US2764536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential analyzer and control system
Assignee: Phillips Petroleum Co
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Filing: 1951-09-17
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Granted: 1956-09-25
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Expires: 1971-09-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Hutchins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:54
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/14; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A CONTROL SYSTEM FOR A COLUMN ADAPTED TO SEPARATE A FLUID MIXTURE INTO A PLURALITY OF PRODUCT STREAMS, WHICH COMPRISES IN COMBINATION, FIRST CONDUIT MEANS COMMUNICATING WITH A FIRST REGION IN THE COLUMN TO WITHDRAW A FIRST SAMPLE STREAM, AN ANALYZER TO MEASURE THE CONCENTRATION OF ONE OF THE COMPONENTS PRESENT IN SAID FIRST SAMPLE STREAM, MEANS RESPONSIVE TO THE OUTPUT OF SAID ANALYZER TO ADJUST THE OPERATION OF THE COLUMN TO MAINTAIN THE CONCENTRATION OF SAID ONE COMPONENT CONSTANT AT SAID FIRST REGION, SECOND CONDUIT MEANS COMMUNICATING WITH THE COLUMN AT A SECOND REGION SPACED FROM SAID FIRST REGION TO WITHDRAW A SECOND SAMPLE STREAM, A SECOND ANALYZER ADAPTEED TO MEASURE DIFFERENCES IN CONCENTRATION OF A COMPONENT OF THE FLUID MIXTURE IN SAID FIRST AND SECOND SAMPLE STREAMS, AND MEANS RESPONSIVE TO SAID SECOND ANALYZER TO ADJUST THE OPERATION OF THE COLUMN TO MAINTIAN A CONSTANT DIFFERENCE BETWEEN THE CONCENTRATION OF THE COMPONENT DETECTED BY SAID SECOND ANALYZER IN SAID FIRST AND SECOND SAMPLE STREAMS.
Claim 2
Dependent Claim
166 words
A CONTROL SYSTEM FOR A COLUMN ADAPTED TO SEPARATE A FLUID MIXTURE INTO A PLURALITY OF PRODUCT STREAMS, WHICH COMPRISES IN COMBINATION, FIRST CONDUIT MEANS COMMUNICATING WITH A FIRST REGION IN THE COLUMN TO WITHDRAW A FIRST SAMPLE STREAM, AN ANALYZER TO MEASURE THE CONCENTRATION OF ONE OF THE COMPONENTS PRESENT IN SAID FIRST SAMPLE STREAM, MEANS RESPONSIVE TO THE OUTPUT OF SAID ANALYZER TO ADJUST THE OPERATION OF THE COLUMN TO MAINTAIN THE CONCENTRATION OF SAID ONE COMPONENT CONSTANT AT SAID FIRST REGION, SECOND CONDUIT MEANS COMMUNICATING WITH THE COLUMN AT A SECOND REGION SPACED FROM SAID FIRST REGION TO WITHDRAW A SECOND SAMPLE STREAM, A SECOND ANALYZER ADAPTEED TO MEASURE DIFFERENCES IN CONCENTRATION OF A COMPONENT OF THE FLUID MIXTURE IN SAID FIRST AND SECOND SAMPLE STREAMS, AND MEANS RESPONSIVE TO SAID SECOND ANALYZER TO ADJUST THE OPERATION OF THE COLUMN TO MAINTIAN A CONSTANT DIFFERENCE BETWEEN THE CONCENTRATION OF THE COMPONENT DETECTED BY SAID SECOND ANALYZER IN SAID FIRST AND SECOND SAMPLE STREAMS.
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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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |