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Patent US2838378A successfully refreshed from Google Patents.
US2838378A
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Apparatus for measuring and controlling alkalinity of non-aqueous liquids
Assignee: Sunoco Inc
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Filing: 1950-10-27
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Granted: 1958-06-10
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Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Shawham Elbert Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:30
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/021; G01N31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
APPARATUS FOR DETERMINING THE ALKALINITY OF A NONAQUEOUS LIQUID, COMPRISING MEANS PROVIDING CONDUCTIVE PLATES, MEANS PROVIDING A SAMPLE OF THE LIQUID BETWEEN SAID PLATES TO ACT AS A DIELECTRIC THEREBETWEEN, MEANS PROVIDING AN ALTERNATING CURRENT SOURCE, MEANS APPLYING AN ALTERNATING POTENTIAL DERIVED FROM SAID SOURCE BETWEEN SAID PLATES, AND MEANS INCLUDING A SYNCHRONOUS RECTIFYING DEVICE CONNECTED TO THE CELL CONSISTING OF SAID PLATES AND THE LIQUID THEREBETWEEN AND TO SAID ALTERNATING CURRENT SOURCE FOR PROVIDING AN OUTPUT SIGNAL AS A MEASURE OF AN IMPEDANCE, HAVING A REACTIVE COMPONENT, PRESENTED BETWEEN SAID PLATES.
Claim 2
Dependent Claim
92 words
APPARATUS FOR DETERMINING THE ALKALINITY OF A NONAQUEOUS LIQUID, COMPRISING MEANS PROVIDING CONDUCTIVE PLATES, MEANS PROVIDING A SAMPLE OF THE LIQUID BETWEEN SAID PLATES TO ACT AS A DIELECTRIC THEREBETWEEN, MEANS PROVIDING AN ALTERNATING CURRENT SOURCE, MEANS APPLYING AN ALTERNATING POTENTIAL DERIVED FROM SAID SOURCE BETWEEN SAID PLATES, AND MEANS INCLUDING A SYNCHRONOUS RECTIFYING DEVICE CONNECTED TO THE CELL CONSISTING OF SAID PLATES AND THE LIQUID THEREBETWEEN AND TO SAID ALTERNATING CURRENT SOURCE FOR PROVIDING AN OUTPUT SIGNAL AS A MEASURE OF AN IMPEDANCE, HAVING A REACTIVE COMPONENT, PRESENTED BETWEEN SAID PLATES.
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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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |