Device for passing through pipes
US6339993B1 · kind B1 · utility
37Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/28
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device (1) for passing through pipes in the form of a pig (1) moving through the pipe and guided on the inner wall thereof has at least one pig body (16) and support elements (8a) on the outer periphery thereof for guidance within the pipe as well as drive elements (10a, 10b) in the form of collars for transport in the pipe. The device is distinguished by improved entrance into the pipe conduit in that at least one of the collars (10a, 10b) can be radially expanded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.