US2904449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and compositions for flame spraying
Assignee: IIT Research Institute
•
Filing: 1955-07-26
•
Granted: 1959-09-15
•
Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Bradstreet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:42
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/12; C23C4/129; C23C4/04; C23C4/10; C23C4/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF APPLYING AN ADHERENT REFRACTORY COATING ONTO A SURFACE, WHICH COMPRISES INJECTING SOLID CRYSTALLINE PARTICLES OF AN OXYGEN-CONTAINING MATERIAL WHICH MATERIAL IS REFRACTORY AT 1200* C. INTO A GASEOUS STREAM BEING FED INTO A CONTINUOUS FLAME GENERATING DEVICE, MAINTAINING THE FLAME TEMPERATURE AND RESIDENCE TIME OF SAID PARTICLES IN SAID FLAME AT A VALUE TO HEAT THE PARTICLES TO SINTERING TEMPERATURE IN THE FLAME, AND IMPINGING THE HOT PARTICLES ON THE SURFACE TO FORM A CRYSTALLINE DEPOSIT OF THE RESULTING SINTERED PARTICLES AS AN ADHERENT COATING ON SAID SURFACE.
Claim 2
Independent Claim
91 words
THE METHOD OF APPLYING AN ADHERENT REFRACTORY COATING ONTO A SURFACE, WHICH COMPRISES INJECTING SOLID CRYSTALLINE PARTICLES OF AN OXYGEN-CONTAINING MATERIAL WHICH MATERIAL IS REFRACTORY AT 1200* C. INTO A GASEOUS STREAM BEING FED INTO A CONTINUOUS FLAME GENERATING DEVICE, MAINTAINING THE FLAME TEMPERATURE AND RESIDENCE TIME OF SAID PARTICLES IN SAID FLAME AT A VALUE TO HEAT THE PARTICLES TO SINTERING TEMPERATURE IN THE FLAME, AND IMPINGING THE HOT PARTICLES ON THE SURFACE TO FORM A CRYSTALLINE DEPOSIT OF THE RESULTING SINTERED PARTICLES AS AN ADHERENT COATING ON SAID SURFACE.
References Cited (Backward Citations)
GB179216A
Cited
GB543773A
Cited
US2462681A
Cited
US2775531A
Cited
US2711975A
Cited
US2663658A
Cited
US2707691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |