Patent US2932885A successfully refreshed from Google Patents.
US2932885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and pack for making zirconium-clad steel plate
Assignee: —
•
Filing: —
•
Granted: 1960-04-19
•
Expires: 1977-04-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:14
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/18; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/302; Y10T29/303; Y10T29/305; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12271; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12861; Y10T428/12951
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
THE METHOD OF CLADDING STEEL PLATES WITH A ZIRCONIUM SHEET WHICH COMPRISES ELECTRO-PLATING ONE SIDE SURFACE OF A ZIRCONIUM SHEET WITH METAL FROM THE CLASS OF IRON AND NICKEL TO OBTAILN A DEPOSIT OF APPROXIMATELY 0.002 TO 0.003 INCH, COATING ONE SIDE OF A STEEL PLATE WITH PARTING MATERIAL, DRYING SAID PARTING MATERIAL, PLACING THE UNPLATED SURFACE OF THE ZIRCONIUM SHEET AGAINST THE DRY PARTING MATERIAL, BRINGING A SECOND STEEL PLATE INTO ENGAGEMENT WITH THE PLATED SURFACE OF THE ZIRCONIUM SHEET, SPACING THE EDGES OF SAID SHEET INWARDLY FROM THE EDGES OF SAID PLATES TO FORM A PERIPHERAL RECESS AROUND THE EDGES OF SAID SHEET, WELDING SPACER BARS BETWEEN THE EDGES OF SAID PLATES TO FORM A SEALED CHAMBER AROUND THE EDGES OF SAID SHEET, PROVIDING SAID CHAMBER WITH A GAS INLET AND A GAS OUTLET, FLOWING AN INERT GAS THROUGH SAID CHAMBER TO PURGE IT OF AIR, HEATING THE ASSEMBLED PACK TO A TEMPERATURE BETWEEN APPROXIMATELY 1000*F. AND 1550*F. TO PROMOTE BONDING OF THE ZIRCONIUM SHEET TO SAID SECOND PLATE WHILE MAINTAINING THE FLOW OF GAS, AND ROLLING THE PACK TO AN EXTENT SUFFICIENT TO BOND THE ZIRCONIUM SHEET TO SAID SECOND PLATE.
Claim 2
Independent Claim
194 words
THE METHOD OF CLADDING STEEL PLATES WITH A ZIRCONIUM SHEET WHICH COMPRISES ELECTRO-PLATING ONE SIDE SURFACE OF A ZIRCONIUM SHEET WITH METAL FROM THE CLASS OF IRON AND NICKEL TO OBTAILN A DEPOSIT OF APPROXIMATELY 0.002 TO 0.003 INCH, COATING ONE SIDE OF A STEEL PLATE WITH PARTING MATERIAL, DRYING SAID PARTING MATERIAL, PLACING THE UNPLATED SURFACE OF THE ZIRCONIUM SHEET AGAINST THE DRY PARTING MATERIAL, BRINGING A SECOND STEEL PLATE INTO ENGAGEMENT WITH THE PLATED SURFACE OF THE ZIRCONIUM SHEET, SPACING THE EDGES OF SAID SHEET INWARDLY FROM THE EDGES OF SAID PLATES TO FORM A PERIPHERAL RECESS AROUND THE EDGES OF SAID SHEET, WELDING SPACER BARS BETWEEN THE EDGES OF SAID PLATES TO FORM A SEALED CHAMBER AROUND THE EDGES OF SAID SHEET, PROVIDING SAID CHAMBER WITH A GAS INLET AND A GAS OUTLET, FLOWING AN INERT GAS THROUGH SAID CHAMBER TO PURGE IT OF AIR, HEATING THE ASSEMBLED PACK TO A TEMPERATURE BETWEEN APPROXIMATELY 1000*F. AND 1550*F. TO PROMOTE BONDING OF THE ZIRCONIUM SHEET TO SAID SECOND PLATE WHILE MAINTAINING THE FLOW OF GAS, AND ROLLING THE PACK TO AN EXTENT SUFFICIENT TO BOND THE ZIRCONIUM SHEET TO SAID SECOND PLATE.
References Cited (Backward Citations)
US1679518A
Cited
US2059584A
Cited
US2474682A
Cited
US2416400A
Cited
US2473712A
Cited
US2478037A
Cited
US2576793A
Cited
US2786265A
Cited
US2713196A
Cited
US2798843A
Cited
US2850798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |