Apparatus with retractable cleaning members
US6152221A · kind A · utility
46Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Aug 19, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B37/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for cleaning the inside walls of a pipeline, well casing or other tubing, comprises a supporting structure upon which are supported one or more cleaning members, and retraction means for controllably retracting the cleaning members so as to avoid their contact with the aforesaid tubing when desired. The apparatus is also provided with a sleeve to effect contact between the retractable cleaning members and the pipeline, well casing or other tubing. Typically, the apparatus is provided in the form of a well cleanup tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.