Patent US2147472A successfully refreshed from Google Patents.
Patent US3146293A successfully refreshed from Google Patents.
US3146293A
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Measuring the mean density of the atmosphere
Assignee: Compteurs Schlumberger SA
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Filing: 1961-02-20
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Granted: 1964-08-25
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Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Lesage Daniel Marie Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:23
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/538
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
EQUIPMENT FOR USE IN DETERMINING THE MEAN OPTICAL DENSITY OF THE ATMOSPHERE, COMPRISING, IN COMBINATION: (A) TWO MOVABLE PHOTOSENSITIVE RECEIVERS FOR CONVERTING LIGHT INTO ELECTRICAL SIGNALS; (B) MEANS CONNECTED TO SAID RECEIVERS FOR SELECTIVELY TURNING EACH OF THEM INTO TWO DISTINCT ANGULAR OBSERVATION POSITIONS SO THAT BOTH WILL RECEIVE LIGHT FROM THE SAME PLACE; (C) AT LEAST ONE PROJECTOR MEANS FOR PROVIDING A LUMINOUS PENCIL AND DIRECTED TO FORM THE BISECTRIX OF THE SUCCESSIVE OBSERVATION ANGLES OF SAID RECEIVERS; (D) MEANS FOR CONTROLLING SAID PROJECTOR MEANS AND INCLUDING (1) A TIME BASE MECHANISM FOR TIMING PURPOSES, (2) A POWER SUPPLY, AND (3) A DEVICE FOR REMOTELY CONTROLLING SAID PROJECTOR MEANS; (E) AN ELECTRIC SIGNAL AMPLIFIER; (F) A SWITCH CONTROLLED BY SAID TIME BASE MECHANISM AND CONNECTED WITH SAID RECEIVERS FOR SUCCESSIVELY CONNECTING THE TWO RECEIVERS WITH SAID SIGNAL AMPLIFIER; AND (G) AN ELECTRIC SIGNAL MEASURING APPARATUS CONNECTED WITH SAID SIGNAL AMPLIFIER.
Claim 2
Dependent Claim
151 words
EQUIPMENT FOR USE IN DETERMINING THE MEAN OPTICAL DENSITY OF THE ATMOSPHERE, COMPRISING, IN COMBINATION: (A) TWO MOVABLE PHOTOSENSITIVE RECEIVERS FOR CONVERTING LIGHT INTO ELECTRICAL SIGNALS; (B) MEANS CONNECTED TO SAID RECEIVERS FOR SELECTIVELY TURNING EACH OF THEM INTO TWO DISTINCT ANGULAR OBSERVATION POSITIONS SO THAT BOTH WILL RECEIVE LIGHT FROM THE SAME PLACE; (C) AT LEAST ONE PROJECTOR MEANS FOR PROVIDING A LUMINOUS PENCIL AND DIRECTED TO FORM THE BISECTRIX OF THE SUCCESSIVE OBSERVATION ANGLES OF SAID RECEIVERS; (D) MEANS FOR CONTROLLING SAID PROJECTOR MEANS AND INCLUDING (1) A TIME BASE MECHANISM FOR TIMING PURPOSES, (2) A POWER SUPPLY, AND (3) A DEVICE FOR REMOTELY CONTROLLING SAID PROJECTOR MEANS; (E) AN ELECTRIC SIGNAL AMPLIFIER; (F) A SWITCH CONTROLLED BY SAID TIME BASE MECHANISM AND CONNECTED WITH SAID RECEIVERS FOR SUCCESSIVELY CONNECTING THE TWO RECEIVERS WITH SAID SIGNAL AMPLIFIER; AND (G) AN ELECTRIC SIGNAL MEASURING APPARATUS CONNECTED WITH SAID SIGNAL AMPLIFIER.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |