Filter device for a minute volume of liquid
US4690754A · kind A · utility
7Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Mar 10, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2313/2062
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter device for a minute volume of liquid, usable under a centrifugal force or under pressure, comprising a cylindrical member and a hollow thread filter having an open lower end and housed in said cylindrical member to form an annular space for containing a sample liquid around the filter, with the lower part of the hollow thread filter liquid-tightly bonded to the inside wall of the lower part of the cylindrical member and with the upper end of the hollow thread filter sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.