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Class 474/20 - Including interengaged threads


Subclass of Class 474 - Endless belt power transmission systems or components
Definition: Subject matter wherein each of the relatively rotating elements
No. of patents: 6
Last issue date: 04/22/2008


NumberTitleIssue Date
7361108Continuously variable transmission
A continuously variable transmission with two conical disk pairs on the input side and two conical disk pairs on the output-side that are connected with each another by two parallel endless torque-transmitting members in a drive mechanism. In one form of the transmi...
04/22/2008
7004860Belt type infinite variable-speed drive
A belt type infinite variable-speed drive using a ball-screw mechanism is compact and noise-free. A nut of the ball-screw mechanism is fixed to a casing and a threaded shaft is rotatably coupled to a movable pulley member through a ball bearing so that ball circulat...
02/28/2006
6723014Control device of continuously variable transmission
A transmission mechanism of continuously variable transmission in a vehicle comprises a primary pulley and a secondary pulley provided with a first cylinder chamber and a second cylinder chamber, with groove widths being changed by supply of hydraulic pressure, and ...
04/20/2004
6689000Pulley set for a continuously variable transmission unit
A pulley set for a continuously variable transmission unit, comprises a pair of discs accommodated on a shaft, and a screw mechanism which is concentric with respect to said discs and for moving the discs towards and from each other, said discs enclosing ...
02/10/2004
6626778Continuously variable transmission unit
A continuously variable transmission unit comprises two pulley sets (1, 2) which each comprises a pair of discs (66, 67) and a screw mechanism (12, 13) which is concentrated with respect to a pulley set (1, 2) for moving the discs (66, 67) of the pulley s...
09/30/2003
5405158Variable ratio belt drive system
A drive system suitable for a bicycle and capable of providing various drive ratios comprising first and second pairs of conical members, each pair including primary and secondary conical members, both of which are rotatable about a first or second transv...
04/11/1995
 
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