US3233995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for producion of continuous fire-polished glass sheet
Assignee: AGC Glass Europe SA
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Filing: 1965-06-01
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Granted: 1966-02-08
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Gustave Javaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:52
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A PROCESS FOR THE PRODUCTION OF FIRE POLISHED GLASS COMPRISING FORMING A CONTINUOUS SHEET OF GLASS, FORMING IN A TANK, A BATH OF MOLTEN METAL AT A WORKING TEMPERATURE ABOVE 750*C., SAID MOLTEN METAL BEING INERT TO AIR, TO THE GLASS AND TO THE TANK, SLIDING SAID CONTINUOUS SHEET LONGITUDINALLY ON SAID BATH AND MOVING THE SHEET ALONG THE BATH WITH THE USE OF SOLID MEMBERS ACTING ON THE SHEET WHICH HAS LEFT THE BATH, MAINTAINING ABOVE 750* C. THE TEMPERATURE OF THE BATH WHERE THE CONTINUOUS GLASS SHEET COMES INTO CONTACT WITH SAID MOLTEN METAL, AND DIMINISHING THE TEMPERATURE OF THE SHEET IN THE SLIDING DIRECTION OF THE SHEET, THE REDUCTION OF TEMPERATURE BEING SUFFICIENT TO AVOID DAMAGE OF THE SHEET DUE TO BEING MECHANICALLY ACTED UPON BY THE SOLID MEMBERS, SAID BATH OF MOLTEN BEING SELECTED FROM THE GROUP CONSISTING OF SILVER, GOLD AND ALLOYS THEREOF HAVING A MELTING POINT GREATER THAN 700*C.
Claim 2
Dependent Claim
155 words
A PROCESS FOR THE PRODUCTION OF FIRE POLISHED GLASS COMPRISING FORMING A CONTINUOUS SHEET OF GLASS, FORMING IN A TANK, A BATH OF MOLTEN METAL AT A WORKING TEMPERATURE ABOVE 750*C., SAID MOLTEN METAL BEING INERT TO AIR, TO THE GLASS AND TO THE TANK, SLIDING SAID CONTINUOUS SHEET LONGITUDINALLY ON SAID BATH AND MOVING THE SHEET ALONG THE BATH WITH THE USE OF SOLID MEMBERS ACTING ON THE SHEET WHICH HAS LEFT THE BATH, MAINTAINING ABOVE 750* C. THE TEMPERATURE OF THE BATH WHERE THE CONTINUOUS GLASS SHEET COMES INTO CONTACT WITH SAID MOLTEN METAL, AND DIMINISHING THE TEMPERATURE OF THE SHEET IN THE SLIDING DIRECTION OF THE SHEET, THE REDUCTION OF TEMPERATURE BEING SUFFICIENT TO AVOID DAMAGE OF THE SHEET DUE TO BEING MECHANICALLY ACTED UPON BY THE SOLID MEMBERS, SAID BATH OF MOLTEN BEING SELECTED FROM THE GROUP CONSISTING OF SILVER, GOLD AND ALLOYS THEREOF HAVING A MELTING POINT GREATER THAN 700*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |