Fluid filtering system with backflush valve and methods of operating the same
US12151187B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2020 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Aug 29, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/273
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In one example, a filtering device has a housing that defines an inlet opening, first and second bores with first and second pistons therein, respectively, first and second inlet channels that extend from the inlet opening to the first and second bores, respectively first and second outlet channels in communication with the first and second bores, respectively, and a first backflush channel. The first piston defines a filter cavity in fluid communication with the first inlet and outlet channels when the first piston is in a production mode. The second piston defines a filter cavity in fluid communication with the second inlet and outlet channels when the second piston is in the production mode. The device has a backflush valve that compresses fluid into the filter cavity of the first piston via the first backflush channel to increase pressure in the cavity during a backflushing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.