Anti-chain wrap device for bicycles
US4960402A · kind A · utility
19Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Sep 27, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M2009/007
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-chain wrap device has a plurality of lifters which are raised and curved to be adjacent the rotary path of the chainrings, respectively, to strip or free a struck chain from the chainring. The lifters are finger blade members which are joined near their lower ends to provide a more rigid construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.