Patent US3563826A successfully refreshed from Google Patents.
US3563826A
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US
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Method of making a cylindrical article while cooling a mandrel to reduce frictional forces
Assignee: Automated Container Corp
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Filing: 1968-01-02
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Granted: 1971-02-16
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Expires: 1988-01-02
Abstract
Abstract THIS APPLICATION DISCLOSES THE CONSTRUCTION OF A CYLINDRICAL ARTICLE HAVING UTILITY IN THE MANUFACTURE OF CANTYPE CONTAINERS SAID ARTICLE COMPRISING INNER AND OUTER PLIES OF THERMOPLASTIC MATERIAL BONDED TO ONE ANOTHER BY A SUITABLE ADHESIVE. THE INNER AND OUTER PLIES OF THE ARTICLE ARE FORMED FROM SPIRALLY-WOUND STRANDS OF THERMOPLASTIC MATERIAL. THE APPLICATION ALOS DISCLOSES A SPIRALWINDING METHOD FOR FORMING SUCH A CYLINDRICAL ARTICLE IN WHICH A COOLING MEDIUM IS CIRCULATED THROUGH THE WINDING MANDREL TO REDUCE FRICTIONAL FORCES BETWEEN THE ARTICLE BEING FORMED AND THE WINDING MANDREL.
Inventors
- 👤 James C O'neal Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:57
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |