Filter system with readily replaceable filter element
US4818398A · kind A · utility
Inventors
Key dates
| Filing date | Dec 21, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Dec 21, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/96
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter system including an elongated cylindrical vessel body having a flow inlet connected to inlet conduit, a flow outlet connected to an outlet conduit, a closed end, and a movable cover member. The conduits are adapted for respective connection to control valves. A hinge connects the cover member to the vessel body for pivoting the cover member from closed position to open position. A solids separator element disposed within the body has a hollow porous member attached about periphery of a support ring. The support ring has an annular flat surface abutting an annular flat surface of the support flange. An arcuate resilient spring is connected to opposite sides of the support ring and extends to be forcefully deformed against the inner side of the cover member when cover member is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.