US3101532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-leveling welding ring of triangular cross-section
Assignee: Babcock and Wilcox Co
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Filing: 1957-08-01
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Granted: 1963-08-27
•
Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Christensen Magnus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:11
CPC Classifications
B; B23; B23K; B23K33/00; B23K33/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A METHOD OF BUTT WELDING A PAIR OF TUBULAR MEMBERS IN END-TO-END RELATIONSHIP COMPRISING THE STEPS OF FORMING A LEVEL ON THE ENDS OF THE RESPECTIVE TUBULAR MEMBERS SO THAT WHEN SAID BEVELED ENDS OF SAID TUBULAR MEMBERS ARE ARRANGED IN SUBSTANTIALLY END-TO-END RELATIONSHIP AN OUTWARDLY OPENING V-SHAPED WELDING GROOVE IS FORMED THEREBETWEEN, CENTERING A BACKING AND FILLER RING OF TRIANGULAR CROSS SECTION AND HAVING AN INNER DIAMETER SUBSTANTIALLY EQUAL TO THE INNER DIAMETER OF SAID TUBULAR MEMBERS AND AN OUTER DIAMETER LESS THAN THE OUTER DIAMETER OF SAID TUBULAR MEMBERS TO THE BEVELED END OF ONE TUBE SO THAT THE APEX OF THE TRIANGULAR RING SUBSTANTIALLY COINCIDE WITH THE INNER DIAMETER OF THE TUBE WITH THE SIDE OF SAID RING BEING DISPOSED IN ABUTTING RELATIONSHIP TO THE BEVELED END OF SAID ONE TUBE CENTERING THE BEVELED END OF THE OTHER TUBE ONTO THE OTHER SIDE OF SAID RING, AND DEPOSITING A MOLTEN WELD MATERIAL INTO SAID WELDING GROOVE SO AS TO FUSE TOGETHER THE TUBULAR MEMBERS AND SAID RING POSITIONED THEREBETWEEN.
Claim 2
Dependent Claim
184 words
IN COMBINATION, A PAIR OF TUBULAR ELEMENTS AND A PREFORMED WELD BACKING AND FILLER RING PROVIDING A SOLID BACKING FOR AND INCLUSION IN THE ROOT PASS IN FUSION BUTT WELDING IN END-TO-END RELATION SAID TUBULAR ELEMENTS, SAID TUBULAR ELEMENTS HAVING BEVELED ENDS FORMING, WHEN ARRANGED IN SUBSTANTIALLY ABUTTING RELATION, A WELDING GROOVE HAVING AN OUTWARDLY OPENING V-SHAPED ACROSS SECTION, SAID RING COMPRISING A BARE METAL OF SUBSTABTIALLY THE SAME CHARACTER OF THE METAL OF SAID TUBULAR ELEMENTS AND ADAPTED TO FUSE WITH THE METAL OF SAID TUBULAR ELEMENTS UPON THE APPLICATION OF WELDING HEAT, SAID RING COMPRISING AN ANNULUS HAVING CONNECTING SIDES DEFINING A TRIANGLE IN CROSS SECTION WITH THE APEX OF THE TRIANGLE AT THE INNER PERIPHERY OF SAID ANNULUS, THE INNER DIAMETER OF SAID ANNULUS BEING SUBSTANTIALLY EQUAL TO THE INNER DIAMETER OF SAID TUBULAR ELEMENTS AND ITS OUTER DIAMETER SUBSTANTIALLY LESS THAN THE OUTER DIAMETER OF SAID TUBULAR ELEMENTS, SAID RING ENGAGING SAID TUBULAR ELEMENTS WITH ITS SIDES ADJACENT SAID APEX IN SUBSTANTIALLY ABUTTING RELATIONSHIP WITH SAID BEVELED ENDS, AND MEANS FOR MAINTAINING SAID RING IN ENGAGEMENT WITH SAID TUBULAR ELEMENTS.
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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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |