Radar level gauge with high temperature, high pressure (HTHP) process seal
US10539448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Apr 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/284
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar level gauge comprising a directional antenna, a hollow wave guide connected to the antenna, a tank connection having a through hole with an annular abutment, a dielectric filling member arranged in the tank connection, the dielectric filling member comprising an annular collar portion resting against the annular abutment, a clamping member inserted into the tank connection, a fastening member attached to the fixed tank connection to secure the clamping member between the fastening member and the annular abutment, and a spring member arranged between the fastening member and the clamping member. The spring member presses the clamping member towards the annular abutment, to apply a controlled pressure on the annular collar portion, allowing the annular collar portion to serve as a pressure tight sealing between a tank interior and a tank exterior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.