US3192473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting changes in composition of liquid flowing through a pipe line
Assignee: Pure Oil Co
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Filing: 1960-12-05
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Granted: 1965-06-29
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
F; F17; F17D; F17D3/00; F17D3/03; F17D3/05; Y; Y10; Y10S; Y10S128/00; Y10S128/13
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
APPARATUS FOR DETECTING CHANGE IN COMPOSITION OF LIQUID FLOWING THROUGH A PIPE LINE CONSISTING OF A PAIR OF PARALLEL CONDUITS IN LIQUID COMMUNICATION WITH SAID LINE, MEANS CONNECTED TO ONE OF SAID CONDUITS FOR PRODUCING THE PREDETERMINED DELAY IN FLOW THERETHROUGH OF LIQUID HAVING ITS ORIGINAL COMPOSITION AS COMPARED TO FLOW OF LIQUID OF THE SAME COMPOSITION THROUGH THE OTHER CONDUIT, THROTTLING VALVES IN THE UPSTREAM END OF SAID BRANCHES, AND MEANS FOR DETECTING A DIFFERENCE IN THE SAME PHYSICAL PROPERTY OF THE LIQUID, IN EACH OF SAID CONDUITS AT SUBSTANTIALLY THE SAME POINT DOWNSTREAM OF SAID MEANS FOR PRODUCING DELAY IN FLOW OF LIQUID WHEREBY SAID DIFFERENCE INDICATES A CHANGE IN LIQUID COMPOSITION PASSING THROUGH SAID PIPE LINE.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |