Matrix printing chart paper
US4207580A · kind A · utility
1Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Jul 28, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/34
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A process for improving the readability of a data-recording line on a chart recording paper whereby the improvement is achieved by moving the recording line across a field largely composed of a matrix of dots. The procedure is particularly advantageous in improving the readability of thin lines achievable with pressure-responsive or thermographic paper, but it is also advantageous when common inking procedures are used. A novel chart paper consisting of a dot matrix format is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.