US3103809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for measuring polymer concentration
Assignee: Phillips Petroleum Co
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Filing: 1960-08-01
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Granted: 1963-09-17
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Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert F Dye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:36
CPC Classifications
G; G01; G01N; G01N7/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
A VAPOR PRESSURE ANALYZER FOR A POLYMER SOLUTION COMPRISING, IN COMBINATION, A SAMPLE CONDUIT FROM A PROCESS STREAM, VAPOR PRESSURE MEASURING MEANS IN SAID SAMPLE CONDUIT, SAID MEASURING MEANS COMPRISING A CHAMBER, A PISTON DISPOSED THEREIN, A CYCLE TIMING MEANS, MECHANICAL MEANS CONNECTED TO SAID CYCLE TIMING MEANS FOR RAISING AND LOWERING SAID PISTON AS DESIRED, FIRST AND SECOND VALVE MEANS DISPOSED AT THE INLET AND OUTLET ENDS, RESPECTIVELY, OF SAID MEASURING MEANS, ELECTRICAL MEANS CONNECTING SAID TIMING MEANS TO SAID FIRST AND SECOND VALVE MEANS AND SAID MEASURING MEANS, SO THAT SAID PISTON IS ADAPTED TO RECIPROCATE ONLY DURING THE TIME THAT BOTH SAID VALVE MEANS ARE CLOSED, AND CONDUIT MEANS FOR PASSING A PNEUMATIC SIGNAL FROM SAID VAPOR PRESSURE MEASURING MEANS TO A RECORDING DEVICE.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |