US3266820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Assembly device for welded metal tubes
Assignee: Valeo SE
•
Filing: 1964-06-15
•
Granted: 1966-08-16
•
Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Leborgne Michel Henri Fernand
- 👤 Guinvarc H Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:24
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/02; F16L13/0254; F16L13/0263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A WELDED PIPE JOINT ASSEMBLY, COMPRISING A PAIR OF METAL PIPES HAVING A WELDED JOINT BETWEEN THEM, A PROTECTIVE LAYER OF MATERIAL HAVING A LOW MELTING POINT WITH ING THE PIPES, AND AN INTERNAL ASBESTOS SLEEVE DISPOSED AT THE ZONE OF THE WELD AND ADAPTED TO RESIST THE HEAT DEVELOPED DURING THE WELDING OPERATION, SAID PROTECTIVE LAYER BEING ELIMINATED AT THE ZONE OF THE WELD AND BEING REPLACED BY SAID SLEEVE, THE INNER SURFACE OF THE SLEEVE BEING EXPOSED TO THE FLOW OF FLUID IN SAID PIPES AND HAVING SUB-
Claim 2
Dependent Claim
90 words
A WELDED PIPE JOINT ASSEMBLY, COMPRISING A PAIR OF METAL PIPES HAVING A WELDED JOINT BETWEEN THEM, A PROTECTIVE LAYER OF MATERIAL HAVING A LOW MELTING POINT WITH ING THE PIPES, AND AN INTERNAL ASBESTOS SLEEVE DISPOSED AT THE ZONE OF THE WELD AND ADAPTED TO RESIST THE HEAT DEVELOPED DURING THE WELDING OPERATION, SAID PROTECTIVE LAYER BEING ELIMINATED AT THE ZONE OF THE WELD AND BEING REPLACED BY SAID SLEEVE, THE INNER SURFACE OF THE SLEEVE BEING EXPOSED TO THE FLOW OF FLUID IN SAID PIPES AND HAVING SUB-
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |