US3083569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for metering flow
Assignee: Phillips Petroleum Co
•
Filing: 1958-12-01
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Granted: 1963-04-02
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Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 John C Thomas
- 👤 Lyman W Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:27
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/86
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
176 words
APPARATUS FOR CONTINUOUSLY DETERMINING THE FLOW RATE OF A FIRST COMPONENT OF A TWO-COMPONENT LIQUID STREAM WHEREIN THE SPECIFIC GRAVITIES OF THE COMPONENTS DIFFER, WHICH COMPRISES MEANS FOR CONTINUOUSLY DETERMINING THE SPECIFIC GRAVITY OF SAID STREAM AND FOR PRODUCING AN ELECTRICAL SIGNAL PROPORTIONAL TO SAID SPECIFIC GRAVITY; A SUMMING JUNCTION; MEANS TO PASS THE SIGNAL PROPORTIONAL TO SPECIFIC GRAVITY TO SAID SUMMING JUNCTION; A POTENTIOMETER CONNECTED AT ONE END TO A FIXED VOLTAGE AND AT THE OTHER END TO GROUND AND HAVING ITS CONTACTOR CONNECTED TO SAID SUMMING JUNCTION AND POSITIONED ON SAID POTENTIOMETER SO THAT THE SIGNAL FROM SAID POTENTIOMETER IS REPRESENTATIVE OF A REFERENCE CONCENTRATION OF SAID FIRST COMPONENT IN SAID STREAM AND THE SIGNAL FROM SAID SUMMING JUNCTION IS REPRESENTATIVE OF THE CONCENTRATION OF THE FIRST COMPONENT IN SAID STREAM; A SUMMING AMPLIFIER; MEANS TO PASS THE SIGNAL FROM SAID SUMMING JUNCTION TO SAID SUMMING AMPLIFIER; MEANS FOR CONTINUOUSLY DETERMINING THE FLOW RATE OF SAID STREAM AND FOR PRODUCING AN ELECTRICAL SIGNAL PROPORTIONAL TO SAID FLOW RATE; MEANS FOR MULTIPLYING THE SIGNAL PROPORTIONAL
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |