Periscope assembly
US4190857A · kind A · utility
4Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B37/003
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A remotely controlled periscope assembly that is used in conjunction with closed circuit television apparatus to view the inside of tubes in a nuclear steam generator or other apparatus. The periscope assembly is moved universally to any given location and then it is readily collapsed after visual identity has been accomplished to permit the insertion of an aligned tool deemed necessary for maintenance or repair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.