Patent US2805178A successfully refreshed from Google Patents.
US2805178A
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Welding flux composition
Assignee: Ampco Metal Inc
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Filing: 1953-04-20
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Granted: 1957-09-03
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Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 Garriott Francis Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:17
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603; B23K35/3605
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
A WELDING FLUX COMPOSITION FOR USE IN INERT GAS AND OXY-ACETYLENE WELDING OF BRONZES AND ADAPTED TO BE APPLIED WITH A VEHICLE AS A COATING TO THE SURFACES TO BE WELDED, CONSISTING ESSENTIALLY OF A MIXTURE OF FROM 20 TO 100 PARTS BY WEIGHT OF METAL FLUORIDES SELECTED FROM THE GROUP CONSISTING OF SODIUM FLUORIDE, POTASSIUM FLUORIDE, LITHIUM FLUORIDE, BARIUM FLUORIDE AND CRYOLITE AND CHARACTERIZED BY THE ABILITY TO PROVIDE A SLAG OF LOW VISCOSITY AND SURFACE TENSION, FROM 5 TO 20 PARTS BY WEIGHT OF AN ALKALI METAL FLUOROBORATE SELECTED FROM THE GROUP CONSISTING OF SODIUM FLUOROBORATE AND POTASSIUM FLUOROBORATE TO PROVIDE THE NECESSARY ADHERENCE TO ENABLE THE COMPOSITION TO ADHERE TO SAID SURFACES, AND AN ALKALI METAL CHLORIDE IN AN AMOUNT NOT EXCEEDING 20 PARTS BY WEIGHT TO IMPROVE THE FLOW CHARACTERISTICS OF THE COMPOSITION.
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) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |