Well-logging camera using modulated laser light path for exposing in camera processable electrographic film
US4093955A · kind A · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1976 |
| Grant date | Jun 6, 1978 |
| Priority date | — |
| Expiry date | Oct 8, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/326
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A well-logging camera for producing API format with traces utilizing a unique modulated laser light path to expose an in camera processable, electrophotographic film. After exposure, the film passes through an easily removeable, developing means having means stripping the film of excess developer. The film is driven through the camera by edge drive mechanism in which rotative force from the drive rollers is effectively transferred to skewed pressure rollers for effective drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.