US2927043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum coating processes and compositions
Assignee: Solar Aircraft Co
•
Filing: 1957-02-20
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Granted: 1960-03-01
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Expires: 1977-02-20
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Stetson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:52
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C24/103; C23C24/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A METHOD OF APPLYING A PROTECTIVE ALUMINUM COATING TO THE SURFACE OF A METALLIC ARTICLE WHICH COMPRISES COATING SAID ARTICLE AT ROOM TEMPERATURE WITH A MIXTURE OF ALUMINUM IN PARTICLE FROM AND A WATER SOLUBLE FLUX IN AN ORGANIC VEHICLE, SAID MIXTURE CONTAINING A MINIMUM OF 25 PERCENT BY WEIGHT OF SAID FLUX, SAID FLUX CONSISTING ESSENTIALLY OF FROM 70 TO 88 PERCENT BY WEIGHT IN THE AGGREGATE OF CHORIDES OF POTASSIUM AND SODIUM PRESENT IN A POTASSIUM CHLORIDE-SODIUM CHLORIDE RATIO BETWEEN 1.3:1 AND 1:1.2, AND FROM 30 TO 12 PERCENT BY WEIGHT IN THE AGGREGATE OF LITHIUM FLORIDE, CRYLOITE AND ALUMINUM FLUORIDE, WITH THE LITHINUM FLUORIDE RANGING FROM 3.5 TO 20 PERCENT, CRYOLITE FROM 8.5 TO 20 PERCENT, AND ALUMINUM FLUORIDE 0 TO 20 PERCENT OF THE TOTAL, HEATING SAID COATED ARTICLE TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID FLUX AND SAID ALUMINUM POWDER TO CAUSE A LAYER ALUMINUM TO WET AND COVER THE ARTICLE, AND REMOVING SAID WATER SOLUBLE FLUX BY LEACHING IN WATER.
Claim 2
Independent Claim
168 words
A METHOD OF APPLYING A PROTECTIVE ALUMINUM COATING TO THE SURFACE OF A METALLIC ARTICLE WHICH COMPRISES COATING SAID ARTICLE AT ROOM TEMPERATURE WITH A MIXTURE OF ALUMINUM IN PARTICLE FROM AND A WATER SOLUBLE FLUX IN AN ORGANIC VEHICLE, SAID MIXTURE CONTAINING A MINIMUM OF 25 PERCENT BY WEIGHT OF SAID FLUX, SAID FLUX CONSISTING ESSENTIALLY OF FROM 70 TO 88 PERCENT BY WEIGHT IN THE AGGREGATE OF CHORIDES OF POTASSIUM AND SODIUM PRESENT IN A POTASSIUM CHLORIDE-SODIUM CHLORIDE RATIO BETWEEN 1.3:1 AND 1:1.2, AND FROM 30 TO 12 PERCENT BY WEIGHT IN THE AGGREGATE OF LITHIUM FLORIDE, CRYLOITE AND ALUMINUM FLUORIDE, WITH THE LITHINUM FLUORIDE RANGING FROM 3.5 TO 20 PERCENT, CRYOLITE FROM 8.5 TO 20 PERCENT, AND ALUMINUM FLUORIDE 0 TO 20 PERCENT OF THE TOTAL, HEATING SAID COATED ARTICLE TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID FLUX AND SAID ALUMINUM POWDER TO CAUSE A LAYER ALUMINUM TO WET AND COVER THE ARTICLE, AND REMOVING SAID WATER SOLUBLE FLUX BY LEACHING IN WATER.
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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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |