Apparatus for cleaning the interior of pipelines
US6857158B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jul 24, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jul 24, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/0551
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for removing deposits from the interior surface of a conduit while being advanced through the conduit by virtue of pressurized upstream liquid includes front and rear assemblies interconnected in a manner to permit limited movement there between. The rear assembly contains a mechanism for receiving the upstream liquid and increasing its pressure. The liquid of increased pressure is fed to a rotating nozzle in the front assembly. High velocity water jets emergent from the nozzle strike the interior surface of the conduit to dislodge deposits. A resilient sidewall in one or both assemblies expands by virtue of the liquid of increased pressure to apply a controlled braking force against the interior surface of the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.