Patent US2925327A successfully refreshed from Google Patents.
US2925327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous gas analyzer
Assignee: Individual
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Filing: 1958-03-13
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Granted: 1960-02-16
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Expires: 1978-03-13
Abstract
No abstract record available.
Inventors
- 👤 Katz Sidney
- 👤 Charles W Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:48
CPC Classifications
G; G01; G01N; G01N7/00; Y; Y10; Y10T; Y10T436/00; Y10T436/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN IMPROVED SYSTEM FOR CONTINUOUSLY MEASURING THE CONCENTRATION OF A SELECTED GAS IN A GAS MIXTURE, COMPRISING A FIRST CONSTANT VOLUMETRIC FLOW CONTROL SYSTEM, MEANS FOR CONTINUOUSLY FEEDING A SAMPLE GAS MIXTURE TO SAID FIRST SYSTEM, A SECOND CONSTANT VOLUMETRIC FLOW CONTROL SYSTEM, MEANS FOR CONTINUOUSLY FEEDING A REAGENT GAS TO SAID SECOND SYSTEM, EACH OF SAID FIRST AND SECOND FLOW CONTROL SYSTEMS COMPRISING A FIRST PRESSURE CONTROL VALVE, AN ABSOLUTE PRESSURE TRANSMITTER CONNECTED TO THE OUTPUT OF SAID VALVE TO REGULATE SAID FIRST VALVE, A SECOND PRESSURE CONTROL VALVE, A FIRST CONSTRICTION CONNECTED BETWEEN SAID CONTROL VALVES, A DIFFERENTIAL PRESSURE TRANSMITTER CONNECTED ACROSS SAID FIRST CONSTRICTION, THE OUTPUT OF SAID DIFFERENTIAL PRESSURE TRANSMITTER BEING CONNECTED TO REGULATE SAID SECOND PRESSURE CONTROL VALVE, A MIXER-REACTOR OPERATING AT A PRESELECTED TEMPERATURE, MEANS FOR FEEDING THE OUTPUTS OF SAID FIRST AND SECOND SYSTEMS TO SAID MIXER-REACTOR, THE REAGENT GAS AND SELECTED GAS BEING CHARACTERIZED BY FORMING A DIFFERENT NUMBER OF MOLES OF PRODUCT GAS THAN THE SUM OF THE MOLES OF SAID REAGENT AND SELECTED GASES, A SECOND CONSTRICTION HAVING
Claim 2
Dependent Claim
178 words
AN IMPROVED SYSTEM FOR CONTINUOUSLY MEASURING THE CONCENTRATION OF A SELECTED GAS IN A GAS MIXTURE, COMPRISING A FIRST CONSTANT VOLUMETRIC FLOW CONTROL SYSTEM, MEANS FOR CONTINUOUSLY FEEDING A SAMPLE GAS MIXTURE TO SAID FIRST SYSTEM, A SECOND CONSTANT VOLUMETRIC FLOW CONTROL SYSTEM, MEANS FOR CONTINUOUSLY FEEDING A REAGENT GAS TO SAID SECOND SYSTEM, EACH OF SAID FIRST AND SECOND FLOW CONTROL SYSTEMS COMPRISING A FIRST PRESSURE CONTROL VALVE, AN ABSOLUTE PRESSURE TRANSMITTER CONNECTED TO THE OUTPUT OF SAID VALVE TO REGULATE SAID FIRST VALVE, A SECOND PRESSURE CONTROL VALVE, A FIRST CONSTRICTION CONNECTED BETWEEN SAID CONTROL VALVES, A DIFFERENTIAL PRESSURE TRANSMITTER CONNECTED ACROSS SAID FIRST CONSTRICTION, THE OUTPUT OF SAID DIFFERENTIAL PRESSURE TRANSMITTER BEING CONNECTED TO REGULATE SAID SECOND PRESSURE CONTROL VALVE, A MIXER-REACTOR OPERATING AT A PRESELECTED TEMPERATURE, MEANS FOR FEEDING THE OUTPUTS OF SAID FIRST AND SECOND SYSTEMS TO SAID MIXER-REACTOR, THE REAGENT GAS AND SELECTED GAS BEING CHARACTERIZED BY FORMING A DIFFERENT NUMBER OF MOLES OF PRODUCT GAS THAN THE SUM OF THE MOLES OF SAID REAGENT AND SELECTED GASES, A SECOND CONSTRICTION HAVING
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) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |