US3679460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite wear resistant material and method of making same
Assignee: Praxair ST Technology Inc
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Filing: 1970-10-08
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Granted: 1972-07-25
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Expires: 1990-10-08
Abstract
Abstract A METHOD OF FORMING A METAL OXIDE COATING UPON A WORKPIECE, WHICH COATING MAY HAVE A CLOSELY CONTROLLED SURFACE ROOUHNESS OVER A WIDE RANGE OF COATING THICKNESSES. THE METHOD CONSISTS OF APPLYING A METAL OXIDE BASE COATING BY AN ARC TORCH DEPOSITION PROCESS AND THEREAFTER APPLYING A TOP FURFACE COATING OF METAL OXIDE WITH A DETONATION GUN DEPOSITION PROCESS. A WEAR-RESISTANT COMPOSITE COATING HAVING AN ARC TORCH-APPLIED BASE PORTION WITH A ROUGHNES OF 100 A.A. TO 150 A.A. COMBINED WITH A DETONATION GUM-APPLIED TOP SURFACE COATING HAVING SURFACE ROUGHNESS OF 150 A.A. TO 450 A.A. IS ALSO DISCLOSED AS A PREFERRED TEXTILE SURFACE.
Inventors
- 👤 Edwin Durham Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:34
CPC Classifications
C; C23; C23C; C23C28/00; C23C24/00; C23C4/00; C23C4/02; C23C4/04; C23C4/10; C23C4/11; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |