Self-metering semi-automatic quantitative filtration assembly
US4555331A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1985 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | Jan 30, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D29/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A semi-automatic quantitative filtration assembly is disclosed having a measuring means to measure and present a known quantity of fluid for filtering and a fluid holding means adjacent to a filter medium. The fluid holding means is adapted to receive and hold excess fluid during filtering and to prevent intermixing with a known quantity of fluid to be presented to filtering. The filtering apparatus is designed to filter a quantitative amount of fluid and receive fluid in the fluid holding tank which is excess sample fluid or fluid unwanted as a result of error or operational failure and which drains to a common vacuum/waste means for filtered fluid. A variety of features are also provided to insure proper operation and minimize operator error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.