Pre-wet system having pneumatic circulation
US12350609B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 16, 2022 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Apr 4, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/165
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In some embodiments, a system for pre-wetting a filter includes a filter, a piping system, a first gas, a second gas, a first buffer tank, and a second buffer tank. The first gas drives the solvent to clean the filter. The two buffer tanks store the solvent discharged from the filter. The second gas selectively drives the solvent in the first buffer tank to return to the filter and then to be discharged into the second buffer tank. Alternatively, the second gas selectively drives the solvent in the second buffer tank to return to the filter and then to be discharged into the first buffer tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.