Filter for separating discrete solid elements from a fluid stream
US4434054A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1982 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Dec 20, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D39/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter element which is physically capable of withstanding adverse operating conditions in a subterranean environment. The filter element comprises a durable, yet fluid pervious casing through which a particulate carrying fluid is radially passed after leaving the substrate. An annular bed within the casing, is formed of a metallic fibrous mass which defines multitudinous flow passages that retain the solid particles, yet pass the residual fluid therethrough. A fluid pervious sheath surrounds the metallic mass to form an initial particle retention phase, to maintain the fibrous mass in its desired shape, and to function as a base for accumulating retained solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.