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US3105147A
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Monobeam infrared gas analyzer with means to control the phase difference between the two cells
Assignee: Beckman Coulter Inc
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Filing: 1961-04-03
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Granted: 1963-09-24
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Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 August O Weilbach
- 👤 Cedric H Beebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:38
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
72 words
A PHASE CONTROL SYSTEM FOR A MONOBEAM ANALYZER HAVING A SAMPLE CELL AND TWO DETECTOR CELLS ARRANGED IN OPTICAL SERIES, WITH EACH OF THE DETECTOR CELLS HAVING TWO ZONES SEPARATED BY A MOVABLE DIAPHRAGM, COMPRISING: MEANS DEFINING A GAS FLOW PASSAGE BETWEEN THE ZONES OF ONE OF SAID DETECTOR CELLS; AND MEANS FOR VARYING THE GAS FLOW IMPEDANCE OF SAID PASSAGE AND THEREBY THE RELATIVE PHASE OF THE MOTIONS OF SAID DIAPHRAGMS.
Claim 2
Dependent Claim
72 words
A PHASE CONTROL SYSTEM FOR A MONOBEAM ANALYZER HAVING A SAMPLE CELL AND TWO DETECTOR CELLS ARRANGED IN OPTICAL SERIES, WITH EACH OF THE DETECTOR CELLS HAVING TWO ZONES SEPARATED BY A MOVABLE DIAPHRAGM, COMPRISING: MEANS DEFINING A GAS FLOW PASSAGE BETWEEN THE ZONES OF ONE OF SAID DETECTOR CELLS; AND MEANS FOR VARYING THE GAS FLOW IMPEDANCE OF SAID PASSAGE AND THEREBY THE RELATIVE PHASE OF THE MOTIONS OF SAID DIAPHRAGMS.
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |