Patent US3444323A successfully refreshed from Google Patents.
US3597316A
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Nuclear reactor thermometry
Assignee: Panametrics LLC
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Filing: 1968-03-18
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Granted: 1971-08-03
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Expires: 1988-03-18
Abstract
Abstract A SYSTEM FOR MEASURING TEMPERATURE INSIDE A LIQUID COOLED NUCLEAR REACTOR BY MEASURING THE PROPAGATION OF PULSES OF ULTRASONIC ENERGY TRANSMITTED ALONG ELEMENTS OF THE REACTOR ITSELF. THE ULTRASONIC PULSES MAY BE TRANSMITTED ALONG THE CLADDING OF THE FUEL ELEMENTS, THROUGH THE FISSIONABLE MATERIAL OR THROUGH THE SPACER WIRES SURROUNDING EACH ELEMENT. SINCE THE PROGATION OF THE ULTRASONIC WAVES IN A MEDIUM IS A FUNCTION OF THE TEMPERATURE OF THE MEDIUM, THIS MEASURED PROPAGATION INDICATES THE TEMPERATURE.
Inventors
- 👤 Lawrence C Lynnworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:46
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/10; G21C17/112; G01; G01K; G01K11/00; G01K11/22; G01K11/24; G01N; G01N29/00; G01N29/04; G01N29/07; G01N2291/00; G01N2291/02; G01N2291/024; G01N2291/02416; G01N2291/028; G01N2291/02881; G01N2291/04; G01N2291/042; G01N2291/0421; G01N2291/0422; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |