Sludge and sediment removal system by remote access
US7950530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2006 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Apr 2, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/0933
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A compound conduit containing inner and outer conduits with apertures in the former that are angled to direct jets of fluid in a rearward direction from the inner conduit into the annular space is used to draw sludge or undesirable material from a vessel without imposing a vacuum on the system. In conjunction with the compound conduit is a rotary tube seal that allows the conduit to be mounted to an orifice in a tank wall and pivoted or rotated over a range of angles. A tubing drive mechanism grasps the tubing at locations well removed from the distal end and causes the tubing to travel in the direction of the tubing axis. The gripping members in the mechanism engage the sides of the tubing and are capable of shifting position relative to each other to accommodate changes in the curvature of the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.