High pressure, leak resistant explosionproof capacitance probe
US5481197A · kind A · utility
23Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1993 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Sep 17, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2260/042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A low intrinsic capacitance probe system for measuring capacitance to detect the liquid fill level of a pressure vessel that incorporates a high pressure center rod retention system and an explosionproof flame path seal into its mounting gland. The system reduces or eliminates the cold flow of PTFE within the probe and eliminates the need for periodic retorquing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.