US2709751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared concentrometer
Assignee: Schneider Electric Systems USA Inc
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Filing: 1951-01-17
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Granted: 1955-05-31
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Expires: 1971-01-17
Abstract
No abstract record available.
Inventors
- 👤 Robert V Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:46
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
142 words
IN AN ABSORPTION ANALYZER HAVING A SINGLE SOURCE OF INFRARED RADIATION, MEANS INCLUDING A SAMPLE VOLUME AND A NON-ABSORBING REFERENCE VOLUME FOR RESOLVING THE RADIATION INTO INTERMITTENT, ALTERNATE BEAMS REPRESENTATIVE RESPECTIVELY OF THE ENERGY INCIDENT UPON AND ABSORBED BY THE COMPONENT TO BE ANALYZED, AND A DETECTOR UNIT INCLUDING AN ABSORBING VOLUME PROVIDING CHAMBER DISPOSED IN THE PATH OF BOTH SAID BEAMS; MEANS FOR REGISTERING THE ENERGY CHANGES PRODUCED IN SAID CHAMBER BY SAID BEAMS COMPRISING MEANS INCLUDING A CHAMBER MOUNTED PRESSURE SENSING ELEMENT FOR CONVERTING THE PRESSURE PULSES IN SAID VOLUME INTO ELECTRIC SINGNALS REPRESENTATIVE OF SAID ENERGY CHANGES; MEANS ASSOCIATED WITH SAID LAST-NAMED MEANS FOR EFFECTING FREQUENCY MODULATION OF SAID SIGNALS; A FREQUENCY DISCRIMINATOR SYSTEM CONNECTED TO DETECT SAID FREQUENCY MODULATION; AND AN OUTPUT DEVICE COUPLED THERETO AND COMPRISING A LOW IMPEDANCE FILTER RECTIFIER ADAPTED TO SUPPLY A POTENTIOMETRIC DEVICE.
Claim 2
Dependent Claim
142 words
IN AN ABSORPTION ANALYZER HAVING A SINGLE SOURCE OF INFRARED RADIATION, MEANS INCLUDING A SAMPLE VOLUME AND A NON-ABSORBING REFERENCE VOLUME FOR RESOLVING THE RADIATION INTO INTERMITTENT, ALTERNATE BEAMS REPRESENTATIVE RESPECTIVELY OF THE ENERGY INCIDENT UPON AND ABSORBED BY THE COMPONENT TO BE ANALYZED, AND A DETECTOR UNIT INCLUDING AN ABSORBING VOLUME PROVIDING CHAMBER DISPOSED IN THE PATH OF BOTH SAID BEAMS; MEANS FOR REGISTERING THE ENERGY CHANGES PRODUCED IN SAID CHAMBER BY SAID BEAMS COMPRISING MEANS INCLUDING A CHAMBER MOUNTED PRESSURE SENSING ELEMENT FOR CONVERTING THE PRESSURE PULSES IN SAID VOLUME INTO ELECTRIC SINGNALS REPRESENTATIVE OF SAID ENERGY CHANGES; MEANS ASSOCIATED WITH SAID LAST-NAMED MEANS FOR EFFECTING FREQUENCY MODULATION OF SAID SIGNALS; A FREQUENCY DISCRIMINATOR SYSTEM CONNECTED TO DETECT SAID FREQUENCY MODULATION; AND AN OUTPUT DEVICE COUPLED THERETO AND COMPRISING A LOW IMPEDANCE FILTER RECTIFIER ADAPTED TO SUPPLY A POTENTIOMETRIC DEVICE.
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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) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |