US3024175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant coating
Assignee: General Electric Co
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Filing: 1959-08-04
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Granted: 1962-03-06
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Expires: 1979-08-04
Abstract
No abstract record available.
Inventors
- 👤 Newell C Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A METHOD OF FORMING A BERYLLIDE COATING ON A METAL COMPOSITION HAVING A MELTING POINT OF AT LEAST 600*C. AT LEAST 50 MOL PERCENT OF SAID METAL COMPOSITION BEING AT LEAST ONE OF THE METALS SELECTED FROM THE GROUP OF METALS WHOSE ATOMIC NUMBERS ARE 21-29, 39-47, 57-79, AND 89-98, SAID METHOD COMPRISING (1) FORMING AN ELECTRIC CELL CONTAINING SAID METAL COMPOSITION AS THE CATHODE JOINED THROUGH AN EXTERNAL ELECTRICAL CIRCUIT TO A BERYLLIUM ANODE AND A FUSED SALT ELECTROLYTE COMPOSED ESSENTIALLY OF BERYLLIUM FLUORIDE AND FROM 10 TO 66I/3 MOL PERCENT OF AT LEAST ONE ALKALI METAL FLUORIDE, SAID ELECTROLYTE BEING MAINTAINED AT A TEMPERATURE OF ABOTU 600-900*C. BUT BELOW THE MELTING POINT OF SAID METAL COMPOSITION IN THE SUBSTANTIAL ABSENCE OF OXYGEN, (2) CONTROLLING THE CURRENT FLOWING IN SAID ELECTRIC CELL SO THAT THE CURRENT DENSITY OF THE CATHODE DOES NOT EXCEED 3 AMPERS PER SQUARE DECIMETER DURING THE FORMATION OF THE BERYLLIDE COATING, AND (3) INTERRUPTING THE FLOW OF ELECTRICAL CURRENT AFTER THE DESIRED THICKNESS OF BERYLLIDE COATING IS FORMED ON THE METAL COMPOSITION.
Claim 2
Independent Claim
177 words
A METHOD OF FORMING A BERYLLIDE COATING ON A METAL COMPOSITION HAVING A MELTING POINT OF AT LEAST 600*C. AT LEAST 50 MOL PERCENT OF SAID METAL COMPOSITION BEING AT LEAST ONE OF THE METALS SELECTED FROM THE GROUP OF METALS WHOSE ATOMIC NUMBERS ARE 21-29, 39-47, 57-79, AND 89-98, SAID METHOD COMPRISING (1) FORMING AN ELECTRIC CELL CONTAINING SAID METAL COMPOSITION AS THE CATHODE JOINED THROUGH AN EXTERNAL ELECTRICAL CIRCUIT TO A BERYLLIUM ANODE AND A FUSED SALT ELECTROLYTE COMPOSED ESSENTIALLY OF BERYLLIUM FLUORIDE AND FROM 10 TO 66I/3 MOL PERCENT OF AT LEAST ONE ALKALI METAL FLUORIDE, SAID ELECTROLYTE BEING MAINTAINED AT A TEMPERATURE OF ABOTU 600-900*C. BUT BELOW THE MELTING POINT OF SAID METAL COMPOSITION IN THE SUBSTANTIAL ABSENCE OF OXYGEN, (2) CONTROLLING THE CURRENT FLOWING IN SAID ELECTRIC CELL SO THAT THE CURRENT DENSITY OF THE CATHODE DOES NOT EXCEED 3 AMPERS PER SQUARE DECIMETER DURING THE FORMATION OF THE BERYLLIDE COATING, AND (3) INTERRUPTING THE FLOW OF ELECTRICAL CURRENT AFTER THE DESIRED THICKNESS OF BERYLLIDE COATING IS FORMED ON THE METAL COMPOSITION.
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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |