US3223816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of electric arc butt welding
Assignee: Superheater Co Ltd
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Filing: 1963-12-09
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Granted: 1965-12-14
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Marsden Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; B23K9/0284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF BUTT WELDING TOGETHER TUBULAR MEMBERS USING AN AUTOMATIC ELECTRIC ARC WELDING PROCESS, COMPRISING THE STEPS OF: (A) SECURING THE SAID MEMBERS IN END-FACE ABUTTING RELATIONSHIP, AND (B) SUCCESSIVELY EFFECTING BUTT FUSION WELDS BETWEEN THE ABUTTING MEMBER USING AUTOMATIC WELDING METHODS, ONE OF SAID WELDS BEING EFFECTED INTERNALLY OF THE MEMBERS AND THE OTHER SAID WELD BEING EFFECTED EXTERNALLY OF THE SAID MEMBERS SO THAT THE TWO SAID WELD INTERFUSE WITH EACH OTHER THROUGH THE WALL THICKNESS OF THE SAID MEMBERS TO FORM A COMPOSITE FUSION WELDED JOINT BETWEEN THE SAID MEMBERS.
Claim 2
Independent Claim
94 words
A METHOD OF BUTT WELDING TOGETHER TUBULAR MEMBERS USING AN AUTOMATIC ELECTRIC ARC WELDING PROCESS, COMPRISING THE STEPS OF: (A) SECURING THE SAID MEMBERS IN END-FACE ABUTTING RELATIONSHIP, AND (B) SUCCESSIVELY EFFECTING BUTT FUSION WELDS BETWEEN THE ABUTTING MEMBER USING AUTOMATIC WELDING METHODS, ONE OF SAID WELDS BEING EFFECTED INTERNALLY OF THE MEMBERS AND THE OTHER SAID WELD BEING EFFECTED EXTERNALLY OF THE SAID MEMBERS SO THAT THE TWO SAID WELD INTERFUSE WITH EACH OTHER THROUGH THE WALL THICKNESS OF THE SAID MEMBERS TO FORM A COMPOSITE FUSION WELDED JOINT BETWEEN THE SAID MEMBERS.
References Cited (Backward Citations)
US2716691A
Cited
US2874263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |