Patent US3486010A successfully refreshed from Google Patents.
Patent US3033705A successfully refreshed from Google Patents.
US3033705A
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Method of applying an aluminum coating on ferrous metal article
Assignee: Motors Liquidation Co
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Filing: 1956-08-13
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Granted: 1962-05-08
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Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 Dean K Hanink
- 👤 Jr Albert A Shoudy
- 👤 Robert F Thomson
- 👤 August G Mette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:35
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/0221; B05B13/0235; C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
THE METHOD OF FORMING A HIGH TEMPERATURE OXIDATION AND CORROSION-RESISTANT FERROUS METAL VALVE ARTICLE WHICH COMPRISES PREHEATING TO A TEMPERATURE OF 200*F. TO 600* F. BY HIGH FREQUENCY INDUCTION AT LEAST A PORTION OF THE ARTICLE, SPRAYING MOLTEN ALUMINUM ONTO THE SAID PREHEATED PORTION WHILE ROTATING SAID ARTICLES TO PROVIDE A THIN UNIFORM LAYER OF ALUMINUM AN SAID PORTION, AND THEREAFTER DIFFUSING THE SPRAYED ALUMINUM TO A DEPTH WITHIN THE RANGE OF 0.00005 INCH TO 0.0015 INCH BY INDUCTION HEATING SAID PORTION AT A TEMPERATURE AND FOR ONLY A TIME SUFFICIENT TO CAUSE SAID DIFFUSION.
References Cited (Backward Citations)
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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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |