US3149007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing compositions
Assignee: Handy and Harman
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Filing: 1962-05-14
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Granted: 1964-09-15
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Ernest S Chamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:08
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603; B23K35/3605; B23K35/24; B23K35/28; B23K35/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A BRAZING COMPOSITION SUITABLE FOR JOINING ALUMINUM AND ALUMINUM-BASE ALLOYS CONSISTING ESSENTIALLY OF (A) FROM 5% TO 25% BY WEIGHT ALUMINUM FLOURIDE, (B) FROM 1/4% TO 3% BY WEIGHT OF AN ALKALI METAL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CHLORIDE AND SODIUM CHLORIDE, (C) FROM 1/4% TO 5% BY WEIGHT OF A HYDROPHILIC THICKENING AGENT, AND (D) THE BALANCE AN ALUMINUM-BASE BRAZING ALLOY IN FINELY DIVIDED SOLID FORM, SAID COMPOSITION WHEN MIXED WITH WATER IN THE PROPERTIONS OF 1 TO 4 PARTS BY WEIGHT OF COMPOSITION TO 1 PART BY WEIGHT OF WATER FORMING A FIRM, EXTRUDABLE PASTE WHICH WHEN BAKED DRY IN CONTACT WITH A MEMBER TO BE BRAZED BECOMES HARD, STRONG AND FIRMLY ADHERENT THERETO.
Claim 2
Dependent Claim
119 words
A BRAZING COMPOSITION SUITABLE FOR JOINING ALUMINUM AND ALUMINUM-BASE ALLOYS CONSISTING ESSENTIALLY OF (A) FROM 5% TO 25% BY WEIGHT ALUMINUM FLOURIDE, (B) FROM 1/4% TO 3% BY WEIGHT OF AN ALKALI METAL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CHLORIDE AND SODIUM CHLORIDE, (C) FROM 1/4% TO 5% BY WEIGHT OF A HYDROPHILIC THICKENING AGENT, AND (D) THE BALANCE AN ALUMINUM-BASE BRAZING ALLOY IN FINELY DIVIDED SOLID FORM, SAID COMPOSITION WHEN MIXED WITH WATER IN THE PROPERTIONS OF 1 TO 4 PARTS BY WEIGHT OF COMPOSITION TO 1 PART BY WEIGHT OF WATER FORMING A FIRM, EXTRUDABLE PASTE WHICH WHEN BAKED DRY IN CONTACT WITH A MEMBER TO BE BRAZED BECOMES HARD, STRONG AND FIRMLY ADHERENT THERETO.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |