US3248928A
Expired / Lapsed
US
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Pour point apparatus
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-08-01
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Granted: 1966-05-03
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 George E Conklin
- 👤 John J Heigl
- 👤 James A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:45
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02; G01N25/04; G01N33/00; G01N33/26; G01N33/28; G01N33/2811
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN APPARATUS FOR DETERMINING THE POUR POINT OF OILS COMPRISING A CONTAINER ADAPTED TO HOLD OIL AND MOUNTED AT THE TOP ON A RIGID AND STATIONARY HORIZONTAL AXLE AND THUS CAPABLE OF ROTATING IN A VERTICAL PLANE, A LIGHT BEAM SOURCE INTERGRAL WITH THE CONTAINER TOP AND POSITIONED TO PERMIT SAID BEAM TO DOWNWARDLY STRIKE THE SURFACE OF OIL WITHIN SAID CONTAINER, A TRANSPARENT MEMBER CONTAINING A PLURALITY OF DARK PARALLEL LINES POSITIONED IN FRONT OF SAID LIGHT BEAM, SAID PARALLEL LINES BEING PARALLEL TO THE AXIS OF ROTATION, A PHOTOELECTRIC CELL INTEGRAL WITH SAID CONTAINER TOP AND POSITIONED TO PERMIT THE LIGHT BEAM TO BE REFLECTED FROM THE OIL SURFACE ONTO SAID CELL ONLY UPON ANGULAR MOVEMENT OF SAID SURFACE WITH RESPECT TO SAID CONTAINER, A THERMOCOUPLE WITHIN SAID CONTAINER AND POSITIONED SO AS TO BE IMMERSED IN OIL WITHIN SAID CONTAINER, COOLING MEANS POSITIONED ABOUT SAID CONTAINER ADAPTED TO LOWER THE TEMPERATURE OF THE OIL WITHIN SAID CONTAINER AND MEANS FOR PERIODICALLY AND PARTIALLY SWINGING SAID CONTAINER ABOUT THE HORIZONTAL AXLE.
Claim 2
Independent Claim
173 words
AN APPARATUS FOR DETERMINING THE POUR POINT OF OILS COMPRISING A CONTAINER ADAPTED TO HOLD OIL AND MOUNTED AT THE TOP ON A RIGID AND STATIONARY HORIZONTAL AXLE AND THUS CAPABLE OF ROTATING IN A VERTICAL PLANE, A LIGHT BEAM SOURCE INTERGRAL WITH THE CONTAINER TOP AND POSITIONED TO PERMIT SAID BEAM TO DOWNWARDLY STRIKE THE SURFACE OF OIL WITHIN SAID CONTAINER, A TRANSPARENT MEMBER CONTAINING A PLURALITY OF DARK PARALLEL LINES POSITIONED IN FRONT OF SAID LIGHT BEAM, SAID PARALLEL LINES BEING PARALLEL TO THE AXIS OF ROTATION, A PHOTOELECTRIC CELL INTEGRAL WITH SAID CONTAINER TOP AND POSITIONED TO PERMIT THE LIGHT BEAM TO BE REFLECTED FROM THE OIL SURFACE ONTO SAID CELL ONLY UPON ANGULAR MOVEMENT OF SAID SURFACE WITH RESPECT TO SAID CONTAINER, A THERMOCOUPLE WITHIN SAID CONTAINER AND POSITIONED SO AS TO BE IMMERSED IN OIL WITHIN SAID CONTAINER, COOLING MEANS POSITIONED ABOUT SAID CONTAINER ADAPTED TO LOWER THE TEMPERATURE OF THE OIL WITHIN SAID CONTAINER AND MEANS FOR PERIODICALLY AND PARTIALLY SWINGING SAID CONTAINER ABOUT THE HORIZONTAL AXLE.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |