Patent US3011022A successfully refreshed from Google Patents.
US2785084A
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Coating ferrous metals with aluminum
Assignee: BIRGIT WALLER
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Filing: 1952-12-13
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Granted: 1957-03-12
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Expires: 1972-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lundin Helen Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/12; C22; C22B; C22B60/00; C22B60/02; C23C2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF FORMINF A CONTINUOUS TIGHTLY ADHERENT COATING OF ALUMINUM ON A BASED METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, CHROMIUM, TITANIUM, NICKEL, ION, AND ALLOYS THEREOF, WHICH COMPRISES THOROUGHLY CLEANING THE SURFACE OF SAID BASE METAL,THEN APPLYING TO SUCH CLEANED SURFACE A FLUX COMPRISING PRIMATILY A DOUBLE FLUORIDE OF POTASSIUM AND ALUMINUM CONTAINING FROM 45% TO 60% BY WEIGHT OF ALF3 AND HAVING A MELTING POINT BELOW 1300*F., AND THEN CONTACTING SUCH SURFACE OF THE BASE METAL WITH MOLTEN ALUMINUM.
Claim 2
Independent Claim
83 words
THE METHOD OF FORMINF A CONTINUOUS TIGHTLY ADHERENT COATING OF ALUMINUM ON A BASED METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, CHROMIUM, TITANIUM, NICKEL, ION, AND ALLOYS THEREOF, WHICH COMPRISES THOROUGHLY CLEANING THE SURFACE OF SAID BASE METAL,THEN APPLYING TO SUCH CLEANED SURFACE A FLUX COMPRISING PRIMATILY A DOUBLE FLUORIDE OF POTASSIUM AND ALUMINUM CONTAINING FROM 45% TO 60% BY WEIGHT OF ALF3 AND HAVING A MELTING POINT BELOW 1300*F., AND THEN CONTACTING SUCH SURFACE OF THE BASE METAL WITH MOLTEN ALUMINUM.
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) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |