US3204332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making conduits
Assignee: Bendix Corp
•
Filing: 1962-01-31
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Granted: 1965-09-07
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 William J Blaisdell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:05
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE METHOD OF MAKING A CONDUIT WHICH COMPRISES A TRANSVERSELY CORRUGATED THIN-WALLED FLEXIBLE METAL TUBE AND AN ANNULAR METAL FITTING MEANS PERMANENTLY SECURED AND SEALED COAXIALLY OF THE TUBE AT ONE END THEREOF, WHICH INCLUDES THE STEPS OF PLACING COMMINUTED BRAZING METAL WITHIN AT LEAST THE FIRST AXIALLY CLOSED ANNULAR SPACE FORMED BY THE CORRUGATIONS OF THE TUBE WALL, TELESCOPING AN INNER METAL SLEEVE MEMBER PROVIDED WITH A RADIALLY EXTENDING ANNULAR SHOULDER WITHIN SAID END OF THE TUBE SO THAT THE SLEEVE PORTION THEREOF FILL CLOSE OFF SAID ANNULAR SPACE FILLED WITH SAID BRAZING METAL AND SO THAT THE ANNULAR SHOULDER WILL ABUT AND PROJECT RADIALLY OUTWARDLY OF THE END OF THE TUBE, PLACING A METAL OUTER SLEEVE OVER THE END PORTION OF SAID TUBE, AND APPLYING HEAT TO HEAT THE BRAZING METAL TO A FUSING TEMPERATURE TO BRAZE THE TUBE TO THE INNER SLEEVE MEMBER AND AT THE ADJACENT EDGES OF SAID SHOULDER AND THE OUTER SLEEVE TO WELD SUCH EDGES TOGETHER.
Claim 2
Independent Claim
163 words
THE METHOD OF MAKING A CONDUIT WHICH COMPRISES A TRANSVERSELY CORRUGATED THIN-WALLED FLEXIBLE METAL TUBE AND AN ANNULAR METAL FITTING MEANS PERMANENTLY SECURED AND SEALED COAXIALLY OF THE TUBE AT ONE END THEREOF, WHICH INCLUDES THE STEPS OF PLACING COMMINUTED BRAZING METAL WITHIN AT LEAST THE FIRST AXIALLY CLOSED ANNULAR SPACE FORMED BY THE CORRUGATIONS OF THE TUBE WALL, TELESCOPING AN INNER METAL SLEEVE MEMBER PROVIDED WITH A RADIALLY EXTENDING ANNULAR SHOULDER WITHIN SAID END OF THE TUBE SO THAT THE SLEEVE PORTION THEREOF FILL CLOSE OFF SAID ANNULAR SPACE FILLED WITH SAID BRAZING METAL AND SO THAT THE ANNULAR SHOULDER WILL ABUT AND PROJECT RADIALLY OUTWARDLY OF THE END OF THE TUBE, PLACING A METAL OUTER SLEEVE OVER THE END PORTION OF SAID TUBE, AND APPLYING HEAT TO HEAT THE BRAZING METAL TO A FUSING TEMPERATURE TO BRAZE THE TUBE TO THE INNER SLEEVE MEMBER AND AT THE ADJACENT EDGES OF SAID SHOULDER AND THE OUTER SLEEVE TO WELD SUCH EDGES TOGETHER.
References Cited (Backward Citations)
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US2399103A
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US2684043A
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US2678836A
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US2987329A
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |