Combustion apparatus for use in elementary analysis
US4351801A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1981 |
| Grant date | Sep 28, 1982 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/176921
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a combustion apparatus for elementary analysis. Solid material samples contained in small tubes are introduced into the combustion apparatus by means of an automatic inserting device. The automatic inserting device is provided with an automatic loading device for the small tubes. In order to keep the dimensions of the combustion apparatus within reasonable limits and nevertheless to permit the largest possible quantities of sample material which are representative for the material to be investigated, the quartz tube serving to burn the sample material and extending through a main combustion zone is of circuitous shape, preferably in the form of a coil. For the purpose of burning liquid samples, use is made of a plug having a through bore, said plug serving to close the receiving aperture of the quartz tube. Said through bore is closed by means of a plastic material which is adapted to be penetrated by an injection needle serving to inject the liquid sample material. Upon the injection needle being withdrawn, the plastic material is adapted again to effect gastight closure of the quartz tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.