Horizontal filter stage with simultaneous venting and draining
US8246825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D35/31
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter assembly for filtering particulate contaminants from a fluid comprises: a generally cylindrical filter unit with one end closed and the other end open; a filter head comprising a generally cylindrical sleeve extending generally horizontally an open end for receiving the open end of the filter unit with that has a vent port aligned with a vertical axis through an upper portion of the sleeve and a drain port aligned with the vertical axis extending through a lower portion of the sleeve; and a coupling for securing the open end of the filter unit to the filter head to seal the sleeve vent and drain ports; wherein loosening the coupling allows the filter unit to slide away from the filter head sufficiently to establish fluid communication between the sleeve vent and drain ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.