Laboratory apparatus
US8973585B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Sep 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4066
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a glass laboratory apparatus that includes a pre filter and a main filter to scrub solids from a gas using water filtration. A preferred embodiment of the present invention includes a main vessel adapted to hold a volume of a liquid such as water and an inlet conduit with an opening above the liquid level in the main vessel and an outlet below the surface of the liquid level in the main vessel. A pre filter arranges in the inlet conduit at a level above the liquid level in the main vessel. A main filter is located below the water level in the main vessel. A negative pressure is supplied to draw a gas through the first, pre-filter, through the water and second main filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.