Fluid-filtration receptacle with user-variable semi-permeable drain assembly
US6719896B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Jun 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2846
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a fluid-filtration receptacle well-suited for use in centrifugal sample concentration protocols, and particularly, wherein specifiable degrees of sample concentration are sought. Toward this end, the fluid-filtration receptacle is provided with an integral semi-permeable drain capable of being either completely or variably unsealed by a user to allow selective draining of a predetermined corresponding volume of said liquid from said receptacle. The fluid-filtration receptacle is preferably used in combination with a filtrate collection vial. The receptacle fits at least partially within the vial such that liquid (i.e., filtrate) drained from said receptacle collects within said vial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.