US3210980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical-seam tube-making installation
Assignee: DRIAM SA
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Filing: 1962-09-19
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Granted: 1965-10-12
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Expires: 1982-09-19
Abstract
No abstract record available.
Inventors
- 👤 Kurt E Sengel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:41
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
AN INSTALLATION FOR MANUFACTURING SEAM-WELDED HELICAL TUBES IN WHICH DURING TUBE MANUFACTURE THE ANGLE BETWEEN THE FEED DIRECTION OF THE BAND MATERIAL AND THE LINE DETERMINED BY THE CENTER POINTS OF CURVATURE OF THE CONCAVE SURFACE OF THE FORMING TOOL AS WELL AS THE ANGLE BETWEEN THIS LINE AND THE LONGITUDINAL AXIS OF THE TUBE IS ADAPTED TO BE CHANGED, COMPRISING FORMING TOOL MEANS, MEANS FOR FEEDING THE BAND MATERIAL TO SAID FORMING TOOL MEANS AT A PREDETERMINED FEED ANGLE, GUIDE MEANS FOR THE FINISHED TUBE, MEANS FOR RELATIVELY FIXEDLY SUPPORTING SAID GUIDE MEANS, AND MEANS FOR SWINGABLY SUPPORTING SAID FEED MEANS AND SAID FORMING TOOL MEANS.
Claim 2
Dependent Claim
107 words
AN INSTALLATION FOR MANUFACTURING SEAM-WELDED HELICAL TUBES IN WHICH DURING TUBE MANUFACTURE THE ANGLE BETWEEN THE FEED DIRECTION OF THE BAND MATERIAL AND THE LINE DETERMINED BY THE CENTER POINTS OF CURVATURE OF THE CONCAVE SURFACE OF THE FORMING TOOL AS WELL AS THE ANGLE BETWEEN THIS LINE AND THE LONGITUDINAL AXIS OF THE TUBE IS ADAPTED TO BE CHANGED, COMPRISING FORMING TOOL MEANS, MEANS FOR FEEDING THE BAND MATERIAL TO SAID FORMING TOOL MEANS AT A PREDETERMINED FEED ANGLE, GUIDE MEANS FOR THE FINISHED TUBE, MEANS FOR RELATIVELY FIXEDLY SUPPORTING SAID GUIDE MEANS, AND MEANS FOR SWINGABLY SUPPORTING SAID FEED MEANS AND SAID FORMING TOOL MEANS.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |