Pressure relief valve with filter
US5647880A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Aug 31, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/4272
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pressure relief valve for both reducing pressure in a vessel when the pressure of a mixed media combination made up of a mixture of gaseous and nongaseous components and contained in the vessel is at a relief valve actuating pressure, and for filtering nongaseous components from a mixed media combination flowed from the valve. The valve includes a housing with an inlet and a discharge port. The housing inlet is disposed in mixed media combination receiving communication with the vessel. The housing defines a housing chamber and the housing also includes a valve member movable within in the chamber between an occluding position, relative to the inlet when the vessel pressure is not at the actuating pressure, and a non-occluding position, relative to the inlet, when the vessel pressure is at the actuating pressure. The pressure relief valve also includes a filter device expandable by the mixed media combination when the vessel pressure is at the actuating pressure. The filter device is disposed in mixed media receiving relation with the discharge port, and filters the nongaseous components from the mixed media combination and permits the gaseous components to flow through the filte…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.