Dating wheels
US4252061A · kind A · utility
5Cited by
6References
2Claims
0Family size
Inventor
Key dates
| Filing date | Sep 17, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Sep 17, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F27/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Dating wheel with a tracer symbol unit which can be manually inserted on or removed from the wheel. To change the tracer symbol, the operator simply uses thumb and forefinger to grasp the unit and extract same and then replace with an identical unit having a different symbol. This can be done without slowing or stopping the cases or other medium being printed. There is no machine down-time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.