Ink feed volume measuring device
US4146798A · kind A · utility
1Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1977 |
| Grant date | Mar 27, 1979 |
| Priority date | — |
| Expiry date | Mar 1, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ink feed measuring device comprising a luminuous plate and a light receiving plate constructed so as to hold a photographic film of a printed matter between the two plates, the luminuous plate having one or more electro-luminescent plates and the light receiving plate having a plurality of photoelectric elements corresponding to the sectioned areas of the photographic film, wherein ink feed volume corresponding to each sectioned area of the photographic film is measured based on the amount of light transmitted through the sectioned areas of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.