US3567414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for supporting glass sheet by combined action of liquid and gas
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1967-12-26
•
Granted: 1971-03-02
•
Expires: 1987-12-26
Abstract
Abstract MOVING MOLTEN SHEET GLASS IS SUPPORTED ON LIQUID LANDS FORMING ANNULI WITHIN WHICH GAS UNDER PRESSURE COMBINES TO SUPPORT THE SHEET IN A FLAT CONDITION. LENGTHS OF DRAWN MATERIAL, SUCH AS GLASS SHEET, ARE SEQUENTIALLY PASSED OVER AND IN FLUID-TIGHT CONTACT WITH LIQUID OR MOLTEN METAL LANDS FORMING ENCLOSURES OF RESPECTIVE AREAS OF THE SHEET INSTANTANEOUSLY CONTACTED AND SUPPORTED BY THE LANDS, WHILE PASSING TREATING FLUID INTO SUCH ENCLOSURES TO EFFECT A PREDETERMINED TREATMENT OF THE GLASS. THE TREATING FLUIDS ARE UNDER LOW PRESSURE, WHICH ASSISTS IN SUPPORTING THE SHEET. D R A W I N G
Inventors
- 👤 Stephane Dufaure De Lajarte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:33
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/22; C03B35/24; C03B35/246; C03C; C03C17/00; C03C17/001; C03C17/002; C03C17/06; C03C17/09; C03C23/00; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/251; C03C2217/254; C03C2217/256; C03C2218/00; C03C2218/10; C03C2218/15; C03C2218/30; C03C2218/32; C03C2218/324; C03C2218/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |