Patent US4790850A successfully refreshed from Google Patents.
US2822609A
Expired / Lapsed
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Brazing process
Assignee: Niphos Corp
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Filing: 1955-11-10
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Granted: 1958-02-11
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Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Gerald J Horvitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:44
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF BRAZING METALLIC PARTS AND ARTICLES, COMPRISING PREPARING A MIXTURE OF PAINT-LIKE CONSISTENCY (A) FROM AN AMMONIUM PHOSHATE, (B) AT LEAST ONE OXIDE SELECTED FROM THE GROUP CONSISTING OF OXIDES OF NICKEL, COBALT, COPPER, MOLYBDENUM, TUNGSTEN AND IRON AND (C) FORM A JOINT; PAINTING THE EDGE PORTION OF THE JOINT WITH SAID MIXTURE; HEATING THE RESULTING ASSEMBLY IN A REDUCING SAID MIXTURE; HEATING THE RESULTING ASSEMBLY IN A REDUCING ATMOSPHERE IN ORDER TO CAUSE SAID MIXTURE TO DECOMPOSE AND FORM A METALLIC ALLOY COMPOSED OF THE ELEMENTS OF SAID MIXTURE AND TO CAUSE ALLOY TO FLOW INTO THE JOINT AND BRING ABOUT BRAZING OF THE METALLIC PARTS TO BE JOINED.
Claim 2
Independent Claim
112 words
A METHOD OF BRAZING METALLIC PARTS AND ARTICLES, COMPRISING PREPARING A MIXTURE OF PAINT-LIKE CONSISTENCY (A) FROM AN AMMONIUM PHOSHATE, (B) AT LEAST ONE OXIDE SELECTED FROM THE GROUP CONSISTING OF OXIDES OF NICKEL, COBALT, COPPER, MOLYBDENUM, TUNGSTEN AND IRON AND (C) FORM A JOINT; PAINTING THE EDGE PORTION OF THE JOINT WITH SAID MIXTURE; HEATING THE RESULTING ASSEMBLY IN A REDUCING SAID MIXTURE; HEATING THE RESULTING ASSEMBLY IN A REDUCING ATMOSPHERE IN ORDER TO CAUSE SAID MIXTURE TO DECOMPOSE AND FORM A METALLIC ALLOY COMPOSED OF THE ELEMENTS OF SAID MIXTURE AND TO CAUSE ALLOY TO FLOW INTO THE JOINT AND BRING ABOUT BRAZING OF THE METALLIC PARTS TO BE JOINED.
References Cited (Backward Citations)
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GB309032A
Cited
GB487263A
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US2200742A
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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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |