Serpentine tube inspection positioning spine
US5197348A · kind A · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1991 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Oct 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20456
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A positioning spine for driving equipment used in inspecting tubing. A helical extension spring has a plurality of wheeled carriers mounted thereon at selected intervals. Wheels mounted on each carrier rotate in planes radial to the spring to allow the positioning spine to travel through tubes having bends in more than one plane. Each carrier is formed from two body sections that are fastened together around the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.