US3065537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of brazing
Assignee: Individual
•
Filing: 1958-03-27
•
Granted: 1962-11-27
•
Expires: 1978-03-27
Abstract
No abstract record available.
Inventors
- 👤 Patriarca Peter
- 👤 Gerald M Slaughter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:26
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3033; B23K35/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN IMPROVED METHOD OF BRAZING STRUCTURAL METAL PARTS, THE BASE METAL OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF IRON AND NICKEL, COMPRISING THE STEPS OF DISPOSING THE SURFACES OF SAID PARTS TO BE BRAZED IN CLOSELY-SPACED RELATIONSHIP, PLACING AT THE RESULTING GAP AREA BETWEEN THE SURFACES A MIXTURE CONSISTING OF DIBASIC AMMONIUM PHOSPHATE, CHROMIUM AND A NICKELIFEROUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF NICKEL AND NICKEL OXIDE IN A PROPORTION YIELDING AN ALLOY COMPRISING APPROXIMATELY 80% NICKEL, 10% PHOSPHORUS AND 10% CHROMIUM, THEN HEATING SAID METAL PARTS TO A TEMPERATURE OF AT LEAST 1800*F. AND MAINTAINING SAID METAL PARTS IN A REDUCING ATMOSPHERE OF DRY HYDROGEN DURING THE BRAZING OPERATION.
Claim 2
Dependent Claim
113 words
AN IMPROVED METHOD OF BRAZING STRUCTURAL METAL PARTS, THE BASE METAL OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF IRON AND NICKEL, COMPRISING THE STEPS OF DISPOSING THE SURFACES OF SAID PARTS TO BE BRAZED IN CLOSELY-SPACED RELATIONSHIP, PLACING AT THE RESULTING GAP AREA BETWEEN THE SURFACES A MIXTURE CONSISTING OF DIBASIC AMMONIUM PHOSPHATE, CHROMIUM AND A NICKELIFEROUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF NICKEL AND NICKEL OXIDE IN A PROPORTION YIELDING AN ALLOY COMPRISING APPROXIMATELY 80% NICKEL, 10% PHOSPHORUS AND 10% CHROMIUM, THEN HEATING SAID METAL PARTS TO A TEMPERATURE OF AT LEAST 1800*F. AND MAINTAINING SAID METAL PARTS IN A REDUCING ATMOSPHERE OF DRY HYDROGEN DURING THE BRAZING OPERATION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |