Self-righting, bi-directional pipe caster
US7343863B2 · kind B2 · utility
2Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Feb 15, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/28
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus for transporting a payload along the inside of a substantially horizontal pipe. The apparatus includes vertically aligned upper and lower roller elements which are relationally pivotably connected to each other, both of which contact the inside surface of the pipe into which the apparatus is inserted. The apparatus further includes a steering pendulum which enables the apparatus to maintain a substantially vertical orientation as it is pushed or pulled through the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.