Matches 1 - 31 out of 31
Match Document Document Title
7563185 Infinitely variable transmission  
An IVT machine includes an input shaft, a drive wheel on the input shaft, an output shaft, a ratio changing device which is mounted on the output shaft, an endless belt which passes over the drive...
7077771 Automatic stepless speed-changing mechanism  
An automatic stepless speed-changing mechanism mainly includes a pivotal shaft, a plurality of mounting discs mounted along the pivotal shaft and provided with radially extended guide rails, a...
6432009 Continuously variable transmission  
A continuously variable transmission that comprises an input shaft to which torque may be applied, an adjustable gearing mechanism, and a driven element. The adjustable gearing mechanism is...
6267699 Variable ratio magnetic drive mechanism  
A drive mechanism of the type having a first pulley, a second pulley, and an endless flexible drive member extending therebetween for transmitting motion from the first pulley to the second pulley...
6152844 Variable diameter pulley for a transmission  
A rotary power source and a continuously variable transmission are coupled together. The continuously variable transmission includes a first shaft, a first pulley coupled to rotate with the first...
6151925 Methods and systems for positively feeding yarn to circular knitting machines  
A method for positively feeding yarn to a circular knitting machine includes adjusting a variable drive mechanism to vary the rate at which yarn is positively fed from a plurality of positive feed...
6086493 Continuously variable transmission  
In a continuously variable transmission, a hydraulic actuator for axially moving a movable sheave has an outer cylinder which includes a radial portion extending radially from a boss on the...
5984814 Variable ratio chain drive transmission  
A chain drive transmission has a variable diameter sprocket. The sprocket has a number of sectors which can be moved radially relative to a hub of the sprocket. The sectors are biased outwardly but...
5772546 Continuously variable automatic drive  
A continuously variable automatic drive has a front driving sprocket and a rear driven sprocket. Each of these sprockets has a housing and a plurality of involute-shaped toothed segments, each...
5618240 Sprocket ratio changer  
A chain shifting apparatus senses bias of pre-set peak pedal force to incrementally move a derailleur cable in a first direction, and to store spring energy. A governor apparatus senses peak...
5520583 Governor drive pulley  
A governor drive pulley capable of having a wide variation in effective pulley radius and automatically performing predetermined mechanical control functions. The pulley includes sheave segments...
5087224 Continuous speed gear functioning by means of cog wheels of variable radius  
Continuous speed change gear, especially for two-wheeled vehicles, comprising two cog wheels, a cylindrical support for continuously varying, as desired, their center distances, accompanied by...
5035678 Energy-storing bicycle sprocket drive system  
The present invention is an energy-storing bicycle sprocket drive system which includes a crank which rotates a shaft about the shaft's longitudinal axis. The crank moves through a point of minimum...
4990123 Continuously variable transmission system having a variable diameter pulley with resiliently biased belt engaging members  
A continuously variable transmission system having a fixed variable diameter pulley connected by a drive belt to at least one other pulley. A tensioner pulley maintains the tension on the drive...
4961719 Variable drive transmission  
A drive transmission for work producing mechanism, such as a bicycle or other vehicle, in which a carrier member is mounted on a rotatable crank shaft and has a plurality of spaced, pivotally...
4892507 Single or double variable diameter pulley and speed variators including such a double pulley  
Pulley usable in single or double form. It comprises a guidance structure (3) for segments (4) displaceable in accordance with the setting of the rods (7), which are advantageously symmetrically...
4889354 Eccentrically operating speed-variating means for bicycle  
A variable speed adjuster for a bicycle includes: a driving disk secured to a bike hub or spokes having a plurality of radial slots formed in the driving disk, a collar secured with a chain wheel...
4810235 Variable transmission with an integral shifter  
A variable transmission with an integral shifter, particularly suitable for a bicycle, having a variable-sprocket mounted on an axle having crank-arms. The variable-sprocket comprises a...
4759739 Expansible chainwheel variable ratio mechanical drive  
A variable ratio transmission includes an input and an output, having an expansible chainwheel. A first drive path is provided to rotate the chainwheel and a second drive path is provided to...
4598920 Automatic transmission for a bicycle and the like-pedaled apparatus  
An automatic transmission for a bicycle comprising a sprocket wheel of variable diameter, for receivably engaging a linked bicycle chain, drivingly connected to a bicycle wheel. The diameter of the...
4592737 Torque sensing drive  
A torque sensing variable diameter power transfer assembly is disclosed wherein the cam members are provided with an asymmetrical cam surface pattern having first and second cam surfaces meeting...
4539000 Method of making belt tensioning means  
A method of making the combination of a power transmission belt that is to be operated in an endless path and a tensioner for the belt is provided, the tensioner comprising a support unit fixed...
4478594 Belt tensioning means  
A combination of a power transmission belt that is to be operated in an endless path and a tensioner for the belt is provided, the tensioner comprising a support unit fixed relatively to the belt,...
4342559 Drive system  
A load-responsive variable diameter pulley in a drive system using a driving pulley and a driven pulley functionally connected by a belt. The basic pulley assembly includes two spaced apart...
4068539 Variable-ratio transmission  
A transmission capable of providing an infinitely variable drive ratio between a predesigned minimum and maximum ratio, either automatically or manually variable.
3995508 Automatic bicycle transmission  
The drive ratio of a bicycle transmission is automatically varied through a radially contractible drive chain sprocket wheel assembly that is drivingly coupled to a pedal driven, drive ratio...
3969948 Automatic bicycle transmission  
An automatically variable speed ratio transmission for a pedal driven vehicle such as a bicycle with a chain and sprockets. A pedal operated chain driving sprocket is capable of having its diameter...
3956944 Torque operated, variable diameter belt sheave or chain sprocket  
A variable ratio chain sprocket is disclosed wherein a plurality of chain engaging segments are slidingly affixed between a first pair of disks and are constrained to move in a radial direction...
3935751 Centrifugal stepless speed changing device  
The present invention relates to a stepless speed changing device and more particularly to the construction of an automatic speed changing device suitable for a vehicle or the like, the centrifugal...
2867436 Speed control  
3613468 Title is not available  
Matches 1 - 31 out of 31