Gas sampling probe
Abstract
Abstract A GAS SAMPLING PROBE IS DISCLOSED FOR SAMPLING PARTICULATE AND MOISTURE LADEN GASES. THE PROBE COMPRISES A TUBULAR SHIELDING MEMBER HAVING AN OPEN END IN THE GAS FLOW PATH AND A TUBULAR SAMPLING PROBE MOUNTED CONCENTRICALLY WITHIN THE SHIELDING MEMBER. THE SAMPLE PROBE IS MADE OF A LOW HEAT CONDUCTIVE SUBSTANCE PERMEABLE TO MOISTURE. PARTICULARLY USEFUL ARE CERAMIC MATERIALS. THE PROBE (1) ALLOWS MOISTURE TO EVAPORATE THROUGH IT INTO THE ATMOSPHERE, (2) COOLS THE GAS SAMPLE WITHOUT DEGRADATION THEREOF, AND (3) IS CORROSION RESISTANT. PARTICULATE MATTER WHICH DEPOSITS IN THE SAMPLING PROBE IS REMOVED BY PERIODICALLY FLUSHING THE TUBULAR PROBE WITH COMPRESSED AIR OR OTHER FLUID. VALVE MEANS PERIODICALLY AND SELECTIVELY CONNECTS THE FLUSHING FLUID TO THE PROBE MEMBER.
Inventors
- 👤 Gerhardt N Thoen
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |