Seal for high pressure and small volume sample cells
US5054919A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Feb 7, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/746
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is disclosed herein a cell assembly for a spectrophotometric analysis or detection of a substance within a small sample volume. The assembly includes a cell body with a small sample bore, along with windows engaging said body to allow radiation to pass through the sample bore and the windows. A sealing arrangement is provided for each window via a sealing washer which is loaded by two means. An inner portion of the sealing washer engages the window and is loaded by a first spring loaded assembly, such as a Belleville washer and plunger. An outer portion of the sealing washer is separately loaded by a ring pressed against the cell body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.