US3235958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cladding by hydrostatic pressure applied to heated units inside a cold liquid cladding apparatus
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1962-09-24
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Granted: 1966-02-22
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Gauthron Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:40
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/06; B22F7/08; B23; B23K; B23K20/00; B23K20/02; B23K20/021; G; G21; G21C; G21C21/00; G21C21/02; G21C21/12; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
METHOD OF CLADDING BY HYDROSTATIC PRESSURE CONSISTING OF THE STEPS OF PLACING AN ELEMENT TO BE CLAD CONSISTING OF A FUEL PLATE SURROUNDED BY CLADDING MATERIAL INSIDE A FLEXIBLE ENVELOPE, THEN FILLING SAID ENVELOPE WITH A HEAT INSULATING POWDER AND SURROUNDING SAID ELEMENT WITH SAID POWDER, SAID POWDER BEING A REFRACTORY METAL, THEN SEALING SAID ENVELOPE, THEN COMPACTING SAID POWDER AROUND SAID ELEMENT BY APPLYING EXTERNALLY A COMPRESSIVE FORCE AGAINST SAID ENVELOPE, THEN REMOVING FROM SAID ENVELOPE THE BLOCK OF COMPACTED POWDER CONTAINING SAID ELEMENT, THEN INSERTING SAID BLOCK IN A FLEXIBLE CONTAINER AFTER ROUGH MACHINING SAID COMPACTED POWDER, THEN HEATING THE UNIT FORMED BY SAID CONTAINER AND SAID BLOCK UNTIL UNIFORMITY OF TEMPERATURE IS OBTAINED AND THEN APPLYING A COLD LIQUID HYDROSTATIC PRESSURE TO SAID HEATED UNIT TO CLAD SAID ELEMENT.
Claim 2
Dependent Claim
132 words
METHOD OF CLADDING BY HYDROSTATIC PRESSURE CONSISTING OF THE STEPS OF PLACING AN ELEMENT TO BE CLAD CONSISTING OF A FUEL PLATE SURROUNDED BY CLADDING MATERIAL INSIDE A FLEXIBLE ENVELOPE, THEN FILLING SAID ENVELOPE WITH A HEAT INSULATING POWDER AND SURROUNDING SAID ELEMENT WITH SAID POWDER, SAID POWDER BEING A REFRACTORY METAL, THEN SEALING SAID ENVELOPE, THEN COMPACTING SAID POWDER AROUND SAID ELEMENT BY APPLYING EXTERNALLY A COMPRESSIVE FORCE AGAINST SAID ENVELOPE, THEN REMOVING FROM SAID ENVELOPE THE BLOCK OF COMPACTED POWDER CONTAINING SAID ELEMENT, THEN INSERTING SAID BLOCK IN A FLEXIBLE CONTAINER AFTER ROUGH MACHINING SAID COMPACTED POWDER, THEN HEATING THE UNIT FORMED BY SAID CONTAINER AND SAID BLOCK UNTIL UNIFORMITY OF TEMPERATURE IS OBTAINED AND THEN APPLYING A COLD LIQUID HYDROSTATIC PRESSURE TO SAID HEATED UNIT TO CLAD SAID ELEMENT.
References Cited (Backward Citations)
US1081618A
Cited
US2932882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |