Passive dust filter for an inspection hatch
US12214309B2 · kind B2 · utility
0Cited by
113References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2022 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Jul 10, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2273/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a passive dust filtering system for an inspection hatch of steel bulk storage vessel. The system includes a filter containment unit and an adaptor section for securing the unit to the storage vessel. The adaptor section includes a mounting flange having one or more magnetic switches to engage the storage vessel. A purge control system is used to periodically pulse air into filter elements in the filter containment unit to blow dust from the outside of the filter elements back into the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.