Cam follower automatic torque converter transmission
US5980412A · kind A · utility
6Cited by
25References
6Claims
0Family size
Inventor
Key dates
| Filing date | Nov 15, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Nov 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18408
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fully automatic infinitely variable torque converter bicycle transmission makes use of cam followers acting between a driver wheel connected with an input and a follower wheel connected with an output. Torque is varied by varying a radial position of the cam followers relative to the driver wheel and the follower wheel, wherein a return of the cam followers toward an outer radial position is delayed. All force transmitting components of the apparatus are mechanically engaged without relying on friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.