US3354535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite cylindrical structure and method of making it
Assignee: ThyssenKrupp Budd Co
•
Filing: 1965-09-14
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Granted: 1967-11-28
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Expires: 1985-09-14
Abstract
No abstract record available.
Inventors
- 👤 Henry F Winnai
- 👤 Jay F Whitsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:25
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/14; B21D22/16; B21H; B21H1/00; B21H1/02; B21H1/04; B21H7/00; B21H7/18; B23; B23P; B23P11/00; B23P11/02; B23P11/025; F; F16; F16D; F16D65/00; F16D65/02; F16D65/10; F16D2065/13; F16D2065/1304; F16D2065/132; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49908; Y10T29/53; Y10T29/53709; Y10T29/53717
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE METHOD OF FORMING A COMPOSITE CYLINDRICAL METAL STRUCTURE WHICH COMPRISES, SECURING A METAL LINER ON A HARD ROTARY MANDREL, SECURING A METAL DISK ON THE MANDREL BEYOND ONE END OF THE LINER, AND ROLL-FORMING AN ANNULAR EDGE OF THE DISK UNDER HIGH PRESSURE DOWN ON THE LINER WITH SUFFICIENT HEAT DIFFERENTIAL TO HEAT-SHRINK THE SHELL FORMED FROM THE DISK DOWN ON THE LINER.
Claim 2
Independent Claim
64 words
THE METHOD OF FORMING A COMPOSITE CYLINDRICAL METAL STRUCTURE WHICH COMPRISES, SECURING A METAL LINER ON A HARD ROTARY MANDREL, SECURING A METAL DISK ON THE MANDREL BEYOND ONE END OF THE LINER, AND ROLL-FORMING AN ANNULAR EDGE OF THE DISK UNDER HIGH PRESSURE DOWN ON THE LINER WITH SUFFICIENT HEAT DIFFERENTIAL TO HEAT-SHRINK THE SHELL FORMED FROM THE DISK DOWN ON THE LINER.
References Cited (Backward Citations)
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Cited
US1766956A
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US1822814A
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US1974662A
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US2044924A
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US2084814A
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US2180992A
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US3005259A
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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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |