Friction gear transmission systems or components
Patent class list (only not empty are listed)
Deeper subclasses:
| Class / Patent application number | Description | Number of patent applications / Date published |
|---|---|---|
| 476047000 | STEPLESS RATIO CHANGE | 41 |
| 476039000 | FRICTION GEAR INCLUDES IDLER ENGAGING FACING CONCAVE SURFACES | 34 |
| 476009000 | FLUID CONTROL | 28 |
| 476036000 | FRICTION GEAR IS BALL | 25 |
| 476067000 | FRICTION TRANSMISSION OR ELEMENT | 17 |
| 476011000 | ELECTRIC OR MAGNETIC CONTROL | 11 |
| 476008000 | WITH LUBRICATION | 10 |
| 476001000 | CONDITION RESPONSIVE RATIO CHANGE | 10 |
| 476027000 | PLURAL GEARING IN SERIES | 9 |
| 476061000 | CONDITION RESPONSIVE MEANS TO VARY CONTACT PRESSURE | 6 |
| 476007000 | WITH FRICTION ENHANCING FLUID | 6 |
| 476014000 | WITH TRANSMISSION COOLING OR HEATING MEANS | 2 |
| 20110015030 | CAM SELF-ADAPTIVE AUTOMATIC SPEED SHIFT HUB - A cam self-adaptive automatic speed shift hub comprises a left hub frame ( | 01-20-2011 |
| 20120244990 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes a continuously variable transmission mechanism that includes an input disk, an output disk, and planetary balls sandwiched between them and that steplessly changes a transmission ratio between the input disk and the output disk by tilting the planetary balls, wherein cooling performance of a cooling device for the continuously variable transmission mechanism is enhanced as the transmission ratio becomes larger than 1 or smaller than 1. | 09-27-2012 |
| 476065000 | SPRING URGES CONTACTING GEARS INTO ENGAGEMENT | 2 |
| 20110070997 | FRICTIONAL DRIVE DEVICE AND INVERTED PENDULUM TYPE VEHICLE USING THE SAME - In a frictional drive device comprising a pair of drive disks ( | 03-24-2011 |
| 20140315680 | DRIVING FORCE TRANSMISSION APPARATUS AND IMAGE FORMING APPARATUS USING THE SAME - When an abutting member is in contact with a driving force transmission member that engages with a driving member, an biasing member biases the driving force transmission member in a direction where the driving force transmission member is disengaged from the driving member. | 10-23-2014 |
| 476059000 | STEPPED RATIO CHANGE | 2 |
| 20110053732 | FRICTION TYPE TRANSMISSION DEVICE AND PRESSING FORCE CONTROL METHOD FOR FRICTION TYPE TRANSMISSION DEVICE - In a friction drive transmission apparatus arranged to transmit power by a frictional transmission force between two roller units pressed against each other, there is provided a pressing force imparting means to increase and decrease a pressing force imparted to a roller pair to vary the frictional transmission force between both roller units smoothly at the time of a shift. | 03-03-2011 |
| 20110245032 | DRIVE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A driving force transmission mechanism ( | 10-06-2011 |
| 476064000 | FRICTION GEAR ON SHAFT OF MOVABLY MOUNTED MOTOR | 1 |
| 20090011894 | Spindle drive - A spindle drive for a movable component includes a threaded spindle, which can be driven in rotation about a rotational axis by a reversible drive. A spindle nut is mounted nonrotatably on the spindle. By means of the spindle nut, a transmission element connected to the movable component can be driven axially with respect to the spindle axis. The spindle nut can be connected to and disconnected from the transmission element by a connecting device. A nut position sensor detects the position of the spindle nut and a component sensor detects the axial position of the transmission element. If it is concluded that there is plausibility between the signals of the nut position sensor and the component sensor, the spindle nut can be connected to the transmission element by the connecting device. | 01-08-2009 |