Patent US4379452A successfully refreshed from Google Patents.
US3202826A
Expired / Lapsed
US
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Haze meter
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-09-01
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Granted: 1965-08-24
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Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Greathouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:39
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/84; G01N21/85; G01N21/8507
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
AN APPARATUS ADAPTED FOR IMMERSION IN A FLUID TO MEASURE HAZE THEREIN, WHICH COMPRISES IN COMBINATION: (A) VERTICALLY EXTENDING CONTAINER SUBSTANTIALLY CLOSED AT ITS UPPER END AND OPEN AT ITS LOWER END, (B) A SOURCE OF RADIANT ENERGY CARRIED WITHIN SAID CONTAINER, (C) A SOURCE HOUSING ISOLATING SAID RADIANT ENERGY SOURCE FROM CONTACT WITH FLUID IN SAID CONTAINER AND HAVING A WINDOW POSITIONED TO DIRECT RADIANT ENERGY IN A PATH HAVING A GENERALLY LATERAL DIRECTION INTO FLUID WITHIN SAID CONTAINER, (D) A FIRSTDETECTOR OF RADIANT ENERGY CARRIED WITHIN SAID CONTAINER AT A POSITION SPACED LATERALLY FROM SAID RADIANT ENERGY SOURCE, (E) A FIRST DETECTOR HOUSING ISOLATING SAID FIRST DETECTOR FROM FLUID IN SAID CONTAINER AND HAVING A WINDOW IN ALIGNMENT WITH SAID FIRST DETECTOR AND THE DIRECT ENERGY PATH, (F) A SECOND DETECTOR OF RADIANT ENERGY CARRIED WITHIN SAID CONTAINER AT A POSITION LATERALLY SPACED FROM SAID ENERGY SOURCE AND FROM SAID FIRST DETECTOR, (G) A SECOND DETECTOR HOUSINGS ISOLATING SAID SECOND DETECTOR FROM FLUID IN SAID CONTAINER AND HAVING A WINDOW ALIGNED WITH SAID SECOND DETECTOR AND DEFINING THEREWITH A SCATTERED ENERGY WITH WHICH IS OUT OF ALIGNMENT WITH THE DIRECT ENERGY PATH, AND (H) MEANS RESPONSIVE TO SAID FIRST AND SECOND DETECTORS FOR COMPARING THE AMOUNTS OF RADIANT ENERGY RECEIVING BY SAID DETECTORS.
Claim 2
Independent Claim
215 words
AN APPARATUS ADAPTED FOR IMMERSION IN A FLUID TO MEASURE HAZE THEREIN, WHICH COMPRISES IN COMBINATION: (A) VERTICALLY EXTENDING CONTAINER SUBSTANTIALLY CLOSED AT ITS UPPER END AND OPEN AT ITS LOWER END, (B) A SOURCE OF RADIANT ENERGY CARRIED WITHIN SAID CONTAINER, (C) A SOURCE HOUSING ISOLATING SAID RADIANT ENERGY SOURCE FROM CONTACT WITH FLUID IN SAID CONTAINER AND HAVING A WINDOW POSITIONED TO DIRECT RADIANT ENERGY IN A PATH HAVING A GENERALLY LATERAL DIRECTION INTO FLUID WITHIN SAID CONTAINER, (D) A FIRSTDETECTOR OF RADIANT ENERGY CARRIED WITHIN SAID CONTAINER AT A POSITION SPACED LATERALLY FROM SAID RADIANT ENERGY SOURCE, (E) A FIRST DETECTOR HOUSING ISOLATING SAID FIRST DETECTOR FROM FLUID IN SAID CONTAINER AND HAVING A WINDOW IN ALIGNMENT WITH SAID FIRST DETECTOR AND THE DIRECT ENERGY PATH, (F) A SECOND DETECTOR OF RADIANT ENERGY CARRIED WITHIN SAID CONTAINER AT A POSITION LATERALLY SPACED FROM SAID ENERGY SOURCE AND FROM SAID FIRST DETECTOR, (G) A SECOND DETECTOR HOUSINGS ISOLATING SAID SECOND DETECTOR FROM FLUID IN SAID CONTAINER AND HAVING A WINDOW ALIGNED WITH SAID SECOND DETECTOR AND DEFINING THEREWITH A SCATTERED ENERGY WITH WHICH IS OUT OF ALIGNMENT WITH THE DIRECT ENERGY PATH, AND (H) MEANS RESPONSIVE TO SAID FIRST AND SECOND DETECTORS FOR COMPARING THE AMOUNTS OF RADIANT ENERGY RECEIVING BY SAID DETECTORS.
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |