Filter backflushing system using piston arrangement with connected chambers
US5846420A · kind A · utility
23Cited by
31References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1994 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Dec 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The piston arrangement includes one or more pistons, each propelled by a pneumatic actuator. Alternately, an accumulator-type actuator may be used, wherein compressed gas is inputted directly into the backflushing fluid chamber to reverse fluid flow through the filter arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.