Patent US3557609A successfully refreshed from Google Patents.
US3557609A
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Method and apparatus for monitoring the paraffinicity characterization of hydrocarbon mixtures
Assignee: Texaco Inc
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Filing: 1969-03-27
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Granted: 1971-01-26
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Expires: 1989-03-27
Abstract
Abstract WHERE: K=THE WATSON-NELSON CHARACTERIZATION FACTOR OF THE HYDROCARBON MIXTURE; V8=THE SAYBOLT UNIVERSAL VISCOSITY OF THE HYDROCARBON MIXTURE; G=THE API GRAVITY OF THE HYDROCARBON MIXTURE AT 60* F.; AND A, B, AND C ARE PREDETERMINED CONSTANTS. A METHOD FOR DETERMINING THE WATSON-NELSON CHARACTERIZATION FACTOR OF HYDROCARBONS WHEREIN THE VISCOSITY AND GRAVITY ARE SENSED PROVIDING FIRST AND SECOND SIGNALS, RESPECTIVELY, CORRESPONDING TO THE SAYBOLT VISCOSITY AND API GRAVITY. THE SIGNALS ARE THEN COMBINED IN ACCORDANCE WITH THE FOLLOWING EQUATION: D R A W I N G
Inventors
- 👤 Robert A Woodle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:45
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/36; G01N11/00; G01N33/00; G01N33/26; G01N33/28; G01N33/2829; G06; G06G; G06G7/00; G06G7/48; G06G7/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |