Filter container
US5125939A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2275/208
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for filtering contaminated gases. An extraction device provides a slow passage for the gases. The extracton device is in fluid communication with an intake port of a fan aggregation. The fan aggregation provides a vacuum for drawing the gases through the extraction device. The fan aggregation is rigidly supported on top of a filtration container. The gases are expelled by the fan aggregate through an exhaust port and into an interior chamber of the filtration container. A filter blocks the passage of contaminant components of the gases and permits the passage of noncontaminant of the gases from the interior chamber to the atmosphere. A gas-permeable housing surrounds the filter to retain the filter and support the weight of the aggregate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.