Universal sampling device for high and low viscosity substances
US5566576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/1037
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A universal sampling device for retrieving samples of high and low viscosity substances at various depths and from specific portions of contained bodies of materials without being completely submerged therein, is disclosed. The sampling device is made of chemically inert material, has manually operable inlet and outlet vent valve means attached to opposite inlet and outlet ends of a relatively long tube into which the sample enters upon opening of the inlet and outlet valve means at the desired point in the substance to be tested. Means are provided for manually closing and opening of the inlet valve means such as pushing and pulling a valve stem by hand into sealingly engagement with an inlet valve body. Another method attaches a valve stem to an adjustable valve control rod extending upwardly through the tube and outlet valve means. Closing of the inlet valve means can be attained by pushing the device and valve stem against a bottom or side wall containing the substance until the inlet valve stem snaps closed prior to withdrawal of the device and sample therein. Means such as a manually operable piston and piston rod may be slidably inserted into the long tube for sucking sample…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.