Excessive gas flow detector
US4668943A · kind A · utility
5Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1986 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Jun 4, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An excessive gas flow detector has a probe in which an electrode and immediately surrounding part of an insulating sleeve are protected by a shielding ring surrounding the electrode from direct impingement of spray carried by gas sweeping down into a well under excessive gas flow conditions. A test unit for plugging into a socket of the detector gives an indication on light emitting diodes of whether there is an excessive or normal gas flow through the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.