US2642536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicomponent gas analyzer
Assignee: Standard Oil Development Co
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Filing: 1950-06-01
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Granted: 1953-06-16
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Expires: 1970-06-01
Abstract
No abstract record available.
Inventors
- 👤 John J Heigl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:38
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AN IMPROVED DETECTOR ASSEMBLY IN APPARATUS FOR THE MULTI-COMPONENT INFRA-RED DETERMINATION OF GASEOUS MIXTURES CONSISTING OF A PLURALITY OF INFRA-RED ABSORBENT CELLS, SAID CELLS BEING ARRANGED IN PAIRS IN THE PATH OF RADIATION THROUGH A PLURALITY OF GAS SAMPLE CELLS, ONE OF EACH PAIR OF ABSORBENT CELLS BEING PNEUMATICALLY CONNECTED TO ONE SIDE OF A CONDENSER MICROPHONE DETECTOR, WHILE THE OTHER OF THE SAID PAIRS OF ABSORBENT CELLS IS PNEUMATICALLY CONNECTED TO THE OTHER SIDE OF THE SAID CONDENSER MICROPHONE DETECTOR, AND MEANS TO PERIODICALLY CONTROL THE IMPINGEMENT OF PULSATING INFRA-RED ENERGY ON EACH OF THE PAIRS OF THE SAID ABSORBENT CELLS WHEREBY THE SIDE DETECTOR PERIODICALLY INDICATES ANY DIFFERENTIAL IN
Claim 2
Dependent Claim
111 words
AN IMPROVED DETECTOR ASSEMBLY IN APPARATUS FOR THE MULTI-COMPONENT INFRA-RED DETERMINATION OF GASEOUS MIXTURES CONSISTING OF A PLURALITY OF INFRA-RED ABSORBENT CELLS, SAID CELLS BEING ARRANGED IN PAIRS IN THE PATH OF RADIATION THROUGH A PLURALITY OF GAS SAMPLE CELLS, ONE OF EACH PAIR OF ABSORBENT CELLS BEING PNEUMATICALLY CONNECTED TO ONE SIDE OF A CONDENSER MICROPHONE DETECTOR, WHILE THE OTHER OF THE SAID PAIRS OF ABSORBENT CELLS IS PNEUMATICALLY CONNECTED TO THE OTHER SIDE OF THE SAID CONDENSER MICROPHONE DETECTOR, AND MEANS TO PERIODICALLY CONTROL THE IMPINGEMENT OF PULSATING INFRA-RED ENERGY ON EACH OF THE PAIRS OF THE SAID ABSORBENT CELLS WHEREBY THE SIDE DETECTOR PERIODICALLY INDICATES ANY DIFFERENTIAL IN
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |