Apparatus for measuring the dew point temperature of a gas
Abstract
Abstract THE DEW POINT TEMPERATURE OF A GAS IS MEASURED BY A THERMOCOUPLE OPERABLE TO DETECT AND SIGNAL THE TEMPERATURE OF A SENSING PLATE WHICH IS ALTERNATELY COOLED AND HEATED TO CAUSE MOISTURE IN THE GAS OT PERIODICALY CONDENSE BETWEEN A PAIR OF ELECTRODES SUPPORTED ON ONE SURFACE OF THE PLATE, THE SENSING PLATE IS MADE OF A HIGHLY THERMALLY CONDUCTIVE MATERIAL SUCH AS BERYLLIUM OXIDE TO REDUCE THE TEMPERATURE DIFFERENTIAL BETWEEN THE CONDENSING SURFACE AND THE THERMOCOUPLE AND THEREBY IMPROVE THE ACCURACY AND SENSITIVITY OF THE APPARATUS. TO INCREASE THE SERVICE LIKE OF THE APPARATUS, THE ELECTRODES ARE SEATED IN RECESSES IN THE SENSING PLATE AND ARE FLUSH WITH THE CONDENSING SURFACE.
Inventors
- 👤 Hugh R Sproul
Bibliographic Details
Claims Analysis
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |