US3240583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming multiple-bore tubing
Assignee: OI Glass Inc
•
Filing: 1963-01-02
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Granted: 1966-03-15
•
Expires: 1983-01-02
Abstract
No abstract record available.
Inventors
- 👤 Edward J Holler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
C; C03; C03B; C03B15/00; C03B15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN AN APPARTUS FOR DRAWING MULTIPLE-BORE GLASS TUBING, THE COMBINATION COMPRISING A CONTAINER FOR RETAINING A MASS OF MOLTEN GLASS, AN INTEGRAL HOLLOW SHAPING DEVICE MOUNTED WITHIN SAID CONTAINER AND HAVING ESSENTIALLY CO-PLANAR SHAPING SURFACES DISPOSED ADJACENT THE SURFACE OF SAID MOLTEN GLASS, SAID SHAPING DEVICE COMPRISING AT LEAST TWO HEAT-RESISTANT SEGEMENTED DISC MEMBERS AND A SURROUNDING ANNULAR RING MEMBER INTEGRALLY JOINED BY A PLURALITY OF RIGID ARM MEMBERS EXTENDING SUBSTANTIALLY BELOW THE MOLTEN GLASS SURFACE. EACH SAID DISC MEMBER HAVING A SURROUNDING UPWARDLYEXTENDING ANNULAR FLANGE EXTENDING ABOVE THE MOLTEN GLASS SURFACE,
Claim 2
Dependent Claim
92 words
IN AN APPARTUS FOR DRAWING MULTIPLE-BORE GLASS TUBING, THE COMBINATION COMPRISING A CONTAINER FOR RETAINING A MASS OF MOLTEN GLASS, AN INTEGRAL HOLLOW SHAPING DEVICE MOUNTED WITHIN SAID CONTAINER AND HAVING ESSENTIALLY CO-PLANAR SHAPING SURFACES DISPOSED ADJACENT THE SURFACE OF SAID MOLTEN GLASS, SAID SHAPING DEVICE COMPRISING AT LEAST TWO HEAT-RESISTANT SEGEMENTED DISC MEMBERS AND A SURROUNDING ANNULAR RING MEMBER INTEGRALLY JOINED BY A PLURALITY OF RIGID ARM MEMBERS EXTENDING SUBSTANTIALLY BELOW THE MOLTEN GLASS SURFACE. EACH SAID DISC MEMBER HAVING A SURROUNDING UPWARDLYEXTENDING ANNULAR FLANGE EXTENDING ABOVE THE MOLTEN GLASS SURFACE,
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |