US3304844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can body consisting of several layers, and procedure and device to manufacture it
Assignee: JA Schmalbach AG
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Filing: 1964-12-03
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Granted: 1967-02-21
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Klaus M Hosenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:59
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/0003; B31F1/0045; B31F1/0048; B31F1/0061; B31F1/0064; B31F1/0067; B31F1/007
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
IN APPARATUS OF THE CHARACTER DESCRIBED, A LONGITUDINALLY EXTENDING SHAPING MANDREL, INDIVIDUAL LAYER TAPE SUPPLY ROLLS, MEANS FOR DRAWING INDIVIDUAL TAPES OFF SAID ROLLS AND ONTO AND ALONG SAID MANDREL, MEANS FOR APPLYING AN ADHESIVE TO EACH SAID TAPE ON ITS WAY TO THE MANDREL, AND MEANS FOR SHAPING THE TAPES IN TUBULAR FORM ON THE MANDREL TO PROVIDE INDIVIDUAL TUBULAR LAYERS ONE WITHIN ANOTHER AND BONDED TO EACH OTHER EACH WITH LONGITUDINAL LAPPED MARGINS PRESENTING AN INNER AND AN OUTER CIRCUMFERENTIALLY PRESENTED TERMINAL EDGE AND WITH ALL SAID TERMINAL EDGES OF THE LAYERS EXCEPT THE OUTERMOST AND INNERMOST THEREOF CONTACTING BLUNTLY AND INTIMATELY IN BUTT-JOINT RELATION; WHEREIN EACH TAPE IS BROUGHT TO THE MANDREL INDIVIDUALLY OVER A DIRECTION CHANGE GUIDE IN A MANNER FOR PLACING THE TAPES ON THE MANDREL SEQUENTIALLY, SAID GUIDES BEING PLACED TO BRING ABOUT THE DESIRED LAPPING OF THE LAYERS IN CIRCUMFERENTIALLY STAGGERED RELATION ABOUT THE MANDREL.
References Cited (Backward Citations)
US445135A
Cited
US1634067A
Cited
US1969889A
Cited
US2083969A
Cited
US2246043A
Cited
US2256263A
Cited
US2422725A
Cited
US2424315A
Cited
US2660219A
Cited
US2714997A
Cited
US3134310A
Cited
US3185577A
Cited
US3190195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |