Abstract: A controlled actuator system for the actuation of a friction clutch comprising a screw drive assembly coaxial with an axis of the clutch composed of a collar and a screw fastened to a gearbox. The controlled actuator system having a friction plate rotatably fastened to control fingers of the clutch and coaxial with the clutch axis and a ball bearing assembly with a first race fastened to the collar and the axis of the bearing assembly being offset from the axis of the clutch. The collar is rotated by a motor. The friction plate and a second race of the bearing assembly are in frictional engagement.

Abstract: A dual clutch system having a first and a second friction disk and having a first and a second pressure plate is disclosed. The clutch actuator includes a first fixed ramp and second fixed ramp. Each of the first and the second fixed ramps are disposed to closely cooperate with a first bearing and a second bearing, respectively. A first moveable ramp and a second moveable ramp are disposed to closely cooperate with the first bearing and the second bearing respectively. A first release bearing is adapted to move with a first lever. The first release bearing is actuated by movement of the first moveable ramp. A second release bearing is adapted to move a second lever and the second release bearing is actuated by movement of the second moveable ramp. The first and the second levers are disposed to operatively bias the first and second pressure plates. A cover bearing is disposed to support movement of the first and second moveable ramps and the first and second release bearings.

Abstract: A transmission device includes a first element having rolling surfaces of revolution on a first axis, a second element having surfaces of revolution on a second axis intersecting the first axis at an acute angle equal to or slightly larger than an apex half-angle of each of a pair of generally conical surfaces on one of the elements. The rolling surfaces of both elements are symmetrically disposed axially on each side of the point of intersection. The second element is mounted such that its axis may perform conical movement about the axis of the other element. The second element may be allowed a degree of freedom to pivot about the point of intersection of the axes and in the plane containing the axes, so that during operation of the device, a gyroscopic couple of the body causes it to pivot so that the cone surfaces and their respective rolling surfaces come into rolling engagement at points one each side of the point of intersection of the axes.

Abstract: A transmission device includes a first element having rolling surfaces of revolution on a first axis, a second element having surfaces of revolution on a second axis intersecting the first axis at an acute angle equal to or slightly larger than an apex half-angle of each of a pair of generally conical surfaces on one of the elements. The rolling surfaces of both elements are symmetrically disposed axially on each side of the point of intersection. The second element is mounted such that its axis may perform conical movement about the axis of the other element. The second element may be allowed a degree of freedom to pivot about the point of intersection of the axes and in the plane containing the axes, so that during operation of the device, a gyroscopic couple of the body causes it to pivot so that the cone surfaces and their respective rolling surfaces come into rolling engagement at points one each side of the point of intersection of the axes.