US2720594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-component infrared analyzer
Assignee: Phillips Petroleum Co
•
Filing: 1951-01-02
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Granted: 1955-10-11
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Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Hutchins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:06
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A PHOTOMETRIC ANALYZER, IN COMBINATION, A RADIATION SOURCE, A RADIATION DETECTOR, MEANS TO FORM A PAIR OF RADIATION BEAMS EXTENDING FROM SAID SOURCE TO SAID DETECTOR, A FIRST CELL DISPOSED IN THE FIRST OF SAID BEAMS, A PLURALITY OF SECOND CELLS DISPOSED TO BE DISPOSED SELECTIVELY IN THE SECOND OF SAID BEAMS, SAID FIRST AND SECOND CELLS BEING ADAPTED TO HOLD FLUID SUBSTANCES PREFERENTIALLY ABSORBING CERTAIN WAVE LENGTHS OF SAID RADIATION BEAMS, A MOTOR FOR MOVING SAID SECOND CELLS INTO AND OUT OF SAID SECOND BEAM, A SELECTOR SWITCH DRIVEN BY SAID MOTOR, A TIMER SWITCH IN THE MOTOR CIRCUIT FOR DEENERGIZING SAID MOTOR EACH TIME ONE OF SAID SECOND CELLS IS IN POSITION TO PERMIT PASSAGE THERETHROUGH OF SAID SECOND RADIATION BEAM, AND A FIXED CELL DISPOSED IN BOTH BEAMS OF RADIATION, SAID FIXED CELL BEING ADAPTED TO CONTAIN A SAMPLE TO BE ANALYZED.
Claim 2
Dependent Claim
146 words
IN A PHOTOMETRIC ANALYZER, IN COMBINATION, A RADIATION SOURCE, A RADIATION DETECTOR, MEANS TO FORM A PAIR OF RADIATION BEAMS EXTENDING FROM SAID SOURCE TO SAID DETECTOR, A FIRST CELL DISPOSED IN THE FIRST OF SAID BEAMS, A PLURALITY OF SECOND CELLS DISPOSED TO BE DISPOSED SELECTIVELY IN THE SECOND OF SAID BEAMS, SAID FIRST AND SECOND CELLS BEING ADAPTED TO HOLD FLUID SUBSTANCES PREFERENTIALLY ABSORBING CERTAIN WAVE LENGTHS OF SAID RADIATION BEAMS, A MOTOR FOR MOVING SAID SECOND CELLS INTO AND OUT OF SAID SECOND BEAM, A SELECTOR SWITCH DRIVEN BY SAID MOTOR, A TIMER SWITCH IN THE MOTOR CIRCUIT FOR DEENERGIZING SAID MOTOR EACH TIME ONE OF SAID SECOND CELLS IS IN POSITION TO PERMIT PASSAGE THERETHROUGH OF SAID SECOND RADIATION BEAM, AND A FIXED CELL DISPOSED IN BOTH BEAMS OF RADIATION, SAID FIXED CELL BEING ADAPTED TO CONTAIN A SAMPLE TO BE ANALYZED.
References Cited (Backward Citations)
US2152645A
Cited
US2355092A
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US2386878A
Cited
US2496333A
Cited
US2534657A
Cited
US2555327A
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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) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |