Battery marked with irradiated trace dots
US5202199A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Nov 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to the battery and its marking process with desired designs marked on the surface of a metal container consisting of case and cover containing battery system elements within and an external metal jacket by scanning pulse laser beams and leaving a certain arrangement of dotted irradiated traces. The above marking process is suitable for inscribing finely detailed marks on small-sized batteries extensively marketed these days. Also, this process can handle frequent changes of inscription to be marked quickly and economically without losing superior clarity. Moreover, the industrial benefit will be further increased by combining it with the existing mechanical marking process, using convex dies for stamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.