| 07/14/1988 | DE3644542A1 Friction-wheel mechanism |
| 07/12/1988 | US4756211 Continuously-variable ratio transmission for an automobile vehicle |
| 06/29/1988 | CN86210217U Energy-saving device with liquid uiscosity speed-governing |
| 06/22/1988 | EP0175772B1 Nutating traction drive transmission |
| 06/21/1988 | US4751854 Assembly for constituting a stepless speed change gear of friction-drive type |
| 06/15/1988 | EP0271343A1 Improvements in or relating to automotive transmissions |
| 05/24/1988 | US4745821 Speed ratio adjusting system for nutational traction drive transmissions |
| 05/17/1988 | US4744261 Ball coupled compound traction drive |
| 05/10/1988 | US4744032 Transmission ratio control apparatus of toroidal type infinitely variable transmission |
| 04/26/1988 | US4739850 Walking operator type agricultural machine having transmission system with disk type frictional stepless change speed apparatus |
| 04/19/1988 | US4738164 Centrifugal force adjusted infinitely variable drive apparatus for auxiliary equipment |
| 04/13/1988 | EP0263201A1 Conical drive |
| 04/12/1988 | US4736642 For the infinitely variable automatic transmission of force |
| 04/05/1988 | US4735430 Racing bicycle having a continuously variable traction drive |
| 03/30/1988 | EP0261480A2 Hydraulically controlled infinitely variable traction roller transmission |
| 03/21/1988 | EP0215918A4 Differential. |
| 03/15/1988 | US4730516 Drive apparatus for auxiliary equipment responsive to a charging generator speed representing signal |
| 03/15/1988 | US4730515 Drive apparatus for engine auxiliary equipment |
| 03/15/1988 | US4730504 Axial cam structure |
| 03/10/1988 | DE3630322A1 Continuously variable gear |
| 02/23/1988 | US4726244 Reversible continuously variable transmission |
| 02/23/1988 | US4726243 Continuously variable transmission |