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Patent US3290772A successfully refreshed from Google Patents.
US3290772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a brazed joint
Assignee: General Electric Co
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Filing: 1964-02-05
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Granted: 1966-12-13
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Expires: 1984-02-05
Abstract
No abstract record available.
Inventors
- 👤 Donald W Crouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:37
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/20; B23K2101/00; B23K2101/04; B23K2101/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
233 words
A METHOD OF MAKING A BRAZED JOINT BETWEEN A METALLIC ROD AND A METALLIC PLATE THAT HAS AN OPENING THEREIN FOR RECEIVING SAID ROD, COMPRISING: (A) PROVIDING FIRST AND SECOND METALLIC RINGS, EACH HAVING PROTUBERANCES THAT EXTEND RADIALLY INWARLDY OF THE RING AND ARE SO LOCATED THAT THE PROTUBERANCES WILL FIRMLY ENGAGE THE OUTER PERIPHERY OF SAID ROD WHEN THE RING IS PLACED ABOUT THE ROD, (B) SLIDING SAID FIRST RING AXIALLY OF THE ROD INTO A PREDETERMINED POSITION ON THE ROD, (C) POSITIONING SAID PLATE ON SAID ROD WITH THE OPENING IN SAID PLATE RECEIVING SAID ROD AND THE PLATE LOCATED IMMEDIATELY ADJACENT SAID FIRST RING, (D) SLIDING SAID SECOND RING ONTO SAID ROD INTO A POSITION WHEREIN SAID TWO RINGS SANDWICH THE PLATE THEREBETWEEN AND PREVENT AXIAL MOVEMENT OF SAID PLATE RELATIVE TO SAID ROD, (E) PLACING A RING OF BRAZING METAL ABOUT SAID ROD ADJACENT ONE OF SAID METALLIC RINGS ON AN AXIAL SIDE OF SAID ONE RING OPPOSITE TO THE LOCATION OF SAID PLATE, (F) HEATING THE RESULTING ASSEMBLY WITH SAID BRAZING RING POSITIONED ABOVE SAID ONE METALLIC RING TO CAUSE MOLTEN BRAZING METAL TO FLOW AXIALLY OF SAID ROD PAST SAID ONE RING INTO THE SPACE BETWEEN THE OUTER PERIPHERY OF SAID ROD AND THE PLATE, (G) COOLING SAID ASSEMBLY TO CAUSE THE MOLTEN BRAZING METAL TO SOLIDIFY AND FORM A BOND BETWEEN SAID PLATE AND SAID ROD.
Claim 2
Independent Claim
233 words
A METHOD OF MAKING A BRAZED JOINT BETWEEN A METALLIC ROD AND A METALLIC PLATE THAT HAS AN OPENING THEREIN FOR RECEIVING SAID ROD, COMPRISING: (A) PROVIDING FIRST AND SECOND METALLIC RINGS, EACH HAVING PROTUBERANCES THAT EXTEND RADIALLY INWARLDY OF THE RING AND ARE SO LOCATED THAT THE PROTUBERANCES WILL FIRMLY ENGAGE THE OUTER PERIPHERY OF SAID ROD WHEN THE RING IS PLACED ABOUT THE ROD, (B) SLIDING SAID FIRST RING AXIALLY OF THE ROD INTO A PREDETERMINED POSITION ON THE ROD, (C) POSITIONING SAID PLATE ON SAID ROD WITH THE OPENING IN SAID PLATE RECEIVING SAID ROD AND THE PLATE LOCATED IMMEDIATELY ADJACENT SAID FIRST RING, (D) SLIDING SAID SECOND RING ONTO SAID ROD INTO A POSITION WHEREIN SAID TWO RINGS SANDWICH THE PLATE THEREBETWEEN AND PREVENT AXIAL MOVEMENT OF SAID PLATE RELATIVE TO SAID ROD, (E) PLACING A RING OF BRAZING METAL ABOUT SAID ROD ADJACENT ONE OF SAID METALLIC RINGS ON AN AXIAL SIDE OF SAID ONE RING OPPOSITE TO THE LOCATION OF SAID PLATE, (F) HEATING THE RESULTING ASSEMBLY WITH SAID BRAZING RING POSITIONED ABOVE SAID ONE METALLIC RING TO CAUSE MOLTEN BRAZING METAL TO FLOW AXIALLY OF SAID ROD PAST SAID ONE RING INTO THE SPACE BETWEEN THE OUTER PERIPHERY OF SAID ROD AND THE PLATE, (G) COOLING SAID ASSEMBLY TO CAUSE THE MOLTEN BRAZING METAL TO SOLIDIFY AND FORM A BOND BETWEEN SAID PLATE AND SAID ROD.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |