Photographic pipeline inspection apparatus including an optical port wiper
US4363545A · kind A · utility
10Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Mar 26, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B37/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention relates to apparatus for photographic inspection of the interior of a pipeline and more particularly to apparatus which includes an optical port wiper which makes it possible to obtain clear and accurate photographs under adverse environmental conditions. The apparatus is highly effective and reliable while being comparatively simple and readily and economically manufacturable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.