Filter device to capture a desired amount of material
US6884341B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Nov 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25375
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A filter device is used to capture a desired amount of material suspended in a liquid or gas. The device includes a planar filter 530 mounted in a chamber defined by a body member having an upper body 510, a lower body 520, an inlet port 525, and an outlet port 515. The filter includes porous portions 540 and 545. Porous portion 545 is centrally arranged and is more restrictive to flow than portion 540. The filter is designed such that upon portion 540 capturing a desired amount of material, a predetermined pressure change exists across the filter. The predetermined pressure change causes the filter to deform and conform against an inner surface of the upper body resulting in all suspension flowing through the apparatus to flow through the more restrictive second portion 545.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.