US3640757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame deposited oxide coating and method of making same
Assignee: Avco Corp
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Filing: 1968-08-09
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Granted: 1972-02-08
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Expires: 1988-08-09
Abstract
Abstract Very dense flame spraying deposited coatings containing an unusually high proportion of metal oxides are described and discussed. A preferred method for producing these coatings is described in detail. The coatings are produced by using usually corrosive oxidizing media in contact with the spray deposited particles.
Inventors
- 👤 Donald C Grubba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:06
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/22; B05B7/222; B05B7/226; C; C23; C23C; C23C4/00; C23C4/04; C23C4/10; C23C4/11; C23C4/12; C23C4/129
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A method of making a spray deposited coating comprising a high-velocity chemically reducing plasma effluent; fluidizing particles of a metal oxide formed from a metal found in Group VI and IV of the Periodic Table; with a heat disintegratable oxygen-releasing material within a stream of an oxidizing fluid; directing said laden oxidizing fluid into said plasma effluent to produce a particle laden oxygen effluent; and directing the laden oxygen released effluent to a substrate for depositing said particles on the substrate of a coating.
References Cited (Backward Citations)
GB863190A
Cited
US3219480A
Cited
US3114826A
Cited
GB1003118A
Cited
US3179784A
Cited
US3335025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |