Manufacture of rod-like articles having cores of fluent materials
Abstract
Abstract APPARATUS FOR MANUFACTURING A ROD-LIKE ARTICLE HAVING A FLEXIBLE TUBULAR CASING AND A CORE OF FLUENT MATERIAL, THE APPARATUS COMPRISING A MANDRIL AND A FIRST DIE ALIGNED AND SPACED APART THEREFROM SO TO DEFINE AN ANNULAR PASSAGE THEREWITH FOR FORMING A STRIP OF FLEXIBLE MATERIAL INTO A TUBULAR CASING, THE MANDRIL BEING ADAPTED TO PERMIT A FLUENT MATERIAL TO BE FED INTO THE TUBULAR CASING, A SECOND DIE HAVING AN OPENING OF CROSS-SECTIONAL AREA SMALLER THAN THAT OF THE FIRST DIE AND IN ALIGNMENT WITH THE OPENING OF THE FIRST DIE SO AS TO PERMIT THE TUBULAR CASING TO BE DISPLACED THROUGH THE DIES, AND MEANS FOR ADJUSTING THE SPACING BETWEEN THE DIE OPENINGS, A METHOD FOR MANUFACTURING ROD-LIKE ARTICLES HAVING A FLEXIBLE TUBULAR CASING AND A CORE OF FLUENT MATERIAL, USING THIS APPARATUS IS ALSO DISCLOSED.
Inventors
- 👤 Trevor Rex Gibbon
- 👤 Stephen Walters Kotze
Bibliographic Details
Claims Analysis
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |