Patent US2557798A successfully refreshed from Google Patents.
Patent US3597176A successfully refreshed from Google Patents.
US3597176A
Expired / Lapsed
US
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Method and apparatus for manufacturing beads
Assignee: AGC Glass Europe SA
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Filing: 1968-03-07
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Granted: 1971-08-03
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Expires: 1988-03-07
Abstract
Abstract A METHOD AND APPARATUS FOR PRODUCING GRAINS BY CUTTING A THREAD OF MOLTEN MATERIAL WITH THE PROJECTING ARMS OF* A ROTATING MEMBER, PERMITTING THE MOLTEN MATERIAL SEGMENTS TO SPREAD OUT AND FLOW OUTWARDLY ALONG THE ARMS AND TO BE EXPELLED FROM THE ENDS OF THE ARMS UNDER THE INFLUENCE OF CENTRIFUGAL FORCES SO AS TO BE DISPERSED INTO PARTICLES, MAINTAINING THE MATERIAL AT A TEMPERATURE ABOVE ITS MELTING POINT AS IT MOVES ALONG THE ARMS AND EVENTUALLY SUBSTANTIALLY ABOVE ITS MELTING POINT AS IT TRAVELS THROUGH SPACE AFTER BEING EXPELLED THEREFROM FOR PERMITTING THE PARTICLES TO SPHERULIZE, COOLING THE PARTICLES TO SOLIDIFY THEM, AND COLLECTING THE RESULTING SOLIDIFIED GRAINS.
Inventors
- 👤 Emile Plumat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:09
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/10; C03B19/1005; C03B19/1015
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |