Filter for subterranean use
US6382318B1 · kind B1 · utility
37Cited by
10References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/0407
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter for subterranean use includes a filter body containing a filter medium, and a restraining member disposed around the filter body. The inner periphery of the restraining member is sufficiently close to the outer periphery of the filter body to prevent the filter body from being damaged by radially outward forces encountered during operation of the filter within a well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.