Method and apparatus for the manufacture of a contoured redrawn glass article
Abstract
Abstract THIS APPLICATION DISCLOSES APPARATUS AND METHOD FOR THE MANUFACTURE OF A REDRAWN VITREOUS OR GLASS ARTICLE, VIZ AN ARTICLE OF SUBSTANTIALLY GREATER LENGTH AND SUBSTANTIALLY REDUCED CROSS-SECTIONAL AREA THAN THE ORIGINAL ARTICLE, IN WHICH THE REDRAWN ARTICLE IS PROVIDED WITH A CROSS-SECTIONAL CONTOUR WHICH IS DIFFERENT FROM THAT OF THE ORIGINAL ARTICLE. CONTOURING IS ACCOMPLISHED BY PROVIDING A PAIR OF DIE MEMBERS HAVING OPPOSED, COMPLEMENTARY CONTOURED ARTICLE-CONTACTING SURFACES WHICH THE ARTICLE PASSES BETWEEN AND IN CONTACT THEREWITH ALONG ITS PATH OF TRAVEL AFTER THE ARTICLE HAS COOLED TO A SELF-SUSTAINING TEMPERATURE FOLLOWING THE LONGITUDINAL ELONGATION AND CROSSSECTIONAL CONTRACTION OF THE ARTICLE IN A HIGH TEMPERATURE ATTENUATION ZONE.
Inventors
- 👤 Glenn H Dunlap
- 👤 Anthony M Kobylak
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |