Identification in manufacture
US4916293A · kind A · utility
121Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1987 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Dec 8, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C3/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of identifying a workpiece in the course of its manufacture, in which the workpiece carrying an existing identification marking is supplied to an apparatus in which it is to be subject to a process that removes or obscures the marking, the marking is machine-read after the workpiece has been placed in the apparatus but before the process begins, data from the reading is put in store, and at the end of the process the identification is re-marked on the workpiece in accordance with the stored data while the workpiece is retained in a predetermined position in the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.