US3358113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the continuous production of thin-walled steel pipes and apparatus for putting this process into effect
Assignee: MINISTERSTWO OBRONY NARODOWEJ
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Filing: 1964-05-11
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Granted: 1967-12-12
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Pelczynski Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:34
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B23; B23K; B23K11/00; B23K11/06; B23K11/061; B23K11/062; B23K11/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD FOR THE CONTINUOUS PRODUCTION OF THINWALLED STEEL PIPE OF INDETERMINATE LENGTH COMPRISING FORMING A PIPE BY TRANSLATING A STRIP OF MATERIAL WHILE BENDING IT INTO A GENERALLY CYLINDRICAL SHAPE WITH LONGITUDINAL EDGES IN OVERLAPPED RELATION, AND PASSING BOTH SUBSTANTIALLY RADIAL FORCES AND ELECTRIC CURRENT THROUGH SAID OVERLAPPED MATERIAL, THROUGH A CURRENT CONDUCTING AND FORCE TRANSMITTING STRUCTURE IN SAID PIPE AND THROUGH A PORTION OF SAID PIPE CIRCUMFERENTIALLY REMOTE FROM SAID SEAM INTO A FORCE SUSTAINING AND CURRENT TRANSMITTING STRUCTURE ON THE OUTSIDE OF SAID PIPE AT SAID REMOTE PIPE PORTION.
Claim 2
Independent Claim
92 words
A METHOD FOR THE CONTINUOUS PRODUCTION OF THINWALLED STEEL PIPE OF INDETERMINATE LENGTH COMPRISING FORMING A PIPE BY TRANSLATING A STRIP OF MATERIAL WHILE BENDING IT INTO A GENERALLY CYLINDRICAL SHAPE WITH LONGITUDINAL EDGES IN OVERLAPPED RELATION, AND PASSING BOTH SUBSTANTIALLY RADIAL FORCES AND ELECTRIC CURRENT THROUGH SAID OVERLAPPED MATERIAL, THROUGH A CURRENT CONDUCTING AND FORCE TRANSMITTING STRUCTURE IN SAID PIPE AND THROUGH A PORTION OF SAID PIPE CIRCUMFERENTIALLY REMOTE FROM SAID SEAM INTO A FORCE SUSTAINING AND CURRENT TRANSMITTING STRUCTURE ON THE OUTSIDE OF SAID PIPE AT SAID REMOTE PIPE PORTION.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |