Roller counter
US4821300A · kind A · utility
Inventor
Key dates
| Filing date | May 20, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | May 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06M1/163
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A roller counter, which can be reset to zero position via its axis has, for the purpose of stepping its digit rollers, a lock pawl swivellably supported on a side wall of the digit rollers for being swivelled around a pin. A pestle, serving the purpose of zero setting, is supported for swivelling movement around a second pin on the digit roller and cooperates with a stop on the axis. The locking pawl and the pestle each are spring-loaded to a predetermined degree by a leg of a leaf spring bent to V-shape. The leaf spring is held on the digit roller by means of a mounting including walls accompanying both legs of the leaf spring at the inner side and at the outer side and contacting the legs according to a surface-to-surface contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.