Patent US2783420A successfully refreshed from Google Patents.
US2783420A
Expired / Lapsed
US
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Dielectric sensitive apparatus
Assignee: SINCLAIR RES LAB Inc
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Filing: 1952-08-09
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Granted: 1957-02-26
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Expires: 1972-08-09
Abstract
No abstract record available.
Inventors
- 👤 Lee E Thompson
- 👤 Lawrence W Stinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:48
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/223; Y; Y10; Y10S; Y10S55/00; Y10S55/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A COMPOSITE DIELECTRIC SENSITIVE CAPACITANCE TYPE CELL FOR A DETECTING A CHANGE IN COMPOSITION OF A FLOWING HYDROCARBON STREAM BY A CHANGE IN ITS DIELECTRIC PROPERTIES WHICH COMPRISES A REFERENCE CELL SITUATED WITHIN A SENSING CELL, SAID TWO CELLS HAVING A COMMON ELECTRODE THEREBETWEEN AND EACH OF SAID CELLS HAVING A SECOND ELECTRODE INSULATED FROM SAID COMMON ELECTRODE, MEANS FOR INTRODUCING A REFERENCE HYDROCARBON TO THE REFERENCE CELL, MEANS FOR INTRODUCING A HYDROCARBON STREAM INTO AND WITHDRAWING IT FROM THE SENSING CELL PROVIDING A FLOW AROUND THE REFERENCE CELL, AND PRESSURE EQUALIZING MEANS RESPONSIVE TO THE PRESSURE IN ONE CELL TO MAINTAIN THE PRESSURE IN THE OTHER CELL EQUALLY INTERPOSED BETWEEN THE CELLS.
Claim 2
Dependent Claim
113 words
A COMPOSITE DIELECTRIC SENSITIVE CAPACITANCE TYPE CELL FOR A DETECTING A CHANGE IN COMPOSITION OF A FLOWING HYDROCARBON STREAM BY A CHANGE IN ITS DIELECTRIC PROPERTIES WHICH COMPRISES A REFERENCE CELL SITUATED WITHIN A SENSING CELL, SAID TWO CELLS HAVING A COMMON ELECTRODE THEREBETWEEN AND EACH OF SAID CELLS HAVING A SECOND ELECTRODE INSULATED FROM SAID COMMON ELECTRODE, MEANS FOR INTRODUCING A REFERENCE HYDROCARBON TO THE REFERENCE CELL, MEANS FOR INTRODUCING A HYDROCARBON STREAM INTO AND WITHDRAWING IT FROM THE SENSING CELL PROVIDING A FLOW AROUND THE REFERENCE CELL, AND PRESSURE EQUALIZING MEANS RESPONSIVE TO THE PRESSURE IN ONE CELL TO MAINTAIN THE PRESSURE IN THE OTHER CELL EQUALLY INTERPOSED BETWEEN THE CELLS.
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) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |