US3066042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating metal
Assignee: Engelhard Industries Inc
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Filing: 1959-11-27
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Granted: 1962-11-27
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Expires: 1979-11-27
Abstract
Abstract A method of coating a refractory metal body consisting essentially of Mo, Ta, W or Ti, comprises the steps of (1) cleaning the body, (2) spraying molten platinum group metals (e.g. Pt, Pd, Rh, or their alloys) on to the surface, (3) plastically deforming the coating (by shotpeening, pressing or rolling), and (4) heat treating the coated body at 600-1400 DEG C. for a time sufficient to promote solid diffusion of the coating (e.g. 1-10 hours). These steps (1)-(4) are repeated until a sufficient thickness of coating metal has been built up. The heat treating step may be carried out in dry hydrogen.
Inventors
- 👤 Ogden Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:58
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; B; B23; B23K; B23K35/00; B23K35/001; B23K35/005; C23C28/00; C23C28/02; C23C28/023; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/18; C23F; C23F17/00; C21; C21D; C21D7/00; C21D7/02; C21D7/04; C21D7/06
Claims Analysis
Total Claims: 0
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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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |