Power unit attachable to a bicycle
US9802674B2 · kind B2 · utility
2Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Aug 24, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H7/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power unit includes a drive unit and a power sprocket for engaging the transmission band of a bicycle. The power unit includes a first free-wheeling sprocket arranged on a first side of the power sprocket and a second free-wheeling sprocket arranged on a second side of the power sprocket. The power sprocket receives the transmission band from the first free-wheeling sprocket on the first side and passes the transmission band to the second free-wheeling sprocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.