US3087064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of heat exchanger leaks
Assignee: Sinclair Research Inc
•
Filing: 1960-06-27
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Granted: 1963-04-23
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jay S Curtice
- 👤 Adolph I Snow
- 👤 Lloyd A Baillie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:13
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/20; G01M3/22; G01M3/226; G01M3/228; Y; Y10; Y10T; Y10T436/00; Y10T436/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD FOR DETECTING LEAKS IN FEED-EFFLUENT HEAT EXCHANGERS OF A CHEMICAL REACTOR SYSTEM WHICH COMPRISES INJECTING INTO A CHEMICAL FEEDSTOCK A RADIOACTIVE TRACER CAPABLE OF BEING AT LEAST ABOUT 90% CHEMICALLY CONVERTED UNDER REACTOR CONDITIONS BUT AT LEAST ABOUT 50% CHEMICALLY UNCONVERTED UNDER HEAT EXCHANGER CONDITIONS, PASSING SAID FEEDSTOCK TOGETHER WITH THE TRACER THROUGH SUCCESSIVELY THE FEED SIDE OF THE FEED-EFFLUENT HEAT EXCHANGER, REACTOR, AND THE EFFLUENT SIDE OF SAID HEAT EXCHANGER, TAKING A SAMPLE OF SAID EFFLUENT, SEPARATING FROM SAID SAMPLE CONVERTED TRACER, AND DETECTING THE RADIOACTIVITY OF THE REMAINING SAMPLE.
Claim 2
Independent Claim
93 words
A METHOD FOR DETECTING LEAKS IN FEED-EFFLUENT HEAT EXCHANGERS OF A CHEMICAL REACTOR SYSTEM WHICH COMPRISES INJECTING INTO A CHEMICAL FEEDSTOCK A RADIOACTIVE TRACER CAPABLE OF BEING AT LEAST ABOUT 90% CHEMICALLY CONVERTED UNDER REACTOR CONDITIONS BUT AT LEAST ABOUT 50% CHEMICALLY UNCONVERTED UNDER HEAT EXCHANGER CONDITIONS, PASSING SAID FEEDSTOCK TOGETHER WITH THE TRACER THROUGH SUCCESSIVELY THE FEED SIDE OF THE FEED-EFFLUENT HEAT EXCHANGER, REACTOR, AND THE EFFLUENT SIDE OF SAID HEAT EXCHANGER, TAKING A SAMPLE OF SAID EFFLUENT, SEPARATING FROM SAID SAMPLE CONVERTED TRACER, AND DETECTING THE RADIOACTIVITY OF THE REMAINING SAMPLE.
References Cited (Backward Citations)
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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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |