Abstract: A shift system related to an improved continuously variable transmission (CVT) may include a power output assembly, a power input assembly, a collar assembly, and a connecting assembly to connect the power output assembly and power input assembly. The shift system is advantageous because it employs only gears and hydraulics for the transmission of power, which can be used in any torque scenario, from low-torque to heavy-duty scenarios such as large passenger automobiles, large trucks and heavy-duty machinery. Furthermore, there is no need to use additional energy to keep the transmission “tight enough” to engage and to prevent any “slipping,” and the overall efficiency of power transmission would be increased.

Abstract: In a preferred embodiment, the present invention provides a vehicle mounting bracket having an adjustable linkage mounting portion. The mounting bracket is fixed to the vehicle and the linkage system, while adjustment bolts on the mounting bracket allow the user to adjust the vertical height of linkage relative to the vehicle. Scalloped adjustment joints of the linkage allow a user to modify the joint angle while effectively increasing or decreasing the length of the linkage members.

Abstract: The transmission couples a cam shaft to an output shaft through a plurality of sets of specialized linkages.

Abstract: A hardgeared infinitely variable transmission (IVT) is provided in which at least one quick return mechanism is hardgeared to the rotating transmission input shaft. The quick return mechanisms convert the rotating motion of the transmission input shaft to a variable motion consisting of a near constant linear velocity portion and a rapid return portion for each cycle of input rotation. The near constant linear velocity portion of the motion of each quick return mechanism is selectively engaged to a conversion device which translates the motion to an output rotation. The input/output speed ratio is adjusted by varying the amount and direction of quick return mechanism motion which is selectively engaged to the conversion device. An infinite range of speed ratios can be produced, as well as output rotation in both forward and reverse directions relative to the input rotation.

Abstract: A power transmission apparatus transmits power from a rotatable cam to an output mechanism. A variable length lever, comprised of first and second lever sections, is pivoted to a lever support by a fulcrum. The lever sections telescopingly or otherwise interconnected to allow the over-all length of the lever to vary. In addition, the first lever section includes a cam following end portion which is drivenly coupled to the cam. Also, the second lever section has an output end portion which is pivoted to the output mechanism. The lever oscillates when the cam following end portion is driven by the cam and drives the output mechanism. A drive adjustment device moves the fulcrum relative to the cam following and output end portions of the first and second lever sections. This varies the throw of the output end portion with the zero drive being possible.

Abstract: A variable ratio drive mechanism comprises a reciprocable input member having a toothing, an output gear and an intermediate pivoted gear meshing with the toothing of said input member and said output gear to effect a driving connection between the input member and the output gear. An adjustment device is provided for selectably positioning the pivot of said intermediate gear whereby the distance between the pivot of the intermediate gear and the point of meshing engagement of the intermediate gear and the output gear can be infinitely varied. Preferably the pivot can be moved through a mid-position to positions either side of the mid-position.

Abstract: The present invention provides an infinitely variable rotary drive transmission having an input member and an output member rotatably mounted to a housing. A slide is linearly reciprocally mounted to the housing in a direction substantially radial with respect to the axis of the input member. The input member rotatably drives an articulated shaft which is connected to the slide by rods so that the input member reciprocally linearly drives the slide. The slide in turn is connected to and rotatably drives the output member through a pair of cooperating clutch assemblies. A bottle screw varies the degree of articulation of the articulated shaft which, in turn, varies the stroke of the slide per revolution of the input shaft to thereby vary the rotational speed of the output member. A shift assembly is operable to reverse the direction of rotation of the output member as desired.

Abstract: Cams carried by a power input shaft reciprocate a pair of yokes along perpendicular paths with the ends of each yoke coupled to a pair of oscillating arm members, all carried by a shift ring. Disposed for rectilinear travel between each pair of arm members is a gear plate. Rack gears on the gear plates impart rotation to driven gears of multiple drive assemblies, each of which assemblies includes a driving gear in mesh with an output shaft mounted gear. Rectilinear movement of the gear plates in one direction in response to arm oscillation imparts rotation to the driving gear of each drive assembly while a unidirectional clutch in each drive assembly permits overrunning of the driving gear during return travel of its associated gear plate. Infinite speed changes result from shifting the axes of arm oscillation toward or away from the gear plate ends by positioning of the arm carrying shift ring.

Abstract: An infinite speed transmission having aligned input and output shafts with the input shaft driving a pair of eccentrics each of which oscillates an arm which in turn drives a gear plate housing in a rectilinear manner. Each gear plate housing slidably carries a gear plate equipped with multiple gear racks which drive a pinion gear mounted on the transmission output shaft. Gear plate and pinion engagement for unidirectional rotation of the pinion gear is controlled by a cam which shifts the gear plates within their respective housing. Speed changes are effected by relocating the eccentric driven arms relative the gear plate housings driven by the arms. Repositioning of the cam results in the output shaft mounted pinion being driven in a reverse direction.